PA Injection Molded Parts

Among the mechanical properties of PA, the tensile and compressive strength varies with temperature and moisture absorption, so water is relatively a plasticizer of PA. After adding glass fiber, its tensile and compressive strength can be increased by about 2 times, and its temperature resistance is also Correspondingly, the wear resistance of PA itself is very high, so it can be operated without lubrication. If you want to get a special lubrication effect, you can add sulfide to PA.

The main products of Zhongwei Precision Machinery Co., Ltd. are nylon products, plastic products, ABS series, rubber products, etc. Types of injection molding materials that can be processed: polyethylene (PE), polypropylene (PP), nylon (PA, PA6, PA66), polyoxymethylene (POM), ABS, polyurethane (TPU), polyphenylene sulfide (PPS), polystyrene Carbonate (PC), Polyetheretherketone (PEEK), etc.

Product Description

1. Implementation standards: the company strictly implements ISO9001, ISO14001, IATF16949, VDA6.3 certification, and products have passed ROHS, FDA EU certification, etc.

2. Product material standards: ISO, GB, ASTM, SAE, EN, DIN, BS, AMS, JIS, ASME, DMS, TOCT, GB

3. Main processes: plastic injection molding, metal insert injection molding, investment casting, die-casting aluminum,

4. Available materials for injection molding:

Processable nylon products, plastic products, ABS series; injection molding material types: polyethylene (PE), polypropylene (PP), nylon (PA, PA6, PA66), polyoxymethylene (POM), ABS, polyurethane (TPU), poly Phenyl sulfide (PPS), polycarbonate (PC), polyether ether ketone (PEEK) and 3D printing can be customized according to customer requirements.

Product Material

Among the mechanical properties of PA, the tensile and compressive strength varies with temperature and moisture absorption, so water is relatively a plasticizer of PA. After adding glass fiber, its tensile and compressive strength can be increased by about 2 times, and its temperature resistance is also Correspondingly, the wear resistance of PA itself is very high, so it can be operated without lubrication. If you want to get a special lubrication effect, you can add sulfide to PA.

PA injection molded parts suitable plastic products: all kinds of gears, turbines, racks, cams, bearings, propellers, drive belts.

Others: Shrinkage 1-2%, please pay attention to the dimensional change of moisture absorption after molding.

Water absorption rate: 100%, it can absorb 8% when it is saturated with relative moisture.

Suitable wall thickness: 2-3.5mm

●PA66

High fatigue strength and rigidity, good heat resistance, low friction coefficient, good wear resistance, but high hygroscopicity and insufficient dimensional stability.

Application: medium load, wear-resistant force transmission parts that work under the conditions of no lubrication or less lubrication at a temperature of<100-120 degrees.

●PA6

Fatigue strength, rigidity, and heat resistance are lower than nylon 66, but have good elasticity, and have better vibration and noise reduction capabilities.

Application: Light load, medium temperature (80-100) non-lubricated or less lubricated, wear-resistant force transmission parts that work under the conditions of low noise.

●PA610

Strength. Rigidity and heat resistance are lower than nylon 66, but have low hygroscopicity and good abrasion resistance. Khaki

Application: Same as nylon 6, suitable for gears requiring more precision and parts with large changes in working conditions and humidity.

●PA1010

Strength, rigidity and heat resistance are lower than nylon 66, moisture absorption is lower than nylon 610, good molding process, good wear resistance.

Application: light load, low temperature, large change in humidity, parts that work with no or little lubrication under extreme conditions

MCPA

Strength, fatigue resistance, heat resistance, rigidity are better than PA6 and PA66, hygroscopicity is lower than PA6 and PA66, good wear resistance, can be directly polymerized in the model, suitable for casting large parts. Application: high load, high service temperature (below 120) with no or little lubrication. milky

●Cast nylon

Cast nylon (MC nylon), also known as monomer casting nylon, is made of caprolactam monomer under the action of strong alkali (such as NaOH) and some co-catalysts, and is directly polymerized with a mold to obtain a blank of the product. The forming process is combined, so the forming is convenient, the equipment investment is low, and it is easy to manufacture large machine parts. Its mechanical properties and physical properties are higher than nylon 6. It can manufacture dozens of kilograms of gears, turbines, bearings, etc.

●Nylon 1010

Nylon 1010 is an original engineering plastic in my country. It is made of castor oil as raw material, extracted from decanediamine and sebacic acid and then condensed. Low cost, good economic effect, excellent self-lubrication and wear resistance, good oil resistance, low brittle transition temperature (about -60 ℃), high mechanical strength, widely used in mechanical parts and chemical, electrical parts.

●Modified nylon

Modified nylon is a kind of engineering plastics. It is a granular product formed by changing the physical properties of nylon raw materials. The output of such products is modified according to the needs of some manufacturers.

Modified nylon generally includes: reinforced nylon, toughened nylon, wear-resistant nylon, halogen-free flame retardant nylon, conductive nylon, flame retardant nylon and so on.

1. Thermal properties: high glass transition temperature (Tg), melting point (Tm), heat distortion temperature (HDT); high long-term use temperature (UL-746B); large operating temperature range; small thermal expansion coefficient.

2. Mechanical properties: high strength, high mechanical modulus, low latent, strong wear resistance and fatigue resistance.

3. Others: good chemical resistance, electricity resistance, flame resistance, weather resistance, and dimensional stability.

Post Injection Molding Process

1. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

2. Surface treatment: For some products that require subsequent processing, we can provide surface treatment services to achieve the special purpose of customers. At present, we can provide degreasing, polishing, electroplating (gold, silver, nickel, tin, galvanized, etc.), anodizing, electrophoresis and other surface treatment services for precision parts.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: automated visual inspection equipment can carry out 100% inspection of products, spectrum analyzer, golden elephant analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine.

Application