CN1084794A - Noble metal or alloy micro shape composite filament manufacture method and device - Google Patents
Noble metal or alloy micro shape composite filament manufacture method and device Download PDFInfo
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- CN1084794A CN1084794A CN 92111281 CN92111281A CN1084794A CN 1084794 A CN1084794 A CN 1084794A CN 92111281 CN92111281 CN 92111281 CN 92111281 A CN92111281 A CN 92111281A CN 1084794 A CN1084794 A CN 1084794A
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Abstract
Noble metal or alloy micro shape composite filament manufacture method and device.The little shaped filaments manufacture method of noble metal or alloy, comprise noble metal or alloy hot extrusion or forge into bar, the bar side of rolling into silk, side's silk is cold drawn to be lenticular wire, noble metal or alloy flat filament and parent metal are rolling compound, composite wire material is cold drawn to be fine rectangular wire or fine rectangular wire, and compound fine rectangular wire or fine rectangular wire are cold drawn again to be micro shape composite filament.Made the rolling set composite of shaped filaments that is used to make noble metal or alloy micro shape composite filament, 3 rollers and 4 roll-type rotational drawing dies, and little shaped filaments mould.
Description
Noble metal or alloy micro shape composite filament manufacture method and device.The invention relates to composite special-shaped slivers processing method of noble metal or alloy and parent metal and device.
Noble metal and alloy wire are owing to good electric property is arranged, and be anti-oxidant, is widely used in microelectric technique, in 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 to microminiaturized, multiple stratification, thereby require the little shaped filaments material of noble metal.The noble metal micro shape composite filament used as little shape relay tip of computer keyboard contact and express elevator and program-controlled telephone has only the noble metal micro shape composite filament, just can make components and parts reach highly reliable, the requirement of low energy consumption, long-life, microminiaturization.These micro-special-shaped composite filament sizes are below 1mm, silk material minimum thickness ≠ 0.20mm, width 0.4mm, the cross section abnormal shape, the multiple layer of noble metal as thin as a wafer, mostly between 0.002～0.01mm, multiple layer position accuracy demand is high, so can't make this micro shape composite filament material with common processing method and equipment.US3498097 " wire drawing Apparatus and method for " proposes a kind of method that makes paired round roll rolled metal silk material with pressure roll, be that round metal line attenuate is an ellipse, oval wire rod subtracts the wide method that becomes thin round wire more again, this method is applicable to hard metal wire such as steel wire manufacturing, can not rolling composite filament, can not rolling special-shaped composite wire material.
The objective of the invention is to solve the processing method problem of noble metal micro shape composite filament, manufacture and design the required special silk material composite rolling device of processing technology, micro-special-shaped wire drawing die and micro-special-shaped silk mould.
Noble metal of being invented or alloy micro shape composite filament manufacture method and device are illustrated in conjunction with the accompanying drawings.Fig. 1 is the compound working procedure sketch, Fig. 2 is 3 roll-type wire drawing die sketches, Fig. 3 is 4 roll-type wire drawing die sketches, Fig. 4 is micro-special-shaped silk mould sketch, Fig. 5 is the concora crush module map of little shaped filaments mould, Fig. 6 is the side pressure module map of little shaped filaments mould, and Fig. 7 is module fixing rack figure, and Fig. 8 is the profiled roller schematic diagram of 4 roll-type wire drawing dies.Fig. 9 is example 1 a micro-special-shaped composite filament schematic cross-section, Figure 10 is example 2 micro-special-shaped composite filament schematic cross-sections, Figure 11 is example 3 micro-special-shaped composite filament schematic cross-sections, and Figure 12 is example 4 micro-special-shaped composite filament schematic cross-sections, and Figure 13 is example 5 micro-special-shaped composite filament schematic cross-sections.The micro-special-shaped composite filament manufacture method of noble metal of being invented or alloy, comprise noble metal and alloy hot extrusion or forge into bar, the rolling bar side of being silk, side's silk is cold drawn to be flat filament, noble metal or alloy flat filament and parent metal room temperature solid phase are rolling compound, finishing heat treatment, composite wire material is cold drawn to be fine rectangular wire or fine rectangular wire, compound fine rectangular wire or fine rectangular wire annealing are cold drawn to be the several operations of special-shaped silk, it is characterized in that: (1) 3 roll-types rotation drawing films (Fig. 2) by manufacturing on special-shaped wire drawing machine are flat filament with noble metal and the drawing of alloy side's silk; (2) noble metal flat filament (N) and parent metal billot (B) be on duo mill, and the silk material rolling set composite of room temperature solid phase (Fig. 1) composite rolling by manufacturing is composite wire material (C); (3) composite wire material (C) by manufacturing 3 rollers (Fig. 2) or 4 rollers (Fig. 3) formula wire drawing die cold drawn be fine rectangular wire or fine rectangular wire; (4) the four-roller type rotational drawing die (Fig. 8) of the micro-special-shaped silk mould (Fig. 4, Fig. 5, Fig. 6, Fig. 7) by manufacturing or roll fluting and distortion with compound fine rectangular wire or fine rectangular wire cold drawn be different shape, the micro-special-shaped composite wire material of the noble metal of all size (CM).Its specific practice is that (1) selects that impurity is few, slag inclusion is few for use, the few satisfactory noble metal of purity of bubble and alloy material in a vacuum frequently in the stove by vacuum refining, make φ 40～φ 80mm ingot casting, add hot extrusion behind the car surface or forge into the bar of φ 6～φ 9mm; Bar is rolled into side's silk of 4.5 * 4.5mm after annealing heat treatment; Side silk is cold drawn the making of 3 roll-type rotational drawing dies (Fig. 2) ≠ 1～2 * 4.5mm flat filament and the heat treatment of annealing by manufacturing on special-shaped wire drawing machine; (2) heat treated ≠ 1～2 * 4.5mm noble metal or alloy flat filament (N) and ≠ 4.5 * 36mm base material billot (B) the silk material rolling set composite of room temperature solid phase (Fig. 1) by manufacturing on φ 250 * φ 250mm duo mill of having annealed, the room temperature solid phase rolling compound be noble metal and the compound side of alloy thread (C) of ≠ 4～8 * 4.6mm; (3) after compound side silk deburring and the diffusion heat treatments on special-shaped wire drawing machine, 3 rollers by manufacturing or 4 roll-type rotational drawing dies (Fig. 2, Fig. 3), draw into ≠ 1.0 * 1.0mm fine rectangular wire or ≠ 0.5 * 0.9mm fine rectangular wire; (4) after the annealing ≠ 1.0 * 1.0mm or ≠ 0.5 * 0.9mm noble metal or alloy threadlet material by manufacturing little shaped filaments mould (Fig. 4, Fig. 5, Fig. 6, Fig. 7) or roll fluting and the four-roller type rotational drawing die (Fig. 8) that is out of shape with compound fine rectangular wire or fine rectangular wire cold drawn be the noble metal micro shape composite filament material (CM) of different shape, all size.The micro-special-shaped composite filament manufacturing installation of the noble metal of designed manufacturing or alloy, it is characterized in that employed silk material room temperature solid phase composite rolling device by lead the having an of device (1) and a pair of rotation ≠ 4 * 4.6mm(dark * wide) roll (2) of groove forms (Fig. 1); 3 rollers of designed manufacturing or 4 roll-type rotational drawing dies (Fig. 2 or Fig. 3) by concora crush roller (3), side pressure roller (4), depress spiro rod (5), press rods (6), cushion block (7), depress dial (8), mould bases (9) is formed, 3 roll-types have 2 pairs of concora crush rollers, 1 pair of side pressure edger roll, dimension of roller φ 35 * 250mm, 1 vertical side pressure limit roll is contained in the mould bases centre position.The 2 pairs of horizontal concora crush rolls arrange respectively be contained in vertical side pressure roller before, after, four-roller type respectively has 2 pairs of concora crush rollers and side pressure edger roll, dimension of roller φ 25 * φ 15mm, alternate with each other being installed in the mould bases, when compound side's filament winding on the dish of wire drawing axle, when drawing from right to left, by first pair of concora crush roller reduced thickness once, when entering vertical side pressure roller, width with regard to attenuate once, when entering down a pair of concora crush roller again, attenuate is once again for thickness, when entering next vertical side pressure roller again, width with regard to attenuate once, draw repeatedly can obtain ≠ 1.0 * 1.0mm fine rectangular wire or ≠ 0.5 * 0.9mm fine rectangular wire; The micro-special-shaped silk mould (Fig. 4, Fig. 5, Fig. 6, Fig. 7) of noble metal or alloy micro shape composite filament manufacturing installation is by 2 pairs of concora crush modules (9), totally 6 modules of 1 vertical side pressure module (10) is fixed by bolts to upward composition of mould bases (11), the limit chamfering a of every module is 12～15 °, and per 2 templates are formed one 24～30 ° die orifice tapering altogether; Deformed area when becoming wire drawing, concora crush module (Fig. 5) side of placing below can have 1 or 2 dark 0.05mm simultaneously, the semi arch sulculus (12) of wide 0.1mm is as the leg deformed area of little shaped filaments material, arc groove or flat-top groove (13) that concora crush module (Fig. 5) side of placing above can have 1 R2～6mm become circular arc end face or trapezoidal end face deformed area, one end of side pressure module (Fig. 6) has thickness～1/2, the inclined-plane of length～2/5 (14), 2 side pressure modules can become scissor to place or parallel placement in the inclined-plane relatively, become trapezoidal or the rectangle deformed area, concora crush module and side pressure module are orthogonal, after the module assembling, just in time form square " mouth " from a left side or right apparent time, trapezoidal "
" or rectangle "
" the mould pass; when after the annealing ≠ 1.0 * 1.0mm or ≠ 0.5 * 0.9mm noble metal or alloy wire on the wire drawing dish from right to left by little shaped filaments mould when cold drawn (Fig. 4); enter first pair of concora crush mould; the leg of 1 or 2 wide 0.1mm of high 0.05mm just appears in silk material below; and arc surface or the trapezoidal leptoprosopy of R ≠ 2～6mm appear in top simultaneously; a material reduced thickness, when the silk material enters the side pressure module of scissor placement or placing flat, 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, wide 0.1mm leg, silk material top is keeping R ≠ 2～6mm arc surface or trapezoidal leptoprosopy, thickness is attenuate again, the Zola once draws once on the right side like this, whenever draws once module is close to once, just can be drawn to the silk material specification and the size of the little shaped filaments material of finished product repeatedly several times; The four-roller type rotational drawing die of roll fluting and distortion also can be as the mould (Fig. 8) of noble metal or the micro-special-shaped composite filament of alloy, its method is to get on the bus at the lower roll of the concora crush roll of four-roller type rotational drawing die to make 1 or 2 dark 0.05mm, the sulculus of wide 0.1mm, 1 R2mm arc groove of top roll car system (15), 2 vertical side pressure roller cars become a big little tapering roller, its tapering is with finished silk material tapering unanimity (16), when 1.0 * 1.0mm composite filament on the dish of wire drawing axle by the four-roller type rotational drawing die when cold drawn, by first pair of concora crush roller, 1 or 2 high 0.05mm just appears in silk material below, the leg of wide 0.1mm, the R2mm arc surface appears in the top, silk material reduced thickness once simultaneously, when entering the vertical side pressure roller of band tapering, trapezoidal grade for hypotenuse appears in silk material both sides, width subtracts once narrow simultaneously, except that keeping 1 or 2 leg and top, the below keeps the R2 arc surface when entering the 2nd pair of concora crush roller, silk material thickness is attenuate for the second time, width subtracts narrowly once more when entering the 2nd vertical side pressure roller, repeats just can be drawn to micro shape composite filament several times the specification and the size of finished product.
Advantage of the present invention is: 1, the size of micro shape composite filament material is even, easily control; 2, micro shape composite filament length can be very long (the longest reach 300 meters); 3, different materials, the shaped filaments of different size shape, equipment therefor equipment is identical on compound working procedure and middle cold drawn operation, can reduce the production quantity of special special-shaped mould, thereby greatly reduces the shape composite filament manufacturing cost; 4, can form the batch trial-production of micro shape composite filament material.
Embodiment:
Through above-mentioned noble metal of inventing or the micro-special-shaped composite filament manufacture method of alloy, through the noble metal or the micro-special-shaped composite filament manufacturing installation of alloy (silk material room temperature solid phase composite rolling device, 3 rollers or 4 roll-type rotational drawing dies, little shaped filaments mould, concora crush roll fluting and vertical side pressure roller are 4 roll-type rotational drawing dies of tapering roller) of designed manufacturing, make the little shaped filaments product of following noble metal or alloy:
Example 1, the special-shaped composite wire material that Au/Cu ≠ 0.6 * 0.56mm computer keyboard switch contact is used, silk material schematic cross-section is seen Fig. 9.
Example 2, the Au/PdAg50 ≠ special-shaped composite wire material in 0.2 * 1.0mm midget relay contact, silk material schematic cross-section is seen Figure 10.
The local compound special-shaped silk material in example 3, Au/AgCe0.5 ≠ 0.35 * 1.0mm midget relay contact, a silk material schematic cross-section is seen Figure 11.
Example 4, PdAg50/Cu-Ni ≠ 0.5 * 0.6～0.7mm express elevator relay contact shape composite filament material, silk material schematic cross-section is seen Figure 12.
Example 5, Au/PdAg70 ≠ 0.2 * 0.5mm program-controlled telephone midget relay contact shape composite filament material, silk material schematic cross-section is seen Figure 13.
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 (7)
1, the micro-special-shaped composite filament manufacture method of noble metal or alloy, comprise noble metal and alloy hot extrusion or forge into bar, rolling bar Cheng Fangsi, side's silk is cold drawn to be flat filament, noble metal or alloy flat filament and parent metal room temperature solid phase are rolling compound, finishing heat treatment, and composite wire material is cold drawn to be fine rectangular wire or fine rectangular wire, compound fine rectangular wire or fine rectangular wire annealing are cold drawn to be the several operations of shaped filaments, it is characterized in that:
(1) 3 roll-type rotational drawing dies (Fig. 2) by manufacturing are flat filament with noble metal and the drawing of alloy side's silk on special-shaped wire drawing machine; (2) noble metal flat filament (N) and parent metal billot (B) are on duo mill, and by the silk material rolling set composite of room temperature solid phase (Fig. 1) of manufacturing, composite rolling is composite wire material (C); (3) composite wire material (C) by manufacturing 3 rollers (Fig. 2) or 4 rollers (Fig. 3) rotational drawing die cold drawn be fine rectangular wire or fine rectangular wire; (4) little shaped filaments shaping dies (Fig. 4 by manufacturing, Fig. 5, Fig. 6, Fig. 7) or 4 roll-type rotational drawing dies (Fig. 8) of roller fluting and distortion with compound fine rectangular wire or fine rectangular wire cold drawn be the noble metal micro shape composite filament material (CM) of different shape, all size.
2, according to described noble metal of claim 1 or alloy micro shape composite filament manufacture method, it is characterized in that (1) is few with impurity, slag inclusion is few, the few satisfactory noble metal of purity of bubble or alloy material in a vacuum frequently in the stove by vacuum refining, make φ 40～φ 80mm ingot casting, add hot extrusion behind the car surface or forge into the bar of φ 6～φ 9mm; Bar is rolled into side's silk of 4.5 * 4.5mm after annealing heat treatment; Side silk is cold drawn the making of 3 roll-type rotational drawing dies (Fig. 2) ≠ 1～2 * 4.5mm flat filament and the heat treatment of annealing by manufacturing on special-shaped wire drawing machine; (2) heat treated ≠ 1～2 * 4.5mm noble metal or alloy flat filament (N) and ≠ 4.5 * 36mm base material billot (B) the silk material rolling set composite of room temperature solid phase (Fig. 1) by manufacturing on φ 250 * φ 250mm duo mill of having annealed, the room temperature solid phase rolling compound be noble metal and the compound side of alloy thread (C) of ≠ 4～8 * 4.6mm; (3) after compound side silk deburring and the diffusion heat treatments on special-shaped wire drawing machine, 3 rollers by manufacturing or 4 roll-type rotational drawing dies (Fig. 2, Fig. 3), draw into ≠ 1.0 * 1.0mm fine rectangular wire or ≠ 0.5 * 0.9mm fine rectangular wire; (4) after the annealing ≠ 1.0 * 1.0mm or ≠ 0.5 * 0.9mm noble metal or alloy threadlet material by manufacturing little shaped filaments mould (Fig. 4, Fig. 5, Fig. 6, Fig. 7) or roll fluting and the four-roller type rotational drawing die that is out of shape with compound fine rectangular wire or fine rectangular wire cold drawn be the noble metal micro shape composite filament material (CM) of different shape, all size.
3, according to described noble metal of claim 1 or the micro-special-shaped composite filament manufacturing installation of alloy, it is characterized in that 1, the rolling set composite of (2) operation employed silk material room temperature solid phase by lead the having an of device (1) and a pair of rotation ≠ 4 * 4.6mm(dark * wide) roll (2) of groove forms (Fig. 1).
4, according to described noble metal of claim 1 or the micro-special-shaped composite filament manufacturing installation of alloy, it is characterized in that 3 roll-types of manufacturing or 4 roll-type rotational drawing dies (Fig. 2 or Fig. 3) are by concora crush roller (3), side pressure roller (4), depress spiro rod (5), press rods (6), cushion block (7), depress dial (8), mould bases (9) is formed, three-roller type has 2 pairs of concora crush rollers, 1 pair of side pressure edger roll, dimension of roller φ 35 * 20mm, one vertical side pressure limit roll is contained in the mould bases centre position, the two pairs of horizontal concora crush rolls arrange respectively be contained in vertical side pressure roller before, after, four-roller type respectively has 2 pairs of concora crush rollers and side pressure edger roll, dimension of roller φ 25 * 15mm, alternate with each other being installed in the mould bases, when composite filament on the dish of wire drawing axle, when drawing from right to left, during by first pair of concora crush roller, reduced thickness once, width just subtracts once narrow when entering vertical side pressure roller, when going into down a pair of concora crush roller in the time of again, attenuate is once again for thickness, when entering next vertical side pressure roller again width subtract again once narrow, draw repeatedly can obtain ≠ 1.0 * 1.0mm fine rectangular wire or ≠ 0.5 * 0.9mm fine rectangular wire.
5, according to described noble metal of claim 1 or the micro-special-shaped composite filament manufacturing installation of alloy, the little shaped filaments mould (Fig. 4 that it is characterized in that manufacturing, Fig. 5, Fig. 6, Fig. 7) by 2 pairs of concora crush modules (9), 1 vertical side pressure module (10), 6 modules are fixed by bolts to mould bases (11) and go up composition, the limit chamfering a of 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. 5) side of placing below can have 1 or 2 dark 0.05mm simultaneously, the semi arch sulculus (12) of wide 0.1mm is as the leg deformed area that makes the shaped filaments material, arc groove or flat-top groove (13) that the concora crush module side of placing above can have 1 R2～6mm become circular arc end face or trapezoidal end face deformed area, one end of side pressure mold pressing piece (Fig. 6) has thickness～1/2, the inclined-plane of length～2/5 (14), 2 side pressure modules can become scissor to place or parallel placement in the inclined-plane relatively, become trapezoidal or the rectangle deformed area, after the module assembling, just in time form " mouth " square from a left side or right apparent time;
" trapezoidal or "
" the mould hole shape of rectangle.
6, according to claim 1 and 5 described noble metals or the little shaped filaments manufacture method of alloy, it is characterized in that carrying out 1, (4) during operation when after the annealing ≠ 1.0 * 1.0mm or ≠ 0.5 * 0.9mm noble metal or alloy wire on the wire drawing dish from right to left by the shaped filaments mould when cold drawn (Fig. 4), 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 arc surface 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 0.1mm, silk material top is keeping arc-shaped surface or the trapezoidal leptoprosopy reduced thickness of R ≠ 2～6mm, the Zola once draws once on the right side like this, whenever draws once module is close to once, just can be drawn to the silk material at last the specification and the size of the micro-special-shaped silk of finished product material repeatedly several times.
7, according to claim 1 and 2 described noble metals or the micro-special-shaped composite filament manufacturing installation of alloy, it is characterized in that carrying out 1(4) during operation, the roll fluting of manufacturing and four rod formula rotational drawing dies (Fig. 8) of distortion, the lower roll of the concora crush roller system of getting on the bus 1 or 2 dark 0.05mm, the sulculus of wide 0.1mm, a R2mm arc groove of top roll car system (15), 2 vertical side pressure roller cars become a big little tapering roller, its tapering is with finished silk material tapering unanimity (16), when cold drawn by four-roller type rotation drawing film on the dish of wire drawing axle ≠ 1.0 * 1.0mm composite filament, during by the 1st pair of concora crush roller, 1 or 2 high 0.05mm just appears in silk material below, the leg of wide 0.1mm, the arc-shaped surface of R2mm 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, except that keeping 1 or 2 leg and top, the below keeps the R2 arc surface when entering the 2nd pair of concora crush roller, 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, repeats just micro shape composite filament to be drawn to several times the specification and the size of finished product.
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 true CN1084794A (en) | 1994-04-06 |
| CN1042403C CN1042403C (en) | 1999-03-10 |
Family
ID=4945260
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042403C (en) |
Cited By (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 |
| CN106807750A (en) * | 2016-12-27 | 2017-06-09 | 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 |
| CN109663920A (en) * | 2018-12-21 | 2019-04-23 | 中国航空制造技术研究院 | A kind of laminated construction solid phase increasing material manufacturing method |
| 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 |
Family Cites Families (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
Cited By (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 |
| CN106807750A (en) * | 2016-12-27 | 2017-06-09 | 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 |
| CN109663920A (en) * | 2018-12-21 | 2019-04-23 | 中国航空制造技术研究院 | A kind of laminated construction solid phase increasing material manufacturing method |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN1042403C (en) | 1999-03-10 |
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