SE448526B - METHOD OF DRAWING METALLIC GOODS IN ONE OR MULTIPLE STEPS - Google Patents

METHOD OF DRAWING METALLIC GOODS IN ONE OR MULTIPLE STEPS

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Publication number
SE448526B
SE448526B SE8204098A SE8204098A SE448526B SE 448526 B SE448526 B SE 448526B SE 8204098 A SE8204098 A SE 8204098A SE 8204098 A SE8204098 A SE 8204098A SE 448526 B SE448526 B SE 448526B
Authority
SE
Sweden
Prior art keywords
lubricant
liquid
pressure
film
pressure chamber
Prior art date
Application number
SE8204098A
Other languages
Swedish (sv)
Other versions
SE8204098L (en
SE8204098D0 (en
Inventor
H Weinhold
D Rauschenbach
B Kurze
J Eickemeyer
H-R Vogel
H Wellert
A Uhlig
L Grefe
K Kramer
Original Assignee
Mai Edelstahl
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 Mai Edelstahl filed Critical Mai Edelstahl
Publication of SE8204098D0 publication Critical patent/SE8204098D0/en
Publication of SE8204098L publication Critical patent/SE8204098L/en
Publication of SE448526B publication Critical patent/SE448526B/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/22—Carboxylic acids or their salts
    • C10M105/24—Carboxylic acids or their salts having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
    • 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
    • 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
    • B21C9/02—Selection of compositions therefor
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/241—Manufacturing joint-less pipes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/242—Hot working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/243—Cold working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/245—Soft metals, e.g. aluminum
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/246—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/247—Stainless steel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants
    • C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)
  • Lubricants (AREA)

Description

448 526 2 flrbetstärningen. Som smörjmedei användes därvid fasta, pastaformiga- och fiytande ämnen, varvid före anbringandet av smörjmediet på tråden man måste fiera gånger aistra ett bärarskikt av kemiska föreningar eiier metaiier medeist en omständïig ytbehandiing, t.ex. kaikning, fosfatering, oxaiatering, boraxering, förkoppring e1ier_förtenning. 448 526 2 bet work cube. The lubricants used are solid, pasty and liquid substances, whereby before the application of the lubricant to the wire one has to apply several times a carrier layer of chemical compounds or metals with a cumbersome surface treatment, e.g. kaikning, phosphatation, oxaiationation, boraxation, copper plating e1ier_förtenning.

Som fasta smörjmedei användes iämpiigen stearat, t.ex. kaiciumstearat och zinkstearat, viika bearbetats i puiverform därigenom,att tråden « före inträdet i tryckdysan Tedes genom en tärning, som innehåiler smörjmedeïspuivret. På grund av den mer eiier mindre iösa vidhäft- ningen av det så på trådens yta påförda smörjmedeïspuivret är det icke möjligt att förverkiiga det för svårartade omformningsbetingeiser (högiegerade ämnen, hög draghastighet, hög omformningsgrad), höga smörjmedeistrycket i tryckkammaren, eftersom smörjmedeispuivret avdra- ges och på så sätt icke i tiiiräckiig grad tätar ringspaiten meiian tråden och dysborrningen.Stearates are suitably used as solid lubricants, e.g. calcium stearate and zinc stearate, which have been processed into powder form by the wire «before entering the pressure nozzle Tedes through a cube containing the lubricant powder. Due to the more or less sticky adhesion of the lubricant powder thus applied to the surface of the wire, it is not possible to realize the too difficult deformation conditions (high alloying substances, high drawing speed, high degree of transformation), high lubricant pressure in the pressure chamber, because lubricating and thus not to a sufficient degree seals the ring pait with the wire and the nozzle bore.

Sålunda biir formningen av mycket hårda ämnen resp. ökningen av draghastigheten och formningsgraden begränsade. Framför a11t upp- träder dessa probiem, när man skaii dra tråd med iiten diameter på mindre än 1 mm. Dessa gränser kan icke överskridas ens under använd- ning i pastaformiga eiier fiytande smörjmedeisfiimer av t.ex. vax, fiytande tvål, oija eiler grafit/MoS-biandningar, eftersom den dyna- miska viskositeten hos dessa smörjmedei är mindre än hos fasta smörj- medei. Ändamåiet med uppfinningen är att åstadkomma förutsättningar för en ökning av produktiviteten vid dragförfarandet, framför ailt med avseende på ökningen av formningsgraden och draghastigheten, i synner- het vid formning av högiegerade ämnen. Samtidigt skaii kostnaderna för förbehandiing av formgodset minskas i väsentiig grad. Ändamåiet med uppfinningen är såiunda att utveckïa ett förfa- rande för dragning i ett eiier flera steg av metaiiiskt formgods medeist tryckdysor, vid viiket förfarande med de enkiaste åtgärder och under största möjiiga undvikande av en smörjmedeisbärare åstadkommas ett för tiiiförsäkran av hydrodynamiska smörjningsförhåiianden tiii- 1 räckiigt tryck i tryckdysans tryckkammare och detta även vid dragning i a 448 526 av högiegerade materiai, vid höga draghastigheter, vid kraftiga form- ningsgrader och vid dimensioner mindre än en diameter på 1 mm.Thus, the formation of very hard substances resp. the increase in drawing speed and degree of shaping are limited. In front of the a11t, these probes occur when a wire with a diameter of less than 1 mm is drawn. These limits cannot be exceeded even during use in pasty or liquid lubricating films of e.g. waxes, liquid soaps, or other graphite / MoS mixtures, since the dynamic viscosity of these lubricants is less than that of solid lubricants. The object of the invention is to provide conditions for an increase in the productivity of the drawing process, above all with respect to the increase of the degree of forming and the drawing speed, in particular when forming highly alloyed substances. At the same time, the costs of treating the molded goods are significantly reduced. The object of the invention is thus to develop a method for drawing in one or more stages of metallic moldings with pressure nozzles, in the simplest procedure with the simplest measures and with the greatest possible avoidance of a lubricating medium carrier, a pressure in the pressure chamber of the pressure nozzle and this also when drawing in 448 526 of high-alloy materials, at high drawing speeds, at high degrees of forming and at dimensions less than a diameter of 1 mm.

Detta probiem har eniigt uppfinningen iösts därigenom, att på formningsgodset för uppnåendet av en vidhäftande, homogen fiïm av fast smörjmedei på i och för sig känt sätt påföres och torkas ett fiytande smörjmedei, som i en vätskeformig substans innehåiier ett dispergerat eiier iöst fast smörjmedei och att tiii detta formningsgods föres en eiier fiera efter varandra anbragta tryckdysor, viïkas inïoppsmun- stycken har en borrningsdiameter, som är bïott 0,01 - 0,06 mm större än det iniöpande formningsgodsets diameter, varjämte storleken på smörjmedeistrycket i tryckkammaren instäiies medeïst konsistensen hos och/eiier tjockieken på den fasta smörjmedeisfiimen.This problem is achieved according to the invention in that a liquid lubricant is applied to and dried on the forming material in order to obtain an adhesive, homogeneous film of solid lubricant in a manner known per se, which in a liquid substance contains a dispersed and evenly dispersed liquid. A number of pressure nozzles arranged one after the other are conveyed to this molding, the inlet nozzles having a bore diameter which is 0.01 to 0.06 mm larger than the diameter of the injecting molding, and the size of the lubricant pressure in the pressure chamber and the consistency of the eiier tjockieken on the solid lubricating medium.

Det fïytande smörjmediet kan eniigt uppfinningen med fördei påföras ett smörjmedeisbärarfritt formgods. Eniigt iämpiiga utförings- former av uppfinningen består smörjmediet resp. vätskan av ett orga- niskt ïösningsmedei och ett metaiistearat, företrädesvis av triklor- etyien, och kaïciumstearat med förhöjd metaiioxidandei och det vid ut- ioppet från arbetsdrägtärningen genom vätskan dragna formgodset torkas därefter. Eniigt ytteriigare en ïämpiig utföringsform av uppfinningen begränsas smörjmedeistrycket i tryckkammaren i riktning uppåt så, att med undantag för som restfiim på formgodset vidhäftande smörjmedei kommer minsta möjiiga mängd smörjmedei att av dragoijan i arbetsdrag- tärningen att dras in i vätskan. Begränsningen av smörjmedeistrycket kan därvid åstadkommas medeist en med tryckkammaren förbunden, in- stäiibar övertrycksventii. Lämpiigen påverkas tryckuppbyggnaden i tryckkammaren med konsistensen och/eiier tjockieken hos fiimen av fast smörjmedei. Härigenom kan tjockieken hos fiimen av fast smörjmedeï styras medoist koncentrationen av fast styrmedeï i vätskan, temperatu- ren hos det fiytande smörjmediet eïier en avstrykare. Eniigt uppfin- ningen kan man vidare förfara så, att man använder tryckdysor, viikas in1opP%dysor uppvisar biott med 0,01 - 0,06 mm större borrningsdiame- ter än diametern hos den iniöpande tråden.According to the invention, the liquid lubricant can advantageously be applied to a lubricant carrier-free mold. Accordingly suitable embodiments of the invention consist of the lubricating medium resp. the liquid of an organic solvent and a methyl stearate, preferably of the trichlorethylene, and calcium stearate with elevated methyl dioxide and the molded material drawn through the liquid at the outlet of the working die cube is then dried. According to yet another suitable embodiment of the invention, the lubricant pressure in the pressure chamber is limited in the upward direction so that, with the exception of a lubricant adhering to the molded material as a residual film, the least possible amount of lubricant will be drawn into the liquid by the drag in the working die. The limitation of the lubricant pressure can then be achieved by means of an instable overpressure valve connected to the pressure chamber. Suitably, the pressure build-up in the pressure chamber is affected by the consistency and / or thickness of the solid lubricant film. Hereby the thickness of the solid lubricant film can be controlled by the concentration of solid lubricant in the liquid, the temperature of the liquid lubricant or a wiper. According to the invention, it is further possible to proceed in such a way that using pressure nozzles, folded in.

Vid förfarandet eniigt uppfinningen tiiiförsäkras medeist enkiast möjiiga åtgärder och på ett överraskande sätt erhåiïes Fu .\._> CO (fl PJ (fx -v= Utmärkta smörjningsförhållanden i tryckdysorna. I samverkan med funk- tionssättet hos kamrarna möjliggör dessa smörjningsförhållanden i för- hållande till teknikens ståndpunkt en väsentlig ökning av produktivi- teten av dragförfarandet beträffande ökningen av formningsgraden och draghastigheten samt en problemfri formning av höglegerade ämnen och tunna trådar. Dessutom minskas genom det medelst förfarandet enligt uppfinningen elimínerade vanliga bärarskiktet de teknologiska åtgär- derna och materialförbrukning i avsevärd grad. Det är även fördelak- tigt, att man med förfarandet kan uppnå en reningseffekt, när kammaren vid den sista tryckdysan fylles med en vätska, som lämpar sig för ren~ göring av det formade formningsgodset, t.ex. för lösning av restfilmen av smörjämnen.In the process according to the invention, the simplest possible measures are ensured and in a surprising way Fu. \ ._> CO (fl PJ (fx -v = Excellent lubrication conditions in the pressure nozzles). In cooperation with the mode of operation of the chambers, these lubrication conditions enable to the state of the art a significant increase in the productivity of the drawing process with regard to the increase of the degree of forming and the drawing speed as well as a trouble-free forming of high-alloy blanks and thin wires.In addition the ordinary carrier layer eliminated by the method according to the invention reduces the technological measures and material consumption. It is also advantageous that the process can achieve a cleaning effect when the chamber at the last pressure nozzle is filled with a liquid which is suitable for cleaning the shaped molding material, for example for dissolving the residual film of lubricants. .

Tråd av stålmärket X5CrNi18.10 med en utgångsdiameter på 1,6 mm, på vilken utan smörjmedelsbärare påförts en homogen, vidhäf- tande film av fast smörjmedel av kalciumstearat, drages i en flerdrag- ningsmaskin i sex steg medelst tryckdysor till en slutdimension på 0,8 mm. Med de i tryckdysorna anbragta arbetsdragtärningarna förverkligas följande dragserie: 1,26/1,06/0,92/0,85/0,80 mm. De före arbetsdrag- tärningarna i tryckdysorna anbragta inloppsdysorna består av dragtär- ningar, vilkas horrningsdiameter har dimensionerats mellan 0,02 och 0,04 mm större än diametern hos den tråd, som för tillfället löper in i tryckdysan. Den omformade tråden löper omedelbart efter det att den har lämnat arbetsdragtärningarna genom en kammare, vars utlopp är tillslutet med en dragtärning. Borrningsdiametern i denna dragtärning är dimensionerad upp till 0,1 mm större än borrningsdiametern av den före densamma anbragta arbetsdragtärningen.Steel wire X5CrNi18.10 with a starting diameter of 1.6 mm, on which a homogeneous, adhesive film of calcium lubricant solid lubricant is applied without lubricant carrier, is drawn in a six-step multi-drawing machine by means of pressure nozzles to a final dimension of 0, 8 mm. With the working draft cubes arranged in the pressure nozzles, the following draft series is realized: 1.26 / 1.06 / 0.92 / 0.85 / 0.80 mm. The inlet nozzles arranged before the working draw cubes in the pressure nozzles consist of draw cubes, the crank diameter of which has been dimensioned between 0.02 and 0.04 mm larger than the diameter of the wire which currently runs into the pressure nozzle. The reshaped wire runs immediately after leaving the working dice through a chamber, the outlet of which is closed with a drawing dice. The bore diameter of this drag dice is dimensioned up to 0.1 mm larger than the bore diameter of the previously applied work dice.

De efter arbetsdragtärningen anbragta kamrarna matas med en vätska, som består av trikloretylen, i vilken förefinnes kalciumstea- rat med förhöjd metalloxidandel. Därvid kalibreras medelst den vid ut- loppet från kamrarna anordnade dragtärningen tjockleken för vätskefil- men. Tack vare det i tråden förefintliga formningsvärmet avdunstar trikloretylen på nwcket kort tid och man erhåller en torr, homogen, vidhäftande film av fast smörjmedel av kalciumstearat med förhöjda metalloxidandel för den efterföljande formningen. 448 5126 Om det är möjïigt med en formníng över flera steg under ut- nyttjande av restfflmen av smörjmedeï, dríves de motsvarande kamrarna ej med vätskan. Drift av den sista kannmaren eïímíneras aHtíd, när någon s«11öv'_1'medeïsheïäggning på den forrnade tråden ej erfordras För vídarebearbetníngsföfloppen.The chambers arranged after the working dice are fed with a liquid consisting of trichlorethylene, in which there is calcium stearate with an elevated metal oxide content. In this case, the thickness of the liquid film arranged at the outlet of the chambers is calibrated. Thanks to the forming heat present in the wire, trichlorethylene evaporates in a very short time and a dry, homogeneous, adhesive film of solid lubricant of calcium stearate with increased metal oxide content is obtained for the subsequent forming. 448 5126 If it is possible to form over your steps using the residue of lubricant, the corresponding chambers are not driven with the liquid. Operation of the last cannon is eïímíneras aHtíd, when no s «11öv'_1'medeïsheïäggning on the forrnade thread is not required For further processing.

Claims (7)

4 443 523%,4,443,523%, 1. P a t e n tgk r a_v gl. Förfarande för dragning i ett eller flera steg av metallform- ningsgods medelst tryckdysor, k ä n n e t e c k n a t d ä r a v, att på formningsgodset för uppnåendet av en vidhäftande, homogen film av fast smörjmedel på i och för sig känt sätt påföres och torkas ett flytande smörjmedel, som i en vätskeformig substans innehåller ett dispergerat eller löst fast smörjmedel och att till detta formningsgods föres en eller flera efter~varandra anbragta tryckdysor, vilkas inloppsmunstycken har en borrningsdiameter, som är blott 0,01 - 0,06 mm större än det in- löpande formningsgodsets diameter, varjämte storleken på smörjmedels- trycket i tryckkammaren inställes medelst konsistensen hos och/eller tjockleken på den fasta smörjmedelsfilmen.1. P a t e n tgk r a_v gl. Method for drawing in one or more steps of metal forming goods by means of pressure nozzles, characterized in that a liquid lubricant is applied to and dried on the forming goods in order to obtain an adhesive, homogeneous film of solid lubricant in a manner known per se. in a liquid substance contains a dispersed or loose solid lubricant and that one or more successively arranged pressure nozzles are fed to this molding material, the inlet nozzles of which have a bore diameter which is only 0.01 to 0.06 mm larger than that of the inlet molding material. diameter, and the magnitude of the lubricant pressure in the pressure chamber is adjusted by the consistency of and / or the thickness of the solid lubricant film. 2. Förfarande enligt kravet 1, k ä n n e t e c k n a t d ä r a v, att det vätskeformiga smörjmedlet påföres på det smörjmedelsbärarfria formningsgodset.2. A method according to claim 1, characterized in that the liquid lubricant is applied to the lubricant carrier-free molding. 3. Förfarande enligt kravet 1, k ä n n e t e c k n a t d ä r a v, att formningsgodset mellan samtliga eller några av tryckdysorna direkt vid utloppet från arbetsdragtärningen drages genom en vätska, vilken tjänar för kylning eller för kylning och upplösning av smörjmedelsrest- filmen eller för kylning och beläggning med ett smörjmedel, som därefter skall torkas.3. A method according to claim 1, characterized in that the forming material between all or some of the pressure nozzles directly at the outlet of the working draft is drawn through a liquid which serves for cooling or for cooling and dissolving the lubricant residual film or for cooling and coating with a lubricant, which must then be dried. 4. Förfarande enligt kravet 3, k ä n n e t e c k n a t d ä r a v, att det vid utloppet från arbetsdragtärningen genom vätskan dragna form- godset därefter torkas.4. A method according to claim 3, characterized in that the molded goods drawn through the liquid are then dried at the outlet from the working drawing cube. 5. Förfarande enligt kravet 1, k ä n n e t e c k n a t d ä r a v, att smörjmedlet resp. vätskan består av ett organiskt lösningsmedel och ett metallstearat, företrädesvis av trikloretylen och kalciumstearat med förhöjd metalloxidandel.5. A method according to claim 1, characterized in that the lubricant resp. the liquid consists of an organic solvent and a metal stearate, preferably of trichlorethylene and calcium stearate with increased metal oxide content. 6. Förfarande enligt kravet 1 eller 2, k ä n n e t e c k n a t d ä r a v, att smörjmedelstrycket i tryckkammaren begränsas till sin storlek medelst en med tryckkammaren förbunden, inställbar övertrycks- ventil på så sätt, att med undantag för det som restfilm på formnings- godset vidhäftande smörjämnet något Smörjmedel ej införes från tryck- kammaren av dragoljan på arbetsdragtärningen i den efterföljande vätskan. 44s sas6. A method according to claim 1 or 2, characterized in that the lubricant pressure in the pressure chamber is limited to its size by means of an adjustable pressure valve connected to the pressure chamber in such a way that, with the exception of the lubricant adhering as residual film to the molding material. no lubricant is introduced from the pressure chamber of the traction oil onto the working traction cube in the subsequent liquid. 44s sas 7. Förfarande enHgt kravet 1, k ä n n e t e c k n a t d ä r a v, att tjockïeken på den fasta smörjmedeïsfiïmen styres medeï st koncentra- tionen av fasta smörjmedlet 1' den flytande substansen, temperaturen och smörjmed1et eHer mede1 st en avstrykare. ,_ .....--_._.........._...__.____> _7. A method according to claim 1, characterized in that the thickness of the solid lubricant film is controlled by the concentration of the solid lubricant 1 ', the liquid substance, the temperature and the lubricant or by means of a wiper. , _ ..... - _._.........._...__.____> _
SE8204098A 1981-07-09 1982-07-02 METHOD OF DRAWING METALLIC GOODS IN ONE OR MULTIPLE STEPS SE448526B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD81231604A DD210526A3 (en) 1981-07-09 1981-07-09 METHOD FOR ONE OR MULTI-STAGE DRAWING OF METALLIC FORMING GOODS

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SE8204098D0 SE8204098D0 (en) 1982-07-02
SE8204098L SE8204098L (en) 1983-01-10
SE448526B true SE448526B (en) 1987-03-02

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DE (1) DE3223942A1 (en)
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Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558035A (en) * 1947-07-05 1951-06-26 Percy W Bridgman Method and apparatus for cold drawing
DE1284015B (en) * 1964-12-07 1968-11-28 Molykote Gmbh lubricant
DE1602243A1 (en) * 1966-09-28 1970-08-06 British Iron Steel Research Drawing device and method for drawing, in particular for wire drawing
DE2131343A1 (en) * 1971-06-24 1973-01-11 Benteler Werke Ag METHOD AND DEVICE FOR COLD DRAWING METAL PIPES, IN PARTICULAR MADE OF STEEL
IT974269B (en) * 1971-12-27 1974-06-20 Nippon Steel Corp METAL SHEET TREATED WITH LUBRICANT FOR PRESS WORKING
CA1006497A (en) * 1972-08-04 1977-03-08 Walter A. Smigel Dry wire-drawing soap lubricant
DE2333117A1 (en) * 1973-06-29 1975-01-23 Metallgesellschaft Ag PROCESS FOR THE PREPARATION OF STEEL PIECES FOR CHIPLESS COLD FORMING
CH633039A5 (en) * 1977-09-06 1982-11-15 Alusuisse SURFACE LUBRICANTS FOR METAL TAPES.
US4148970A (en) * 1977-12-30 1979-04-10 Diamond Shamrock Corporation Lubricating composition applied over primer coat
DE2920857A1 (en) * 1978-06-12 1979-12-20 Akad Wissenschaften Ddr PROCESS FOR COLD FORMING OF METALLIC MATERIALS
DD153891A1 (en) * 1978-12-21 1982-02-10 Vogel Heinz Ruediger LUBRICANTS FOR THE COLD FORMING OF METALLIC MATERIALS
DD153890A1 (en) * 1978-12-21 1982-02-10 Vogel Heinz Ruediger PROCESS FOR COATING METALLIC MATERIALS WITH LUBRICANTS
DE3048980A1 (en) * 1980-12-24 1982-07-22 VEB Schwermaschinenbau Kombinat "Ernst Thälmann" Magdeburg, DDR 3011 Magdeburg Wet drawing wire - using organic drawing liq. e.g. tri:chloroethylene and or tri:fluoro-acetone and calcium or zinc stearate

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YU146682A (en) 1985-03-20
DD210526A3 (en) 1984-06-13
SE8204098L (en) 1983-01-10
DE3223942A1 (en) 1983-07-14
SE8204098D0 (en) 1982-07-02

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