Powder metallurgical material, production method and application thereof

摘要

This invention relates to power metallurgical material, production method and application thereof. A metallurgy powder material with pressure-proof & good compactness, satisfactory to the component content requirements for 316 stainless steel, wherein, 5˜9% (by weight) of Fe3P (or Fe3PO4). The powder metallurgical material has properties of pressure resistance and corrosion resistance, and excellent compactness.

主权项

1. A method for producing a product with a stainless steel powder bearing a chemical formula of Cr17Ni12Mo2, said method comprising:
adding in said stainless steel powder a 5-9% Fe3P powder by weight for pre-processing into a basic powder; pressing the basic powder under a pressure of 7-9 tons/m2 into a pressed material; sintering the pressed material in a vacuum sintering furnace at 1050-1120° C. for 35-50 minutes in about 10 Pa vacuum into a sintered pressed material; and fluting the sintered pressed material for obtaining the product.