Steel castings are products that almost all industrial sectors need to use at present, especially in ships and vehicles, construction machinery, construction machinery, power station equipment and chemical equipment. Before the steel castings are put into use, steel castings manufacturers need to carry out testing to confirm the quality of large slag pot steel castings and to determine whether they can be put into use. Next, the steel casting manufacturers will introduce to you the testing methods of steel castings for large slag pots:
Steel casting manufacturers test some small and medium-sized parts, such as small size and light weight products, whose processing volume is relatively small, so they can be directly fixed to the magnetic particle flaw detection equipment, or two vertical directions for magnetization, or directly use DC current, using the wet continuous method for inspection.
For example, for steel castings with large slag pot volume and large weight, it is necessary to magnetize the local or zonal parts in two roughly vertical aspects. at this time, a portable or mobile magnetic particle flaw detector with DC or half-wave rectifier is used, and then the contact method is used to detect the steel castings of large slag pot.
In the process of testing large slag pot castings, in order to prevent the castings from burning out and electrode contact, steel casting manufacturers need to pay attention not to turn on the power supply when the contacts are not in full contact with the surface of the castings. the contacts can only be removed when the current has been disconnected, and appropriate methods need to be used to clean or replace the contacts.