The car door panel is an important part of the automotive interior. It is located on the inside of the door and has four points: front, back, left and right. There are usually two or four doors depending on the car system. These parts are collectively referred to as the door panel series.
The car door mold I mentioned is the mold for the left and right door parts of the car. The material is PP+EPDM. The shrinkage is generally 1.011. EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a type of propylene rubber composed of chemically stable saturated hydrocarbons with only unsaturated double bonds in the side chain. Therefore, it has excellent ozone resistance, heat resistance and weather resistance, and can improve the elasticity of the door panel.
The door panel is an appearance piece, and the outer dimensions are: 880*670.4*105.6mm. Its structural characteristics are as follows:
1. The outer surface is required to be high, no spots or gate marks are allowed, and defects such as shrinkage holes, weld marks, and burrs are not allowed.
2, the door panel is a leather piece, the appearance of the demoulding slope is at least 5 °.
3. The surface of the door panel has high surface finish, complex shape structure, complicated parting line and more inverted buckles. There are 11 inverted buckles on the inner and outer sides of the plastic parts, which makes it difficult to demould.
Tips:
The door mold adopts the demoulding system introduced by “push rod + oblique push block + push block + nitrogen gas spring” and the “straight tube + inclined tube + water well” temperature control system.
Temperature control systems play an important role in the design of automotive parts molds, which have an important impact on the molding cycle and molding quality of plastic parts. Reasonable temperature control has a profound impact on the quality of the plastic parts and shortening the molding cycle. The design of the cooling system for large automotive mold manufacturing should pay attention to the following two points:
1, 3 meters principle. The total length of the cooling waterway should not exceed 3 meters. More than 3M cooling effect is poor. The case where the cooling water is not running after the mold opening should be avoided. In addition, the length of a single cooling passage must take into account the length of the drill bit, the hole is too deep, and the length of the drill bit is not sufficient, otherwise drilling cannot be completed. Straight-through cooling tubes for large automotive parts molds are typically 15 mm in diameter. The design of the fixed mode cooling water passage of the door injection mold should be designed at the same time as the shape of the plastic part, and drilled at both ends.
2, the effect of the palm. Large-scale automotive plastic mold waterway design, and arrange one-way flow of water. The spacing is arranged like a palm, and the distance between the waterways is controlled between 50-60mm.
The car door panel is one important part for cars. There are usually two or four doors depending on the car system.
The car door mold we mentioned is the mold for the left and right door parts of the car. The material is PP+EPDM. The shrinkage is generally 1.011. EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a type of propylene rubber composed of chemically stable saturated hydrocarbons with only unsaturated double bonds in the side chain. Therefore, it has excellent ozone resistance, heat resistance and weather resistance, and can improve the elasticity of the door panel.
Our design team design automotive parts based on clients’ specifications and requirements. Upon completion, we evaluate and test every product design proposal. The analysis process is carried out by design and engineering experts in consultation with the client, which ensures that we deliver precise and high-performing parts. we can share some experience we design plastic injection mold for Car Door Panel Audio Horn Cover if you are interested in it. please leave message here
Actually the Car Door Panel mold design is not difficult when you make the key points clear. we can discuss the door panel mold design with you if you are interested in, and provide some ideas how to design this type of mold.
In consideration of processing problems, the interior water duct of the Car Door Panel Mold maintains a distance of at least 8 mm from pusher holes such as push rods and push blocks.
The length of the cooling water channel is approximately equal, ensuring that the temperature difference between the cooling water inlet and outlet is approximately equal, thus ensuring that the mold temperature is roughly equal.
According to the shape of the plastic part, the Door Panel Mold uses a large-angle oblique hole. Although the drill bit has a side slip phenomenon and is extremely easy to drill, the problem can be solved by milling a platform perpendicular to the inclined hole before drilling.
The door panel is an appearance piece, and the outer dimensions are: 880*670.4*105.6mm. Its structural characteristics are as follows:
1. The outer surface is required to be high, no spots or gate marks are allowed, and defects such as shrinkage holes, weld marks, and burrs are not allowed.
2. The door panel is a leather piece, the appearance of the demoulding slope is at least 5 °.
3. The surface of the door panel has high surface finish, complex shape structure, complicated parting line and more inverted buckles.