Railway Supplies Railroad, PA66 or HDPE Plastic Dowel for SKL fastening system
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- Supplier: Hebei Yichen Industrial Group Corporation Limited
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Product Overview
Description
PA66 or HDPE Plastic Dowel for SKL fastening system
Also know as plastic sleeve, plastic insert, concrete dowel, concrete insert, Nylon Dowel, PA66 Dowel, being widely used in rail fastening. The Material are HDPE, PA66.
HDPE
No. | Technique parameter | Unit | Technical requirement | Value |
1 | Density | g/ | 0.95-0.98 | 0.95 |
2 | Tensile strength | Mpa | ≥19 | 19 |
3 | Elongation | % | >80 | 150 |
4 | Melting point | °C | 170-190 | 190 |
5 | Insulation resistance | Ω | ≥1×1010 | 3.5×1010 |
6 | Hardness | A | ≥98 | 98(A) |
PA66 : Nylon 66.69%, glass fiber 30%, other 1%
No. | Technique parameter | Unit | Technical requirement | Value |
1 | Density | g | 1.3—1.45 | 1.45 |
2 | Tensile strength | Mpa | ≥170 | 178 |
3 | Elongation | % | ≤4.4 | 4.0 |
4 | Bending Strength | Mpa | ≥250 | 290 |
5 | Impact Strength(No gap) | KJ/m2 | ≥80 | 85 |
6 | Melting point | °C | 250°C—270 | 270 |
7 | Insulation resistance | Ω | ≥1×108 | 5×108 |
8 | Glass fiber content | % | 30—35 | 35 |
9 | Hardness | HRR | ≥110 | 118 |
Rail Screw Dowel is a counter-party of Screw Spike, which is pre-inserted into the concrete sleeper. When we use the rail fastening system, the plastic dowel performed as the fastening base.
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