高精度钾热管铝凝固点炉研制及性能测试

doi:10.3969/j.issn.1000-1158.2022.11.05

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Abstract As isothermal furnace liners, heat pipes can be used to improve the temperature uniformity of the fixed point furnaces. In order to improve the reproducibility of the freezing point of aluminum, a potassium heat pipe fixed point furnace for aluminum freezing point was developed. The production processes of potassium heat pipe and fixed point furnace were introduced, and the performance of the potassium heat pipe furnace was tested. The results show that there was no obvious temperature overshoot during the heating process of furnace startup, which can effectively extend the service life of the aluminum fixed point cell. The vertical temperature uniformity was 6.6mK. The repeatability of aluminum freezing point realized by the furnace was 0.02mK.

Key words： metrology potassium heat pipe aluminum freezing point fixed point furnace temperature uniformity;plateau;ITS-90

Received: 16 April 2021 Published: 14 November 2022

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TB942

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	Articles by authors
	LIU Ying
	YAN Xiao-ke
	ZHANG Jing
	WANG Ning
	ZHANG Wen

Cite this article:

LIU Ying,YAN Xiao-ke,ZHANG Jing, et al. Development and Performance Test of High Precision Potassium Heat Pipe Furnace for Aluminum Fixed Point[J]. Acta Metrologica Sinica, 2022, 43(11): 1418-1423.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.11.05 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I11/1418

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