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Mobile WebSiteThe heat shrinkable tube is a heat shrinkable sleeve made of polyolefin. The main material is plastic, which mainly includes PVC, ABS, EVA, PET and so on. It has the characteristics of softness and elasticity. It is generally used for packaging and insulating materials such as electronics, electrical appliances and batteries. It can be tightened by using a hot air blower to provide insulation and protection.
Since the heat-shrinkable tube material is made of cross-linked polyolefin, the strength of the cross-linked molecular bond determines the selection of the heat-shrinkable tube. If the degree of cross-linking is not high, the product can be selected and added. The use of plasticizer can imitate the performance of the raw material, but the shrinkage rate is not high, the shrinkage force (the molecular bond is not strong) is not enough; if the cross-linking molecular bond is strong and the shrinkage rate is large, the product produced by the raw material needs to be selected. Pay attention to the size when selecting the type. It should be selected within the range of 70-80% shrinkage of the heat shrinkable tube. For example, the heat shrinkable tube of 20MM diameter is suitable for objects with a diameter of 14-16MM, and the heat shrinkable tube of 5MM diameter is suitable for the diameter of 3.5-4MM. On the object.
Although heat shrink tubing is now widely used in life, many friends still don't know enough about the use and selection of heat shrink tubing. In the following content, we will introduce some aspects that need to be considered in the purchase of heat-shrink tubing. details as follows:
First, we should consider how to choose a heat shrink tube size: choose the right heat shrink tube size to take the right measurements yourself. Use a vernier caliper or a ruler to measure the diameter of the smallest and largest parts. Choose a heat-shrink tubing that is 20 to 30 percent larger than your maximum measurement. An extra 20 to 30 percent will allow space to expand the tube over the largest part. Don't forget your small gauge to make sure the heat shrink tubing has a high enough shrinkage to the smallest part you want to cover with a tight fit. Finally, when you order, buy a little extra, because some heat shrinkable tubes also shrink longitudinally! This measurement method is called the "longitudinal contraction" specification.
There are some important metrics to consider when choosing a heat-shrinkable tube: the maximum diameter and temperature range of the heat-shrinkable object are two important factors to consider when choosing a heat-shrinkable tube. Because the size of these products varies greatly, heat shrinkage is also an important indicator to consider. Because the shrinkage of the heat-shrinkable tube requires external heating, the temperature resistance of the heat-shrinkable object is also an important indicator for consideration.
