Hot-compress dip-coating insulation method of copper bar

A technology of hot compress and dip coating, which is applied in the field of copper bar insulation and copper bar hot dip coating insulation, which can solve the problems of high labor intensity and unguaranteed quality of copper bar insulation, and achieve labor intensity reduction, stable and reliable product quality, and high production efficiency. high effect

Inactive Publication Date: 2009-11-18
YONGJI XINSHISU ELECTRIC EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects and deficiencies existing in the existing copper bar insulation methods, specifically the problems of high labo

Method used

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  • Hot-compress dip-coating insulation method of copper bar
  • Hot-compress dip-coating insulation method of copper bar

Examples

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Example Embodiment

[0012] Copper bar hot dip coating insulation method, this method is realized by the following steps: a. Clean the copper bar, then protect and wrap the electrical contact surface of the copper bar; b. Put the copper bar at a temperature of 170°C (or 175 ℃, or 178℃, or 182℃, or 188℃, or 190℃) and keep it at this temperature for 20 minutes; c. Put the preheated copper bar in the epoxy encapsulant fluidized In the bed, apply epoxy encapsulating material to the surface of the copper bar, and then quickly shake the surface of the copper bar with floating powder; d. Protect and remove the electrical contact surface of the copper bar after the heat application and trim its end; e. The temperature of the copper bar is Cure at 140°C (or 142°C, or 145°C, or 148°C, or 149°C, or 150°C) for 30 minutes and then dry naturally. When the copper bar is preheated, the copper bar with a thickness of 5mm or less is preheated at a temperature of 170℃ (or 172℃, or 175℃, or 176℃, or 178℃, or 179℃), and t...

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Abstract

The invention relates to an insulation method of copper bars, in particular to a hot-compress dip-coating insulation method of copper bar, solving the defect and insufficiency of the existing insulation method of copper bars. The hot-compress dip-coating insulation method comprises the following steps: 1. a copper bar is cleaned, and the electric interface of the copper bar is protected and bound up; 2. the copper bar is preheated at the temperature of 170 to 190 DEG C, and kept for 20 minutes at the temperature of 170 to 190 DEG C; 3. the preheated copper bar is put in an epoxy encapsulating material fluidized bed, the surface of the copper bar is treated with hot pack by epoxy encapsulating material, and then dusting powder on the surface of the copper bar is quickly twittered; 4. the electric interface of the copper bar, which is treated with hot pack, is protected and eliminated, and the end of the electric interface is trimmed; and 5. at the temperature of 140 to 150 DEG C, the copper bar is solidified for 30 minutes, and then the solidified copper bar is dried. The invention improves the insulativity, the chemical resistance, the weather fastness and the like of the copper bar, lightens labor intensity, saves cost, improves the service life of the copper bar, and solves the inextricable problems of the existing insulation lapping and heat shrinking of tubing.

Description

technical field [0001] The invention relates to an insulation method, in particular to a copper bar insulation method, in particular to a copper bar hot-coating and dip-coating insulation method. Background technique [0002] Various types of insulated copper bars are widely used conductive equipment on locomotives. At present, the insulation treatment methods of copper bars are mainly divided into two methods: wrapping insulation and heat-shrinkable tube packaging. Wrapping insulation first wraps two layers of polyimide film half-fold in the insulation area, half-folds two layers with silicone rubber self-adhesive tape, half-folds one layer with glass ribbon, and then half-folds polyimide film Both ends are half-folded with silicone rubber self-adhesive tape, and finally the wrapped copper bars are prebaked (temperature 110-130°C, time 120 minutes), cured (temperature: 150-155°C, time 7- 8 hours), painting (use a 1.5-inch brush to brush 9150 insulating paint 2-3 times on t...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/16H01B13/30
Inventor 苏斌宋进民张平李波
Owner YONGJI XINSHISU ELECTRIC EQUIP
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