DWG 军标双壁热收缩套管
应用
DWG由优质聚烯烃和热熔胶共挤制造而成，具有优良的物理、化学及电性能，它可将防潮密封，绝缘及机械保护一次性完成，用于需要密封防水防潮胡电线电缆、配线和连接器的绝缘保护。热熔胶与塑料、橡胶、金属有很好胡连接性能，高收缩比能对插头根部进行有效的保护。DWTM符合美军标AMS-DTL-23053/4等级3的要求，可以很好地应用于航天、军工、电子电器、汽车和通讯等很多行业中。
特性
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高收缩比：3:1，4:1
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优异的热熔胶和高的收缩比提供了优异的密封
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不需要移开连接器就可以方便修补损伤的绝缘层
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热熔胶于塑料、橡胶和金属有很好的粘接性能
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可选用EVA热熔胶或聚酰胺（PA）热熔胶
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符合ROHS、REACH等环保规范
颜色
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标准颜色：黑色
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其他颜色可定制
操作温度范围
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连续使用温度范围：-55℃～110℃
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起始收缩温度：80℃
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完全收缩温度：110℃
符合标准
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SAE AMS-DTL-23053/4，Class 3
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UL224 125℃ 600V
性能指标
| 性能 | 指标要求 | 测试方法 | 典型值 |
| 纵向收缩率 | ≤10％ | ASTM D 2671 | ≤5％ |
| 抗张强度 | 10.3MPa min | ASTM D 638 | ≥12MPa |
| 断裂伸长率 | 200％ min | ASTM D 638 | ≥400％ |
| 老化后断裂伸长率 (热老化175℃,168小时) | 100％ min | ASTM D 638 | ≥300％ |
| 热冲击
| 无裂纹 | ASTM D 2671 | 无裂纹 |
| 低温柔软性 （-55℃，4小时） | 无裂纹 | ASTM D 2671 | 无裂纹 |
| 绝缘耐压和击穿 | 2500V,60sec,不击穿 | ASTM D 2671 | 不击穿 |
| 体积电阻率 | 1014Ω•cm min | ASTM D 876 | ≥1014Ω•cm |
| 腐蚀性 | 无腐蚀 | ASTM D 2671 | 无腐蚀 |
| 阻燃性 | 30秒内自熄 | UL224 | 通过 |
规格尺寸
|
规格 | 收缩前（mm） | 收缩后（mm） | 标准包装（m/条或m/卷） | ||
| 内径（min） | 内径（max） | 壁厚 | 胶厚 | ||
| 3:1(inch,mm) | |||||
| 1/8(3/1) | 3.0 | 1.0 | 1.00+0.28 | 0.50 | 1.22/200 |
| 3/6(4.8/1.6) | 4.8 | 1.6 | 1.00+0.28 | 0.50 | 1.22/100 |
| 1/4(6/2) | 6.0 | 2.0 | 1.00+0.28 | 0.50 | 1.22/100 |
| 3/8(9/3) | 9.0 | 3.0 | 1.40+0.28 | 0.60 | 1.22/50 |
| 1/2(12/4) | 12.0 | 4.0 | 1.78+0.38 | 0.76 | 1.22/25 |
| 3/4(18/6) | 18.0 | 6.0 | 2.25+0.55 | 0.76 | 1.22/25 |
| 1(24/8) | 24.0 | 8.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 11/2(39/13) | 39.0 | 13.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 4:1(mm) | |||||
| 4/1 | 4.0 | 1.0 | 1.00+0.28 | 0.50 | 1.22/100 |
| 8/2 | 8.0 | 2.0 | 1.00+0.28 | 0.50 | 1.22/50 |
| 12/3 | 12.0 | 3.0 | 1.40+0.28 | 0.60 | 1.22/25 |
| 16/4 | 16.0 | 4.0 | 1.78+0.38 | 0.76 | 1.22/25 |
| 24/6 | 24.0 | 6.0 | 2.25+0.55 | 0.76 | 1.22/25 |
| 32/8 | 32.0 | 8.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 52/13 | 52.0 | 13.0 | 2.54+0.55 | 1.02 | 1.22 |
壁厚包含胶厚
其他规格尺寸可定制
DWG Army Standard Double Wall Heat Shrinkable
Application
DWG Dual-wall adhesive-lined heat shrinkable tubing is made by co-extion of excellent polyolefinpounds and hot-melt adhesive with good physical , chemical and electrical properties. Environmentally seals and protects a wide variety of electrical applications, including back end connector sealing, breakout, and connector-to-cable transitions. High shrink ratio makes it possible to protect cable jackets and connectors. DWTM meets the requirements of military standard AMS-DTL-23053 class 3. It is typicallyed in the insulation and sealing of aerospace, military, electrical and electrical and electronicponents, automotive andmunication intry.
Characteristics
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Shrink ratio: 3:1, 4:1
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Good hot-melt adhesive and high expansion ratio to provide good sealing protection.
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Conveniently repair most damaged cable jackets without removing connectors.
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The adhesive bonds to a wide variety of plastics, rubbers, and metals.
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EVA hot melt adhesive or PA adhesive are available.
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ROHS and REACHpliant
Color
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Standard color: Black
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Other colors are available upon request.
Operating Temperature Range
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Operating temperature: -55℃～110℃
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Minimum shrink temperature: 80℃
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Minimum fully recovery temperature: 110℃
Approvals
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SAE AMS-DTL-23053/4，Class 3
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UL224 125℃ 600V
Property
| Property | Requirement | Test method | Typical data |
| Longitudinal shrinkage | ≤10％ | ASTM D 2671 | ≤5％ |
| Tensile strength | 10.3MPa min | ASTM D 638 | ≥12MPa |
| Elongation at break | 200％ min | ASTM D 638 | ≥400％ |
| Elongation after aging （175℃,168hrs） | 100％ min | ASTM D 638 | ≥300％ |
| Heat shock
| No crack | ASTM D 2671 | No crack |
| Low-temperature flexibility（-55℃,4hrs） | No crack | ASTM D 2671 | No crack |
| Dielectric voltage withstand | 2500V,60sec,no breakdown | ASTM D 2671 | No breakdown |
| Volume resistivity | 1014Ω•cm min | ASTM D 876 | ≥1014Ω•cm |
| Corrosion | No corrosion | ASTM D 2671 | No corrosion |
| Flammability | Self-extinguishing within 30 seconds | UL224 | Pass |
Sizes
|
Size
| As supplied (mm) | After recovered(mm) |
Standard packing (m/pc,m/roll) | ||
| Inside diameter (min) | Inside diameter (max) | Wall thickness | Adhesive thickness (nominal) | ||
| 3:1(inch,mm) | |||||
| 1/8(3/1) | 3.0 | 1.0 | 1.00+0.28 | 0.50 | 1.22/200 |
| 3/6(4.8/1.6) | 4.8 | 1.6 | 1.00+0.28 | 0.50 | 1.22/100 |
| 1/4(6/2) | 6.0 | 2.0 | 1.00+0.28 | 0.50 | 1.22/100 |
| 3/8(9/3) | 9.0 | 3.0 | 1.40+0.28 | 0.60 | 1.22/50 |
| 1/2(12/4) | 12.0 | 4.0 | 1.78+0.38 | 0.76 | 1.22/25 |
| 3/4(18/6) | 18.0 | 6.0 | 2.25+0.55 | 0.76 | 1.22/25 |
| 1(24/8) | 24.0 | 8.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 11/2(39/13) | 39.0 | 13.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 4:1(mm) | |||||
| 4/1 | 4.0 | 1.0 | 1.00+0.28 | 0.50 | 1.22/100 |
| 8/2 | 8.0 | 2.0 | 1.00+0.28 | 0.50 | 1.22/50 |
| 12/3 | 12.0 | 3.0 | 1.40+0.28 | 0.60 | 1.22/25 |
| 16/4 | 16.0 | 4.0 | 1.78+0.38 | 0.76 | 1.22/25 |
| 24/6 | 24.0 | 6.0 | 2.25+0.55 | 0.76 | 1.22/25 |
| 32/8 | 32.0 | 8.0 | 2.54+0.55 | 1.02 | 1.22/25 |
| 52/13 | 52.0 | 13.0 | 2.54+0.55 | 1.02 | 1.22 |
Wall thickness includes adhesive thickness.
Other sizes are available upon request.