OK7 Set Design Workshop
Gas and spot welding
Gas welding
In gas welding, the heat required for melting the material is generated by a gas flame. The purpose of the gas flame is also to protect the welds from the oxidising effect of air. The gas consists of acetylene to which oxygen is mixed in the welding torch to obtain sufficient heat. The welding apparatus can also be used for heating and brazing of bendable steel, as well as flame cutting of steel.
Use of gas welding equipment always requires the permission and immediate supervision of the workshop master.
Gas welding requires:
- oxygen and acetylene gas cylinders,
- pressure regulators,
- flashback arrestors,
- hoses, a welding torch and threads
- as well as appropriate protective equipment.
Lubricating the oxygen bottle valve and gauge with grease is strictly prohibited due to the risk of explosion.
Spot welding
In spot welding, the electrodes compress the pieces to be welded together, and the current between the electrodes melts a pointed welding between the pieces. Spot welding can be used to firmly connect two steel plates. Maximum material thickness is 2mm / plate.
Welding:
- Select the suited welding current and time for the material thickness from the welding machine’s control panel.
- Place two of your welding pieces between the electrodes and press the handle all the way until the welding is complete.
Please note! In welding, impurities between the materials splash into the environment as hot sparks. Welding splashes are also generated when using an excessive welding current.