EP0270836B1 - Procédé d'étirage de fils - Google Patents

Procédé d'étirage de fils Download PDF

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Publication number
EP0270836B1
EP0270836B1 EP87116218A EP87116218A EP0270836B1 EP 0270836 B1 EP0270836 B1 EP 0270836B1 EP 87116218 A EP87116218 A EP 87116218A EP 87116218 A EP87116218 A EP 87116218A EP 0270836 B1 EP0270836 B1 EP 0270836B1
Authority
EP
European Patent Office
Prior art keywords
dispersion
wire rod
wire
titanium compound
phosphate
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 - Lifetime
Application number
EP87116218A
Other languages
German (de)
English (en)
Other versions
EP0270836A1 (fr
Inventor
Eiichi Nishi
Fumio Aso
Hiroyoshi Nakagawa
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.)
Nihon Parkerizing Co Ltd
Original Assignee
Nihon Parkerizing Co Ltd
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 Nihon Parkerizing Co Ltd filed Critical Nihon Parkerizing Co Ltd
Priority to AT87116218T priority Critical patent/ATE65267T1/de
Publication of EP0270836A1 publication Critical patent/EP0270836A1/fr
Application granted granted Critical
Publication of EP0270836B1 publication Critical patent/EP0270836B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • 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
    • C23C22/60—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 alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon

Definitions

  • the invention relates to a method for drawing soaped iron or steel wire rod after chemical pretreatment.
  • the usual pretreatment procedures for wire rod made of iron or steel before wire drawing are carried out by rust removal, such as blasting, polishing, pickling etc.
  • the process sequence often involves degreasing, rinsing water, pickling in dilute hydrochloric or sulfuric acid, rinsing water, neutralizing, anti-corrosion treatment, e.g. with anti-corrosion oil, and drying application.
  • the wire rod is then soaped and drawn.
  • the drawn wire and coated with the temporary anti-corrosion agent reaches the consumer, who uses it to produce sewing needles, springs, bicycle spokes, etc. If necessary, the articles are cleaned, rinsed with water, pickled and plated.
  • neutralization / corrosion protection treatment dispersions are often used, which are obtained by stirring burnt lime and acicular soap in water and are used at 50 to 80 ° C.
  • liquid lubricants are metal soap solutions and aqueous solutions of sodium phosphate, borax and titanium dioxide. Such metal soap solutions tend to increase viscosity during use, so that it often does too insufficient formation of the lubricating film, incomplete drying of the film and thus an insufficient lubricating effect.
  • Powdery lubricants have become established not least for the reasons mentioned above. They are usually formulated from a wide variety of metal soaps as a base and inorganic substances such as lime, talc, etc., with the possible addition of sulfur, molybdenum disulfide, etc. These powdered lubricants are usually filled into a box located in front of the drawing tool and taken up by the iron or steel wire rod passed through to form a film of lubricant.
  • the object of the invention is to provide a method for drawing wire rod made of iron or steel, which does not have the known, in particular the aforementioned disadvantages, and leads to products with a completely smooth surface, without the effect of the lubricant or the drawing performance as such being impaired .
  • the object is achieved by designing the method of the type mentioned at the outset in accordance with the invention in such a way that a film of a dispersion containing a colloidal titanium compound is applied to the wire rod before soaping and dried.
  • a film of a dispersion which contains colloidal titanium compound and alkali metal phosphate is particularly advantageous to apply a film of a dispersion which contains colloidal titanium compound and alkali metal phosphate.
  • This is a dispersion which is customary for the activation of metal surfaces before the production of phosphate coatings and is described in more detail, for example, in US Pat. Nos. 2,310,239 and 2,874,081.
  • the activating agent is essentially responsible for the formation of uniform, fine-grained and dense phosphate coatings.
  • the mode of action of the "activating agent" within the process according to the invention is not known. However, it must be considered certain that the film formed from the dispersion of colloidal titanium compound binds the soap applied subsequently particularly firmly. This follows from the comparatively low drawing force required and the achievable surface quality of the drawn wire.
  • the titanium component can be introduced, for example, as titanium hydroxide, titanium dioxide, titanyl sulfate, potassium oxalato titanate or potassium fluorotitanate.
  • the dispersion can also contain perborate, carbonate and water-soluble anionic organic compounds.
  • the phosphate is preferably introduced as polyphosphate, since it disperses the titanium component in a particularly stable manner. Metaphosphates and pyrophosphates are similarly suitable.
  • the phosphates are expediently introduced as the sodium, potassium or ammonium salt. In this case too, the other additives mentioned above are advantageous.
  • a further advantageous embodiment of the invention therefore provides to apply a dispersion which contains 0.001 to 0.5 g / l of colloidal titanium compound (calc. As Ti) and 0.1 to 50 g / l, preferably 2 to 30 g / l, of alkali metal phosphate .
  • the permissible pH of the dispersion is not as narrow as in the case of activation before phosphating.
  • a pH range of 5.7 to 9.5 is generally permissible.
  • a dispersion is used whose pH is in the range from 8 to 9.5.
  • the temperature of the dispersion should be 50 to 80 ° C so that the wire rod absorbs the heat required for drying.
  • the duration of treatment is 2 to 3 minutes. sufficient.
  • the invention has a further advantageous embodiment if the wire rod is phosphated before the dispersion is applied.
  • the generation of a phosphate coating consisting essentially of zinc phosphate is particularly expedient. In this way, an additional improvement in the adhesion of the soap subsequently applied can be achieved.
  • any metal soap customary for drawing purposes and any type of application can be used.
  • the use of powdered soap is preferred within the process according to the invention.
  • the size of the soap particles is not essential.
  • Calcium stearate is generally used.
  • So-called lime soaps which are obtained by mixing burnt lime and acicular soap in an aqueous medium, are less expedient, since this means that with the The method achieved according to the invention can at least partially be lost.
  • lime soaps can be mixed in small quantities with other soaps in order to reduce the overall costs. The admixture of other known and customary additives is permitted.
  • Advantages of the method according to the invention are that it can be carried out in a simple manner and with high efficiency and leads to drawn wire of high surface quality (smoothness, appearance). That e.g. end product obtained by plating, such as sewing needles, bicycle spokes, etc., meets even the strictest requirements.
  • the method according to the invention also has an advantageous effect in the event that rust has formed as a result of an excessively long storage period and a new treatment is required. Compared to the conventional methods using lime soaps, the existing, generally thin layer can be removed much more easily.
  • a coil made of steel wire of the quality SWRS 82 A with a diameter of 8 mm was treated according to the inventive method of Example 1, but the wire was coated with a zinc phosphate coating for 10 minutes before the titanium compound-containing dispersion was dried. long immersion in a phosphating solution. Then in seven steps up to a final diameter of 3.7 mm with a final drawing speed of 140 m / min. drawn. The evaluation was carried out as indicated in Example 1. Surface smoothness and gloss were better than when using conventional methods.
  • Wire coil of the steel grade SWRS 82 A with a wire diameter of 2.6 mm was treated according to the inventive procedure of Example 1 and in nine stages at a final drawing speed of 400 m / min. drawn to a final diameter of 1 mm. Surface smoothness and gloss were better than when using conventional methods.
  • the wire was passed through a box filled with powdered soap, which mainly consisted of calcium stearate, and in six stages at a final speed of 100 m / min. drawn to 1.64 mm in diameter.
  • Example 1 The evaluation was carried out as indicated in Example 1.
  • the wires were superior in surface smoothness and luster to those drawn by conventional methods.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Insulated Conductors (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Materials For Medical Uses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (5)

  1. Procédé pour le tréfilage de fil machine laminé savonné en fer ou acier, après un prétraitement chimique, caractérisé en ce que, avant le savonnage, on applique sur le fil machine laminé une pellicule d'une dispersion contenant un composé colloïdal à base de titane, puis on la sèche.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on applique une pellicule d'une dispersion qui contient un composé colloïdal à base de titane et un phosphate alcalin.
  3. Procédé selon la revendication 2, caractérisé en ce que l'on applique une dispersion qui contient de 0,001 à 0,5 g/l de composé colloïdal à base de titane (exprimé en Ti) et de 0,1 à 50 g/l, de préférence de 2 à 30 g/l de phosphate alcalin.
  4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce que l'on applique une dispersion dont le pH est dans la plage de 8 à 9,5.
  5. Procédé selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que, avant l'application de la dispersion, on soumet le fil machine laminé à une phosphatation.
EP87116218A 1986-11-10 1987-11-04 Procédé d'étirage de fils Expired - Lifetime EP0270836B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116218T ATE65267T1 (de) 1986-11-10 1987-11-04 Verfahren zum ziehen von draht.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26565686 1986-11-10
JP265656/86 1986-11-10

Publications (2)

Publication Number Publication Date
EP0270836A1 EP0270836A1 (fr) 1988-06-15
EP0270836B1 true EP0270836B1 (fr) 1991-07-17

Family

ID=17420163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116218A Expired - Lifetime EP0270836B1 (fr) 1986-11-10 1987-11-04 Procédé d'étirage de fils

Country Status (7)

Country Link
US (1) US4808245A (fr)
EP (1) EP0270836B1 (fr)
JP (1) JP2510629B2 (fr)
AT (1) ATE65267T1 (fr)
CA (1) CA1313994C (fr)
DE (2) DE3771459D1 (fr)
ES (1) ES2023171B3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1203641B (it) * 1988-05-12 1989-02-15 Lubrimetal Spa Procedimento per la preparazione continua di lubrificanti in polvere da impiegare nella trafilatura a secco di fili metallici e/o nella laminazione a freddo dei metalli-impianto per la sua esecuzione e i lubrificanti cosi' ottenuti
JP2583285B2 (ja) * 1988-07-07 1997-02-19 日本電装株式会社 金属材料の冷間塑性加工用水系潤滑処理液および処理方法
JPH0747756B2 (ja) * 1989-08-09 1995-05-24 日本電装株式会社 金属の冷間塑性加工用水系潤滑処理液
JPH0433998A (ja) * 1990-05-30 1992-02-05 Nippon Parkerizing Co Ltd 鋼管の潤滑処理法
US5308654A (en) * 1990-05-30 1994-05-03 Henkel Corporation Method for lubricating steel tubing prior to cold drawing
DE4138218C2 (de) * 1991-11-21 1994-08-04 Doerken Ewald Ag Verwendung von Nachtauchmitteln für die Nachbehandlung von chromatierten oder passivierten Verzinkungsschichten
DE4336220A1 (de) * 1993-10-23 1995-04-27 August Neuhoff Fa Verfahren und Vorrichtung zum Aufbringen einer Schmierstoffträgerschicht insbesondere auf ein im Ziehverfahren zu verformendes Drahtmaterial
US6890345B2 (en) * 2001-09-27 2005-05-10 Tyco Healthcare Group Lp Pretreatment for lubricated surgical needles
JP5023883B2 (ja) * 2007-08-23 2012-09-12 住友金属工業株式会社 表面性状に優れたコイルまたはバーの製造方法
CN102280976B (zh) * 2010-06-10 2013-01-23 怀特(中国)驱动产品有限公司 定子的加工工艺方法
DE102015014304A1 (de) * 2015-11-05 2017-05-11 Retomax Ag Behandlungsvorrichtung zum Beizen und Phosphatieren von Draht oder Drahtteilen und Behandlungsverfahren sowie Behandlungsanlage zum Beschichten des Drahts oder der Drahtteile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6968C (de) * A. B. BROWN und W. PH. BROWN in Worcester Massachusetts (N. A) Neuerungen in der Drahtfabrikation
IT429344A (fr) * 1941-10-25 1900-01-01
US2490062A (en) * 1949-01-21 1949-12-06 Westinghouse Electric Corp Cleaning and activating compositions and use thereof in producing protective phosphate coatings on metal surfaces
DE2031358C3 (de) * 1970-06-25 1981-10-15 Gerhard Collardin GmbH, 5000 Köln Verfahren zur Erzeugung von Schutzschichten auf Aluminium, Eisen und Zink mittels saurer, komplexe Fluoride enthaltender, Lösungen
DE2736874A1 (de) * 1977-08-16 1979-03-01 Metallgesellschaft Ag Verfahren zur erleichterung der kaltumformung von metallen
JPS6022067B2 (ja) * 1982-09-30 1985-05-30 日本パ−カライジング株式会社 金属表面の皮膜形成方法

Also Published As

Publication number Publication date
ES2023171B3 (es) 1992-01-01
EP0270836A1 (fr) 1988-06-15
CA1313994C (fr) 1993-03-02
ATE65267T1 (de) 1991-08-15
US4808245A (en) 1989-02-28
DE3771459D1 (de) 1991-08-22
JP2510629B2 (ja) 1996-06-26
DE3737368A1 (de) 1988-05-11
JPS63238921A (ja) 1988-10-05

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