injection moulding POM acetal delrin gear wheel engineering plastics
Description:
POM (Full-name: Polyformaldehyde), is a engineering plastics of non-side-chain, high density, high crystalline and linear polymer, which is praised "Plastic Steel", and has comprehensive excellent performances, such as: wear-resistance, high hardness, anti-impregnant, good rigidity (Tensile modulus of elasticity), chemical stability, isolation resistance and dimensional stability. POM has widely applied in Automobile industries, electronic and electric products, commodity, pipeline & fittings, exact apparatus and so on, which can be instead of the bronze, Zinc, tin and other metals.
Except POM-H, is often copolymerized with ethylene oxide together, in order to avoid the melting of POM material in the high temperature. POM-H has the better performances than POM-C in its high crystalline, mechanical strength and rigidity. And POM-C has the better performances than POM-H in its low melting point, temperature stability, fluxion characteristic and machining capability.
Father more, POM-H+PTFE, which is made from the Delrin POM Resin that maxed Teflon fiber symmetrically, has the low co-efficient of frication, good lubrication, wear-resistance, non-creepage resistance.
Data Sheet of POM
Property |
Item No. |
Unit |
POM-C |
POM-H |
POM-H+PTFE |
Mechanical Properties |
1 |
Density |
g/cm3 |
1.41 |
1.43 |
1.50 |
2 |
Water absorption(23ºC in air) |
% |
0.20 |
0.20 |
0.17 |
3 |
Tensile strength |
MPa |
68 |
78 |
55 |
4 |
Tensile strain at break |
% |
35 |
35 |
10 |
5 |
Compressive stress(at 2%nominal strain) |
MPa |
35 |
40 |
37 |
6 |
Charpy impact strength (unnotched) |
KJ/m2 |
≥150 |
≥200 |
≥30 |
7 |
Charpy impact strength (notched) |
KJ/m2 |
7 |
10 |
3 |
8 |
Tensile modulus of elasticity |
MPa |
3100 |
3600 |
3200 |
9 |
Ball indentation hardness |
N/mm2 |
140 |
160 |
140 |
|
10 |
Rockwell hardness |
- |
M84 |
M88 |
M84 |
Model |
plastic gear pinion |
Material |
POM / Derlin / Acetal or customized |
Diameter |
5-200mm or customized |
Length |
500mm,1000mmor customized |
Color |
White,Black,Natural,Rice Yellow brown ,ect. |
OEM & ODM |
Yes |
Certification |
ISO9001,SGS,FDA,RoHS,Test Report,ect. |
Free Sample |
Yes |
Density |
1.6g/ cm2 |
Shape |
sheet, rod, tube, gear, pulley, guide rail......you can customize as you need |
Packing |
Plastic bags,Cartons,Wodden case,Pallet,Container,ect. |
Advantage |
One stop procurement |