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Nylon PU Vacuum Casting Parts LRIP equipment Components Plastic parts 60-75 Shore D
Product Description:
Vacuum casting uses silicon moulds to make a high-quality prototype of plastic and rubber components using two-component polyurethanes resins.
What is Vacuum casting?
Vacuum casting, sometimes referred to as Urethane casting or Polyurethane casting uses silicone moulds to make plastic and rubber components under vacuum. It is an extremely adaptable manufacturing process capable of mimicking the injection moulding to produce complex parts in polyurethane resins and cast nylon.
Due to the process being under vacuum, it produces high-quality bubble-free casting with smooth surface texture without any blemishes.
Vacuum casting can be extremely useful in rapid prototyping injection moulding parts and worth considering when selecting rapid prototyping processes for plastic or rubber parts.
Applications of vacuum casting
Vacuum casting is one of the most cost-effective ways to produce high quality, low volume plastic parts which can be similar to injection moulding parts
The parts are especially suitable for form, fit and function tests during the embodiment design stages, where they can be used for marketing, field user testing and product design verification purposes
There are many Urethane casting resins commercially available that can be used to create parts to satisfy a wide range of design requirements such as temperature requirements, different surface textures, hardness, etc.
Materials are also available to create parts that are fully opaque, translucent or completely transparent
Sometimes high-quality wax masters can be made using vacuum casting for investment casting to increase the finer details of intricate features
| Time frame | Within 24 hr – 5 working days for up to 30-50 parts |
| Material choice | Wide variety of materials available |
| Accuracy | ±0.3% (with a lower limit of ± 0.3 mm on dimensions smaller than 100 mm) |
| Minimum wall thickness | To ensure that the mould is filled properly, a wall thickness of at least 0.75 mm is necessary. But best results are achieved with a recommended wall thickness of 1.5 mm |
| Maximum part dimensions | The size of the mould is limited by the dimensions of the vacuum chamber |
| Typical quantities | Up to 50 parts per mould |
| Surface structure | Gloss to Matt surface finish can be obtained |
Polyamide commonly known as nylon (Nylon), the English name Polyamide (PA for short), is the main chain of molecules containing repeating amide groups - [NHCO]- thermoplastic resin general term, including aliphatic PA, aliphatic-aromatic PA and aromatic PA, which aliphatic PA varieties, large production, widely used, and its name by the synthesis of monomer specific carbon atom number.
As polyamide has non-toxic, lightweight, excellent mechanical strength, abrasion resistance and good corrosion resistance, it is widely used instead of copper and other metals in the mechanical, chemical, instrumentation, automotive and other industries in the manufacture of bearings, gears, pumps and other parts. Polyamide melt spun into silk has high strength, mainly synthetic fibres and can be used as medical sutures.
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