气焊设备 吸气式手动吹管 规范和试验

[中文适用范围]： 本文件规定了空气吸入式手动吹管的要求和测试方法。本文件适用于使用燃料气体和吸入空气（喷射式吹管）并供手动使用的钎焊、焊接、加热、熔合和其他相关热工艺的吹管。本文件适用于： — 空气吸入式手动吹管，通过气体供应软管以调节器控制的压力供应气相燃料气体； — 空气吸入式手动吹管，通过气体供应软管以容器压力供应气相液化燃料气体； — 所谓的液相吹管，以液相供应燃料气体，热蒸发发生在吹管内。本文件不适用于燃料气体以液相离开喷射器的吹管，也不适用于所谓的“筒式”吹管，其中气体供应直接固定在吹管上并可能构成柄部。注：图 1 至图 4 仅供参考，便于解释术语。图 1 至图 4 并未指定结构细节，这些细节由制造商自行决定。 [外文原描述]： This document specifies requirements and test methods for air-aspirated hand blowpipes. This document applies to blowpipes for brazing, soldering, heating, fusion and other allied thermal processes which use a fuel gas and aspirated air (injector-type blowpipes) and are intended for manual use. This document is applicable to: — air-aspirated hand blowpipes which are fed with a fuel gas in the gaseous phase, at a controlled pressure by a regulator, through a gas supply hose; — air-aspirated hand blowpipes which are fed with a liquefied fuel gas in the gaseous phase at the container pressure, through a gas supply hose; — so-called liquid-phase blowpipes which are fed with a fuel gas in the liquid phase, and where thermal evaporation takes place within the blowpipe. It does not apply to blowpipes in which the fuel gas leaves the injector in the liquid phase, or to so-called “cartridge” blowpipes where the gas supply is fixed directly onto the blowpipe and possibly constitutes the shank. NOTE Figures 1 to 4 are given for guidance only, to facilitate the explanation of the terms. They do not specify the construction details, which are left to the discretion of the manufacturer.