Built two product lines of metal powder and aluminum alloy additive, metal additive, grain refiner.

建立了金属粉末和铝熔铸业用熔剂、金属添加剂、细化剂两套生产线。

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The influences of the filler metal powder on the laser power density threshold value, weld formation and process stability were studied during CO_2 laser welding of aluminum alloy.

研究了填充合金粉对CO_2激光焊接功率阈值、焊缝成形和焊接过程稳定性的影响。

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The results show that: the specimens with metal silicon or aluminum powder become denser because the plastic metal powder contributes to filling the space.

结果表明：在纯碳化硅材料中分别加入硅、铝粉之后，由于金属的延展性，在成型过程中有利的填充了碳化硅颗粒间的空隙，使得干坯更加致密。

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