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Anti-friction treatment process of joint surface of steel structure after galvanizing

A treatment process and steel structure technology, applied in the field of anti-friction treatment process of galvanized steel structure, can solve the problems of anti-corrosion damage of steel structure, reduction of service life and anti-corrosion ability of steel structure, etc., to increase friction coefficient and improve anti-corrosion ability. Atmospheric corrosion performance, good quality effect

Active Publication Date: 2019-08-30
宜兴大平杆塔制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method can make the friction coefficient of the joint parts of the steel structure galvanized products meet the requirements, it also brings damage to the corrosion resistance of the steel structure.
Generally, the galvanized layer of the steel structure after shot blasting can only reach below 60um, which greatly reduces the service life and corrosion resistance of the steel structure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The anti-friction treatment process of the connecting surface of the steel structure after galvanizing comprises the following steps,

[0035] (1) Galvanized treatment:

[0036] Step 1: Degrease the connecting plate workpiece, add 78kg of sodium hydroxide, 33kg of sodium silicate, and 40kg of trisodium phosphate to each cubic water. 25 minutes;

[0037] The second step: the workpiece is dipped in the plating aid, put the workpiece into the pressure vacuum tank, the vacuum pressure is 0.17Mpa, and then the negative pressure is sucked into the dipping aid, the dipping aid is 12mm higher than the product, continue to vacuum for 20 minutes, and then Slowly release the pressure to normal pressure, then soak for 6 minutes, then take out the product and put it on the drier to shake off the impregnating solution. The immersion aid uses a mixed liquid of 21% ammonium chloride and 2.7% zinc chloride. The temperature was kept at 69°C for 3 minutes;

[0038] The third step: dryi...

Embodiment 2

[0051] The anti-friction treatment process of the connecting surface of the steel structure after galvanizing comprises the following steps,

[0052] (1) Galvanized treatment:

[0053] Step 1: Degrease the connecting plate workpiece, add 87kg of sodium hydroxide, 40kg of sodium silicate, and 52kg of trisodium phosphate to each cubic water. 37 minutes;

[0054] The second step: the workpiece is dipped in the plating aid, put the workpiece into the pressure vacuum tank, the vacuum pressure is 0.26Mpa, and then suck the dipping aid in negative pressure, the dipping aid is 14mm higher than the product, continue to vacuum for 22 minutes, and then Slowly release the pressure to normal pressure, then soak for 6 minutes, then take the product out and put it on the drier to shake off the impregnating solution, wherein the immersion aid uses a mixed liquid of 23% ammonium chloride and 3.1% zinc chloride, The temperature is kept at 72°C for 4 minutes;

[0055] The third step: drying a...

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Abstract

The invention relates to an anti-friction processing process for a connection face after galvanization of a steel structure. The process comprises the steps of galvanization processing, preparation ofanti-friction processing agents, polishing of a connection beam and a connection board of the galvanized steel structure, and transverse brushing and longitudinal brushing of the steel portion needing to be brushed. A zinc layer on the surface of the steel is not damaged, and the friction coefficient is increased at the same time.

Description

technical field [0001] The invention relates to an anti-friction treatment process for a steel structure, in particular to an anti-friction treatment process for a galvanized steel structure. Background technique [0002] In today's society, there are many projects using steel structure materials in the construction of thermal power plants or in the construction of thermal power plants. However, in order to increase the service life of steel structures, it is necessary to carry out anti-corrosion treatment on steel structures. At present, the anticorrosion of steel in the world adopts hot-dip galvanizing. After the steel structure products are hot-dip galvanized, the connection parts of the steel structure steel beams are connected by bolts. The friction surface of the surface will be greatly reduced, so that the connection parts of the steel structure will loosen with the increase of time and load, and eventually there will be safety hazards. [0003] General metal surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/02C23C2/06C23C2/26C23C22/46C23C28/00C23G1/19
Inventor 方士君袁平王富强
Owner 宜兴大平杆塔制造有限公司
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