Device and method for testing high-temperature erosion resistance, corrosion resistance and adhesion characteristics of coating material

Abstract

The invention relates to a multifunctional device for testing high-temperature erosion resistance, corrosion resistance and adhesion characteristics of a coating material. The multifunctional device comprises a high-temperature frit furnace, a high-temperature electric furnace, a temperature-controllable sample bracket, a pipeline, a centrifugal blower, a storage tank, a feed valve, a CCD (Charge Coupled Device) camera and a computer, the high-temperature frit furnace and the high-temperature electric furnace are connected through a heat insulation interlayer; an alundum tube is arranged in the high-temperature frit furnace, and a temperature-controllable sample bracket is arranged in the high-temperature electric furnace; one end of the pipeline is led into the corundum pipe, the other end of the pipeline is divided into two paths, one path is connected with the feed valve and the storage tank, and the other path is connected with the centrifugal blower; the CCD camera is arranged at a fire observation opening in the right side of the high-temperature electric furnace; and the computer is connected with the CCD camera. The device can test high-temperature erosion resistance, corrosion resistance and adhesion resistance of the coating material, integrates multiple test functions, realizes independent temperature control of a test sample, and is low in equipment cost, simple to operate and wide in application field.

Description

technical field [0001] The invention relates to the field of material performance testing devices, and the specific field is a multifunctional device and a testing method for testing the high-temperature erosion resistance, corrosion and adhesion characteristics of coating materials. [0002] technical background [0003] The heat transfer surfaces of biomass boilers and waste incineration boilers widely have problems such as high-temperature erosion, high-temperature corrosion, and adhesion of molten ash. At high temperature, the tiny ash particles produced by fuel combustion will erode the metal surface, and the existence of erosive wear will greatly reduce the service life of the equipment and greatly reduce the safety; the content of Cl and K elements in biomass fuel is high, and these elements At high temperature, substances such as HCl, KCl, and NaCl will be formed, which will further cause high-temperature corrosion on the heated surface, resulting in thinning of the w...

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Problems solved by technology

[0005] However, the current testing device is only tested for a single performance. For example, a high-temperature erosion wear test device disclosed in a Chinese invention patent with the application publication number CN207764071U can only realize the experiment of the high-temperature erosion wear performance of the sample.

In order to obtain the overall performance evaluation of coating materials, it is necessary to conduct multi-directional comprehensive tests on its high-temperature erosion resistance, corrosion resistance, and anti-adhesion performance. However, there is currently no device that can simultaneously realize the above-mentioned testing functions.

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