Observation on the Collapsibility of Acetin-Water Glass Self-Hardening Sand Mold Using the Anthracite Powder as the Collapsing Agent

摘要

In this paper we have observed the effect of collapsing agent's additive amount in pressure after it's casting of an acetin-water glass self-hardening sand casting mold using the collapsing agent and the mold's heating temperature and the collapsing agent's additive amount on the collapsibility.