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Thermal spraying technology capable of prolonging service life of bridge or steel structure

A steel structure and thermal spraying technology, which is applied in the field of thermal spraying technology, can solve problems such as swelling, and achieve the effect of strong coating durability, low porosity, and dense coating structure

Pending Publication Date: 2022-07-05
苏州盈孚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the anti-corrosion thermal spraying treatment of bridges, how to deal with the narrow areas that are difficult to spray, such as the distance between the steel member and the lower surface of the lower flange of the main girder, and the bridge seat surface of the substructure are all small , it is often necessary to thermal spray the narrow area again after spraying the surrounding area, however, when Al-Mg alloy sprayed parts are applied to the coated steel structure, there will be overlap between the existing coating and the sprayed coating, In these overlapping parts, the sprayed film under the coating film deteriorates earlier due to banding scratches, causing significant swelling, so it is necessary to protect the thermal sprayed coating and coating

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  • Thermal spraying technology capable of prolonging service life of bridge or steel structure

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must hav...

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Abstract

The invention discloses a thermal spraying technology capable of prolonging the service life of a bridge or a steel structure. The thermal spraying technology comprises the following steps of workpiece surface treatment, wherein the surface of a base body is cleaned; spraying a working layer: melting a spraying material into a liquid or molten state, refining the liquid or molten material into particles, spraying the working layer by adopting an electric arc, enabling the softened or molten fine particles to fly forwards, enabling the particles to collide, deform, solidify and accumulate on the surface of the base material, and preparing the aluminum-based amorphous nanocrystalline composite coating on the surface of the magnesium alloy; and coating hole sealing: epoxy resin is selected as a sealing material, the invention belongs to the technical field of corrosion prevention, and particularly relates to a thermal spraying technology capable of prolonging the service life of a bridge or a steel structure. Corrosion resistance and corrosion resistance of an overlapping portion other than the single-layer coating film of the thermal spray coating layer and the coating film are inspected.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion, and specifically refers to a thermal spraying technology which can prolong the service life of bridges or steel structures. Background technique [0002] The strong recommendation of steel structures in national policies has rapidly increased the proportion of steel structures in buildings, driving the output of infrastructure construction, and overseas orders for steel structure buildings have risen sharply; Structural industry development. [0003] The rapid development of steel structures has also led to the prosperity of the steel structure anti-corrosion market. In recent years, under the environment of large-scale infrastructure construction in China, more and more steel structures have been built, such as steel bridges. Steel structure bridges have the characteristics of large span, strong bearing capacity, short construction period and long service life, and are widely used by co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/131C23C4/02C23C4/18C23C4/08
CPCC23C4/131C23C4/02C23C4/18C23C4/08
Inventor 杜锦轩
Owner 苏州盈孚新材料科技有限公司
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