Production method of automobile skylight sun-shield
A production method and technology of automotive sunroofs, which are applied in the field of automotive interior parts, can solve the problems of sound absorption indicators not meeting the requirements, unfavorable vehicle lightweight, and heavy product weight, so as to improve operating efficiency, reduce weight, and have high rigidity Effect
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Embodiment 1
[0019] Produce Guangzhou Webasto R54 sunroof sunshade, its specification is: L769×W535mm.
[0020] The production process steps of the skylight sunshade are as follows:
[0021] The base material is made of low-density PU foam molding material.
[0022] (1) Pretreatment of PU material for sunroof sun visor substrate:
[0023] (a) Rolling glue: The glue rolling machine rolls glue on the front and back of the base PU foam molding material. The glue rolling machine has the function of gluing on both sides. The heating temperature is controlled at 40°C, and the amount of glue applied can be precisely controlled. The frequency of the motor is controlled at 20Hz, the distance between the upper and lower rollers of the rubber rolling machine is controlled at 7.0mm; the amount of glue on each side is controlled at 90g / m 2 ;
[0024] (b) Spray demineralized water: Spray demineralized water on the PU foam molding material with glue rolled above, and use special demineralized water sp...
Embodiment 2
[0032] Produce Changchun Webasto J61 sunroof sunshade, its specification is: L774×W471mm.
[0033] The production process steps of the skylight sunshade are as follows:
[0034] The base material is made of low-density PU foam molding material.
[0035] (1) Pretreatment of the PU material of the sunroof sunshade substrate:
[0036] (a) Rolling glue: The glue rolling machine rolls glue on the front and back sides of the base PU foam molding material. The glue rolling machine has the function of gluing on both sides. The heating temperature is controlled at 45°C, and the amount of glue applied can be precisely controlled. The frequency of the motor is controlled at 30Hz, the distance between the upper and lower rollers of the rubber rolling machine is controlled at 7.0mm; the amount of glue on each side is controlled at 100g / m 2 ;
[0037] (b) Spray demineralized water: Spray demineralized water on the PU foam molding material with glue rolled above, and use special demineral...
Embodiment 3
[0045] Produce Shanghai Webasto 308 sunroof sunshade, its specification is: L756×W512mm.
[0046] The production process steps of the skylight sunshade are as follows:
[0047] The base material is made of low-density PU foam molding material.
[0048] (1) Pretreatment of the PU material of the sunroof sunshade substrate:
[0049] (a) Rolling glue: The glue rolling machine rolls glue on the front and back of the base PU foam molding material. The glue rolling machine has the function of gluing on both sides. The heating temperature is controlled at 50°C, and the amount of glue applied can be precisely controlled. The frequency of the motor is controlled at 40Hz, the distance between the upper and lower rollers of the rubber rolling machine is controlled at 7.5mm; the amount of glue on each side is controlled at 110g / m 2 ;
[0050](b) Spray demineralized water: Spray demineralized water on the PU foam molding material with glue rolled above, and use special demineralized wat...
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