Vacuum brazing furnace method has the following several kinds of classification methods

Vacuum brazing furnace method has the following several kinds of classification methods

Selected for the quality of the vacuum brazing furnace and the brazing method and brazing material (solder, solder, etc.) and vacuum brazing furnace process parameters and so on. According to the different characteristics and standards, vacuum brazing furnace method has the following several kinds of classification methods.
(1) according to the adopted by the melting point of solder Can be divided into soft soldering and brazing, solder melting point is lower than 450 ℃ when called soft soldering, higher than 450 ℃ when called brazing.
(2) according to the brazing temperature Can be divided into high temperature soldering, brazing temperature and low temperature brazing, the division of temperature is relative to the parent metal melting point. For steel, for example, the heating temperature higher than 800 ℃, called high temperature brazing, called between 550 ~ 800 ℃ in the brazing temperature, the heating temperature is below 550 ℃ is called low temperature brazing; But for aluminum alloy, the heating temperature higher than 450 ℃, called high temperature brazing, called between 300 ~ 450 ℃ in the brazing temperature, the heating temperature is below 300 ℃ is called low temperature brazing.
(3) according to the different heat source and heating method can be divided into flame brazing, furnace brazing resistance welding, induction brazing and soldering, dip soldering, brazing, soldering iron and ultrasonic soldering, etc.
(4) according to the way of removal of the parent metal surface oxidation film can be divided into solder brazing, soldering flux soldering, the flux brazing, gas brazing and vacuum brazing, etc.
5. According to the joint formation characteristics Can be divided into capillary brazing and the capillary brazing. Liquid solder on capillary action fill in brazing seam is referred to as the capillary brazing; Capillary action in a vacuum brazing furnace form does not play a major role in the process is called the capillary brazing. Contact reaction brazing and diffusion brazing is the most typical of capillary brazing process.
6. According to the connection of different material or filler metals Can be divided into aluminum soldering, brazing of stainless steel, titanium alloy brazing, high temperature alloy soldering, brazing ceramics, composite brazing copper and silver brazing, soldering, etc.