Electric melting sleeve manufacturer

Electric melting sleeve manufacturer

Characteristics of hot melt sleeve manufacturers
(1) Wide bonding range: can be used with steel PE、 Epoxy coating and other materials are used for bonding.
(2) Strong corrosion resistance: It can effectively shield the penetration and corrosion of various media, and has the properties of aging resistance, environmental stress cracking resistance, and UV radiation resistance.
(3) High mechanical strength: high compressive, impact, and shear strength.
(4) Wide range of usage environment: Construction can be carried out within the temperature range of -25 to 35 ℃.
(5) Non volatile, safe to use.
(6) Long service life.
(7) Easy to construct and highly operable.

Hot melt sleeve pipeline joint leather supplier Taizhou foam pipeline interface black leather how much does it cost? Hot melt sleeve installation: 1. When installing the hot melt sleeve, the joint area should be filled with soil and dirt. Place the hot melt sleeve in the middle of the interface and ensure that the electric heating wire is placed on top of the outer cover; 2. Overlap the hot melt sleeve and place a pressure plate at the large longitudinal joint of the hot melt to ensure tight contact at the interface overlap. The electric heating ratio parts at both ends of the hot melt sleeve should be tightly tied and secured with packing tape, without loosening; 3. Connect the electric heating wire on the hot melt sleeve to the control box (output), start the switch, and set the voltage and power on time according to the specification reference table; 4. When melted polyethylene overflows from the edge of the joint, cut off the power or automatically cut off the power; 5. Generally, depending on the on-site environment, the hot melt sleeve interface requires 20-30 minutes of natural cooling before removing the packing tape and pressure plate.

Electric melting sleeve manufacturer

Cathodic protection current can only have an effect on inhibiting corrosion when it reaches the metal surface. For the method of adding U to the shrinkage band, due to the poor bonding ability between the shrinkage band and the anti-corrosion layer of the pipe body, it is prone to wrinkling and cracking under sunlight or soil stress. At the weld seam
It is difficult to achieve no bubbles or hollows. If moisture enters the contraction zone F surface, it will enter the interior along the weld seam. Due to the insulation effect of the shrink band, cathodic protection current cannot reach the corroded surface and cannot prevent corrosion. Advantages and disadvantages of shrink fit patching:
Shrinkage bands have high mechanical strength and can improve the resistance to mechanical damage when pipelines are laid in trenches. This is also the basic starting point for using shrink bands in the beginning.
The surface heating of the pipeline is difficult to achieve uniformity, especially when the diameter is large, resulting in uneven shrinkage of the shrinkage band. After the pipeline is buried, the shrinkage band continues to creep and lose its bonding force with the pipeline;
It is not easy to judge the construction quality from the appearance, and it requires high quality of operators, making it difficult to ensure quality;
Once moisture enters below the shrink band, cathodic protection cannot be effective due to the current shielding effect of the shrink band, and corrosion cannot be prevented.
For pipelines with a diameter exceeding 900 millimeters, foreign countries generally do not use shrinkage tape for joint repair, but instead use anti-corrosion primer and cold wrapping tape.