I. Foreign Equivalent Grade
XH-01A SE4
II. Illustration
With Chlorinated Polyethylene (herein below called CPE) elastomer CM361M as basic material, blended with other additives, CPE compound has excellent properties of flame retardancy, oil-proof, wearing-proof, tearing-proof, good resistance to cold, weathering and excellent mechanical properties. Our DCH01A rubber-sheath compound follows GB7594-87 standard or SE4. Rubber sheath made by CPE CM361M is the ideal substitution of CR or CSM compounds due to its excellent properties, good extruded rubber surface and lower price.
III. Application
1. Rubber cable sheath for general-purpose: outer middle type YZW (245IEC57) and outer heavy type YCW (245IEC66);
2. Outer sheath of round cable YSF (245IEC58) and flat cable YSFB (245IEX58f) for decoration circuit purpose;
3. Outer sheath YTF (245IEC75) for elevator purpose;
4. Outer sheath for electric welder purpose;
5. Other outer cable sheath that has similar requirements.
IV. Comparison of Material Properties & Standard
No. |
Test Item |
Unit |
GB7594-87
XH-01A |
GB5013.4-1997
SE4 |
DCH01A
Sheet |
DCH01A
Final Pdt |
1 |
Mechanical properties before ageing |
|
|
|
|
|
1.1 |
Tensile Strength |
Mpa |
≥10.0 |
≥10.0 |
12.8 |
12.5 |
1.2 |
Elongation at break |
% |
≥300 |
≥300 |
430 |
450 |
2 |
Mechanical properties after ageing (75°C, 10days) |
|
|
|
|
|
2.1 |
Change ratio of Tensile Strength (Maximum) |
% |
-15 - +15 |
-15 - +15 |
8.5 |
7 |
2.2 |
Change ratio of Elongation at break (Maximum) |
% |
-25 - +25 |
-25 - +25 |
-10 |
-11 |
3 |
Heat-extending test |
|
|
|
|
|
|
Test condition |
Temperature |
°C |
200 |
200 |
|
|
Load time |
min |
15 |
15 |
|
|
Mechanical stress |
Mpa |
0.2 |
0.2 |
|
|
3.1 |
Elongation in load |
% |
≤175 |
≤175 |
40 |
30 |
3.2 |
Permanent set after cooling |
% |
≤25 |
≤25 |
10 |
5 |
4 |
Dipped mine oil test |
|
|
|
|
|
|
Test condition |
Temperature |
°C |
100±2 |
100±2 |
|
|
Oil-absorption time |
h |
24 |
24 |
|
|
4.1 |
Change ratio of Tensile Strength (Maximum) |
% |
-40 - +40 |
-40 - +40 |
-8 |
-6 |
4.2 |
Change ratio of Elongation at break (Maximum) |
% |
-40 - +40 |
-40 - +40 |
-15 |
-10 |
5 |
Low temperature Tensile test |
|
|
|
|
|
|
Test temperature |
°C |
|
-35 |
|
|
|
Minimum elongation at break |
% |
|
30 |
110 |
|
6 |
Scorched time（140°C） |
Min |
|
|
> 30 |
|
Oxygen Index can be adjusted according to the customers' requirement.
V. Processing Condition
Continuous vulcanization production method is preferred
Reduction ratio of extruder: 1.1:1-1.5:1
Length-diameter ratio: 6:1-16:1(hot feed is suggested if lower than 10:1)
Temperature of extruder: 70-90°C
We can supply the rubber strip if required.
VI. Package & Storage
Generally, 25kgs in one carton box or depends on customers' requirements.
Shape of the material: Rectangle rubber sheet & depends on customers' request.
The material should be stoned at clean, dry, draughty warehouse. |
