CN104162675A - Method for manufacturing iron-based diamond cutter teeth - Google Patents
Method for manufacturing iron-based diamond cutter teeth Download PDFInfo
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- CN104162675A CN104162675A CN201410349422.XA CN201410349422A CN104162675A CN 104162675 A CN104162675 A CN 104162675A CN 201410349422 A CN201410349422 A CN 201410349422A CN 104162675 A CN104162675 A CN 104162675A
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Abstract
The invention discloses a method for manufacturing iron-based diamond cutter teeth. The method includes the following steps of preparing green body material through framework material and adhesive metal, mixing the material after preparation, packaging the material after mix so as to be subjected to thermal pressing formation, cooling the material after thermal pressing formation, and machining the material after cooling, wherein the material prepared in the green body material preparation process include, by weight, 55% of iron powder, 30% of copper powder, 10% of cobalt powder and 5% of tin powder, diamond accounting for 5.04% of the total weight of the green body material is added in the mixing process, the material is mixed in a stainless steel ball mill, the material to ball ratio is 1:2, the rotation speed of the ball mill is 46 r/min, the material mixing time ranges from 12 hours to 35 hours, the sintering temperature in thermal pressing formation is 850 DEG C, the sintering time ranges from 10 minutes to 15 minutes, the pressure ranges from 12 Mpa to 13 Mpa, and the tapping temperature is 400 DEG C. A thin-walled diamond drill bit formed by the diamond cutter teeth cuts concrete at the speed larger than 45 mm/min, and cuts the section of a reinforcing steel bar at the speed larger than 560 mm/min, and the service life of the drill bit can reach 30 m.
Description
Technical field
The present invention relates to a kind of manufacture method of diamond cutter tooth, especially a kind of manufacture method of iron-based diamond cutter tooth.
Background technology
On market, in manufacturing the process of diamond cutter tooth, need some fixed cutting elements to make adamantine binding agent, binding agent is divided into metal adhesive, resinoid bond, vitrified bonding etc., and wherein metal adhesive is the main component of making diamond tool.Existing production technology is with copper, cobalt, nickel, the metal powders such as tin add diamond to mix, through high temperature (more than 800 ℃), make diamond cutter tooth after hot pressed sintering is cooling, again diamond cutter tooth is welded on steel drilling pipe and makes thin faced bit, in thin faced bit is manufactured, manufacturer adopts cobalt-based element (containing cobalt amount 50 ~ 99%) to manufacture mostly both at home and abroad, because the property sintering carcass of cobalt powder has higher compactness and sintered material hardness, make cobalt-based diamond bit sharp durable again when cutting diamond concrete, but cobalt element is mineral resources more rare on the earth, expensive, and it is sharp wear-resisting performance again that the drill bit that the diamond cutter tooth making with additive method makes does not have.
Summary of the invention
The object of the invention is solve to adopt cobalt-based element to make diamond cutter tooth expensive, and the drill bit that makes of the diamond cutter tooth making with additive method not have be the sharp problem of wear-resisting performance again.
The technical solution used in the present invention is: a kind of manufacture method of iron-based diamond cutter tooth, comprise the following steps: with framework material and bonded metal carry out carrying out after the preparation of carcass material, preparation batch mixing, batch mixing complete after charging carry out carrying out after hot-forming, hot-forming after cooling, cooling carrying out machining, the batching in wherein said carcass material process for preparation comprises iron powder 55%(percentage by weight), copper powder 30%(percentage by weight), cobalt powder 10%(percentage by weight), glass putty 5%(percentage by weight); In batch mixing process, adding weight is 5.04% diamond of carcass material gross weight, and batch mixing carries out in rust steel ball grinder, and material ball ratio is 1:2, and ball mill revolution is 46r/min, and mixing time is 12～35h; 400 ℃ of 850 ℃ of sintering temperatures when hot-forming, sintering time 10～15min, pressure 12～13Mpa, tapping temperature.。
The beneficial effect that the present invention adopts is: by metal powder being studied in manufacturing process, make cobalt element powder use proportion control in 10%, the technical performance of the diamond cutter tooth of producing approaches and reaches the technical indicator that adopts the diamond cutter tooth that cobalt-based system makes, adopt after the formula of invention, carcass cobalt content is less than 10%, reduced the consumption of rare metal, the speed that adopts thin faced bit cutting concrete intensity that this diamond cutter tooth manufactures to be greater than 45mm/min, cutting reinforcing bar cross section is greater than 560mm/min, bit life can reach 30m.
The specific embodiment
The present invention relates to a kind of manufacture method of iron-based diamond cutter tooth, comprise the following steps: with framework material and bonded metal carry out carrying out after the preparation of carcass material, preparation batch mixing, batch mixing complete after charging carry out carrying out after hot-forming, hot-forming after cooling, cooling carrying out machining (machining refers to diamond cutter tooth is put the first edge on a knife or a pair of scissors), the batching in wherein said carcass material process for preparation comprises iron powder 55%(percentage by weight), copper powder 30%(percentage by weight), cobalt powder 10%(percentage by weight), glass putty 5%(percentage by weight); In batch mixing process, adding weight is 5.04% diamond of carcass material gross weight, and batch mixing carries out in rust steel ball grinder, and material ball ratio is 1:2, and ball mill revolution is 46r/min, and mixing time is 12～35h; 400 ℃ of 850 ℃ of sintering temperatures when hot-forming, sintering time 10～15min, pressure 12～13Mpa, tapping temperature.By metal powder being studied in manufacturing process, make cobalt element powder use proportion control in 10%, carcass technical performance approaches and reaches the technical indicator of cobalt-based body, adopt after the formula of invention, the cobalt content of diamond cutter tooth is less than 10%, reduced the consumption of rare metal, the hardness of diamond cutter tooth capable of regulating within the scope of HRC20-1-HRC35, the speed that adopts thin faced bit cutting concrete intensity that this diamond cutter tooth manufactures to be greater than 45mm/min, cutting reinforcing bar cross section is greater than 560mm/min, bit life can reach 30m.
Those skilled in the art should know; protection scheme of the present invention is not limited only to the above embodiments; can also on the basis of above-described embodiment, carry out various permutation and combination and conversion; under the prerequisite without prejudice to spirit of the present invention, the various conversion that the present invention is carried out all drop in protection scope of the present invention.
Claims (1)
1. the manufacture method of an iron-based diamond cutter tooth, it is characterized in that comprising the following steps: with framework material and bonded metal carry out carrying out after the preparation of carcass material, preparation batch mixing, batch mixing complete after charging carry out carrying out after hot-forming, hot-forming after cooling, cooling carrying out machining, the batching in wherein said carcass material process for preparation comprises iron powder 55%(percentage by weight), copper powder 30%(percentage by weight), cobalt powder 10%(percentage by weight), glass putty 5%(percentage by weight); In batch mixing process, adding weight is 5.04% diamond of carcass material gross weight, and batch mixing carries out in rust steel ball grinder, and material ball ratio is 1:2, and ball mill revolution is 46r/min, and mixing time is 12～35h; 400 ℃ of 850 ℃ of sintering temperatures when hot-forming, sintering time 10～15min, pressure 12～13Mpa, tapping temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349422.XA CN104162675A (en) | 2014-07-22 | 2014-07-22 | Method for manufacturing iron-based diamond cutter teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349422.XA CN104162675A (en) | 2014-07-22 | 2014-07-22 | Method for manufacturing iron-based diamond cutter teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104162675A true CN104162675A (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410349422.XA Pending CN104162675A (en) | 2014-07-22 | 2014-07-22 | Method for manufacturing iron-based diamond cutter teeth |
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| CN (1) | CN104162675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778040A (en) * | 2019-04-04 | 2019-05-21 | 吉林大学 | A kind of graphene enhancing prealloy base diamond composite material and preparation method |
| CN114274061A (en) * | 2022-01-01 | 2022-04-05 | 苏州赛尔科技有限公司 | Iron-based slotted metal cutting knife and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192259A1 (en) * | 2000-12-04 | 2003-10-16 | D'evelyn Mark Philip | Abrasive diamond composite and method of making thereof |
| CN101280683A (en) * | 2008-05-27 | 2008-10-08 | 中南大学 | Coal excavating mining pick inlaid with diamond and manufacturing process thereof |
| WO2010005891A2 (en) * | 2008-07-09 | 2010-01-14 | Baker Hughes Incorporated | Infiltrated, machined carbide drill bit body |
| CN101961784A (en) * | 2010-09-21 | 2011-02-02 | 博深工具股份有限公司 | Powder metallurgy material and method for manufacturing diamond bit |
| CN102133640A (en) * | 2011-04-08 | 2011-07-27 | 河北小蜜蜂工具集团有限公司 | Method for preparing diamond tool bit from iron-based pre-alloyed powder |
-
2014
- 2014-07-22 CN CN201410349422.XA patent/CN104162675A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192259A1 (en) * | 2000-12-04 | 2003-10-16 | D'evelyn Mark Philip | Abrasive diamond composite and method of making thereof |
| CN101280683A (en) * | 2008-05-27 | 2008-10-08 | 中南大学 | Coal excavating mining pick inlaid with diamond and manufacturing process thereof |
| WO2010005891A2 (en) * | 2008-07-09 | 2010-01-14 | Baker Hughes Incorporated | Infiltrated, machined carbide drill bit body |
| CN101961784A (en) * | 2010-09-21 | 2011-02-02 | 博深工具股份有限公司 | Powder metallurgy material and method for manufacturing diamond bit |
| CN102133640A (en) * | 2011-04-08 | 2011-07-27 | 河北小蜜蜂工具集团有限公司 | Method for preparing diamond tool bit from iron-based pre-alloyed powder |
Non-Patent Citations (1)
| Title |
|---|
| 张哲等: "石材切割锯片低钴结合剂配方的研制", 《金刚石与磨料磨具工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778040A (en) * | 2019-04-04 | 2019-05-21 | 吉林大学 | A kind of graphene enhancing prealloy base diamond composite material and preparation method |
| CN114274061A (en) * | 2022-01-01 | 2022-04-05 | 苏州赛尔科技有限公司 | Iron-based slotted metal cutting knife and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141126 |
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| RJ01 | Rejection of invention patent application after publication |