CN101281839B - Belt material for fused mass of fuse and manufacturing method thereof - Google Patents
Belt material for fused mass of fuse and manufacturing method thereof Download PDFInfo
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- CN101281839B CN101281839B CN2008100693885A CN200810069388A CN101281839B CN 101281839 B CN101281839 B CN 101281839B CN 2008100693885 A CN2008100693885 A CN 2008100693885A CN 200810069388 A CN200810069388 A CN 200810069388A CN 101281839 B CN101281839 B CN 101281839B
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Abstract
The present invention relates to a strip material for protective fuse and a manufacture method for the strip material; the cross section of the strip material comprises at least two separated copper or copper alloy bodies, with a silver or silver part component arranged between adjacent copper or copper alloy bodies, a silver copper alloy filler material for soldering is provided between the silver or silver alloy body and the copper or copper alloy body; the silver or silver alloy body and the copper or copper alloy body is soldered and fixed via the silver copper alloy filler material. In the present invention, silver or silver alloy is used for the part for fuse protective action, while copper or copper alloy is used for the conducting part that connects the circuit; therefore, the present invention can ensure safety of the electric device and circuit, and has positive effect to the development of high-grade protective fuse products. With the method provided in the present invention, the strip material can be produced easily at a low cost.
Description
Technical field
The present invention relates to a kind of accessory of fuse, particularly a kind of band and method for production thereof that is used for fused mass of fuse.
Background technology
Fuse is to utilize metallic conductor to be series in the circuit as melt, when overload or short circuit current when the melt, because of himself heating fuses, thereby divide deenergizing, a kind of electric elements of protection electric equipment and electrical network.
Melt is the key element of control operating chacteristics, and its material, size and dimension have determined operating chacteristics.Melt material is divided into low melting point and high-melting-point two classes.Low melting material such as lead and lead alloy, the low fusing easily of its fusing point, because its resistivity is bigger, so it is bigger to make the sectional dimension of melt, the metal vapors that produces during fusing is more, only is applicable to the fuse of low breaking capacity.Materials with high melting point such as copper, silver, its fusing point height is not easy fusing, but because its resistivity is lower, and when certain resistance, required sectional area is less, and the metal vapors that produces during fusing is few, helps arc extinguishing, is applicable to the fuse of high breaking capacity.
The silver melt has good ability when cut-offfing strong short circuit current, and patina stable in properties, anti-oxidant, decay resistance is superior, in use resistance value is not easy to change, fusing point is constant, helping the stability and the fail safe of holding circuit, is the critical material of big electric current, high reliability fuse.But, because silver-colored melt cost height is adopted in costing an arm and a leg of silver.
Adopt at present silver with copper by chimeric method as the melt band, though can reduce the cost of material, but chimeric method needs expensive precision equipment, complex manufacturing technology, the band quantity of chimeric silver is many more on copper strips, manufacture craft is complicated more, the cost of manufacture height, and the interface between silver and the copper is easy to generate crackle.In addition, this method makes the embedding silver layer can only partly be embedded in (from cross section) on the copper matrix, and the fused mass of fuse with this band is made can not guarantee the operating chacteristics that fuse itself should possess, unstable properties.
Summary of the invention
The object of the invention has provided a kind of band that is used for fused mass of fuse.Use silver or silver alloy in the part of fuse protection effect, is connected the position use copper or the copper alloy of conduction with circuit, can fully guarantee the safety of electrical equipment and circuit, the development of high-grade fuse is had important facilitation.
Another object of the present invention has provided a kind of method of doing of fused mass of fuse band system, adopts the band of the inventive method preparation, and manufacture craft is simple, and production cost is low.
Realize that technical scheme of the present invention is:
The cross section of described band comprises at least two intersegmental copper that separates or copper alloy bodies, be provided with silver or silver alloy body between two sections copper of adjacent spaced-apart or the copper alloy body, be provided with the yellow gold scolder that is used to weld between silver or silver alloy body and copper or the copper alloy body, described silver or silver alloy body and copper or copper alloy body are fixing by the yellow gold scolder welding that is used to weld.
Described in the middle of being positioned at every section copper or the cross-sectional width of copper alloy body be 2～30mm, being positioned at the every section copper at two ends or the cross-sectional width of copper alloy body is 3～50mm, the cross-sectional width of every section silver or silver alloy body is 1～6mm, and the cross-sectional width of every section yellow gold scolder is 0.03mm～0.1mm.
The method of making above-mentioned band is:
1) copper or copper alloy body, silver or silver alloy body is alternate placed side by side, between copper or copper alloy body, silver or silver alloy body, sandwich the yellow gold scolder, copper or copper alloy body, silver or silver alloy body, yellow gold scolder together placed side by side clamped with metal fixture;
2) copper that will be clamped together with metal fixture or copper alloy body, silver or silver alloy body, yellow gold scolder are put into heating furnace, in vacuum or protective atmosphere (protective atmosphere is decomposed ammonia or hydrogen), be heated to 650 ℃～730 ℃, after keeping 70～75min, be rapidly heated 810 ℃～850 ℃ again, insulation 25～40min protects the weldering diffusion to connect;
3) after insulation finishes, be cooled to 350 ℃～400 ℃ air coolings of coming out of the stove with stove;
4) behind the air cooling,, adopt usual way to carry out the rolling and annealing of multi-pass, promptly get fused mass of fuse band of the present invention the full section composite material that is used to make fused mass of fuse that welds together.
After the band of making of production method of the present invention that is used for fused mass of fuse strikes out the element assembling, because the fuse protection at fuse partly uses silver or silver alloy, can guarantee the silver-colored melt of fuse protection part cut-off strong short circuit current the time resistance value that has be not easy to change, fusing point is constant, help the stability of holding circuit and the characteristics of fail safe, guaranteed the operating chacteristics that fuse itself should possess, do not influenced electrical equipment and circuit safety and have; Copper or copper alloy are used in the position that is connected conduction with circuit, can reduce cost greatly, therefore, the melt material of the present invention prospect that is widely used in the fuse field.
Melt material of the present invention is between every two parts copper or the copper alloy, be welded with the structure of silver or silver alloy by the yellow gold scolder, when described copper or copper alloy during more than two parts, the width of copper or copper alloy is less than the copper at two ends or the width of copper alloy in the middle of being positioned at, so that the installation of melt, certain width that is positioned at middle copper or copper alloy also can equal the copper at two ends or the width of copper alloy, does not influence it equally and uses installation.The width of silver or silver alloy is less than the width of copper or copper alloy; Both can guarantee that silver or silver alloy were positioned at the fuse protection part of fuse, can also reduce cost simultaneously.The width of yellow gold scolder when guaranteeing that copper or copper alloy and silver or silver alloy firmly weld, does not also influence the operating chacteristics that fuse itself should possess less than the width of silver or silver alloy melt.Copper or copper close, silver or silver alloy and yellow gold thickness are identical, can guarantee the neat and practical of the characteristic of melt of fuse and banded melt.
According to the height of fuse working voltage, the quantity of silver or silver alloy can for a part or two parts or three parts and more than.
Referring to Fig. 1, adopt manufacture method of the present invention, from the cross section of melt band, silver layer and copper layer all run through whole cross section, and the fused mass of fuse with this band is made can guarantee the operating chacteristics that fuse itself should possess, stable performance.
Adopt manufacture method of the present invention, by the method for welding silver, copper are fixed with the yellow gold scolder, it is simple to have production technology, operation easily, and the low advantage of production cost is arranged.
Adopt the full section composite material of above-mentioned diffusion technology for welding production to have very high interface bond strength, the material that welding is good becomes the band of thickness 0.03-0.3mm by multi-pass is rolling with annealing, and its interface can not crack.
Description of drawings
Fig. 1 is the cross-sectional structure schematic diagram of band of the present invention.
Embodiment
According to the dimensional requirement and the equipment requirements of final band, calculate thickness, width and the width of original material.Reprocess out the silver or silver alloy and copper or the copper alloy bar that are of the required size.Silver or silver alloy rod is alternate in twos placed side by side with copper or copper alloy rod; sandwich AgCu28 alloy strip-shaped solder between the two; the copper that will be clamped together with metal fixture or copper alloy body, silver or silver alloy body, yellow gold scolder are put into heating furnace; in vacuum or protective atmosphere, heat, protect the weldering diffusion to connect; this process temperature was increased to more than the scolder fusing point in the short time, but must not be higher than the fusing point of silver or silver alloy.Its protective atmosphere is decomposed ammonia, nitrogen or hydrogen.Insulation treats that temperature is reduced to the air cooling of coming out of the stove below 400 ℃ after finishing, and carries out the rolling and annealing of multi-pass with usual way again, obtains the band that is used to make fused mass of fuse of the present invention of thickness 0.03-0.3mm.Referring to Fig. 1, when the copper of the cross section of band or copper alloy body during more than two sections, the every section copper in the middle of being positioned at or the cross-sectional width of copper alloy body are less than the cross-sectional width of every section copper that is positioned at two ends or copper alloy body; The cross-sectional width of every section silver or silver alloy body is less than the cross-sectional width of every section copper or copper alloy body; The cross-sectional width of every section yellow gold scolder is significantly smaller than the cross-sectional width of every section silver or silver alloy melt, and the thickness of copper or copper alloy body, silver or silver alloy body and yellow gold scolder is identical.
Embodiment 1 (referring to Fig. 1)
1. by shown in Figure 1, four copper rods and three silver rods are alternate placed side by side in metal mold anchor clamps, between Ag and Cu, sandwich wide AgCu28 strip 3 scolders of 0.03mm～0.1mm, the length of four copper rods is 1m, the width L1 that is positioned at the copper rod at two ends is 20+2mm, and the width L3 of the copper rod in the middle of being positioned at is 10-1mm; The length of three silver rods is 1m, and the width L2 that is positioned at the silver rod at two ends is 4+2.5mm, and the width L4 of the silver rod in the middle of being positioned at is 4+1mm.With metal fixture copper rod, silver rod, AgCu28 strip scolder together placed side by side clamped.The thickness H of silver, copper and AgCu28 scolder is identical.
2. the above-mentioned metal fixture of laying copper rod and silver-colored rod and AgCu28 strip scolder is put into vacuum annealing furnace, its vacuum degree is extracted into 10
-2Begin more than the Pa to heat up, behind 700 ℃ of maintenance 70min, be rapidly heated 830 ℃, insulation 40min protects the weldering diffusion to connect.After insulation finishes, be cooled to the air cooling of coming out of the stove below 400 ℃ with stove, behind the air cooling, complete the section composite material that is used to make fused mass of fuse to welding together, adopt usual way to carry out the rolling and annealing of multi-pass, promptly get fused mass of fuse band of the present invention.
1. step 1 in the method for present embodiment making fused mass of fuse and embodiment's 1 is basic identical.
2. the above-mentioned metal fixture of laying copper rod and silver rod is put into vacuum annealing furnace, diffusion connects heat treatment process and adopts the decomposed ammonia protection.After material is put into stove, feed decomposed ammonia 10min earlier, begin heating then, behind 730 ℃ of maintenance 75min, be rapidly heated 850 ℃, insulation 25min protects the weldering diffusion to connect.After insulation finishes, still ventilation, treat furnace temperature reduce to stop below 350 ℃ the ventilation, the material cooling air cooling of coming out of the stove, behind the air cooling, to the full section composite material that is used to make fused mass of fuse that welds together, adopt usual way to carry out the rolling and annealing of multi-pass, promptly get fused mass of fuse band of the present invention.。
1. step 1 in the method for present embodiment making fused mass of fuse and embodiment's 1 is basic identical.
2. the above-mentioned metal fixture of laying copper rod and silver rod is put into vacuum annealing furnace, diffusion connects heat treatment process and adopts hydrogen shield.After material is put into stove, feed hydrogen 20min earlier, begin heating then..Behind 650 ℃ of maintenance 70min, be rapidly heated 810 ℃, insulation 35min protects the weldering diffusion to connect.Be cooled to stop below 350 ℃ ventilation with stove, the material cooling air cooling of coming out of the stove is behind the air cooling, to the full section composite material that is used to make fused mass of fuse that welds together, adopt usual way to carry out the rolling and annealing of multi-pass, promptly get fused mass of fuse band of the present invention.
With the compound band of the inventive method, during use, the punching press band that is used to make fused mass of fuse of the present invention as required is installed on the fuse according to the method for routine and gets final product.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection range is as the criterion when looking the claim person of defining.
Claims (9)
1. band that is used for fused mass of fuse, it is characterized in that: the cross section of described band comprises at least two intersegmental copper that separates or copper alloy bodies, be provided with silver or silver alloy body between two sections copper of adjacent spaced-apart or the copper alloy body, be provided with the yellow gold scolder that is used to weld between silver or silver alloy body and copper or the copper alloy body, described silver or silver alloy body and copper or copper alloy body are fixing by the yellow gold scolder welding that is used to weld.
2. the band that is used for fused mass of fuse according to claim 1, it is characterized in that: the copper of the cross section of described band or copper alloy body be during more than two sections, and the every section copper in the middle of being positioned at or the cross-sectional width of copper alloy body are less than the cross-sectional width of every section copper that is positioned at two ends or copper alloy body; The cross-sectional width of every section silver or silver alloy body is less than the cross-sectional width of every section copper or copper alloy body; The cross-sectional width of every section yellow gold scolder is less than the cross-sectional width of every section silver or silver alloy body, and the thickness of copper or copper alloy body, silver or silver alloy body and yellow gold scolder is identical.
3. the band that is used for fused mass of fuse according to claim 2 is characterized in that: described in the middle of being positioned at every section copper or the cross-sectional width of copper alloy body be 2～30mm, being positioned at the every section copper at two ends or the cross-sectional width of copper alloy body is 3～50mm.
4. the band that is used for fused mass of fuse according to claim 2 is characterized in that: the cross-sectional width of described every section silver or silver alloy body is 1～6mm.
5. the band that is used for fused mass of fuse according to claim 2 is characterized in that: the cross-sectional width of described every section yellow gold scolder is 0.03mm～0.1mm.
6. the band that is used for fused mass of fuse according to claim 1 is characterized in that: described yellow gold scolder is the AgCu28 alloy.
7. the band that is used for fused mass of fuse according to claim 1 is characterized in that: the melt of described fuse is for banded.
8. make the method for band as claimed in claim 1, it is characterized in that:
1) copper or copper alloy body, silver or silver alloy body is alternate placed side by side, between copper or copper alloy body, silver or silver alloy body, sandwich the yellow gold scolder, copper or copper alloy body, silver or silver alloy body, yellow gold scolder together placed side by side clamped with metal fixture;
2) copper that will be clamped together with metal fixture or copper alloy body, silver or silver alloy body, yellow gold scolder are put into heating furnace, in vacuum or protective atmosphere, be heated to 650 ℃～730 ℃, after keeping 70～75min, be rapidly heated 810 ℃～850 ℃ again, insulation 25～40min protects the weldering diffusion to connect;
3) after insulation finishes, be cooled to 350 ℃～400 ℃ air coolings of coming out of the stove with stove;
4) behind the air cooling,, adopt usual way to carry out the rolling and annealing of multi-pass, promptly get described fused mass of fuse band the full section composite material that is used to make fused mass of fuse that welds together.
9. manufacture method according to claim 8 is characterized in that: step 2) described protective atmosphere is decomposed ammonia or hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100693885A CN101281839B (en) | 2008-02-25 | 2008-02-25 | Belt material for fused mass of fuse and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100693885A CN101281839B (en) | 2008-02-25 | 2008-02-25 | Belt material for fused mass of fuse and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101281839A CN101281839A (en) | 2008-10-08 |
| CN101281839B true CN101281839B (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100693885A Active CN101281839B (en) | 2008-02-25 | 2008-02-25 | Belt material for fused mass of fuse and manufacturing method thereof |
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| CN (1) | CN101281839B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416331A (en) * | 2013-09-02 | 2015-03-18 | 南京利河伯合金材料有限公司 | Preparation process of noble and base metal penetrating compound strip |
| CN106531586A (en) * | 2016-12-21 | 2017-03-22 | 国网上海市电力公司 | Grid type fuse wire sheet with inverse-time characteristic curve |
| CN107350664A (en) * | 2017-09-04 | 2017-11-17 | 湖北汽车工业学院 | A kind of copper silver brazing masterbatch and its soldering processes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB508169A (en) * | 1937-10-16 | 1939-06-27 | British Thomson Houston Co Ltd | Improvements in and relating to electric cut-outs |
| US4315235A (en) * | 1980-07-31 | 1982-02-09 | Jacobs Jr Philip C | Composite fusible element for electric current-limiting fuses |
| EP1300867A1 (en) * | 2001-10-03 | 2003-04-09 | Metalor Technologies International S.A. | Fuse link and method of manufacture |
| CN2718768Y (en) * | 2004-07-01 | 2005-08-17 | 陈晓 | Copper / silve / copper double-side composite board strap material |
-
2008
- 2008-02-25 CN CN2008100693885A patent/CN101281839B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB508169A (en) * | 1937-10-16 | 1939-06-27 | British Thomson Houston Co Ltd | Improvements in and relating to electric cut-outs |
| US4315235A (en) * | 1980-07-31 | 1982-02-09 | Jacobs Jr Philip C | Composite fusible element for electric current-limiting fuses |
| EP1300867A1 (en) * | 2001-10-03 | 2003-04-09 | Metalor Technologies International S.A. | Fuse link and method of manufacture |
| CN2718768Y (en) * | 2004-07-01 | 2005-08-17 | 陈晓 | Copper / silve / copper double-side composite board strap material |
Non-Patent Citations (1)
| Title |
|---|
| JP平4-118827A 1992.04.20 |
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| CN101281839A (en) | 2008-10-08 |
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Owner name: CHONGQING CHUANYI AUTOMATION CO., LTD. Free format text: FORMER OWNER: CHONGQING SICHUAN INSTRUMENT COMPLEX CO.,LTD. Effective date: 20090508 |
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Effective date of registration: 20090508 Address after: No. 1, people's village, Beibei District, Chongqing Applicant after: Chongqing Sichuan Instrument Complex Co., Ltd. Address before: No. 61 Mount Huangshan Avenue, North New District, Chongqing Applicant before: Chongqing Sichuan Instrument Complex Co., Ltd. |
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