A new multifunctional device for testing linear shrinkage, stress and heat check of casting alloy easily and quickly is developed in the paper.

本文研制一种新型铸造合金线收缩-应力-热裂特性多功能测定仪，它可以方便准确的测定金属热裂、应力、线收缩特性。

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But the instruments of testing heat check, stress and linear shrinkage of casting alloy at present are not only inconvenient in operation but also unitary in function.

已有的测定铸造合金热裂、应力、线收缩参数的仪器不仅操作不便，而且功能单一。

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Before starting the machine back check condenser is clean, to avoid bad heat.

开机前须检查机台背面冷凝器是否干净，以免散热不良。

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"One of them heat check shots at that time, " he said, claiming he was unaware where he was standing and using the term for a player launching from extremely deep or extremely quickly to test how hot he really is.

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