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火焰喷涂安全规程 | 2011-5-30 10:03:00
火焰喷涂安全规程
1.使用氧—乙炔气体各减压表必须经计量部门检验合格产品或定期校验。
2.经常保持喷枪清洁,喷咀各小孔通畅无积炭,必要时用通针φ0.5~0.6mm钢丝疏通,防止杂质进入乙炔回火防止器及各气路孔内。
3.如果使用快速接头出现漏气、乙炔回火防止器内滤网积炭、乙炔压力过低或流量供不上等可能出现的回火,应立即关闭喷枪乙炔阀,将空气阀开至最大吹冷混合器和喷咀,再将氧气阀打开吹出回火积炭后再关闭,查出原因并排除,重新点火使用。
4.回火原因及排除办法:喷咀与混合器连接螺母末拧紧漏气,再将混合器从枪体上轴线拨出,用台钳夹住混气组件六方分别检查氧乙炔导管上2×φ8“O”型橡胶密封圈更换新的重新装配使用。
5.有关安全事项请按《氧—乙炔气焊工》有关操作规程执行。
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