Heat Shrinkable Tube heating tips and precautions

The Heat Shrinkable Tube and the heating device do not need to be too close. Be sure to pay attention to the distance between the water and the Heat Shrinkable Tube, that is, move 4~5cm evenly. When heating and shrinking, do not exceed the high-temperature resistance limit of the Heat Shrinkable Tube. The high temperature limit will cause the product to "melt" and return to its original state.

Appearance identification of Heat Shrinkable Tube: From the visual impact, the surface of the Heat Shrinkable Tube is smooth, the color is uniform, and there are no large wrinkles and wrinkles. Observe whether there are impurities and bubbles in the Heat Shrinkable Tube. If it is a Heat Shrinkable Tube with glue, observe the Heat Shrinkable Tube. Whether the tube adhesive has fallen off, whether the color of the hot-melt adhesive has turned yellow, and the Heat Shrinkable Tube with glue that stays for a long time usually has a yellowish hot-melt adhesive or even has the glue open.

Wall thickness of the Heat Shrinkable Tube: Observe with eyes, it is best to use a micrometer to accurately measure whether the thickness of the Heat Shrinkable Tube is uniform, and whether the wall deviation rate of the Heat Shrinkable Tube is qualified.

Heat Shrinkable Tube raw material: The Heat Shrinkable Tube raw material determines the basic performance parameters and characteristics of the Heat Shrinkable Tube. PE Heat Shrinkable Tube, PVC Heat Shrinkable Tube, EMDM Heat Shrinkable Tube, silicone Heat Shrinkable Tube, PVDF Heat Shrinkable Tube, Teflon Heat Shrinkable Tube, etc., there are certain differences in industries where different raw materials are used.

Shrinkage ratio of Heat Shrinkable Tube: You can try to cut a section of Heat Shrinkable Tube, use a lighter and other special heating tools to heat up and shrink, and compare the shrinkage ratios and shrinkage conditions of various Heat Shrinkable Tube. It can be completely shrunk, and the quality of Heat Shrinkable Tube that meet the requirements passes .

Secondly, choose the most suitable heating tool. When heating and baking, the outer flame of the flame forms an angle of 45° with the surface of the Heat Shrinkable Tube. Be sure to move back and forth to make the Heat Shrinkable Tube as a whole be heated. Slowly from one end To the other end, the heating should be uniform, avoid air bubbles, ensure the shrinkage of the Heat Shrinkable Tube, and trim it after cooling.

In addition, Heat Shrinkable Tube have different heat-shrinkage multiples. The specification of Heat Shrinkable Tube generally refers to the product of the maximum allowable nominal diameter and the shrinkage multiple after the waterproof sleeve shrinks. For example: the shrinkage ratio of the Heat Shrinkable Tube is 2:1. In other words, you can choose a Heat Shrinkable Tube that is twice the diameter of your own product for application. For example, if the diameter of the quilt cover is 20mm, you can choose a Heat Shrinkable Tube with a diameter of 40mm.

Finally, for parallel line objects such as cables, it is sufficient to select heat-shrinkable sleeves with the same diameter as the product; safety protection for busbars such as power plants and electric control boxes must use busbar heat-shrinkable sleeves, which require sealing Waterproof Heat Shrinkable Tube is used.