Copper Pipe Gas Welding Equipment

Copper pipe gas welding equipment includes oxygen cylinder, acetylene cylinder, decompressor, temper insurer and torch.
1. Oxygen cylinder volume 40L, working pressure 15MPa, the appearance of sky blue, black paint “oxygen”. Oil contamination should be prevented in storage and use; it should be placed smoothly and reliably, and should not be mixed with other cylinders; no exposure, roasting and knocking should be allowed to prevent explosion. When using oxygen, the oxygen in the bottle should not be exhausted, and at least 100-200 kPa should be left to remove dust and avoid mixing with other gases when refilling oxygen.
2. Acetylene bottle volume 40L, working pressure 1.5MPa. Appearance white, red paint “acetylene”, “not near fire”. The bottle body is filled with porous fillers filled with acetone, which can make acetylene stored stably and safely in the bottle. When using acetylene bottles, besides observing the requirements of oxygen cylinders, attention should also be paid to the following points: the temperature of the bottle body should not exceed 30-40 C; when handling, loading, unloading, storing and using, it should be erected and placed firmly, and it is strictly forbidden to lie on the ground and use directly. Once using the lying acetylene bottles, it must be erected first, then rested for 20 minutes, and then connected. Acetylene decompressor after use; not subject to severe vibration and so on.
3. The regulator which reduces high pressure gas to low pressure gas. For gases of different properties, special pressure reducers that meet their respective requirements must be selected. Usually, the working pressure required for gas welding is generally low, such as oxygen pressure is generally 0.2-0.4 MPa, acetylene pressure is not more than 0.15 MPa. Therefore, the output gas pressure in the cylinder must be depressurized before it can be used. The function of the decompressor is to reduce the gas pressure and keep the gas pressure transmitted to the torch stable so as to ensure that the flame can burn steadily. The pressure reducer should be firmly installed on the special cylinder. All kinds of special gas pressure reducers are forbidden to be replaced or replaced.
4. Flame burns outside the welding nozzle of the torch during normal gas welding of the temper insurer, but when the gas supply is insufficient, the welding nozzle is blocked, the welding nozzle is too hot or the welding nozzle is too close to the welding piece, the flame will burn back along the acetylene pipeline. The phenomenon that the flame enters the nozzle and burns backward is called tempering. If tempering spreads to acetylene bottles, explosion accidents may occur. The function of tempering safety device is to intercept tempering gas and ensure the safety of acetylene bottle.
5. The function of welding torch is to mix acetylene and oxygen evenly in a certain proportion, eject from welding nozzle, ignite and burn, and produce gas flame. All types of torches are equipped with 3 to 5 different size nozzles for welding different thickness of weldments.