CN103228366A - Method for impregnating workpiece having pores, and cleaning device for removing impregnating agent residues from workpiece - Google Patents
Method for impregnating workpiece having pores, and cleaning device for removing impregnating agent residues from workpiece Download PDFInfo
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- CN103228366A CN103228366A CN201180053084XA CN201180053084A CN103228366A CN 103228366 A CN103228366 A CN 103228366A CN 201180053084X A CN201180053084X A CN 201180053084XA CN 201180053084 A CN201180053084 A CN 201180053084A CN 103228366 A CN103228366 A CN 103228366A
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- cleaning fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F3/26—Impregnating
Abstract
The present invention relates to a cleaning device for removing impregnating agent residues from a workpiece (12) using a cleaning fluid (14), with a supply device (16) for supplying the cleaning fluid (14) to the workpiece (12), a receiving space (18) for receiving the workpiece (12) during the cleaning operation, and a gravity separator (20) for separating the impregnating agent residues, which have been removed from the workpiece (12), from the cleaning fluid (14), wherein the gravity separator (20) is arranged below the receiving space (18) for the workpiece (12) in the direction of gravity.
Description
Technical field
The present invention relates to a kind of method and apparatus that is used for removing impregnating agent remnants from the dipping workpiece, and a kind of method with impregnating agent dipping porous workpiece, wherein, remove impregnating agent remnants from body surface with described cleaning device, then solidify described impregnating agent again.
Described method is particularly suitable for being used for flooding workpiece, for example metalwork, metal casting, mineral aggregate, pottery, timber, coal, graphite and other porous materials.
Background technology
Dipping method is known already, and for example british patent specification 1,547, and 801 what disclose is exactly dipping method.Use thermosetting impregnating agent, polyester-based impregnating agent for example, but main (methyl) the acrylate-based impregnating agent that uses.Prior art is flooded porous body to be impregnated with liquid thermosetting impregnating agent usually, then water exists under the situation of surfactant from body surface eccysis impregnating agent remnants, water flushing under the situation of not adding surfactant then, with mode of heating, especially in tank (polymerization tank), solidify impregnating agent at last.For making things convenient for the remaining dissolving of impregnating agent, surfactant is also added in suggestion in impregnating agent, and uses one or more water-soluble monomer in impregnating agent.Therefore, impregnating agent on sale in the market comprises surfactant and water-soluble monomer, and for example the solubility in (20 ° of C) water is about the hydroxy propyl methacrylate of 15wt%.The fact shows that the multipotency of processing mode in the past is dissolved in the slurry 25wt% in the residue impregnating agent that is removed.Consequently impregnating agent remnants transfer in the groove of back and are deposited in the polymerization tank, cause macerate surface and groove to be polluted.For legacy equipment, this just requires regularly to abandon employed groove.Impregnating agent remnants also can exhaust on some monomer component, thereby have only by handling and impregnating agent remnants could being reused for dipping.
DE2718770 and DE4410193 also disclose dipping method, and it uses thermosetting methacrylate/acrylate, and remove it with washing agent from the surface.Then in hot water storgae, finish curing.
In this resin, add nonionic surface active agent and water-soluble monomer to make things convenient for eccysis.
Therefore, commercially available impregnating resin comprises nonionic surface active agent and water-soluble monomer.The water soluble surfactant active is insoluble to water-insoluble monomer.
For making the resin system that can use once again, be not suitable in resin, adding water-soluble monomer, because knowing from experience, water-soluble mono accumulates in the water, can't from water, be recycled, the resin that is reclaimed can be exhausted on these components.
DE 100 62 316 and JP 4154822 describe respectively a kind of under the situation of not adding surfactant in sink the water-insoluble monomer methods of eccysis.Wherein have bigger a part of impregnating resin to residue in the dipping surface of the work with the form of oiliness film, according to the method described in the DE 100 62 316, this part impregnating resin is transferred in the flushed channel and in herein by eccysis again.From reclaiming resin the flushed channel again,, pollutes this part resin because being partially soluble in the detergent component of resin.According to the method described in the JP4154822, resin is directly transferred in the polymerization tank (hot water storgae).These two kinds of methods are all by gravity separator separation resin from slurry.Resin upwards deposits in tank, and prior art is with pump resin to be drawn in the gravity separator from here.Resin is in surface isolation after entering gravity separator, subsequently skim in addition just.
From the process of flume surface suction, the resin that is deposited on the surface just mixes with water again, this just requires to design gravity separator corresponding bigger, occurring in the pump this mixes again and influenced by pump discharge can partly to cause the separation in the gravity separator insufficient, make resin be sent back to tank again, cause the separative efficiency or the rate of recovery to descend.When the continuous heap(ed) capacity of the resin of tank was higher, this effect was more obvious.
Summary of the invention
The purpose of this invention is to provide a kind of method and apparatus that is used for removing impregnating agent remnants from workpiece, and the liquid impregnating agent of a kind of usefulness is impregnated with the method for porous body, this method can farthest be avoided enrichment impregnating agent in the slurry, thereby slurry can be used for a long time, and need not to carry out complicated just handle again and can be recycled removing the residue impregnating agent that oneself floods object.
The fact shows, can reach above-mentioned purpose by device of the present invention and method of the present invention.
The present invention relates to a kind of cleaning device that removes impregnating agent remnants with cleaning fluid from workpiece, it comprise be used for to workpiece carry cleaning fluid conveying device, be used for the gravity separator that the accommodation space at the ccontaining workpiece of cleaning process, the impregnating agent remnants that are used for removing from workpiece are separated from cleaning fluid, wherein, gravity separator is being arranged on the gravity direction below the workpiece accommodation space.
" accommodation space " refers to any space that is suitable for ccontaining workpiece.It needs not to be enclosure space or sealing chamber.Conveying device only need provide a space and workpiece is contained in wherein, so that can be carried cleaning fluid to this workpiece.For example, available suitable fixture is fixed on workpiece in the accommodation space.Specificly workpiece can be automatically positioned on accommodation space and during carrying cleaning fluid, use the fixture fixation workpiece to workpiece.Can from accommodation space, remove workpiece (preferably being to finish automatically equally) subsequently and be sent to other treatment steps.
The advantage of apparatus of the present invention is easily the impregnating agent remnants that remove from workpiece to be separated from cleaning fluid.The reason why process of separation impregnating agent remnants can obtain simplifying is that mainly this device can separate impregnating agent remnants when workpiece is carried cleaning fluid.So just needn't separate impregnating agent remnants with independent device again.In addition, device of the present invention can also continuous easily repeated multiple times be implemented cleaning process.That is to say that the first step is to carry cleaning fluid to workpiece, then isolates impregnating agent remnants from this part cleaning fluid.Then the cleaning fluid that for example will be removed impregnating agent remnants with pump is sent conveying device once again back to, by conveying device it is flowed to workpiece again again.So just can utilize the thorough cleaning workpiece of a plurality of operating procedures easily, and workpiece needn't leave device of the present invention for this reason.
According to the optimal technical scheme of cleaning device of the present invention, described conveying device is being arranged on the gravity direction above the described workpiece accommodation space.
Described conveying device preferably has at least one and is used for cleaning fluid is sprayed onto nozzle on the workpiece.
According to useful technical scheme, described gravity separator has the guide face that tilts to extend at its top, these guide faces are arranged in the radial outside zone of gravity separator, radially extend downwards towards the gravity separator inner inclination, and feed the vertical passage that extends in its lower end along gravity direction, this passage is specific to be arranged in gravity separator central authorities and for example to feed the disengagement chamber that comprises cleaning immersion liquid (cleaning fluid and impregnating agent remnants) below the shared volume of deposition impregnating agent.
Particularly preferably, the lower end of described passage is communicated with at least one disengagement chamber fluid, and this disengagement chamber extends upward along gravity direction on the passage next door, and wherein, passage and disengagement chamber zone are at an upper portion thereof separated by channel side wall.
Further preferably, described at least one disengagement chamber has skimming device, particularly skimmer in the top, is used for the impregnating agent remnants that skim is separated under the gravity effect.
Optimal technical scheme according to apparatus of the present invention, the lower area of described gravity separator is communicated with the feedback pipeline fluid, this feedback pipeline is used for sending the cleaning fluid of separating back to conveying device under the gravity effect, wherein, described feedback pipeline extends to conveying device always and specificly has a pump that is used for cleaning fluid is sent to conveying device from the lower area of gravity separator.
The invention still further relates to a kind of dipping method that hole workpiece is arranged, may further comprise the steps:
A) preferred heat cured liquid impregnating agent is sent into the hole of workpiece,
B) remove impregnating agent remnants with device of the present invention from surface of the work, and
C) preferably solidify impregnating agent by heating dipping workpiece.
The invention still further relates to and a kind ofly remove the method for impregnating agent remnants, may further comprise the steps from workpiece:
I) workpiece that will have impregnating agent remnants is positioned accommodation space,
The cleaning fluid that ii) will be used to remove impregnating agent remnants is applied to the dipping workpiece,
Iii) will clean immersion liquid and send into the gravity separator that the impregnating agent remnants that are used for removing from workpiece separate from cleaning fluid,
Iv) apply the cleaning fluid that is removed impregnating agent remnants substantially according to circumstances again, and
V) from gravity separator, reclaim impregnating agent remnants according to circumstances, and according to circumstances this part impregnating agent remnants be used for once again dipping,
Wherein, gravity separator is being arranged on the gravity direction below the workpiece accommodation space.
According to useful technical scheme of the present invention, described impregnating agent or the described impregnating agent remnants that removed with cleaning agent are water insoluble substantially.Water-soluble degree during 20 ° of C preferably is lower than 2wt%, especially preferably is lower than 1wt%, specificly is lower than 0.5wt%, for example is up to 0.25wt%.
The present invention finds that unexpectedly special anion surfactant that is comprised in the cleaning solution or nonionic surface active agent can be optimized cleaning efficiency and ensuing separative efficiency.Use this class surfactant for example can be in sink the dipping surface of cleaning workpiece, and needn't use flushed channel again.
Preferably surfactant is added in the cleaning fluid used in the present invention.The present invention is particularly suitable for using the cleaning fluid that is insoluble to used impregnating agent basically.Impregnating agent solubility therein is lower than 5wt% during 20 ° of C, preferably is lower than 2wt%, specificly is lower than 1wt%, and the cleaning fluid that contains surfactant that for example is up to 0.5wt% is preferred cleaning fluid.By selecting special surfactant, the present invention has had another beat all discovery: a cleaning fluid is provided, and impregnating agent is insoluble to this cleaning fluid substantially, and its effectiveness is limited to washing process, then cleans immersion liquid and is separated into impregnating agent and cleaning fluid rapidly.This point is extremely unusual, occurs distribution equilibrium because original expection is surfactant concentration in the water and impregnating agent between mutually.But in the cleaning fluid of use preferred for this invention, do not find this phenomenon.
The present invention finds unexpectedly that further the preferred anion surfactant that uses does not cause the impregnating agent polymerization in cleaning fluid.This situation might take place, but beat all be true really not so because the solubility in resin is low excessively.
Surfactant according in the impregnating agent selection cleaning fluid is not suitable for using the commercial mixture, because often comprise the nonionic surface active agent that is dissolved in impregnating agent in the commercial mixture.
Select preferred nonionic surfactants and anion surfactant according to the solubility test in the resin, preferably use the HLB value to be higher than 14 surfactant, because this class surfactant in most cases is insoluble to resin.Method according to Davies is measured the HLB value, and Davies is in the HLB value of nineteen fifty-seven proposition for each chemical group evaluation form of molecule.The advantage of this method is that the weight of the group that reciprocation is strong is higher than reciprocation more weak group relatively.In addition, also can define the HLB value of ionic surfactant in this way.The HLB value computing formula of Davies is:
HLB=7+m·H
h-n·H
l
Wherein:
M: the hydrophilic radical number in the molecule
H
h: the value of hydrophilic radical
N: the lipophilic group number in the molecule
H
l: the value of lipophilic group
（DaviesJT:"Aquantitativekinetictheoryofemulsiontype,I.Physicalchemistryofthe?emulsifyingagent,"Gas/LiquidandLiquid/LiquidInterface.ProceedingsoftheInternational?CongressofSurfaceActivity(1957):426-438）
According to preferred implementation of the present invention; method of the present invention or the employed cleaning fluid of device of the present invention comprise anion surfactant; it is selected from basic salt and/or ammonium salt group that the N-alkyl replaces methyl amimoacetic acid, preferably is made of Hamposyl L (N-methyl-N-(1-oxo dodecyl)-glycine), cocoyl methyl amimoacetic acid, myristoyl-N-methylaminoacetic acid, oleoyl sarcosine and Hamposyl S.The preferred sodium salt that uses.
Further, described cleaning fluid preferably comprises the anion surfactant that is selected from alkyl, polyether sulfate or alkyl, polyether sulfonate group.(ethoxylated dodecyl alcohol sodium sulphate, English is Sodium Laureth Sulfate, SLES) particularly preferably to be the dodecyl polyethenoxy ether sodium sulfate.
According to embodiment, cleaning fluid used in the present invention comprises pK
bValue is preferably greater than 3 greater than 0, further is preferably greater than 4, is preferably greater than 5 especially, further is preferably greater than 8 especially, the anion surfactant more preferably greater than 9.
According to preferred implementation, cleaning fluid used in the present invention also comprises nonionic surface active agent.Described nonionic surface active agent is preferably selected from the group that ethoxylation sorbitol ester and ethoxylated alcohol (especially ethoxylized fatty alcohol) are formed especially.
Cleaning fluid used in the present invention is preferably aqueous rinsing liquid and comprises anion surfactant and/or nonionic surface active agent, the content of described surfactant preferably accounts for the 0.1wt% to 15wt% of cleaning fluid weight, more preferably 0.5wt% to 5wt%.
By in cleaning agent used in the present invention, using above-mentioned surfactant, can when implementing method of the present invention, obtain optimum efficiency, particularly aspect the rate of recovery, thereby reduce the impregnating agent remnants that transfer in the tank.
Impregnating agent upwards deposits in tank, and prior art is with pump resin to be drawn in the gravity separator from here.Resin is in surface isolation after entering gravity separator, subsequently skim in addition just.
From the process of flume surface suction, the resin that is deposited on the surface just mixes with water again, this just requires to design gravity separator corresponding bigger, occurring in the pump this mixes again and influenced by pump discharge can partly to cause the separation in the gravity separator insufficient, make resin be sent back to tank again, cause the separative efficiency or the rate of recovery to descend.When the continuous heap(ed) capacity of the resin of tank was higher, this effect was more obvious.
The inventive method and apparatus of the present invention based on principle be that the resin that is deposited in the tank can be separated rapidly in tank.Preferably realize separating by skimmer.Can under the situation of considering structural style and discharge rate, adjust skimmer according to different discharge rates.
Type by skimmer makes the surface move/rotate, and the deposition resin is adsorbed by skimmer.
Therefore according to the optimal technical scheme of apparatus of the present invention, this device further has the skimmer that is used for the impregnating agent that skim is separated.
In order to remove the preferred implementation of the method for impregnating agent remnants from workpiece, this method comprises the step that reclaims impregnating agent remnants by skimmer equally according to the present invention.
The impregnating agent remnants that are separated might have a spot of water and pollutant or dust.
Described skimmer can be different structural styles, for example disc type skimmer, hose type skimmer or belt skimmer, preferably hose type skimmer.
After from cleaning fluid, separating, can also for example make further purified treatment to the impregnating agent that is separated according to circumstances, so that from impregnating agent, isolate fine dust, water or other impurity by filter or similar devices.
From disengagement chamber (26a, 26b) or the impregnating agent composition of separating in the sink do not change, therefore also sorbent surface activating agent from sink not can directly use once again basically.
The design that apparatus and method of the present invention adopted can obtain good clean result, also can be at sink or disengagement chamber (26a, realize 26b) effectively separating, therefore only a small amount of impregnating agent is transferred in the hot water storgae of back, need be in hot water storgae the cured resin of skim also fewer.
Preferably also use skimmer in the hot water storgae, so that remove the low amounts of resin that might shift and from hole, come up from the surface.
Compared with prior art, the advantage of apparatus of the present invention and the inventive method mainly is to have saved flushed channel.
According to useful technical scheme of the present invention, described impregnating agent or the described impregnating agent remnants that removed with cleaning agent are water insoluble substantially.Water-soluble degree during 20 ° of C preferably is lower than 2wt%, especially preferably is lower than 1wt%, specificly is lower than 0.5wt%, for example is up to 0.25wt%.
Impregnating agent used in the present invention preferably comprises the liquid monomer or the oligomer of radical polymerization.Preferred preferably water-fast substantially acrylate and/or the methacrylate of using.
Described impregnating agent preferably is contained in about be carried out the acrylate and the methacrylate of description in the document of radical polymerization mainly as the impregnating agent component, wherein, selects the acrylate and the methacrylate of preferred substantially anhydrous dissolubility.Suitable monofunctional monomer for example is the Arrcostab and the cycloalkyl ester of acrylic acid/methacrylic acid, as Hexyl 2-propenoate/hexyl methacrylate, Isooctyl acrylate monomer/EHMA, dodecyl acrylate/metering system dodecyl gallate, acrylic acid tridecane ester/tridecyl methacrylate, isotridecyl methacrylate, octadecyl acrylate, stearyl acrylate acid esters and acrylic acid cyclohexyl ester/cyclohexyl methacrylate.
Preferably in described mixture, further use bifunctional monomer and/or polyfunctional monomer.Bifunctional monomer and/or polyfunctional monomer for example can be used for improving chemical resistance and hear resistance.At this measure tetraethylene glycol diacrylate, triethylene glycol diacrylate, trimethylol-propane trimethacrylate is example.The consumption of bifunctional monomer and/or polyfunctional monomer accounts for the 0.1wt% to 30wt% of monomer total amount.
In order to solidify the impregnating agent of free redical polymerization, can add custom catalysts, as azo catalyst (for example azodiisobutyronitrile) and peroxide catalyst, for example benzoyl peroxide, methyl ethyl ketone peroxide, isopropyl benzene hydroperoxide.Catalyst in the described impregnating agent (radical initiator) content preferably accounts for the 0.1wt% to 5wt% of impregnating agent gross weight.
According to optimal technical scheme, described impregnating agent comprises the stabilizing agent that is used to improve storage-stable.These stabilizing agents for example are hydroquinones, replacement hydroquinones and alkyl phenol.The consumption of stabilizing agent preferably accounts for the 0.01wt% to 2wt% of impregnating agent gross weight.
According to of the present invention the hole workpiece dipping method arranged, preferably in steeper, described liquid impregnating agent is sent into the hole of workpiece.
Described steeper can be the container commonly used of the ccontaining impregnating agent of energy.Can be by simple immersion, exert pressure or mode such as vacuum is finished dipping.Need porous body to be impregnated is sent into empty autoclave for this reason.Apply and preferably be lower than 15mbar, after the specific vacuum that is lower than 10mbar, impregnating agent is poured into thermal compressor.Then cancel vacuum; Under the pressure differential effect between vacuum and the atmospheric pressure, resin infiltrates the hole of workpiece to be impregnated.
Finishing the dipping back takes out workpiece and sends into the water-based rinse bath or device of the present invention from autoclave.Removing of impregnating agent remnants can be carried out under the situation of motion, but preferably realizes by implement the spray operation in device of the present invention.The container of sink is the container commonly used of this respect, for example is used for conventional rotation washing, spray Cleaning for High Capacity, ultrasonic wave cleaning or immersion and cleans.
After removing impregnating agent remnants the dipping workpiece is cured processing.Preferably with the resin in the mode of heating curing hole; But also can be cured with ultraviolet ray or X-radiation.Preferably in being up to the tank, polymerization tank of 98 ° of C for example, operating temperature is cured.For example be 2 to 10 minutes hardening time, specifically decides on the quality and the temperature capacity of workpiece to be impregnated.In polymerization tank, can rinse out last surfactant and impregnating agent component simultaneously.
According to the present invention, described impregnating agent reality in first sink that carries out work with cleaning fluid used in the present invention or disengagement chamber does not change.Can from water, isolate impregnating agent by for example mode such as skim or Gravity Separation/centrifugation.The impregnating agent of separating from the disengagement chamber of first sink or apparatus of the present invention need not by analysis and further handles again just can be used for impregnation steps once again.
If in polymerization tank, be cured, also can be used for the device of separating floating impregnating agent for this polymerization tank configuration, for example skimmer.Also need to abandon the resin that is separated according to circumstances, if the partially or completely polymerization of this part resin.
In the employed herein method, can remove resin from the water surface by disc type skimmer, belt skimmer, hose type skimmer.
Can make impregnation process to porous workpiece by processing mode of the present invention.Porous workpiece for example is metalwork, metal casting, mineral aggregate, pottery, timber, coal, graphite and other porous materials.Its advantage is that employed groove reaches stable state by the turnover of workpiece to be impregnated, thereby needn't change water, and system can realize not having the draining operation.So just needn't be as prior art the regular groove that changes, also needn't be to the sewer draining.Can directly treat the residue impregnating agent that from dipping tank, carries out in the macerate surface in addition and utilize once again, and can not lose wherein component.
Useful especially is that method of the present invention can be implemented continuously.
Example
Prepare following impregnating resin mixture:
Table 1:
Impregnating agent listed in the preparation table 1 is formed.
In a vacuum porosity is about 20% aluminium matter sintered ring and makes impregnation process.Washing surface in the sink of anion that water and 2% are housed or nonionic surface active agent then.Polymerisation in the hole was carried out in water 10 minutes under the temperature of about 90 ° of C.Dipping process is implemented twice altogether.
Ring to be sintered cooling back check sealing effectiveness, air pressure is not find leak source under the condition of 5bar under water.
200 ° of C temperature loads of 24 hours do not cause variation.
Description of drawings
Fig. 1 is the embodiment schematic diagram of apparatus of the present invention.
The specific embodiment
With reference to the accompanying drawings preferred implementation of the present invention is described.
Accompanying drawing is the embodiment schematic diagram of apparatus of the present invention.As shown in the figure, workpiece (12) is fixed in the accommodation space (18).This point can be finished automatically by suitable fixture.Cleaning fluid (14) is transported on the workpiece (12) by two nozzles (16).In this process, remove impregnating agent remnants from workpiece (12).Cleaning fluid (14) is fallen into gravity separator (20) with the impregnating agent remnants that are removed under the gravity effect, wherein, dropping, (22a, 22b) liquid on is directed to gravity separator (20) central authorities on the inclined-plane.
As shown in the figure, accommodation space (18) is arranged in gravity separator (20) top on gravity direction.Two nozzles (16) then are arranged in accommodation space (18) top.
Be positioned at the passage (24) of gravity separator (20) central authorities lower end and at least one disengagement chamber (26a, 26b) fluid is communicated with, this disengagement chamber extends upward along gravity direction by passage (24).For example, gravity separator (20) can be cylindrical, and (26a 26b) then slightly extends around passage (24) disengagement chamber.In the case, (26a 26b) is connected with each other and forms a unique disengagement chamber two disengagement chambers.
The lower area of gravity separator (20) is connected with two nozzles (16) by feedback pipeline (30).The cleaning fluid (14) that will be removed impregnating agent remnants with pump (34) is sent to nozzle (16) again.
Claims (10)
1. one kind removes the cleaning device of impregnating agent remnants with cleaning fluid (14) from workpiece (12), and it comprises
Be used for carrying the conveying device (16) of described cleaning fluid (14) to described workpiece (12),
Be used for accommodation space (18) at the ccontaining described workpiece of cleaning process (12),
Be used for the gravity separator (20) that will separate from described cleaning fluid (14) from the impregnating agent remnants that described workpiece (12) remove,
Wherein, described gravity separator (20) is arranged in accommodation space (18) below that is used for described workpiece (12) on gravity direction.
2. cleaning device according to claim 1 is characterized in that, described conveying device (16) is arranged in accommodation space (18) top that is used for described workpiece (12) on gravity direction.
3. cleaning device according to claim 1 and 2 is characterized in that, described conveying device (16) has at least one and is used for described cleaning fluid (14) is sprayed onto nozzle on the described workpiece (12).
4. according to the described cleaning device of each claim in the claim 1 to 3, it is characterized in that, described gravity separator (20) has the guide face (22a that tilts to extend at its top, 22b), described guide face is arranged in the radial outside zone of described gravity separator (20), radially extend downwards towards described gravity separator (20) inner inclination, and feed the passage (24) that vertically extends in its lower end along gravity direction, the special preferred arrangements of described passage is in described gravity separator (20) central authorities.
5. cleaning device according to claim 4, it is characterized in that, the lower end of described passage (24) and at least one disengagement chamber (26a, 26b) fluid is communicated with, described disengagement chamber extends upward along gravity direction on described passage (24) next door, wherein, and described passage (24) and described disengagement chamber (26a, it is 26b) regional at an upper portion thereof that (28a 28b) separates by channel side wall.
6. cleaning device according to claim 5 is characterized in that, (26a 26b) has skimming device (32), particularly oil skimmer to described at least one disengagement chamber in the top, is used for the impregnating agent remnants that skim is separated under the gravity effect.
7. according to the described cleaning device of each claim in the claim 1 to 6, it is characterized in that, the lower area of described gravity separator (20) is communicated with feedback pipeline (30) fluid, the cleaning fluid (14) that described feedback pipeline is used for separating under the gravity effect is sent described conveying device (16) back to, wherein, described feedback pipeline (30) extends to described conveying device (16) always and specificly has a pump (34) that is used for described cleaning fluid (14) is sent to described conveying device (16) from the lower area of described gravity separator (20).
8. dipping method that hole workpiece is arranged may further comprise the steps:
A) preferred heat cured liquid impregnating agent is sent into the hole of workpiece,
B) use according at least one described device of claim in the claim 1 to 7 and remove impregnating agent remnants from described surface of the work, and
C) preferably solidify described impregnating agent by heating described dipping workpiece.
9. one kind removes the method for impregnating agent remnants from workpiece, may further comprise the steps:
I) workpiece (12) that will have impregnating agent remnants is positioned accommodation space (18),
The cleaning fluid (14) that ii) will be used to remove impregnating agent remnants is applied to described dipping workpiece,
Iii) will clean immersion liquid and send into the gravity separator (20) that the impregnating agent remnants that are used for removing from described workpiece (12) separate from described cleaning fluid (14),
Iv) apply the cleaning fluid (14) that is removed impregnating agent remnants substantially according to circumstances again, and
V) from described gravity separator (20), reclaim described impregnating agent remnants according to circumstances, and according to circumstances described impregnating agent remnants be used for once again dipping,
Wherein, described gravity separator (20) is arranged in accommodation space (18) below that is used for described workpiece (12) on gravity direction.
10. according at least one described device of claim or method according to claim 9 in the claim 1 to 7, it is characterized in that, described cleaning fluid is a water prescription, and its HLB value with 0.1wt% to 15wt% is higher than 14 nonionic surface active agent and/or anion surfactant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010050202.2A DE102010050202B4 (en) | 2010-11-04 | 2010-11-04 | Cleaning device and impregnation method |
| DE102010050202.2 | 2010-11-04 | ||
| PCT/EP2011/068875 WO2012059397A1 (en) | 2010-11-04 | 2011-10-27 | Method for impregnating a workpiece having pores, and cleaning device for removing impregnating agent residues from the workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103228366A true CN103228366A (en) | 2013-07-31 |
| CN103228366B CN103228366B (en) | 2016-11-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130674A (en) * | 1977-08-17 | 1978-12-19 | Detrex Chemical Industries, Inc. | Process of controlling organic coatings in aqueous spray booth systems |
| US5149441A (en) * | 1991-10-18 | 1992-09-22 | Loctite Corporation | Method of treating wastewater containing heat-curable (meth) acrylic monomer compositions |
| DE4410193A1 (en) * | 1994-03-24 | 1995-09-28 | Degussa | Sealing of porous articles with curable impregnating fluid |
| DE10062316A1 (en) * | 2000-12-14 | 2002-07-11 | Int Metall Impraegnier Gmbh | Method and device for impregnating porous objects |
| CN201567276U (en) * | 2009-09-17 | 2010-09-01 | 东台市东方船舶装配有限公司 | Marine oily water separating treatment device |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4130674A (en) * | 1977-08-17 | 1978-12-19 | Detrex Chemical Industries, Inc. | Process of controlling organic coatings in aqueous spray booth systems |
| US5149441A (en) * | 1991-10-18 | 1992-09-22 | Loctite Corporation | Method of treating wastewater containing heat-curable (meth) acrylic monomer compositions |
| DE4410193A1 (en) * | 1994-03-24 | 1995-09-28 | Degussa | Sealing of porous articles with curable impregnating fluid |
| DE10062316A1 (en) * | 2000-12-14 | 2002-07-11 | Int Metall Impraegnier Gmbh | Method and device for impregnating porous objects |
| DK1409162T3 (en) * | 2000-12-14 | 2009-06-29 | Int Metall Impraegnier Gmbh | Method and device for impregnating porous articles |
| CN201567276U (en) * | 2009-09-17 | 2010-09-01 | 东台市东方船舶装配有限公司 | Marine oily water separating treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2635383B1 (en) | 2016-08-31 |
| DE102010050202B4 (en) | 2016-06-23 |
| EP2635383A1 (en) | 2013-09-11 |
| DE102010050202A1 (en) | 2012-05-10 |
| WO2012059397A1 (en) | 2012-05-10 |
| ES2604927T3 (en) | 2017-03-10 |
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