Cold roll forming equipment forming roller to move the body and forming, it is divided into two categories according to the structure: the overall shape of the roller and the combination forming roller. The disadvantage of the integral forming roller is to manufacture complex, and can not replace the easy wear part of the pass, so it is not widely used. The advantages of combination and forming is various and has the advantages of simple processing, can be replaced individually pass in the easy wear parts, gaskets are available to correct pass in the roll gap, roll specifications can be unified, thereby reducing forming machine of molding and reserves. Therefore, this kind of molding and get wide application. But the combination of roll forming and disadvantages, produced in the shape of the axial force is transferred to the roller of the fastening nut, the groove width change, affect the product size precision, now Caigang equipment, C type steel equipment are also using this combination of forming rollers. Roll forming equipment, the surface shall be free from bubbles, cracks, scarring, folding, inclusion, and edge delamination, allowing not greater than 10% of nominal thickness slightly concave, convex, indentation, hairline, bruises, and pressed into the iron oxide. The surface defects of the cold roll forming equipment can be cleaned up by the method of repairing and grinding, but the depth of the cleaning shall not exceed 10% of the nominal thickness. For cold formed steel with high surface quality, the technical conditions of the surface quality should be agreed. Cold formed welded hollow steel welded joints shall not be opened, welded, burned, and serious dislocation. The burr at the weld shall be removed, and the inner burr of the weld shall not be cleaned.

Caigang equipment use, must pay attention to the daily maintenance, prolong the service life is very important. It is almost the cold season, to remind you to use the time to pay attention to the following points, to effectively extend the service life of the press.   The welding points of the pressure tile machine 1, the pressure tile machine assembly in the welding stress effect, if the welding piece the restraint degree is small, then the welding part will produce the corresponding size change or the short or the bending or the warping. 2, if the welding parts of a large, such as plate thickness, shape complex or due to the application of the fixture and in a strong constraint, at this time can not be free of deformation, but in the welding stress will produce local strain, and produce a greater residual stress. 3, the peak value of the residual stress in the weld zone can reach the yield strength of the material.   The service life of the pressure tile machine Caigang equipment use, must pay attention to the daily maintenance, prolong the service life is very important. It is almost the cold season, to remind you to use the time to pay attention to the following points, to effectively extend the service life of the press. 1, North users such as because of the cold weather, the Caigang pressure tile machine does not produce, please, the mold must be clean, and the mold surface coated with oil, to prevent rusting. If it is used, the paint is produced. 2, in the case of zero temperature, the pressure tile machine before work to take power over 10 minutes before use, so as to avoid a greater noise. 3, Caigang pressure tile machine hydraulic system is the pumping station, in the winter when used to replace the hydraulic oil in winter. In Caigang pressure tile machine equipment, the different moving parts are coated with oil, in the chain and sprocket best coated with butter and then paper wrapped.