Before the master, who has firmly decided to do body repair in his garage, the need to purchase a semiautomatic welding machine immediately arises. In order to choose the right equipment, in addition to studying its characteristics, it is also necessary to take into account the location and the amount of work to be done.
Instructions
Step 1
Before purchasing a semiautomatic welding machine, find out exactly the characteristics of your power supply network: voltage; number of phases; permissible current consumption; permissible current of the electric meter; the material of the wires in the wiring and the size of their cross-section; what voltage the residual current device is designed for and the total load of constantly switched on consumers.
Step 2
Think about the purpose of purchasing the unit and what tasks you plan to assign to it. Also consider the types and thickness of materials to be welded and the required quality of work performed.
Step 3
Gather as much information as possible about the equipment offered in your area and study it carefully. Find out if the manufacturers of this type of equipment support their products (repair, maintenance, supply of spare parts, consultations, etc.). Inquire about supplies to your region of welding consumables, protective equipment and wear parts.
Step 4
When welding with semiautomatic devices that work in an inert gas environment, an electric arc burns between the material and the consumable welding wire at a constant current. The gas supplied through the torch protects the welding site from a powerful oxidizer - oxygen. This semiautomatic device is perfect for welding thin sheet metal such as car bodies.
Step 5
It is customary to divide the work of the apparatus into ten-minute cycles. Therefore, if the instruction indicates the value of PV - 40% / 340 A, then the unit at a current of 340 A can work no more than four minutes, it will need to cool down for six minutes. The lower the current, the longer the unit will be able to operate. For example, a value of 100% / 200 A indicates that at a current of 200 A, the equipment will be able to operate continuously, without interruptions for cooling.
Step 6
The burner, through which wire and gas is supplied to the working area, can be connected to the device through a special connector or be permanently connected to it.
