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Geely CK (2008). Manual part - 96
381 2 Adopt sound insulating material to reduce the noise in the compartment. For the heat, vibration and sound insulation of the body, they are a systematic engineering. Besides you take measures on effectively improving the rigidity of the body and sealing technique, the following measures can be taken in the body design and manufacturing: a. Sound insulating material: paste a layer of asphalt board on the floor and FR/RR fenders. Add insulation pads on the cowl and the floor. b. Sound absorbing material: adopt formed carpet which is composed of front floor carpet and rear floor carpet. The FR/RR floor carpets are integrated with the floor and sound absorbing pad. It is required that the floor and the pad will not peeled when torn by outside force. 3. Sealing An elaborate concern is taken from design and manufacturing on the body sealing. Sealing is very important for the operation performance of dust prevention, water proofing, corrosion prevention, heat protection, heat preservation, noise reduction, etc. Especially, the floor and cowl are located in the harshest outside environment. The mud splashing from road, dust and sand, wheel noise, engine noise and hot air will get in the interior environment by every opening. After the body assemble welding completes, apply a line of sealant on all joints of the body to avoid water and vapor permeating into the metal joint and also to ensure the quality for the following painting.(Figure 5-25). Besides, a layer of stone-strike proofing paint is applied on the bottom of the body. The paint has good sealing effect. For the sealing of mounting parts on the body, traditional methods are generally adopted, such as rubber sealing ring, cover, rubber strip, special-shaped sealing strip, etc. But in order to make more minute and rigorous considerations in design and manufacturing of structural parts and the stability of the dimension relationship of contacting sealing. For windshield and rear back door glass, a natural-curing high-tensile sealant is adopted in sealing. It represents the advanced modern techniques in reliability and mounting technology. 5-25 1. 2. 3.
Figure 5-39 Area Where Chloride Ethylene Plastisol Is Applied 1. Front Mud Guard 2. Rear Side Wall 3. Rear Wheel House Front |