Prefabrication of steel components
The prefabrication and assembly of steel components on the steel platform according to the installation sequence and process requirements shall ensure the quality of the welding.
The spacing between the splicing seam of the splicing flange plate of the section steel and the splicing seam of the web shall be greater than 200 mm. The length of the flange plate splicing shall not be less than 2 times the width of the plate; the splicing width of the web shall not be less than 300 mm and the length shall not be less than 600 mm.
In order to facilitate the welding and ensure the welding quality, the reinforcing ribs, connecting plates, backing plates and picking beams (beams) on the columns and beams should be grouped and welded on the ground steel platform according to the construction drawing size.
In addition to the construction drawings and specifications required for the steel components prefabricated on the steel platform, the processability and installation dimensions of the on-site installation should also be considered.
Self drilling Screw made of 410 stainless steel, high hardness (40 Rockwell C), steel process.
Drilling screw is also very strong hardness, compared to the ordinary screw up, not only to maintain the ability is good, the connection object effect is also very strong, for the performance of the screw, are generally does not need auxiliary processing, can be directly on the object directly drill a Kong Sue into objects, not just use rise very convenient, Also can greatly improve the efficiency of work. This kind of drilling screw can be said to be the first choice of workers in various fields.
So what is the use of drilling screws?
1 stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2 metal curtain wall metal light compartment and other indoor and outdoor installation.
General Angle steel, channel steel, iron plate and other metal materials combined installation.
4, automobile, container, shipbuilding, refrigeration equipment and other assembly projects.
Self drilling screw,hex Self drilling screw,truss Self drilling screw,flat Self drilling screw,pan Self drilling screw
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