摘要 |
A cooling unit adapted for use in a freezing mechanism, which is composed a metallic cylindrical evaporator housing and a metallic freezing pipe helically wound on an outer periphery of the evaporator housing for thermal contact with the evaporator housing, wherein the freezing pipe is embedded in a metal layer formed by slip casting of a low melting point alloy such as aluminum alloy, tin alloy or magnesium alloy on the outer periphery of the evaporator housing.
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