Spot supply of anti-corrosion heat shrinkable tape

Spot supply of anti-corrosion heat shrinkable tape

Heat shrink tape is a new type of anti-corrosion sealing method that uses heat shrink materials for pipeline anti-corrosion. It overcomes the shortcomings of traditional methods of joint coating anti-corrosion, sealing and insulation, and has the following characteristics: chemical corrosion resistance, aging resistance, weather resistance, flame retardancy, easy transportation, simple construction, good sealing performance, high heat transfer efficiency, etc. It can be widely used for joint coating and anti-corrosion of various metal pipelines. The heat shrink tubing produced by our factory is made of polyethylene as the substrate, extruded and molded, and has a special "memory" effect through high-energy radiation. When the expanded and shaped finished product is heated to a certain temperature, it can shrink to the size before expansion, thus achieving the physical phenomenon of heat shrinkage.

Heat shrink tape is a new type of engineering pipeline anti-corrosion, insulation and protection heat shrink product. It is a two-layer or three-layer structure with primer composed of polyethylene and hot melt adhesive. It is mainly used for engineering pipeline protection, joint repair, anti-corrosion, waterproofing and sealing.

Spot supply of anti-corrosion heat shrinkable tape

Surface treatment of hot melt sleeve

There are two methods for rust removal at the mouth of the hot-melt casing: sandblasting and manual electric angle grinder. Sandblasting rust removal is preferred for roads and construction sites with good terrain and easy access to vehicles. Manual electric angle grinder rust removal is used for difficult construction areas. The surface treatment quality of sandblasting rust removal pipe mouth should reach Sa2.5 level in GB8923 "Rust Grades and Preparation Grades of Steel Surfaces before Coating". The quartz sand used for sandblasting and rust removal should be dry, with uniform and impurity free particles, and a particle size between 2mm and 4mm. The working pressure for sandblasting should be between 0.4Mpa-0.6Mpa. Manual electric angle grinder rust removal should reach the standard st3.0 level

Start the air compressor, adjust the air pressure, and open the sand inlet valve to start sandblasting operation. There should be an oil-water filter at the outlet of the air compressor, and the compressor displacement should not be less than 6m3/min.

Pipeline anti-corrosion heat shrink tape is composed of radiation cross-linked polyethylene substrate and special hot melt sealant, which has the function of "shape memory". After heating, use the force of shrinkage to evenly squeeze the melted hot melt adhesive into the weld joint to form a perfect sealing surface, tightly shrink and wrap around the pipeline interface or anti-corrosion components.

The series of products are designed for anti-corrosion and insulation joint repair of buried and overhead steel pipeline welds. It is composed of radiation cross-linked polyolefin substrate and special sealing hot melt adhesive. The special sealing hot melt adhesive can form good adhesion with polyolefin substrate, steel pipe surface, and solid epoxy coating. In the industry, heat shrink tape is called a flexible sleeve, compared to a rigid sleeve called a dead sleeve. In addition to the PE pipe sleeve body, it is also equipped with rubber strips and fixing pieces. Heat shrink tape is convenient for large-scale production and construction, and has many uses: mainly used for interface connection of thermal pipelines, oil pipelines, natural gas pipelines, and anti-corrosion and insulation pipelines. Features: High adhesive strength, good sealing performance, corrosion resistance, long service life, easy to use. Common product specifications for hot melt sleeves (can be customized according to customer requirements, specifications are not limited, outer sleeve diameter: DN200-1880mm)