EN44545 Railway Traffic approved GPO3 Thermoset laminated sheet
EN44545 Railway Traffic approved GPO3 Thermoset laminated sheet produced and made by Xiamen Hongcheng Insulating Materials Co.,Ltd,GPO3 is also known as UPGM203 sheet according to IEC60893:2-2003 standard. they are consists of non-alkali glass mat impregnated and boned with an unsaturated polyester resin ,and laminated under high temperature and press
Feature:
High electrical performance，under high temperature,good performance for anti leakage of electronic
High Arc-resistance could reach more than 180 seconds
Flame retardant grade could reach UL94 V-0 termal endurance class could reach Fgrade（more than 160℃）
It is the advance retardance， anti impact，and anti corrosion materail in recent years
Below are GPO3 advantages:
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Hong Cheng Grade |
HC-GPO3 |
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IEC 893 / EN 60893 Grade |
UP GM 203 |
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DIN 7735 Grade |
HM 2471 |
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ANSI (NEMA) Grade NEMA LI-1 |
GPO-3 |
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Items |
Test Method |
Unit |
Typical Values |
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Physical Properties |
Color |
Visual inspection |
---- |
Red/White/Brown/Grey |
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Specific Gravity |
IEC 60893-2:2003 |
g/cm3 |
1.95-2.05 |
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Water absorption |
ISO62:2008 |
% |
≤0.5 |
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Mechanical properties |
Tensile Strength |
IEC 60893-2:2003 |
Mpa |
≥130 |
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Compressive strength |
IEC 60893-2:2003 |
≥300 |
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Flexural Strength |
IEC 60893-2:2003 |
≥180 |
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Impact strength |
IEC 60893-2:2003 |
KJ/m2 |
≥60 |
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Electrical properties |
Volume Resistivity |
IEC 60093：1980 |
Ω·m |
≥ 1.0 x 1010 |
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Surface Resistivity |
IEC 60093：1980 |
Ω |
≥ 1.0 x 1012 |
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Electric Strength ┴ |
IEC 60893-2:2003 |
kV/mm |
≥ 12 |
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Breakdown Voltage // |
IEC 60893-2:2003 |
kV/25mm |
≥ 80 |
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Arc Resistance |
IEC 61621：1997 |
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≥180 |
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Proof Tracking Index PTI |
IEC 60893-2:2003 |
--- |
≥600 |
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Dielectric Constant |
IEC 60893-2:2003 |
--- |
4.0-5.0 |
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Dissipation Factor |
IEC 60893-2:2003 |
--- |
≤0.03 |
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Thermal properties |
Coefficient of Thermal Expansion |
ASTME 228-11 |
1/K |
≤2x10-5 |
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Temperature Index |
IEC 60085:2004 |
℃ |
155 |
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Flame Resistance performance |
Oxygen Index |
ISO 4589-2:1996 |
%O2 |
≥ 30 |
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Flame Resistance |
IEC 60893-2:2003 |
--- |
V-0 |
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Toxicant(Emission halogen etc.) |
E662 |
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Low |
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Other properties |
The anti microbial properties of bacteria |
G21-G22 |
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good |
1. Proficient in advanced programming software, such as: Mcam9.1, UG software programming, to meet the requirements of machining of complex surface;
2. We have a large number of senior engineers, and do the independent development of tooling and fixture to meet the production requirements of customers with high quality, high yield and low cost;
3. We have dozens of high precision CNC machining equipment, can satisfy the customer delivery requirements of shorter production;
4. We have 850 sets of CNC machining center (with a knife) mufti-step processing can complete complex parts;
5. We have many 1000*1200 large platform of Longmen CNC machining centers,can complete large panel parts with high precision production to avoid error caused by splicing processing processing.
More Than 100 CNC machines are ownded ，below are Processing Machines Pictures
