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METHOD FOR MODIFYING CASTINGS IN LOST FOAM CASTING

机译:消失模铸造中铸造的修改方法

摘要

FIELD: technological processes.;SUBSTANCE: method comprises embedding of the modifier particles or alloying additives which are accelerated to a speed higher than 0.5 m/s into the pre-foamed expandable polystyrene raw beads. For the acceleration of particles, a gas flow is used which is supplied impulsely or continuously. Pre-foamed expandable polystyrene raw beads are placed in a box from a grid with cell sizes from 0.4 to 0.7 of the average bead size, and the box is filled by 0.5-0.9 of the volume.;EFFECT: improving the quality of castings due to the uniform distribution of modifiers and alloying additives in the model.;3 cl, 2 dwg, 1 ex
机译:领域:技术过程;实质:该方法包括将以高于0.5 m / s的速度加速的改性剂颗粒或合金添加剂嵌入预发泡的可发泡聚苯乙烯生珠中。为了使颗粒加速,使用了被脉冲地或连续地供应的气流。将预发泡的可发泡聚苯乙烯生珠放在网格大小为平均珠大小0.4至0.7的格的盒子中,并以0.5-0.9的体积填充盒子;效果:提高铸件质量改性剂和合金添加剂在模型中的均匀分布。; 3 cl,2 dwg,1 ex

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