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Hole sealing treatment agent, fastener, bolt and manufacturing method thereof

A technology for fasteners and treatment agents, applied to threaded fasteners, bolts, chemical instruments and methods, etc., can solve the problems of high-strength bolts and nuts with short service life

Inactive Publication Date: 2015-08-12
NEXCO西日本イノベーションズ株式会社 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such high-strength bolts and nuts do not form a high-corrosion-resistant film like the main body of steel structures. Therefore, compared with the main body of steel structures, high-strength bolts and nuts have a shorter service life. years to maintain

Method used

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  • Hole sealing treatment agent, fastener, bolt and manufacturing method thereof
  • Hole sealing treatment agent, fastener, bolt and manufacturing method thereof
  • Hole sealing treatment agent, fastener, bolt and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Axial Force Confirmation Test

[0049] Axial force confirmation tests were performed with the fasteners in the above embodiments. The test was carried out by measuring the tightening torque value and axial force using bolts sealed with a sealing agent obtained by varying the mixing ratio of paraffin to the resin-based sealing agent. Figure 4 ~ Figure 7 The tightness of bolts sealed with acrylic siloxane resin (Hypon AZ Siloxane: manufactured by Nippon Pento Co., Ltd.) mixed with 1.0% by mass, 2.0% by mass, 3.0% by mass, and 5.0% by mass of paraffin wax are shown, respectively. Fixed torque values ​​and the resulting axial force measurements. Figure 8 The measurement results of the tightening torque value and the obtained axial force of bolts sealed with a silicone varnish mixed with 10.0% by mass of paraffin wax are shown.

[0050] Such as Figure 4 ~ Figure 8 As shown, when using bolts treated with a sealing agent mixed with paraffin, the target axial force can be...

Embodiment 2

[0052] Adhesion test of coating film and sealing treatment agent

[0053] Adhesion tests were performed between the sealing agent and the coating film with different wax contents. The test was carried out in accordance with JIS K5600-5-6 (General Test Methods for Paint Part 5: Mechanical Properties of Coating Films, Section 6 Adhesion (Grid Test Method)).

[0054] The test body is sprayed with Al-Mg alloy with a thickness of 100μm, and the thickness is 160g / m 2 Acrylic siloxane resin (Hipon AZ siloxane: manufactured by Nippon Paint Co., Ltd.) to which 1.0 mass %, 2.0 mass %, 5.0 mass %, 10.0 mass %, and 15.0 mass % of wax were added was applied and dried. at 140g / m 2 Recoat polyurethane resin paint (Hipon AZ Shi-la-Shi Shang げ agent: manufactured by Nippon Piinto Co., Ltd.), and after it dries completely, conduct a grid method test. In the grid method test, 6 vertical and horizontal cuts were formed with a cutter at a parallel interval of 1 mm, and a tensile test was perfor...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To obtain an axial force required when a bolt having a sprayed coating for rust prevention formed thereon is tightened with predetermined tightening torque. SOLUTION: A fastener is used for fastening a body 100 to be fastened, the body having sprayed coatings 101b, 102b and 103b for rust prevention formed thereon. The fastener includes: a bolt 1 which has a sprayed coating 10 for rust prevention formed on the entire surface including a head 1a and a thread 1c while at least the thread is subjected to sealing treatment with a sealing agent containing 1-10 mass% of wax; a nut 2 which is tightened to the thread 1c of the bolt 1 while sandwiching the body 100 to be tightened and has the entire surface formed with a sprayed coating 20 for rust prevention, the entire surface excluding the thread 1c and a contact face (bearing surface 2b) on a side of the body 100 to be tightened; and washers 3 and 4 which are arranged between the head 1a of the bolt 1 or the nut 2 and the body 100 to be tightened and has the entire surface formed with sprayed coatings 30 and 40 for rust prevention, the entire surface excluding contact surfaces 3a and 4a on a side of the body 100 to be tightened. COPYRIGHT: (C)2012,JPO&INPIT

Description

technical field [0001] The present invention relates to a sealing treatment agent for bolts formed with a spray coating film for antirust, and for example, a spray coating agent based on Japanese Industrial Standard JIS H 8300: 2005 "spray coating of zinc, aluminum and their alloys" (sublead, aluminium and び それらのAlloy のSolution Spray) for the purpose of preventing the corrosion of steel, zinc, aluminum and their alloy spray coating aluminum, zinc aluminum alloy, aluminum magnesium alloy and other anti-rust spray coating fastened body Fasteners, bolts and methods of manufacture used in fastening. Background technique [0002] As a corrosion countermeasure for steel structures such as steel girders of roads and bridges, a highly corrosion-resistant film is formed by spraying a highly corrosion-resistant alloy on the surface of the steel structure in a factory. Moreover, the structure of this kind of steel structure needs to be connected on site, and most of the sites use splic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/10C08L83/04C08L91/06F16B33/06
CPCF16B5/02F16B33/008F16B33/06
Inventor 杦本正信村山康雄山田谦一山田康利
Owner NEXCO西日本イノベーションズ株式会社