CN101127263A - Large diameter copper casting steel wire continuous hot-dipping tin preparation method - Google Patents
Large diameter copper casting steel wire continuous hot-dipping tin preparation method Download PDFInfo
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- CN101127263A CN101127263A CNA2007101336005A CN200710133600A CN101127263A CN 101127263 A CN101127263 A CN 101127263A CN A2007101336005 A CNA2007101336005 A CN A2007101336005A CN 200710133600 A CN200710133600 A CN 200710133600A CN 101127263 A CN101127263 A CN 101127263A
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Abstract
The utility model relates to a preparation method for continuous hot dip tin using big diameter copper casting steel wire, which is mainly characterized in the following procedures. (1) Thick drawing: the high quality low carbon steel wire rod is drawn into coiled wire rod using a wire drawing machine; (2) Copper casting: the coiled wire rod is dried and heated in the heating furnace and then casts into a copper clad steel coiled wire rod roughcast in the power frequency copper casting furnace; (3) Thin drawing: the copper clad steel coiled wire rod roughcast is drawn into single strand copper casting steel wire by the wire drawing machine; (4) Heat treatment: the coiled wire rod is loaded to be heated in the vacuum annealing oven to get a single strand long length soft copper casting steel core wire; (5) Hot dip tin: dip the copper casting steel core wire which has been marinated in the zinc chloride solution into the tin liquid subsequently to get a single strand big diameter grounding steel wire. The hot dip tin copper casting grounding steel wire prolongs the service life compared with the prior copper casting steel core ground line because the dip tin copper casting grounding steel wire prolongs the complete corruption time of tin.
Description
Technical field:
What the present invention relates to is the earth connection technical field of tin, copper, three kinds of metal composite of steel, is specially the preparation method of large diameter copper casting steel wire continuous hot-dipping tin.
Background technology:
The common earthing material of China adopts hot-galvanized steel as earth connection at present, because hot-galvanized steel zinc layer is thin, zinc is more active, thereby shorter at the corrosion-resistant time limit of coastal chemical enterprise.External usually with fine copper as earth connection, but, easily underground other active metal pipeline is produced electrochemical corrosion, and it is bigger to connect welding cost, fails to be promoted the use of in China always because the copper material price is more expensive, the electrode potential of copper is than the steel height.
In recent years, utilize the height of copper to lead characteristic and excellent corrosion resistance and be made into the copper covered steel earth connection and progressively promote, but this line still fails to solve the electrochemical corrosion problem to underground other metal pipe line.And general zinc-plated its diameter is below φ 4.0mm, and tin thickness only is 2 μ m, and copper layer thickness only is below the 10 μ m.Diameter is greater than 8.00mm, and 300 meters length continuous hot-dipping tin cast copper ground connection steel wires were never reported in the past.
Summary of the invention:
The objective of the invention is in order to overcome the weak point of above-mentioned copper covered steel earth connection, a kind of preparation method that can effectively reduce the special-purpose tinning of top layer electrode potential is provided.
Technical solution of the present invention is: the preparation method of large diameter copper casting steel wire continuous hot-dipping tin mainly may further comprise the steps:
(1) rough: with high-quality mild steel wire rod, first deoxidation layer (be commonly called as and peel off) operation is drawn into dish circle line with wire drawing machine then;
(2) cast copper: will coil and enter heating furnace (nitrogen protection) oven dry heating after the circle line neutralizes, cleans through on-line straightening, pickling, alkali, enter power frequency cast copper stove again, the crystallization in being installed with the graphite mo(u)ld crystallizer of deciding the core steel core of 1200 ℃ copper liquid is continuously cast into copper-clad steel disk circle blank;
(3) finish draw: above-mentioned copper-clad steel disk circle blank is drawn into the sub-thread copper casting steel wire of precision size Control in ± 0.02mm scope by wire drawing machine;
(4) heat treatment: go into the vacuum annealing furnace heating with above-mentioned dish circle is traditional thread binding, insulation is more than 6 hours, hangs out flue and is cooled to normal temperature and takes out and make the soft attitude cast copper of sub-thread length steel core wire rod;
(5) tinning: again this soft attitude cast copper steel core wire rod is aligned, entered liquor zinci chloridi after the watery hydrochloric acid pickling through three latitudes, cast copper steel core wire rod through soaking the superchlorination zinc solution enters in the tin liquor immediately, through smear line mould water-cooled dry up after the sizing take-up bundled, make sub-thread major diameter ground connection steel wire.
In the described cast copper step, will coil the circle line and be heated to 350 ℃-400 ℃ through oven dry.
In the described heat treatment step, will coil that circle is traditional thread binding goes into vacuum annealing furnace and be heated to 850 ℃-900 ℃.
Use tinning cast copper ground connection steel wire of the present invention, have the following advantages:
1, tin, copper, compound metallurgical molecule combination, the composite bed thicker (copper layer thickness 〉=1.00mm, tin thickness 〉=100 μ m) of being of steel three-layer metal;
2, the top layer is the tinning layer, and its electricity connects current potential and steel is approaching, reduces the electrochemical corrosion of copper casting steel wire to underground tubing significantly;
3, because top layer tin is more bold and vigorous than work in copper, and according to Principles of Metal Erosion, tinning cast copper ground connection steel wire has prolonged the time that tin is all eroded than former cast copper steel core earth connection corrosion life, its service life is longer.
4, owing to the antioxygen of tin, tinning cast copper ground connection steel wire atmospheric corrosion resistance is better than cast copper steel core earth connection, can do ground connection drawing, downlead use, and its outward appearance is difficult for oxidation.
Embodiment:
The preparation method of large diameter copper casting steel wire continuous hot-dipping tin, concrete steps are as follows:
(1) rough: with the high-quality mild steel wire rod of diameter phi 14, first deoxidation layer (be commonly called as and peel off) operation is drawn into the dish circle line of diameter phi 13.00 then with big drawing machine, and its dish circle length is not less than 300 meters/dish.
(2) cast copper: be heated to 350 ℃-400 ℃ with entering heating furnace (nitrogen protection) oven dry after the round line process of the dish of φ 13 on-line straightening, pickling, alkali neutralization, the cleaning; enter power frequency cast copper stove again; the crystallization in being installed with the graphite mo(u)ld crystallizer of deciding the core steel core of 1200 ℃ copper liquid, being continuously cast into external diameter is φ 15.50mm copper-clad steel disk circle blank.
(3) finish draw: above-mentioned copper-clad steel disk circle blank is drawn into the copper casting steel wire of the sub-thread φ 8.00mm above specification of precision size Control in ± 0.02mm scope by big drawing machine, length be not less than 300 meters/enclose.
(4) heat treatment: go into vacuum annealing furnace and be heated to 850 ℃-900 ℃ above-mentioned dish circle is traditional thread binding, insulation is more than 6 hours, hangs out flue and is cooled to normal temperature and takes out and make the soft attitude cast copper of sub-thread length steel core wire rod.
(5) tinning: again this soft attitude cast copper steel core wire rod is aligned, entered liquor zinci chloridi after the watery hydrochloric acid pickling through three latitudes, cast copper steel core wire rod through soaking the superchlorination zinc solution enters in the tin liquor immediately, through smear line mould water-cooled dry up after the sizing take-up bundled, make sub-thread major diameter (φ 8.00-φ 15.00), length (300 meters/bundle) cast copper (copper is thick in 1.00mm) ground connection steel wire.
Claims (3)
1. the preparation method of large diameter copper casting steel wire continuous hot-dipping tin is characterized in that: mainly may further comprise the steps:
(1) rough: with high-quality mild steel wire rod, first deoxidation layer (be commonly called as and peel off) operation is drawn into dish circle line with wire drawing machine then;
(2) cast copper: will coil and enter heating furnace (nitrogen protection) oven dry heating after the circle line neutralizes, cleans through on-line straightening, pickling, alkali, enter power frequency cast copper stove again, the crystallization in being installed with the graphite mo(u)ld crystallizer of deciding the core steel core of 1200 ℃ copper liquid is continuously cast into copper-clad steel disk circle blank;
(3) finish draw: above-mentioned copper-clad steel disk circle blank is drawn into the sub-thread copper casting steel wire of precision size Control in ± 0.02mm scope by wire drawing machine;
(4) heat treatment: go into the vacuum annealing furnace heating with above-mentioned dish circle is traditional thread binding, insulation is more than 6 hours, hangs out flue and is cooled to normal temperature and takes out and make the soft attitude cast copper of sub-thread length steel core wire rod;
(5) tinning: again this soft attitude cast copper steel core wire rod is aligned, entered liquor zinci chloridi after the watery hydrochloric acid pickling through three latitudes, cast copper steel core wire rod through soaking the superchlorination zinc solution enters in the tin liquor immediately, through smear line mould water-cooled dry up after the sizing take-up bundled, make sub-thread major diameter ground connection steel wire.
2. the preparation method of large diameter copper casting steel wire continuous hot-dipping tin according to claim 1 is characterized in that: in the cast copper step, will coil the circle line and be heated to 350 ℃-400 ℃ through oven dry.
3. the preparation method of large diameter copper casting steel wire continuous hot-dipping tin according to claim 1 is characterized in that: in the heat treatment step, will coil that circle is traditional thread binding goes into vacuum annealing furnace and be heated to 850 ℃-900 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101336005A CN100508079C (en) | 2007-09-24 | 2007-09-24 | Large diameter copper casting steel wire continuous hot-dipping tin preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101336005A CN100508079C (en) | 2007-09-24 | 2007-09-24 | Large diameter copper casting steel wire continuous hot-dipping tin preparation method |
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| CN101127263A true CN101127263A (en) | 2008-02-20 |
| CN100508079C CN100508079C (en) | 2009-07-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070421A (en) * | 2015-09-02 | 2015-11-18 | 无锡通用钢绳有限公司 | Copper-clad steel contact wire production equipment and copper-clad steel contact wire production method |
| CN105304221A (en) * | 2015-11-22 | 2016-02-03 | 天津市宏远电子有限公司 | Hard and semi-hard tin-coated copper wire manufacturing method |
| CN105845192A (en) * | 2016-03-22 | 2016-08-10 | 长沙理工大学 | Copper, aluminum and steel three-layer clad composite wire and formation method thereof |
| CN106906434A (en) * | 2017-02-28 | 2017-06-30 | 江苏金合益复合新材料有限公司 | Copper covers the production method of steel |
| CN108620442A (en) * | 2018-05-07 | 2018-10-09 | 安徽润藤电缆材料科技有限公司 | A kind of alloy copper wiredrawing method |
| CN111933352A (en) * | 2020-08-27 | 2020-11-13 | 北京市金合益科技发展有限公司 | Device and method for producing flat-belt type copper-clad steel through hot melting continuous casting and continuous rolling |
| CN112133491A (en) * | 2020-08-27 | 2020-12-25 | 北京市金合益科技发展有限公司 | Production method of flexible flat-band type copper-clad steel |
| CN114709026A (en) * | 2022-03-30 | 2022-07-05 | 合隆防爆电气有限公司 | Acid-free and alkali-free copper-clad steel processing technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124971A (en) * | 1977-03-21 | 1978-11-14 | Arch Manufacturing Company | Cable winding apparatus and method |
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2007
- 2007-09-24 CN CNB2007101336005A patent/CN100508079C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070421A (en) * | 2015-09-02 | 2015-11-18 | 无锡通用钢绳有限公司 | Copper-clad steel contact wire production equipment and copper-clad steel contact wire production method |
| CN105304221A (en) * | 2015-11-22 | 2016-02-03 | 天津市宏远电子有限公司 | Hard and semi-hard tin-coated copper wire manufacturing method |
| CN105845192A (en) * | 2016-03-22 | 2016-08-10 | 长沙理工大学 | Copper, aluminum and steel three-layer clad composite wire and formation method thereof |
| CN105845192B (en) * | 2016-03-22 | 2017-04-26 | 长沙理工大学 | Copper, aluminum and steel three-layer clad composite wire and formation method thereof |
| CN106906434A (en) * | 2017-02-28 | 2017-06-30 | 江苏金合益复合新材料有限公司 | Copper covers the production method of steel |
| CN108620442A (en) * | 2018-05-07 | 2018-10-09 | 安徽润藤电缆材料科技有限公司 | A kind of alloy copper wiredrawing method |
| CN111933352A (en) * | 2020-08-27 | 2020-11-13 | 北京市金合益科技发展有限公司 | Device and method for producing flat-belt type copper-clad steel through hot melting continuous casting and continuous rolling |
| CN112133491A (en) * | 2020-08-27 | 2020-12-25 | 北京市金合益科技发展有限公司 | Production method of flexible flat-band type copper-clad steel |
| CN114709026A (en) * | 2022-03-30 | 2022-07-05 | 合隆防爆电气有限公司 | Acid-free and alkali-free copper-clad steel processing technology |
| CN114709026B (en) * | 2022-03-30 | 2024-01-30 | 合隆防爆电气有限公司 | Copper-clad steel processing technology without acid and alkali participation |
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| Publication number | Publication date |
|---|---|
| CN100508079C (en) | 2009-07-01 |
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Owner name: JIANGSU JINHEYI NEW COMPOSITE MATERIALS CO., LTD. Free format text: FORMER OWNER: SUN YONGCHUN Effective date: 20100531 |
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Free format text: CORRECT: ADDRESS; FROM: 224002 ROOM 106, BUILDING 9, NO.9, JIANJUN EAST ROAD, TINGHU DISTRICT, YANCHENG CITY, JIANGSU PROVINCE TO: 224011 ECOLOGY SCIENCE AND TECHNOLOGY PARK, LONGGANG TOWN, YANDU DISTRICT, YANCHENG CITY, JIANGSU PROVINCE |
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Effective date of registration: 20100531 Address after: 224011 ecological science and Technology Park, Long Gang Town, Yancheng City, Jiangsu Patentee after: Jiangsu Jinheyi Composite New Material Co., Ltd. Address before: 224002, room 9, building 9, 106 army building East Road, Yancheng City, Jiangsu Province Patentee before: Sun Yongchun |