Title:
CAST IRON AND SPHEROIDAL GRAPHITE CAST IRON SURFACE HARDENING
Document Type and Number:
Japanese Patent JPS5524980
Kind Code:
A
Abstract:
PURPOSE: To provide enhanced resistance to wear and errosion to the surface of cast iron products, mixture of one or more of Sn, Sb, or Cu powder is coated on the surface of mold to be contacted with cast products, thereby providing hard layer on the surface of cast iron or spheroidal graphite cast iron.
CONSTITUTION: One or more of powder of Sn, Sb, or Cu are preliminarily mixed and coated on the part or total surface of mold to be contacted with cast products. Molten cast iron or spheroidal graphite cast iron is poured in the coated mold. The surface hardening of this method is effective for areas subject to ash errosion due to smoke such as coal burn boiler or sand/ earth errosion.
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Inventors:
MATSUO SHINTAROU
OOGURO TAKASHI
ONO SHIYUUJI
OOGURO TAKASHI
ONO SHIYUUJI
Application Number:
JP9884378A
Publication Date:
February 22, 1980
Filing Date:
August 14, 1978
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
C21C1/08; (IPC1-7): C21C1/08