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A liquid pre-coated anti-loosening sealant for threaded fasteners

A technology for threaded fasteners and sealants, applied in the directions of adhesives, adhesive types, monocarboxylic acid ester copolymer adhesives, etc., can solve the problems of difficulty in controlling the spray amount and coating thickness of the anti-loose sealant. Achieve the effects of reduced energy consumption, high safety, and excellent weather resistance

Active Publication Date: 2016-06-29
烟台海利泰粘合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a liquid pre-coated anti-loosening sealant for threaded fasteners, which solves the problem that the spraying amount and coating thickness of the existing threaded fasteners anti-loosening sealant are difficult to control

Method used

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  • A liquid pre-coated anti-loosening sealant for threaded fasteners

Examples

Experimental program
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Effect test

Embodiment 1

[0031] 15 parts by weight of alcohol-soluble nylon was dissolved in 30 parts by weight of methanol at a temperature of 55°C, and stirred evenly; 12 parts by weight of acrylic resin was dissolved in 36.5 parts by weight of trichlorethylene at room temperature, and stirred evenly; Mix the above two solutions, add 5 parts by weight of glass fiber micropowder, 0.5 parts by weight of pigment and 1 part by weight of fumed silica, and stir evenly to obtain the anti-loose seal of the liquid pre-coated threaded fastener glue.

Embodiment 2

[0033] Add 15 parts by weight of alcohol-soluble nylon to 60 parts by weight of methanol at a temperature of 60°C to dissolve, and stir evenly; then add 15 parts by weight of polyvinyl acetate, and stir evenly; add 8.5 parts by weight of glass beads, 0.5 Stir the parts by weight of pigment and 1 part by weight of fumed silicon dioxide evenly to obtain the liquid pre-coated anti-loosening sealant for threaded fasteners.

Embodiment 3

[0035] Add 20 parts by weight of alcohol-soluble nylon to 60 parts by weight of methanol at a temperature of 60°C to dissolve, and stir evenly; then add 10 parts by weight of polyvinyl acetate, and stir evenly; add 7 parts by weight of glass fiber micropowder, 0.5 The pigment by weight and 2.5 parts by weight of fumed silicon dioxide are stirred evenly to obtain the liquid pre-coated anti-loosening sealant for threaded fasteners.

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Abstract

The invention provides a liquid precoat threaded fastener anti-loosing sealant and overcomes a problem that the spraying coating amount and the coating thickness of threaded fastener anti-loosing sealants at present are difficult to control. The liquid precoat threaded fastener anti-loosing sealant comprises following components by weight: 1-50% of alcohol-soluble nylon, 0-50% of acrylic resin, 0-50% of polyvinyl acetate, 0-10% of a filling material, 0-1% of a pigment, 0-5% of a viscosity thixotropic agent and 30-70% of a solvent. According to the liquid precoat threaded fastener anti-loosing sealant, improvements are made for a traditional melting coating method, a liquid nylon mixture with a certain viscosity is prepared, and the sealant can be conveniently adhered onto surfaces of the bolts and threads under normal states through coating, dropping, dipping, and other methods and plays roles of loosing prevention and sealing.

Description

technical field [0001] The invention relates to the technical field of anti-loosening and sealing of screw fasteners in a non-mechanical manner, in particular to a liquid pre-coated anti-loosening sealant for threaded fasteners. Background technique [0002] Bolts or screws can be said to be ubiquitous as a fastener, but they are in danger of loosening due to shock, vibration and other reasons. For threaded fasteners, the engineering community has been working on two aspects. One is to improve its bearing capacity; the other is to prevent loosening. Before the advent of chemical locking and sealing technology, people have used a variety of anti-loosening design solutions, such as stop washers, cotter pins, thread interference or interference deformation, and spring washers and use of internal damping nuts. These mechanical methods are all based on increasing parts and improving machining accuracy, resulting in an increase in cost. Moreover, it is still impossible to funda...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J177/02C09J133/08C09J133/10C09J131/04C09J11/04C09K3/10
Inventor 常发岗常发新
Owner 烟台海利泰粘合材料有限公司