How to avoid cracking in reactor welding process

The welding quality of reaction kettle directly affects the product quality in the production process The reaction kettle of Huihe machinery provides you with some welding processes for reaction kettle to avoid cracks, for the industry to discuss 1 For workpieces with high rigidity, preheating can be used before welding The higher the carbon content is, the greater the rigidity is, and the preheating temperature should be increased accordingly 2 The reactor welding adopts high current and easy to crack Try to use low current and multi-layer welding 3 The welding process of reactor should be orderly, the welding sequence is different, the application force is different, and the sequence should be reasonable 4 Reasonable selection of electrodes Key points of welding process: preheating, electrode conditions, groove form, process parameters and heat treatment Different welding methods have different welding processes The welding process is mainly determined according to the material, brand, chemical composition, structure type and welding performance requirements of the parts to be welded First of all, it is necessary to determine the welding methods, such as manual arc welding, submerged arc welding, tungsten argon arc welding, GMAW and so on There are many kinds of welding methods, which can only be selected according to the specific situation After the welding method is determined, the welding process parameters are formulated The types of welding process parameters are different For example, manual arc welding mainly includes: electrode model (or brand), diameter, current, voltage, type of welding power source, polarity connection, number of welding layers, passes, inspection method, etc.