A method of vacuum impregnating paint for the plastic pipe of the oil quantity sensor of the fuel tank

A technology of oil quantity sensor and plastic pipe, which is applied in the field of dipping paint, can solve the problems of low manufacturing cost and so on

Active Publication Date: 2021-09-10
四川泛华航空仪表电器有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above technical problems, and to provide a method for vacuum impregnation of plastic pipes of fuel tank fuel level sensors. Pinholes, air bubbles, pits and other defects on the part substrate, thereby improving its overall mechanical strength, insulation strength and moisture-proof, mildew-proof performance

Method used

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  • A method of vacuum impregnating paint for the plastic pipe of the oil quantity sensor of the fuel tank

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Embodiment Construction

[0021] combined with figure 1 Shown, a kind of method for vacuum impregnating paint of plastic pipe of fuel tank fuel quantity sensor, comprises the following steps:

[0022] Step S1: Configure insulating varnish, mix the two components of polyurethane varnish evenly, and at the same time, mix it with cyclohexanone or polyurethane thinner according to the viscosity of the configuration, wait for 30 minutes to mature and use it after the bubbles disappear. And use it up within 8 hours.

[0023] After the insulating paint is prepared, it needs to be used within 8 hours. The container used for the paint preparation must be dry and clean; it is forbidden to contact with water, acid, alkali, alcohol, etc. during the paint preparation and immersion process; use cyclohexanone or X-10 polymer Urethane thinner to adjust the viscosity of the paint, do not use alcohol solvents as thinner; polyurethane thinner is X-10 polyurethane thinner.

[0024] Step S2: cleaning the paint dipping de...

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Abstract

The invention discloses a vacuum impregnation method for a plastic tube of an oil level sensor in a fuel tank, which belongs to the technical field of impregnation methods and includes the following steps: Step S3: testing the degree of vacuum, sealing the impregnation cylinder through a sealing cover, closing the impregnation cylinder and the After the paint inlet valve between the paint storage tanks, respectively open the air intake valve and the vacuum gauge valve at the upper end of the paint immersion cylinder, and then turn on the vacuum pump to evacuate the paint immersion cylinder for 1 to 2 minutes, so that the vacuum degree in the paint immersion cylinder is higher than ‑0.085 MPa, record the required time, close the vacuum gauge valve, open the paint inlet valve to connect the paint dipping cylinder with the paint storage tank to communicate with the outside; Step S4: Part dipping: pour the prepared and aged paint into the paint storage tank , close the paint inlet valve, and remove the sealing cover on the paint dipping cylinder. The invention has low cost, less consumption of insulating varnish, can improve the penetration ability and filling rate of insulating varnish, and can eliminate defects such as pinholes, air bubbles and pits on the base of plastic pipe parts, thereby improving its overall mechanical strength, insulation strength and Moisture-proof, mildew-proof performance.

Description

technical field [0001] The invention relates to the technical field of varnish dipping methods, in particular to a vacuum varnish dipping method for a plastic tube of an oil level sensor in a fuel tank. Background technique [0002] Vacuum impregnation mainly uses vacuum containers (varnish tanks) to hold workpieces to be treated and temporarily store insulating varnish, and then vacuumize them and perform vacuum impregnation treatment. Its principle is to place the workpiece to be processed in a vacuum container, remove the moisture, air and other volatile substances in the workpiece by vacuuming, and then fill the gap with insulating varnish. It can be used for insulation impregnation treatment of electrical coils such as micro-motors, transformers, power transformers, etc. It can improve the penetration ability of insulating varnish and increase the filling rate, thereby improving the overall mechanical strength, insulation strength, moisture-proof, and mildew-proof perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/18B05B15/55B05C3/02G01L21/00
CPCB05C3/02B05D1/18B05B15/55G01L21/00
Inventor 蒋应洪
Owner 四川泛华航空仪表电器有限公司
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