Delrin For CNC Machining: Tips, Advantages & Applications

DALIAN, China - May 24, 2021 - PRLog -- What Is Delrin?

Delrin is often referred to as acetal (polyoxymethylene) homopolymer. It has impact and wear resistant semi-crystalline thermoplastics. Delrin plastic is popular in a wide range of machining applications and is an ideal material for parts designed to replace metal.

It has a density of 1.410–1.420 g/cm3 and is rigid at a temperature of -40°C. Its crystallinity is 75-85% and its melting point is 175°C.

The world's leading companies use Delrin for high-load mechanical applications, such as gears, safety restraints, door systems, conveyor belts, healthcare delivery devices, and other demanding products and parts. It combines low friction and high wear resistance with the high strength and stiffness required for such applications. Although Delrin is opaque in nature, it can provide all colors. Delrin also works well with metals and other polymers, and provides excellent dimensional stability in high-precision machining.

Advantages Of Delrin

Due to its material properties and processability, Delrin is a popular engineering thermoplastic used for CNC machining. Its main advantages are:

Low Moisture Absorption:

Delrin can operate in a humid environment with little impact on performance or size. It is chemically resistant to hydrocarbons, solvents and neutral chemicals.

Good Abrasion Resistance

With a low coefficient of friction and a hard and elastic surface, Delrin is the material of choice for many wear applications.

Machinability:

Delrin is an easy-to-cut plastic with excellent dimensional stability. This makes it easy to cut to tight tolerances.

Strength, Toughness And Impact Resistance:

Delrin is a tough, high-strength material suitable for demanding applications.

Moisture And Chemical Resistance:

Delrin is resistant to solvents, gasoline, alcohol and other chemicals, as well as moisture resistance.

Creep Resistance:

Delrin has good creep resistance, making it suitable for long-life end products such as auto parts. It also has good fatigue resistance.

Electrical Insulator:

Delrin is a popular processing material in consumer electronic products due to its electrical insulating properties.

Natural Lubricity:

Delrin has high natural lubricity, so it is a good choice for low friction applications where parts will come into contact with other plastic parts (https://www.sansmachining.com/plastic-parts/).

The combination of these excellent mechanical properties in a single material can achieve thinner, lighter parts and shorter molding cycles, and may reduce costs.
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