The automotive interior plastic parts roof has transitioned from a soft top to a hard top. Now the automotive instrumentation structural parts roof has become a trend from a hard top. The automotive interior plastic parts hard top is composed of three layers of veneer, foam layer, and substrate. Using large-scale complete sets of production equipment, they are pressed into a whole by the hot pressing method, and the car roof becomes an interior part with a certain rigidity and three-dimensional shape. Car hard tops are generally made of high-pressure polyethylene foam materials. High-pressure polyethylene foam material has the characteristics of non-toxicity, lightweight, impact resistance, good mechanical properties, and good flexibility, but its molding performance is poor. As a result, today's automotive hardtops are mostly made of multi-layer composite materials.
There are two installation methods for the ceiling of automotive interior plastic parts, one is adhesive installation and the other is inlaid installation.
Adhesive installation means that the construction personnel holds the spray gun on-site, directly spray the adhesive glue evenly on the adhesive area on the back of the hard top, hangs the hard top for some time according to the requirements, and paste it directly on the hard top when the time is up. on the metal roof of the car. This allows the hardtop to be mounted on the top cover.
Inlaid installation means that the ceiling is divided into four parts: front, middle, rear, and periphery. The front installation points are installed by the left and right sun visors and the map (driver) light fixture, and the middle part is installed by the left and right occupant handles and occupant lights. The installation point is realized, and the rear part is fixed to the rear beam of the top cover with plastic clips. This allows the hard top to be mounted on the metal top cover.
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