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PA

PA plastic (nylon, Polyamide), English name :Polyamide
There are many varieties of PA, including PA6, PA66, PAll, PAl2, PA46, PA610, PA612, PA1010, etc., as well as many new varieties of PA6T, PA6T and special nylon developed in recent years. PA plastic is a general engineering plastic with a long history and a wide range of USES. In 2000, the world engineering plastic market was allocated to pa35%, pc32%, pom11%, PBT1O %, ppo3%, pet2%, uhmwpe2%, and high-performance engineering plastics (PPS polyamide, LCP, PEEK, PEI, PESU, PVDF, other fluorinated plastics, etc.) 2%.

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Raw Material Description

Parameters

1. The crystalline material has a high melting point, a narrow melting temperature range, and poor thermal stability. The material temperature exceeds 300 degrees and the residence time exceeds 30 minutes to decompose. It is easy to absorb moisture and needs to be dried. The water content should not exceed 0.3%.

2. Good fluidity and easy to overflow. Self-locking nozzles should be used and should be heated.

3. The molding shrinkage range and shrinkage rate are large, the direction is obvious, and shrinkage and deformation are easy to occur.

4. The mold temperature is selected within the range of 20 to 90 degrees according to the wall thickness of the plastic part. The injection pressure is selected according to the type of injection machine, material temperature, shape and size of the plastic part, and the mold pouring system. When the viscosity of the resin is small, the injection and cooling time should be long and used together

White oil is used as release agent.

5. The form and size of the mold pouring system. Increasing the size of the runner and gate can reduce shrinkage. The disadvantages of polyamides are: insufficient dimensional accuracy due to thermal expansion and water absorption, poor acid resistance, and insufficient hardness and elastic modulus. After being improved,

It is one of the better engineering plastics.

Car manufacturing

Used to manufacture fuel filters, fuel filters, tanks, traps, oil storage tanks, engine cylinder head covers, radiator water cylinders, balanced rotating shaft gears. It can also be used in electrical accessories and terminals of automobiles. In addition, it can also be used as drive, control components, etc.

Electrical and electronic industry

It can be used to manufacture electric rice cookers, electric vacuum cleaners, high-frequency electronic food heaters, terminal posts, switches and resistors for electrical products.

Medical instruments

Used for medical blood transfusion, blood collection device, infusion set, etc. PA monofilament can be used for surgical sutures, wigs, etc. In addition, digital rotating disks, binding posts, transmission gears of electronic typewriters, belt filters for printing machines, etc.

Other aspects

Used for making disposable lighter body, alkaline dry battery liner, motorcycle driver's helmet, office machine shell, corner wheel, seat and backrest of office chair, skates, fishing line, etc. PA film has excellent gas barrier performance, and Oil resistance, low temperature impact resistance

It has good resistance and penetration resistance, and can be used for packaging frozen food such as meat and ham sausage. Polyamide can also be used as rods and plates, and also as gears or other transmission devices.

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CUSTOMIZATION PROCESS

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