Injection Molding

Precionn provides you with fast, free injection mold evaluation and quotation. We can not only provide injection mold design and manufacturing, but also provide injection molding services. We have a sophisticated mold manufacturing factory and injection molding workshop, which can provide you with injection molding services for more than 100+ plastic materials.

What Is Injection Molding?

At a certain temperature, a completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and cooled and solidified to obtain a molded product. This method is suitable for mass production of components with complex shapes and is one of the important processing methods.

Material Selection of Injection Molding

ABS

ABS resin is currently the largest production, the most widely used polymer, the appearance of opaque ivory grain, and has a high gloss. Easy processing, smooth surface, thermal stability, geometric stability, good impact resistance, good insulation, acid and alkali resistance, low creep, high hardness, good rigidity, low price, poor weather resistance, thermal performance is not good enough, general fluidity, small shrinkage,

The largest application areas of ABS resin are automobiles, electronic appliances and building materials. The use of the automotive field includes the instrument panel, the exterior panel of the body, the interior decoration board, the steering wheel, the sound insulation board, the door lock, the bumper, the ventilation pipe and many other components. In electrical appliances are widely used in refrigerators, TV sets, washing machines, air conditioners, computers, copiers and other electronic appliances. In terms of building materials, ABS pipes, ABS sanitary ware and ABS decorative plates are widely used in building materials industry. In addition, ABS is also widely used in packaging, furniture, sports and entertainment supplies, machinery and instrumentation industries.

PE

Polyethylene (PE) is the largest variety of general synthetic resins, mainly including low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE) and some products with special properties. Good acid, alkali and chemical solvent resistance, good fluidity, good insulation, easy to vacuum the surface, low embrittlement temperature (-75 C°), white translucent, easy to environmental stress cracking, good flexibility.

It is widely used in the manufacture of films, packaging materials, containers, pipes, monofilament, wire and cable, daily necessities, etc.

PMMA

High light transmittance, good impact resistance, not easy to break, aging resistance, good weather resistance, low hardness, poor wear resistance, brittle. PMMA products have a very low birefringence, especially suitable for the production of video discs.

PMMA has the advantages of light weight, low price and easy molding. Its forming methods include casting, injection molding, mechanical processing, thermoforming and so on. Especially injection molding, can be mass production, simple process, low cost. Therefore, its application is becoming more and more extensive, at present, it is widely used in instrument parts, automotive lights acrylic rods, optical lenses, transparent pipes and so on.

PP

Rigid, bending resistance, good toughness, fatigue resistance, light weight, still has good mechanical properties at high temperature, good acid and alkali resistance and chemical solvents, good fluidity, good insulation, poor weather resistance, 0C° easy to become brittle, stress cracking resistance.

Automotive industry (mainly using PP containing metal additives: fenders, ventilation pipes, fans, etc.), equipment (dishwasher door liners, dryer ventilation pipes, washing machine frames and covers, refrigerator door liners, etc.), consumer goods (lawn and garden equipment such as lawn mowers and water sprinklers, etc.)

PC

Good impact resistance, good insulation, geometric stability, good heat resistance, low embrittlement temperature (-130 C°), good weather resistance, low creep, high transparency, good mechanical properties, poor solvent resistance, stress cracking phenomenon, poor fatigue resistance, poor fluidity, small shrinkage, easy hydrolysis in boiling water, good gloss, large friction coefficient.

The application and development of polycarbonate is to develop in the direction of high composite, high function, specialization and serialization, and has launched a variety of optical discs, automobiles, office equipment, boxes, packaging, medicine, lighting, film and so on.

PTFE

Polytetrafluoroethylene [PTFE,] is one of the best corrosion resistance materials in the world today, so it has the reputation of "plastic king". It can be used in any kind of chemical medium for a long time, polytetrafluoroethylene seals, gaskets, gaskets. Polytetrafluoroethylene seals, gaskets, sealing gaskets are made of suspended polymer polytetrafluoroethylene resin molding. Compared with other plastics, polytetrafluoroethylene has excellent chemical corrosion resistance and temperature resistance, and it has been widely used as sealing materials and filling materials.

PA (Nylon)

PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, and low friction coefficient, a certain flame retardant, easy to process, suitable for reinforced modification with glass fiber and other fillers, improve performance and expand the scope of application.

This kind of product is widely used, it is a good material for plastic replacement of steel, iron, copper and other metals, and is an important engineering plastic.

PEEK

Peek material is a kind of high performance engineering plastic, which has the characteristics of high temperature resistance, chemical stability, good mechanical properties and biocompatibility. It can manufacture and process various mechanical parts, such as automobile gear, oil screen, shift starting disk, aircraft engine parts, automatic washing machine runner, medical equipment parts, etc., which are applied in aerospace, automobile manufacturing, electronic and electrical, medical and food processing fields.

POM

POM material has low strength, but good thermal stability, is not easy to decompose, has a wide processing temperature range (about 50 ° C), and has good stability to acid and base. It is an engineering plastic with excellent comprehensive properties. It has good physical, mechanical and chemical properties, especially excellent friction resistance. Commonly known as steel or steel, it is the third largest general engineering plastic. Suitable for the production of wear resistant parts, transmission parts, and chemical, instrumentation and other parts.

The Process of Injection Molding

Standards	Description
Maximum Part Size	1500×1000×500 mm
Manimum Part Size	2×2×2 mm
Part accuracy	+/- 0.1 mm
Injection mold types	Steel and aluminum molds.
Injection mold types	Mold life below 2000, 6000, 50000 and over 100000 uses
Mold Cavity Tolerances	+/-0.01mm
Wall Thickness	0.5 mm to 5 mm
Draft	0.5° to 2°
Reinforcement ribs	0.5 mm to 5 mm thick
Bosses	Diameter 3 mm to 10 mm
Lead Time	Most orders can be completed within 15 working days

Advantages of Injection Molding Services

Injection molding is an efficient and precise manufacturing and processing method that can produce a large number of plastic products in a short time. And since injection molding requires the use of a closed mold, the dimensional accuracy and surface quality of the product are relatively high. This also makes injection molding a common mass production processing method.
Most modern injection molding equipment adopts advanced automation control systems, which can realize automatic feeding, automatic molding, automatic discharge and other functions. Not only does it save manpower, but it also reduces product costs and improves production efficiency.
By changing the mold structure and injection molding process parameters, injection molded products of various shapes, sizes, and materials can be produced. Not only can complex product structures be manufactured, but also specific physical, chemical and mechanical properties can be provided to the product.