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The production technology of electrical tape

by:Kint      2020-03-29
Craftsmanship: with polyvinylchloride (PVC) as the backing material, which are coated with rubber pressure-sensitive adhesive. they are. Insulating tape, 绝缘胶带) Specifically to the electrician use used to prevent leakage, insulation tape. Also called insulating tape, adhesive tape, composed of baseband and pressure-sensitive rubber. Baseband usually use cotton cloth, synthetic fabric and plastic film, rubber made from rubber increase adhesion resin compound, good viscosity, excellent insulation performance. Insulating tape has good resistant to high voltage, fire and weather resistance and other properties, characteristics, designed for connecting separated electrical wires for electrical insulating and protection purposes. Insulating tape is widely used for under 380 v voltage of wire used bandage, fittings, insulation, sealing, etc electrical operation. Production technology has a brush glue and glue method two kinds. Craftsmanship: with polyvinylchloride (PVC) as the backing material, which are coated with rubber pressure-sensitive adhesive manufacturing. In the process of electricity, although people noticed that the power cord material cross-sectional area the size of the safe use of electric, but often use insulation tape on joint seriously enough. Power line installation is more and more complex, now go under the wood floor, wall, diaphragm and damp underground or in the water. What will happen if improper use insulating tape, leakage, endanger personal safety. So we should correct use of insulating tape, the power cord connection points '+' connection, '-', 'T' connection. Joint should be bound tightly, smooth and no burr, otherwise, before the thread broken, should press gently with combination pliers, first round to the inlet pressure, then side, thread will break in disconnect joint. If the joint in a dry place, should be with black tape wrapped around 2 insulation layer, then wrap plastic tape 2 layer, then stretched around 200%, with insulation adhesive belt around 2 ~ 3 layers, the last 2 layers of plastic adhesive tape. Because of the large directly using the plastic tape shortcomings: plastic tape over time does easy dislocation, glue; Electrical load weight, fever, joint plastic tape is easy to melt contraction; Mains connections in the terminal box mutual extrusion, connector have burr, it is easy to plunge into the plastic tape, etc. The hidden danger will directly endanger the personal safety, caused by short circuit, causing a fire. And use black insulation tape will not appear the above situation, it has a certain strength, flexibility, can tightly around tapping for a long time, affected by time and temperature and compact shape, will not fall off, and flame retardant. Moreover, with black tape wrapped around again after plastic insulation tape to moisture, rust. Insulating adhesive tape, of course, also have defects, the waterproof performance is good but it is easy to break, so I need to tie up as a protective layer, layer 2 plastic tape on the insulation of the joint and the joint adhesive with each other is not sticky, better performance
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