加大外部拘束会在一定程度上削弱随焊激冷防止热裂纹的效果。
Increase external restraint will reduce to some degree the effect of preventing hot cracking by trailing intense cooling.
对熔模铸件孤立热节热型壳进行了浇注前及浇注后局部水淬激冷试验。
Experiments for hot mold shell with isolated hot spot by local water quenching in investment casting before and after pouring were conducted.
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