Surface lubricant for enamelled wires

Abstract

The invention discloses a surface lubricant for enamelled wires. The surface lubricant is composed of the following raw materials (by weight): 1-2% of paraffin, 0.5-2.0% of methylsilicone oil, 3-5% of propanol, 1-2% of natural resin, 3-8% of cyclohexane oxide and 80-90% of No. 200 gasoline. According to the invention, content of paraffin is reduced, natural resin and methylsilicone oil are increased, and lubricating property is raised. In addition, the surface lubricant can be retained along with paraffin on the surface of an enamelled wire for a long time and is not easy to naturally evaporate. Thus, retention time of the lubricating property is long, and the effect is good. Paraffin precipitation is thoroughly prevented. The product is applicable to various enamelled wires with the range of phi 0.10-3.00, and high-speed wire wrapping effect is good. Users report that wire-breaking and inter-turn short circuit rate is low; coil forming is good and easy for inserting line; utilization rate is high; cost is relatively reduced; and the surface lubricant is clean, sanitary and free of spots.

Description

technical field [0001] The invention relates to a lubricant, in particular to a lubricant for the winding or unwinding surface of an enameled wire. Background technique [0002] Traditional enameled wire surface lubricants are usually paraffin wax lubricants, which are made by heating and dissolving pure solid paraffin wax and mixing it with a certain amount of solvent. The solvent is usually pure No. 120 gasoline or No. 200 gasoline. The solubility is poor, so there are certain defects, such as wax is easy to precipitate in winter at low temperature, precipitation occurs at the bottom of the oil tank of the equipment, a large amount of wax precipitates on the oil felt, and the wire guide wheel often sticks to wax, resulting in uneven coating of lubricating oil on the surface of the enameled wire unit , produce "white spots" (wax deposits), during the winding process for users who use enameled wires, problems such as broken wires, hard wires, loose wire packs, dryness, swell...

AI Technical Summary

Problems solved by technology

[0002] Traditional enameled wire surface lubricants are usually paraffin wax lubricants, which are made by heating and dissolving pure solid paraffin wax and mixing it with a certain amount of solvent. The solvent is usually pure No. 120 gasoline or No. 200 gasoline. The solubility is poor, so there are certain defects, such as wax is easy to precipitate in winter at low temperature, precipitation occurs at the bottom of the oil tank of the equipment, a large amount of wax precipitates on the oil felt, and the wire guide wheel often sticks to wax, resulting in uneven coating of lubricating oil on the surface of the enameled wire unit , resulting in "white spots" (wax deposits), during the winding process for users who use enameled wires, there are problems such as broken wires, hard wires, loose wire packs, dryness, swelling, and polluting the working environment.

[0003] The invention with application number 200910145084.7 discloses a lubricant for the surface of enameled wire, which uses 3-4% of paraffin wax, 2-3% of yellow wax, 1-2% of industrial alcohol, 1-2% of xylene, and 30-50% of cyclohexane , No. 120 gasoline 40-60%, claiming low cost of use, high lubricity and can effectively prevent the weathering and precipitation of wax powder, but its wax content is high, and industrial alcohol and xylene are volatile, and cannot be retained on the enameled wire with paraffin for a long time Surface, so the lubrication effect is not good, especially for the enameled wire below φ3.00, the lubrication effect is poor