Delrin 500P is an ACETAL RESIN product. It can be processed by extrusion, sheet extrusion, profile extrusion, injection molding or cast film and is available in North America, Africa and Middle East Latin America, Europe or Asia Pacific. Delrin 500P applications include sheet, wire and cable, film, hose and engineering/industrial fittings.
Characteristics include: high stiffness, high strength, homopolymer, creep resistance
POM American DuPont Delrin 500P performance characteristics
1. POM is a milky white opaque crystalline linear thermoplastic resin with good comprehensive performance and colorability, high elastic modulus, high rigidity and hardness, and its specific strength and specific rigidity are close to metal
2. Excellent tensile strength, curvature, creep resistance and fatigue resistance, repeated impact resistance, excellent load recovery;
3. Small friction coefficient, wear resistance, good temporal stability, good surface gloss, high viscoelasticity, excellent electrical insulation, which is affected by temperature; good insulation resistance, which is affected by humidity;
4. Excellent chemical resistance: In addition to strong acids, phenols and organic halides, it is stable to other chemicals and resistant to oil; the mechanical properties are less affected by temperature, and it has a high heat distortion temperature.
5. The disadvantage is that the flame retardancy is poor, it burns slowly in case of fire, and the oxygen index is small. Even if a flame retardant is added, it cannot meet the satisfactory requirements. In addition, the weather resistance is not ideal, and a stabilizer should be added outdoors.
6. Homopolyoxymethylene has high crystallinity, better mechanical strength, rigidity, heat distortion temperature, etc. than copolymerized polyoxymethylene, low melting point of sudden formaldehyde, thermal stability, chemical corrosion resistance, flow characteristics, and processability are better than homopolyoxymethylene Formaldehyde, a newly developed product for ultra-high flow (rapid prototyping), impact resistance and reduced mold deposition grades, also inorganically filled, reinforced grades.
7. The water absorption rate of POM raw materials is greater than 0.2%, and it should be pre-dried before molding. The melting temperature of POM is similar to the decomposition temperature, and the formability is poor. It can be used for injection molding, extrusion, blow molding, rotational molding, welding, bonding, Coating, printing, electroplating, machining, and injection molding are the most important processing methods. The molding shrinkage rate is large, and the mold temperature should be higher, or annealing treatment, or adding reinforcing materials (such as alkali-free glass fiber).
Application of POM DuPont Delrin 500P
POM is a raw material with high strength and light weight. It is often used to replace non-ferrous metals such as copper, zinc, tin, and lead.
POM raw materials are widely used in the manufacture of various sliding and rotating mechanical parts, as well as various gears, levers and pulleys. Sprocket, especially suitable for bearings, hot water valves, precision metering valves, chain rings and roller flowmeters of conveyors, car window rotating machinery such as internal and external handle cranks of automobiles, oil pumpsBearing seat and impeller gas switch valve, smooth switch parts, solid body, terminal post mirror mask, sulfone fan parts heating plate, instrument button; audio and video tape bearings; various pipelines and agricultural sprinkler irrigation systems and valves, sprinklers, faucets, bath tub parts ; open keyboard buttons, audio and video tape reels; temperature control timer; dynamic items, garden finishing tool parts; externally can be used as surfboards, sailboats and various sled parts, watch micro gears, frame accessories for sports equipment and Including all kinds of buckles, fasteners, lighters, zippers, buckles; cardiac pacemakers in medical devices; artificial heart valves, apical vertebrae, artificial limbs, etc.
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