DWG 軍標雙壁熱收縮套管
應用
DWG由聚烯烴和熱熔膠共擠制造而成，具有優良的物理、化學及電性能，它可將防潮密封，絕緣及機械保護一次性完成，用于需要密封防水防潮胡電線電纜、配線和連接器的絕緣保護。熱熔膠與塑料、橡膠、金屬有很好胡連接性能，高收縮比能對插頭根部進行有效的保護。DWTM符合美軍標AMS-DTL-23053/4等級3的要求，可以很好地應用于航天、軍工、電子電器、汽車和通訊等很多行業中。
特性
?高收縮比：3:1，4:1
?的熱熔膠和高的收縮比提供了的密封
?不需要移開連接器就可以方便修補損傷的絕緣層
?熱熔膠于塑料、橡膠和金屬有很好的粘接性能
?可選用EVA熱熔膠或聚酰胺（PA）熱熔膠
?符合ROHS、REACH等環保規范
顏色
?標準顏色：黑色
?其他顏色可定制
操作溫度范圍
?連續使用溫度范圍：-55℃～110℃
?低起始收縮溫度：80℃
?低完全收縮溫度：110℃
符合標準
?SAE AMS-DTL-23053/4，Class 3
?UL224 125℃ 600V
性能指標
性能 指標要求 測試方法 典型值
縱向收縮率 ≤10％ ASTM D 2671 ≤5％
抗張強度 10.3MPa min ASTM D 638 ≥12MPa
斷裂伸長率 200％ min ASTM D 638 ≥400％
老化后斷裂伸長率
(熱老化175℃,168小時) 100％ min ASTM D 638 ≥300％
熱沖擊
無裂紋 ASTM D 2671 無裂紋
低溫柔軟性
（-55℃，4小時） 無裂紋 ASTM D 2671 無裂紋
絕緣耐壓和擊穿 2500V,60sec,不擊穿 ASTM D 2671 不擊穿
體積電阻率 1014??cm min ASTM D 876 ≥1014??cm
腐蝕性 無腐蝕 ASTM D 2671 無腐蝕
阻燃性 30秒內自熄 UL224 通過
規格尺寸

規格 收縮前（mm） 收縮后（mm） 標準包裝（m/條或m/卷）
內徑（min） 內徑（max） 壁厚 膠厚
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
壁厚包含膠厚
其他規格尺寸可定制


DWG Army Standard Double Wall Heat Shrinkable
Application
DWG Dual-wall adhesive-lined heat shrinkable tubing is made by co-extrusion of excellent polyolefin compounds 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 typically used in the insulation and sealing of aerospace, military, electrical and electrical and electronic components, automotive and communication industry.
Characteristics
?Shrink ratio: 3:1, 4:1
?Good hot-melt adhesive and high expansion ratio to provide good sealing protection.
?Conveniently repair most damaged cable jackets without removing connectors.
?The adhesive bonds to a wide variety of plastics, rubbers, and metals.
?EVA hot melt adhesive or PA adhesive are available.
?ROHS and REACH compliant
Color
?Standard color: Black
?Other colors are available upon request.
Operating Temperature Range
?Operating temperature: -55℃～110℃
?Minimum shrink temperature: 80℃
?Minimum fully recovery temperature: 110℃
Approvals
?SAE AMS-DTL-23053/4，Class 3
?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 1014??cm min ASTM D 876 ≥1014??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.

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