In the paper the use of Rare EarthMgSi alloy for rimming steel coping is studied instead of aluminium.
主要研究稀土镁硅合金替代铝条应用于沸腾钢浇注的化学封顶工艺;分析了浇注工艺的可行性。
So less gas is. given off in the mould than with rimming steel, but enough bubbles form at the top of the ingot to counteract most of the shrinkage.
所以,在钢锭模内析出的气体没有沸腾钢多,但又在钢锭头产形成足够的气泡抵消大部分钢的收缩。
A special inlaid technique for rimming enamelled utensils with stainless steel rings was set forward, and the advantages gained by this enclosing process were highlighted.
叙述了搪瓷烧器不锈钢边圈的镶嵌式包边技术,指出了该项新工艺的优点。
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