Study on Properties of Pure Iron and Soft Magnetic Material of Relay and Selection of Heat Treatment Process

doi:10.16628/j.cnki.2095-8188.2024.07.009

LOW VOLTAGE APPARATUS ›› 2024, Vol. 0 ›› Issue (7): 60-64.doi: 10.16628/j.cnki.2095-8188.2024.07.009

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Study on Properties of Pure Iron and Soft Magnetic Material of Relay and Selection of Heat Treatment Process

SHI Lei, WU Duanjian, LIAO Yushen, WU Yuanjin

Guizhou Zhenhua Qunying Electrical Appliances Co.,Ltd., Guiyang 550018, China

Received:2024-04-12 Online:2024-07-30 Published:2024-08-21

Abstract

Abstract:

The magnetic properties of the pure iron affect the core function of relays.The differences in magnetic properties of several pure iron materials are investigated primarily under various heat treatment processes and the impact on relay related performane is simulated.Finally, based on the actual usage scenarios of relays,the recommendations on the selection of pure iron materials and heat treatment processes of relay are put forward.

Key words: relay, pure iron, magnetic performance, heat treatment process

CLC Number:

TM58

SHI Lei, WU Duanjian, LIAO Yushen, WU Yuanjin. Study on Properties of Pure Iron and Soft Magnetic Material of Relay and Selection of Heat Treatment Process[J]. LOW VOLTAGE APPARATUS, 2024, 0(7): 60-64.

纯铁材料	最大μ_i	最大μ_m	最小H_c	最大B_{5 000}
国产A厂家	氢气930 ℃	氢气930 ℃	真空930 ℃	真空930 ℃
国产B厂家	氢气930 ℃	氢气930 ℃	氢气930 ℃	真空860 ℃
进口C厂家	氢气860 ℃	氢气860 ℃	氢气930 ℃	氢气860 ℃

材料	μ_i	μ_m	H_c/(A·m^-1)	B/T(B_{5 000})
DT4C纯铁	—	15 000	32.0	1.71
1J76合金	20 000	140 000	2.8	0.75
1J51合金	—	35 000	19.9	1.50
铁钴合金	—	12 000	45.0	2.35

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Study on Properties of Pure Iron and Soft Magnetic Material of Relay and Selection of Heat Treatment Process

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