Method and device for argon arc ferrochrome iron braze welding

Abstract

The invention discloses an argon arc flatiron torch welding device which includes soldering torch, argon gas tank, electric welding machine. The argon gas tank is connected to soldering torch by aero transfer tube. The minus pole of the electric welding machine links with cable negative pole cable of which the other end links with wolframium stick. The welding machine positive pole links with positive cable. The invention also discloses a method of argon arc flatiron torch welding method consists of following steps: turn on the argon gas tank so the argon gas goes into the cavity in the flatiron through aero transfer tube; turn on electric welding machine generating electric arc between wolframium stick and flatiron; adjust the arc current till it is suitable; torch welding. The invention is of heating speed which is tens of times as it of normal flatiron while the heating temperature is controllable and adjustable while welding and is capable of soft and hard torch welding.

Description

technical field [0001] The invention relates to the field of brazing, in particular to a ferrochrome brazing method and device thereof. Background technique [0002] Brazing is a very important method in material connection. Brazing includes ferrochrome brazing, flame brazing, dipping brazing, induction brazing and furnace brazing. Each type of brazing has its own advantages and disadvantages: [0003] 1) Disadvantages of ferrochrome brazing: slow heating, unadjustable temperature, and can only be used as a heat source for soldering. 2) Disadvantages of flame brazing: difficult temperature control, poor protection, severe material deformation, and difficult control of the heating area. 3) Disadvantages of dip brazing: it is only suitable for mass production, and the temperature during brazing work cannot be adjusted. The workpiece must be assembled before brazing, and the operation is inconvenient. 4) Disadvantages of induction brazing: the temperature cannot be adjusted,...

AI Technical Summary

Problems solved by technology

[0003] 1) Disadvantages of ferrochrome brazing: slow heating, non-adjustable temperature, can only be used as heat source for soldering

2) Disadvantages of flame brazing: temperature control is difficult, protection is very poor, material deformation is serious, and the heating area is not easy to control

3) Disadvantages of dip brazing: only suitable for mass production, unable to adjust the temperature during brazing work, the workpiece must be assembled before brazing, and the operation is inconvenient

4) Disadvantages of induction brazing: the temperature cannot be adjusted, the shape of the brazed workpiece is limited, and the brazed workpiece is easy to overheat and cause performance deterioration

5) Disadvantages of brazing in the furnace: large investment in equipment, only suitable for mass production, the parts to be brazed must be assembled before brazing, the solder used must be processed into a certain shape, and the workpiece is heated as a whole

In addition to the above shortcomings of various brazing methods, all brazing methods cannot obtain accurate and wide step temperatures; all brazing methods cannot adjust the temperature as required during the welding process; all brazing methods cannot Precise brazing temperature achieved within seconds

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