CN100425365C - Aluminum wiredrawing process - Google Patents
Aluminum wiredrawing process Download PDFInfo
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- CN100425365C CN100425365C CNB2006101555826A CN200610155582A CN100425365C CN 100425365 C CN100425365 C CN 100425365C CN B2006101555826 A CNB2006101555826 A CN B2006101555826A CN 200610155582 A CN200610155582 A CN 200610155582A CN 100425365 C CN100425365 C CN 100425365C
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Abstract
A technology for drawing aluminum wire without pollution to the surface of drawn aluminum wire features that a special lubricating oil is used, the number of the oil supply tubes and oil returning tubes is decreased, the flow of cooling water in drum wheel is unnecessary or decreased, and a polycrystal die set is used.
Description
Technical field
The present invention relates to a kind of aluminum steel drawing process, especially relate to a kind of aluminum wiredrawing process.
Background technology
China many cables manufacturer circle aluminum steel is generally also continued to use the drawing of horizontal non-slip savings formula aluminium big drawing machine at present, and three kinds of six, eight and ten moulds are arranged.Its equipment is generally by oil sump, oil groove, drum, diaphragm capsule and group line, compositions such as retractable line apparatus.About the highest 12m/s of drawing speed, and stop and to change dish, this kind device structure is simple, low price.Its drawing process technology basically identical: ￠ 9.5mm circle aluminium bar is as inlet wire, according to equipment with go out linear diameter and prepare mould, each surface of tub wheel all is tied with round aluminum steel, logical recirculated water cools off the circle aluminum steel in the drum, and the oil in the oil groove is with pump the wire drawing oil in the big oil sump to be supplied with lubricate and the mould in the oil groove risen lubricated, cooling effect by circulation.
At present general aluminium drawing process is: aluminum steel adopts the discontinuous repeatedly stretching of non-sliding type on horizontal aluminium big drawing machine, generally be long-pending line formula big drawing machine.With ￠ 9.5mm continuous casting and rolling aluminium bar is inlet wire, the line base is by the tungsten carbide wire drawing die, tungsten carbide wire drawing die number and specification are decided according to going out the linear diameter needs, keep the metal yield limit of tensile stress less than the die orifice port of export simultaneously under the effect of certain tensile force, the cross section that makes the line base reduces and the length increase reaches the purpose of stretching.The line base twines on drum in the middle of each about the 20-80 circle, and the general 3-5 circle that twines on the extreme trace drum tightly wraps line and do not slide by means of takeup tension.Mould all adopts tungsten carbide die.
This technology is published in China Machine Press, write by Zhang Zhiqing, the Shanghai Electrical Cable Research Institute authorization＜electric wire technology〉and China Machine Press's publication, Huang Haoshi chief editor＜bare wire technology and Liaoning science tech publishing house publish, Lou Erkang writes＜modern cable work〉in introduction is all arranged.At present a lot of producers such as Zhejiang Wan Ma Cable Co., Ltd, Shandong Luneng Cable Co., Ltd, Hebei Baofeng Cable Co Ltd, Hangzhou Zhongce Cable Co., Ltd etc. all have this kind equipment to adopt this kind wire-drawing technology.So how on this kind equipment, to pull out the round aluminum steel of cleaning light, have crucial meaning.
Drawing lubricating oil adopts the big La Lasi oil of fine aluminum, and is lubricated with the pump fuel feeding that circulates.Adopt water cooling in the drum simultaneously, because wire drawing oil circulates, there is many aluminium end to pollute wire drawing oil in the oil, even the aluminium end is also not obvious by oil precipitation and overanxious treatment effect, so this technology greatest drawback is that circle aluminum steel surface is unclean, and is very huge to the quality influence of cable.The main deficiency of these technologies is that the round aluminum steel surface that draws is unclean, and greasy dirt is arranged, and need often change oil during drawing, and the effect that has both increased production cost and removal aluminium end is also bad.
Summary of the invention
Technical problems such as the present invention solves when the existing in prior technology aluminum steel draws easily to pollute, and circle aluminum steel surface is unclean; Provide a kind of reasonable in design, technological operation is easy, easily makes the aluminum wiredrawing process of aluminum steel cleaning surfaces.
It is big that the present invention also solves the loss of existing in prior technology wire drawing oil simultaneously, wastes technical problems such as serious, provides a kind of preparation acyclic easily oil, makes aluminum wiredrawing process with low cost.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: aluminum steel adopts the discontinuous repeatedly stretching of non-sliding type on horizontal aluminium big drawing machine, with continuous casting and rolling aluminium stalk is inlet wire, the line base is by the tungsten carbide wire drawing die, under the effect of certain tensile force, the cross section that makes the line base reduces and the length increase reaches the purpose of stretching, the line base is twining on the drum in the middle of each about the 20-80 circle, the general 3-5 circle that twines on the extreme trace drum, line is tightly wrapped and do not slide by means of takeup tension, the original tungsten carbide die that all adopts of mould, now last two to three change employing glomerocryst mould into, drawing lubricating oil adopted the big La Lasi oil of aluminium originally, and was lubricated with the pump fuel feeding that circulates, and adopted water cooling in the drum simultaneously, wire drawing oil circulates, technology characteristics is on the basis of existing equipment now, adopts special drawing lubricating oil, reduces fuel feed pump and oil return pipe quantity, close or reduce the flow of the cooling water in the drum, the mould in the diaphragm capsule changes the glomerocryst mould into.
As preferably, the drawing lubricating oil that described employing is special is closed the fuel feed pump and the oil return pipe of last two to three oil grooves, closes the cooling water in these several the drums during wire drawing simultaneously, and the mould in the diaphragm capsule is the glomerocryst mould.
As preferably, described drawing lubricating oil be high temperature resistant butter at high temperature be difficult for thinning and machine oil formulated.
It is formulated by 6: 4 to 8: 2 that a kind of special oil of aluminum wiredrawing process, drawing lubricating oil are that high temperature resistant butter at high temperature is difficult for thinning and machine oil.
As preferably, described drawing lubricating oil be high temperature resistant butter at high temperature be difficult for thinning and machine oil formulated by 7: 3.
The circle aluminum steel is when drawing on the aluminium big drawing machine, and general what adopt is recycle oil, in oil, have many aluminium end to be sorry when drawing aluminum steel and filter, wearing or featuring stage armour oil smoke post precipitation remove the aluminium end again with or often change wire drawing oil and can not deal with problems; There is aluminium end pollution can make fry dried food ingredients black in the oil; Recycle oil plays lubrication on the one hand to circle aluminum steel and mould but also plays the effect of cooling simultaneously, and round aluminum steel surface temperature can not be raise, and can cause round aluminum steel surface unclean during drawing; The wire drawing of adopting new technology now, with last 2---circulating oil path is closed in and adds special drawing lubricating oil in the oil groove in the 3 road oil grooves, tailor-made oil does not circulate during drawing, lubricate and do not play cooling effect, close the cooling water in these several the drums during wire drawing simultaneously, close the number of elements of cooling water and the flow of water and should decide on the aluminum steel surface cleanness degree; Circle aluminum steel surface can produce high temperature when drew this moment, will be bonded at the greasy dirt on round aluminum steel surface along with high temperature evaporation falls; When temperature is high can the time tungsten carbide die wearing and tearing in the diaphragm capsule cause round aluminum steel surface to produce burr, grooving, not bright and clean, mass defects such as the surface is unclean, ellipse; Changing high temperature resistant, wear-resisting glomerocryst mould into just solves these problems.
Therefore, the present invention has following advantage: the aluminum steel surface of using this method to draw is very cleaned, and electrical property, mechanical performance, the surface quality of round aluminum steel all meet the GB3955 standard simultaneously; Technological operation is easy, and acyclic oil preparation is convenient, with low cost.Recycle oil can use repeatedly by precipitation process and save production cost.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1:
Aluminum steel adopts the discontinuous repeatedly stretching of non-sliding type on horizontal aluminium big drawing machine, generally be long-pending line formula big drawing machine; With ￠ 9.5mm continuous casting and rolling aluminium bar is inlet wire, former line base is by the tungsten carbide wire drawing die, number and specification are decided according to going out the linear diameter needs, under the effect of certain tensile force, keep the metal yield limit of tensile stress less than the die orifice port of export, the cross section that makes the line base reduces and the length increase reaches the purpose of stretching; The line base twines on drum in the middle of each about the 20-80 circle, and the general 3-5 circle that twines on the extreme trace drum tightly wraps line and do not slide by means of takeup tension; Original mould all adopts tungsten carbide die.Drawing lubricating oil adopts the big La Lasi oil of aluminium, and is lubricated with the pump fuel feeding that circulates; Adopt water cooling because wire drawing oil circulates in the drum simultaneously, there is many aluminium end to pollute wire drawing oil in the oil, also not obvious by oil precipitation and overanxious treatment effect, so it is this technology greatest drawback is that circle aluminum steel surface is unclean, very huge to the quality influence of cable; For improving the uncleanly quality problems in aluminum steel surface, we pass through test repeatedly, mainly improve at aspects such as wire drawing oil, moulds; Concrete grammar is: the fuel feed pump and the oil return pipe of a last 2-3 oil groove are closed, do not adopt the circulating lubricating oil in the oil sump, close the cooling water in these several the drums simultaneously, use drawing lubricating oil, drawing lubricating oil is that high temperature resistant butter and machine oil are prepared in 7: 3 ratios, drawing lubricating oil is packed in the oil groove, and this oil can not circulate, and the tungsten carbide die in the oil groove that adds tailor-made oil changes the glomerocryst mould into and draws then.
The anticorrosion steel-cored aluminium strand that adopts above method to produce draws the circle aluminum steel, and specification is ￠ 3.85 ± 0.04mm, and the present invention adopts L6 circle aluminium bar, and tensile strength is 121N/mm
2, elongation rate of tensile failure is 11%, quality meets the GB3954 standard-required.It is ￠ 3.86mm that the LY9 circle aluminum steel that draws detects diameter through quality restriction, and flexing test is not ftractureed, and is 171Mpa before the tensile strength strand, and the strand back is 164Mpa, resistivity: 0.02795 (P20 Ω mm
2/ m), finished product is through the detection at national electric wire quality supervision and test center: circle aluminum steel diameter: ￠ 3.86mm, cleaning surfaces, bright quality meet the requirements tensile strength: the standard minimum is 152Mpa, surveys to be: 160～164Mpa.Flexing test is not ftractureed, resistivity: standard is 0.028264 (P20 Ω mm
2/ m), actual measurement is 0.02793 (P20 Ω mm
2/ m) every index all meets the requirements.
Embodiment 2:
The aerial cable that adopts above method to produce adopts L4 circle aluminium bar, and tensile strength is 111N/mm
2, elongation rate of tensile failure is 13%, is drawn into ￠ 2.6mm circle aluminum steel, and detecting diameter through quality restriction is ￠ 2.6mm, and flexing test is not ftractureed, and tensile strength is 181Mpa, the standard minimum is 173Mpa, resistivity: 0.02790 (P20 Ω mm
2/ m), standard is 0.028264 (P20 Ω mm
2/ m), and cleaning surfaces, bright and clean no burr, dimensionally stable, quality meets the GB3955 standard-required.Finished product is through the detection at national electric wire quality supervision and test center: maximum 0.164 Ω of conductor resistance (20 ℃) standard/km, and actual measurement is 0.160 Ω/km, any surface finish, no greasy dirt, no burr, quality meets standard-required.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (2)
1. aluminum wiredrawing process, aluminum steel adopts the discontinuous repeatedly stretching of non-sliding type on horizontal aluminium big drawing machine, with continuous casting and rolling aluminium bar is inlet wire, the line base is by the tungsten carbide wire drawing die, under the effect of certain tensile force, the cross section that makes the line base reduces and the length increase reaches the purpose of stretching, the line base twines the 20-80 circle on drum in the middle of each, twine the 3-5 circle on the extreme trace drum, line is tightly wrapped and do not slide by means of takeup tension, mould all adopts tungsten carbide die, drawing lubricating oil adopts the big La Lasi oil of aluminium, lubricated with the pump fuel feeding that circulates, adopt the recirculated water cooling simultaneously in the drum, wire drawing oil circulates, it is characterized in that adopting acyclic drawing lubricating oil, the fuel feed pump and the oil return pipe of last two to three oil grooves are closed, reduce the flow of the cooling water in the drum simultaneously, draw after adopting tungsten carbide die in the oil groove of acyclic drawing lubricating oil to change the glomerocryst mould into.
2. aluminum wiredrawing process according to claim 1 is characterized in that, described acyclic drawing lubricating oil is that high temperature resistant butter and machine oil are formulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101555826A CN100425365C (en) | 2006-12-29 | 2006-12-29 | Aluminum wiredrawing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101555826A CN100425365C (en) | 2006-12-29 | 2006-12-29 | Aluminum wiredrawing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028633A CN101028633A (en) | 2007-09-05 |
| CN100425365C true CN100425365C (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101555826A Expired - Fee Related CN100425365C (en) | 2006-12-29 | 2006-12-29 | Aluminum wiredrawing process |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787007B (en) * | 2012-04-23 | 2013-10-16 | 广州市联诺化工科技有限公司 | Green environment-friendly soluble stamping and drawing oil and preparation method thereof |
| CN102776058B (en) * | 2012-07-24 | 2013-12-11 | 东莞市安美润滑科技有限公司 | Aqueous lubricating liquid for stamping, stretching and forming cell phone battery shell, preparation method and application method thereof |
| CN107737811A (en) * | 2017-10-17 | 2018-02-27 | 天津市希格玛电气有限公司 | A kind of aluminium alloy conductor drawing process |
| CN111822531A (en) * | 2020-05-29 | 2020-10-27 | 安美科技股份有限公司 | Novel aluminum wire drawing process |
| CN113182372A (en) * | 2021-04-25 | 2021-07-30 | 杭州富阳飞润五金有限公司 | Closed high-safety continuous-tank wire drawing system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241836A (en) * | 2001-02-14 | 2002-08-28 | Nippon Seisen Co Ltd | Fine stainless-steel wire for spring |
| CN1546250A (en) * | 2003-12-12 | 2004-11-17 | 江苏中天科技股份有限公司 | Aluminium-clad wire wet dragging method for electrician |
| JP2004358495A (en) * | 2003-06-03 | 2004-12-24 | Nissan Motor Co Ltd | Jig for cold drawing and lubricating oil composition used therefor |
| CN1597163A (en) * | 2004-08-05 | 2005-03-23 | 江苏金塔电力器材设备有限公司 | Improved aluminium sheathed steel wiredrawing lubricating technology |
| WO2005095563A1 (en) * | 2004-03-31 | 2005-10-13 | Idemitsu Kosan Co., Ltd. | Lubricant composition for plastic working |
-
2006
- 2006-12-29 CN CNB2006101555826A patent/CN100425365C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241836A (en) * | 2001-02-14 | 2002-08-28 | Nippon Seisen Co Ltd | Fine stainless-steel wire for spring |
| JP2004358495A (en) * | 2003-06-03 | 2004-12-24 | Nissan Motor Co Ltd | Jig for cold drawing and lubricating oil composition used therefor |
| CN1546250A (en) * | 2003-12-12 | 2004-11-17 | 江苏中天科技股份有限公司 | Aluminium-clad wire wet dragging method for electrician |
| WO2005095563A1 (en) * | 2004-03-31 | 2005-10-13 | Idemitsu Kosan Co., Ltd. | Lubricant composition for plastic working |
| CN1597163A (en) * | 2004-08-05 | 2005-03-23 | 江苏金塔电力器材设备有限公司 | Improved aluminium sheathed steel wiredrawing lubricating technology |
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| Publication number | Publication date |
|---|---|
| CN101028633A (en) | 2007-09-05 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 311305 No. 88, South Ring Road, Ling'an Economic Development Zone, Zhejiang Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 No. 88, South Ring Road, Ling'an Economic Development Zone, Zhejiang Patentee before: Zhejiang Wanma Cable Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20161229 |