Manufacturing method for car damping materials

Abstract

The invention provides a manufacturing method for car damping materials. The manufacturing method comprises the steps of: conducting banburying on NBR (Nitrile-Butadiene Rubber), SBR (Styrene Butadiene Rubber), rubber peptizer, CaCO3, and liquid isoprene rubber materials in a banbury mixer, kneading the master batch subjected to banburying, adding nano activated calcium carbonate for kneading, adding DINP (Diisonony Phthalate) for kneading, adding PVC (Polyvinyl Chloride) paste resin, DCP-40, powder dicyandiamide and a foaming agent OBSH for kneading, then adding PU (Poly Urethane) modified epoxy resin for kneading, then adding cross-linking agent trimethylolpropane trimethacrylate for kneading for 10 minutes, finally adjusting the viscosity by the DINP, filtering by a hopper and packaging to form finished products. The damping materials are used for binding internal and external boards of a car, meets the requirement on automatic production in the automobile industry, can well bind the internal and external boards of the car, and improve the production efficiency, and can also play a damping role after being foamed and swelled, wherein the cost on manually binding sheet damping materials can be lowered.

Description

technical field [0001] The invention relates to the technical field of automobile materials, in particular to a manufacturing method of automobile vibration-damping materials. Background technique [0002] In recent years, in order to improve production efficiency, automobile manufacturers have been pursuing mechanized operations. The bulk damping materials used between the inner and outer panels of automobiles can no longer meet the requirements of automatic production of automobiles. Since the bulk materials need to be manually pasted to the corresponding parts, There are many sticking parts, which is inconvenient to improve production efficiency. Automobile designers have put forward new requirements for manufacturers to produce a paste-like vibration-damping material, which can meet the needs of robotic hands and give full play to the bonding and vibration-damping properties of block materials. , It can also meet the requirements of the entire automobile production indus...

AI Technical Summary

Problems solved by technology

[0002] In recent years, in order to improve production efficiency, automobile manufacturers have been pursuing mechanized operations. The block-shaped damping materials used between the inner and outer panels of automobiles can no longer meet the requirements of automatic production of automobiles. Since the block-shaped materials need to be manually pasted to the corresponding parts, There are many sticking parts, which is inconvenient to improve production efficiency. Automobile designers put forward new requirements for manufacturers to produce a paste-like vibration-damping material, which can meet the requirements of robotic operations and can also exert the bonding and vibration-damping properties of block materials. , It can also meet the requirements of the entire automobile production process. It has to go through the production processes of washing, alkali hydration, phosphating, electrophoresis and other production processes in the automobile production line. In particular, the gap between the door reinforcement plate and the outer plate of some models is large, generally exceeding A gap of 30 cm should ensure that the material does not flow in these parts. Some manufacturers produce domestically and ship them to overseas production lines for assembly. This requires automobile manufacturers to ensure production efficiency and prevent material flow at the same time. Performance requirements, how can we not only meet the requirements of automated production, but also overcome the defects of many paste-like materials and vibration-damping materials? This is an urgent problem that automobile production material manufacturers need to solve