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Hole sealing agent for thermal spraying coating and preparation method thereof

A technology of sealing agent and thermal spraying, which is applied in the direction of coating, metal material coating process, molten spraying, etc., and can solve the problems of increasing zinc consumption in the galvanizing production line, short service life of sinking rolls, and inconvenient production and operation. , to achieve good application prospects, high hardness, and reduce maintenance costs

Pending Publication Date: 2019-09-13
SHANGHAI JUSN SURFACE TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sealing agent commonly used for sinking rolls in the galvanizing production line has good sealing and corrosion resistance, but poor wear resistance, resulting in a generally short working life of sinking rolls
Frequent replacement or maintenance of sinking rolls reduces the operating rate, increases labor intensity, brings a lot of inconvenience to production and operation, and also greatly increases the consumption of zinc in the galvanizing production line

Method used

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  • Hole sealing agent for thermal spraying coating and preparation method thereof
  • Hole sealing agent for thermal spraying coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 8

[0036] Use the thermal spray coating sealing agent of embodiment 1: brush the thermal spray coating sealing agent on the sample, brush once, and dry at room temperature for 12 hours; put the sample after room temperature drying into a box-type resistance furnace Heating and curing, the heating conditions are 100°C for 3h, 150°C for 1h, 200°C for 1h, 250°C for 0.5h, and 300°C for 3h; after heating and curing, turn off the power and stop heating, and wait for the sample to cool to room temperature with the furnace Then take it out.

Embodiment 9

[0038] Use the thermal spray coating sealing agent of embodiment 2: brush the thermal spray coating sealing agent on the sample, brush once, and dry at room temperature for 12 hours; put the sample after room temperature drying into a box-type resistance furnace Heating and curing, the heating conditions are 100°C for 5h, 150°C for 1h, 200°C for 1h, 250°C for 0.5h, 300°C for 0.5h, 400°C for 0.5h, and 450°C for 2h; The power supply stops heating, and the sample is taken out after cooling to room temperature with the furnace.

Embodiment 10

[0040] Use the thermal spray coating sealing agent of embodiment 3: dip-coat the sample with the thermal spray coating sealing agent for 6 hours, and dry at room temperature for 24 hours; put the sample after room temperature drying into a box-type resistance furnace for heating and curing, and the heating conditions Insulate for 3.5 hours at 100°C, 1 hour at 150°C, 1 hour at 200°C, 0.5 hours at 250°C, 0.5 hours at 300°C, and 0.5 hours at 400°C; Let cool to room temperature and remove.

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Abstract

The invention discloses a hole sealing agent for a thermal spraying coating. The hole sealing agent is characterized by comprising the following components of, in percentage by mass, 0.1%-1% of graphene and 99%-99.9% of a mixed solution containing boron nitride and aluminum metaphosphate. The thermal spraying coating treated by using the hole sealing agent disclosed by the invention has higher hardness, better corrosion resistance and wear resistance, so that the service life of the thermal spraying coating is prolonged; and moreover, the preparation method of the hole sealing agent for the thermal spraying coating is simple to operate, the maintenance cost is reduced, and the method has a good application prospect.

Description

technical field [0001] The invention relates to a thermal spray coating sealing agent and a preparation method thereof. Background technique [0002] Thermal spraying is a method that uses a heat source to heat the sprayed material to a molten or semi-molten state, and sprays and deposits it on the surface of the pretreated substrate at a certain speed to form a coating. The thermal spraying coating is a layer formed by interlacing tiny particles. Like organizational structure, so that the thermal spray coating forms a porous structure, and the coating needs to be sealed. For example, for the galvanizing production line, the quality of the sealing treatment of the sinking roll has a critical impact on the quality of the galvanized sheet, so it involves the selection and use of the sealing agent. At present, the sealing agent commonly used for sinking rolls in the galvanizing production line has good sealing and corrosion resistance, but poor wear resistance, resulting in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/18
CPCC23C4/18
Inventor 王建康
Owner SHANGHAI JUSN SURFACE TECH ENG
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