Polyamide injection molding

PPSPMMApolypropylene

Welcome to wholesale the high quality nylon injection molding made in China from our factory. As one of the leading manufacturers and suppliers in China, we are equipped with advanced equipment and technology. Please be free to get the customized products from us. - Product Name: nylon injection molding - Material: PA66/PA6/PBT/PC/nylon injection molding/PP/PPS/POM with GF/FR/Toughening agent - Color: Customize - Certification: ISO9001, SGS, CTI, ROHS - Mould material: P20/718/738/NAK80/S136 - Mould base: LKM Mould Base PA—Polyamide, also known as nylon, is a general term for a large class of amide-type polymers. The most common are PA6, PA66, PA1010. Recently, with the development of the IT industry, the use of a new type of polyamide, PA46, has increased dramatically, and it has been used to replace LCP (liquid crystal polymer) production plug-ins on computers. Because nylon injection molding PA has good mechanical properties, good toughness, impact resistance, wear resistance, self-lubrication, flame retardant, insulation, etc., it is widely used in many fields such as automobile, machinery, electronics, instrumentation, chemical industry, such as gears and pulleys, bearings, impellers, bushings, containers, brushes, zippers, etc. Nylon injection molding PA6, PA66, and PA46 are all aliphatic polyamides. They are linear polymers with a very polar amide group in their molecular structure, so they have a high degree of crystallization. The properties of PA products depend on their crystalline morphology and crystallinity. The processing conditions have an effect on the crystal morphology and crystallinity, and the processing conditions are different. The crystal change of the nylon injection molding PA product can reach 40%, the product cools slowly, the crystallinity is high, and a large-sized crystal form is formed. Water absorption also has an effect on its crystallinity. In addition, nylon injection molding PA will have a certain degree of orientation during processing due to flow and shear, resulting in anisotropic properties of the product, and the strength in the orientation direction is better than the non-oriented direction. The orientation is also beneficial to the crystallization process. This factor should be considered when designing. - PA performance - Physical properties: No odor, odorless, mildew, translucent or transparent appearance, milky white or light yellow, density 1.04-1.36, giving a special protein flavor when burned, the flame is blue at the upper end. - Mechanical properties: Good toughness, resistance to repeated shock and vibration, temperature of – 40-100°C, friction resistance, wear resistance, self-lubrication, poor creep resistance, poor dimensional stability, can be enhanced by adding fiberglass or blend with other materials to overcome this disadvantage. - Chemical resistance and weather resistance: PA has few organic solvents and good chemical properties. The organic solvent of nylon injection molding PA is formic acid and phenolic compounds. Different concentrations of inorganic acids, bases, and salts can cause PA to swell, dissolve, or hydrolyze. Under the condition of being exposed to sunlight, its aging resistance is good, but it is aging under the action of heat, light and radiation, the product is discolored, and the performance is degraded. - Processability: It is hygroscopic and must be dried before molding. High melting point, narrow melting limit, melting point: nylon injection molding PA6: 215°C, PA66: 255°C, PA46: 290°C. PA melt viscosity has high temperature sensitivity and shear sensitivity, low melt viscosity and good fluidity. PA has a poor thermal stability in the molten state and is easily decomposed at high temperatures. The cooling rate of the melt has a significant effect on the structure and properties of the product. The molding process is accompanied by crystallization and a large shrinkage rate. - Technical Specifications / Features: - Product Name: nylon injection molding - Material: PA66/PA6/PBT/PC/nylon injection molding/PP/PPS/POM with GF/FR/Toughening agent - Color: Customize - Certification: ISO9001, SGS, CTI, ROHS - Mould material: P20/718/738/NAK80/S136 - Mould base: LKM Mould Base