Welding is a very demanding operation in industrial production, and novices who are new to welding will feel confused by all kinds of new terms. If you want to do a good job, you must first sharpen your tools. If you want to quickly get started with the welding profession, you must grasp the basic knowledge of welding. Let's share a little common sense about OTC robot welding.
1. What is welding?
Answer: The process of two or more raw materials (the same or dissimilar), after heating or pressurization or both, to reach the combination between atoms and form a permanent connection is called welding.
2. What is an electric arc?
Answer: The strong and durable gas discharge phenomenon between the two poles supplied by the welding power supply is called arcing. According to the current variety, it can be divided into: communication arc, DC arc and pulse arc. According to the condition of the arc, it can be divided into: free arc and compressive arc (such as plasma arc). According to the electrode data, it can be divided into: melting electrode arc and non-melting electrode arc.
3. What is base material?
A: The metal being welded --- called the base metal.
4. What is a molten droplet?
Answer: The liquid metal droplets that melt after the tip of the wire is heated and transition to the molten pool are called molten droplets--- which are called molten droplets.
5. What is a molten pool?
Answer: The liquid metal part with a certain shape formed on the weldment during fusion welding is called --- weld pool.
6. What is a weld?
Answer: The bonding part formed in the weldment after welding.
7. What is weld metal?
A: The part of metal that is made up of the molten base metal and filler metal (welding wire, electrode, etc.) after solidification.
8. What is maintenance gas?
A: Gases ---and maintenance gases used in welding to maintain metal droplets and molten pools from the intrusion of harmful gases (hydrogen, oxygen, nitrogen) from the outside world.
9. What is welding skills?
Answer: The general term of various welding methods, welding materials, welding processes and welding equipment, as well as their basic theories, is called welding skills.
10. What is the welding process? What's in it?
Answer: A complete set of process procedures and technical regulations in the welding process. The contents include: welding methods, pre-welding preparation, assembly, welding materials, welding equipment, welding sequence, welding operation, welding process parameters and post-welding treatment.
11. What is CO2 welding?
A: MIG/MAG maintenance welding with CO2 purity of > 99.98% as maintenance gas is called CO2 welding.
12. What is MAG welding?
Answer: MIG/MAG maintenance welding with mixed gas 75--95% Ar + 25--5% CO2, (standard ratio: 80% Ar + 20% CO2) as maintenance gas - called MAG welding.
13. What is MIG welding?
Answer: 1. Use high-purity argon Ar≥ 99.99% as the maintenance gas to weld non-ferrous metals such as aluminum and aluminum alloys, copper and copper alloys.
2. The process method of MIG/MAS maintenance welding of solid stainless steel welding wire with 98% Ar + 2%O2 or 95% Ar + 5% CO2 as maintenance gas - is called MIG welding.
3. MIG/MAG maintenance welding with helium + argon lazy mixture for maintenance.
14. What is TIG (Tungsten TIG Welding) welding?
Answer: Lazy gas maintenance arc welding with pure tungsten or activated tungsten (thorium tungsten, cerium tungsten, zirconium tungsten, lanthanum tungsten) as non-melting electrode, referred to as TIG welding.
Welding is a simple job, but it requires professional knowledge when it comes to real operation. If the professional common sense is not clear, perhaps the varieties of welding are understood, and the raw materials and requirements of welding are not grasped, it is easy to form problems with welding quality, and may even present potential safety hazards in the use of the workpiece, resulting in safety accidents.
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