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Oriented silicon steel annealing sleeve and oriented silicon steel annealing method

A technology of oriented silicon steel and sleeves, applied in heat treatment equipment, furnaces, heat treatment furnaces, etc., can solve the problems of uneven heating of oriented silicon steel, achieve low cost, simple manufacture, and improve uniformity

Active Publication Date: 2018-11-13
SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem of uneven heating during the high temperature annealing process of oriented silicon steel

Method used

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  • Oriented silicon steel annealing sleeve and oriented silicon steel annealing method
  • Oriented silicon steel annealing sleeve and oriented silicon steel annealing method
  • Oriented silicon steel annealing sleeve and oriented silicon steel annealing method

Examples

Experimental program
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Embodiment 1

[0037] This embodiment provides a sleeve for annealing oriented silicon steel, figure 1 is the front view of the annealing sleeve for grain-oriented silicon steel, figure 2 is the bottom view of the sleeve for annealing oriented silicon steel, image 3 is a top view of the sleeve for annealing oriented silicon steel, Figure 4 yes image 3 A partial enlargement of the . refer to Figure 1 to Figure 4 , the annealing sleeve for oriented silicon steel includes a sleeve body 11 and at least two grooves 12 arranged on the outer wall of the sleeve body 11 .

[0038] Specifically, the sleeve body 11 is tubular. In this embodiment, the horizontal section of the inner wall of the sleeve body 11 is circular. In other embodiments, the horizontal section of the inner wall of the sleeve body 11 may also be in geometric shapes such as square, rhombus, and triangle, which is not limited in the present invention. The length of the sleeve body 11 can be determined according to the wid...

Embodiment 2

[0043] This embodiment provides another sleeve for annealing oriented silicon steel, Figure 5 It is the front view of the sleeve for annealing oriented silicon steel, and the bottom view, top view and partial enlarged view of the sleeve for annealing oriented silicon steel can refer to Example 1. Compared with Embodiment 1, the difference of this embodiment is that the number of the grooves 12 is at least four, and the at least four grooves 12 include at least two first grooves 121 and at least two second grooves. groove 122 , and the length of the first groove 121 is smaller than the length of the second groove 122 . In this embodiment, the length of the first groove 121 is The length of the second groove 122 is Among them, l 0 is the length of the sleeve body 11. The depth of the first groove 121 and the depth of the second groove 122 may be the same or different.

[0044] Further, the first groove 121 and the second groove 122 are arranged at intervals, that is, the...

Embodiment 3

[0051] This embodiment provides a method for annealing grain-oriented silicon steel, including:

[0052] The annealing sleeve for oriented silicon steel is used as the inner core to coil the oriented silicon steel to obtain a steel coil, and the annealing sleeve for oriented silicon steel can be the sleeve for annealing oriented silicon steel provided in embodiment 1 or embodiment 2;

[0053] Rolling the steel into a furnace for high-temperature annealing, during which the upper end of the sleeve body 11 faces upward;

[0054] After the high-temperature annealing is completed, the steel coil is sent to the stretching and tempering unit for uncoiling, so as to remove the annealing sleeve for the oriented silicon steel.

[0055] It can be seen that the sleeve for annealing oriented silicon steel is easy to operate and can be recycled.

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Abstract

The invention discloses an oriented silicon steel annealing sleeve and an oriented silicon steel annealing method. The oriented silicon steel annealing sleeve comprises a tubular sleeve body and at least two grooves evenly formed in the outer wall of the sleeve body; the length direction of the grooves is parallel with the axial direction of the sleeve body; and one end face of each groove and theupper end face of the sleeve body are located in the same plane. The oriented silicon steel annealing method comprises the steps that the oriented silicon steel annealing sleeve serves as an inner core to wind oriented silicon steel so as to obtain a steel coil; the steel coil is put into a furnace to be subjected to high-temperature annealing, and the upper end face of the sleeve body faces upwards in the high-temperature annealing process; and after high-temperature annealing is finished, the steel coil is conveyed to a stretching leveling machine to be uncoiled, and then the oriented silicon steel annealing sleeve is taken down. The oriented silicon steel annealing sleeve and the oriented silicon steel annealing method can improve the uniformity of the temperature of the steel coil inthe high-temperature annealing process.

Description

technical field [0001] The invention relates to the technical field of oriented silicon steel manufacturing, in particular to a sleeve for annealing oriented silicon steel and an annealing method for oriented silicon steel. Background technique [0002] Oriented silicon steel, also known as cold-rolled transformer steel, is an important ferrosilicon alloy used in the transformer manufacturing industry. Oriented silicon steel needs to be coated with magnesium oxide isolation coating after cold rolling decarburization annealing, that is, the oriented silicon steel is coiled horizontally and then turned into a vertical coil, sent to the ring furnace for high temperature annealing, and then turned into a horizontal coil again after being released from the furnace, and then to Stretch skinning unit for uncoiling and application of insulating coating. The high-temperature annealing temperature of grain-oriented silicon steel reaches 1200 degrees Celsius, and the soaking time in t...

Claims

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Application Information

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IPC IPC(8): C21D1/26C21D9/52C21D11/00
CPCC21D1/26C21D9/525C21D11/00
Inventor 高倩王现辉龚坚贺小国王彦龙曹来福王守金肖辉明
Owner SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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