| 简介 |
FIELD : process engineering.SUBSTANCE : invention relates to foundry and can be used for production of high-strength iron with globular graphite without structurally free cementite as-cast. Proposed alloy contains the following substances, in wt. % : rare earth metals - 10-20, silicon - 20-30, scandium - 1-3, aluminium making the rest. Foundry alloy comprises 1-3 wt. % of lanthanum in rare earth metal compound.EFFECT : higher mechanical properties, ruled out chill in thick-wall casts.2 cl, 1 ex, 2 tbl |
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