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The first heat-shrinkable sleeves were introduced [when?] as polyethylene pipeline coatings started to replace bituminous or tape coatings in the oil and gas industry. At the time, the processing for polyethylene to make the sleeve backing was new technology and the adhesives used in sleeves were much the same as those used on pipeline coating.
Polyolefin heat-shrink tubing typically shrinks 2:1 diametrically, [10] [9] but high-grade polyolefin heat-shrink is also available with a 3:1 ratio. [7] Polyolefin tubing may withstand being touched with a soldering iron. [10] PVC tubes are usually lower cost than other materials. [1]
Heat-shrink may refer to: Heat-shrink tubing, for electrical work; Heat-shrinkable sleeve, for pipelines; Shrink wrap, for packaging This page was last edited on 28 ...
Induction heating is a non contact heating process which uses the principle of electromagnetism induction to produce heat in a work-piece. In this case thermal expansion is used in a mechanical application to fit parts over one another, e.g. a bushing can be fitted over a shaft by making its inner diameter slightly smaller than the diameter of the shaft, then heating it until it fits over the ...
Shrink wrap, also shrink film, is a material made up of polymer plastic film. When heat is applied, it shrinks tightly over whatever it is covering. [1] [2] [3] Heat can be applied with a handheld heat gun (electric or gas), or the product and film can pass through a heat tunnel on a conveyor.
Cold shrink tubing is an open ended rubber sleeve, made primarily from rubber elastomers with high-performance physical properties, that has been factory expanded or pre-stretched, and assembled onto a supporting removable plastic core. [1]