Phenolic Resin Injection Parts

The most important feature of phenolic resins is their high temperature resistance, which maintains their structural integrity and dimensional stability even at very high temperatures. It is for this reason that Phenolic resin injection parts are used in some high temperature fields, such as refractory materials, friction materials, adhesives and foundry industries. 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.

Production Process

1 Process method

(1) Add the melted phenol into the reaction kettle and start stirring to open the cooling water so that the internal temperature is reduced to below 500°C.

(2) Add formaldehyde solution to keep the internal temperature at 40~500C, stir for 10~15min, and add ammonium hydroxide.

(3) Heat up to 650C in 20min, keep 20min and slowly heat up to 950C in 60min.

(4) keep the reflux reaction at 92~960C. The cloudy point is when milky turbidity occurs

(5) Sampling after 10min, cool to 25~300C to separate the upper layer of water, if the resin does not stick to the glass and the wire drawing is the end point of the reaction, immediately cool down.

(6) When the internal temperature drops below 750C, the vacuum degree of vacuum dehydration reaches more than 80kpa, and the internal temperature is controlled at 55~750C

(7) When the dehydration amount reaches the requirement and the resin in the kettle is transparent, start sampling to measure the degree of polymerization, and immediately add ethanol (vacuum feeding method) and other resins after the resin is completely dissolved when the index is reached. Cool to 400C.

2. Process performance

FB resin is block or powder at room temperature. Its dynamic melting endothermic peak is "0 ~ 165C, and the solidification exothermic peak is around 210 °C. It has been completely cured after repeated testing at 180'C for 1.5h ~ 3h.

Since FB resin is supplied to users in groups, transportation costs can be reduced. Increased safety during transportation and storage, and longer storage time. In the process of processing and molding, there is no toxic solvent, no ammonia escape, and no formaldehyde escape, which is beneficial to the health of workers and conforms to contemporary environmental protection requirements. The processing and molding process is similar to ordinary phenolic. Just raise the temperature appropriately. This Phenolic resin injection parts have excellent process performance.

3. Electrical properties of FB resin and its application

Sodium ions in phenolic resins affect electrical properties and increase hygroscopicity. The ammonia in the phenolic resin will corrode the metal inserts, especially under high temperature and high humidity conditions. in aerospace products. Due to its low ionization potential, alkali metal impurities can cause communication interruption and wake flow, which are easy to be found by the other party, and reduce the oxidation resistance. The FB resin has neither fluorine nor alkali metal impurities, which is very beneficial to electronic products and aerospace products.

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

1. Making adhesives, bakelite powder, electrical appliances, fishing rods, plywood, wood laminates, etc.

2. Phenolic resin injection parts are used as tackifying resin for neoprene adhesive and vulcanizing agent for butyl rubber. Store in a cool, ventilated warehouse, away from fire and heat sources.

3. It is used to make insulating structural parts for telecommunications, instruments and traffic electrical appliances with higher dielectric properties

4. It is used to manufacture bottle caps and buttons, insulating structural parts of daily low-voltage electrical appliances, insulating structural parts and instrument shells of low-voltage electrical appliances, low-voltage electrical appliances used in humid and hot areas, etc.

5. It has outstanding water resistance, stability and self-lubrication, and is used for self-lubricating bearings, gas meter components, and molded products of water pump housing impellers

6. It is used to make parts and low-voltage electrical parts for electromechanical, instrumentation, textile, chemical and other departments

7. Used to make insulating structural parts of low-voltage electrical appliances

8. Mainly used in daily products, mechanical parts, household electrical insulation parts, high and low voltage electrical parts, traffic electrical equipment and radio parts and TV parts, etc.

9. Used in paint industry

10. For wood bonding

11. Used to make general electrical structural parts

12. Used for making gas meter parts

13. Mainly used for making accessories and electrical accessories with metal inserts and high electrical insulation performance requirements for electromechanical, instrumentation, telecommunication industry, aviation and automobile industry

14. At room temperature, using p-toluenesulfonic acid as curing agent can be self-hardening, using urotropine as curing agent, and can also be used as hot box resin

15. For the manufacture of low-voltage electrical appliances, instruments and other insulating structural parts

16. It is used to manufacture heat-resistant, high-strength mechanical transmission parts, electrical structural parts, etc.

17. It is suitable for the manufacture of low-voltage electrical appliances, instrument insulation parts, etc.

18. Used to make insulating structural parts of electronic products

19. Used for making water wheel pump bearings

20. Used as raw materials for phenolic plastics, making adhesives, anti-corrosion coatings, etc.

21. Applied to cast iron, ductile iron, cast steel, and coated sand for shell cores of non-ferrous metal castings

22. Used for making electrical appliances, bakelite and other plastic products

23. Mainly used in the manufacture of quick-drying coatings, but also in the manufacture of coated sand, used for shell (core) casting of cast steel and cast iron

24. Used in paint, ink and other industries

25. It is used to make electrical insulation parts, instrument shells, air switches of different sizes, contact switches, etc.

26. Shells and handles for pressing or injecting electrical appliances, instruments, aluminum pots, etc.

27. Used for making electrical insulating paints, radio components, laminates, glass fiber reinforced plastics, paints, etc.

28. Mainly used for shell (core) casting of aluminum castings, with good collapsibility

29. Used to make solid core potentiometer base

30. It is used to make electrical parts for electromechanical, instrumentation, textile, chemical and other departments

31. Used to make low-voltage electromechanical and instrument parts

32. It is used as the raw material of electrical appliance shells and daily bakelite powder, and used for the bonding of grinding wheels, light bulbs, bamboo and wood utensils

33. For wood processing

34. Suitable for manufacturing daily necessities and insulating structural parts of low-voltage electrical appliances and instruments by molding method

35. Adhesives for making laminates and glass fiber reinforced plastics

36. Used as mud treatment agent in petroleum industry

37. Used in the manufacture of various high-strength, water-resistant plywood, wood laminate and fiberboard

38. Mainly used in the manufacture of refractory magnesia-carbon bricks, with the characteristics of high strength and good craftsmanship

39. For the production of high-strength materials, electrical components, etc.

40. Phenolic resin injection parts are used as raw materials for phenolic compression molding powder, anti-corrosion paint, adhesives, bakelite products, etc.

41. Used as a binder for friction materials, molds and molded plastics

42. Used to make low-voltage electrical appliances, instruments, and insulating structural parts in the textile industry

43. It is used for bonding of wood and bamboo products, light bulbs, grinding wheels, etc.

44. Used in the preparation of coatings, adhesives, acid-resistant mortar and phenolic plastics, etc.

45. Used to make phenolic glue, paint and electrical equipment

46. Used to make heat-resistant and low-voltage electrical insulation structural parts

47. For the manufacture of heat-resistant low-voltage electrical insulation structural parts

48. Bearings and sealing rings for manufacturing submersible pumps, etc.

49. Used in the foundry industry

50. Suitable for making bottle caps, buttons and other daily necessities

51. Used in the printing industry

52. For pressing various glass fiber reinforced plastic products

53. Used to make ink, paint, rubber, insulating materials, etc.

54. The main purpose is to manufacture water-resistant plywood, fiberboard, laminate, sewing machine board, furniture, etc. It can also be used for the bonding of porous materials such as glass fiber laminate and foam plastic, and the bonding of sand molds for casting, etc.