What is PU injection moulding?
Polyurethane (PU) injection moulding is a process of injecting polyurethane into a mould to create a variety of parts and products. The PU injection moulding process is versatile and can be used to create a wide variety of parts and products, from simple to complex, for a variety of industries.
What are the benefits of using PU in sports shoes upper?
Polyurethane (PU) is a versatile plastic that can be used for a wide range of applications. In the context of sports shoes, PU can be used for the upper part of the shoe. The benefits of using PU in sports shoes include its durability, flexibility, and weight.
PU is a durable material that can withstand repeated wear and tear. It is also flexible, which allows it to mould to the shape of the foot for a comfortable fit. In addition, PU is relatively lightweight, making it ideal for use in sports shoes.
The different types of PU injection moulding machines
1. Single-stage PU injection moulding machine:
The single-stage PU injection moulding machine is the most common type of PU injection moulding machine. It consists of an injection unit, a clamping unit and a hydraulic unit. The injection unit is used to inject the polyurethane material into the mould, while the clamping unit is used to hold the mould in place during the injection process. The hydraulic unit is used to provide the force required for the injection process.
2. Two-stage PU injection moulding machine:
The two-stage PU injection moulding machine is similar to the single-stage machine, but it has two injections units instead of one. The first injection unit is used to inject the polyurethane material into the mold, while the second injection unit is used to inject a second material, such as a hardener, into the mold. This type of machine is typically used for applications where a high degree of accuracy is required, such as in medical devices or electronics components.
3. Multi-stage PU injection moulding machine:
The multi-stage PU injection moulding machine is similar to the two-stage machine, but it has multiple injections units. each designed for injecting a different material into the mold. This type of machine is typically used for applications where multiple materials are required, such as in automotive or aerospace applications.
How to choose the right machine for your needs
When it comes to choosing the right PU injection moulding machine for your needs, there are a few things you need to take into consideration. The first is the type of machine you need. There are two main types of machines: vertical and horizontal. Vertical machines are best suited for smaller products, while horizontal machines are better for larger products.
The next thing you need to consider is the size of the machine. The size of the machine will dictate the size of the products you can produce. If you plan on producing large products, you will need a larger machine. If you plan on producing small products, you will need a smaller machine.
Finally, you need to consider the price of the machine. PU injection moulding machines can range in price from a few hundred dollars to several thousand dollars. You need to choose a machine that fits your budget and your needs.
Post time: Apr-06-2023