CN102399951A - Vacuum heat treatment process of soft magnetic alloy - Google Patents
Vacuum heat treatment process of soft magnetic alloy Download PDFInfo
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- CN102399951A CN102399951A CN2011103664405A CN201110366440A CN102399951A CN 102399951 A CN102399951 A CN 102399951A CN 2011103664405 A CN2011103664405 A CN 2011103664405A CN 201110366440 A CN201110366440 A CN 201110366440A CN 102399951 A CN102399951 A CN 102399951A
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Abstract
The invention relates to a vacuum heat treatment process of soft magnetic alloy, which is characterized by comprising the following concrete technical processes of: (1) preparation: cleanly cleaning parts and test rings by gasoline and cleaning liquid, baking the parts and the test rings to avoid the deformation or the magnetic performance reduction of components in the cleaning and clearing process, transferring the parts and the test rings into a stainless steel annealing box and spreading aluminum oxide powder between the parts and the test rings; (2) vacuum annealing: maintaining the vacuum degree at (1 to 5) *10<-1> Pa, cooling the materials to 400 DEG C at a speed of 150 to 200 DEG C/h, transferring the materials to a cooling chamber when the materials are cooled to 100 to 120 DEG C, discharging the materials out of a furnace after the temperature is lower than or equal to 60 to 80 DEG C, taking out parts for air cooling or wind cooling to the room temperature after the furnace discharge of the parts, cleanly removing the aluminum oxide powder and packing the materials; and (3) inspection: maintaining the bright appearance without oxidization and deformation. The vacuum heat treatment process has the beneficial effects that the vacuum heat treatment process more suitable for the soft magnetic alloy material characteristics is provided, workpieces after the vacuum heat treatment have higher oxidization resistance and anti-corrosion performance than ordinarily treated workpieces, the surfaces of the workpieces are bright and clean, and in addition, the microcosmic structures are more compact.
Description
Technical field
The present invention relates to a kind of thermal treatment process, especially a kind of vacuum heat treatment process of non-retentive alloy.
Background technology
As everyone knows, magnetically soft alloy material is mainly used in makes electrician and electronic product part, is widely used in basic industry and high-tech areas such as power transmission and transforming equipment, household electrical appliance, motor, computer and military equipment.These starting material are mainly bar, band and sheet material etc., and part cuts with cold worked mode, punching, punching press or winding shaping.In the course of processing, the original grain structure of material will be destroyed, and make the magnetic property of material descend, and the machining stress that produces in the course of processing simultaneously will cause the instability of accessory size.So by the part that non-retentive alloy is made, must anneal after shaping, make material regain well-regulated equi-axed crystal tissue; And the foreign matter content in the reduction material; Recover and improve the magnetic behavior of material, eliminate machining stress simultaneously, the stabilizer elements size.
What present non-retentive alloy workpiece processing was adopted usually is conventional heat treating method; There is certain defective in the workpiece product surface that uses this method to handle; As the surface-brightening that does not reach the workpiece requirement purifies; Workpiece surface has the scales of skin that peel off etc., and these defectives often cause workpiece can't reach the required high performance requirements of workpiece.
Summary of the invention
The present invention its objective is the vacuum heat treatment process that a kind of non-retentive alloy is provided for the defective that overcomes the prior art existence proposes.
The technical solution adopted for the present invention to solve the technical problems is:
(1) adopt the method for vacuum annealing, non-retentive alloy part and test ring are encased in the stainless steel annealing basin, spread aluminum oxide powder between part and the test ring, bond each other to avoid product, clean with scale removal process in be out of shape or make the magnetic property reduction.
(2) control following parameter well: charging temperature during heating≤150 ℃, warm-up time 180 ~ 240min, 1150 ± 10 ℃ of holding temperatures, soaking time 240 ~ 300min, 150 ~ 200 ℃/h of speed during cooling, tapping temperature≤60 ~ 80 ℃.
Compared with prior art, usefulness of the present invention is: a kind of vacuum heat treatment process that is fit to the magnetically soft alloy material characteristic more is provided, the workpiece after the employing vacuum heat treatment; Anti-oxidant stronger with erosion resistance than Conventional Heat Treatment workpiece, the workpiece surface light purifies, and microtexture is more fine and close; Do not produce under the situation of excessive heat treatment deformation in assurance,, finally confirm rational warm up time through lot of test; Preheating temperature, to a greater extent save energy with enhance productivity.
Embodiment
Concrete technological process of the present invention is:
(1) prepare: part and test ring clean up with gasoline or scavenging solution, and product distortion or magnetic property reduction in cleaning and scale removal process are avoided in oven dry, and part and test ring are changed in the stainless steel annealing box, spread aluminum oxide powder between part and test ring.
(2) vacuum annealing: vacuum tightness remains on (1 ~ 5) * 10-1pa, is cooled to 400 ℃ by 150 ~ 200 ℃/hour, transfers to cooling room to being as cold as 100-120 ℃; Temperature is come out of the stove for≤60-80 ℃; Take out part air cooling or the air-cooled room temperature that arrives after part is come out of the stove, remove clean aluminum oxide powder, packing.
(3) check: outward appearance keeps light, non-oxidation, distortion.
Claims (3)
1. the vacuum heat treatment process of a non-retentive alloy is characterized in that concrete technological process is:
(1) prepare: part and test ring clean up with gasoline or scavenging solution, oven dry; Avoid product distortion or magnetic property reduction in cleaning and scale removal process; Part and test ring change in the stainless steel annealing box, spread aluminum oxide powder between part and test ring;
(2) vacuum annealing: vacuum tightness remains on (1 ~ 5) * 10-1pa, is cooled to 400 ℃ by 150 ~ 200 ℃/hour, transfers to cooling room to being as cold as 100-120 ℃; Temperature is come out of the stove for≤60-80 ℃; Take out part air cooling or the air-cooled room temperature that arrives after part is come out of the stove, remove clean aluminum oxide powder, packing;
(3) check: outward appearance keeps light, non-oxidation, distortion.
2. according to the vacuum heat treatment process of the described a kind of non-retentive alloy of claim 1; It is characterized in that adopting the method for vacuum annealing; Non-retentive alloy part and test ring are encased in the stainless steel annealing basin; Spread aluminum oxide powder between part and the test ring, bond each other to avoid product, clean with scale removal process in distortion or make the magnetic property reduction.
3. according to the vacuum heat treatment process of the described a kind of non-retentive alloy of claim 1; It is characterized in that controlling well following parameter: charging temperature during heating≤150 ℃; Warm-up time 180 ~ 240min, 1150 ± 10 ℃ of holding temperatures, soaking time 240 ~ 300min; 150 ~ 200 ℃/h of speed during cooling, tapping temperature≤60 ~ 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103664405A CN102399951A (en) | 2011-11-18 | 2011-11-18 | Vacuum heat treatment process of soft magnetic alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103664405A CN102399951A (en) | 2011-11-18 | 2011-11-18 | Vacuum heat treatment process of soft magnetic alloy |
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| CN102399951A true CN102399951A (en) | 2012-04-04 |
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| CN2011103664405A Pending CN102399951A (en) | 2011-11-18 | 2011-11-18 | Vacuum heat treatment process of soft magnetic alloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086328A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | The heat treatment method of mild steel soft magnetic materials |
| CN106636594A (en) * | 2016-12-16 | 2017-05-10 | 辽宁四方核电装备股份有限公司 | Heat treatment method for threaded bushings for nuclear power |
| CN109706295A (en) * | 2018-12-29 | 2019-05-03 | 苏州铂韬新材料科技有限公司 | A kind of novel annealing process of sheet Fe base alloy powder |
| CN112430720A (en) * | 2020-11-13 | 2021-03-02 | 沈阳航天新光集团有限公司 | Soft magnetic alloy annealing process |
| CN116356226A (en) * | 2023-04-07 | 2023-06-30 | 上海正泰智能科技有限公司 | Processing method of coercivity of magnetic part |
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| CN1401793A (en) * | 2002-10-09 | 2003-03-12 | 北京科技大学 | Bioriented silicon steel vaccum annealing process |
| CN1718827A (en) * | 2005-06-22 | 2006-01-11 | 上海豪高机电科技有限公司 | Soft magnetic alloy rod material and its manufacturing technology |
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2011
- 2011-11-18 CN CN2011103664405A patent/CN102399951A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401793A (en) * | 2002-10-09 | 2003-03-12 | 北京科技大学 | Bioriented silicon steel vaccum annealing process |
| CN1718827A (en) * | 2005-06-22 | 2006-01-11 | 上海豪高机电科技有限公司 | Soft magnetic alloy rod material and its manufacturing technology |
Non-Patent Citations (2)
| Title |
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| 任卫斌: "一种精确控制铁镍软磁合金磁性能的退火工艺", 《金属热处理》 * |
| 张善庆等: "Fe-Co软磁合金真空磁场热处理工艺研究", 《航空材料学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086328A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | The heat treatment method of mild steel soft magnetic materials |
| CN106636594A (en) * | 2016-12-16 | 2017-05-10 | 辽宁四方核电装备股份有限公司 | Heat treatment method for threaded bushings for nuclear power |
| CN109706295A (en) * | 2018-12-29 | 2019-05-03 | 苏州铂韬新材料科技有限公司 | A kind of novel annealing process of sheet Fe base alloy powder |
| CN112430720A (en) * | 2020-11-13 | 2021-03-02 | 沈阳航天新光集团有限公司 | Soft magnetic alloy annealing process |
| CN116356226A (en) * | 2023-04-07 | 2023-06-30 | 上海正泰智能科技有限公司 | Processing method of coercivity of magnetic part |
| CN116356226B (en) * | 2023-04-07 | 2024-04-12 | 上海正泰智能科技有限公司 | Processing method of coercivity of magnetic part |
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Application publication date: 20120404 |