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High-aluminum aluminum bronze alloy solder machining method

A technology of bronze alloy and processing method, which is applied in the direction of metal processing equipment, manufacturing tools, welding/cutting media/materials, etc., can solve the problems of low production efficiency, high processing deformation hardening rate, environmental pollution, etc., and achieve processing cost reduction, Effect of improving corrosion resistance and reducing processing steps

Inactive Publication Date: 2011-11-09
TIANJIN JINLONG WELDING MATERIAL
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Problems solved by technology

Due to the high aluminum content of high aluminum bronze alloy solder, there are more brittle eutectoid phases (α+γ 2 ), the processing deformation hardening rate is extremely high, it needs repeated annealing and pickling to stretch to the finished product, the production efficiency is low, and the environmental pollution is serious

Method used

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  • High-aluminum aluminum bronze alloy solder machining method
  • High-aluminum aluminum bronze alloy solder machining method
  • High-aluminum aluminum bronze alloy solder machining method

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Embodiment Construction

[0009] The present invention is further described below.

[0010] The processing method of high-aluminum aluminum bronze alloy brazing material is carried out according to the following steps: firstly, the alloy containing Al: 10.4-10.6%, Fe: 3.8-4.2%, Si: 0.06-0.08%, Pb: 0.004-0.01%, Mn: 0.45 -0.5%, the balance is the cast slab (diameter 8mm) of Cu to carry out heat treatment, heat 2 hours under the temperature of 600 degree in the furnace, cool to 200 degree in the furnace, move to room temperature and cool to room temperature; The second cold drawing, annealing and pickling, cold drawing from 8mm in diameter to 4mm in diameter, and finally the second cold drawing, annealing and pickling, cold drawing from 4mm in diameter to 1mm in diameter, to obtain the finished product.

[0011] Metal plasticity is the performance of the natural properties of metals in a certain state. It is affected by its chemical composition, processing process, organizational structure and other fact...

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Abstract

The invention discloses a high-aluminum aluminum bronze alloy solder machining method, which comprises the following steps of: performing thermal treatment on a casting blank containing 10.4 to 10.6 percent of Al, 3.8 to 4.2 percent of Fe, 0.06 to 0.08 percent of Si, 0.004 to 0.01 percent of Pb, 0.45 to 0.5 percent of Mn and the balance of Cu, heating for 2 hours in a furnace at the temperature of 600 DEG C, cooling the mixture to the temperature of 200 DEG C in the furnace, moving the mixture to a room, and cooling the mixture to room temperature; and performing first cold drawing, annealing and acid washing, and performing second cold drawing, annealing and acid washing to obtain a finished product. The heating temperature, the heat preservation time and the cooling speed are controlled by adopting the novel thermal treatment process, so that the shape, the size and the distribution of the alloy texture phase are changed. The machining plasticity of the material is improved, the machining hardening rate is reduced, the annealing and acid washing frequency in machining is reduced, energy consumption and metal consumption are decreased, and the environment is improved.

Description

technical field [0001] The invention relates to the field of brazing filler metal processing, and more specifically relates to a high-aluminum aluminum bronze alloy brazing filler metal processing method. Background technique [0002] High aluminum bronze alloy solder has high strength, hardness, wear resistance and corrosion resistance. It is widely used in the surfacing and repairing of copper-aluminum alloy anti-corrosion pipe parts with the same composition, the connection of brass pipes, and the welding of marine propellers. Due to the high aluminum content of high aluminum bronze alloy solder, there are more brittle eutectoid phases (α+γ 2 ), the processing deformation hardening rate is extremely high, it needs to be repeatedly annealed and pickled to be stretched to the finished product, the production efficiency is low, and the environmental pollution is serious. Contents of the invention [0003] The technical problem to be solved by the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/40
Inventor 何广年
Owner TIANJIN JINLONG WELDING MATERIAL
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