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CBS
Fibre felt: Fibre drawn yarns are melt-spun into base material at high temperatures. The material is layered by cross-laying and stacking to achieve the desired thickness. This layered material is then needle-punched with top and bottom hooked needles to create a porous felt.
PP honeycomb board 1
The expansion block is a pre-formed, thermoplastic rubber-based product, which is assembled into the structure when the car body is welded, and is heated to foam and expand during electrophoretic baking in the painting workshop. It can block the transmission path of noise and vibration, and owns certain sound absorption performance due to the porous structure of the material; Therefore, it is indispensable in the automotive acoustic solution, which can effectively improve the comfort of the car.
Drawn yarn
The carbon fiber composite material structure part has the advantages of good physical properties, high strength, good durability, strong corrosion resistance, strong flexibility and the like; It is a strategic new material with excellent performance, and its density is less than 1/4 of steel, strength 5-7 times that of steel. Compared with aluminum alloy structural parts, the weight reduction effect of carbon fiber composite materials can reach 20%-40%. Compared with steel metal parts, the weight reduction effect of carbon fiber composite materials can reach 60%-80%. Our company's carbon fiber composite molding process mainly includes autoclave molding process, molding process and vacuum diversion process, including the most mainstream molding process in the domestic market; Autoclave molding Autoclave molding process is mainly used in the field of aerospace and automobile, which is mainly used to heat and pressurize the composite blank to complete the curing process by the pressure generated by the high temperature compressed gas in the autoclave. The porosity of the component manufactured by the product is low, with uniform resin content, and compared with other molding processes, the mechanical property of the molded component is stable and reliable; Compression molding A certain amount of molding material (powder, granular, flaky or filamentous molding material) is placed in the metal mold, and solidified into a special-shaped product at a certain temperature and pressure; For short fiber molding, prepreg molding has high production efficiency, accurate product size and good repeatability of appearance size. Products can be molded once without secondary processing, and mechanization and automation are easy to realize in some cases; Vacuum infusion process In the vacuum state, the gas in the fiber reinforcement is exhausted by vacuumizing, and the impregnation of the fiber and its fabric is realized by the flow and penetration of the resin, and the curing is carried out under a certain temperature condition. It is a molding technology for manufacturing large-scale composite parts with low cost.
PP honeycomb board
Product: Through the modification of the skin and core layer to increase the water resistance and flame retardant properties, the fibre felt is formed into a porous fibre felt. The fibre felt is heated by a 630T press and steam (1.8Mpa) is introduced to heat the skin (low melting PET) to make the skin melt quickly and form the product. Advantages of exhibits: It is a new material, which is modified by adding modified accessories, high temperature and vibration to the inherent PET plastic bottle chips/particles. The final product has the following advantages over traditional PP materials: High strength, no need for glass fiber reinforcement. Better anti-aging properties compared to PP, and there is no problem of old brittleness. Long fiber makes the product tough and strong to resist stone attack. Water resistance and flame retardancy ensure the performance of each fiber. The porous structure of PET fiber ensures better sound absorption. PET raw material food grade, the material can be 100% unlimited recycling, The manufacturing process does not cause harm and there is zero emission.
Product
PP honeycomb board is composed of two layers of PP skin and middle PP honeycomb core. When PP is not cured, the fabric and the back non-woven fabric are covered on the PP board. Therefore, the material does not carry glue. The odor and VOC are reduced.
Carbon fiber composite material structure part
Drawn yarn: customized spinning components are used to create a skin-core structured fiber from a mixture of PET fibers, with the skin layer made of low-melting (approximately 200°C melting point) PET and the core layer made of regular PET. The primary yarn is cooled after it comes out of the spinneret, and then it is drawn into fibre drawn yarn with a diameter of about 15.0um by high-speed air flow (8000m/s).
Expansion block
The PP honeycomb board is composed of two layers of PP glass fiber skin and the middle PP honeycomb core. The two layers increase the glass fiber to increase the strength of the product. The fabric is compounded by a surface adhesive film mode so that the product does not contain glue. The odor and VOC are reduced.
Fibre felt
CBS is a structure-increasing adhesive that hardens the product after foaming, thereby improving the strength of the automobile sheet metal. It can improve the overall strength, local strength, and increase fatigue durability as well as bending and torsion force.