CN1331622C - Composite stainless steel wire and its manufacturing process - Google Patents
Composite stainless steel wire and its manufacturing process Download PDFInfo
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- CN1331622C CN1331622C CNB2004100181268A CN200410018126A CN1331622C CN 1331622 C CN1331622 C CN 1331622C CN B2004100181268 A CNB2004100181268 A CN B2004100181268A CN 200410018126 A CN200410018126 A CN 200410018126A CN 1331622 C CN1331622 C CN 1331622C
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Abstract
The present invention discloses a composite stainless steel wire and a manufacturing process thereof. The composite stainless steel wire of the present invention is composed of a carbon steel wire core and a stainless steel band longitudinally clad outside the carbon steel wire core, wherein the sectional area ratio of the stainless steel cladding layer to a carbon steel wire is 1: 9 to 4: 6. The manufacturing process of the composite stainless steel wire comprises the following steps: 1) unreeling, deoiling and derusting the steel wire; 2) letting-out and deoiling the band of stainless steel; 3) cladding and welding; 4) using a bimetal combination process and heat treatment; 5) stretching; 6) annealing. The present invention has the advantages of no pollution, low energy consumption, low cost, high efficiency, and high strength, high corrosion resistance, good quality, etc. of the product which is made.
Description
Technical field
The present invention relates to a kind of production technology of composite material, relate in particular to a kind of production technology of composite stainless steel wire rod.
Background technology
High quality carbon steel wire in the market or stainless steel wire have high tensile strength because of it, and price is lower, extensively be used in each field, but because it very easily corrodes, need to adopt zinc-plated, oiling in the use, cross antirust means such as mould, but corrosion protection effect is not very desirable, must regularly replace, and uses very trouble; Stainless steel wire good corrosion resistance but intensity is not high, and because scarcity of resources, cost is too high, influences its scope of application.At present still carbon steel and stainless steel are not carried out compound technology.To be 98233869.4 denominations of invention introduced the technology of copper covered steel and copper cover aluminum respectively for " copper cover aluminum bimetallic conductor " and application number are 00124464.7 and are called two Chinese patents of " production method of copper covered steel bimetallic wire " to application number.
Summary of the invention
At the deficiency that prior art exists, the object of the present invention is to provide a kind of production technology of composite stainless steel wire rod.
The present invention is achieved through the following technical solutions:
Stainless steel and carbon steel are compound, are the products of a seriation, and stainless steel is low carbon austenitic stainless steel, and as 304,316L etc., carbon steel is basic, normal, high carbon steel, and wherein 6#-15# is a mild steel, and 15#80# is a medium and high carbon steel.
A kind of composite stainless steel wire rod of the present invention, by the carbon steel wire core with vertically be coated on the outer stainless steel band of carbon steel wire core and form, the sectional area ratio of described stainless steel coating layer and carbon steel wire is 1: 9-4: 6.
Wherein stainless steel is low carbon austenitic stainless steel, and as 304,316L etc., carbon steel wire is 6#-80# carbon steel wire or alloy-steel wire.
The preparation technology of this composite stainless steel wire rod comprises the steps:
(a) steel wire and two kinds of raw material of stainless steel band are cleaned;
(b) stainless steel band is rolled into tubulose parcel core silk by shaping mould;
(c) longitudinal seam of soldering stainless steel band;
(d) bimetallic is in conjunction with technology and heat treatment: the employing diffusion technique of low-carbon steel core forms the metallurgical binding face.The method of the employing physics of middle and high carbon steel core forms the faying face of intermolecular mutual absorption, can adopt following two kinds of methods: 1, adopt the intermediate layer, eliminate the influence of carburizing; 2, adopt Fast Heating and cooling fast, Hot Quenching Heat Processing makes faying face form good physical bond or metallurgical binding, simultaneously, make the high-carbon steel sorbitizing, medium carbon steel has the effect of normalizing or quenching, and the stainless steel coating layer on surface has molten admittedly effect.Heating-up temperature is 850-1200 ℃, and heat time heating time, cooling velocity was 60-100 ℃/second within 60 seconds.
(e) stretch; Adopt particular manufacturing craft and technology such as rhinestone mould, natural diamond mould, pressure mould, rolling drawing mould, multi-pass stretches.The stretching pass deformation is at 10%-28%.Total deformation is at 50%-95%.
(f) annealing: adopt low temperature heat-treatment process to heat-treat, heat treatment temperature be 200-450 ℃ to eliminate stress.
Steel wire on-line cleaning in wherein said (a) step adopts the mode of machinery and water combination to clean; Stainless steel band adopts the degreasing of liquid degreaser.
Wherein said step (c) be welded as gas shielded arc welding, comprise argon arc welding Laser Welding etc.
In the described step (c), on heart yearn, coat the intermediate layer earlier earlier and weld with stainless steel band again, to eliminate the influence of carburizing.The intermediate layer of adopting is one or more in copper, aluminium, nickel, chromium or the associated alloys between steel wire and the stainless steel band.
By the composite stainless steel wire rod that said method makes, its tensile strength can reach 1800Mpa, and its percentage elongation can reach 30%, destroys in any case, and the interface of stainless steel and carbon steel or steel alloy does not all have lamination.
The present invention adopts stainless steel band bag carbon steel or alloy-steel wire, vertically seam and form the composition metal wire rod, through forming combination closely between the PROCESS FOR TREATMENT bimetallic, the composite stainless steel wire rod that the present invention makes, existing stainless decay resistance the intensity of carbon steel steel wire or alloy-steel wire is arranged again, and preparation process does not adopt pickling, therefore have pollution-freely, low energy consumption, low cost, efficient height, the product that makes have advantages such as high strength, highly corrosion resistant, quality are good.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
How further specify the present invention below in conjunction with accompanying drawing 1 realizes:
Embodiment 1
Steel wire unwrapping wire: adopt special-purpose pay off rack, 2 tons of unwrapping wire weight.Steel wire diameter Φ 6, the steel wire of grade of steel 6#.
Steel wire deoils: adopt online deoiling, the method that adopts machinery and liquid (alkalescence or neutral degreaser) to combine.In high temperature (100 ℃) high pressure (2MPa) vibration cleaning down.
Steel wire derusts: adopt online derusting, adopt mechanical means, be equivalent to the pure iron face of cutting type.
Stainless steel band is put band: adopt special use to put the band machine, put 150 kilograms of band weight.Austenic stainless steel belt 304, tape thickness 0.4mm, bandwidth 30mm.
Stainless steel band deoils: adopt the liquid metals degreaser to clean.
The cladding seam: the band by the cladding mould is rolled into tubulose, and the Laser Welding seam of tubulose longitudinal joint becomes an enclosure wall tube, and the sectional area ratio of stainless steel coating layer and carbon steel wire is 1: 9, adopts 304 stainless steel band, 6# high quality carbon steel wire.
Bimetallic is in conjunction with technology and heat treatment: adopt diffusion technique, form the metallurgical binding face.
Stretch (silk): light face stainless steel wire is difficult to stretch, and intensity improves just more difficult stretching of back, adopts rhinestone mould or natural diamond mould mould, adopts pressure mould, rolling drawing mould technology, and multi-pass stretches.The stretching pass deformation is at 10%-28%.Total deformation realizes good stretching (silk) at 50%-95%.
Annealing: adopt Low Temperature Heat Treatment, the 200-450 degree is to eliminate stress.
Stretch again after the annealing, finally make the composite stainless steel wire product.
Embodiment 2
Steel wire unwrapping wire: adopt special-purpose pay off rack, 2.5 tons of unwrapping wire weight.Steel wire diameter Φ 10, the steel wire of grade of steel 15#.
Steel wire deoils: adopt online deoiling, the method that adopts machinery and liquid (alkalescence or neutral degreaser) to combine.In high temperature (100 ℃) high pressure (2MPa) vibration cleaning down.
Steel wire derusts: adopt online derusting, adopt mechanical means, be equivalent to the pure iron face of cutting type.
Stainless steel band is put band: adopt special use to put the band machine, put 150 kilograms of band weight.Austenic stainless steel belt 316L, tape thickness 0.5mm, bandwidth 60mm.
Stainless steel band deoils: adopt alkaline degreaser to clean.
The cladding seam: the band by the cladding mould is rolled into tubulose, and the argon arc welding seam of tubulose longitudinal joint becomes an enclosure wall tube, and the sectional area ratio of stainless steel coating layer and carbon steel wire is 1: 3, adopts the stainless steel band of 316L, 15# high quality carbon steel wire.
Bimetallic is in conjunction with technology and heat treatment: because of carburizing might appear in middle and high carbon steel and stainless faying face, reduced stainless corrosion resistance, even produced fragility, can not form good binding.Adopt Fast Heating and cooling fast, technologies such as high temperature deformation heat treatment make faying face form good physical bond or metallurgical binding, simultaneously, make the high-carbon steel sorbitizing, medium carbon steel has the effect of normalizing or quenching, and the stainless steel cladding on surface has molten admittedly effect.Heating-up temperature is 850 ℃, and heat time heating time, cooling velocity was 60 ℃/second within 60 seconds.
Stretch (silk): light face stainless steel wire is difficult to stretch, and intensity improves just more difficult stretching of back, adopts rhinestone mould or natural diamond mould mould, adopts pressure mould, rolling drawing mould technology, and multi-pass stretches.The stretching pass deformation is at 10%-8%.Total deformation realizes good stretching (silk) 50%95%.
Annealing: adopt Low Temperature Heat Treatment, the 200-450 degree is to eliminate stress.
Stretch again after the annealing, finally make the composite stainless steel wire product.
The composite stainless steel wire product tensile strength that makes is 1000Mpa, and its percentage elongation is 30%,
Embodiment 3
Steel wire unwrapping wire: adopt special-purpose pay off rack, 3 tons of unwrapping wire weight.Steel wire is an alloy-steel wire, diameter of phi 18.
Steel wire deoils: adopt online deoiling, the method that adopts machinery and liquid (alkalescence or neutral degreaser) to combine.In high temperature (100 ℃) high pressure (2MPa) vibration cleaning down.
Steel wire derusts: adopt online derusting, adopt mechanical means, be equivalent to the pure iron face of cutting type.
Stainless steel band is put band: adopt special use to put the band machine, put 150 kilograms of band weight.Austenic stainless steel belt 304, tape thickness 0.5mm, bandwidth 60mm.
Stainless steel band deoils: adopt alkaline degreaser to clean.
The cladding seam: the band by the cladding mould is rolled into tubulose, and the argon arc welding seam of tubulose longitudinal joint becomes an enclosure wall tube, and the sectional area ratio of stainless steel coating layer and carbon steel wire is 4: 6, adopts 304 stainless steel band, the high duty alloy steel wire.
Bimetallic is in conjunction with technology and heat treatment: because of carburizing might appear in middle and high carbon steel and stainless faying face, reduced stainless corrosion resistance, even produced fragility, can not form good binding.Adopt Fast Heating and cooling fast, technologies such as high temperature deformation heat treatment make faying face form good physical bond or metallurgical binding, simultaneously, make the high-carbon steel sorbitizing, medium carbon steel has the effect of normalizing or quenching, and the stainless steel cladding on surface has molten admittedly effect.Heating-up temperature is 1000 ℃, and heat time heating time, cooling velocity was 80 ℃/second within 60 seconds.
Stretch (silk): light face stainless steel wire is difficult to stretch, and intensity improves just more difficult stretching of back, adopts rhinestone mould or natural diamond mould mould, adopts pressure mould, rolling drawing mould technology, and multi-pass stretches.The stretching pass deformation is at 10%-28%.Total deformation realizes good stretching (silk) at 50%-95%.
Annealing: adopt Low Temperature Heat Treatment, the 200-450 degree is to eliminate stress.
Stretch again after the annealing, finally make the composite stainless steel wire product.
Making composite stainless steel wire product tensile strength is 1700Mpa, and its percentage elongation is 20%,
Embodiment 4
Steel wire unwrapping wire: adopt special-purpose pay off rack, 2.5 tons of unwrapping wire weight.Steel wire diameter Φ 15, the steel wire of grade of steel 60#.
Steel wire deoils: adopt online deoiling, the method that adopts machinery and liquid (alkalescence or neutral degreaser) to combine.In high temperature (100 ℃) high pressure (2MPa) vibration cleaning down.
Steel wire derusts: adopt online derusting, adopt mechanical means, be equivalent to the pure iron face of cutting type.
Stainless steel band is put band: adopt special use to put the band machine, put 150 kilograms of band weight.Austenic stainless steel belt 316L, tape thickness 0.5mm, bandwidth 60mm.
Stainless steel band deoils: adopt alkaline degreaser to clean.
The cladding seam: the band by the cladding mould is rolled into tubulose, and the plasma welding seam of tubulose longitudinal joint becomes an enclosure wall tube, and the sectional area ratio of stainless steel coating layer and carbon steel wire is 4: 9, adopts the stainless steel band of 316L, 60# high quality carbon steel wire.
Bimetallic is in conjunction with technology and heat treatment: because of carburizing might appear in middle and high carbon steel and stainless faying face, reduced stainless corrosion resistance, even produced fragility, can not form good binding.Adopt Fast Heating and cooling fast, technologies such as high temperature deformation heat treatment make faying face form good physical bond or metallurgical binding, simultaneously, make the high-carbon steel sorbitizing, medium carbon steel has the effect of normalizing or quenching, and the stainless steel cladding on surface has molten admittedly effect.Heating-up temperature is 1200 ℃, and heat time heating time, cooling velocity was 100 ℃/second within 60 seconds.
Stretch (silk): light face stainless steel wire is difficult to stretch, and intensity improves just more difficult stretching of back, adopts rhinestone mould or natural diamond mould mould, adopts pressure mould, rolling drawing mould technology, and multi-pass stretches.The stretching pass deformation is at 10%-28%.Total deformation realizes good stretching (silk) at 50%-95%.
Annealing: adopt Low Temperature Heat Treatment, the 200-450 degree is to eliminate stress.
Stretch again after the annealing, finally make the composite stainless steel wire product.
Make the composite stainless steel wire product, its tensile strength is 1800Mpa, and its percentage elongation is 30%.
Embodiment 5
Steel wire unwrapping wire: adopt special-purpose pay off rack, 2.5 tons of unwrapping wire weight.Steel wire diameter Φ 12, the steel wire of grade of steel 80#.
Steel wire deoils: adopt online deoiling, the method that adopts machinery and liquid (alkalescence or neutral degreaser) to combine.In high temperature (100 ℃) high pressure (2MPa) vibration cleaning down.
Steel wire derusts: adopt online derusting, adopt mechanical means, be equivalent to the pure iron face of cutting type.
Stainless steel band is put band: adopt special use to put the band machine, put 150 kilograms of band weight.Austenic stainless steel belt 316L, tape thickness 0.4mm, bandwidth 50mm.
Stainless steel band deoils: adopt alkaline degreaser to clean.
The cladding seam: the band by the cladding mould is rolled into tubulose, and the argon arc welding seam of tubulose longitudinal joint becomes an enclosure wall tube, and the sectional area ratio of stainless steel coating layer and carbon steel wire is 1: 3, adopts the stainless steel band of 316L, 80# high quality carbon steel wire.
Bimetallic is in conjunction with technology and heat treatment: because of carburizing might appear in middle and high carbon steel and stainless faying face, reduced stainless corrosion resistance, even produced fragility, can not form good binding.Adopt to add intermediate layer copper at bimetallic in conjunction with technology, eliminate the influence of carburizing.
Stretch (silk): light face stainless steel wire is difficult to stretch, and intensity improves just more difficult stretching of back, adopts rhinestone mould or natural diamond mould mould, adopts pressure mould, rolling drawing mould technology, and multi-pass stretches.The stretching pass deformation is at 10%-28%.Total deformation realizes good stretching (silk) at 50%-95%.
Annealing: adopt Low Temperature Heat Treatment, the 200-450 degree is to eliminate stress.
Stretch again after the annealing, finally make the composite stainless steel wire product.
Make the composite stainless steel wire product, its tensile strength is 1800Mpa, and its percentage elongation is 30%.
Embodiment 6
Each step is identical with embodiment 5, just adopts in conjunction with technology at bimetallic to add intermediate layer nickel, eliminates the influence of carburizing.
Embodiment 7
Each step is identical with embodiment 4, just adopts in conjunction with technology at bimetallic to add the intermediate layer albronze, eliminates the influence of carburizing.
The above only is preferred embodiment of the present invention, is not to be used for limiting scope of the invention process.Be that all equalizations of doing according to the scope of the invention change and modification, be the present invention and contain.
Claims (7)
1, a kind of production technology of composite stainless steel wire rod comprises the steps:
(a) steel wire and two kinds of raw material of stainless steel band are cleaned;
(b) stainless steel band is rolled into tubulose parcel core silk by shaping mould;
(c) longitudinal seam of soldering stainless steel band;
(d) bimetallic is in conjunction with technology and heat treatment: mild steel adopts diffusion technique, forms the metallurgical binding face; Middle and high carbon steel adopts the method for physics to form the faying face of intermolecular mutual absorption, the concrete Fast Heating that adopts is cooled off with quick, Hot Quenching Heat Processing, wherein heating-up temperature is 850-1200 ℃, heat time heating time is within 60 seconds, cooling velocity is 60-100 ℃/second, make faying face form good physical bond or metallurgical binding, simultaneously, make the high-carbon steel sorbitizing, medium carbon steel has the effect of normalizing or quenching, and the stainless steel cladding on surface has molten admittedly effect;
(e) stretch; Adopt rhinestone mould, natural diamond mould, pressure mould, rolling drawing mould particular manufacturing craft and technology, multi-pass stretches, and the stretching pass deformation is at 10%-28%, and total deformation is at 50%-95%;
(f) annealing: adopt low temperature heat-treatment process to heat-treat.
2, the production technology of a kind of composite stainless steel wire rod according to claim 1 is characterized in that: steel wire on-line cleaning in described (a) step, adopt the mode of machinery and water combination to clean; Stainless steel band adopts the degreasing of liquid degreaser.
3, the production technology of a kind of composite stainless steel wire rod according to claim 1 is characterized in that: described step (c) be welded as gas shielded arc welding.
4, the production technology of a kind of composite stainless steel wire rod according to claim 3 is characterized in that: described gas shielded arc welding is a kind of in argon arc welding, Laser Welding or the plasma welding.
5, the production technology of a kind of composite stainless steel wire rod according to claim 1 is characterized in that: in the described step (c), coat the intermediate layer earlier earlier and weld with stainless steel band on heart yearn, to eliminate the influence of carburizing.
6, the production technology of a kind of composite stainless steel wire rod according to claim 5 is characterized in that: described intermediate layer is one or more in copper, aluminium, nickel, chromium or the associated alloys.
7, the production technology of a kind of composite stainless steel wire rod according to claim 1 is characterized in that: heat treatment temperature is 200-450 ℃ in the described step (f), to eliminate stress.
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| CNB2004100181268A CN1331622C (en) | 2004-04-30 | 2004-04-30 | Composite stainless steel wire and its manufacturing process |
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| CNB2004100181268A CN1331622C (en) | 2004-04-30 | 2004-04-30 | Composite stainless steel wire and its manufacturing process |
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| CN1569352A CN1569352A (en) | 2005-01-26 |
| CN1331622C true CN1331622C (en) | 2007-08-15 |
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| CN102294484B (en) * | 2010-06-22 | 2013-05-29 | 宝山钢铁股份有限公司 | Method for manufacturing 18-8 type austenite stainless steel-carbon steel coated steel plate |
| CN103358615A (en) * | 2013-07-25 | 2013-10-23 | 张家港市胜达钢绳有限公司 | Manufacture method of composite metal wire |
| CN104028570B (en) * | 2014-05-09 | 2016-02-03 | 江苏法尔胜泓昇集团有限公司 | Short route carbon steel/stainless steel composite silk production method |
| CN104138925B (en) * | 2014-06-18 | 2016-12-28 | 青岛申达众创技术服务有限公司 | A kind of preparation method of copper/phosphorus bimetallic capillary tube |
| CN106583476A (en) * | 2016-12-28 | 2017-04-26 | 东莞市科力钢铁线材有限公司 | Silvery bright steel wire acid-washing-free and drawing treatment process |
| CN108118417B (en) * | 2018-01-30 | 2020-07-10 | 湖南惠同新材料股份有限公司 | Soft magnetic composite metal fiber and preparation method and application thereof |
| CN111299476B (en) * | 2019-12-23 | 2022-04-15 | 太仓市惠得利弹簧有限公司 | Metal fatigue resistant spring steel wire processing technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152922A (en) * | 1980-04-28 | 1981-11-26 | Sumitomo Electric Ind Ltd | Production of stainless steel clad steel wire |
| JPS60255923A (en) * | 1984-05-30 | 1985-12-17 | Sumitomo Electric Ind Ltd | Manufacture of stainless steel-coated steel wire |
| CN2460289Y (en) * | 2000-12-26 | 2001-11-21 | 刘世程 | Double-metal compound wire of stainless steel cladded carbon steel |
| CN2485066Y (en) * | 2001-03-05 | 2002-04-10 | 华南理工大学 | Composite stainless steel bar with carbon steel core |
| CN1121941C (en) * | 2000-12-26 | 2003-09-24 | 刘世程 | Bimetallic composite wire of stainless steel coated carbon steel and its production process |
-
2004
- 2004-04-30 CN CNB2004100181268A patent/CN1331622C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152922A (en) * | 1980-04-28 | 1981-11-26 | Sumitomo Electric Ind Ltd | Production of stainless steel clad steel wire |
| JPS60255923A (en) * | 1984-05-30 | 1985-12-17 | Sumitomo Electric Ind Ltd | Manufacture of stainless steel-coated steel wire |
| CN2460289Y (en) * | 2000-12-26 | 2001-11-21 | 刘世程 | Double-metal compound wire of stainless steel cladded carbon steel |
| CN1121941C (en) * | 2000-12-26 | 2003-09-24 | 刘世程 | Bimetallic composite wire of stainless steel coated carbon steel and its production process |
| CN2485066Y (en) * | 2001-03-05 | 2002-04-10 | 华南理工大学 | Composite stainless steel bar with carbon steel core |
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