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Anticorrosion method for improving anticorrosion effect and fixing rigid polyvinyl chloride plate through fusible interlining

A technology of rigid PVC and PVC sheets, applied in chemical instruments and methods, layered products, construction, etc., can solve problems such as large influence, deformation, weld leakage, etc., and achieve the effect of high strength

Inactive Publication Date: 2015-11-18
YUNNAN CHIHONG ZINC & GERMANIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several methods, and the problems are: steel frame lining, which should withstand different pressures and will be deformed; bolts to fix the lining, weld leakage and bolt corrosion defects; paste lining, which is greatly affected by the adhesive, and the paste quality is unstable

Method used

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  • Anticorrosion method for improving anticorrosion effect and fixing rigid polyvinyl chloride plate through fusible interlining
  • Anticorrosion method for improving anticorrosion effect and fixing rigid polyvinyl chloride plate through fusible interlining
  • Anticorrosion method for improving anticorrosion effect and fixing rigid polyvinyl chloride plate through fusible interlining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]The hard polyvinyl chloride plate used in a mixing tank is 25mm thick, and the mesh-shaped holes above it are 10mm in diameter, 300mm in diameter, and 40mm thick in resin mortar; remove the original anti-corrosion layer; pickling neutralization: use concentration < 10% Wash the original base layer with sodium hydroxide solution, neutralize the acid-containing electrolyte in the base layer with sodium hydroxide solution, and then rinse with water for two times; drying treatment: bake with a gasoline blowtorch until the base layer is dry, and do a drying experiment for the base layer. until there is no moisture in the base layer. Base-level sandblasting cleaning treatment: use a high-pressure air compressor to spray quartz sand on the base-level, and thoroughly clean the surface dirt and residual crystals. Base repair sand leveling, using aluminate cement + coarse sand, the ratio is 1:2.5, repairing mortar parts, blowtorch secondary drying treatment; grinder grinding: the ...

Embodiment 2

[0025] In another mixing pool, a hard polyvinyl chloride plate with a thickness of 10mm is used, and the mesh-shaped holes above it are drilled with a diameter of 6mm, an aperture spacing of 400mm, and a resin mortar thickness of 20mm; the original anti-corrosion layer is removed, and pickling and neutralization: use concentration < 10% Sodium hydroxide solution washes the original base, neutralizes the acid-containing electrolyte in the base with sodium hydroxide solution, and then rinses with water for two times; drying treatment, baking with a gasoline blowtorch until the base is dry, and doing the drying experiment of the base. Until there is no moisture in the base layer; base layer sandblasting cleaning treatment: use a high-pressure air compressor to spray quartz sand on the base layer, and thoroughly clean the surface dirt and residual crystals. Base repair sand leveling, using aluminate cement + coarse sand, ratio 1:2.5. Repairing of mortar parts, secondary drying of ...

Embodiment 3

[0027] In the third mixing tank, a hard polyvinyl chloride plate with a thickness of 2mm is used, and the mesh-shaped holes above it are drilled with a diameter of 3mm, an aperture spacing of 500mm, and a resin mortar thickness of 10mm; remove the original anti-corrosion layer, and pickling and neutralization: use a concentration of <10% Wash the original base layer with sodium hydroxide solution, neutralize the acid-containing electrolyte and sodium hydroxide solution in the base layer, and then rinse it with water for two times; drying treatment: bake with a gasoline blowtorch until the base layer is dry, and do the drying experiment of the base layer . until there is no moisture in the base layer. Base-level sandblasting cleaning treatment: use a high-pressure air compressor to spray quartz sand on the base-level, and thoroughly clean the surface dirt and residual crystals. Base repair sand leveling, using aluminate cement + coarse sand, ratio 1:2.5, repairing mortar parts...

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Abstract

The invention relates to an anticorrosion method for improving anticorrosion effect and fixing a rigid polyvinyl chloride plate through fusible interlining and belongs to the technical field of anticorrosion. an anticorrosion structure is composed of three layers, namely an isolation layer, resin mortar and the rigid polyvinyl chloride plate; the method comprises the steps of conducting treatment on a substrate, arranging the isolation layer on the surface of the substrate through fusible interlining, fixing the rigid polyvinyl chloride plate to the resin mortar through fusible interlining, wherein the thickness of the rigid polyvinyl chloride plate used for the fusible interlining is 2-25 mm, and drilling holes in the upper portion of the rigid polyvinyl chloride plate, wherein the drilling diameter is 3-10 mm and the drilling interval is 300-500 mm; before construction, covering the drilled holes with scotch tape in a pasted mode, and when fabricating and installing the rigid polyvinyl chloride plate, adjusting the position and distance to reach the requirements, and fixing the rigid polyvinyl chloride plate; after the rigid polyvinyl chloride plate is installed ready, pouring the resin mortar in the holes, using a wooden mallet or a vibrator for providing assistance, and making gaps be filled with the resin mortar slowly; judging the pouring height and filling condition of the resin mortar, till all the holes are filled through pouring completely; after the resin mortar is cured, combining the contact surface with the polyvinyl chloride plate into a whole by connecting the contact surface with the filling holes in an inserted mode, and achieving the purpose of fixing the polyvinyl chloride plate.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion, and in particular relates to an anti-corrosion method for improving the anti-corrosion effect and bonding and fixing a rigid polyvinyl chloride board. Background technique [0002] At present, FRP and brick anticorrosion are relatively common in chemical, petroleum, metallurgical and other industries. Regardless of whether FRP is used as the lining alone or FRP is used as the isolation layer, the anti-corrosion scheme of adding bricks on it, due to a large number of manual operations, has defects such as resin infiltration enhancement, insufficient glass fiber, pinholes, bulging, shrinkage cracks, etc., resulting in anti-corrosion inside. The service life of the lining varies, and the quality is unstable. Rigid PVC board has excellent chemical stability, corrosion resistance, high hardness and strength, can be bonded, welded, easy to process, and can replace some stainless steel and other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H7/02B32B27/04B32B9/04B32B27/30B32B17/04
Inventor 刘堂辉张良红杨玉明杨大军李本云
Owner YUNNAN CHIHONG ZINC & GERMANIUM
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