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Everybody in the spreading industry understands a truth. That is the mechanical buildings of stainless steel casting are more than that of actors iron, however its spreading performance is worse than that of cast iron. Stainless steel spreading comes from financial investment or accuracy spreading, with reasonably high melting factor. The liquified steel is easily oxidized, because of inadequate fluidity as well as big contraction price. From an useful viewpoint, stainless steel spreading appropriates for spreading of numerous types and alloys.

Benefits as well as negative aspects of the stainless steel casting procedure are as below:

Initially, due to the bad liquidity of the molten steel, the wall thickness of the steel castings ought to not be much less than 8 mm, in order to avoid the chilly shut and misrun. ductile iron cast China of the putting system aims to be easy, as well as the sectional dimension is bigger than that of actors iron. Take on dry spreading or hot casting, and the casting temperature must be appropriately raised to 1520-1600. The fluidity can be enhanced since the casting temperature is high with large superheat, hence the liquid keeps for a long time.

Nevertheless, if the putting temperature is expensive, it will certainly trigger defects such as crude grains, warm cracks, pores as well as sand burning. For that reason, the spreading temperature level of small, thin-walled and also complicated casting ought to be at the melting factor +150; and of big, thick-walled casting +100.

We should take these steps to stop the occurrence of shrinkage holes and cracks in stainless-steel castings. 1. Making the wall thickness attire, and also avoid sharp and also best angle structures, 2. Including sawdust to sand mold, and coke to sand core. 3. Taking on hollow sand core and oil sand core to change the deformability as well as leaks in the structure of the sand mold as well as core.

Date joined: 2021-09-17
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