CN103627860A - Cooling device of isothermal normalizing furnace - Google Patents
Cooling device of isothermal normalizing furnace Download PDFInfo
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- CN103627860A CN103627860A CN201310616318.8A CN201310616318A CN103627860A CN 103627860 A CN103627860 A CN 103627860A CN 201310616318 A CN201310616318 A CN 201310616318A CN 103627860 A CN103627860 A CN 103627860A
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- cooling room
- cooling
- normalizing furnace
- isothermal normalizing
- blower fan
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Abstract
The invention discloses a cooling device of an isothermal normalizing furnace. The cooling device comprises a cooling chamber, wherein an induced draft fan is arranged on the top of the cooling chamber and is connected with an air outlet of the cooling chamber through an air channel. A workpiece is cooled in an induced-draft cooling mode. The cooling device has the characteristics of high penetrability and obvious cooling effect. The quality qualified rate of a product is improved.
Description
Technical field
The present invention relates to a kind of thermal treatment refrigerating unit, be specifically related to a kind of refrigerating unit of isothermal normalizing furnace.
Background technology
What the general majority of refrigerating unit of existing isothermal normalizing furnace adopted is that workpiece is delivered in cooling room by conveying belt, then with blower fan, directly workpiece is blown to the effect that reaches cooling, and then enters down manufacturing procedure one.Though this traditional method of cooling can realize, in whole process of cooling, cold wind directly blows on workpiece, causes work-piece cools excessive velocities, affects workpiece mechanical property; Meanwhile, the upper and lower temperature difference of workpiece, has a strong impact in quality product through heat treated workpiece hardness scattered error compared with ambassador, restriction enterprise development.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, use refrigerating unit reliable, realize the controlled isothermal normalizing furnace of cooling slow cooling by exhausting mode from bottom to top.
For achieving the above object, the refrigerating unit of a kind of isothermal normalizing furnace of the present invention, comprises cooling room, and the top of described cooling room is provided with exhausting blower fan, and exhausting blower fan is connected with the air outlet of cooling room through air channel.
Described cooling room bottom is provided with frequency conversion fan, and frequency conversion fan is connected with air channel through cooling room blast inlet.
The inwall of described cooling room is provided with infrared thermometer.
The outside of described cooling room is provided with variable-frequence governor.
The suction opening place of described exhausting blower fan is provided with for regulating the regulated valve of air quantity.
Adopt after technique scheme, because the top of described cooling room is provided with exhausting blower fan, exhausting blower fan is connected with the air outlet of cooling room through air channel.Like this, the exhausting blower fan of installing by the top at cooling room, is extracted out the warm air on workpiece in cooling room by exhausting blower fan.The type of cooling of this employing exhausting, has penetration power strong, and cooling performance is more obvious, thereby has improved the qualification rate of quality product.
Further, described cooling room bottom is provided with frequency conversion fan, and frequency conversion fan is connected with air channel through cooling room blast inlet, increases the air quantity in cooling room, improves cooling performance.
Further, the inwall of described cooling room is provided with infrared thermometer, measures the temperature of workpiece surface by infrared thermometer, thereby realizes the control of exhausting amount.
Further, the outside of described cooling room is provided with variable-frequence governor, by variable-frequence governor, changes frequency conversion fan rotating speed, thereby changes air output.
Further, the suction opening place of described exhausting blower fan is provided with for regulating the regulated valve of air quantity, by regulated valve, regulate the exhausting amount of exhausting blower fan, make workpiece surface temperature constant within the scope of technique initialization, guarantee to obtain thinner perlite+ferritic structure after normalizing.
Accompanying drawing explanation
Fig. 1 is the refrigerating unit structural representation of a kind of isothermal normalizing furnace of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the refrigerating unit of a kind of isothermal normalizing furnace of the present invention is described further;
As seen from Figure 1, the refrigerating unit of a kind of isothermal normalizing furnace of the present invention, comprise cooling room 1, the top of described cooling room 1 is provided with exhausting blower fan 2, bottom is provided with frequency conversion fan 3, exhausting blower fan 24 is connected with the air outlet of cooling room 1 through air channel, and frequency conversion fan 3 is connected with air channel 4 through cooling room 1 blast inlet.
Use when of the present invention, by pending workpiece by tape transport to cooling room 1, enable exhausting blower fan 2, the warm air of workpiece surface is by the air outlet of cooling room 1 like this, through air channel, 4 are extracted out fast by exhausting blower fan 2, thus by work-piece cools.The cooling workpiece of this employing exhausting mode, penetration power is strong, meets mechanical property, effectively improves the qualification rate of product.
In the present embodiment, in order to increase the air quantity of 1 li of cooling room, in the bottom of cooling room 1, frequency conversion fan 4 is set, frequency conversion fan 4 is connected with air channel 3 through cooling room 1 blast inlet, thereby increases the air quantity of 1 li of cooling room; Between air channel 3, be provided with for regulating the regulated valve 7 of air quantity, be used for regulating 1 li of exhausting amount of cooling room, thereby regulate the blending ratio of cold wind and hot blast, to meet required cooling workpiece type and processing requirement; In order to guarantee speed of cooling and the temperature of workpiece, at cooling room 1 inwall, infrared thermometer 5 is set, the outside of cooling room 1 is provided with variable-frequence governor 6, by infrared thermometer 5, measure the temperature of workpiece surface, and will output signal to control device, control device changes exhausting blower fan 2 rotating speeds according to the parameter of setting by variable-frequence governor 6, and exhausting amount is changed, make workpiece surface temperature constant within the scope of technique initialization, guarantee to obtain thinner perlite+ferritic structure after normalizing; Cooling room 1 shell forms with shaped steel and Plate Welding, is filled with heat-insulating heat-preserving material between inside and outside shell, effectively improves the cooling room temperature difference.
The present invention, by the cooling workpiece of exhausting blower fan 2 exhausting, sets up the air quantity that frequency conversion fan 4 increases by 1 li of cooling room simultaneously, realizes workpiece slow cooling, optimizes workpiece metallographic structure, has guaranteed the quality product after normalizing.Workpiece main technical details after the present invention processes: hardness scattered error single-piece≤15HB, with criticize≤20HB; The high quality requirement of metallographic structure≤3 grade, loose≤3 grades, banded structure≤3 grade, grain fineness number 6-8Ji,Wu Wei Shi body tissue etc.Be convenient to follow-up gear hobbing, gear rolling processing, easily guarantee profile of tooth, the teeth directional of gear, spline, at utmost improve the quality of products.
Claims (5)
1. a refrigerating unit for isothermal normalizing furnace, comprises cooling room (1), it is characterized in that: the top of described cooling room (1) is provided with exhausting blower fan (2), and through air channel, (3) are connected with the air outlet of cooling room (1) exhausting blower fan (2).
2. the refrigerating unit of isothermal normalizing furnace according to claim 1, is characterized in that: described cooling room (1) bottom is provided with frequency conversion fan (4), and frequency conversion fan (4) is connected with air channel (3) through cooling room (1) blast inlet.
3. the refrigerating unit of isothermal normalizing furnace according to claim 1 and 2, is characterized in that: the inwall of described cooling room (1) is provided with infrared thermometer (5).
4. the refrigerating unit of isothermal normalizing furnace according to claim 3, is characterized in that: the outside of described cooling room (1) is provided with variable-frequence governor (6).
5. the refrigerating unit of isothermal normalizing furnace according to claim 4, is characterized in that: between described exhausting blower fan (2) and air channel (3), be provided with the regulated valve (7) for regulating air quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616318.8A CN103627860A (en) | 2013-11-29 | 2013-11-29 | Cooling device of isothermal normalizing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616318.8A CN103627860A (en) | 2013-11-29 | 2013-11-29 | Cooling device of isothermal normalizing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103627860A true CN103627860A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310616318.8A Pending CN103627860A (en) | 2013-11-29 | 2013-11-29 | Cooling device of isothermal normalizing furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN103627860A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911307A (en) * | 2015-05-08 | 2015-09-16 | 湖州华虹工业炉有限公司 | Mesh belt normalizing furnace |
| CN105132636A (en) * | 2015-10-12 | 2015-12-09 | 安庆市振发汽车锻件有限责任公司 | Cooling device special for shaft isothermal normalizing |
| CN111534669A (en) * | 2020-06-16 | 2020-08-14 | 宝钢特钢韶关有限公司 | Method for machining gear part from round gear steel and gear part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285298Y (en) * | 1996-09-07 | 1998-07-01 | 吉林工学院高技术产品研制厂 | Cooling device used in metal heat treatment equipment |
| CN202830086U (en) * | 2012-10-12 | 2013-03-27 | 爱协林天捷热处理系统（唐山）有限公司 | Air cooling device for isothermal normalizing furnace |
| CN202925061U (en) * | 2012-11-12 | 2013-05-08 | 南京年达炉业科技有限公司 | Intensive cooling chamber |
-
2013
- 2013-11-29 CN CN201310616318.8A patent/CN103627860A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285298Y (en) * | 1996-09-07 | 1998-07-01 | 吉林工学院高技术产品研制厂 | Cooling device used in metal heat treatment equipment |
| CN202830086U (en) * | 2012-10-12 | 2013-03-27 | 爱协林天捷热处理系统（唐山）有限公司 | Air cooling device for isothermal normalizing furnace |
| CN202925061U (en) * | 2012-11-12 | 2013-05-08 | 南京年达炉业科技有限公司 | Intensive cooling chamber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911307A (en) * | 2015-05-08 | 2015-09-16 | 湖州华虹工业炉有限公司 | Mesh belt normalizing furnace |
| CN105132636A (en) * | 2015-10-12 | 2015-12-09 | 安庆市振发汽车锻件有限责任公司 | Cooling device special for shaft isothermal normalizing |
| CN111534669A (en) * | 2020-06-16 | 2020-08-14 | 宝钢特钢韶关有限公司 | Method for machining gear part from round gear steel and gear part |
| CN111534669B (en) * | 2020-06-16 | 2021-08-03 | 宝钢特钢韶关有限公司 | Method for machining gear part from round gear steel and gear part |
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Application publication date: 20140312 |