POM plastic (polyoxymethylene polyacetal) is a highly flexible engineering plastic with excellent mechanical strength, abrasion resistance, and chemical resistance.
It is used in many industrial parts because it is easy to process and available at low cost.
The continuous use temperature is 85°C to 105°C, the melting point is 175°C, and the glass transition point is -50°C.
POM is strong and resistant to cracking, and unlikely to crack or chip during handling or use, making it easy to process.
1. POM characteristics
POM is a flexible engineering plastic with excellent mechanical strength, abrasion resistance, and chemical resistance.
It is used in many industrial parts because it is easy to process and available at low cost.
The continuous use temperature is 85℃ to 105℃, the melting point is 175℃, and the glass transition point is -50℃.
POM is strong and resistant to cracking, and is resistant to cracking or chipping during handling or use, making it easy to process.
After cutting, the cut surface has a smooth finish.
POM also has low water absorption and high abrasion resistance, so dimensional changes are unlikely to occur even after long-term use.
Mechanical strength
It has excellent tensile strength (67 to 69 MPa), flexural strength (88 MPa), and flexural modulus (2580 MPa).
Heat resistance
POM has excellent heat resistance among plastic materials, and its continuous use temperature is 85℃ to 105℃.
If a higher temperature environment is expected, MC nylon or super engineering plastics are more suitable options.
Chemical resistance
It is resistant to most chemicals and organic solvents, except for strong acids.
Precautions for using and handling POM
POM has low weather resistance among engineering plastics, so it is not suitable for outdoor use.
It is flammable, so use it away from fire sources.
In addition, it is difficult to adhere because there is no compatible adhesive.
2. Purpose
Semiconductor manufacturing equipment parts such as cams, guides, liners, jigs, etc.
Food equipment parts, electronic equipment parts, machine parts.
3. Examples of use of POM processed products
Food industry
POM grades intended for applications in contact with food are used for production line components.
POM is selected to address the problem of component deterioration and performance degradation due to stress damage and friction with other components.
POM is suitable for manufacturing food machinery parts because of its high mechanical strength, wear resistance, and excellent chemical resistance.
This prevents contamination from breakage and debris during handling.
Automotive industry
POM is also used in the automotive industry, where metal parts are increasingly being replaced to reduce the weight of products.
POM has high heat resistance and suitable for manufacturing nuts, covers, valves, etc. of fuel system parts.
Here, high viscosity POM grades and more functional slipperiness grades are used.
4. Supported technologies
Milling
Machining centers are machine tools that can both process and automatically change tools. Because it is computer controlled, high machining accuracy is always achieved. It is used to process parts with complex shapes.
Turning
Turning is a machining method in which the workpiece and the turning tool are moved to "cut," "drill," and "turn." The materials used are very diverse, and it is used to process a variety of parts. It is intended for lathe machining because it performs a circular motion of the workpiece.
