2results about How to "Stress resistant" patented technology

The application discloses a stainless steel and carbon steel composite pipe, which comprises a stainless steel pipe coaxially arranged at an outer layer and a carbon steel pipe at an inner layer, and the stainless steel pipe and the carbon steel pipe are filled and bonded through PE. The application also provides a ring expansion composite system and process, a stainless steel and carbon steel composite pipe, a clamping mechanism symmetrically arranged at two ends of the stainless steel pipe and the carbon steel pipe, a PE supply device for pressing flowy PE into an annular cavity between the stainless steel pipe and the carbon steel pipe through the clamping mechanism, and a heating and heat preserving device for heating and heat preserving the carbon steel pipe. The stainless steel and carbon steel composite pipe has the advantages that the outer layer of stainless steel is used for resisting oxidation and corrosion, the inner layer of carbon steel is used for resisting water pressure, the strength of the composite pipe is ensured, the PE at the middle part is used for bonding the stainless steel layer and the carbon steel layer into a whole, the overall strength of the composite pipe is improved, and the manufacturing difficulty of the composite pipe is reduced.

The utility model relates to the technical field of automobile nameplate provides a kind of anti-deformation automobile nameplate, including automobile nameplate body;Frame is fixedly connected on the outer surface of the automobile nameplate body;Multiple reinforcing ribs are fixedly set on the inner wall of the automobile nameplate body.The utility model, by the reinforcing rib in the inner wall of automobile nameplate body, the strength of automobile nameplate body whole is strengthened, while the material inside automobile nameplate body is composed of compression resistance layer, the compression resistance layer is graphene material, it has excellent mechanical properties, graphene reinforced composite material can significantly improve the strength, toughness and durability of traditional material, waterproof layer is composed of polyethylene macromolecule waterproof membrane, it has very high impermeability and aging resistance, so as to reach can have the characteristics of compression resistance, corrosion resistance, prevent automobile nameplate from being easily deformed when using, improve the comprehensive characteristics of automobile nameplate.