To ensure the product quality, reduce the costs and guarantee the engineering safety, it has very important practical significance to online monitor the defects of castings.

为保证产品质量、降低生产成本和确保工程安全，对落砂铸件进行缺陷在线检测具有非常重要的实际意义。

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The present invention relates to material engineering technology, and is one laser-TIG welding method for magnesium alloy shapes and castings.

本发明属于本发明属于材料工程技术领域，涉及一种型材、铸件镁合金激光- TIG焊接方法。

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Zinc can be used as a protective coating for iron and steel, and as a building or engineering material in the form of sheet zinc and zinc-alloy die-castings.

锌可用来作钢铁的保护层，还可制成锌板和锌合金压铸件用作建筑和工程材料。

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