目的：考察新型不含铍的镍铬铝钛烤瓷合金可铸造性能，为新型烤瓷合金的研制和临床应用提供实验依据。
Objective: To study the physical castability of a new type nickel based ceramic alloy without beryllium by comparing with CW pa alloy and VB alloy, for the purpose of future clinical application.
常用材料：钛、钛合金、不锈钢、铁、铝、铜、铍铜等。
Commonly used materials: titanium, titanium alloy, stainless steel, iron, aluminum, copper, beryllium copper.
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