CN102489969A - Preparation method and continuous production and forming device of precision compound narrow band - Google Patents
Preparation method and continuous production and forming device of precision compound narrow band Download PDFInfo
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- CN102489969A CN102489969A CN2011104257444A CN201110425744A CN102489969A CN 102489969 A CN102489969 A CN 102489969A CN 2011104257444 A CN2011104257444 A CN 2011104257444A CN 201110425744 A CN201110425744 A CN 201110425744A CN 102489969 A CN102489969 A CN 102489969A
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Abstract
The invention discloses a preparation method and a continuous production and forming device of a precision compound narrow band. The key point of the invention is as follows: the preparation method comprises the following process steps: (1) shaping before compounding; (2) cleaning and deoiling before compounding; (3) annealing before compounding; (4) performing surface treatment before compounding; (5) compounding: mutually superposing and positioning two metal strips after surface treatment on a take-up and pay-off device, heating a forming mold to 850 DEG C-900 DEG C under a protective atmosphere condition of argon, nitrogen or hydrogen, performing momentary liquid-phase diffusion welding, and forming a metallurgical bonding surface for compounding; and performing precision compound narrow band forming on a continuous compound strip (6). According to the preparation method disclosed by the invention, large-batch production can be realized by utilizing a diffusion eutectic compounding technology and a precision rolling method, a product is high in bonding strength, a compound layer is good in consistency, and precious metals are effectively saved.
Description
Technical field
The present invention relates to the manufacturing approach of electric equipment products contact, be meant the preparation method of the compound arrowband of a kind of precision especially and produce shaped device continuously.
Background technology
The accurate complex layered materials of the expensive cheap metal of high-performance is that current high-tech is novel electrically contacts basic material, has good combination property, advantage of low manufacturing cost, has effectively practiced thrift noble metal.In numerous same type of material, take the course of its own, become the important materials of trying to be the first and develop in countries in the world, be widely used in fields such as electronics industry, space flight and aviation, traffic, the energy, communication, computer.
The present production technology in accurate compound arrowband has that roll-welding is compound, welding compound, rolling compound, blast is compound and soldering is compound etc.
Through retrieval, in the prior art, CN101777400A, silver/copper composite strip that the railway locomotive traction electrical apparatus is used and manufacturing approach thereof, the complex technique that is adopted is a band fluting back hot rolling combination process.Its shortcoming is: the band length of preparation is limited, is mostly that unistage type is compound, can not satisfy the demand of contact automation welding;
CN201645923U, a kind of steel copper composite strip, adopting combination process is cold rolling combination process.Its shortcoming is: compound equipment one-time investment is bigger, and technique controlling difficulty is big, and the formed product rate is low, is difficult to satisfy large-scale production;
CN101670365, a kind of preparation method of double lateral insert silver-copper composite strip, combination process is the furnace brazing combination process through interpolation scolder mode;
CN1971790, the processing technology of a kind of silver/copper/iron composite strip material, employing be the hot rolling combination process, this method exists the finished material rate lower equally, thereby makes the materials processing expense higher;
The combined positioning method that CN1203151, micro-special-shaped contact web make has been introduced the positioner of special-shaped composite strip roll-welding combination process.This method exists defective to be: combined strength bination adopts the solid phase combination process more, and intensity is relatively poor, is difficult to satisfy electric needs.
To above problem, it is good to develop combined strength bination, and stock utilization is higher, and can satisfy large-scale production needs and long band combination process.
Summary of the invention
Content of the present invention is to the deficiency of prior art, and provides a kind of combined strength bination good, and stock utilization is higher, thereby and can disposable production >=80m satisfies the preparation method of the compound arrowband of a kind of precision of large-scale production needs.
Another object of the present invention is for above-mentioned preparation method a kind of continuous production shaped device to be provided.
For realizing first purpose of the present invention, technical scheme of the present invention is to include following operation:
(1) compound preceding shaping: respectively to major general's surface contact material strip material blank and plate of base material band blank; Through rolling, sub-cut; Through precision die sheet metal strip is drawn to required compound size and shape then, obtains surperficial contact material band and matrix material band respectively; Specifically can deciding of this required compound size and shape according to the concrete dimensional requirement of the accurate compound arrowband that produces; Usually can for: the thickness range of said surface electrical contact layer material is 0.03 millimeter ~ 1.5 millimeters, and width range is 1 millimeter ~ 10 millimeters.The thickness range of matrix material is 0.05 millimeter ~ 1.5 millimeters, 1 millimeter ~ 10 millimeters of width.Composite strip length is greater than 80 meters.
(2) compound preceding the cleaning deoiled: with the surperficial contact material band and the matrix material band of step 1 shaping, remove its surface and oil contaminant and oxide skin through the continuous acid-washing mode;
(3) compound preceding annealing:, under argon gas, nitrogen or hydrogen shield atmospheric condition, anneal with surperficial contact material band and the matrix material band after step 2 cleaning;
(4) compound front surface is handled: roughness Ra15 ~ Ra40 is arrived in the surface treatment of surperficial contact material band after step 3 heat treatment and matrix material band;
(5) compound: as in retractable cable mechanism,, and to pass through mould with the location that overlaps of the sheet metal strip after two surface treatments; Under argon gas, nitrogen or hydrogen shield atmospheric condition, mould is heated to 850 ℃ ~ 900 ℃, carry out instant liquid-phase diffusion welding and connect; Form the metallurgical binding face and compound; Form a continuous composite strip, this mould includes the upper die and lower die by the graphite moulding, and the upper die and lower die matched moulds cooperates the shaping mold cavity that constitutes a rectangle or concave character type;
(6) accurate compound arrowband moulding: in retractable cable mechanism, the composite strip with step 5 after compound carries out drawing or type rolls, and obtains accurate compound arrowband.
Further be provided with is that described retractable cable mechanism includes pay off rack at least, leads a position wheel and a take-up mechanism.
Further being provided with is that described step (2), (3) and (4) are all at the enterprising row of retractable cable mechanism.
Further being provided with is that described surperficial contact material is electrum, silver, silver alloy, siluer metal oxide.
Further being provided with is that described matrix material is copper and copper alloy.
Further setting is that the number of plies of the compound arrowband of described precision is two-layer or three layers
For realizing another object of the present invention; Technical scheme of the present invention is to include retractable cable mechanism, mould and mould heating arrangements; Described retractable cable mechanism includes pay off rack at least, leads a position wheel and a take-up mechanism; This mould includes the upper die and lower die by the graphite moulding; And the upper die and lower die matched moulds cooperate to constitute the shaping mold cavity of a rectangle or concave character type, described pay off rack with lead the position wheel and be positioned at the front end of mould, described take-up mechanism is positioned at the rear end of mould.
Further being provided with is that described mould heating arrangements is the open-type tube furnace.
The present invention prepared the thickness range of accurate compound arrowband surface electrical contact layer material be 0.03 millimeter ~ 1.5 millimeters, width range is 1 millimeter ~ 10 millimeters, length is greater than 80 meters.
Advantage of the present invention be the money base electrical contact belt with copper matrix band under the cooperation of continuous production shaped device of the present invention; Pass through High temperature diffusion; Form one deck silver-bearing copper eutectic layer at compound interface, thereby reach metallurgical binding, obtain product through precision rolling then.The band stratiform bond strength that this kind method obtains is high, and surface quality is good, the stratiform uniformity is even, is fit to produce in enormous quantities.
The present invention utilizes diffusion eutectic complex technique to add the precision rolling method to realize producing in enormous quantities, and the product bond strength is high, and the composite bed high conformity is effectively practiced thrift noble metal.
Below in conjunction with the Figure of description and the specific embodiment the present invention is done further introduction.
Description of drawings
Fig. 1 is the compound sketch map in accurate compound arrowband.
Fig. 2 is that accurate compound arrowband is with mould cross sectional shape sketch map 1.
Fig. 3 is that accurate compound arrowband is with mould cross sectional shape sketch map 2.
Fig. 4 is an accurate compound arrowband product cross section shape sketch map 1.
Fig. 5 is an accurate compound arrowband product cross section shape sketch map 2.
The specific embodiment
Through embodiment the present invention is carried out concrete description below; Only be used for the present invention is further specified; Can not be interpreted as the qualification to protection domain of the present invention, the technician in this field can make some nonessential improvement and adjustment to the present invention according to the content of foregoing invention.
The present invention discloses the compound narrow-band system Preparation Method of a kind of precision.As shown in Figure 1, two piece of tape that the surface has been handled well are passed through pay off rack 1, then through leading position wheel 2; Mould 3 after the entering resistance tube furnace indirect spreads compound; Form a two-layer composite strip, through guide wheel 4, band through take-up mechanism 5 with band neat on take-up reel; Pass through precision rolling then, obtain the special-shaped compound arrowband of finished product stratiform.The described mould of present embodiment includes the patrix 31 and counterdie 32 by the graphite moulding; And patrix 31 cooperates the shaping mold cavity that constitutes a rectangle (referring to Fig. 2) or concave character type (referring to Fig. 3) with counterdie 32 matched moulds; In addition; Present embodiment mould heating arrangements is preferably and is the open-type tube furnace, adopts radiation mode that mould is heated.
Embodiment one, with the AgNi0.15 wide strip of width 22mm, thickness 0.4, becomes one of the narrow strip of wide 3.9mm, thick 0.35mm through accurate itemize and precision rolling; With the CuNi10 wide strip of width 22mm, thickness 0.65mm, become one of the narrow strip of width 3.9mm, thickness 0.55mm through accurate itemize and precision rolling.Remove surface and oil contaminant through continuous ultrasound ripple cleaning and removing then, AgNi0.15 and CuNi10 are respectively through 600 ℃, 800 ℃.Carry out continuous heat, add protective atmosphere H2, take-up speed is 2.8m/min to 3m/min.Carry out surface treatment through the grinding belt machine respectively then; With two narrow strips after treatment; Be placed on respectively in the retractable cable mechanism, (referring to Fig. 2, mould is heated to 850 ℃, 875 or 900 ℃ with the rectangular opening mould of two piece of tape after through the tube type resistance furnace heating through leading position wheel; This mould is also claimed graphite boat), then with the speed of 2m/min with coil winding machine with the band after compound on take-up reel.Band after compound removes strip surface impurity through continuous ultrasound ripple cleaning and removing, passes through then
The speed of 650 ℃ of tubular type annealing furnaces, 4m/min is heat-treated (adding protective atmosphere H2); Band after the heat treatment is through the accurate compound arrowband (like Fig. 4) of the stratiform of accurate pass rolling width 4.0mm, thickness 0.7mm; Accurate compound arrowband removes surface and oil contaminant through continuous ultrasound ripple cleaning and removing again, closely neat on take-up reel, packing of the clean band after the cleaning.
Embodiment two, with the AgNi10 wide strip of width 20mm, thickness 0.35, become two of the narrow strips of wide 2.8mm, thick 0.3mm through accurate itemize and precision rolling; With the T2Cu wide strip of width 25mm, thickness 0.80mm, become one of the narrow strip of width 10mm, thickness 0.70mm through accurate itemize and precision rolling.Remove surface and oil contaminant through continuous ultrasound ripple cleaning and removing then, AgNi10 and T2Cu are respectively through 600 ℃, 650 ℃.Carry out continuous heat, add protective atmosphere H2, take-up speed is 2.8m/min to 3m/min.Carry out surface treatment through the grinding belt machine respectively then; With three narrow strips after treatment; Be placed on the payingoff mechanism respectively; Through leading the rectangular opening mould (mould is heated to 850 ℃ ~ 900 ℃) position wheel heats two piece of tape through tube type resistance furnace after, then with the speed of 1.5m ~ 2m/min with coil winding machine with the band after compound on take-up reel.Band after compound removes strip surface impurity through continuous ultrasound ripple cleaning and removing; Heat-treat (adding protective atmosphere H2) through the speed of 650 ℃ of tubular type annealing furnaces, 4m/min then; Band after the heat treatment is through the special-shaped compound arrowband (like Fig. 5) of the stratiform of accurate pass rolling width 10.0mm, thickness 0.6mm; Accurate compound arrowband removes surface and oil contaminant through continuous ultrasound ripple cleaning and removing again, closely neat on take-up reel, packing of the clean band after the cleaning.
The compound arrowband of precision of the present invention can be adjusted strip width, thickness, shape, multiple layer thickness according to different demands.
Claims (9)
1. the preparation method of the compound arrowband of precision is characterized in that: include following operation:
(1) compound preceding shaping: respectively to major general's surface contact material strip material blank and plate of base material band blank; Through rolling, sub-cut; Roll mould through type then the sheet metal strip type is rolled to required compound size and shape, obtain surperficial contact material band and matrix material band respectively;
(2) compound preceding the cleaning deoiled: with the surperficial contact material band and the matrix material band of step 1 shaping, remove its surface and oil contaminant and oxide skin through the continuous acid-washing mode;
(3) compound preceding annealing: with surperficial contact material band and the matrix material band after step 2 cleaning; Under argon gas, nitrogen or hydrogen shield atmospheric condition, 600 ~ 800 ℃, the speed of 2 ~ 3m/min is at the tubular type continuous annealing furnace; Heat-treat, eliminate material stress;
(4) compound front surface is handled: roughness Ra15 ~ Ra40 is arrived in the surface treatment of surperficial contact material band after step 3 heat treatment and matrix material band;
(5) compound: as in retractable cable mechanism,, and to pass through mould with the location that overlaps of the sheet metal strip after two surface treatments; Under argon gas, nitrogen or hydrogen shield atmospheric condition, mould is heated to 850 ℃ ~ 900 ℃, carry out instant liquid-phase diffusion welding and connect; Form the metallurgical binding face and compound; Form a continuous composite strip, this mould includes the upper die and lower die by the graphite moulding, and the upper die and lower die matched moulds cooperates the shaping mold cavity that constitutes a rectangle or concave character type;
(6) accurate compound arrowband moulding: in retractable cable mechanism, the composite strip with step 5 after compound carries out drawing or type rolls, and obtains accurate compound arrowband.
2. the preparation method of the compound arrowband of precision according to claim 1 is characterized in that: described retractable cable mechanism includes pay off rack at least, leads a position wheel and a take-up mechanism.
3. the preparation method of the compound arrowband of precision according to claim 1 is characterized in that: described step (2), (3) and (4) are all at the enterprising row of retractable cable mechanism.
4. the preparation method of the compound arrowband of precision according to claim 1 is characterized in that: described surperficial contact material is electrum, silver, silver alloy, siluer metal oxide.
5. the preparation method of the compound arrowband of precision according to claim 1 is characterized in that: described matrix material is copper and copper alloy.
6. the preparation method of the compound arrowband of precision according to claim 1 is characterized in that: the number of plies of the compound arrowband of described precision is two-layer.
7. the compound narrow-band system Preparation Method of precision according to claim 1; It is characterized in that: the thickness range of said surface electrical contact layer material is 0.03 millimeter ~ 1.5 millimeters; Width range is 1 millimeter ~ 10 millimeters; The thickness range of matrix material is 0.05 millimeter ~ 1.5 millimeters, 1 millimeter ~ 10 millimeters of width, and composite strip length is greater than 80 meters.
8. the continuous production shaped device of the compound arrowband of precision; It is characterized in that: include retractable cable mechanism, mould and mould heating arrangements; Described retractable cable mechanism includes pay off rack at least, leads a position wheel and a take-up mechanism; This mould includes the upper die and lower die by the graphite moulding; And the upper die and lower die matched moulds cooperate to constitute the shaping mold cavity of a rectangle or concave character type, described pay off rack with lead the position wheel and be positioned at the front end of mould, described take-up mechanism is positioned at the rear end of mould.
9. the continuous production shaped device of the compound arrowband of a kind of precision according to claim 8 is characterized in that: described mould heating arrangements is the open-type tube furnace.
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| CN2011104257444A CN102489969A (en) | 2011-12-16 | 2011-12-16 | Preparation method and continuous production and forming device of precision compound narrow band |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106735811A (en) * | 2016-12-27 | 2017-05-31 | 上海大趋金属科技有限公司 | A kind of preparation method of arcuation interface tiny special-shaped composite connection point strip |
| CN109127732A (en) * | 2018-03-07 | 2019-01-04 | 上海大趋金属科技有限公司 | A kind of controlled atmosphere method hot rolling protective device for composite strip |
| CN110355533A (en) * | 2019-07-29 | 2019-10-22 | 东莞市中一合金科技有限公司 | A kind of preparation process of the continuous soldering composite material of copper-tin |
| CN111546015A (en) * | 2020-05-20 | 2020-08-18 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN112388313A (en) * | 2020-10-26 | 2021-02-23 | 郑州机械研究所有限公司 | Method and apparatus for producing composite strip |
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| CN101318286A (en) * | 2008-07-03 | 2008-12-10 | 温州宏丰电工合金有限公司 | Method of manufacturing penetration type side direction composite board band and mould hot-press arrangement thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735811A (en) * | 2016-12-27 | 2017-05-31 | 上海大趋金属科技有限公司 | A kind of preparation method of arcuation interface tiny special-shaped composite connection point strip |
| CN109127732A (en) * | 2018-03-07 | 2019-01-04 | 上海大趋金属科技有限公司 | A kind of controlled atmosphere method hot rolling protective device for composite strip |
| CN110355533A (en) * | 2019-07-29 | 2019-10-22 | 东莞市中一合金科技有限公司 | A kind of preparation process of the continuous soldering composite material of copper-tin |
| CN111546015A (en) * | 2020-05-20 | 2020-08-18 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN111546015B (en) * | 2020-05-20 | 2022-02-11 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN112388313A (en) * | 2020-10-26 | 2021-02-23 | 郑州机械研究所有限公司 | Method and apparatus for producing composite strip |
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Application publication date: 20120613 |