Welding and cutting in1949 Beijing has geo-drilling electric welding and cutting etc oxyacetylene flame manual operation .

焊接与切割。1949年，北京已有气焊、电 弧焊及氧乙炔 火焰切割等手工作业。

Welding sequence of ring welds and welding initial position play an important pole in welding distortion of base flame assembly of Excavator . Analysis and Control of Welding Distortion in Multi-Row Packed Finned Tube Heat Exchanger Bundles During Manufacturing

挖掘机焊接制造中，环焊缝的焊接顺序、焊接起始位置对 焊接 残余变形有重要影响。多排密集翅片管管束 焊接变形的分析和控制

For replacing coke oven flame welding material imported from foreign country based on experiment we developed CAE type flame welding material .

为替代从国外进口的焦炉火焰 焊 补料，实验研制了CAE型 火焰焊补料。

This paper deals with how thermal inertia and adiabatic effect of an object welding And what flame should be applied in oxy-acetylene welding with silver-copper solder and the high temperature area of flame are also discussed then the effect of free oxygen and free carbon on welding is analyzed .

探讨了物体的热惰性和绝热效应对 焊接的影响，讨论了采用银铜焊料进行氧－乙炔焊时应该运用的 火焰和火焰的高温区域.分析了自由氧和自由碳在焊接中的影响。

The welding of ATV motorcycle flame is closely related with the frame material the fixing of technological equipment types of wire for welding welding current and welding procedures .

ATV车架 焊接的好坏与车架材料、工装固定、焊丝种类、焊接电流和焊接顺序等密切相关， 焊接 前可结合CAE分析和 残余应力分布的预判来确定车架材料及焊接顺序；

The research on the method of spray welding using oxy-acetylene flame to form a deposit made from a certain kind of wear-resistant compound-alloy powder to prolong the life of machine parts

耐磨复合合金粉末氧乙炔 焰喷 焊提高零部件使用寿命的研究

In the fast cast iron repair welding technology with the heating of oxy-acetylene flame faster hot-spotting and shorter residence time at 950 ~ 1 050 ℃ can effectively control the volume of austenite and its degree of homogenization .

在快速铸铁补 焊技术的氧乙炔 火焰加热条件下，尽可能快速地进行局部加热和缩短 焊接温度时的停留时间，可以有效控制高温时铸铁的奥氏体转变量和奥氏体的均匀化程度。

However gas welding equipment a simple flexible operation convenient and easy to control the flame without power supply .

但是 气焊设备简单、操作灵活方便， 火焰易于控制，不需要电源。

So before welding the process flame cutting groove is feasible .

所以， 焊前直接采用 火焰切割坡口的工艺可行。

The continuous study on spraying welding technology of oxygen acetylene flame

氧乙炔 焰喷 焊 工艺 参数及 规范的确定

Effect on metallographic organization and mechanics properties of welding rail joints by flame normalizing

火焰正火对钢轨 焊接接头金相组织及力学性能的影响