CN102476177B - Upward drawing method for copper alloy wire blank - Google Patents
Upward drawing method for copper alloy wire blank Download PDFInfo
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- CN102476177B CN102476177B CN 201010562549 CN201010562549A CN102476177B CN 102476177 B CN102476177 B CN 102476177B CN 201010562549 CN201010562549 CN 201010562549 CN 201010562549 A CN201010562549 A CN 201010562549A CN 102476177 B CN102476177 B CN 102476177B
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Abstract
The invention relates to a preparation method for forming a copper alloy liquid into a copper alloy wire blank, and the method comprises the following steps: burdening, smelting raw materials, drawing wires and cleaning to obtain a finished product. The preparation method also comprises the following steps between the steps of smelting raw materials and drawing wires: putting a crystallizer into the molten copper alloy liquid; injecting cold water into the water inlet of the jacket of the crystallizer; discharging cold water from the water outlet of the jacket; under the action of air pressure, causing the molten copper alloy liquid to successively enter the cone frustum-shaped lower part, cylindrical middle pat and inversed cone-frustum-shaped upper part of a graphite mould; in the process, successively cooling the copper alloy liquid to form a copper alloy wire blank; and under the action of a draft gear, causing copper alloy wire blank to enter the next step of drawing wires. The preparation method has the advantages of small investment, simple technology, energy conversation and environmental friendliness.
Description
Technical field
The invention belongs to the copper alloy manufacture field, specially refer to a kind of production technology of copper alloy wire base.
Background technology
Comprise that electric wire has following several production technology with the copper wire of copper cash, as continuous casting and rolling method, extrusion, horizontal casting method, on draw the method for forming, the continuous casting and rolling method for making need to adopt main equipment, before this copper and various other element such as tin, phosphorus, silicon, manganese etc. were joined melt in furnace according to proportioning, then ingot casting moulding, be to adopt main equipment to push again, then stretch, clean at last to form finished product.As follows:
Batching → fusing → intensification → continuous casting and rolling → wire drawing → cleaning
The technological process of extrusion is:
Batching → fusing → intensification → ingot casting → extruding → wire drawing → cleaning
The technological process of horizontal casting method is:
Batching → fusing → intensification → horizontal casting → wire drawing → cleaning
On draw the method for forming technological process be:
Batching → fusing → heat up → on draw moulding → wire drawing → cleaning
The advantage of continuous casting and rolling method is the line base dense structure that makes, evenly, and production efficiency is high, and shortcoming is to be only suitable in large-scale production, investment greatly, and risk is high, and the line base oxygen content of producing is slightly high, and impurity is arranged.
The advantage that extrusion is produced is in being suitable for, large-scale production scale, and the line base is organized high compaction, and shortcoming is that production efficiency is low, and joint is insecure, and impurity is arranged, and is not suitable for producing on a small scale wire rod.
The advantage that the horizontal casting method is produced is to be suitable for various production scales, and efficient is general, and shortcoming is the easily oxidation of line base surface, is organized as cast sturcture, has loose.
Be to be suitable for various production scales and draw the advantage that the method for forming produces on traditional, the product oxygen content is low, and impurity is less, and steady quality can be produced trickle or ultra-fine microfilament; Shortcoming is that production efficiency is general, and the line base is cast sturcture, and is loose, and the uneven components phenomenon is arranged.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of small investment, technique simple, can produce the upward drawing method for copper alloy wire blank of trickle wire rod and energy-conserving and environment-protective.
The technical solution used in the present invention is a kind of upward drawing method for copper alloy wire blank, comprise batching, the melting of raw material, wire drawing and cleaning form finished product, it also comprises the steps between the melting of raw material and drawing step, crystallizer is put into copper alloy liquid after the melting, described crystallizer comprises overcoat, on the coat water inlet and delivery port are set, be sleeved on the copper sheathing in the overcoat and be sleeved on the interior graphite mo(u)ld of copper sheathing, described graphite mo(u)ld is by the truncated cone bottom, cylindrical central part and rounding taper type top form, water inlet to overcoat injects cold water, make cold water from the delivery port of overcoat out, the copper alloy liquid that melts under the effect of air pressure enters the truncated cone bottom of graphite mo(u)ld successively, cylindrical central part and rounding taper type top, copper alloy liquid is successively cooling in this process, form the copper alloy wire base, under the effect of draw-gear, described copper alloy wire base enters next step drawing step.
Among the present invention, the temperature setting of described copper alloy liquid is set to its melting temperature and adds 50～100 ℃.The hydraulic pressure of cold water is 2～4MPa; The hauling speed of described draw-gear is 500～1500mm/min; Described mode of traction is for upwards suspending after the traction, downward counter pushing away again, and upwards traction is carried out so repeatedly again.
Copper alloy of the present invention is the copper alloy of copper-zinc-manganese alloy system.
The invention has the beneficial effects as follows that copper alloy liquid is directly formed to the copper alloy wire base, be suitable for different scales enterprise, its step is with to draw traditionally the method for forming identical, and difference is being drawn this step of moulding.
In the present invention, the copper alloy that configures is warmed up on this alloy melting point 50～100 ℃ behind furnace melting, after the alloy homogenising, draw moulding on can beginning; The graphite mo(u)ld device that overcoat is housed is vertically put into copper alloy liquid, making the bottom is 80～100cm apart from metal bath surface, at this moment, copper alloy liquid enters the truncated cone bottom of graphite mo(u)ld under atmospheric effect, because the graphite mo(u)ld wall has cold water to flow, make the inside and outside wall formation temperature gradient of graphite mo(u)ld and the top and the bottom formation temperature gradient of graphite mo(u)ld, copper alloy liquid is met the quench solidification moulding, under the traction of draw-gear, mode of traction is traction-time-out-counter pushing away-draw, the copper alloy wire base of moulding moves up like this, following copper alloy liquid moves up under the atmospheric pressure effect, meet the cold solid that becomes, this process by liquid-solid is successive, has therefore formed the bar of endless.In the initial period of copper alloy wire base moulding, in graphite mo(u)ld, insert a copper alloy wire base first, utilize this root copper alloy wire base that the copper alloy wire base of meeting cold forming is pulled out crystallizer, realize drawing step.
The copper alloy wire base constant product quality that the present invention produces, free from admixture, the surface non-oxidation, the interior tissue oxygen content is low, can carry out continuous drawing, produce trickle wire rod, be particularly suitable for the production of medium and small copper alloy wire factory, reduced production cost, reduced the scale of investment of fixed capital, having reduced risk, is the reliable approach of medium-sized and small enterprises' development.
Description of drawings
Fig. 1 is the structural representation of the crystallizer with smelting furnace of the present invention;
Fig. 2 is the structural representation of crystallizer of the present invention;
Fig. 3 is the structural representation of graphite mo(u)ld of the present invention.
In the drawings, 1 smelting furnace, 2 copper alloy liquid, 3 copper sheathings, 4 cold water, 5 graphite mo(u)lds, 6 delivery ports, 7 copper alloy wire bases, 8 water inlets, 9 overcoats, 10 rounding taper type tops, 11 cylindrical central part, 12 truncated cone bottoms, 13 draw-gears.
The specific embodiment
The present invention includes batching, raw material melting, on draw moulding, wire drawing and cleaning forms finished product, its concrete steps are, first the materials such as copper and tin, phosphorus, silicon, manganese are joined in the smelting furnace 1 according to proportioning, the materials such as tin, phosphorus, silicon, manganese reach as high as 10% of total raw material, after the material fusing, crystallizer is put into copper alloy liquid 2 after the fusing, and the temperature of copper alloy liquid 2 is that the melting temperatures of copper alloy liquid 2 itself add 50 ℃.Shown in accompanying drawing 1-3, described crystallizer comprises overcoat 9, be arranged on water inlet 8 and delivery port 6 on the overcoat 9, be sleeved on the copper sheathing 3 in the overcoat 9 and be sleeved on graphite mo(u)ld 5 in the copper sheathing 3, described graphite mo(u)ld 5 is comprised of truncated cone bottom 12, cylindrical central part 11 and rounding taper type top 10, water inlet 8 to overcoat 9 injects cold water 4, make cold water 4 from the delivery port 6 of overcoat 9 out, wherein the hydraulic pressure of cold water is 3MPa.The copper alloy liquid 2 that melts under the effect of air pressure enters truncated cone bottom 12, cylindrical central part 11 and the rounding taper type top 10 of graphite mo(u)ld 5 successively, copper alloy liquid 2 is successively cooling in this process, form copper alloy wire base 7, under the effect of draw-gear 13, copper alloy wire base 7 moves up, translational speed is 1000mm/min, and mode of traction is:
Traction → time-out → counter pushing away → draw
After having drawn, copper alloy wire base 7 solidifies, and copper alloy wire base 7 enters next step drawing step.
In initial drawing in the forming step, in graphite mo(u)ld 5, put into the copper alloy wire base in advance, copper alloy liquid 2 is when running into the copper alloy wire base and then cool off, and copper alloy liquid 2 becomes solid-state and is connected with the copper alloy wire base and connects, and forms the finished product step thereby enter next step wire drawing and clean.This part technology belongs to prior art, repeats no more.
Claims (5)
1. upward drawing method for copper alloy wire blank, comprise batching, the melting of raw material, wire drawing and cleaning form finished product, it is characterized in that it also comprises the steps between the melting of raw material and drawing step, crystallizer is put into copper alloy liquid (2) after the melting, described crystallizer comprises overcoat (9), be arranged on water inlet (6) and delivery port (7) on the overcoat (9), be sleeved on the copper sheathing (3) in the overcoat (9) and be sleeved on the interior graphite mo(u)ld (5) of copper sheathing (3), described graphite mo(u)ld (5) is by truncated cone bottom (12), cylindrical central part (11) and rounding taper type top (10) form, water inlet (6) to overcoat (9) injects cold water (4), make cold water (4) from the delivery port (8) of overcoat (9) out, the copper alloy liquid (2) that melts under the effect of air pressure enters the truncated cone bottom (12) of graphite mo(u)ld (5) successively, cylindrical central part (11) and rounding taper type top (10), copper alloy liquid (2) is successively cooling in this process, form copper alloy wire base (7), under the effect of draw-gear (13), described copper alloy wire base (7) enters next step drawing step.
2. a kind of upward drawing method for copper alloy wire blank according to claim 1 is characterized in that, the temperature setting of described copper alloy liquid (2) is set to its melting temperature and adds 50～100 ℃.
3. a kind of upward drawing method for copper alloy wire blank according to claim 1 is characterized in that, the hydraulic pressure of cold water (4) is 2～4MPa.
4. a kind of upward drawing method for copper alloy wire blank according to claim 1 is characterized in that, the hauling speed of described draw-gear (13) is 500～1500mm/min.
5. a kind of upward drawing method for copper alloy wire blank according to claim 1 is characterized in that, described mode of traction is for upwards suspending after the traction, downward counter pushing away again, and upwards traction is carried out so repeatedly again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010562549 CN102476177B (en) | 2010-11-29 | 2010-11-29 | Upward drawing method for copper alloy wire blank |
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| CN 201010562549 CN102476177B (en) | 2010-11-29 | 2010-11-29 | Upward drawing method for copper alloy wire blank |
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| CN102476177A CN102476177A (en) | 2012-05-30 |
| CN102476177B true CN102476177B (en) | 2013-05-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050188B (en) * | 2012-12-21 | 2015-04-15 | 江苏中容铜业有限公司 | Method for producing oxygen-free copper alloy-clad aluminum conductor for use in communication |
| CN107553064A (en) * | 2016-06-30 | 2018-01-09 | 张家港市金港镇宏业海绵复合厂 | Copper phosphorus board production technology |
| CN107186188B (en) * | 2017-03-06 | 2020-05-26 | 灏明有限公司 | Cold-drawing processing equipment and processing method thereof |
| CN111842825B (en) * | 2020-08-04 | 2022-01-04 | 江苏尚恩新材料科技有限公司 | Vertical continuous casting and drawing equipment for ultra-long high-temperature alloy pipe and use method thereof |
| CN113857443B (en) * | 2021-09-28 | 2024-01-12 | 杭州奥宇金属制品有限公司 | Copper or copper alloy ultra-microfilament upward-guiding equipment and upward-guiding production process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653306A (en) * | 1983-12-14 | 1987-03-31 | Tubi Italia S.P.A. | Method for preparing tubular chills for continuous steel casting plants |
| WO2005028143A1 (en) * | 2003-09-24 | 2005-03-31 | Sumitomo Metal Industries, Ltd. | Continuous casting mold and method of continuous casting for copper alloy |
| CN2853232Y (en) * | 2005-11-23 | 2007-01-03 | 大连冶金结晶器有限公司 | Copper pipe of round blank crystallizer |
| CN201227684Y (en) * | 2008-06-06 | 2009-04-29 | 宁波华光不锈钢有限公司 | Continuous casting crystallizer with double side port nozzles |
| CN101515494A (en) * | 2008-02-20 | 2009-08-26 | 江阴市爱多伏科技有限公司 | Method for preparing continuous extrusion high-tech energy-saving copper bus |
-
2010
- 2010-11-29 CN CN 201010562549 patent/CN102476177B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653306A (en) * | 1983-12-14 | 1987-03-31 | Tubi Italia S.P.A. | Method for preparing tubular chills for continuous steel casting plants |
| WO2005028143A1 (en) * | 2003-09-24 | 2005-03-31 | Sumitomo Metal Industries, Ltd. | Continuous casting mold and method of continuous casting for copper alloy |
| CN2853232Y (en) * | 2005-11-23 | 2007-01-03 | 大连冶金结晶器有限公司 | Copper pipe of round blank crystallizer |
| CN101515494A (en) * | 2008-02-20 | 2009-08-26 | 江阴市爱多伏科技有限公司 | Method for preparing continuous extrusion high-tech energy-saving copper bus |
| CN201227684Y (en) * | 2008-06-06 | 2009-04-29 | 宁波华光不锈钢有限公司 | Continuous casting crystallizer with double side port nozzles |
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Effective date of registration: 20171212 Address after: 412000 days in Tianyuan District of Zhuzhou City, Hunan Province Road No. 959 building C3 new tech Valley Patentee after: Hunan Derun nonferrous materials Polytron Technologies Inc Address before: 412000 Hunan city of Zhuzhou province Changling Tianyuan District Industrial Park South of Zhuzhou nonferrous Welding Material Co. Ltd. Patentee before: Zhuzhou South-China Brazing & Soldering Materials Co., Ltd. |
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Effective date of registration: 20190308 Address after: 643000 No. 1 Danyang Street, Ziliujing District, Zigong City, Sichuan Province (Atlantic Welding Industrial Park A6-2 Plant) Patentee after: Sichuan Atlantic Delun Nonferrous Welding Material Technology Co., Ltd. Address before: 412000 Tianyi Avenue 959, Tianyuan District, Zhuzhou City, Hunan Province Patentee before: Hunan Derun nonferrous materials Polytron Technologies Inc |