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Normalizing is the normally used heat treating process for steel investment castings. After normalizing, the steel investment castings are with better mechanical properties. To control the steel investment castings with a good mechanical property, there're several announcements on normalizing.
Excavator investment castings made in China were delivered into markets all around the world.Excavator, also called 'excavating machinery', is a kind of machinery used for excavating, loading and transporting the material onto stockyard. Most components of the excavator are made by investment casting process.
Lots of investment castings made in fly foundry require for lettering on. Then, what types of lettering on investment castings required in Tongda? We have a brief talk here.
High Mn(manganese) steel, such as Mn13-1, Mn13-2, etc, are widely used to cast products with high wear resistant property. To longer the lifetime of such high Mn(manganese) steel castings, the cast products have to be heat treated properly. High Mn(manganese) steel is a kind of special steel. The heat treating process is also a little different from other steels.
Brazing Technology also called as Soldering Technology is widely used in the industry of agricultural and drillingmachinery building, electricity equipment and instruments manufacturing. Such as hard alloy toolings, drill bits, heat exchanger, etc.
Thread is widely required for machining investment castings. According to the assembling purpose, customer marked drawings of castings with thread standards. We need to machine the threads when investment castings finished. Currently, we machine the threads mainly by two processes. One is lathe thread process and the other is rolling thread process. To use which process should depend on the thread requirements.
