Manufacturing process of single-piece warp-knitted car roof
A technology of automobile canopy and manufacturing process, applied in metal processing and other directions, can solve the problems of poor appearance, heavy product weight, easy to be dirty, etc., and achieve the effects of easy molding, good appearance and pollution reduction.
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Embodiment 1
[0018] Embodiment one: a kind of manufacturing process of single-body warp-knitted cloth car roof, comprises following processing steps:
[0019] (1) Material laying: spread the polyester warp-knitted fabric on the fabric laying platform, and the weight of the polyester warp-knitted fabric is 100g / ㎡;
[0020] (2) Baking temperature softening: send the polyurethane composite board into the oven for baking temperature softening, the temperature is 150°C, and the baking time is 90 seconds; the materials of the polyurethane composite board are non-woven fabric and glass fiber from bottom to top. Felt, polyurethane foam, glass fiber felt, PE film; the weight of the polyurethane composite board is 700g / ㎡;
[0021] (3) Molding: Send the polyurethane composite board softened by baking temperature into the mold cavity of the car roof, and transport the polyester warp-knitted fabric in step (1) above the polyurethane composite board, and the polyester warp-knitted fabric and polyurethan...
Embodiment 2
[0023] Embodiment two: a kind of manufacturing process of warp-knitted single-body car roof, comprising the following process steps:
[0024] (1) Material laying: spread the polyester warp-knitted fabric on the fabric laying platform, and the weight of the polyester warp-knitted fabric is 300g / ㎡;
[0025] (2) Baking temperature softening: send the polyurethane composite board into the oven for baking temperature softening, the temperature is 300°C, and the baking time is 90 seconds; the materials of the polyurethane composite board are non-woven fabric and glass fiber from bottom to top. Felt, polyurethane foam, glass fiber felt, PE film; the weight of the polyurethane composite board is 1000g / ㎡;
[0026] (3) Molding: Send the polyurethane composite board softened by baking temperature into the mold cavity of the car roof, and transport the polyester warp-knitted fabric in step (1) above the polyurethane composite board, and the polyester warp-knitted fabric and polyurethane ...
Embodiment 3
[0028] Embodiment three: a kind of manufacturing process of single-body warp-knitted cloth car roof, comprises following processing steps:
[0029] (1) Material laying: spread the polyester warp-knitted fabric on the fabric laying platform, and the weight of the polyester warp-knitted fabric is 200g / ㎡;
[0030] (2) Baking and softening: send the polyurethane composite board into the oven for drying and softening, the temperature is 200°C, and the baking time is 60 seconds; the materials of the polyurethane composite board are non-woven fabric and glass fiber from bottom to top. Felt, polyurethane foam, glass fiber felt, PE film; the weight of the polyurethane composite board is 800g / ㎡;
[0031] (3) Molding: Send the polyurethane composite board softened by baking temperature into the mold cavity of the car roof, and transport the polyester warp-knitted fabric in step (1) above the polyurethane composite board, and the polyester warp-knitted fabric and polyurethane One side of...
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