CN106801136B - Water mist cooling method after heat treatment of wheels - Google Patents
Water mist cooling method after heat treatment of wheels Download PDFInfo
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- CN106801136B CN106801136B CN201710194575.5A CN201710194575A CN106801136B CN 106801136 B CN106801136 B CN 106801136B CN 201710194575 A CN201710194575 A CN 201710194575A CN 106801136 B CN106801136 B CN 106801136B
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- cooling
- water
- cooling chamber
- path
- temperature
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- 238000001816 cooling Methods 0.000 title claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000003595 mist Substances 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000010926 purge Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The water mist cooling method after the heat treatment of the wheels comprises three working procedures of high-temperature cooling, low-temperature cooling and air knife purging. The length of the cooling chamber in the high-temperature cooling process is 8m, the water pressure of the water pump is 6-7MPa, the length of the cooling chamber in the low-temperature cooling process is 7m, and the pressure of the water pump is 5-6MPa. Two cooling pipelines are respectively arranged on two sides of the cooling chamber, the first path is 100-200mm above the roller way, and the second path is 380-420mm above the roller way; and 30-35 atomizing cooling nozzles are uniformly distributed on each path of cooling pipe, wherein the model number of the atomizing nozzles is 5010. The length of the air knife blowing procedure is 4m. The blowing wind power of the air knife is provided by a centrifugal fan, and the power of the centrifugal fan is 1.8kW. And a condensing pipe is arranged above the cooling chamber and is positioned between the ventilation opening and the cooling fan. The cooling chamber is provided with 12 cooling fans, the power is 180W, the cooling fans work to generate cold air, the water mist generated in the work is condensed into water drops, and the water drops are filtered by the recovery device and the filter vat and recycled.
Description
Technical Field
The invention relates to a heat treatment cooling method for a wheel.
Background
In the manufacture of low-pressure aluminum alloy wheels, a thermal process is widely and widely used, and the wheels directly enter a thermal treatment process after low-pressure casting so as to achieve the purposes of saving energy consumption and reducing dimensional deformation. In the heat inlet process, the temperature reduction and cooling after the heat treatment of the wheels are mainly carried out by water spraying, and the heat treatment device is characterized by large cooling intensity, high efficiency, obvious defects, high energy consumption, water residue after the water spraying, high failure rate of water removing equipment and the like.
Water mist cooling can significantly improve cooling efficiency. Taking 1 kg of water as an example, the temperature is raised from 20 ℃ to 100 ℃, the absorbed heat is 336kJ; whereas water at the same temperature changes to a gaseous state, it is required to absorb 2260 and kJ heat by a factor of 7.
At present, the water mist cooling is mainly used in the fields of environmental cooling, dust fall, humidification and the like. Water mist cooling is also practiced for mold cooling and iron casting cooling, but cooling of the wheels after heat treatment has not been studied.
Disclosure of Invention
The invention provides a process for cooling an aluminum wheel subjected to heat treatment by water mist.
The technical scheme of the invention is as follows: the water mist cooling method after the heat treatment of the wheels comprises three working procedures of high-temperature cooling, low-temperature cooling and air knife purging.
The length of the cooling chamber in the high-temperature cooling process is 8m, the water pressure of the water pump is 6-7MPa, the length of the cooling chamber in the low-temperature cooling process is 7m, and the pressure of the water pump is 5-6MPa.
Two cooling pipelines are respectively arranged on two sides of the cooling chamber, the first path is 100-200mm above the roller way, and the second path is 380-420mm above the roller way; and 30-35 atomizing cooling nozzles are uniformly distributed on each path of cooling pipe, wherein the model number of the atomizing nozzles is 5010.
The length of the air knife blowing procedure is 4m. The blowing wind power of the air knife is provided by a centrifugal fan, and the power of the centrifugal fan is 1.8kW.
And a condensing pipe is arranged above the cooling chamber and is positioned between the ventilation opening and the cooling fan. The cooling chamber is provided with 12 cooling fans, the power is 180W, the cooling fans work to generate cold air, the water mist generated in the work is condensed into water drops, and the water drops are filtered by the recovery device and the filter vat and recycled.
According to the process, the temperature of the heat blank at 150 ℃ after heat treatment is reduced to 50 ℃, and under the conditions that no water is accumulated on the surface and X-ray inspection is met, the total power consumption is 9-10KW/h, water consumption is 700-800L/h, and water needs to be replenished for 1-2T per day. In contrast, the traditional water spray cooling requires 120KW/h of electricity consumption, the water consumption reaches 60T/h, and the water supply is 10-20T per day.
Drawings
FIG. 1 shows a cooling chamber used in the method for cooling water mist after heat treatment of a wheel according to the present invention.
In the figure: 1-cooling at high temperature; 2-cooling at low temperature and blowing by a 3-air knife.
Detailed Description
The water mist cooling method after the heat treatment of the wheels comprises three working procedures of high-temperature cooling, low-temperature cooling and air knife purging.
The length of the cooling chamber in the high-temperature cooling process is 8m, the water pressure of the water pump is 6-7MPa, the length of the cooling chamber in the low-temperature cooling process is 7m, and the pressure of the water pump is 5-6MPa.
Two cooling pipelines are respectively arranged on two sides of the cooling chamber, the first path is 100-200mm above the roller way, and the second path is 380-420mm above the roller way; and 30-35 atomizing cooling nozzles are uniformly distributed on each path of cooling pipe, wherein the model number of the atomizing nozzles is 5010.
The length of the air knife blowing procedure is 4m. The blowing wind power of the air knife is provided by a centrifugal fan, and the power of the centrifugal fan is 1.8kW.
And a condensing pipe is arranged above the cooling chamber and is positioned between the ventilation opening and the cooling fan. The cooling chamber is provided with 12 cooling fans, the power is 180W, the cooling fans work to generate cold air, the water mist generated in the work is condensed into water drops, and the water drops are filtered by the recovery device and the filter vat and recycled.
According to the process, the temperature of the heat blank at 150 ℃ after heat treatment is reduced to 50 ℃, and under the conditions that no water is accumulated on the surface and X-ray inspection is met, the total power consumption is 9-10KW/h, water consumption is 700-800L/h, and water needs to be replenished for 1-2T per day. In contrast, the traditional water spray cooling requires 120KW/h of electricity consumption, the water consumption reaches 60T/h, and the water supply is 10-20T per day.
When the workpiece enters the cooling chamber, water reaches the water mist nozzle under the pressure of the water pump, the workpiece is cooled through atomization cooling effect, the water mist absorbs heat and evaporates and is absorbed into the condensing pipe above the partition plate, the condensing pipe is positioned between the cooling fan and the ventilation opening, the water mist is condensed into water drops due to the cooling effect of the fan and falls back into the water collecting device below the working chamber, and the water drops enter the water pump again for recycling after deslagging by the filter screen and filtering treatment by the filter.
Claims (1)
1. The water mist cooling method after the heat treatment of the wheels is characterized by comprising the following steps of: comprises three working procedures of high-temperature cooling, low-temperature cooling and air knife purging; the length of the cooling chamber in the high-temperature cooling process is 8m, the water pressure of the water pump is 6-7MPa, the length of the cooling chamber in the low-temperature cooling process is 7m, and the pressure of the water pump is 5-6MPa;
two cooling pipelines are respectively arranged on two sides of the cooling chamber, the first path is 100-200mm above the roller way, and the second path is 380-420mm above the roller way; 30-35 atomizing cooling nozzles are uniformly distributed on each path of cooling pipe, and the model of each atomizing nozzle is 5010; the length of the air knife blowing procedure is 4m; the blowing wind power of the air knife is provided by a centrifugal fan, and the power of the centrifugal fan is 1.8kW; a condensing pipe is arranged above the cooling chamber and is positioned between the ventilation opening and the cooling fan; the cooling chamber is provided with 12 cooling fans, the power is 180W, the cooling fans work to generate cold air, the water mist generated in the work is condensed into water drops, and the water drops are filtered by the recovery device and the filter vat and recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194575.5A CN106801136B (en) | 2017-03-29 | 2017-03-29 | Water mist cooling method after heat treatment of wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194575.5A CN106801136B (en) | 2017-03-29 | 2017-03-29 | Water mist cooling method after heat treatment of wheels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801136A CN106801136A (en) | 2017-06-06 |
| CN106801136B true CN106801136B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194575.5A Active CN106801136B (en) | 2017-03-29 | 2017-03-29 | Water mist cooling method after heat treatment of wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106801136B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642264A (en) * | 2018-03-29 | 2018-10-12 | 马鞍山钢铁股份有限公司 | A kind of annealing device and its heat treatment method improving wheel strength |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530137U (en) * | 2012-04-26 | 2012-11-14 | 广亚铝业有限公司 | Online quenching device for aluminum alloy extrusion profiles |
| CN103331430A (en) * | 2013-07-02 | 2013-10-02 | 无锡戴卡轮毂制造有限公司 | Method for cooling die of low-pressure cast aluminum alloy hub in water-mist mode |
| CN104673980A (en) * | 2015-03-18 | 2015-06-03 | 苏州明志科技有限公司 | Quenching device for thermal aluminum alloy treatment |
| CN105567921A (en) * | 2016-02-01 | 2016-05-11 | 中国重型机械研究院股份公司 | Three-section type aluminum profile quenching and cooling device and method |
| CN205473889U (en) * | 2016-02-01 | 2016-08-17 | 中国重型机械研究院股份公司 | Syllogic aluminium alloy quenching device |
-
2017
- 2017-03-29 CN CN201710194575.5A patent/CN106801136B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530137U (en) * | 2012-04-26 | 2012-11-14 | 广亚铝业有限公司 | Online quenching device for aluminum alloy extrusion profiles |
| CN103331430A (en) * | 2013-07-02 | 2013-10-02 | 无锡戴卡轮毂制造有限公司 | Method for cooling die of low-pressure cast aluminum alloy hub in water-mist mode |
| CN104673980A (en) * | 2015-03-18 | 2015-06-03 | 苏州明志科技有限公司 | Quenching device for thermal aluminum alloy treatment |
| CN105567921A (en) * | 2016-02-01 | 2016-05-11 | 中国重型机械研究院股份公司 | Three-section type aluminum profile quenching and cooling device and method |
| CN205473889U (en) * | 2016-02-01 | 2016-08-17 | 中国重型机械研究院股份公司 | Syllogic aluminium alloy quenching device |
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| Publication number | Publication date |
|---|---|
| CN106801136A (en) | 2017-06-06 |
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