Heat shrinkable tubes have multiple functions such as flame retardancy, insulation, anti-corrosion, and sealing and fixation. Heat shrinkable tubes are often used in daily work. Everyone knows that heat-shrinkable tubes have the function of shrinking when exposed to heat, but they still have little idea of what methods can be used to heat heat-shrinkable tubes. So today I will recommend several commonly used heating methods for heat-shrinkable tubes.

1. Lighter. The first method is the simplest and most convenient for men who smoke. It is to use the flame of a lighter to heat and shrink. This method is suitable for connecting a wire with a heat shrink tube or a heat shrinkable ring. tube, test the shrinkage performance of the heat shrink tube and so on. That is, if the quantity is very small, you can use a lighter to heat and shrink the heat shrink tube.

When using a lighter to heat the heat shrink tube, you need to pay attention. The flame should be 2-3cm away from the heat shrink tube. Otherwise, the heat shrink tube will be easily burned black. It doesn’t matter if it is a black heat shrink tube. It does not matter if it is a heat shrink tube of other colors. The black layer on the surface of the tube is ugly, and it needs to move back and forth during the heating process. You cannot bake it in one place. It is easy to burn the heat shrink tube, so you must pay attention here.

2. Hot boiling water. This heating method is often used to heat and shrink fishing rod heat shrinkable tubes, because the fishing rods are covered with a layer of heat shrinkable tubes. This is an appearance part and needs to be beautiful. However, ordinary individual users do not have professional heating tools. If they use a lighter or a gas stove to heat, the fishing rod cannot withstand such high temperatures. If it is not handled well, the overall quality of the fishing rod will be damaged and it will also cause unsightly appearance.

Why can the fishing rod handle heat shrink tube be heated with boiling water? Because the temperature of boiling water is usually between 95-100°C, and the shrinkage temperature of heat-shrinkable tubes is between 80-110°C, boiling water can completely shrink the heat-shrinkable tubes. The appearance of the heat shrinkable tube heated and shrunk in this way will not be damaged and will be more beautiful and beautiful. Affected by the temperature environment, if the temperature is too low and the shrinkage is not in place, you can directly put the heat shrink tube into a hot water kettle and boil it.

3. High-power industrial hot air gun. This heating method is the most widely used. If there is a company that uses heat shrink tubes, everyone will have a hot air gun, which is easy to use. It is basically suitable for heating and shrinking all types of heat shrink tubes. After adjusting to the corresponding temperature, blow directly on the heat shrink tube, and the heat shrink tube will shrink easily.

Precautions when heating the heat shrink tube with a hot air gun: During the heating process, it needs to be heated from left to right or from right to left. To avoid air remaining in the heat shrink tube, never shrink the two ends first and then the middle, even if the air is discharged. In the end, wrinkles will be left in the middle, which will affect product quality. The operators need to be given simple training on the operation, and they need to shrink by heating from one end to the other, which has a certain learning cost.

4. Heat shrinkable tube automatic heating equipment. This heating method has a high degree of automation and is suitable for batch heating production. Adjust the temperature to the appropriate shrinkage temperature and heating time, and put the wire harness or products covered with heat shrinkable tubes into the heating machine in batches. After the shrinkage is completed, the product will be automatically transported out through the belt.

This method has high production efficiency, basically does not require manual work, and the labor cost will be greatly reduced. The heat shrink tube is heated evenly, the shrinkage will be relatively smooth, and the quality consistency will be relatively high. However, this method is used to heat longer-sized glued heat-shrinkable tubes, which requires bubbles to be generated inside the heat-shrinkable tubes. Corresponding tests need to be carried out before starting work, or product inspections must be carried out at regular intervals.

The editor of Duwai briefly introduces the four heating methods of using heat shrinkable tubes from personal small quantities to industrial large quantities, including lighters, hot boiling water, high-power industrial hot air guns, and automatic heat shrinkable tube heating equipment, as well as the precautions required for each heating method. matters to facilitate everyone to use the correct heating method to heat shrinkable heat shrink tubing.