Selection of steel structure materials and welding requirements

1, Now the steel structure multi-purpose channel steel, channel steel on the market has more than ten specifications, different thickness, the choice of appropriate material is the key, the best use of national standard steel, with a certain quality assurance.

2, fixed wall requirements. The important fixed point of steel stair must be concrete. If it is hollow brick wall or bubble brick wall, be sure to dig a location for concrete embedding, because only concrete can better eat and live expansion screws. Only expansion screws can be labored, so labored is no problem. Steel structure stairs are built on the wall, if the load-bearing is not very good, it is easy to fall off, causing a very serious accident, so the reinforcement of the buried ground must be firm.

3. Welding. The welding of the steel structure stair must be all welding, and the construction work is carried out by the professional welder, which can guarantee the welding quality of the steel structure stair very well, and guarantee the welding standard of the steel structure stair.

4, rust prevention. All steel parts should be made anti-rust paint, welders should pay special attention to contact, general factories are made anti-rust paint after welding on the spot, and then pay attention to, after welding, also let them repaint solder joints. Improving the anti-corrosion performance of steel stairs can effectively improve its service life.

5, corner of the place, also want to use channel steel unicom, not an independent buried in the wall, but the steel structure welded into a complete whole, not by independent fixed point to force, but a whole pulling each other, so the steel structure must be welded into a whole, as far as possible not to destroy the original concrete beam.