8 Most Common Non-Metallic Materials in Non-Standard Machinery

1. POM

POM

POM (Polyoxymethylene) is a widely used material in non-standard machinery due to its good characteristics. The surface of POM has low friction and is highly resistant to wear, allowing it to be used continuously at temperatures ranging from -40°C to 100°C.

POM is also known for its good processing size and ability to maintain a working accuracy of 0.03mm at a constant temperature.

It is commonly used for lightweight parts such as shafts and gears.

2. PTEF

PTEF

PTFE (Polytetrafluoroethylene), also known as “Plastic King” or “Teflon”, is a type of polymer material. It has high resistance to both high and low temperatures, with a temperature range of -180°C to 260°C.

PTFE has a very low friction coefficient, with a friction value of 0.04 when in contact with steel, which is close to rolling friction. It is also one of the most resistant materials to corrosion in the world and can withstand any organic solution.

However, PTFE is relatively soft and difficult to process, leading to easy deformation and making it unsuitable for processing high precision parts.

It is commonly used in mechanical design for wear-resistant parts, such as chain guide rails and W-type sealing rings.

3. Nylon

Nylon

Nylon is a commonly used material in non-standard machinery due to its wear resistance and self-lubricating properties. At high temperatures, it performs better than lubricating oil, resulting in a low friction coefficient. Nylon also has high geometric accuracy, making it suitable for processing gear bearings and other parts.

However, it has a temperature resistance limit of 160°C for continuous use. Nylon is also prone to water absorption, which leads to expansion and negatively impacts accuracy when soaked in water.

4. PVC

PVC

Polyethylene is a cheap and widely used material, and is commonly utilized in non-standard machinery.

PVC (Polyvinyl Chloride) is available in both anti-static and non-static forms. Anti-static PVC is commonly used in electronic products, such as in the form of anti-static belts. PVC also comes in both hard and soft varieties. Hard PVC, such as tooling board, is used to bear loads and has a melting point of 75-90°C.

However, it is important to note that PVC should not be used in contact with food as high temperatures can cause the release of carcinogens.

5. Polyurethane

Polyurethane

Pu, also known as “Youli Adhesive”, is a material with good oil resistance, toughness, wear resistance, aging resistance, and adhesion. It has the rigidity of plastic and the elasticity of rubber, making it ideal for industrial use.

Polyurethane is commonly used in a variety of applications such as wheels, including forklift wheels, sliding plate wheels, cigarette maker wheels, bearing wheels, and driving wheels.

In addition, polyurethane is also commonly used as a silencing layer, seal, buffer head, buffer, anti-scratch component, fixture cushion block, and lightweight cushion.

6. ABS

ABS

ABS (Acrylonitrile Butadiene Styrene) plastic is a resin composed of three monomers: acrylonitrile, butadiene, and styrene. The composition of these monomers can be adjusted to produce different ABS resins.

ABS is commonly used for general parts, wear-resistant parts, and transmission components in machinery. It is also one of the most widely used materials for 3D printing due to its stability and versatility.

7. Rubber

Rubber

Rubber refers to a high elastic polymer material that exhibits reversible deformation. It is often used as a coating on drums in machinery to increase the friction coefficient, providing high wear resistance and good sealing performance.

Rubber is commonly used in oil seals and O-rings, but it can age over time, leading to cracking and hardening.

8. Bakelite

Bakelite

Phenolic plastic, also known as phenolic resin, is a material that boasts high mechanical strength and good wear resistance. It is available in both anti-static and non-static forms.

Phenolic plastic is commonly used for tooling boards, fixture base plates, and lightweight materials. However, it has poor mechanical performance and low precision after processing, making it unsuitable for applications that require high loads and high precision.

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Shane
Author

Shane

Founder of MachineMFG

As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.

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