The external quality of galvanized steel bar grating has uneven color, whiteness, impurities, air bubbles (facet, middle, bottom), layering, thickness deviation, insufficient curing degree, resin-rich layer, cracking (caused by curing, resin-rich, demoulding) ), thimble defects, warping, repair defects and other defects, a set of strict quality inspection standard system and specifications must be established. The plug-in steel grid frame, also known as the reverse plug-in steel grid frame, is made of ordinary low-carbon flat steel, stainless steel, brass plate and aluminum plate of a certain size through the processes of slotting (hole), plugging, welding, finishing, etc. processed. The solder joints of the product are firm, the hole spacing is uniform, the design is beautiful, convenient and practical.
The plug-in steel grid has the characteristics of high strength, corrosion resistance and maintenance-free of ordinary steel grid, and has the characteristics of uniform and precise combination, light and exquisite structure, natural harmony and elegant style. It is both a usable product and a work of art. It has been widely used.
The material of the steel grating can be flat steel with a width of 20-70 mm and a thickness of 2-10 mm, and twisted square steel (cross bar) made by drawing and torsion of 6-8 mm. The flat steel is placed side by side in parallel, and the twisted square steel is placed vertically and horizontally on the top of the flat steel. They are firmly pressure-welded together by a high-power welding Transformer model and a high-pressure piezo-resistive welding machine.
The flat steel mainly plays the role of bearing, and the twisted square steel mainly plays the role of fixing the flat steel and preventing slipping. The main requirements of the product are implemented, and the material is ordinary carbon steel. There are generally two types of products (that is, the distance between the horizontal bars is 50mm and 100mm), and there are mainly three series (that is, the distance between the vertical bars is 30, 40, and 50mm) and more than 159 varieties. It can also be processed into any size and shape according to user requirements.
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