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The thermal grade of polyurethane enameled wire is 130.155.180

Polyurethane enameled wire is a type of enameled wire with polyurethane paint. The thermal grade of polyurethane enameled wire is 130.155.180. Its biggest characteristic is its direct welding performance, good high-frequency resistance, easy coloring, and good moisture resistance. It is widely used in weak current electrical products such as precision instruments, precision coils, motors, instruments, and household appliances. The direct solderability of polyurethane enameled wire refers to the ability of the enameled wire coated with a paint film to undergo thermal decomposition into low relative molecular weight volatile substances at a certain temperature in a tin lined tank, causing the paint film to be damaged and tin to be applied to the winding wire. In this way, when the polyurethane coated wire needs joints, there is no need to remove the coating in advance. Its direct solderability simplifies the production process of the winding wire and effectively improves production efficiency.

Polyurethane enameled wire paint has received increasing attention due to its direct solderability, and in recent years, its market share has been continuously expanding, with good application prospects.

Polyacrylic acid paint is an important insulating paint for enameled wires, with excellent electrical insulation and direct solderability (i.e. the ability to solder directly without removing the paint film). It is widely used in industries such as color televisions, instruments, and computers with many solder joints. The development of science and technology has put forward higher requirements for polyurethane enameled wires. For example, in the localization project of color TV, the polyurethane enameled wire used for the deflection coil of color TV requires resistance to high voltage above 300 volts, softening breakdown temperature above 25 ℃, no salt water pinholes, acid resistance, alkali resistance, and aging resistance. At the same time, it is necessary to maintain the excellent direct welding performance of polyurethane enameled wires.