Basically, many electronic products require a moisture-proof, flame-retardant, non-corrosive environment. Therefore, the outer layer of wires and the like has some protective materials, which are protective layers. There are many classifications, insulated wires, shielded wires, and high temperature resistance. Wires, etc., are all functions of the outer protective layer. The heat-shrinkable tube is also an insulating protective material that can be used for materials such as wire ends and electrical appliances. Here to introduce the heat shrinkable tube specifications and the material of the heat shrinkable sleeve.
The heat-shrinkable tube is flame-retardant, insulating and temperature-resistant. The heat-shrinkable sleeve is a special polyolefin heat-shrinkable sleeve, also called EVA material. It is soft and elastic. It will shrink when heated (70-90 degrees), and it is widely used for insulation protection of various wire harnesses, solder joints and inductors, and rust and corrosion resistance of metal pipes and rods.
Generally used as insulation for packaging of electronics, electrical appliances, batteries, etc., it can be tightened by using a hot air blower, which functions as insulation and protection. The hair dryer, hot air blower and heat shrink machine can be heated. There are shops in the electrical equipment store. Generally, there are shops that operate telecom materials. They are commonly used on volglobal.com/a/product/Wire_Connector/2020/0617/96.' target='_blank'>wire connectors. Choose a suitable heat-shrinkable tube, put it on the volglobal.com/a/product/Wire_Connector/2020/0617/96.' target='_blank'>wire connector, heat it with a heat gun, shrink the heat-shrinkable tube, and put it on. The connector is secure.
The materials are mainly plastic, including PVC, ABS, EVA, PET and so on.
The heat shrinkable sleeve is a special polyolefin heat shrinkable sleeve, which can also be called EVA. The outer layer is made of high-quality soft cross-linked polyolefin material and inner layer hot-melt adhesive. The outer layer material has the characteristics of insulation corrosion resistance and wear resistance. The inner layer has low melting point, waterproof sealing and high adhesion. advantage.
Performance: With high temperature shrinkage, soft flame retardant, insulation and corrosion resistance. Widely used in various wire harnesses, solder joints, inductance insulation protection, metal pipe, rod rust, corrosion and so on. The voltage level is 600V.
The polymer material undergoes a glassy state with high temperature from low to high, and the performance is close to that of plastic in the glass state, and the performance is close to rubber in the high elastic state.
The material used for the heat-shrinkable tube is in a glassy state at room temperature, and becomes highly elastic after heating.
Use: The heat-shrinkable tube is heated to a high-elastic state during production, the load is applied to expand it, and it is rapidly cooled to maintain the expansion state, so that it enters the glass state, and this state is fixed. When heated, it will return to a high-elastic state, but when the load is gone, it will retract.
Shrinkage ratio 2:1, shrinkage temperature: 84°C～120°C, working temperature range: -55°C～125°C
Heat-shrinkable sleeve has excellent flame retardant and insulating properties, very soft and elastic, low shrinkage temperature and fast shrinkage. It can be widely used in wire connection, wire end treatment, solder joint protection, wire harness identification, resistance and capacitance insulation. Protection, corrosion protection of metal rods or pipes, protection of antennas, etc. The linear polymer material forms a three-dimensional network crosslinked structure under the action of high energy rays. The crosslinked polymer material is greatly improved in terms of mechanical strength, temperature resistance, chemical solvent resistance, and aging resistance, and particularly, acid and alkali resistance are greatly improved.
