To improve the ductility of pu castor can use this method

Ductility can use this way to improve pu castor, cold castor riveting method that comes natural flow bend deformation of the rivet to metal, will not reduce the notched impact toughness and ductility of material, reduces the rivet and a tangential tensile stress around the pier head too high risk, no broken fiber material flow after riveting, can improve the bearing capacity of the rivet. Will swing cold run castor riveting and traditional stamping hammer, industrial casters riveting do destructive test specimens after know, cold run castor riveting method produced by the coupling strength is about 80% higher than that of traditional castor riveting. After cold run castor riveting rivets almost no deformation phenomenon such as bending, drum abdomen, pier crude. At the same time, connected to the rivet parts without deformation. With stamping hammer, castor riveting, since it is case pressure, impact in full bloom, the defect is more obvious. Cold run castor riveting method on the rivet rivet head of pure rolling without sliding, rivet forming surface roughness only depends on the rivet head, and surface roughness of rivet head easy to guarantee, thus the cold run castor rivet rivet surface is smooth and beautiful is can't be matched by other castor riveting method. Did not make the material material mixing way and mixing time mixing evenly; Construction should be used when power, high speed but the blender. Another reason is basic level processing unclean, do clean up carefully before coating at the grass-roots level, can not have float sand and dust, more should not have hole in the grass-roots, coating layers appear porosity should be dealt with according to the technological requirements, prevent the leakage of coating damage. If discover to there is precipitation phenomenon, quantity should stir well before use, so as not to affect the quality. Coating become warped edge, the edge of the waterproof layer and partial brush on it, and the grass-roots stripping become warped edge. Main reason is the clean, or dry, closed operation is not careful, the seal is not good, become warped edge bottom coating adhesive power is not strong, etc. So at the grass-roots level to ensure clean, dry, to detailed operation. Grassroots have dusting, cracking, peeling, not dry, make coating bonding bad; Base construction should be carefully operation, maintenance, after being dry at the grass-roots level, besmear bottom coating first, after curing, again by the waterproof construction technology of besmear to brush one by one. Increase the ductility of pu castor can use this method, more news and information about pu castor please click: hynews / 270. html