HDPE Insulated Pipe jackt Welding Heat Shrinkable Sleeve Tape Joint
FittingProduct Description
Radiation cross - linked heat shrinkable sleeves are mainly used
for the anticorrosion coating of field girth welds, anticorrosive
and thermal - insulated pipes, and waterproof joints of plastic
water supply and drainage pipes.
The technological process of Huashida heat shrinkable sleeve
extrusion line:
First, the PE back film extrusion line manufactures PE films
tailored to client specifications.
Second, the films are transported to a certified irradiation
facility for precise radiation crosslinking, ensuring optimal fire
resistance and tensile strength.
Third, the irradiated films enter the heat-shrinkable sleeve
adhesive coating line, where they undergo:Double stretching to
achieve the desired shrinkage rate;
Adhesive lamination using a proprietary hot-melt formula, extruded
via a specialized reactor and bonded to the substrate under
controlled pressure.The final product exhibits exceptional peel
strength and dimensional stability.
Product Parameters
Composition of the heat shrinkable sleeve extrusion line:
Applications of heat shrinkable sleeves:
Our Advantages
-Adopt advanced technology
-Guarantee steady operation
-High automation level, cutting down labor costs
-Superior anti-corrosion quality, in line with international
standards
-Provide a full-fledged production solution covering design,
installation, commissioning, and training
-Share you 389 sets of production experience from all the world
-Having 9 professional senior engineers
-Maintain a high-end plastic machinery equipment expert workstation
in China
Feature
Fast shrinkage speed, good waterproof performance, good
anti-corrosive performance, long service life, convenient
transportation and fast construction.
installation
When heat is applied to the sleeve wrapped around a joint, the
adhesive melts and becomes a liquid while the sleeve backing begins
to shrink. The radial shrinking forces of the sleeve squeezes the
fluid adhesive into all the pipe surface irregularities, while the
sleeve conforms tightly to the joint profile. On cooling, the
adhesive solidifies, creating a tough bond to the pipe and the
coating.
| ITEM | Standard | UNIT | Data |
| Adhesive | softening point | ASTM E 28 | °C | 70-80 |
| shear strength | DIN 30 672 | N/cm | ≥100 |
| Basic | specific density | ASTM D792 | r/cm 3 | 0.935-0.96 |
| tensile strength | ASTM D638 | Mpa | 15-20 |
| Elongation at break | ASTM D792 | % | 350 |
| hardness | ASTM D2240 | ball | 48 |
| Heat Shrinkable Sleeve | peel strength | ASTM D1000 | N/cm | >150 |
| water-intake rate | ASTM D570 | % | 0.05 |
Certifications
International Trading show
