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Fireproof paint construction process of indoor thin type steel structure

A technology of fire retardant coating and construction technology, which can be used in coatings, devices for coating liquid on surfaces, and surface pretreatment. Effect

Inactive Publication Date: 2016-05-25
ANHUI WEIHONG STEEL STRUCTURE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface materials of the existing indoor steel structures are mostly simply painted, and the steel structures painted with fire-resistant coatings and the surface coatings cannot be well bonded together, and the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] An indoor thin steel structure fireproof coating construction process, including the following steps:

[0013] 1. Pretreatment and cleaning of the surface of the steel structure: the dust and oil stains on the surface of the steel structure are removed, and the rust on the surface of the steel structure is completely removed. The purpose is to prevent the steel structure from rusting and prolong the service life. The coating has a good bonding force, which improves the protective performance of the entire coating.

[0014] 2. Anti-rust primer coating: Use spraying method to evenly apply anti-rust primer on the surface of steel structure, first apply a layer of alkyd red lead anti-rust primer, and then apply the second layer 10 hours after finishing painting Alkyd red lead anti-rust primer, the second layer of alkyd red lead anti-rust primer is sprayed with coarse aggregate of quartz sand before curing, and the thickness of the anti-rust primer is between 120μm.

[0015] 3. Ap...

Embodiment 2

[0017] An indoor thin steel structure fireproof coating construction process, including the following steps:

[0018] 1. Pretreatment and cleaning of the surface of the steel structure: the dust and oil stains on the surface of the steel structure are removed, and the rust on the surface of the steel structure is completely removed. The purpose is to prevent the steel structure from rusting and prolong the service life. The coating has a good bonding force, which improves the protective performance of the entire coating.

[0019] 2. Anti-rust primer coating: Use spraying method to evenly apply anti-rust primer on the surface of steel structure, first apply a layer of alkyd red lead anti-rust primer, and then apply the second layer 10 hours after finishing painting For the alkyd red lead anti-rust primer, the second layer of alkyd red lead anti-rust primer is sprayed with coarse aggregate of quartz sand before curing. The thickness of the anti-rust primer is between 80 μm.

[0020] 3...

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PUM

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Abstract

The invention discloses a fireproof paint construction process of an indoor thin type steel structure. The process includes the following steps of conducting preprocessing and cleaning on the surface of the steel structure; evenly coating the surface of the steel structure with anti-corrosive primer through a spraying method, wherein the surface of the steel structure is coated with a layer of alcohol acid red lead anti-corrosive primer first and is then coated with a second layer of alcohol acid red lead anti-corrosive primer 10 hours after coating is completed, and quartz sand coarse aggregate is sprayed before the second layer of alcohol acid red lead anti-corrosive primer is solidified; selecting ultrathin expansion type fireproof paint, sufficiently and evenly stirring the paint before construction, coating steel members through a high-pressure spray gun, and coating the steel members for the second time 24 hours after the first time of spraying is conducted and the surface is dried. The process is high in operability, the bonding strength of the anti-corrosive primer on the surface of the steel structure and the fireproof paint is high, the fireproof coating expands to form a fire-resistant thermal insulation barrier during fire disasters, the heated speed of the steel structure is delayed, it is avoided that the temperature of the steel members rapidly rises, and therefore the fire-resistant time limit of the steel structure is prolonged, and the steel structure is well protected.

Description

Technical field [0001] The invention belongs to the technical field of paint construction, in particular to a construction process of an indoor thin steel structure fireproof paint. Background technique [0002] As the main form of modern buildings, steel structure has the advantages of light weight, high strength, good seismic performance, short construction period, high degree of building industrialization, and large space utilization rate at room temperature. However, the poor fire resistance of steel structure buildings is also very obvious, because although steel is a non-combustible material, it is a good conductor of heat and easily conducts heat. After the temperature of the steel exceeds 300 degrees, the yield point and ultimate strength decrease significantly, and the strength is almost zero when it reaches 600 degrees. In the event of a fire, the unprotected steel structure will only take 15 minutes to increase its temperature to more than 540 degrees, causing the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/00
CPCB05D7/14B05D3/002B05D7/58B05D2202/10
Inventor 曹雁冰
Owner ANHUI WEIHONG STEEL STRUCTURE GRP