When we choose automotive plastic components, the first thing to consider is what kind of performance plastic products need, that is to say, the performance of plastic products is the primary consideration when we choose materials. The performance of plastic material we choose must meet the performance requirements of the product so that the product made of this material can achieve the design purpose of the product.
For a specific plastic product, many properties are often required. When selecting, first of all, many properties must be divided into main properties, related properties, and secondary properties. In this way, the primary and secondary can be distinguished, the main contradiction can be grasped, and the selection process can be simplified. The importance of the main performance, related performance, and secondary performance of plastic products are different, and the order is as follows: 1. Main performance: it is the key performance that determines the performance of the product, and it is the performance that the material must have; 2. Relevant performance: it is The auxiliary performance that serves the main performance of the product is the best performance of the material; 3. Secondary performance: it is a performance that has little to do with the performance of the product, and is a dispensable performance of the material.
At the same time, when automotive plastic components are used, there will be different conditions of use. The types of forces on the products are different, and the performance requirements of the products are also different. Correspondingly, the performance requirements of the selected materials are also different. The performance requirements of the material are as follows: tensile force: such as ropes, tie rods, and other products, the tensile strength of the material is required to be high; compression force: such as gaskets, sealing rings, and other products, the compressive strength of the material is required to be high; impact force: Such as car bumpers, plastic parts of car center console and other products, the impact strength of the material is required to be high;
Bending force: such as in single and parallel bars of sports equipment, the bending strength of the material is required to be high; twisting force: such as in the transmission shaft and other products, the twisting strength of the material is required to be high; shearing force: such as bolts and other products, the shearing force of the material is required. High shear strength; Friction: such as bearings, guide rails, pistons, and other products, the materials are required to have good wear resistance; pressure: such as water pipes, fuel pipes, etc., the materials are required to have high blast resistance.