Ceramic product sintering temperature testing method and ceramic product metal element precipitation amount testing method

A technology of sintering temperature and test method, applied in the field of ceramic products, can solve the problems of damage to ceramic products, complicated sintering temperature test method, and inability to detect sintering temperature, etc., and achieve the effect of simple test method

Active Publication Date: 2019-10-15
深圳市应星开物科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the traditional test method for sintering temperature is complicated, and the ceramic product is damaged during the test process, so it is impossible to detect the sintering temperature of each produced ceramic product

Method used

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  • Ceramic product sintering temperature testing method and ceramic product metal element precipitation amount testing method
  • Ceramic product sintering temperature testing method and ceramic product metal element precipitation amount testing method
  • Ceramic product sintering temperature testing method and ceramic product metal element precipitation amount testing method

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preparation example Construction

[0052] Although the raw materials for the preparation of the above standard products are the same, they are sintered at different sintering temperatures. Due to the ignition loss effect in the high temperature sintering process, the percentage content of some elements will decrease. The greater the reduction, the different percentages of the characteristic elements in the resulting standard.

[0053] Based on the shrinkage effect of high-temperature firing, due to the volume reduction of ceramic products (taking purple sandware as an example, the firing shrinkage rate is about 3% to 10%), the higher the sintering temperature, the greater the firing shrinkage rate. Therefore, under the same test conditions of energy dispersive X-ray fluorescence spectrometry for ceramic products prepared at different sintering temperatures, the measured characteristic elements will have obvious differences and quantitative data that can be distinguished. In this embodiment Use this as the test ...

Embodiment 1

[0094] The specific process of the test method of the sintering temperature of the sample to be tested of embodiment 1 is as follows:

[0095] Taking the green (tender mud) at the bottom of the purple mud tank as an example, five groups of samples were made from 1180°C to 1220°C at 10°C, and each set of samples included 10 purple sand test pieces. It is fired at 1190°C, 1200°C, 1210°C and 1220°C for the same time, and then the percentage of characteristic elements of the purple sand test piece is tested by energy dispersive X-ray fluorescence spectrometry, and the percentage of characteristic elements of each group of samples is obtained The average value of the content is shown in Table 1 below. Then according to the percentage content of the characteristic element and the sintering temperature, the functional relationship between the percentage content of the characteristic element Fe and the sintering temperature is obtained: y=103.05x-25316, where x represents the sinterin...

Embodiment 2

[0101] The specific process of the test method of the sintering temperature of the sample to be tested of embodiment 2 is as follows:

[0102] Taking the green mud of Jiani Mine in Qinglong Mountain as an example, the sintering temperature is generally around 1200°C to 1230°C, and 8 groups of samples with different sintering temperatures are fired at 1170°C to 1240°C. The sintering temperature of each group of samples is shown in Table 2 below . There are 10 samples in each group, and energy dispersive X-ray fluorescence spectrometry is used to obtain the percentage content of the characteristic elements of each sample in each group of samples, and calculate the average of the percentage contents of the characteristic elements of each group of samples Values, the data table of the sintering temperature and the percentage content of the characteristic elements shown in Table 2 below is obtained.

[0103] According to the percentage content of characteristic element shown in ta...

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Abstract

The invention relates to a ceramic product sintering temperature testing method and a ceramic product metal element precipitation amount testing method. The ceramic product sintering temperature testing method comprises the following steps: multiple standard products with the same preparation materials and different sintering temperatures are provided; the standard products are tested by adoptingenergy dispersive X-ray fluorescence spectroscopy to obtain a percentage of a characteristic element; based on the percentage of the characteristic element and the sintering temperature, a functionalrelationship between the percentage of the characteristic element and the sintering temperature is obtained; a to-be-tested sample is tested to obtain the percentage of the characteristic element of the to-be-tested sample; and based on the functional relationship and the percentage of the characteristic element of the to-be-tested sample, the sintering temperature of the to-be-tested sample is calculated and obtained. The above ceramic product sintering temperature testing method can test the sintering temperature of each ceramic product, monitoring on the ceramic product metal element precipitation amount is realized through monitoring the sintering temperature, and the use safety of the ceramic product is ensured.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a method for testing the sintering temperature of ceramics and a method for testing the precipitation of metal elements in ceramics. Background technique [0002] Ceramic products usually contain various natural and artificially added harmful heavy metal elements, which are excessively released during use and absorbed by the human body. After long-term accumulation, they will cause certain impacts and hazards on human health, such as lead, cadmium, mercury, arsenic, Elements such as barium, hexavalent chromium and bromide. Zisha ware, in particular, is widely used as a utensil for drinking tea. The physical characteristics of tea water are weak acidity, which makes it easier for heavy metal ions to precipitate out of tea water. Studies have shown that the precipitation of heavy metal elements in Zisha ware is related to the sintering temperature. Therefore, the precipitation of heavy me...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N21/31G01N21/73
CPCG01N21/3103G01N21/73G01N23/223G01N2021/3114G01N2223/076G01N2223/1016
Inventor 陈文彬林玲罗小春
Owner 深圳市应星开物科技有限公司
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