How to weld two channels
In general, during the welding process, the workpiece and the solder melt to form a melting area, and the connection between the materials is formed after the cooling and solidification of the molten pool. This process usually involves applying pressure. There are many sources of energy for welding, including gas flares, electric arcs, lasers, electron beams, friction, and ultrasound. Both sides of the weld will be subjected to welding heat during welding, and the organization and performance changes will occur, and this area is called as the heat affected zone. Welding due to the workpiece material welding materials, welding current and other aspects of the difference.
What should we pay attention to when choosing channel steel
When selecting channel steel, it is necessary to understand the specification and classification of channel steel. In addition, light channel steel has narrow legs, thin waist and light weight than general channel steel. No. 18-40 is a large channel steel, and No. 5-16 is a medium-sized channel steel. The imported channel steel indicates the actual specification scale and relevant specifications. The import and export orders of channel steel are generally based on the specifications required in the application after confirming the corresponding carbon knot steel (or low alloy steel) steel number. In addition to the specification number, the channel steel has no specific composition and function series, and the delivery length of the channel steel is divided into two kinds of fixed length and multiple length, and the tolerance value is ruled in the corresponding specification. Channel steel is often used in combination with I-steel. Channel steel can be divided into four kinds according to the shape: cold-formed equilateral channel steel, cold-formed unequal channel steel, cold-formed inner wound channel steel, cold-formed outer wound channel steel.
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