This paper deals with the technology to make graphite to diffuse directly to the surface of steel on the resistance welding machine.
在电阻对焊机上，利用电阻热直接进行石墨向钢表面扩散工艺的研究。
The cladding process, anti-corrosion technology of pipe outer surface, welding process of pipe and properties and ap - plication of bimetallic clad pipe are presented in this paper.
介绍了内外层复合工艺、外覆防腐技术、管体间焊接工艺和双金属复合管的性能和使用。
Dimension was resumed by adopting good self - fluxing alloy laser welding technology, and then the surface was enhanced by laser alloying technology.
先采用自熔性好的合金激光熔覆恢复尺寸，再用激光合金化强化表层。
The technology of plasma-jet surface metallurgy with the else corresponding technology such as plasma build-up welding technique is compared.
对等离子束表面冶金涂层技术与其他相近技术进行了比较。
Will study summary especially in different orifice group for precision condition take off , implement single surface to weld the two-sided shape technical and technology effect of welding thoroughly.
特别要研究总结在不同管口组对精度条件下，实施单面焊双面成形根焊的技术和工艺效果。
The invention has the advantages of reasonable structure, advanced technology, bright and clean surface of the product, non-welding connection, etc.
本发明具有结构合理，工艺先进，产品光洁，无焊接 等优点。
The invention has the advantages of reasonable structure, advanced technology, bright and clean surface of the product, non-welding connection, etc.
本发明具有结构合理，工艺先进，产品光洁，无焊接 等优点。
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