Magnetic temperature compensation alloy with high performance for watt-hour meter and its production technique

A magnetic temperature compensation and production process technology, applied in the field of magnetic temperature compensation alloys, can solve problems such as wide performance range

Inactive Publication Date: 2005-12-07
CHONGQING MATERIALS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The national standard 1J30 alloy is a magnetic temperature compensation alloy containing Ni30%. Its composition content is: Ni29.9~30.5%, Mn≤0.4%, Si≤0.3%, and the rest is Fe. Compared with the former, the performance of 1J30 in all aspects better, but still has a wide range of performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Example 1. Select the composition content of the alloy as follows: Ni29.9%, Mn0.4%, Si0.3%, and the rest is Fe.

[0013] Vacuum induction smelting is used for the above-mentioned components, and after melting, they are cast into φ90mm electrode rods, then electroslag remelted into φ150mm ingots, forged at 1100°C into 30mm×85mm slabs, and hot-rolled at the same temperature into 10mm thick plates. After heat treatment at 1100°C, the thickness of the finished product is obtained by cold rolling, and finally the final heat treatment is completed in a hydrogen-protected continuous heat treatment furnace at 800°C. The measured properties of the alloy are shown in Table 3, which is consistent with Table 1 through calculation.

[0014] temperature

(℃)

Magnetic field strength

(A / m)

Magnetic induction B

GS

50

8000

517

25

8000

1673

12.5

8000

2404

0

8000

3267

...

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Abstract

A high-performance alloy with magnetic temp compensation for high-precision kilowatt-hour meter contains Ni (29.9-30.5%), Mn (0.4-0.8%), Si (0.3-0.7%) and Fe (rest). It is prepared through smelting in vacuum induction furnace, electroslag resmelting, casting, forging at 1100 deg.C, hot rolling, heat treating at 1100 deg.C, cold rolling, and final heat treating at 800-1000 deg.C under protection of hydrogen gas. Its advantages are high B-t linearity, and higher compensating power.

Description

technical field [0001] The invention belongs to the technical field of magnetic temperature compensation alloys, and in particular relates to a production process of high-performance magnetic temperature compensation alloys for watt-hour meters. Background technique [0002] Watt-hour meters are widely used in all walks of life and every family, and their measurement accuracy is directly related to the vital interests of every industry and family. The magnetic properties of the permanent magnet in the damping part of the watt-hour meter will change with the change of temperature. This change makes the accuracy of the watt-hour meter greatly affected by the temperature, and the magnetic temperature compensation alloy can compensate for this change, so that the damping The working magnetic flux of the parts remains unchanged in the normal temperature range, thus ensuring the accuracy of the watt-hour meter. [0003] For many years, the grade of magnetic temperature compensati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/08
Inventor 袁康潘雄王东哲孙威黄水清
Owner CHONGQING MATERIALS RES INST
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