In the stainless steel precision casting, the investment mold is a production process with a lot of process steps, and the problems in each link will affect the quality of the casting.
Chromium is the main alloying element in stainless steel. Chromium tends to produce an oxide film on the surface of molten steel, and the tendency to add steel to titanium is greater, which reduces the fluidity of molten steel.
The common method is medium-temperature wax precision casting. Manual casting is still an important method for heavy-duty castings produced in small batches.
There are other reasons like high sulphur content in molten iron; the molten iron is oxidized, causing the amount of magnesium to be burnt and causing insufficient spheroidizing agent.
On Nov. 5, China holds the first China International Import Expo opening in Shanghai. Chinese president Xi Jinping attends the opening ceremony and makes a speech.
Stainless steel investment casting parts have high dimensional accuracy, generally up to CT4-6 (sand casting is CT10-13, die casting is CT5-7).
The tooth shape of the sprocket is similar to that of the gear, but its tooth profile is not a conjugate tooth profile, and its tooth profile has great flexibility.
The stainless steel open impeller refers to the wheel with the bucket and is part of the impeller of the impeller.
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