Formula of high-strength environment-friendly silver-saving brazing filler metal
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A high-strength, environmentally friendly technology, applied in welding/cutting media/materials, welding media, metal processing equipment, etc., can solve problems such as high material costs and limited product competitiveness
Inactive Publication Date: 2018-02-06
JINHUA SANHUAN WELDING MATERIALS
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[0003] At present, in order to obtain high-strength welds in the domestic and foreign motor industry, the gap between fans and fan blades, some solders containing 30% (mass percentage) and above of silver are used, although they meet the requirements of high-strength environmental protection silver solders. Requirements, but due to the high cost of materials, the competitiveness of the product is limited
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Embodiment 1
[0017] A kind of formula of high-strength environment-friendly silver brazing filler metal, the raw material that it adopts is: silver Ag, copper Cu, zinc Zn, indium In, tin Sn, manganese Mn, rare earth, auxiliary agent; The weight proportion of described raw material is: : Silver Ag20-25%, copper Cu15-25.5%, zinc Zn30-45%, indium In1.0-1.2%, tin Sn0.9-1.5%, manganese Mn0.8-1.8%, rare earth 0.7-2.0%, auxiliary dose balance.
Embodiment 2
[0019] A kind of formula of high-strength environment-friendly silver brazing filler metal, the raw material that it adopts is: silver Ag, copper Cu, zinc Zn, indium In, tin Sn, manganese Mn, rare earth, auxiliary agent; The weight proportion of described raw material is: : silver Ag20%, copper Cu15%, zinc Zn30%, indium In1.0%, tin Sn0.9%, manganese Mn0.8%, rare earth 0.7%, auxiliary agent balance.
Embodiment 3
[0021] A kind of formula of high-strength environment-friendly silver brazing filler metal, the raw material that it adopts is: silver Ag, copper Cu, zinc Zn, indium In, tin Sn, manganese Mn, rare earth, auxiliary agent; The weight proportion of described raw material is: : silver Ag22%, copper Cu20%, zinc Zn40%, indium In1.1%, tin Sn1.2%, manganese Mn1.4%, rare earth 1.6%, auxiliary agent balance.
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Abstract
The invention discloses a formula of high-strength environment-friendly silver-saving brazing filler metal. The high-strength environment-friendly silver-saving brazing filler metal is prepared from,by weight, 20-25% of Ag, 15-25.5% of Cu, 30-45% of Zn, 1.0-1.2% of In, 0.9-1.5% of Sn, 0.8-1.8% of Mn, 0.7-2.0% of rare earth and the balance additive. The high-strength environment-friendly silver-saving brazing filler metal has the advantages of being good in weld joint performance and better in welding flux wettability and fluidity compared with traditional brazing filler metal.
Description
technical field [0001] The invention relates to a formula of a high-strength environment-friendly silver brazing filler metal, and mainly relates to a high-strength environment-friendly and frugal silver brazing filler metal with a silver content of 25%. Background technique [0002] In recent years, with the development of the economy, the consumption of resources and energy in my country has increased sharply, and the pressure on resources and environmental protection has continued to increase. In order to alleviate the contradiction between limited resources and excessive consumption, develop green manufacturing technology, realize energy saving and consumption reduction, Circular economy based on emission reduction and efficiency enhancement is the only way for my country's sustainable economic development. In August 2008, my country's first "Circular Economy Promotion Law" was promulgated and came into effect in January 2009. Behind the promulgation of these policies is...
Claims
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