CN101791749A - Low-sliver brazing filler metal and production method and equipment thereof - Google Patents
Low-sliver brazing filler metal and production method and equipment thereof Download PDFInfo
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- CN101791749A CN101791749A CN200910154537A CN200910154537A CN101791749A CN 101791749 A CN101791749 A CN 101791749A CN 200910154537 A CN200910154537 A CN 200910154537A CN 200910154537 A CN200910154537 A CN 200910154537A CN 101791749 A CN101791749 A CN 101791749A
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Abstract
The invention discloses a production method of low-sliver brazing filler metal, comprising the steps of mixing and smelting raw materials. The raw materials comprise the following components in percentage by weight: 89-91 percent of Cu, 6.8-7.5 percent of P, 1.5-2.5 percent of Ag, 0.1-0.4 percent of In, 0.1-0.4 percent of Sn, 0.01-0.1 percent of Re and 0.01-0.1 percent of Ni. The production method comprises the following steps of: smelting Ag, In, Sn and rare earth Re at low temperature into an alloy with low melting point for later use in the smelting process; feeding Cu and a copper-phosphorus alloy into an intermediate frequency furnace for smelting; heating to near 1,100DEG C for completely smelting; adding Ag and trace amount of Ni and continuously raising the temperature and uniformly stirring to be smelted; reducing the temperature, pressing the prepared alloy with low melting point into a liquid state Cu alloy for smelting at the temperature of 1,000DEG C and uniformly stirring until the metal is completely smelted. By mixing several raw materials, the beneficial performances of various elements in the filler metal can be well embodied in the welding effect, the welding smelting point of products can be reduced and the flowability and the wettability of the products can be improved, so the filler metal can replace high-sliver filler metal.
Description
Technical field
The present invention relates to a kind of low-sliver brazing filler metal and manufacture method thereof and equipment.
Background technology
Brazing material is the product that is used for the refrigeration aspect, as air-conditioning, refrigerator, water heater, but along with progress, the reach of science of society, now is used for aviation, shipbuilding, light fixture, large-size machine etc. again, and purposes more and more widely.Also and then the market demand is increasing to use high silver solder in every field, and the silver on the market holds at high price, and producer's cost of producing brazing material is also increased greatly, has reduced their competitiveness in the industry.
Summary of the invention
Technical problem to be solved by this invention provides a kind of manufacture method of low-sliver brazing filler metal, and obtained product fusing point is low, flowability, and wettability is good, has improved welding effect.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: low-sliver brazing filler metal, raw material comprise following component, and the mass percent of each component is: Cu:89-91%; P:6.8-7.5%; Ag:1.5-2.5%; In:0.1-0.4%; Sn:0.1-0.4%; Rare earth Re:0.01-0.1%; Ni:0.01-0.1%.
Embodiment one, and the mass percent of each component is: Cu:90%; P:7.5%; Ag:1.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.The product resultant effect is better.
Embodiment two, and the mass percent of each component is: Cu:89%; P:7.5%; Ag:2.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.The product flowability, wettability is good.
Embodiment three, and the mass percent of each component is: Cu:90.5%; P:7%; Ag:2%; In:0.2%; Sn:0.1%; Rare earth Re:0.1%; Ni:0.1%.Cost is lower.
Make the method for above-mentioned low-sliver brazing filler metal, comprise raw material proportioning, melting, earlier become low-melting alloy standby Ag, In, Sn, rare earth Re cold melt in the described fusion process, to carry out melting in Cu and the phosphor copper input intermediate frequency furnace, be heated to nearly 1100 ℃ of fusings fully, the Ni that adds Ag and trace, continue to heat up, stir to fusing, cooling, enter holding stage, temperature 1000 ℃ the low-melting alloy for preparing is pressed in the liquid Cu alloy fusing and about, about evenly stir, melt fully until metal.
Adopt the equipment of above-mentioned low-sliver brazing filler metal manufacture method, described intermediate frequency furnace top is connected with vacuum tank, is provided with the recovery plate in the described vacuum tank, and this recovery plate comprises basic unit and ceramic recovery layer.
Described ceramic recovery layer is a wedge shape, so that form different condensation temperatures.
The present invention is owing to adopted technique scheme, this solder is when reducing production costs significantly, by to several proportion of raw materials, make the useful performance of each element in solder be embodied in the welding effect well, reduce product welding fusing point, improve the flowability and the wettability of product, alternative high silver solder.Adopt in the equipment and reclaim plate so that reclaim In and the Ag that melts volatilization in the described fusion process.
Description of drawings
Fig. 1 is the structural representation that reclaims plate in the low-sliver brazing filler metal manufacturing equipment.
The specific embodiment
In the process of manufacture of low-sliver brazing filler metal, the performance that each element of required formula material plays in product is different.
The requirement fusing point is low: the fusing point of metallic tin is 232 ℃, and according to discovering of the near twenty or thirty of expert year, tin can significantly reduce the solid, liquid phase line of solder; The fusing point of rare metal indium is 156 ℃, and is lower than the fusing point of metallic tin, adds the solid, liquid phase line that indium can more significantly reduce solder, can improve liquidity, improve simultaneously wetability.But the solubility of tin in copper is little, and along with the increase of tin content, the processing characteristics of solder worsens, and its intensity obviously descends, and solder embrittlement is increased.
Require mobilely, wettability is good, improves welding effect: metallic tin dwindles melting region when can significantly reduce the solid, liquid phase line of solder; Similar to tin, indium also can make the solder melting region reduce, thereby has improved the solder flowability.Indium is beneficial element in solder, and along with content increases, the fusion temperature of solder descends gradually, and spreading property increases gradually.Wetability is meant the ability that a kind of liquid metal is sprawled at a surface of solids.For solder, can form good wettingly with substrate, be the key that can finish welding, for guarantee welding point firmly, solder must have good wetability.Therefore, research solder sprawl be research solder performance an important indicator.Rare earth is the surface tension that surface active element can reduce liquid solder, impel solder at the base moistened surface, in addition, because rare earth element character is active, in brazing process, be easy to generate oxidizing slag, oxidizing slag generates the wettability that can reduce solder, rise thereby hinder the general of solder, when rare earth element is trace, rare earth element will help solder and sprawl, too much when rare earth element, the inhibition of oxidizing slag is obvious more.
Requirement tensile strength height: the refractory metal nickel that adds trace can improve the wettability and the strength of joint of solder, to purifying crystal boundary, improving plasticity, the effect preferably of having gained in strength, and can improve processing characteristics, be easy to be processed into band, but can improve the liquidus temperature of solder, can also improve corrosion resisting property.Experiment simultaneously also shows, adds indium in solder, can make the intensity of joint obtain to a certain degree raising, but when above certain content, strength of joint sharply descends, so rational proportion is crucial in the research and development of this solder.In the ree content trace scope, solder welding spot intensity is significantly improved.It is called as industrial monosodium glutamate.
According to above-mentioned action principle, by to the structure that each element is arranged and the analysis of performance, having screened with silver, copper, phosphorus is primary raw material, has determined the advanced technologies that constant temperature is quantitatively thrown in metallic element.Make each element reach eutectic congruent melting state, make the useful performance of each element be able to best embodiment in product, product is used for accurate welding to be produced, and makes its each performance that improves solder, has reached the technological effect of welding.
The manufacture method of low-sliver brazing filler metal of the present invention comprises raw material proportioning, melting, and raw material comprises following component, and the mass percent of each component is: Cu:89-91%; P:6.8-7.5%; Ag:1.5-2.5%; In:0.1-0.4%; Sn:0.1-0.4%; Rare earth Re:0.01-0.1%; Ni:0.01-0.1%.
Embodiment one, and the mass percent of each component is: Cu:90%; P:7.5%; Ag:1.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.
Embodiment two, and the mass percent of each component is: Cu:89%; P:7.5%; Ag:2.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.
Embodiment three, and the mass percent of each component is: Cu:90.5%; P:7%; Ag:2%; In:0.2%; Sn:0.1%; Rare earth Re:0.1%; Ni:0.1%.
Make the method for above-mentioned low-sliver brazing filler metal, comprise raw material proportioning, melting, earlier become low-melting alloy standby Ag, In, Sn, rare earth Re cold melt in the described fusion process, to carry out melting in Cu and the phosphor copper input intermediate frequency furnace, be heated to nearly 1100 ℃ of fusings fully, the Ni that adds Ag and trace, continue to heat up, stir to fusing, cooling, enter holding stage, temperature 1000 ℃ the low-melting alloy for preparing is pressed into special bell jar in the liquid Cu alloy fusing and about, about evenly stir, melt fully until metal.It is static to do odds and ends then, begins next link cast at last.
Low-sliver brazing filler metal is on the basis of 2% low-sliver brazing filler metal, and fusion temperature adopts 640 ℃ of solidus, and 690 ℃ of liquidus curves reduce the temperature of its solidus, liquidus curve, and two temperatures diminishes at interval, and reduce with the fusion temperature of high silver solder poor.
As everyone knows, cadmium element is to one of the most useful element of solder, but because of cadmium element is poisonous, can be detrimental to health, and does not meet environmental requirement, and the requirement for restriction of pair cadmium element is clearly arranged in the ROHS check.And indium, tin, rare earth, nickel or the like are considered as little poison or nontoxic, can be widely used in the industry-by-industry.Solder environmental protection standard: Cd≤100mg/kg, Pb≤1000mg/kg, Hg≤1000mg/kg.
The specification of strip solder such as following table after the moulding (unit: mm):
The specification of circle bar, brazing wire such as following table (unit: mm):
The specification of ring-type solder such as following table (unit: mm):
Adopt the equipment of above-mentioned low-sliver brazing filler metal manufacture method, described intermediate frequency furnace top is connected with vacuum tank, is provided with the recovery plate in the described vacuum tank, as shown in Figure 1, this recovery plate comprises basic unit 1 and ceramic recovery layer 2, so that reclaim In and the Ag that melts volatilization in the described fusion process.Because the fusing point of In and Ag is different, described ceramic recovery layer 2 is a wedge shape, is beneficial to so that form different condensation temperatures to reclaim different In and the Ag of fusing point.
Claims (7)
1. low-sliver brazing filler metal, it is characterized in that: raw material comprises following component, the mass percent of each component is: Cu:89-91%; P:6.8-7.5%; Ag:1.5-2.5%; In:0.1-0.4%; Sn:0.1-0.4%; Rare earth Re:0.01-0.1%; Ni:0.01-0.1%.
2. according to the described low-sliver brazing filler metal of claim 1, it is characterized in that: the mass percent of each component is: Cu:90%; P:7.5%; Ag:1.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.
3. according to the described low-sliver brazing filler metal of claim 1, it is characterized in that: the mass percent of each component is: Cu:89%; P:7.5%; Ag:2.5%; In:0.4%; Sn:0.4%; Rare earth Re:0.1%; Ni:0.1%.
4. according to the described low-sliver brazing filler metal of claim 1, it is characterized in that: the mass percent of each component is: Cu:90.5%; P:7%; Ag:2%; In:0.2%; Sn:0.1%; Rare earth Re:0.1%; Ni:0.1%.
5. make the method for the described low-sliver brazing filler metal of claim 1, comprise raw material proportioning, melting, it is characterized in that: become low-melting alloy standby Ag, In, Sn, rare earth Re cold melt earlier in the described fusion process, to carry out melting in Cu and the phosphor copper input intermediate frequency furnace, be heated to nearly 1100 ℃ of fusings fully, the Ni that adds Ag and trace, continue to heat up, stir to fusing, cooling, enter holding stage, temperature 1000 ℃ the low-melting alloy for preparing added in the liquid Cu alloy fusing and about, about evenly stir, melt fully until metal.
6. adopt the equipment of the described low-sliver brazing filler metal manufacture method of claim 5, it is characterized in that: described intermediate frequency furnace top is connected with vacuum tank, is provided with the recovery plate in the described vacuum tank, and this recovery plate comprises basic unit and ceramic recovery layer.
7. according to the equipment of the described manufacturing low-sliver brazing filler metal of claim 6, it is characterized in that: described ceramic recovery layer is a wedge shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101545372A CN101791749B (en) | 2009-11-12 | 2009-11-12 | Low-sliver brazing filler metal and production method and equipment thereof |
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| CN2009101545372A CN101791749B (en) | 2009-11-12 | 2009-11-12 | Low-sliver brazing filler metal and production method and equipment thereof |
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| CN101791749A true CN101791749A (en) | 2010-08-04 |
| CN101791749B CN101791749B (en) | 2012-03-14 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744534A (en) * | 2012-07-27 | 2012-10-24 | 张国华 | Preparation method of silver-free solder and product |
| CN104028915A (en) * | 2014-06-09 | 2014-09-10 | 乐清市博特焊接材料有限公司 | Phosphor copper welding rod and preparation method thereof |
| CN105149813A (en) * | 2015-09-30 | 2015-12-16 | 杭州华光焊接新材料股份有限公司 | Low-silver-copper-phosphorus brazing material containing trace indium |
| CN106141496A (en) * | 2016-07-28 | 2016-11-23 | 华南理工大学 | A kind of copper phosphor tin nickel solder and its preparation method and application |
| CN106695165A (en) * | 2016-12-29 | 2017-05-24 | 安徽华众焊业有限公司 | Aluminum magnesium alloy welding flux and preparation method thereof |
| CN108465974A (en) * | 2018-02-27 | 2018-08-31 | 江苏远方动力科技有限公司 | A kind of low-silver copper-base high-performance solder and preparation method thereof |
| CN110977242A (en) * | 2019-12-02 | 2020-04-10 | 金华市三环焊接材料有限公司 | Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof |
| CN113843546A (en) * | 2021-09-23 | 2021-12-28 | 金华市金钟焊接材料有限公司 | CuPSnAg Ni-Re ultra-silver solder, preparation method and application |
| CN114367764A (en) * | 2022-03-07 | 2022-04-19 | 金华市步扬焊材有限公司 | Bronze welding wire and production process and extrusion equipment thereof |
-
2009
- 2009-11-12 CN CN2009101545372A patent/CN101791749B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744534A (en) * | 2012-07-27 | 2012-10-24 | 张国华 | Preparation method of silver-free solder and product |
| CN104028915A (en) * | 2014-06-09 | 2014-09-10 | 乐清市博特焊接材料有限公司 | Phosphor copper welding rod and preparation method thereof |
| CN105149813A (en) * | 2015-09-30 | 2015-12-16 | 杭州华光焊接新材料股份有限公司 | Low-silver-copper-phosphorus brazing material containing trace indium |
| CN106141496A (en) * | 2016-07-28 | 2016-11-23 | 华南理工大学 | A kind of copper phosphor tin nickel solder and its preparation method and application |
| CN106695165A (en) * | 2016-12-29 | 2017-05-24 | 安徽华众焊业有限公司 | Aluminum magnesium alloy welding flux and preparation method thereof |
| CN108465974A (en) * | 2018-02-27 | 2018-08-31 | 江苏远方动力科技有限公司 | A kind of low-silver copper-base high-performance solder and preparation method thereof |
| CN110977242A (en) * | 2019-12-02 | 2020-04-10 | 金华市三环焊接材料有限公司 | Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof |
| CN113843546A (en) * | 2021-09-23 | 2021-12-28 | 金华市金钟焊接材料有限公司 | CuPSnAg Ni-Re ultra-silver solder, preparation method and application |
| CN114367764A (en) * | 2022-03-07 | 2022-04-19 | 金华市步扬焊材有限公司 | Bronze welding wire and production process and extrusion equipment thereof |
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| Publication number | Publication date |
|---|---|
| CN101791749B (en) | 2012-03-14 |
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Inventor after: Ma Chaoli Inventor before: Jiang Ruzhi Inventor before: Jiang Junyi |
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Effective date of registration: 20151124 Address after: 210016, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu Province, 29 general Avenue, Jiangning Patentee after: Ma Chaoli Address before: 321081 Jinxi Development Zone, Zhejiang, Jinhua Patentee before: Jinhua Shuanghuan Brazing Alloys Co., Ltd. |
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Granted publication date: 20120314 Termination date: 20171112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |