As foreign technology introduce, by Jinan factory of the 2nd machine tool applied Φ above all 1981 2 gas of CO of 1.6 solid core protect solder technology to replace American VERSON gas of rich argon of 2.4 medicine core protects the Φ of company of compressor of complete steel machine solder craft, large to compressor weldment solders craft undertook tackling key problem, gain a success.
This project won award of third class of achievement of progress of mechanical ministry science and technology. Factory of 2 machine tools applied Qiqihaerdi 1986 gas of rich argon of 1.2 solid core protects Φ solder technology, solved compressor of large weldment solder problem, use technology of v of copper of filament argon arc, wait for v of layer of workpiece surface copper to piston, air cylinder, the copper that replaces our country tradition is covered score a success. Factory of the first machine tool applied Jinan first on the laminose case structural member in the machine tool 1992 gas of CO2 of 0.8 solid core protects Φ solder. "75 " during, factory of the 2nd machine tool returns Jinan to protected CO2 gas solder to use compressor the lengthen of taut bolt solders on, this project catchs industry of mechanical ministry machine tool " 75 " craft achievement is second-class award. Current, aeriform protection solder efficient solder technology, oneself is extensive the spare parts such as the pipeline flange that after applying at axis of machine tool lathe bed, gear, prejudicial body, rocker, cylinder body, solder, does not machine and case, oneself one of main technology that make machine tool industry solder.
