4X）4:1汽车线束用高阻燃双壁管

SB（4X） 4:1汽车线束用高阻燃双壁管
产品介绍
4:1汽车线束用高阻燃双壁管由聚烯烃和阻燃热熔胶双层构成，外层为聚烯烃有较高的理化性能、良好的收缩使用性能，内层为低熔点、防水密封和机械应变缓冲的魄阻燃热熔胶。主要功能是密封防水、防腐、防漏气和多股线束，主要应用于电子设备的电线连接、汽车线束、家电线束、电线电缆分支处、金属管线、电线电缆修补潜水泵接线等需要密封的场合。
产品特点
抗紫外线、高阻燃
起缩温度：≥70℃
终缩温度：≥125℃
使用温度：-45℃～125℃
热缩比例：4:1
环保标准：ROHS
标准颜色：外层黑色，胶层白色
外层技术指标
性能 指标 试验方法
拉伸强度 ≥10.4MPa ASTM D 2671
断裂伸长度 ≥300％ ASTM D 2671
热化后强度 ≥7.3MPa 158℃×168h
热化后断裂伸长率 ≥100％ 158℃×168h
轴向变化率 -8%～+8% ASTM D 2671
阻燃性 通过 VW-1
击穿强度 ≥15KV/mm IEC 60243
体积电阻率 ≥1014Ω•cm IEC 60093
热熔胶技术指标
性能 指标 试验方法
软化点 95+5℃ ASTM E 28
吸水率 <0.5% ASTM D 570
剥离强度（PE） ≥120N/25mm ASTM D 1000
剥离强度（AI） ≥80N/25mm ASTM D 1000
规格表
规格
供货内径
(mm) 全缩后尺寸(mm) 标准包装
米/盘
米/根
公制 英制 内径 平均总壁厚 胶层壁厚
Ф6.0 1/4 ≥6.0 ≤1.27 1.30+0.20 0.56+0.20 100
Ф8.0 5/16 ≥8.0 ≤1.65 1.65+0.20 0.76+0.20 100
Ф10.0 2/5 ≥10.0 ≤2.00 1.85+0.20 0.95+0.20 1.22
Ф12.0 1/2 ≥12.0 ≤2.41 2.00+0.20 1.02+0.20 1.22
Ф18.0 3/4 ≥18.0 ≤4.45 2.50+0.20 1.37+0.20 1.22
其他规格尺寸可定制




SB（4X） High Flame-proof Double Wall Tube Of Automotive Wiring Harness
Product introduction
A polyolefin and flame retardant hot melt adhesive form bilayers with high flame retardant double wall tube of 4:1 automotive wiring harness, the outer layer is a polyolefin and physical properties, good use performance of inner shrinkage, low melting point, waterproof sealing and mechanical soul fire retardant hot melt adhesive strain buffer. The main function is to seal waterproof, anti-corrosion, anti leakage and multi strands wire harness mainly used in electronic equipment, automotive wiring harness wire connection, appliance wiring harness, wire and cable branch, metal pipe, wire and cable, wiring etc. Need to repair the submersible pump sealing occasions.
Product features
UV resistance, high flame retardant
Up shrinkage temperature: ≥70℃
The final shrinkage temperature: ≥125℃
The use of temperature: -45℃～125℃
Heat shrinkage ratio: 4:1
Environmental standards: ROHS
Standard color: the outer layer of black and white
The outer layer of technical indicators
Performance Index Test method
Tensile strength ≥10.4MPa ASTM D 2671
The elongation at break ≥300％ ASTM D 2671
Strength after thermal aging ≥7.3MPa 158℃×168h
Thermal elongation at fracture after aging ≥100％ 158℃×168h
Axial change ratio -8%～+8% ASTM D 2671
Flame retardant Pass VW-1
The breakdown strength ≥15KV/mm IEC 60243
The volume resistivity ≥1014Ω•cm IEC 60093
Hot sol technology index
Performance Index Test method
Softening point 95+5℃ ASTM E 28
The rate of water absorption <0.5% ASTM D 570
Peel strength（PE） ≥120N/25mm ASTM D 1000
Peel strength（AI） ≥80N/25mm ASTM D 1000
Specification table
Specification The inner diameter of deliver (mm) The whole shrinkage dimension (mm) Standard packing
M/disk
M/root
The metric system
inch Inside diameter The average total wall thickness Layer thickness
Ф6.0 1/4 ≥6.0 ≤1.27 1.30+0.20 0.56+0.20 100
Ф8.0 5/16 ≥8.0 ≤1.65 1.65+0.20 0.76+0.20 100
Ф10.0 2/5 ≥10.0 ≤2.00 1.85+0.20 0.95+0.20 1.22
Ф12.0 1/2 ≥12.0 ≤2.41 2.00+0.20 1.02+0.20 1.22
Ф18.0 3/4 ≥18.0 ≤4.45 2.50+0.20 1.37+0.20 1.22
Other sizes are available upon request.