工艺：铜嘴焊丝气体的选型及焦点的确认

一.铜嘴的使用

铜嘴的分类主要区分：是否送丝，焊丝的大小，焊接角度，如上图所示，如内角送丝焊接1.0的焊丝则使用AS-12的铜嘴

The classification of the copper nozzle is mainly divided into: whether the wire is fed, the size of the welding wire, and the welding Angle, AS shown in the figure above, such as the welding wire of the internal Angle wire feeding 1.0, the AS-12 copper nozzle is used

二.焊丝的选择

按照焊接板材的不同，我们需要使用不同的焊丝（气体保护实芯焊丝）

不锈钢=不锈钢焊丝 如：ER304

碳钢/镀锌板=铁丝

铝=铝丝 (铝焊丝我们建议使用5系以上的合金铝，硬度较高，不容易卡死)

二. Choice of welding wire

According to the different welding plates, we need to use different welding wires (gas protected solid core wire)

Stainless steel = Stainless steel welding wire such as: ER304

Carbon steel/galvanized sheet = wire

Aluminum = aluminum wire (aluminum welding wire we recommend using more than 5 series of alloy aluminum, high hardness, not easy to stick)

三.气体的选择

①常见氮气或氩气两种，焊接不锈钢我们建议使用氮气，焊接效果更好，请勿使用混合/二氧化氮气体

②气压要求：流量表不低于15，压力表不低于3

Three. Gas selection

① Common nitrogen or argon two, welding stainless steel we recommend the use of nitrogen, welding effect is better, do not use mixed/nitrogen dioxide gas

② Air pressure requirements: flow meter is not less than 15, pressure gauge is not less than 3

四.焦点

通常情况下，使用0焦焊接

Iv. Focus

Normally, 0 coke welding is used