Dec 28, 2017
What is the difference between Fusion Welding, Pressure Welding and Brazing Welding?
The essence of Fusion Welding is the melting and crystallization of metals, similar to the small casting process;
The essence of pressure welding is the plastic deformation of the metal parts to be welded, crushing or squeezing out the oxide and other impurities on the bonding surface, bringing the pure metal into close contact with each other, and the atomic spacing between the interfaces reaches the normal stress range and firmly combined;
The essence of brazing is the use of liquid solder wetting the base metal, fill the joint gap, and mutual diffusion with the parent material to achieve the connection welding
Soldering is connected by a third metal, not a real welding. Welding is achieved by heating the connection.
Fusion welding: the workpiece to be welded locally heated to melt, condensate to form a weld and the components connected together processing methods. Including arc welding, gas welding, electroslag welding, electron beam welding, brazing solder;
Brazing through the solder wetting and capillary penetration of the joint effect of the material, the melting point lower than the base metal solder heated to melt, but the heating temperature is lower than the melting point of the base metal, with molten solder filler filling, Run Wet parent material and mutual diffusion with the base metal to form a welding method.
Brazing divided into two categories: brazing and soldering. Brazing heating temperature is greater than 450 degrees, tensile strength greater than 200 MPa, often with silver-based, copper-based solder, suitable for work stress, high ambient temperature conditions, such as carbide turning tools, geological drill welding . Soldering heating temperature is less than 450 degrees, the tensile strength of less than 70 MPa suitable for small stress, low working temperature environment. Such as solder tin solder circuit.
In the process of brazing welding, a metal material with a lower melting point than the base metal is used as a brazing filler metal, and the weldment and the brazing filler metal are heated to a temperature higher than the melting point of the brazing filler metal and lower than the melting point of the base metal.
Hangzhou Fulinde Display Manufacturer
Add:No.17 Xingfa Road,Xingqiao Street,Yuhang,Hangzhou,Zhejiang
Tel:+86-571-86238578
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E-mail:christineho@fuldpop.com.cn
+86-571-86238578
No.17 Xingfa Road, Xingqiao Street, Yuhang, Hangzhou, Zhejiang, China
