How to avoid cracks when welding the reactor

The quality of the welding in the production process directly affects the quality of the product. In this case, the reactor of Huihe Machinery provides some processes for the reactor to avoid cracks, which are discussed and discussed by the industry.

1. For workpieces with high rigidity, preheating can be used before welding. The greater the carbon content, the greater the rigidity and the preheating temperature should be increased accordingly.

2, the reactor is welded with high current and easy to crack, try to use small current, multi-layer welding.

3. The welding process of the reactor should be in order, the order of welding is different, and the applied force is different, which should be reasonably matched with the order.

4. Reasonable selection of welding rods.

Welding process points: preheating, electrode conditions, groove form, process parameters, heat treatment.

Different welding methods have different welding processes. The welding process is mainly determined according to the material, grade, chemical composition, weldment structure type and welding performance requirements of the workpiece to be welded.

First of all, we must determine the welding methods, such as hand arc welding, submerged arc welding, tungsten argon arc welding, gas metal arc welding, etc. There are many types of welding methods, which can only be selected according to specific conditions.

After the welding method is determined, the welding process parameters are determined, and the types of welding process parameters are different; for example, hand arc welding mainly includes: welding rod type (or brand), diameter, current, voltage, welding power source type, polarity connection, welding Number of layers, number of tracks, test methods, etc.