Manufacturing process of automobile acoustic part spare tire cover plate
A technology for acoustic components and spare tire covers, which is applied in the directions of layered products, chemical instruments and methods, lamination devices, etc., can solve the problems of heavy product weight, unfavorable handling, high cost, complicated preparation process, etc., and achieves low cost, The effect of simple process method, simple structure and preparation process
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[0014] Example 1
[0015] A production process of a spare tire cover for automotive acoustic components, the steps are as follows:
[0016] (1) Preparation of PU composite board: take PU and GF composite board and compound needle punched non-woven fabric on the surface to obtain PU composite board;
[0017] (2) Base material drying temperature: The PU composite board prepared in step (1) is transported by a conveyor and placed in an oven for heating and drying of the base material; the temperature of the upper temperature zone of the oven is set to 200°C, the temperature of the lower temperature zone Set to 250°C, and bake temperature time is 90s;
[0018] (3) Press molding: Put the PU composite sheet after drying in step (2) into the mold and lay the fabric on the surface of the PU composite sheet for press molding. The molding pressure is 180 bar, and the molding time is 50 seconds. Semi-finished products of tire cover;
[0019] (4) Attachment installation: Place the semi-finished p...
Example Embodiment
[0023] Example 2
[0024] A production process of a spare tire cover for automotive acoustic components, the steps are as follows:
[0025] (1) Preparation of PU composite board: take PU and GF composite board and compound needle punched non-woven fabric on the surface to obtain PU composite board;
[0026] (2) Base material baking temperature: The PU composite board prepared in step (1) is transported by a conveyor device and placed in an oven for heating and drying the base material; the temperature of the upper temperature zone of the oven is set to 200-250°C, the lower temperature The zone temperature is set at 250-300℃, and the drying time is 75-90s;
[0027] (3) Press molding: Put the PU composite sheet after drying in step (2) into the mold and lay the fabric on the surface of the PU composite sheet for press molding. The molding pressure is 200bar and the molding time is 40s. Semi-finished products of tire cover;
[0028] (4) Attachment installation: Place the semi-finished pr...
Example Embodiment
[0032] Example 3
[0033] A production process of a spare tire cover for automotive acoustic components, the steps are as follows:
[0034] (1) Preparation of PU composite board: take PU and GF composite board and compound needle punched non-woven fabric on the surface to obtain PU composite board;
[0035] (2) Base material drying temperature: The PU composite board prepared in step (1) is transported by a conveyor and placed in an oven for heating and drying the base material; the temperature of the upper temperature zone of the oven is set to 230°C, and the temperature of the lower temperature zone Set to 270℃, and the drying temperature time is 80s;
[0036] (3) Press molding: Put the PU composite sheet after drying in step (2) into the mold and lay the fabric on the surface of the PU composite sheet for press molding. The molding pressure is 190bar and the molding time is 45s. Semi-finished products of tire cover;
[0037] (4) Attachment installation: Place the semi-finished prod...
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