Automobile exterior parts design Daquan.

Basic requirements for car exterior

1. Due to the special functions of the vehicle, the design of exterior trim parts must adhere to the structural design of standardization, generalization and generalization;

2. At the same time, it meets the "six properties" requirements of rationality, innovation, maintenance convenience, stability, economy and manufacturing technology.

3. According to the different countries and regions where the model is promoted, the design process must fully implement local laws and regulations. The key includes the specification of the spacing between the installation holes of the front and rear bumper license plates, whether it is necessary to reserve fog lamp installation holes, lighting installation, external protrusion requirements and opening specifications and other related requirements.

4. In addition, whether the windward area of the radiator mask meets the refrigeration requirements of the engine and air conditioner shall be approved by the relevant departments.

Automotive exterior parts manufacturing production process

The key to the surface treatment of automobile exterior products is the following categories:

1. Injection molding: The molten plastic is injected into the plastic product mold by pressure, and the desired plastic parts are obtained by refrigeration molding. For example: front and rear bumpers, wheel eyebrows, Geshan and radiator decorative covers, etc.;

2. Blister: After the flat plastic hard sheet is heated and softened, it is vacuum adsorbed on the surface of the mold, and formed after cooling. For example, splash-proof pads, forming cargo boxes, etc.;

3. Injection molding: The tubular plastic parison obtained by extrusion or injection molding of the thermoplastic is placed in the opposite mold while it is hot (or heated to a soft state), and compressed air is fed into the parison immediately after the mold is closed. The plastic parison is inflated and attached to the inner wall of the mold, and after being cooled out of the mold, various hollow products are obtained. For example: tail.

The key to the surface treatment of automobile exterior products is the following categories:

1. The surface of the product is painted;

2. Product surface texture;

3. Product electroplating;

Injection molding precautions:

1. The direction of mold output and parting line: directly affect the mold output and appearance of the product;

2. The slope of the mold: it affects whether the product can be successfully molded;

3. Thin thickness of the product and reinforcing ribs: affect the strength of the product;

4. Arc shape: affects the appearance effect and product shape;

5. Holes (buried holes, buried holes, threaded holes, etc.): related to product installation and positioning;

6. Inserts: In order to improve the strength, strength and installation characteristics of the product, etc