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。
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。
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。
This standard specifies the general technical requirements of carbon steel castings for general engineering purposes.
本标准规定了一般工程用铸造碳钢件的通用技术条件。
This standard specifies the general technical requirements of carbon steel castings for general engineering purposes.
本标准规定了一般工程用铸造碳钢件的通用技术条件。
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