PEEK High Temperature Injection Molding Parts

Polyetheretherketone, polyetheretherketone (PEEK for short), is a linear aromatic polymer compound containing chain segments in the main chain of the molecule. Its structural unit is oxygen-p-phenylene-oxy-carbonyl-p-phenylene, which is semi-crystalline and thermoplastic.

Polyetheretherketone (PEEK) resin is a kind of special engineering plastic with excellent performance. Compared with other special engineering plastics, PEEK high temperature injection molding parts has more significant advantages. Good, chemical corrosion resistance, flame retardant, peel resistance, abrasion resistance, not resistant to strong nitric acid, concentrated sulfuric acid, radiation resistance, super mechanical properties can be used in high-end machinery, nuclear engineering and aviation and other technologies.

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 Performance

1、PEEK

Polyetheretherketone refers to a linear polymer whose macromolecular main chain is composed of aryl groups, ketone bonds and ether bonds. It is the only polyaryletherketone variety that can be mass-produced at present. The English name is polyetherether ketone, or PEEK for short. The molecular formula is

Polyetheretherketone has the heat resistance and chemical stability of thermosetting plastics and the molding processability of thermoplastics. Polyetheretherketone also has excellent heat resistance. The heat distortion temperature is 160℃. When reinforced with 20%~30% glass fiber, the heat distortion temperature can be increased to 280~300℃. The thermal stability of polyether ether ketone is good, 420 ℃ in air. The weight loss is only 2% at 2h, 2.5% at 500°C, and significant thermal weight loss occurs only at 500°C. The long-term use temperature of polyetheretherketone is about 200 °C, at this temperature, it can still maintain high tensile strength and flexural modulus, it is also a very strong material, with excellent long-term creep resistance and Fatigue resistance.

The electrical insulating properties of polyetheretherketone are very good, and the volume resistivity is about 10~10Ω·cm. It still has a small dielectric constant and dielectric loss in the high frequency range. For example, at 10 Hz, its dielectric constant in the chamber is only 3.2, and the dielectric loss is only 0.02.

The chemical stability of polyetheretherketone is also very good. Except for concentrated sulfuric acid, it is very stable to almost any chemical reagent, and it can still maintain good chemical stability even at higher temperatures. In addition, it has excellent hot water and steam resistance. It can be used for a long time in the steam of 200~250 ℃.

Polyetheretherketone has good flame retardancy, and it is difficult to burn in ordinary environments. Even if it is burned, the amount of smoke and harmful gas released is very low, even lower than that of polytetrafluoroethylene. amount of polymer. In addition. It also has excellent radiation resistance. Its resistance to alpha rays, beta rays and gamma rays is currently the best among polymer materials. The wire products covered with it can withstand 1.1×10Gy gamma rays.

Polyetheretherketone has good melt fluidity and thermal stability above the melting point. Therefore, it has the typical molding and processing properties of thermoplastics, so it can be used for molding methods such as injection molding, extrusion, blow molding, lamination, etc., as well as spinning and film making. Although the melt processing temperature range of polyether ether ketone is 360~400 °C, it still has a wide processing temperature range because its thermal decomposition temperature is above 520 °C.

Although the development history of polyether ether ketone is only a short two decades, due to its outstanding heat resistance, chemical resistance, radiation resistance, high strength and easy processing, it has been widely used in nuclear It has been widely used in industry, chemical industry, electronic appliances, mechanical instruments, automobile industry and aerospace. Especially as a thermoplastic resin with excellent heat resistance, it can be used as a matrix material for high-performance composite materials.

2. Modification

The performance of PEEK pure material is difficult to meet the different needs of different industries. Therefore, PEEK needs to be modified in special working environments. The main methods include blending modification, copolymerization modification, composite enhancement modification, filling modification, nanometer Modification and surface modification techniques. Modification can increase some properties of PEEK, such as wear resistance, impact strength, etc., thereby expanding the application range of PEEK, reducing the cost of materials, and improving the processing performance of PEEK.

3. Commonly used modification of PEEK

Glass fiber modification: 10% glass fiber modification, 20% glass fiber modification, 30% glass fiber modification

Carbon fiber modification: 10% carbon fiber modification, 20% carbon fiber modification, 30% carbon fiber modification.

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

PEEK high temperature injection molding parts are widely used in aerospace, automobile manufacturing, electrical and electronic, medical and food processing fields.