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High-temperature erosion abrasion test device and method

A test device and erosion technology, applied in the field of material wear, corrosion and protection, to shorten the test cycle, accurate test data, and improve test efficiency.

Inactive Publication Date: 2009-07-08
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the invention is in order to solve the test and evaluation problem of thermal spraying coating (and other materials) under high temperature erosion resistance performance, for testing and evaluating the high temperature erosion resistance performance of thermal spraying coating provide novel test device and method

Method used

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing:

[0026] As shown in Figure 1, the present embodiment includes an erosion box 13, a sand feeder 4, and a funnel 7 arranged in the erosion box 13, a sand sub-pan 8, a sand rejection pan 9, a motor 14, a support 3 and electrode 12. Among them, the sand feeder 4 is arranged on the box cover 10 above the erosion box 13, the lower port of the shakeout tank 6 is aligned with the funnel mouth 7, and the sand grains 5 are transported to the shakeout tank 6 by a conveyor belt, and along the funnel 7 It is transported to the sand distribution tray 8, and then thrown out from the four sand outlet channels of the sand rejection tray 9, hits the surface of the sample 11, and finally passes through the sand slide plate 15 and is collected at the sand outlet 17. The sample 11 is installed on the electrode 12 fixed on the bracket 3 , the electrode 12 is connected with the heating power sour...

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Abstract

The invention relates to a high-temperature erosive abrasion test device and a method, and belongs to the technical field of abrasion, erosion and protection of materials. The device mainly comprises a control cabinet connected with an erosion box body, a heating power supply and a water cooling system. Sand grains are conveyed to a rotary sand slinging tray by a feeder, and thrown out by the action of centrifugal force to impact the surface of a sample. The sample is heated by self resistance heat. High-temperature resistant erosive abrasion property of a coating is evaluated by calculating mass difference of the sample before and after abrasion. A plurality of samples can be put in once test so as to improve test efficiency, the sand feeding amount can be accurately controlled, and test temperature, erosion speed and erosion angle of erosive abrasion can be randomly changed during test. The device has the advantages of simple operation, accurate test data and good repeatability. The device and the method are suitable for high-temperature erosive abrasion test of hot spray coatings and other materials.

Description

technical field [0001] The invention relates to a high-temperature erosion wear testing device and method, which uses the principle of combined action of sand grain erosion and high-temperature oxidation to measure the high-temperature erosion-wear resistance of a coating, and belongs to the technical field of material wear, corrosion and protection. Background technique [0002] The abrasion and protection of materials has always been the focus of research. In the industrial fields of metallurgy, electric power, mining, building materials and chemical industry, due to the wear and corrosion of materials, especially high-temperature erosion and wear, it will cause huge waste and loss every year, and even cause damage to equipment and casualties. Therefore, improving the high temperature erosion resistance of materials has become a problem that people pay close attention to and urgently needs to be solved. [0003] There are many ways to improve the high temperature erosion ...

Claims

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Application Information

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IPC IPC(8): G01N3/56
Inventor 魏琪冯艳玲班书英李辉李红李国栋栗卓新
Owner BEIJING UNIV OF TECH
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