SICHUAN FOREVER RADIATION TECHNOLOGY CO.,LTD
Heat Shrinkable Sleeves For Pipeline Joint Coating
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Heat-shrinkable materials are composed of an external backing that is extruded and cross-linked from polyolefin. The internal adhesive is made up of thermoplastic materials. The shrinkage of the backing creates a level of circumferential compression in the coating that supplements the bonding of the sleeve to the pipe joint surface.
Heat-shrinkable sleeves are a field-joint coating system, designed to be one of the toughest coating systems available on the market. The coating system consists of a solvent-free, high-performance epoxy, an adhesive base copolymer, and modified cross-linked polyethylene. This design was made to replicate the structure and meet the performance of mil-applied three-layer PE coatings. These coatings are compatible with all commonly used pipe coatings, including polyethylene, coal tar enamel, and fusion-bonded epoxy.
The multi-functional adhesive is excellent and most capable of allowing lower installation in pre-heat temperature. The adhesive offers bonding to a variety of surfaces such as 3LPE, DFBE, FBE, and CTE, which makes it quite versatile.
Additionally, this adhesive offers full resistance to shear forces induced by soil and thermal movements, making it highly durable. Furthermore, it boasts of superior cathodic disbondment, hot water immersion resistance, and thermal ageing resistance. These remarkable features ensure that the adhesive offers long-term protection against corrosion, making it a highly effective solution.
Utilizing this adhesive can result in a reduction in time and cost. Its ability to bond to multiple surfaces and the fact that it allows lower pre-heat temperature make it an efficient option. It's also important to note that the adhesive can be applied with a wet epoxy primer, which further reduces its installation cost and time.
For further details, please refer to the instructions manual.
Before application of the epoxy primer, make sure to mix both components thoroughly. It is important to ensure that the mixing is complete in order to achieve the desired results. Apply the epoxy primer to a minimum thickness of 150 µm and cover at least 10 mm of the adjacent coating. It is advisable to avoid mixing more primer than can be used during the pot life.
Apply the sleeve while the epoxy is still wet. Prior to application, heat the adhesive. Once the sleeve is wrapped, the closure patch must be heated and applied. The entire sleeve should be heat-shrunk to perfectly fit around the joint. Post-heating is necessary in order to soften the sleeve and remove any trapped air.
Sichuan Forever Radiation Technology Co.,Ltd, Former name Sichuan JIUYUAN Science & Technology(Dec.,2000), Located in China Science City, it belongs to Sichuan Forever Holding Group, the asset management organization of China Academy of Engineering Physics. It is a hybrid enterprise producing military and civilian products. After inheriting CAEP's China's first Russian accelerator, it has developed a company focusing on nuclear technology and accelerator, engaged in applied research and product development of radiation processing industry And production, including pipeline irradiation cross-linking materials, communication cable irradiation cross-linking materials, power cable irradiation cross-linking materials, electron irradiation cross-linking materials, polyethylene cross-linking foaming, electron beam irradiation sterilization, radiation disinfection, flue gas irradiation desulfurization and denitrification, etc., and relying on CAEP strong new material technology, carried out engineering plastics, polymer materials, hot melt adhesive and other related products, and technology transformation Let's have a look at materials and testing services.
Sichuan Forever Radiation Technology Co.,Ltd is the birthplace of China's radiation crosslinking materials. As the National Rradiation Crosslinking Heat Shrinkable Material Technology Center, the pipeline radiation crosslinking heat shrinkable material technology has been extended to most of China's pipeline radiation crosslinking heat shrinkable manufacturers. The products are manufactured according to Chinese Standard GB/T23257 / Russian Standard GOST P 51164 / European Standard EN12068 / German Standard DIN30672 / International Standard Organizatio ISO21809. China's first DVGW testing and certification enterprise in 2005.
Sichuan Forever Radiation Technology Co.,Ltd, The main products are 3LPE Heat Shrinkablhke Sleeve, HDD Pipeline Shrinkable Sleeve, 2LPE Heat Shrinkable Tape, 3LPE Heat Shrinkable Tubular Sleeves, Polyethylene Pressure-sensitive Adhesive Shrinkable Sleeve, 3LPE & 3LPP Heat Shrinkable Wrapping Tape, Heat Shrinkable Water-proof End Cap,3LPP Heat Shrinkable Sleeve, Epoxy Primer, Repair Patch, PE Melt Stick, Heat Shrinkable 3LPE Tape For Pre-insulated Pipe,Cold-applied polymeric tape coatings, OEM Heat Shrinkable Material Service, Auto-Matic and Manual Type Installation Tools, Irradiation Service, Third Party Inspection Service.
Sichuan Forever Radiation Technology Co.,Ltd has 3mev10ma electron traveling wave linear accelerator made in Japan and 10MeV electron traveling wave linear accelerator made in Russia 1mA electron accelerator, EPS ﹣ electron beam irradiation processing system, dry electronic thin tube continuous expanding machine made in Korea, wet large diameter continuous expanding machine made in Korea, pipe compound extrusion unit made in Korea, continuous gluing machine made in America, sheet continuous laminating machine, continuous stretcher, continuous crimping machine, end cap automatic expanding machine and other production equipment, as well as Huck rheology tester made in Germany and Regel electronics Universal testing machine, 150KV partial discharge testing system, crosslinking degree testing system and other experimental testing equipment have established the most advanced and complete variety of heat shrinkable products production base in China.