DE974004C - Process to improve the non-cutting deformation of workpieces made of iron and zinc - Google Patents

Process to improve the non-cutting deformation of workpieces made of iron and zinc

Info

Publication number
DE974004C
DE974004C DEM2906D DEM0002906D DE974004C DE 974004 C DE974004 C DE 974004C DE M2906 D DEM2906 D DE M2906D DE M0002906 D DEM0002906 D DE M0002906D DE 974004 C DE974004 C DE 974004C
Authority
DE
Germany
Prior art keywords
zinc
iron
workpieces
improve
cutting deformation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEM2906D
Other languages
German (de)
Inventor
Heinrich Kopp
Wilhelm Dr-Ing Overath
Gerhard Dr-Ing Roesner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DEM2906D priority Critical patent/DE974004C/en
Application granted granted Critical
Publication of DE974004C publication Critical patent/DE974004C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

Verfahren zur Verbesserung der spanlosen Verformung von Werkstücken aus Eisen und Zink Die Erfindung betrifft ein Verfahren zur Verbesserung der spanlosen Formgebung von Eisen und Zink und besteht darin, daß den zu verformenden Werkstücken zunächst durch Behandlung mit Phosphatierungsbädern, welche Oxydationsmittel enthalten, eine kapillaraktive, saugfähige Phosphatschicht verliehen wird. Im Anschluß hieran soll dann das mit einer derartigen Schicht versehene Metall unter Zusatz von Gleitmitteln, wie Ölen, Fetten oder Seifen, der Kaltverformung, z. B. durch Ziehen, unterworfen werden. In Ausführung des Verfahrens wird so vorgegangen, daß die zu verformenden Werkstücke einer Phosphatierung unterworfen werden ähnlich der, wie man sie beim Rostschutzverfahren anwendet. Hierbei wird ein z. B. Mangan-, Zink- oder Eisenphosphat enthaltendes Bad auf die geeignete Temperatur dicht unter den Siedepunkt gebracht und die Gegenstände hierin so lange eingetaucht, bis sich die kapillaraktive saugfähige Phosphatschicht auf den Oberflächen in der gewünschten Stärke gebildet hat. Eine Besonderheit des erfindungsgemäßen Verfahrens besteht darin, dem Phosphatbad Zusätze an Oxydationsmitteln, insbesondere an Nitraten, zu machen.Process for improving the non-cutting deformation of workpieces from iron and zinc The invention relates to a method for improving the non-cutting Shaping iron and zinc and consists in that the workpieces to be deformed initially by treatment with phosphating baths which contain oxidizing agents, a capillary-active, absorbent phosphate layer is imparted. Following this should then the metal provided with such a layer with the addition of lubricants, such as oils, fats or soaps, cold forming, e.g. B. by pulling, subjected will. In the execution of the method, the procedure is that the to be deformed Workpieces are subjected to phosphating similar to how they are subjected to Applying anti-rust process. Here a z. B. manganese, zinc or iron phosphate containing bath brought to the appropriate temperature just below the boiling point and immersed the objects therein until the capillary-active absorbent Phosphate layer has formed on the surfaces in the desired thickness. One A special feature of the method according to the invention is that additives are added to the phosphate bath to do with oxidizing agents, especially with nitrates.

Es wurde gefunden, daß die Ausbildung einer für die Erfindung geeigneten Oberflächenschicht gerade mit Hilfe derartiger Verfahren besonders günstig für die spätere Kaltverformung ist. Die so behandelten Gegenstände werden dann gewaschen und getrocknet und schließlich, z. B. durch Ziehen, kalt verformt, wobei die üblichen Gleitmittel außerdem anzuwenden sind.It has been found that the formation of a suitable for the invention Surface layer, especially with the help of such methods, is particularly beneficial for the later cold deformation is. The articles so treated are then washed and dried and finally, e.g. B. by drawing, cold formed, the usual lubricants must also be used.

Man hat zwar schon vorgeschlagen, Metalle, die z. B. mit einer Oxydhaut versehen sind, kalt zu verformen. Hierbei war jedoch die Anschauung maßgebend, daß man die an der Oberfläche des behandelten `Verkstückes eingewachsenen Kristalle unmittelbar als Gleitmittel benutzt. Neu ist dagegen der Gedanke, die Schicht durch die Wahl des obengenannten Mittels so auszubilden, daß sie in kürzester Zeit und kapillaraktiv entsteht, so daß die in Kombination hiermit verwendeten üblichen Ziehmittel sich darin gleichsam verankern.It has already been proposed that metals such. B. with an oxide skin are provided to be cold deformed. Here, however, the opinion was decisive that the crystals that have grown in on the surface of the treated 'block' used directly as a lubricant. What is new, however, is the idea of going through the shift to train the choice of the above agent so that they can be in the shortest possible time and capillary-active arises, so that the usual drawing means used in combination herewith anchor oneself in it, as it were.

Ein besonderer Vorteil des Verfahrens nach der Erfindung besteht weiterhin darin, daß sogar niedrig legierte Stähle, wie sie gewöhnlich zur Herstellung von Hülsen und Stahlflaschen verwendet werden, sich gut kalt verarbeiten, d. h. tiefziehen lassen, wenn sie nach dem Verfahren der Erfindung behandelt sind.There is still a particular advantage of the method according to the invention in that even low-alloy steels, such as those commonly used in the manufacture of Sleeves and steel bottles are used, work well cold, d. H. deep drawing when treated according to the method of the invention.

Im folgenden sei ein Beispiel für die Ausführung des Verfahrens beschrieben.An example of the implementation of the method is described below.

Beispiel Als Phosphatierungsbad dient eine Lösung folgender Zusammensetzung: Zn .............................. 19 g/1 13101 ............................ 24g/1 NO 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25g/1 Behandlungsdauer 5 Minuten bei einer Badtemperatur von 95°C. Phosphatiert wurde ein Stahlrohr mit o,5 % Cr und 2,o °/o Ni. Dieses wurde dann geölt und kalt gezogen.Example A solution of the following composition is used as a phosphating bath: Zn .............................. 19 g / 1 13101 ............................ 24g / 1 NO 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25g / 1 Treatment time 5 minutes at a bath temperature of 95 ° C. A steel pipe was phosphated with 0.5 % Cr and 2.0% Ni. This was then oiled and cold-drawn.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verbesserung der spanlosen Verformung von Werkstücken aus Eisen und Zink, dadurch gekennzeichnet, daß auf diesen Werkstücken zunächst eine kapillaraktive saugfähige Phosphatschicht mit Hilfe von Phosphatierungsbädern, welche Oxydationsmittel, insbesondere Nitrate, enthalten, aufgebracht wird und daß die so behandelten Werkstücke dann unter Zusatz der üblichen Gleitmittel, wie Öle und/oder Fette, verformt werden. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 3 519, 310 756, 448 °o9, 533 182, 639 447, 643 869, 673 405 französische Patentschriften Nr. 724 422, 770 798, 800 720; britische Patentschriften Nr. 386 739, 427 921, 455 077; USA.-Patentschriften Nr. 1428 o87, I 91I 726, 1949 090, 2 077 450, 2 116 954. PATENT CLAIM: A method for improving the non-cutting deformation of workpieces made of iron and zinc, characterized in that a capillary-active, absorbent phosphate layer is first applied to these workpieces with the aid of phosphating baths which contain oxidizing agents, in particular nitrates, and that the workpieces treated in this way are then underneath Addition of the usual lubricants, such as oils and / or fats, can be deformed. Documents considered: German Patent Nos. 3,519, 310,756, 448 ° 09, 533 182, 639 447, 643 869, 673 405 French Patent Nos. 724 422, 770 798, 800 720; British Patent Nos. 386 739, 427 921, 455 077; U.S. Patents Nos. 1428 o87, I 91I 726, 1949 090, 2 077 450, 2 116 954.
DEM2906D 1937-06-02 1937-06-02 Process to improve the non-cutting deformation of workpieces made of iron and zinc Expired DE974004C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM2906D DE974004C (en) 1937-06-02 1937-06-02 Process to improve the non-cutting deformation of workpieces made of iron and zinc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM2906D DE974004C (en) 1937-06-02 1937-06-02 Process to improve the non-cutting deformation of workpieces made of iron and zinc

Publications (1)

Publication Number Publication Date
DE974004C true DE974004C (en) 1960-08-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292050A1 (en) * 1974-11-20 1976-06-18 Amchem Prod SOLUTION AND PROCESS FOR COVERING ZINC PHOSPHATE THE SURFACE OF A FERROUS METAL BEFORE COLD DEFORMATION

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519C (en) *
DE310756C (en) *
US1428087A (en) * 1921-06-22 1922-09-05 James H Gravell Rust-resisting steel and method of producing same
DE448009C (en) * 1926-06-01 1927-08-05 Wilhelm Schmidding Process for producing a rust-proof layer on iron and steel
DE533182C (en) * 1929-11-27 1931-09-09 Hugo Vom Bruck Process for machining rolled material to be cold drawn
FR724422A (en) * 1931-07-07 1932-04-27 Metal Finishinc Res Corp Process for forming phosphate coatings on metals
US1949090A (en) * 1930-11-17 1934-02-27 Metal Finishing Res Corp Method and material for coating and cleaning metal
FR770798A (en) * 1933-03-27 1934-09-20 Metal Finishing Res Corp Process for obtaining protective layers of phosphate
FR800720A (en) * 1936-01-15 1936-07-17 Process for the pretreatment of steel or iron workpieces
GB455077A (en) * 1936-03-25 1936-10-13 Fritz Singer Method of mechanically working metal articles
DE639447C (en) * 1933-12-11 1936-12-05 James Harvey Gravell Process for the production of phosphate-containing coatings on metals
DE643869C (en) * 1930-09-24 1937-04-19 Mij Tot Exploitatie Van De Par Process for the treatment of magnesium, zinc or iron surfaces
US2077450A (en) * 1935-01-08 1937-04-20 Alrose Chemical Company Method and composition for coating iron and steel articles
US2116954A (en) * 1936-05-14 1938-05-10 Tubus A G Mechanically working metal article
DE673405C (en) * 1934-06-10 1939-03-22 Fritz Singer Dr Process for the pretreatment of iron and steel workpieces for non-cutting shaping, e.g. pulling, stretching and rolling

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519C (en) *
DE310756C (en) *
US1428087A (en) * 1921-06-22 1922-09-05 James H Gravell Rust-resisting steel and method of producing same
DE448009C (en) * 1926-06-01 1927-08-05 Wilhelm Schmidding Process for producing a rust-proof layer on iron and steel
DE533182C (en) * 1929-11-27 1931-09-09 Hugo Vom Bruck Process for machining rolled material to be cold drawn
DE643869C (en) * 1930-09-24 1937-04-19 Mij Tot Exploitatie Van De Par Process for the treatment of magnesium, zinc or iron surfaces
US1949090A (en) * 1930-11-17 1934-02-27 Metal Finishing Res Corp Method and material for coating and cleaning metal
US1911726A (en) * 1931-07-07 1933-05-30 Metal Finishing Res Corp Production of phosphate coatings on metals
GB386739A (en) * 1931-07-07 1933-01-26 Metal Finishing Res Corp Production of phosphate coatings on metals
FR724422A (en) * 1931-07-07 1932-04-27 Metal Finishinc Res Corp Process for forming phosphate coatings on metals
FR770798A (en) * 1933-03-27 1934-09-20 Metal Finishing Res Corp Process for obtaining protective layers of phosphate
GB427921A (en) * 1933-03-27 1935-05-02 Metal Finishing Res Corp Improvements in and relating to the production of phosphate coatings on iron or steel
DE639447C (en) * 1933-12-11 1936-12-05 James Harvey Gravell Process for the production of phosphate-containing coatings on metals
DE673405C (en) * 1934-06-10 1939-03-22 Fritz Singer Dr Process for the pretreatment of iron and steel workpieces for non-cutting shaping, e.g. pulling, stretching and rolling
US2077450A (en) * 1935-01-08 1937-04-20 Alrose Chemical Company Method and composition for coating iron and steel articles
FR800720A (en) * 1936-01-15 1936-07-17 Process for the pretreatment of steel or iron workpieces
GB455077A (en) * 1936-03-25 1936-10-13 Fritz Singer Method of mechanically working metal articles
US2116954A (en) * 1936-05-14 1938-05-10 Tubus A G Mechanically working metal article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292050A1 (en) * 1974-11-20 1976-06-18 Amchem Prod SOLUTION AND PROCESS FOR COVERING ZINC PHOSPHATE THE SURFACE OF A FERROUS METAL BEFORE COLD DEFORMATION

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