Since the beginning of the use of heat shrinkable tape in the 1990s, this product has rapidly occupied the pipe mouth bonding in the oil and gas industry. In particular, the development process has been recognized by the government, and various types of infrastructure have begun to use the heat shrinkable belt. Although at the beginning, there was a bit of "rush" blindly, but after using, it will be found that it has a good effect, and the main uses of the heat shrinkable tape are the following two.
The use of heat shrinkable belt and the cause of warping
When it comes to heat shrinkable tape, many people's reaction is anti-corrosion, which also shows that the anti-corrosion effect is deeply rooted in the hearts of the people. We can often see, including sewage pipes, water pipes and a variety of steel pipes and other anti-corrosion, basically using heat shrinkable belt.
In addition to the important anti-corrosion function, there is also the role of bonding. After the heat shrinkable tape is heated, the internal material melts to form a "belt" like thing, and the two are tightly bonded together so that there is no water leakage or oil leakage. The adhesive effect of heat shrinkable tape can also prolong the service life of the product.
Heat shrinkable tape has the function of anti-corrosion and adhesion, which is widely used in various operations. Especially in the development trend of modern high-tech, it has also been developed, constantly improve its own performance, in order to better development.
Because of its high mechanical strength, heat aging resistance, strong chemical corrosion resistance, and long service life, heat shrinkable belt is widely used in pipeline sealing, anti-corrosion and joint repair remedial measures. However, recently, a consumer who has just purchased the anti-corrosion of water supply and drainage pipes at home said that the phenomenon of warping occurred in less than half a year of construction, to see how to remedy it. According to the principle, its viscosity is good, as long as the construction is careful, this situation will not happen, then why some still have the phenomenon of warping.
There is a problem with stickiness
Before the construction of heat shrinkable belt, it is necessary to coat a layer of uniform and suitable primer on the surface of the pipeline or construction object. When the thickness of the primer is insufficient or uneven, it will cause the phenomenon of warping of the heat shrinkable belt installed in the later construction because of the insufficient viscosity.
Pressure is not enough
In some construction projects, in order to ensure the better adhesion of the heat shrinkable belt, it is necessary to use machinery or label machine to press, and the pressure process should be uniform and the size should be appropriate. When the pressure is too small, the edge warping will occur for a period of time.
Therefore, in the process of using the heat shrinkable belt, in order to better bonding effect and construction effect, the primer painting must be sufficient and uniform, and the pressing force in the construction process should be appropriate, so as to avoid the occurrence of warping phenomenon.
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