2024-07-31
Steel castings, as the name suggests, is the part made of molten steel. Compared with ordinary cast iron parts, steel castings has better strength and plasticity. However, in the production of steel casting, the foundry will always encounter some problems, then the foundry should respond to it?
1, in the production and processing, due to the existence of a variety of reasons, the surface of the cast steel may appear shallow grooves and depressions and other phenomena, casting manufacturers can take the method of polishing, grinding these into a smooth arc surface.
2, if the surface of the cast steel has pits, you can use the repair welding method to repair the surface of the pits. According to the size of the hole on the surface of the casting, the appropriate repair welding process is selected.
3, if the hole on the surface of the steel casting appears after the repair welding, and the repair welding place needs to be restored to the original smooth state of the surface of the steel casting, it is also necessary to use the polishing tool. At this time, one point that needs to be considered more is to carry out non-destructive testing on the number and parts of the original surface defects to ensure that these defects are clearly found for subsequent repair.
4, if it is a number of particularly complex castings, in the case of repair welding and polishing have no way to deal with the ground, you can choose gas cutting or carbon arc gouging, under the action of hyperbaric oxygen, the oxidation slag blown off, the metal gas cutting process is a preheating, combustion, slag blowing process.
In general, in the production process of steel casting, it is necessary to process in strict accordance with the production process requirements. For some casting defects, casting manufacturers should carefully check, timely eliminate casting hidden dangers, and fully ensure the quality of cast steel parts.