PROCESS ADVANTAGES OF MOULD TABLE MATERIALS AND TOOLING EQUIPMENT

Our mould tables are made of imported 904L stainless steel. 904L belongs to super austenitic stainless acid resistant steel. Its chemical compositions include nickel content of 23%-28%, chromium content of 19%-23% and molybdenum content of 4%-5%. Just due to higher content of nickel, chromium and molybdenum and adding with cuprum, even in reducibility environment such as sulfuric acid and formic acid, 904L can be inactivated. 904L also has lower corrosion rate in the activated state, its operating temperature can reach 40 degree in pure sulfuric acid within concentration range of CT98%. 904L has very high crevice corrosion resistance and resistance to stress corrosion crack as well as very high anti-point corrosion ability in chloride solution, concentrated hydroxide solution and rich hydrogen sulfide environment. 904L can be welded by various welding ways, the most common welding ways are manual arc welding or inert gas shielded welding. Since carbon content in 904L is lower than 0.020%, carbide will not be precipitated during general heat treatment and welding, which eliminates the risk of intergranular corrosion after general heat treatment and welding.

In addition, we can select 254SMO materials to make mould table. It is also one super austenitic stainless steel with high corrosion resistance. With lower carbon content (<= 0.02) and high molybdenum content (6.0~6.5 Mo), 254SMO has better anti-point corrosion, crevice corrosion resistance performance and excellent intergranular corrosion resistant ability. Meanwhile, it is developed according to halide and acid environment and widely used in harsh working conditions and environment such as high concentration chloride media and seawater. In various industrial occasions of acid medium, especially in acids with halide, 254SMO is much better than other stainless steels. It is one cost-effective stainless steel.

We adopt the world advanced automation equipment and independently innovative tooling and fixtures in the whole flow from shape processing to entire assembly to ensure production process level of our products in hardware aspect.

We have a set of very complete profess flow in mould table processing. And we strictly follow this set of process flow in each production procedure to ensure perfection of each small part and detail of the mold as well as overall performance of mold and make customers easy and pleased in production and use.