What is the insulation grade of golden finger tape? How to look good?

　　Golden Finger TapeGenerally, polyimide is the main color similar to black tea. Mainly high temperature resistance, high tensile strength, good chemical resistance, no residual glue, in line with environmental standards and other requirements. It can be used to protect gold fingers, electrical insulation, motor insulation, etc. Do you know the insulation level of Goldfinger tape?

Gold finger tape insulation grade is H.

The insulation grade of the gold finger tape mainly refers to the heat resistance grade of the insulating material used, that is, the allowable temperature rise refers to the high value of the motor temperature relative to the ambient temperature. According to the current temperature level, the insulation level can be divided into A, E, B, F, H, C, N, r.

In electrical equipment such as generators, insulation materials are relatively weak links. Due to high temperatures, insulation is particularly susceptible to accelerated aging and damage. Different insulating materials have different heat resistance, and the high temperature resistance of electrical equipment of different insulating materials is also different.

In the electrical and electronic industry, Goldfinger tape can be used for high-demand H-level motor and transformer coil insulation wrapping, high-temperature coil end wrapping and fixing, temperature measurement and thermal resistance protection, capacitors and wire winding and other high-temperature conditions, so Goldfinger high-temperature tape The insulation level is H-level.

The gold finger tape should be stored in the warehouse to avoid sun and rain; do not touch organic solvents such as acid, alkali, oil, etc., and keep it clean and dry. It was found that at a distance of 1 meter from the device, the room temperature was between -15 and 40. It should be placed in rolls, not folded, stored for too long, and turned over once a quarter. Do not connect (match) tapes of different varieties, specifications, models, strengths and cloth layers. When loading and unloading the conveyor belt, use a crane and lift it smoothly with a rigging with a beam to avoid damaging the edge of the conveyor belt. Do not load and unload at will, which may cause the coil and casing to loosen.

So how to distinguish the gold finger tape is good or bad?

On the basis of the original BOPP film, the gold finger tape is made into a rough surface after high-voltage corona, and then coated with glue, and then divided into small rolls with long strips. Therefore, the strength of the tape depends on the quality and thickness of the BOPP film. The BOPP film made of raw material particles has good brightness, strong flexibility and less impurity black spots. Generally, the tape made of this film is not mixed with toner shielding impurities, so the finished transparent tape is pure white.

The finished product of the gold finger tape is placed for about a week, and the tape below 100m is highly transparent. Typically, the film thickness is between 28 microns and 30 microns. However, since the strength of the BOPP film partially incorporated with recycled material is reduced, the thickness of the film is only increased. This kind of tape feels very thick, but the strength is very poor and the shelf life is very short. Placed for about half a year, there will be obvious aging, the surface will be more brittle, easy to break in use.

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