Nylon (Nylon), Chinese name polyamide, the English name Polyamide (abbreviated PA), is a general term for a thermoplastic resin containing repeating molecular backbone amide group-NHCO-in. Name of a synthetic monomer and specific number of carbon atoms given. Is the largest U.S. chemical industry companies ─ ─ DuPont famous chemist and product descriptions Carothers Size his team invention: nylon sheet :0.3-1 .2 mm, width of 500mm, 720mm roll of nylon plate: 0.8- 180mm, 620 * 1200mm, 1000 * 2000mm, 500 * 1000mm nylon rod: diameter 3-740mm * 1000mm, 2000mm, 3000mm Nylon Series is the most important engineering plastics. The product is widely used, covering almost every area, is the most widely used engineering plastics in five varieties. Characteristics [4] as a large amount of nylon engineering plastics are widely used in machinery, automobiles, electrical appliances, textile equipment, chemical equipment, aviation, metallurgy and other fields. Become the industry indispensable structural materials, its main features are as follows: 1. Excellent mechanical properties. Nylon high mechanical strength and good toughness. 2. Self-lubrication, abrasion resistance. Nylon has a good discretionary self-lubrication, friction coefficient, thus, as part of its long transmission life. 3 is excellent in heat resistance. Such as high heat distortion temperature of nylon 46 and nylon high crystallinity, can be used in the long term 150 ℃ ... After the glass fiber reinforced PA66 after its heat distortion temperature reaches 250 ℃ or more. 4 excellent electrical insulation properties. Nylon high volume resistance, resistance to high breakdown voltage, are excellent electrical, electrical insulating materials 5. Excellent weather resistance. 6 absorbency. Nylon absorbent big, saturated water can reach more than 3%. In certain parts of the dimensional stability of the impact nylon plate production process according to the classification nylon plate divided into two kinds of extrusion and casting. Extruded nylon plate 1: Nylon 6 (White): This material has a superior combination of properties, including mechanical strength, stiffness, toughness, mechanical damping properties and wear resistance. These features, coupled with good electrical insulation and chemical resistance, making nylon 6 become a "universal class" materials for mechanical parts and maintenance of manufactured parts. 2: Nylon 66 (cream): comparison with nylon 6, and its mechanical strength, stiffness, heat and wear resistance, creep resistance and better, but the impact strength and mechanical damping performance, ideally suited for automatic lathes machining. 3: Nylon 4.6 (reddish brown): Compared with ordinary nylon, nylon 4.6 is characterized by a rigid and strong to save, good creep resistance in a wide temperature range, heat aging, and therefore, for nylon 4.6 nylon 6, nylon 66, POM and PET in stiffness, creep resistance, heat aging resistance, fatigue strength and wear resistance, mainly the "higher temperature area" (80 -150 ℃) 4: Nylon 66 + GF30 (black): Compared with pure nylon 66, this nylon filled with 30% glass fiber reinforced, heat resistance, strength and stiffness. Performance creep resistance and dimensional stability, wear, etc. are improved, its maximum allowable temperature is higher. 5: Nylon 66 + MOS2 (gray and black): This nylon fill molybdenum disulfide, compared with nylon 66, its rigidity, hardness and dimensional stability has increased, but the impact strength decreased, molybdenum disulfide the effect of improved grain form crystalline structure of the material load and wear resistance were improved. Cast nylon plate, also known as MC Nylon: English name Monomer casting nylon, Chinese, said monomer cast nylon. "Plastic steel, high performance," extremely versatile. It is light weight, high strength, a variety of unique properties of lubrication, wear, corrosion, insulation and other self. Is widely used plastic, almost all industrial fields. Currently on the market commonly cast nylon moderators have the following: 1: MC Nylon (Ivory): unmodified cast nylon 6 and nylon 66 is extremely close to its good overall performance, high strength, stiffness and hardness, creep, wear, heat aging resistance, good machining properties. 2: MC901 (blue): This modification has striking blue nylon 6, nylon higher than normal cast toughness, flexibility and good resistance to fatigue, proved to be an ideal material for gears, rack and transmission gears. 3: PA6 + oil (green): This cast nylon 6 is a veritable self-lubricating nylon, is designed for the manufacture can not be lubricated, high-load and low speed parts developed greatly broadens the scope of application of nylon, it than nylon low friction coefficient (which can be reduced by 50%) and improved wear resistance (can be increased 10-fold). 4: PA6 + molybdenum disulfide (gray and black): powder containing molybdenum disulfide, can not affect the unmodified cast nylon for high impact and fatigue resistance at the same time, increase its carrying capacity and wear resistance, it is very widely used to make gears, bearings, star wheel and sets. 5: PA6 + solid lubricants (gray): the use of proprietary cast nylon 6 formulation containing solid lubricant, the material self-lubricity, excellent abrasion resistance, outstanding abrasion resistance and pressure-velocity capabilities ( higher than normal cast nylon 5 times). Especially suitable for high-speed operation, not lubricate moving parts, oil nylon is the perfect complement. The main characteristics of mechanical strength, high stiffness, hardness, toughness, good aging resistance, good mechanical damping ability, good sliding properties, excellent wear resistance, good machining performance, precise and effective when used to control, creep phenomenon, good wear resistance, good dimensional stability. Applications are widely used for making gears and parts bad materials chemical machinery, anti-corrosion equipment. Wear parts, transmission structure, appliance parts, automotive parts, screw to prevent mechanical parts, chemical machinery parts, chemical equipment. Use of this product widely, based on good material plastic and steel, iron, copper and other metals, is an important engineering plastics; cast nylon extensive mechanical equipment to replace wear parts, wear-resistant parts instead of copper and alloys for equipment . For the production of wear parts, transmission structure, appliance parts, automotive parts, screw to prevent mechanical parts, chemical machinery parts, chemical equipment. Such as turbines, gears, bearings, impeller, crank, dashboard, drive shafts, valves, vane, screw, high pressure washers, screws, nuts, seals, shuttle, simple sets, sleeve connectors. Nylon, its molecular Central Asia and the number of methyl groups of the amide number is relatively high, so the relative density of 1.03-1.05, water absorption, low melting point, wide processing temperature, dimensional stability, stable and reliable electrical performance; excellent low temperature performance To -40 - maintaining good flexibility +120 ℃; abrasion resistance and oil resistance, alkali, alcohol, ketone, aromatic hydrocarbons, oil, gasoline, diesel fuel, detergents and other fine; durable dilute inorganic chlorinated hydrocarbons, acids and moderate performance; resistant to concentrated mineral acid; 50% hydrochloric acid and it has a great corrosion, it also has a greater corrosion phenol; weatherability medium, adding an ultraviolet absorber, can greatly improve the weather resistance. Nylon 11 key performance indicators: Item Index Item Index Density / g.cm3 1.03-1.05 Tensile strength / MPa 55 Heat Deflection Temperature / ℃ dielectric loss tangent (20 ℃, 1KHz) 0.05 1.86MPa 55 Dielectric strength / Kv.mm-1 16.7 0.46MPa 155 Volume resistivity / Ω.cm 6 × 10 1 3 linear expansion coefficient / k-1 15 × 10 -5 Taber abrasion volume / mg.10-3 5 Specific heat capacity / kJ. (kg. k) -1 2.42 Self-extinguishing flammability melting heat / kJ.kg-1 83.7 Water absorption /% Elongation /% 300 23 ℃, water, 24h 0.3 Tensile modulus of elasticity / MPa 1300 20 ℃, 65% RH 1.05 balance flexural strength (dry) / MPa 69 Melting point (Tm) / ℃ 186 bending modulus / MPa 1400 glass transition temperature (Tg) / ℃ 42 Molding shrinkage rate /% 1.2 instantaneous temperature / ℃ 100-130 Impact strength 20 ℃ (gap) / Jm-1 43 maximum continuous use temperature of 60 -40 ℃ (gap) / Jm-1 37 Martin Heat / ℃ 50-55 Rockwell hardness R 108 Vicat heat ℃ 160-165 relative dielectric constant (1KHz) 3.2-3.7 Advantages: Strong technology advanced equipment and good service quality goods sufficient lead