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Method for impregnating graphite electrode by using ultrasonic principles

A technology for impregnating graphite and graphite electrodes, applied in the field of impregnation of graphite electrodes, can solve the problems of reduced service life and safety, failure to meet the requirements of impregnation depth, uneven distribution of impregnating agents, etc., to prolong the service life and improve the impregnation permeability. , the effect of increasing the weight gain rate

Inactive Publication Date: 2013-03-06
青岛鸿源换热器有限公司
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Problems solved by technology

[0002] At present, the traditional artificial graphite impregnation process in China is to use an impregnation kettle to vacuumize, pressurize, impregnate, cool, and dry the artificial graphite electrode. The main disadvantage is that the impregnating agent is unevenly distributed in the impregnation kettle and has poor adhesion. , It is easily affected by air bubble resistance and cannot meet the requirement of impregnation depth, which leads to the reduction of service life and safety of the equipment made by it

Method used

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Embodiment Construction

[0013] Graphite electrode impregnation method of the present invention comprises the steps:

[0014] (1) Clean the processed graphite electrode, put it into the impregnation container after drying;

[0015] (2) Vacuumize and maintain the impregnation container, and the vacuum degree is above 750mmHg;

[0016] (3) Phenolic resin is injected into the dipping container, and the resin liquid level is 150mm higher than the graphite electrode;

[0017] (4) Keep the constant temperature at 37°C, start the compressor and ultrasonic device and keep it, pressurize the compressor to 5-6KG / cm 2 , the holding time is 2-4 hours;

[0018] (5) Take out the resin to obtain the impregnated graphite electrode.

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Abstract

The invention relates to a method for impregnating a graphite electrode, particularly a method for impregnating a graphite electrode by using ultrasonic principles. The method comprises the following steps: (1) cleaning a processed graphite electrode, drying, and putting the graphite electrode into an impregnating container; (2) vacuumizing the impregnating container, and keeping the vacuum state; (3) injecting resin into the impregnating container, wherein the resin level is higher than the graphite electrode; (4) while keeping the temperature constant, starting a compressor and an ultrasonic device, and keeping the state; and (5) taking out the resin to obtain the impregnated graphite electrode. The impregnated artificial graphite electrode has the advantages of uniform distribution of various resins (including phenol formaldehyde resin, furan resin, vinyl ester resin, polytetrafluoroethylene, other mixed resins and the like), strong surface adhesion, greater impregnating depth, higher gain rate of the impregnated part, favorable heat exchange effect, high strength and high corrosion resistance, and effectively prolongs the service life of equipment.

Description

technical field [0001] The invention relates to a method for impregnating graphite electrodes. Background technique [0002] At present, the traditional artificial graphite impregnation process in China is to use an impregnation kettle to vacuumize, pressurize, impregnate, cool, and dry the artificial graphite electrode. The main disadvantage is that the impregnating agent is unevenly distributed in the impregnation kettle and has poor adhesion. , It is easily affected by air bubble resistance and cannot meet the requirement of impregnation depth, resulting in a reduction in the service life and safety of the equipment made by it. Contents of the invention [0003] The technical effects of the present invention can overcome the above-mentioned defects, and provide a method for impregnating graphite electrodes using the ultrasonic principle, which greatly improves the service life of the graphite electrodes. [0004] To achieve the above object, the present invention adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/48
Inventor 殷志军
Owner 青岛鸿源换热器有限公司
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