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Method for brushing ink lines on non-asbestos material sealing gasket with high sealing effect

A sealing effect and sealing gasket technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as leakage, achieve clear boundaries, imprints do not flow, and delay gelation performance

Pending Publication Date: 2022-03-15
长春蓝天密封技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for brushing ink lines on non-asbestos material sealing gaskets with high sealing effect, which solves the problem of sealing medium, pressure, flange thickness (flange deformation, surface roughness), bolts, etc. in the prior art. The size, bolt distance and other reasons, the length of time will cause the problem of leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method of brushing ink lines on non-asbestos material sealing gaskets with high sealing effect, including non-asbestos paper gaskets, metal gasket sealing ribs, printing silicone ink, width 1-5mm, and both sides of the gasket contacting the flange The parts are printed with silicone ink, and the thickness of one side is 0.05-0.20.

[0018] According to the above-mentioned embodiments, it can be known that the core of the present invention is to provide a silicone ink, which has good fluidity to ensure that the coating passes through the screen smoothly, and has certain thixotropy so that the imprint does not flow and the border Clear, maintain the desired thickness; unique delayed gelation performance, the viscosity does not change much in a long period of time, and the thinner imprint after missing printing can also be cured normally; low temperature resistance, oil resistance, can be used at -50 ~ Long-term use at a temperature of 180°C.

Embodiment 2

[0020] The thickness of non-asbestos gaskets and paper gaskets is 0.2-3mm, the thickness of non-metallic gaskets and metal gaskets is 0.15-1.0mm, and the metal gaskets are gaskets coated with fluorine rubber or nitrile rubber , the metal gasket is printed on one side, and it is printed on the sealing rib. The ink weight is matched by weight at 15°~35°under room temperature. Ink silica gel: curing agent=100: (8~15), silicone ink, can be passed (120-140°C) x 1 hour to accelerate curing. Accelerated curing by heating helps to improve the bonding strength of imprinting. It can be used for a long time at a temperature of -40-180°C. The silicone ink of the present invention needs to be coated on the surface of the pad first. Primer, after the surface is dry, print the ink on silica gel, then apply the surface coating agent after the surface is dry, and finally cure at 120°-140° for 1 hour.

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Abstract

The invention relates to the technical field of non-asbestos sealing gaskets, in particular to a method for brushing ink lines on a non-asbestos material sealing gasket with a high sealing effect, and solves the problem of leakage caused by sealing medium, pressure, flange thickness (flange deformation and surface roughness), bolt size, bolt distance and the like in the prior art. The invention discloses a method for brushing ink lines on a non-asbestos material sealing gasket with a high sealing effect. The method comprises the following steps: printing silica gel ink at a sealing rib of a non-asbestos paper gasket and a metal gasket with the width of 1-5mm, and printing silica gel ink at contact parts of two sides of the gasket and a flange. The silica gel ink disclosed by the invention has relatively good fluidity so as to ensure that a coating smoothly leaks through a screen plate, and also has certain thixotropy, so that imprint does not flow, the boundary is clear, and the required thickness is kept; due to the unique gelation delaying performance, the viscosity change is not large within a long time, and the thin imprint can be normally cured after through printing; the cable is low-temperature-resistant and oil-resistant, and can be used for a long time at the temperature of-50 to 180 DEG C.

Description

technical field [0001] The invention relates to the technical field of non-asbestos sealing gaskets, in particular to a method for brushing ink lines on non-asbestos material sealing gaskets with high sealing effect. Background technique [0002] At present, non-asbestos sealing gaskets are mainly used for sealing in industries such as aerospace, weaponry, petrochemical, refrigeration and air conditioning, metallurgical power, mining, automobile engines, motorcycle engines, and small general-purpose gasoline engines. [0003] However, due to the sealing medium, pressure, flange thickness (flange deformation, surface roughness), bolt size, bolt distance, etc., the time will cause leakage. Contents of the invention [0004] The purpose of the present invention is to provide a method for brushing ink lines on non-asbestos material sealing gaskets with high sealing effect, which solves the problem of sealing medium, pressure, flange thickness (flange deformation, surface rough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/00
CPCF16J15/00
Inventor 李牟申强郑英利汪洪艳姚丹邢树江
Owner 长春蓝天密封技术开发有限公司