Lead-free high-frequency brazing method for deformed zinc alloy grafting structure

A plug-in structure, high-frequency brazing technology, applied in welding/welding/cutting items, welding media, welding equipment, etc., can solve the problems that restrict the promotion and application of zinc-substituted copper products, the overall structure is easy to loosen, and there are pores and cracks. problems, to achieve high industrial utilization value, improve labor conditions, and shorten the liquefaction process.
CN102886579AInactive Publication Date: 2013-01-23NO 52 INST OF CHINA NORTH IND GRP CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NO 52 INST OF CHINA NORTH IND GRP CORP
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a lead-free high-frequency brazing method for a deformed zinc alloy grafting structure. The lead-free high-frequency brazing method is characterized by comprising the following steps of: a, inspection process: inspecting a weldment and a brazing filler metal; b, treatment process before assembling: using abrasive paper to grind a brazing part, and using acetone to clean the brazing part; c, assembling process: inserting a zinc alloy bar in an inserting hole, keeping the zinc alloy bar in an upright state and inserting the zinc alloy bar to the bottom, annularly sleeving the the brazing filler metal at a part to be brazed, and coating a brazing flux at a brazing seam; d, high-frequency sensing brazing process: adjusting specification parameters according to the type of a brazing machine to weld; and e, treatment process after brazing: timely using clear water to clean residuals at the brazing seam. Compared with the existing technology, the lead-free high-frequency brazing method has the advantages that: the lead-free brazing filler metal is used so that the working condition is greatly improved, the lead-free high-frequency brazing of the deformed zinc alloy is achieved by the the steps of assembling before brazing, the adjustment of the high-frequency sensing brazing process parameters and the treatment after brazing, the obtained brazing seam is full and smooth, and the connection strength is improved.
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Description

technical field

[0001] The invention relates to a brazing method for deformed zinc alloy, which belongs to the technical field of welding. Background technique

[0002] Zinc alloys, especially wrought zinc alloys, have excellent comprehensive properties and become ideal substitutes for copper alloys in some fields, and have broad application prospects in cluster industries such as electronic communications, sanitary ware, hardware construction, electromechanical, and clothing. Welding technology is an indispensable and important content in the market application of wrought zinc alloys, especially as a substitute material in the downstream related industries of copper alloys such as sanitary ware, hardware, home appliances and other industries, and thus has become a key technical problem to be solved urgently for wrought zinc alloys one.

[0003] The main components of wrought zinc alloys are Zn, Al, Cu, Mg, etc. Among them, Zn has a low melting point and boiling point (boil...

Claims

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