东风4C型机车柴油机机体采用铸焊结构。
The engine block for DF 4C diesel locomotives uses cast welding structure.
结合大型钛材铸焊结构高速鼓风机叶轮的研制，阐述了其叶轮的制造工艺特点。
Combining with development of high speed blower impeller with large titanium material cast welding structure, the manufacturing technical feature of the impeller is set forth.
通过对铸焊齿轮的材料和结构的分析，利用“加热减应区”法及适当的装配焊接顺序，成功地焊接了异种金属的合金钢齿轮。
Through the analysis of material and construction, the dissimilar steel gear is successfully welded using stress reduction zone by heating and proper assemble and welding sequence.
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