Welding & Cutting News
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Comparison of the difference between TIG, MIG and MAG welding! Understand once and for all!
The difference between TIG, MIG and MAG welding 1. TIG welding is generally a welding torch held in one hand and a welding wire held in the other, which is suitable for manual welding of small-scale operations and repairs. 2. For MIG and MAG, the welding wire is sent from the welding torch thro...Read more -
The difference between fixed welding joint, rotating welding joint and prefabricated welding joint in pipeline welding
Rotation welding corresponds to fixed welding in pipeline welding. Fixed welding means that the welding joint cannot move after the pipe group is aligned, and the welding is performed according to the change of the welding position (horizontal, vertical, upward, and mid-level changes) during the ...Read more -
Welding technical operation essentials
The common sense and method safety of electric welders, the operating procedures are as follows: 1. You should master general electrical knowledge, follow the general safety regulations of welders, and be familiar with fire extinguishing technology, first aid for electric shock and artificial re...Read more -
Detailed explanation of spot welding process
01. Brief description Spot welding is a resistance welding method in which the weldment is assembled into a lap joint and pressed between two electrodes, and the base metal is melted by resistance heat to form a solder joint. Spot welding is mainly used in the following aspects: 1. Lap joint of s...Read more -
What are the methods of non-destructive testing of welds， Where is the difference
Non-destructive testing is to use the characteristics of sound, light, magnetism and electricity to detect whether there is a defect or inhomogeneity in the object to be inspected without damaging or affecting the performance of the object to be inspected, and to give the size, position, and loca...Read more -
Summary of detailed operation methods for welding low temperature steel
1. Overview of cryogenic steel 1) The technical requirements for low-temperature steel are generally: sufficient strength and sufficient toughness in a low-temperature environment, good welding performance, processing performance and corrosion resistance, etc. Among them, the low temperature toug...Read more -
Common Welding Defects and Solutions for Aluminum Alloy Welding
The selection of aluminum and aluminum alloy welding wire is mainly based on the type of base metal, and the requirements for joint crack resistance, mechanical properties and corrosion resistance are comprehensively considered. Sometimes when a certain item becomes the main contradiction, the se...Read more -
Zero-based hands-on argon arc welding
（1） Start up 1. Turn on the power switch on the front panel and set the power switch to the “ON” position. The power light is on. The fan inside the machine starts to spin. 2. The selection switch is divided into argon arc welding and manual welding. （2） argon arc welding adjust...Read more -
What welding method should be used for welding iron, aluminum, copper and stainless steel
How to weld mild steel? Low carbon steel has low carbon content and good plasticity, and can be prepared into various forms of joints and components. In the welding process, it is not easy to produce hardened structure, and the tendency to produce cracks is also small. At the same time, it is n...Read more -
How to distinguish molten iron and coating during manual arc welding
If it is manual arc welding, first of all, pay attention to distinguish molten iron and coating. Observe the molten pool: the shiny liquid is molten iron, and what floats on it and flows is the coating. When welding, pay attention to not let the coating exceed the molten iron, otherwise it is eas...Read more -
Harmful factors of welding materials, what should be paid attention to when using welding materials
Harmful factors of welding materials (1) The main research object of welding labor hygiene is fusion welding, and among them, the labor hygiene problems of open arc welding are the biggest, and the problems of submerged arc welding and electroslag welding are the least. (2) The main harmful fac...Read more -
Generation and Elimination of DC Component in AC TIG Welding
In production practice, alternating current is generally used when welding aluminum, magnesium and their alloys, so that in the process of alternating current welding, when the workpiece is the cathode, it can remove the oxide film, which can remove the oxide film formed on the surface of the mol...Read more
