Nylon Injection Molding and Shaping: How to Choose the Right Material and Process
Nylon is a common plastic material with excellent mechanical properties, wear resistance, heat resistance and chemical resistance, suitable for various shapes of injection molding and shaping. Nylon injection molding is a popular process for producing consumer goods, which involves heating nylon pellets and injecting them into a mold. When the nylon cools and hardens, it forms a fine design that can be used for various applications.
In this article, we will introduce the main types and characteristics of nylon, as well as the basic principles and processes of nylon injection molding and shaping. We will also introduce how to choose the right nylon material and process according to the product requirements, as well as the common problems and solutions that may be encountered. Finally, we will introduce the professional plastic customization service provided by www.beeplastic.com website, and how they can help you get high-quality and high-efficiency results.
The main types and characteristics of nylon
Nylon is a copolymer composed of multiple monomers, which can be produced by different ways, usually from crude oil distillation, or from biomass manufacturing. Nylon belongs to thermoplastic materials, which means that it liquefies when heated to the melting point, solidifies when cooled, and can repeat this process without significant degradation.
The following table lists some common types and properties of nylon, as well as their melting points and mold temperatures.
Nylon Type
Characteristics
Melting Point
Mold Temperature
Nylon 6
Good elasticity, dyeability, hard and tough at low temperatures
220 °C
38–107 °C
Nylon 66
Good mechanical properties, chemical resistance, heat resistance
265 °C
100–225 °C
Nylon 12
Good impact strength, low water absorption, oil resistance
178 °C
60–120 °C
Nylon 46
Good thermal stability, RoHS compliant, high heat distortion temperature
295 °C
130–180 °C
Filled nylons
High stiffness-to-weight ratio, strong mechanical properties, one of the strongest plastics
Depends on filler
Depends on filler
The basic principles and processes of nylon injection molding and shaping
Nylon injection molding and shaping is a process of heating nylon plastic to a liquid state and injecting it into a pre-designed mold. When the nylon cools and hardens, it forms a complex shape that can be used for various purposes. This process can be divided into the following steps:
- Dry: Since nylon is a material that easily absorbs moisture, it must be fully dried before injection molding to avoid problems such as bubbles, cracks or reduced strength. The drying time and temperature depend on the type and thickness of nylon.
- Bubbles: In the nylon injection molding process, if the nylon is not sufficiently dried or the injection speed is too fast, bubbles may be generated, affecting the strength and appearance of the product. The solution is to check and adjust the drying temperature and time, as well as the injection pressure and speed.
- Burns: In the nylon injection molding process, if the temperature of nylon is too high or the injection speed is too fast, it may cause local overheating and degradation of nylon in the mold, resulting in black or brown burns, affecting the appearance and performance of the product. The solution is to check and adjust the temperature and injection speed of nylon, as well as the design and cooling of the mold.
- Flash: In the nylon injection molding process, if the pressure or temperature of nylon is too high, or the mold clamping is not tight, it may cause nylon to extrude from the gap of the mold, producing excess edges or protrusions, affecting the appearance and size of the product. The solution is to check and adjust the pressure and temperature of nylon, as well as the mold clamping and cleaning.
Professional plastic customization service provided by www.beeplastic.com website
If you need to produce high-quality and high-efficiency nylon-shaped products, you can choose the professional plastic customization service provided by www.beeplastic.com website. www.beeplastic.com website is a professional company engaged in plastic customization processing, with many years of experience and technology, can provide various types and specifications of nylon products according to your needs. The professional plastic customization service provided by www.beeplastic.com website has the following advantages:
- High-quality materials: www.beeplastic.com website uses high-quality nylon raw materials, which are strictly dried and tested to ensure the quality and performance of nylon.
- Advanced equipment: www.beeplastic.com website has advanced injection molding machines and molds, which can produce various shapes and sizes of nylon products, meeting different application needs.
- Professional team: www.beeplastic.com website has professional designers and engineers, who can provide professional consultation and advice according to your needs, as well as customized solutions.
- Favorable price: www.beeplastic.com website offers favorable price and fast delivery time, letting you enjoy high cost-effective service.
If you are interested in the professional plastic customization service provided by www.beeplastic.com website, you are welcome to contact us at any time, we will serve you wholeheartedly. You can contact us through the following ways:
- Email: beeplastic @beeplastic.com
- Website: www.beeplastic.com
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