With the development of  automobile, machinery, aerospace, instrumentation and other industries,the application of aluminum die castings are gradually expanded.Meanwhile,aluminum die casting purchasers also put forward higher requirement on the surface quality.Now we would like to introduce shot bla......

Tongda has the ability and skills to deliver investment castings for oil and gas industry.We have been supplying quality investment castings to the oil and gas industry for more than 10 years.As these investment castings are used in high temperature and high working power,so they encounter hard work......

Our steel castings produced by investment casting process can replace many steel fabricated parts.The process is ideal for multi piece fabrications using over 4mm thick steel sections that also need drilling or machining. Advantages of investment castings that replace steel fabricated parts:

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 thre......

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.

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 ......