Production technique for soft-hard-layer carpet of automobile
A production process, soft and hard technology, applied in the direction of layered products, layered product processing, special positions of vehicles, etc., can solve the problem of difficult control of sound absorption and insulation performance, and achieve good solvent adhesive adhesion, good melting effect, The effect of superior mechanical properties
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[0018] Example 1:
[0019] (1) Put the hard layer fiber felt and the soft layer fiber felt into a forming mold separately at a mold temperature of 130°C, and form it by hot pressing to obtain a certain thickness; the holding time is 1.5 min, and the hot pressing pressure is 14 MPa; Move the thickness-controlled hard-layer fiber felt and soft-layer fiber felt from the hot pressing mold to the cooling fixture for vacuum adsorption and shaping, and the cooling time is 80s;
[0020] (2) Put the blanket into the oven, and melt the rubber powder or film surface at a temperature of 250°C. After the drying temperature is completed, quickly cover the prepared hard layer fiber felt, and immediately put it into the forming mold and press Molding; mold temperature is normal temperature, holding time is 80s, and pressure is 13MPa;
[0021] (3) Spray solvent glue on the surface of the hard layer fiber felt and the surface of the soft layer fiber felt, and put the two into the mold for pressing an...
Example Embodiment
[0023] Example 2:
[0024] (1) Put the hard-layer fiber felt and the soft-layer fiber felt into a forming mold separately at a mold temperature of 250°C, and form it by hot pressing to obtain a certain thickness; the holding time is 3 min, and the hot pressing pressure is 10 MPa; The thickness-controlled hard-layer fiber felt and soft-layer fiber felt are respectively moved from the hot pressing mold to the cooling fixture for vacuum adsorption and shaping, and the cooling time is 50s;
[0025] (2) Put the blanket into the oven, and melt the rubber powder or film surface at a temperature of 400℃. After the drying temperature is completed, quickly cover the prepared hard layer fiber felt, and immediately put it into the forming mold and press Molding; mold temperature is normal temperature, holding time is 60s, pressure is 17MPa;
[0026] (3) Spray solvent glue on the surface of the hard layer of fiber felt and the surface of the soft layer of fiber felt, and put the two into the mol...
Example Embodiment
[0028] Example 3:
[0029] (1) Put the hard-layer fiber felt and the soft-layer fiber felt into a forming mold separately at a mold temperature of 200°C, and form it by hot pressing to obtain a certain thickness. The holding time is 4min, and the hot pressing pressure is 20MPa; the thickness-controlled hard-layer fiber felt and soft-layer fiber felt are respectively moved from the hot pressing mold to the cooling fixture for vacuum adsorption and shaping, and the cooling time is 60s;
[0030] (2) Put the blanket into the oven, and melt the rubber powder or film surface at a temperature of 300℃. After the drying temperature is completed, quickly cover the prepared hard layer fiber felt, and immediately put it into the forming mold and press Molding; the mold temperature is normal temperature, the pressure holding time is 120s, and the pressure is 10MPa;
[0031] (3) Spray solvent glue on the surface of the hard layer fiber felt and the surface of the soft layer fiber felt, and put th...
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