CN103555919A - Normal pressure amorphous iron core heat treatment method - Google Patents
Normal pressure amorphous iron core heat treatment method Download PDFInfo
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- CN103555919A CN103555919A CN201310590391.2A CN201310590391A CN103555919A CN 103555919 A CN103555919 A CN 103555919A CN 201310590391 A CN201310590391 A CN 201310590391A CN 103555919 A CN103555919 A CN 103555919A
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Abstract
The invention relates to a normal pressure amorphous iron core heat treatment method. The method comprises the following steps: (1) piling amorphous iron cores in a heat treatment tank, then inputting nitrogen into the heat treatment tank so that the volume concentration of nitrogen in the heat treatment tank is above 99.99% and then inputting argon or helium into the heat treatment tank, wherein the input quantity of argon or helium is 5-15% of the volume of the gases in the heat treatment tank; (2) enabling the heat treatment tank to be in a closed state, heating the interior of the heat treatment tank to 115-125 DEG C, then heating the interior to 475-485 DEG C, then heating the interior to 550-590 DEG C, then cooling the interior of the heat treatment tank to 145-155 DEG C and finally cooling the interior of the heat treatment tank to the normal temperature, thus completing heat treatment of the amorphous iron cores. The heat treatment method has the advantages that the heat treatment method can achieve heat treatment of the amorphous iron cores in a normal pressure state and has good uniformity of heating temperatures.
Description
Technical field
The present invention relates to a kind of amorphous iron core heat treating method, relate in particular to a kind of heat treating method of amorphous iron core normal pressure.
Background technology
Amorphous iron core is widely used in aviation transformer now, railway control system transformer, mechanical component quenching apparatus transformer, Laser Power Devices transformer, power transformer, supply transformer etc., it is divided into monocyclic volume iron core and dock iron core, monocyclic volume iron core is that the direct continuous coiling of band is become to annular, after being shaped, coiling to eliminate through Overheating Treatment the magnetic performance of the stress raising iron core of material internal, current amorphous iron core heat treating method is, amorphous iron core is put into heat treatment tank, in heat treatment tank, be vacuum state, then in the tank body outside of heat treatment tank, by heating rod, heat in to heat treatment tank, realize thus the thermal treatment to amorphous iron core, because be heats and heat-treats amorphous iron core under vacuum state, its tank body to heat treatment tank requires higher, make heat treatment process also have certain danger simultaneously.
Summary of the invention
For above-mentioned shortcoming, the object of the present invention is to provide a kind of heat treating method of amorphous iron core normal pressure, it can heat-treat amorphous iron core under normal pressure.
Technology contents of the present invention is: a kind of heat treating method of amorphous iron core normal pressure, and its step is as follows:
(1), amorphous iron core is piled up in heat treatment tank, its heat treatment tank comprises tank body, pile heap support, heating rod, thermal insulation layer, motor, fan, rotating shaft, seal closure, the first pneumatic tube, the second pneumatic tube and vapor pipe; Thermal insulation layer is arranged on tank body outside, and a pile heap support is arranged in tank body, and heating rod is arranged on tank body inner side or is arranged between thermal insulation layer and tank body; Motor is arranged on thermal insulation layer outside, fan is arranged in tank body, rotating shaft one end is connected with motor, the rotating shaft the other end is connected with fan with tank body through thermal insulation layer, seal closure is arranged on thermal insulation layer and by motor and covers, the first pneumatic tube and the second pneumatic tube are for inputting gas to tank body, and vapor pipe discharges gas for tank body;
By inputting nitrogen in the first pneumatic tube heat treated tank, the oxide gas volume concentrations in heat treatment tank is reached more than 99.99%, and then by input argon gas or helium in the second pneumatic tube heat treated tank, the input of argon gas or helium is 5～15% of the interior gas volume of heat treatment tank;
(2), heat treatment tank is interior in air-tight state, in 0.4～0.6 hour, by normal temperature, be heated to 115～125 ℃ in by heat treatment tank, then be incubated 0.8～1.2 hour, in 1.3～1.7 hours, be heated to 475～485 ℃ in by heat treatment tank again, then be incubated 0.8～1.2 hour, and then be heated to 550～590 ℃ in by heat treatment tank in 0.8～1.2 hour, then be incubated 1.8～2.2 hours, in 1.9～2.1 hours, cool to 145～155 ℃ in by heat treatment tank subsequently, last in 1.9～2.1 hours, cool to normal temperature in by heat treatment tank again and complete the thermal treatment to amorphous iron core.
In the heat treating method of above-mentioned amorphous iron core normal pressure, for the ease of the stacking of amorphous iron core and the quantity of stacking and the making requirement of reduction tank body that improves amorphous iron core, tank body is square long tank.
In the heat treating method of above-mentioned amorphous iron core normal pressure, the first pneumatic tube is communicated with seal closure.
The advantage that the present invention has is: the present invention heat-treats amorphous iron core after inputting nitrogen and argon gas or nitrogen and helium in tank body by the first pneumatic tube and the second pneumatic tube again, thereby need under vacuum state, not heat-treat, tank body just can be made into the square long tank using under normal pressure, not only facilitate the preparation of tank body, also lowered heat treatment requirements, thereby can realize under atmospheric pressure state, amorphous iron core is heated and heat-treated, be directly in tank body, to utilize heating rod to heat, make the good uniformity of the temperature of heating.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat treatment tank in the present invention.
Embodiment
The heat treating method of example 1, a kind of amorphous iron core normal pressure, its step is as follows:
(1), amorphous iron core is piled up in heat treatment tank, as shown in Figure 1, wherein heat treatment tank comprises tank body 1, pile heap support 2, heating rod 3, thermal insulation layer 4, motor 5, fan 6, rotating shaft 7, seal closure 8, the first pneumatic tube 9, the second pneumatic tube 10, vapor pipe 11 and valve 12; Thermal insulation layer 4 is arranged on tank body 1 outside, and a pile heap support 2 is arranged in tank body 1; Tank body 1 is square long tank; Heating rod 3 is arranged on tank body 1 inner side; Motor 5 is arranged on thermal insulation layer 4 outsides of tank body 1 bottom, fan 6 is arranged in tank body 1, rotating shaft 7 one end are connected with motor 5, rotating shaft 7 the other ends are connected with fan 6 with tank body 1 through thermal insulation layer 4, seal closure 8 is arranged on thermal insulation layer 4 and by motor 5 and covers and make tank body 1 isolated with extraneous sealing, and the first pneumatic tube 9 is communicated with seal closure 8; The second pneumatic tube 10 is communicated with tank body 1 bottom; Vapor pipe 11 is arranged on tank body 1 top, on the first pneumatic tube 9, the second pneumatic tube 10 and vapor pipe 11, is respectively provided with a valve 12;
Then the valve 12 on the first pneumatic tube 9 and vapor pipe 11 is opened; Motor 5 drives fan 6 to rotate by rotating shaft 7; The first pneumatic tube 9 is to the interior input nitrogen of seal closure 8, the gap that then nitrogen pass thermal insulation layer 4 and tank body 1 through motor 5 is in fan 6 is blown to tank body 1, air in tank body 1 is replaced to nitrogen, and the oxide gas volume concentrations in heat treatment tank is reached more than 99.99%, then the valve 12 on the first pneumatic tube 9 and vapor pipe 11 is closed; The valve 12 on the second pneumatic tube 10 is opened, to the interior input argon gas of tank body 1, the input of argon gas is 10% of the interior gas volume of heat treatment tank again; Again the valve 12 on the second pneumatic tube 10 is closed;
(2), heat treatment tank is interior in air-tight state, in 0.5 hour, by normal temperature, be heated to 120 ℃ in by heat treatment tank, then be incubated 1 hour, in 1.5 hours, be heated to 480 ℃ in by heat treatment tank again, then be incubated 1 hour, and then be heated to 585 ℃ in by heat treatment tank in 1 hour, be then incubated 2 hours, in 2 hours, cool to 150 ℃ in by heat treatment tank subsequently, finally in 2 hours, cool to normal temperature in by heat treatment tank again and complete the thermal treatment to amorphous iron core.
Claims (3)
1. a heat treating method for amorphous iron core normal pressure, its step is as follows:
(1), amorphous iron core is piled up in heat treatment tank, its heat treatment tank comprises tank body, pile heap support, heating rod, thermal insulation layer, motor, fan, rotating shaft, seal closure, the first pneumatic tube, the second pneumatic tube and vapor pipe; Thermal insulation layer is arranged on tank body outside, and a pile heap support is arranged in tank body, and heating rod is arranged on tank body inner side or is arranged between thermal insulation layer and tank body; Motor is arranged on thermal insulation layer outside, fan is arranged in tank body, rotating shaft one end is connected with motor, the rotating shaft the other end is connected with fan with tank body through thermal insulation layer, seal closure is arranged on thermal insulation layer and by motor and covers, the first pneumatic tube and the second pneumatic tube are for inputting gas to tank body, and vapor pipe discharges gas for tank body;
By inputting nitrogen in the first pneumatic tube heat treated tank, the oxide gas volume concentrations in heat treatment tank is reached more than 99.99%, and then by input argon gas or helium in the second pneumatic tube heat treated tank, the input of argon gas or helium is 5～15% of the interior gas volume of heat treatment tank;
(2), heat treatment tank is interior in air-tight state, in 0.4～0.6 hour, by normal temperature, be heated to 115～125 ℃ in by heat treatment tank, then be incubated 0.8～1.2 hour, in 1.3～1.7 hours, be heated to 475～485 ℃ in by heat treatment tank again, then be incubated 0.8～1.2 hour, and then be heated to 550～590 ℃ in by heat treatment tank in 0.8～1.2 hour, then be incubated 1.8～2.2 hours, in 1.9～2.1 hours, cool to 145～155 ℃ in by heat treatment tank subsequently, last in 1.9～2.1 hours, cool to normal temperature in by heat treatment tank again and complete the thermal treatment to amorphous iron core.
2. the heat treating method of a kind of amorphous iron core normal pressure according to claim 1; It is characterized in that tank body is square long tank.
3. the heat treating method of a kind of amorphous iron core normal pressure according to claim 1; It is characterized in that the first pneumatic tube is communicated with seal closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590391.2A CN103555919A (en) | 2013-11-22 | 2013-11-22 | Normal pressure amorphous iron core heat treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310590391.2A CN103555919A (en) | 2013-11-22 | 2013-11-22 | Normal pressure amorphous iron core heat treatment method |
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| CN103555919A true CN103555919A (en) | 2014-02-05 |
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| CN201310590391.2A Pending CN103555919A (en) | 2013-11-22 | 2013-11-22 | Normal pressure amorphous iron core heat treatment method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837126A (en) * | 1981-08-31 | 1983-03-04 | Nippon Steel Corp | Heat treatment for amorphous magnetic alloy |
| JPH03140414A (en) * | 1989-10-27 | 1991-06-14 | Toshiba Corp | Method for annealing iron core |
| CN1844417A (en) * | 2006-03-19 | 2006-10-11 | 江西大有科技有限公司 | Process and device for heat treatment of amorphous nano-crystalline alloy iron core |
| CN101650999A (en) * | 2009-08-13 | 2010-02-17 | 太原科技大学 | Fe-based amorphous or nanocrystalline soft magnetic alloy and preparation method thereof |
| CN201901687U (en) * | 2010-12-06 | 2011-07-20 | 保定天威集团有限公司 | Annular core annealing device of current transformer |
| CN202226883U (en) * | 2011-09-15 | 2012-05-23 | 上海日港置信非晶体金属有限公司 | Stress relieving device for amorphous alloy iron core of transformer |
| CN202626243U (en) * | 2012-05-24 | 2012-12-26 | 中兆培基（北京）电气有限公司 | Annealing device of iron core of amorphous alloy transformer |
| CN102965478A (en) * | 2012-12-07 | 2013-03-13 | 青岛云路新能源科技有限公司 | Heat treatment method for iron-based amorphous strip |
-
2013
- 2013-11-22 CN CN201310590391.2A patent/CN103555919A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837126A (en) * | 1981-08-31 | 1983-03-04 | Nippon Steel Corp | Heat treatment for amorphous magnetic alloy |
| JPH03140414A (en) * | 1989-10-27 | 1991-06-14 | Toshiba Corp | Method for annealing iron core |
| CN1844417A (en) * | 2006-03-19 | 2006-10-11 | 江西大有科技有限公司 | Process and device for heat treatment of amorphous nano-crystalline alloy iron core |
| CN101650999A (en) * | 2009-08-13 | 2010-02-17 | 太原科技大学 | Fe-based amorphous or nanocrystalline soft magnetic alloy and preparation method thereof |
| CN201901687U (en) * | 2010-12-06 | 2011-07-20 | 保定天威集团有限公司 | Annular core annealing device of current transformer |
| CN202226883U (en) * | 2011-09-15 | 2012-05-23 | 上海日港置信非晶体金属有限公司 | Stress relieving device for amorphous alloy iron core of transformer |
| CN202626243U (en) * | 2012-05-24 | 2012-12-26 | 中兆培基（北京）电气有限公司 | Annealing device of iron core of amorphous alloy transformer |
| CN102965478A (en) * | 2012-12-07 | 2013-03-13 | 青岛云路新能源科技有限公司 | Heat treatment method for iron-based amorphous strip |
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Application publication date: 20140205 |