PA612 is mainly used for bristles for toothbrushes and other advanced industries, can also be used for the production of precision machinery parts and electrical wire and cable coating coating, oil pipe, oil resistant conveyor belts, ropes, bearing, liner, the military can be used for gunstocks, helmet and military cables. Injection molding process Drying treatment: If the material is sealed before processing, it is not necessary to dry. However, if the storage container is opened, it is recommended to dry at 85 C hot air. If the humidity is greater than 0.2%, it is necessary to vacuum drying at 105 and 12 hours. Mold humidity: Recommendation 80. C mold temperature affects the crystallinity, and the crystallinity will affect the physical properties. For thin wall plastic parts, if you use less than 40 degrees, the mold temperature, plastic parts of the crystallinity changes with time, in order to maintain the geometric stability of plastic parts, the need for annealing. Injection pressure: It's usually in 750~1250bar, depending on the material and the design of the new product. PBT Because of its high melting point and crystallinity, the water absorption and thermal expansion coefficient are also very low, so it has excellent dimensional stability. In addition, it has excellent electrical insulation, the electrical property caused by the hygroscopic property changes very little, and the insulation voltage is very high. In the aggregation structure of PBT, there are crystalline and amorphous regions, so it can be easily modified by adding other substances and endow them with various functions. The existing flammable grade, high speed molding grade and high impact resistance grade endowed various kinds of grades. Connectors, small switches, capacitor housing and other electronic components, OA mechanical keyboard and VTR, telephone and other functional mechanical components, vehicle electronic components, car door handles and other automotive components. Also, medical machinery, building materials, precision machinery, etc. are widely used in many of our daily articles and utensils. The property is high crystalline plastic plastic, the melting point is 220~230 C, and the crystallization rate is faster than that of PET. Advantages of 1, mechanical properties, tensile strength and tensile modulus and nylon resemble 2. Small friction coefficient is self moistening PC/ABS In order to meet this demand, kumhosunny and Yanfeng Wei Shitong successfully developed a new generation of PC/ABS ultra low gloss materials HAC8250Z and HAC8260Z. The material not only satisfies the low gloss requirements of the parts below the inner waist line of the car, but also balances the fluidity and heat resistance. A new generation of ultra low gloss PC/ABS due to its low gloss outstanding has been successfully applied to the Shanghai Volkswagen Skoda crystal sharp steering wheel cover, the surface gloss of parts at 60 degrees under the test value is 4.2 (K31, 1.5 degrees of skin color, 9B9), to meet the automotive interior under the waist gloss requirements. At the same time, kumhosunny also together with customers to develop PC/ABS HAC8260Z dashboard matte material, the material not only to replace the original steel dashboard framework, and is directly exposed dashboard without nakedness materials currently used in paint, SAIC Iveco Hongyan models. We are convinced that the new generation of PC/ABS ultra low gloss materials will continue to be applied with the gradual implementation of the ELV regulations. Chemical resistant solvent PC/ABS PC/ABS has excellent comprehensive properties, but its chemical resistance is poor and is easily damaged by strong chemical solvent erosion, resulting in cracking and other defects. Especially when some body exterior paint spraying PC/ABS products, because of its strong corrosive solvent, easy to cause the product stress marks, cracks,?or?even cracking. Chang and Kumho in view of this situation, the development of a new generation of chemical solvent PC/ABSHAC8265P, this material after stress erosion simulation chemical solvent, the cracking time is 3 times higher than ordinary PC/ABS. The new generation of chemical resistant solvent PC/ABS has changed the traditional alloy material, often sacrificing in a performance sacrifice for another performance improvement mistake. It achieves excellent chemical resistance while maintaining the balance between impact strength and fluidity. At present, the material has been used in the rear plate of general motors, and the tail door of the Volkswagen automobile. PC/ABS, polycarbonate and acrylonitrile butadiene styrene copolymer and the mixture is made of polycarbonate (Polycarbonate) and polyacrylonitrile (ABS) alloy made of thermoplastic plastic, with excellent properties of two kinds of material, ABS material molding and PC mechanical properties, impact strength and temperature resistance, anti ultraviolet (UV) other properties, can be widely used in automobile interior parts, office machinery, communication equipment, household appliances and lighting equipment. Typical application range: 1.: car interior and exterior panels, pillars, bezel, grille, trim 2. business equipment casing and built-in parts: Laptop / desktop computer, copier, printer, plotter, display 3. telecommunications, mobile phone shell, accessories and smart card (SIM card): 4. electrical products, electronic products shell, electric meter the cover and the shell, the switch, plug and socket, cable pipe 5. household appliances, such as washing machine, dryer, microwave ovens and other internal and external components. PEEK 1, automobile and other transportation machinery fields The growth of PEEK resin in the European market, especially the growth of auto parts market, is the fastest. Especially for the parts around engine, transmission parts and steering parts, PEEK plastics are used instead of some traditional high priced metals as manufacturing materials. As the automotive industry adapts to miniaturization, lightweight, and cost reduction requirements, the demand for PEEK resins will continue to grow. A European model has 44 parts with PEEK plastics instead of traditional metal products. 2, IT manufacturing field Semiconductor manufacturing and electronic and electrical industries are expected to be another growth point for PEEK resin applications. In the semiconductor industry, in order to achieve high function and low cost requirements, the wafer size is larger, more advanced manufacturing technology, low dust, low gas release, low ionic dissolution, low water absorption is the special requirements of various equipment in semiconductor manufacturing process of material, it will be PEEK resin display skills to the full. 3. The field of mechanical parts for office use For the separation paws, special heat-resistant bearings, chains, gears and so on, the PEEK resin instead of metal as their material can make components lightweight and fatigue resistant and can be oil-free. 4, wire coating field PEEK coating has good flame retardancy, without any flame retardant, its flame retardant grade can reach UL94 V-0 grade. PEEK resin also has the advantages of resistance to peeling resistance, radiation resistance (109 Ladd) and so on. Therefore, it is used in special wires in the fields of military and nuclear energy. 5, plate, bar and other fields When PEEK is applied in some special fields, it will often encounter the phenomenon of less quantity and more variety. At that time, it will be very beneficial to make mechanical processing with bars and boards. 6, the field of fiber