Productive technology of automobile rear shelf
A production process and rear shelf technology, which is applied in the field of automotive interior parts, can solve the problems of the product bearing capacity not meeting the requirements, affecting the health of passengers, and detrimental to the lightweight of the vehicle. broken effect
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Embodiment 1
[0022] Embodiment 1: a kind of production technology of automobile rear shelf, comprises the following steps:
[0023] Product specification: L1300×W650
[0024] (1) Paving: Lay the glass fiber mat on the lower mold, fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 300 g / m 2 ;
[0025] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1600g / ㎡;
[0026] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 53°C, the lower mold temperature is 53°C, the molding time is 470 seconds, and the heating water temperature is: 55°C;
[0027] (4) Cooling and setting: Take out the semi-finished product after pressing from the mold, put it on the cooling fixture for cooling and setting at room temperature, cooling and setting time: ...
Embodiment 2
[0034] Embodiment 2: a kind of production technology of automobile rear shelf, comprises the following steps:
[0035] Product specification: L1300×W650
[0036] (1) Spreading material: spread the glass fiber mat on the lower mold, and fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 320 g / m 2 ;
[0037] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1700g / ㎡;
[0038] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 63°C, the lower mold temperature is 63°C, the molding time is 460 seconds, and the heating water temperature is: 75°C;
[0039] (4) Cooling and setting: Take out the pressed semi-finished product from the mold, put it on the cooling fixture for cooling and setting at room temperature, cooling and se...
Embodiment 3
[0046] Embodiment 3: a kind of production technology of automobile rear shelf, comprises the following steps:
[0047] Product specification: L1300×W650
[0048] (1) Spreading material: spread the glass fiber mat on the lower mold, and fix the glass fiber mat and reinforcing ribs on the upper mold; the grammage of the glass fiber mat is: 310g / m 2 ;
[0049] (2) Polyurethane material spraying: Spray polyurethane material evenly on the glass fiber mat of the lower mold, and the spraying amount of polyurethane material is 1650g / ㎡;
[0050] (3) Compression molding: Press the glass fiber mat and reinforcing ribs into a semi-finished product in the mold. The upper mold temperature is 60°C, the lower mold temperature is 60°C, the molding time is 465 seconds, and the heating water temperature is: 65°C;
[0051] (4) Cooling and setting: Take out the semi-finished product after pressing and forming from the mold, put it on the cooling fixture for cooling and setting at room temperatu...
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