High-quality injection molding machine screw manufacturing · Customized according to process

Choose the right injection screw,Make the quality more stable and the overall cost lower.

StarFriend Screw focuses on the manufacturing of high-quality injection molding machine screws, customizing exclusive screws based on raw material characteristics, equipment parameters and injection molding processes. The truly economical choice is not only the lower purchase price, but also the comprehensive performance of plasticization stability, product quality, production loss and service life.

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PLASTIC MATERIALS & PLASTICIZING

Plastic Materials & Plasticizing

Plasticizing characteristics and screw matching for commodity plastics, engineering plastics, glass fibre, flame-retardant and corrosive materials.

How to balance plasticization with retrofitting cycles

How to balance plasticization with retrofitting cycles

Plasticization should be done in a stable manner within cooling time, while retaining sufficient residual capacity to respond to batches and environmental changes. Material mechani…

How to calculate and control the time spent by material in a tank

How to calculate and control the time spent by material in a tank

The duration of the stay depends on the effective capacity of the drums, the single-module material, the plastic rhythm and the flow back, and is not simply equal to the cycle. Mat…

What's the problem with being too hot or too low?

What's the problem with being too hot or too low?

Nozzle connectors and moulds, the temperature of which affects the visceral viscosity of the front end, fluid salivation, radish and cold. Material mechanisms, plasticization param…

The temperature of the drum should be set according to the material melting process.

The temperature of the drum should be set according to the material melting process.

Temperatures need to be combined with feed, compression and measurement processes, with a set value not equal to the actual temperature of the material. Material mechanisms, plasti…

Why would a screw turn with a surface line? Look.

Why would a screw turn with a surface line? Look.

Large diameter screws at the same rate of rotation have a higher surface speed and the material is cut and hotter. Material mechanics, plasticization parameters, risk diagnosis and…

How back pressure affects the mixing and temperature of plastics.

How back pressure affects the mixing and temperature of plastics.

Appropriate back pressure increases the melting pressure, exhausts and colour dispersion, while increasing cutting and measurement time. Material mechanisms, plasticization paramet…

Could the Melting Index MFI directly represent plastic mobility?

Could the Melting Index MFI directly represent plastic mobility?

MFI is a single point mobility indicator for temperature and payloads and does not fully represent the actual cut range and melting elasticity. Material mechanisms, plasticization…

Why cut and thin?

Why cut and thin?

Most of thermal plastics decrease in their viscosity as they increase the cut-off rate, thus contributing to thin walls and complex flowways. Material mechanics, plasticization par…

How cutting rates change plastic flow behaviour

How cutting rates change plastic flow behaviour

A polymer has different cut-off rates in snails, nozzles and watering, as well as different local viscosity and temperature rises. Material mechanisms, plasticization parameters, r…

How do you balance smelt viscosity with process temperature?

How do you balance smelt viscosity with process temperature?

Warming usually reduces the viscosity of the melting, but excessive warming increases cooling and increases the risk of degradation. Material mechanisms, plasticization parameters,…

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SCREW & BARREL PRODUCTS

Injection molding screw product rolling display

According to the resin material, filling ratio, equipment model and product requirements, select a more suitable screw and barrel solution.