The wax positive is invested with a mold made of refractory materials and heated to melt the wax, leaving a narrow cavity Between the core and the investment.
正蜡像外面披盖一个耐火材料制成的模具，然后加热使蜡熔化，留下核心与披盖模具之间一个狭窄的空腔。
By adopting the expansion and contraction property of the thermo-sensitive wax, the temperature control valve controls opening and closing of the valve core.
它采用热敏蜡的热胀冷缩性能来控制阀芯的开启与关闭。
The positive can be produced either by direct modeling in wax over a prepared core (direct lost-wax casting), or by casting in a piece mold or flexible mold taken from a master cast.
正像可以用蜡直接在一个准备好的核心上浇铸成型(直接脱蜡浇铸)，也可以浇在一个模具中，或者从主铸件上取下来的柔韧的模具中。
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