Many studies were carried on the technologies and properties of laser cladding on the seal face of valve, but lack of contrast data with plasma spraying Alloy applied at present.
气门密封面激光熔覆的工艺和性能研究较多，但激光熔覆的合金组织和性能与现在气门密封面生产应用的等离子喷焊合金的对比数据较少。
Upon installation, a hand-tightened union nut serves to compress the face-seal of a Chemtrol valve.
一旦安装完毕，手动旋紧的管接螺母就紧压着Chemtrol阀门的密封面。
Upon installation, a hand-tightened union nut serves to compress the face-seal of a Chemtrol valve.
在安装期间，手动紧固管接螺母用来压紧Chemtrol阀门的表面密封。
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