CN1042403C - Micro shape composite filament of noble metal and alloy making method and device - Google Patents
Micro shape composite filament of noble metal and alloy making method and device Download PDFInfo
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- CN1042403C CN1042403C CN92111281A CN92111281A CN1042403C CN 1042403 C CN1042403 C CN 1042403C CN 92111281 A CN92111281 A CN 92111281A CN 92111281 A CN92111281 A CN 92111281A CN 1042403 C CN1042403 C CN 1042403C
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Abstract
The present invention relates to a method and a device for manufacturing micro special-shaped composite wire of noble metal or alloy. The method for manufacturing micro special-shaped composite wire of noble metal or alloy comprises that noble metal or alloy is made into bar stock; the bar stock is rolled into square wire; the square wire is drawn into flat wire; the flat wire of noble metal or alloy is rolled with base metal to be composite; the composite wire is cold-drawn into thin square wire or thin rectangular wire; the composite thin square wire or thin rectangular wire is cold-drawn into micro special-shaped composite wire. A special-shaped wire rolling and combining device for manufacturing micro special-shaped composite wire of noble metal or alloy, a rotary wire drawing die with three or four rollers, and a forming die for micro special-shaped wire are manufactured.
Description
Produce the drawing mould of micro-special-shaped silk of noble metal or alloy or composite filament.The present invention relates to the micro-special-shaped mould wiry of drawing.
Noble metal and alloy wire are owing to there is good electric property, and non-oxidizability is widely used in microelectric technique, mechanics of communication, the electronic computer technology, as components and parts such as contact, contacts.In order to reduce manufacturing cost, reduce noble metal dosage, components and parts progressively develop, thereby require noble metal or little shaped filaments material of alloy or composite wire material to multiple stratification, microminiaturization.As the computer keyboard contact, require near positive square noble metal composite wire material, the express elevator relay contact requires the micro-special-shaped silk of 1 leg of ladder type band material, the program controlled telephone relay tip requires the micro-special-shaped noble metal composite wire material of arc 1 leg of ball crown type band, have only little different silk of noble metal or composite wire material just can make components and parts reach highly reliable, the requirement of low energy consumption, long-life, microminiaturization.These micro-special-shaped composite filaments, size below 1mm, silk material minimum thickness pact=0.20mm, width 0.4mm; Noble metal is answered layer as thin as a wafer, mostly between 0.002-0.01mm; Cross section abnormal shape, great majority also have 1 or 2 small embossments " leg ", and this protruding leg is to play to play the arc effect when silk material and components and parts welding, and temperature is improved in the local area, makes the localized metallic fusing, promotes the silk material to weld on components and parts.Obviously, these micro-special-shaped composite filaments do not manufacture with the common drawing equipment of making circular wire.General drawing mould mostly is drawing garden type or arc ball crown type silk is used, if will draw special-shaped silk, need a kind of shape to process a mold, multiple shape need be processed many molds, the Mould Machining difficulty of producing micro-special-shaped silk is bigger, many molds of processing different size shape are obviously cumbersome, and expense is big.U.S. Pat 3940964 is used for the composite filament processing method of electric contact, proposes to use heat treatment, and cold drawn special-shaped composite filament method is produced special-shaped composite filament.Therefore its cold drawn mold sections is round and the arc ball crown type, can only the production cross section is round and the composite filament arc ball crown type, can not the production cross section be the heterotypic material of the tape welding pin shape of square, rectangle, trapezoidal complexity.
Purpose of the present invention, be to improve the drawing mould of producing noble metal or micro-special-shaped silk of alloy or composite filament, make it after combination, can be according to cross section, the size of material require, by cold drawn method, draw out square, square type, ladder type, arc ball crown type or its combination and add the tape welding pin, the micro-special-shaped composite filament of different noble metal or alloy (or silk) material.
The drawing mould of the micro-special-shaped silk of production noble metal of being invented or alloy, its technical scheme is improved on the structure of general module or roll and compound mode, two kinds of drawing moulds have been made in invention, and its concrete structure and assemblage characteristic are illustrated in conjunction with the accompanying drawings.
Fig. 1 is drawing mould () schematic diagram of producing noble metal or micro-special-shaped silk of alloy or composite filament.
Fig. 2 is the concora crush module diagram of drawing mould ().
Fig. 3 is the side pressure module diagram of drawing mould ().
Fig. 4 is the module fixing rack schematic diagram of drawing mould ().
Fig. 5 is for producing drawing mould (two) schematic diagram of micro-special-shaped silk of noble metal or alloy or composite filament
Fig. 6 is 2 micro-special-shaped cross sectional representation of example
Fig. 7 is 3 micro-special-shaped cross sectional representation of example
Fig. 8 is 4 micro-special-shaped cross sectional representation of example
Fig. 9 is 5 micro-special-shaped cross sectional representation of example
Mark among the figure: concora crush module 1, side pressure module 2, mould bases 3, the semi arch sulculus 4 of concora crush module side, the arc groove of concora crush module side or flat-top groove 5, the inclined-plane 6 of side pressure module one end, above car the concora crush roller 7 of sulculus or garden arc groove, tapering roller 8 are arranged.
The drawing die of micro-special-shaped silk of production noble metal of being invented or alloy or composite filament has two kinds.
Produce the drawing mould () of micro-special-shaped silk of noble metal or alloy or composite filament, its technical scheme is that special-shaped silk mould is decomposed into the polylith module, open 1 or 2 half very small garden arc sulculuses at the side of 2 concora crush modules, as the leg deformed area, open 1 little garden deep-slotted chip breaker or flat-top groove at other 2 concora crush module sides, as garden arc end face or trapezoidal end face deformed area, then be split into the inclined-plane on 1 offside pressing mold piece, one end, 1 offside pressing mold piece is become scissor or parallel placement, can form trapezoidal or the rectangle deformed area, with 2 pairs of concora crush modules and the combination of 1 offside pressing mold piece, fix and just can constitute rectangle, trapezoidal, the micro-special-shaped shape silk drawing mould of spherical tape welding pin of arc or their assemblage zone leg, produce this module drawing mould () (Fig. 1 with regard to easier production noble metal or special-shaped silk of alloy or composite filament, Fig. 2, Fig. 3, Fig. 4), by 2 pairs of concora crush modules 1,1 vertical side pressure module 2,6 modules are fixed by bolts on the mould bases 3 to be formed, the limit chamfering α that it is characterized in that every module is 12-15 °, per 2 templates are formed one 24-30 ° die orifice tapering altogether, deformed area when becoming wire drawing, concora crush module (Fig. 2) side of placing below can have 1 or 2 dark 0.05mm simultaneously, the semicircular arc sulculus 4 of wide 0.1mm, as the leg deformed area that makes the shaped filaments material, arc groove or the flat-top groove 5 of 1 R=2-6mm can be opened in the sorrowful limit of concora crush module of placing above, become circular arc end face or trapezoidal end face deformed area, one end of side pressure module, at about 1/2 of thickness, about 2/5 place of length, have an inclined-plane 6,2 side pressure modules can become scissor to place or parallel placement in the inclined-plane relatively, become trapezoidal or the rectangle deformed area, 1 pair of concora crush module is put down face, put face for 1 pair in addition, 1 offside pressing mold piece is clipped in the middle of 2 pairs of concora crush modules, after the module assembling, from a left side or right apparent time, just in time form square, trapezoidal, or the mould pass of rectangle; When through the pact behind the heat-treatment of annealing=1.0 * 1.0mm or approximately the noble metal of=0.5 * 0.9mm or alloy silk or composite wire material on the wire drawing dish from right to left by drawing mould () when cold drawn (Fig. 1), enter first pair of concora crush module, 1 or 2 high 0.05mm just appears in silk material below, the leg of wide 0.10mm, and circular section or the trapezoidal leptoprosopy of R=2-6mm appear in top simultaneously, silk material reduced thickness, when the silk material enters the side pressure module of scissor or parallel placement, silk material cross section just forms isosceles trapezoid or rectangle, the silk material is during by the 2nd secondary concora crush mould, silk material below is still keeping 1 or 2 high 0.05mm, the leg of wide 0.01mm, silk material top is keeping arc-shaped surface or the trapezoidal leptoprosopy of R=2-6mm, reduced thickness, once draw once on the right side by drawing mould () Zola like this, whenever draw once module is close to once, just can be drawn to the required specification shape and size of the little shaped filaments material of finished product to precious metal or composite filament at last several times repeatedly.
Produce the drawing mould (=) of micro-special-shaped silk of noble metal or alloy or composite filament, its technical scheme is the little roll deformation with four roller wire drawing dies, get on the bus 1 or 2 sulculuses very small at several concora crush rollers, become the leg deformed area that draws special-shaped silk, other several concora crush rollers get on the bus the system 1 little garden arc groove, become arc end face deformed area, garden, with 1 vertical side pressure roller car tapering roller, form the trapezoidal distortion district, such 1 pair of concora crush roller and the combination of 1 offside pressure roller are fixed and just can be constituted complete special-shaped deformation of filament district.Produce the drawing mould (two) of micro-special-shaped silk of noble metal or alloy or composite filament, one group by the roll-type rotational drawing die is out of shape little roll 7,8 combine, it is characterized in that getting on the bus and be shaped on 1 or 2 dark 0.05mm at the lower roll of concora crush roller 7, the sulculus of wide 0.1mm, as the leg deformed area that makes special-shaped silk material, car is shaped on the garden arc groove of 1 R=2mm above the top roll, become arc end face deformed area, garden, 2 vertical side pressure roller cars become a big little tapering roller 8, its tapering is consistent with the tapering that the finished silk material requires, become the trapezoidal distortion district, the 1 pair of concora crush roller and offside pressure roller are formed the special-shaped silk modification district of complete shape, several (at least 2 pairs) concora crush roller and side pressure roller with spline structure are constituted with a kind of micro-special-shaped silk of shape or the drawing mould (two) of composite filament.When the pact behind the heat-treatment of annealing=1.0 * 1.0mm noble metal or alloy silk or composite wire material on the wire drawing dish by the roll-type rotational drawing die when cold drawn, during by the 1st pair of concora crush roller, 1 or 2 high 0.05mm just appear in silk material below, the leg of wide 0.1mm, the circular section of R=2mm appears in the top, silk material reduced thickness once simultaneously, when entering the vertical side pressure roller of band tapering, hypotenuses such as silk material both sides appearance, width subtracts once narrow simultaneously, when entering the 2nd pair of concora crush roller, keep the R=2mm arc surface except that the below keeps 1 or 2 leg and top, silk material thickness is attenuate for the second time, when entering the vertical side pressure roller of the 2nd pair of band tapering, width subtracts narrow once more, just repeats several times noble metal or alloy silk or composite wire material to be drawn to the specification shape and size that the micro-special-shaped silk of finished product requires.
The good effect of invention: embodiment
Make drawing mould () or (two) of micro-special-shaped silk of above-mentioned production noble metal of inventing or alloy or composite filament, and used cold drawn following noble metal or the micro-special-shaped silk of the alloy product made of drawing mould () or (two):
1, Au/Cu is compound, and sectional dimension is=0.6 * 0.56mm approximately, multiple layer thickness 0.02mm, the special-shaped composite wire material of the rectangle that the computer keyboard switch contact is used.
2, Au/PdAg5 is compound, and sectional dimension is=0.2 * 1.0mm approximately, multiple layer thickness 0.01mm, and cross sectional shape is that rectangle adds spherical 2 legs (Fig. 6) of being with of arc, midget relay contact shape composite filament material.
3, Au/AgCe0.5 is compound, sectional dimension approximately=0.35 * 1.0, and multiple layer thickness 0.01mm, cross sectional shape is that rectangle adds spherical 2 legs (Fig. 7) of being with of arc, the midget relay contact is with local compound special-shaped silk material.
4, PdAg50/Cu-Ni is compound, and sectional dimension is=0.5 * 0.6-0.7mm approximately, multiple layer thickness 0.3mm, and cross sectional shape is 1 leg of ladder type band (Fig. 8), express elevator relay contact shape composite filament material.
5, Au/PdAg70 is compound, and sectional dimension is=0.2 * 0.5mm approximately, multiple layer thickness 0.01mm, and cross sectional shape is 1 leg of arc ball crown type band (Fig. 9), the special-shaped composite wire material in program-controlled telephone midget relay contact.
With the drawing mould of micro-special-shaped silk of the production noble metal of being invented or alloy or composite filament (once) or (two) more successfully can from draw out approaching square, 1 leg of ladder type band, arc ball crown type band 1 or 2 legs, square types add complex-shaped, different noble metal or micro-special-shaped of alloy or composite wire materials such as 2 legs of arc ball crown type band.These micro-special-shaped precious metal or composite wire material are used as the computer keyboard switch contact, the miniature slider material of components and parts such as midget relay switch contact.These micro-special-shaped silks, the below, cross section has 1 or two small embossment legs mostly, and this protruding leg is to play to play the arc effect when silk material and components and parts welding, and temperature is improved in the local area, makes the localized metallic fusing, promotes the silk material to weld on components and parts.
Advantage of the present invention is: 1, mfg. moulding die and finishing mould are easy, and 2, die life is long, 3.The shaped filaments that can draw the plurality of specifications that shape is similar, the sectional area size is different on same secondary mould is come, can realize one module multiple usages, 4, to make the micro-special-shaped silk of noble metal comparatively easy, reduced the manufacturing cost of micro-special-shaped silk, 5, realized the mass production of the micro-special-shaped silk of noble metal.
Can make Ag/Cu with method and apparatus of the present invention, Ag/Cu-Ni, AgCe/Cu, AgCe/Sn, Au/Cu, Au/AgCe, Au/PdAg50, Au/PdAg70, PdAg50/Cu, the micro-special-shaped composite wire material of PdAg50/Cu-Ni noble metal.Can also make the little shaped filaments material of noble metal or alloy (needn't pass through compound working procedure).The invention is not restricted to the foregoing description.
Claims (2)
1, produce the drawing mould () of micro-special-shaped silk of noble metal or alloy or composite filament, by 2 pairs of concora crush modules (1), 1 vertical side pressure module (2), 6 modules are fixed by bolts to mould bases (3) and go up composition, the limit chamfering α that it is characterized in that every module is 12-15 °, per 2 templates are formed one 24-30 ° die orifice tapering altogether, deformed area when becoming wire drawing, the concora crush module side of placing below can have 1 or 2 dark 0.05mm simultaneously, the half garden arc sulculus (4) of wide 0.1mm, as the leg deformed area that makes the shaped filaments material, the concora crush module side of placing above can have arc groove or the flat-top groove (5) of 1 R=2-6mm, become circular arc end face or trapezoidal end face deformed area, one end of side pressure mold pressing piece, at about 1/2 of thickness, about 2/5 place of length, have an inclined-plane (6), 2 side pressure modules can become scissor to place or parallel placement in the inclined-plane relatively, become trapezoidal or the rectangle deformed area, and 1 pair of concora crush module is put down face, put face for 1 pair in addition, 1 offside pressing mold piece is clipped in the middle of 2 pairs of concora crush modules, after the module assembling, from a left side or right apparent time, just in time form square, trapezoidal, or the mould hole shape of rectangle.
2, produce the drawing mould (two) of micro-special-shaped silk of noble metal or alloy or composite filament, the little roll (7 of rotation by one group of distortion, 8) combine, it is characterized in that getting on the bus and be shaped on 1 or 2 dark 0.05mm at concora crush roller (7), the sulculus of wide 0.1mm, as the leg deformed area that makes the shaped filaments material, another above concora crush roller car be shaped on the garden arc groove of 1 R=2mm, become dome facial disfigurement district, vertical side pressure roller car becomes a big little tapering roller (8), the tapering that its tapering and finished silk material require is consistent, becomes the trapezoidal distortion district, and the 1 pair of concora crush roller and 1 offside pressure roller are formed the shaped filaments deformed area of complete shape.Several to (at least 2 pairs) concora crush roller and the combination of side pressure roller with spline structure, constitute the micro-special-shaped silk of same shape or the drawing mould (two) of composite filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92111281A CN1042403C (en) | 1992-09-30 | 1992-09-30 | Micro shape composite filament of noble metal and alloy making method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92111281A CN1042403C (en) | 1992-09-30 | 1992-09-30 | Micro shape composite filament of noble metal and alloy making method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084794A CN1084794A (en) | 1994-04-06 |
| CN1042403C true CN1042403C (en) | 1999-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92111281A Expired - Fee Related CN1042403C (en) | 1992-09-30 | 1992-09-30 | Micro shape composite filament of noble metal and alloy making method and device |
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| CN (1) | CN1042403C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564738B (en) * | 2009-06-08 | 2011-06-22 | 安徽鑫科新材料股份有限公司 | Machining process of directly pulling steel round rope into flat rope |
| CN105499267A (en) * | 2016-02-15 | 2016-04-20 | 中钢集团郑州金属制品研究院有限公司 | Forming method of scraper ring flat steel belt used for piston ring |
| CN106807750B (en) * | 2016-12-27 | 2019-03-29 | 上海大趋金属科技有限公司 | A kind of forming method of tiny special-shaped composite connection point strip material |
| CN108435811A (en) * | 2018-03-29 | 2018-08-24 | 西北有色金属研究院 | A kind of metal ultra-fine silk draw-off gear and degradable metal ultrafine wire Hubbing method |
| CN109663920B (en) * | 2018-12-21 | 2020-12-11 | 中国航空制造技术研究院 | Solid-phase additive manufacturing method of laminated structure |
| CN113231795A (en) * | 2021-05-17 | 2021-08-10 | 上海大趋金属科技有限公司 | Forming method of micro-special-shaped composite strip with pointed top shape |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940964A (en) * | 1974-10-01 | 1976-03-02 | Matsushita Electric Industrial Co., Ltd. | Method for making a clad wire for an electric contact |
-
1992
- 1992-09-30 CN CN92111281A patent/CN1042403C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940964A (en) * | 1974-10-01 | 1976-03-02 | Matsushita Electric Industrial Co., Ltd. | Method for making a clad wire for an electric contact |
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| CN1084794A (en) | 1994-04-06 |
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Address after: Walnut, two ring road, Yunnan, Kunming Patentee after: Guiyan Platinum Industry Co., Ltd. Patentee before: Kunming Institute of Precious Metals |
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