Glued heat shrink tubing

Glued heat shrink tubing

We often receive inquiries from our customers about what to use for heat shrink tubes. xinray offers heating tools for heat shrink tubes? What about heat shrink tube heaters? Can my hairdryer be used as a heat shrink tube heater? Which tool is suitable for single wall heat shrink tubes, double wall heat shrink tubes, medium and thick wall heat shrink tubes, or special heat shrink tubes, such as silicone rubber heat shrink tubes, Teflon heat shrink tubes, PVDF heat shrink tubes, and other special heat shrink tubes?

First, first of all, the mechanical drive hot air furnace heating tube heating method.

Glued heat shrink tubing, This heating method is often used in some wire harness companies to process a large number of heat shrink tubes. After all, this heating tool for heat shrink tubes is also expensive and not very suitable when using heat shrink tubes in small quantities. Mechanical drive type hot air drying tube heat shrink tube heating method characteristics: generally used for small single-walled heat shrink tubes or double-walled heat shrink tubes, consisting of fans and heat exchangers, suitable for large production.

Second, the use of a hot air gun for heat shrink tube heating

Heat gun heating shrink tube features: manual heat shrink tools, simple operation; suitable for low demand for heat shrinkage, low production, experimental occasions; high-end heat gun products have CNC temperature model.

Third, the use of an oven or oven heating shrink tube. Glued heat shrink tubing

The use of the above two ovens for bus bar heat shrink tube and medium-thick wall heat shrink tube heating is a more common practice, but also more suitable for small and medium batches of large size heat shrink tube heating method.

Fourth, the flame (torch) drying gun for heat shrinkage tube heating

Glued heat shrink tubing
Glued heat shrink tubing

The use of flame guns is generally more common in outdoor work, such as the installation of outdoor pipeline anti-corrosion heat shrink sleeves are the most common in the industry using this flame gun heating. For example, our production department partners in the processing and manufacturing of the bus bar connector box, also use the flame gun to heat the heat-shrinkable tube of the bus bar.

  1. Other heating tools

In addition to the above heat shrink tube heating tools, there are also alternative heat shrink tube heating tools such as lighters, electric heating wire, heating boiling water, household hair dryers, alcohol torches, soldering irons, etc.

Heat shrink tube heating method

Heat shrink tubing is a polymer alloy made from high-quality polymers, scientifically formulated, and mechanically blended. The product is formed by cross-linking and continuous expansion through electron accelerator irradiation. The product is soft, flame retardant, rapidly shrinking, and is widely used in wire connections, solder joint protection, wire ends, wire harnesses and electronic components protection and insulation treatment, marking of wire poles, and other products.

We usually have three methods of heating the shrink tube: lighter, hot air gun, and oven. A lighter is a convenient and common tool for heating shrink tubing, but its temperature can reach up to 1000 degrees, which is much higher than the shrinkage temperature of heat shrink tubing. Therefore, when we use a lighter we must be careful to move it back and forth so that the heat shrink tube is heated evenly as a whole. To prevent the heat shrink tube from burning out, it also does not make the heat shrink tube take on an unsightly shape. However, in reality, we often cannot control the temperature of the lighter which tends to burn the heat shrink tube, so we recommend the use of a professional heating tool.

  1. heat gun heating is a professional tool, heating gun heating method: open the heating gun, preheat the entire section of the copper rod that needs to be a heat-shrinkable sleeve. Heating should be uniform so that the temperature of the copper rod is higher than the ambient temperature, about 60 C.1.2. Place the appropriate length of the sleeve on the copper row and wear protective gloves when operating to avoid burning the copper row. The heating gun should be used to heat the copper row of heat shrink tubing, slowly and evenly from one end to the other or from the middle to both ends. Heating from both ends to the middle is strictly forbidden in order to avoid the appearance of air bubbles and expansion. When heating with a bend, the inner bend should be heated first and then the outer bend to avoid folding of the copper heat shrink tube at the bend. When heating should move the heating gun evenly so that the casing is heated evenly, but the local temperature should not be too high, causing the heat shrink tube to scorch or sticky cold phenomenon. At the end of heating, after cooling the copper bar, according to the requirements of the “Busbar manufacturing and assembly process specification”, use the electric knife to pull out the lap position of the copper heat shrink tube, when pulling the casing, the force should not be too large, so as not to damage the copper row. After processing, if the heat shrinkage tube surface stains, the application of alcohol cloth wipe.
  2. Heat shrink tube heating, when heating the oven, pay attention to the layout evenly, do not stack together to avoid the above problems.

Open the oven, set the temperature at about 60℃~70℃, and preheat the whole object with the heat shrink tube for 5 minutes; remove the heated object from the oven, cover it with the appropriate length of heat shrink tube and wear protective gloves during the operation to avoid burns. After selecting the appropriate temperature and heating time, heat the copper heat shrink tube in the oven according to the information provided by the manufacturer of the copper heat shrink tube, taking care not to squeeze the copper in the oven too much. To avoid stress on the copper heat shrink tube in case of poor heat shrinkage, at the end of heating, after cooling the copper rods with an electric knife, pull out the copper heat shrink tube from the lap according to the “Busbar manufacturing and assembly procedure”. When pulling out the casing, the force should not be too great to avoid damaging the copper bar; after processing, if the surface of the copper tube is stained, it should be cleaned with a rag (impregnated with solvent, if necessary without affecting the insulating properties of the casing).

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