CN101906527A - Heat processing furnace - Google Patents
Heat processing furnace Download PDFInfo
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- CN101906527A CN101906527A CN2010101964951A CN201010196495A CN101906527A CN 101906527 A CN101906527 A CN 101906527A CN 2010101964951 A CN2010101964951 A CN 2010101964951A CN 201010196495 A CN201010196495 A CN 201010196495A CN 101906527 A CN101906527 A CN 101906527A
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- space
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- siege
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- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 230000002093 peripheral effect Effects 0.000 claims description 46
- 238000002791 soaking Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 30
- 239000004576 sand Substances 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The invention provides a heat processing furnace capable of improving heating efficiency. The heat processing furnace has a furnace body 10, a furnace hearth 12, an air feeding device 14, a cylindrical bulkhead 16, a shelf 18, a directing part 20, a heating device 22, and an allocation part 24. The furnace hearth 12 rotates in the horizontal direction. The cylindrical bulkhead 16 divides the space between the air feeding device 14 and the furnace hearth 12 into a midsection space 50 and an external circumstance part space 52. The midsection space 50 becomes the suction mouth of the gas of the air feeding device. The wind exhausted from the air feeding device 14 is loaded in and passes through the external circumstance part space 52. The shelf 18 is used for loading the workpiece. The shelf 18 rotates in the external circumstance part space 52 along with the rotation of the furnace hearth 12. The directing part 20 guides wind from the external circumstance part space 52 to the midsection space 50. A heating device 22 heats the wind. An allocation part allocates the wind heated up by the heating device 22.
Description
Technical field
The present invention relates to heat treatment furnace, especially relate to the heat treatment furnace that can improve thermo-efficiency.
Background technology
Patent documentation 1 discloses continuous heat treating furnace.This continuous heat treating furnace possesses the axial fan that is provided with on the top of body of heater, be arranged on heating unit below the axial fan, be arranged on slit plate below the heating unit, be arranged on the beam (being hung with workpiece on beam) below the slit plate.According to the continuous heat treating furnace of record in the patent documentation 1, economic manpower can be boosted productivity, and can make the quality of workpiece even, and can improve thermo-efficiency.
Patent documentation 2 discloses recirculation furnace.This recirculation furnace possesses: the body of heater with thermal source and rotation siege; The cyclic mounting table; Axial fan; Ring bulkhead.Perisporium at upper edge, the position body of heater that leans on outer circumferential side that rotates siege possesses mounting table.Mounting workpiece on mounting table, this workpiece can be moved into along the radiation direction and take out of.On mounting table, cycling stream can pass through along the vertical direction.Near the top of body of heater, possesses axial fan.Axial fan sprays the peripheral direction of hot gas from self towards the central part suction and towards the rotation siege.Ring bulkhead will be separated into outer circumferential side zone that mounting table is set and than territory, interior side lateral areas in the inner part, this outer circumferential side zone in the stove.Near the path of ring bulkhead partition loops stream counter-rotating near the rotation siege of body of heater and top.According to the recirculation furnace that patent documentation 2 is put down in writing, recirculation still is small-sized and can increase treatment capacity.
Patent documentation 1: Japanese kokai publication sho 51-131408 communique
Patent documentation 2: TOHKEMY 2004-257658 communique
Yet in patent documentation 1 and patent documentation 2 disclosed continuous heat treating furnaces, also there is room for improvement in thermo-efficiency.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is to provide a kind of heat treatment furnace that can improve thermo-efficiency.
With reference to description of drawings heat treatment furnace of the present invention.In addition, the symbol below among the use figure is in order to help to understand the content of invention, not to be limited in the scope of diagramatic content.
According to the present invention, heat treatment furnace possesses body of heater 10, siege 12, air-supply arrangement 14, cylindrical bulkhead 16, shelf 18.Body of heater 10 has the opening 40,42 of band door.The opening 40,42 of band door is used for taking out puts into workpiece 100.Siege 12 is configured in body of heater 10 bottoms.Siege 12 rotates in the horizontal direction.Air-supply arrangement 14 is configured in the inside of body of heater 10 and the top of siege 12.Cylindrical bulkhead 16 is configured between the inside and air-supply arrangement 14 and siege 12 of body of heater 10.Shelf 18 is installed on the siege 12.Shelf 18 is used for the mounting workpiece.Space between air-supply arrangement 14 and the siege 12 is divided into the space 50 of middle body and the space 52 of outer peripheral portion by cylindrical bulkhead 16.The space 50 of middle body constitutes the suction port towards the gas of air-supply arrangement 14.Send into and pass through the space 52 of outer peripheral portion from the wind of air-supply arrangement 14 discharges.Shelf 18 is installed on the siege 12 in the modes in the space 52 that is configured in outer peripheral portion, and is accompanied by the rotation of siege 12 and circles round in the space 52 of outer peripheral portion.Dispose on the position below cylindrical bulkhead 16 wind in the space 52 of outer peripheral portion is directed to guide portion 20 in the space 50 of middle body.On the position of leaning on than cylindrical bulkhead 16, dispose the heating unit 22 that the wind of discharging from air-supply arrangement 14 is heated.Dispose dispenser 24 on the position that ratio shelf 18 in the space 52 of outer peripheral portion leans on, this dispenser 24 is distributed the wind of heating unit 22 heating, so that the part that becomes the heating zone in the space 52 of outer peripheral portion 80 is supplied with than the part that becomes the soaking zone 82 more heat in the space 52 of outer peripheral portion.
The wind directed section 20 of having passed through the space 52 of outer peripheral portion guides to the space 50 of middle body.Air-supply arrangement 14 is from the space 50 suction gases of middle body and to 52 air-supplies of the space of outer peripheral portion.22 pairs of these wind of heating unit heat.Dispenser 24 is distributed the wind of heating unit 22 heating, so that the part 80 that becomes the heating zone is supplied with than part 82 more heat that become the soaking zone.During this time, shelf 18 is accompanied by the rotation of siege 12 and circles round in the space 52 of outer peripheral portion.Thus, via wind the workpiece 100 that is positioned on the shelf 18 is applied heat.In the part 80 that becomes the heating zone, impose on the heat of workpiece 100, more than the heat that in the part 82 that becomes the soaking zone, imposes on workpiece 100.Because more heat after when applying than the temperature that reaches regulation to the low-temperature workpieces 100 after the inside that just enters into body of heater 10, therefore the situation of the shortage of heat that in the part 80 that becomes the heating zone, consumes and becoming situation about in the part 82 of soaking zone workpiece 100 being heated to more than the necessary degree and reduce for temperature rises.Its result, thermo-efficiency uprises.
In addition, above-mentioned dispenser 24 preferably has the first wind supply unit 62 and the second wind supply unit 64.The first wind supply unit 62 is configured in the top of the part 80 that becomes the heating zone.The second wind supply unit 64 is configured in the top of the part 82 that becomes the soaking zone.The feed rate of the wind of the time per unit of the second wind supply unit, 64 to the first wind supply units 62 is few.
Perhaps, the preferred first above-mentioned wind supply unit 62 is tool foraminous parts.In this case, the second wind supply unit 64 is parts port area and that lack than the first wind supply unit 62 with hole and hole.
Perhaps, preferred, above-mentioned dispenser 24 also has parts 66,68, these parts 66,68 in the space 52 of outer peripheral portion, be configured in the band door opening 40,42 above.In this case, configured parts 66,68 above the opening 40,42 of band door, with and the inner peripheral surface of body of heater 10 between form the gap mode be configured.
By forming the gap, in the inner peripheral surface of body of heater 10, on the part that is provided with opening 40,42, form gas curtain.This gas curtain suppresses the intrusion from the outer gas of opening 40,42.Owing to suppress the intrusion of outer gas, so the temperature decline of the door of opening 40,42 when opening and closing tails off.Tail off because temperature descends, so the loss of a heat that switching causes of opening 40,42 tails off.Because thermosteresis tails off, therefore can further improve thermo-efficiency.
As mentioned above, according to heat treatment furnace of the present invention, can improve thermo-efficiency.
Description of drawings
Fig. 1 is the vertical cross section of the heat treatment furnace of embodiments of the present invention.
Fig. 2 is the horizontal sectional drawing of the heat treatment furnace of embodiments of the present invention.
Fig. 3 is the concept map of configuration in each interval of internal space that the body of heater of embodiments of the present invention is shown.
Nomenclature:
10 bodies of heater
12 sieges
14 air-supply arrangements
16 cylindrical bulkhead
18 shelves
20 guide portion
22 heating units
24 dispenser
26 suck switchboard
28 sand are removed plate
40 inlet openings
42 exit openings
The space of 50 middle bodies
The space of 52 outer peripheral portions
62 first wind supply units
64 second wind supply units
66 first shielding portions
68 second shielding portions
80 first intervals
82 second intervals
84 the 3rd intervals
86 the 4th intervals
100 workpiece
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.In the following description, to the additional prosign of same parts.Its title and function are also identical.Therefore, do not repeat it is elaborated.
With reference to Fig. 1 and Fig. 2, the structure of the heat treatment furnace of present embodiment is described.The heat treatment furnace of present embodiment possesses body of heater 10, siege 12, air-supply arrangement 14, cylindrical bulkhead 16, shelf 18, guide portion 20, heating unit 22, dispenser 24, sucks switchboard 26, sand is removed plate 28.
Body of heater 10 has inlet opening 40 and exit opening 42.Inlet opening 40 and exit opening 42 are separately installed with door.Which floor the quantity of described door is provided with according to shelf 18 and determines.
The space 52 of outer peripheral portion is divided into first interval 80, second interval 82, the 3rd interval 84, the 4th interval 86.First interval 80 is to be configured in than inlet opening 40 more by the interval of the position of the sense of rotation side of siege 12.In the present embodiment, this part is the heating zone.Second interval 82 is end and first interval 80 successive intervals of sense of rotation one side of the siege 12 in the both ends in first interval 80.In the present embodiment, this part is the soaking zone.In the present embodiment, the terminal portions in second interval 82 and exit opening 42 relative to.The 3rd interval 84 is end and second interval 82 successive intervals of sense of rotation one side of the siege 12 in the both ends in second interval 82.The position in the 3rd interval 84 is between inlet opening 40 and exit opening 42.The 4th interval 86 be relative with inlet opening 40 to the interval.The end of sense of rotation one side of the siege 12 of the 4th interval 86 in the two ends in the 3rd interval 84 and the 3rd interval 84 are continuous.
The other parts of the heat treatment furnace of present embodiment are described referring again to Fig. 1 and Fig. 2.Shelf 18 is installed on the siege 12.Mounting workpiece 100 on shelf 18.Thus, shelf 18 rotates in the horizontal direction with siege 12.In the present embodiment, shelf 18 is provided with six layers.
Position above dispenser 24 is configured in the space 52 of outer peripheral portion and leans on than shelf 18.Wind after 22 heating of 24 pairs of heating units of dispenser distributes.The wind of heating unit 22 heating is allocated to, and is more than what supply with to second interval 82 to first interval 80 heat of supplying with.
Describe dispenser 24 below in detail.From Fig. 1 and Fig. 2 as can be known, dispenser 24 is mounted to, and interior week of body of heater 10 between leave small gap.Therefore, in dispenser 24, the part that is configured in the top top of opening 40 (further be inlet) in the 4th interval 86 be configured to and the inner peripheral surface of body of heater 10 between form the gap.Thus, the part of the wind sent of air-supply arrangement 14 descends by the inner peripheral surface of body of heater 10 and the gap between the dispenser 24.
Sucking switchboard 26 is installed on the siege 12 in the mode under the space 52 that is configured in outer peripheral portion.Sand is removed plate 28 and also is installed on the siege 12.Sand is removed the inside that plate 28 is installed in guide portion 20.Sand is removed plate 28 and is filtered from wind in the inside of guide portion 20 and shake out.The sand that filters out is discharged from the relief outlet of the bottom that is arranged on siege 12.
Based on above structure, the using method of the heat treatment furnace of present embodiment is described.
Open the door of inlet opening 40, use suitable anchor clamps, workpiece 100 is inserted into the inside of body of heater 10 from the outside of heat treatment furnace.As mentioned above, the inner peripheral surface at body of heater 10 is formed with gas curtain on the whole.By this gas curtain, be suppressed at when opening outer gas cut and go into.
When inserting workpiece 100, close the door of inlet opening 40.Siege 12 from above rotate in the counterclockwise direction when observing the heat treatment furnace of present embodiment.When siege 12 rotations, shelf 18 also rotates.When shelf 18 rotations, mounting workpiece 100 thereon also rotates.Thus, workpiece 100 moves successively from the heating zone to the soaking zone.
In dispenser 24, the first wind supply unit 62 is relative to the heating zone, therefore more wind contact workpiece 100.Thus, workpiece 100 is heated sharp.If by the heating zone, then workpiece 100 enters the soaking zone.Relative with the soaking zone to be the second wind supply unit 64 in the dispenser 24.Wind descends from the second wind supply unit 64 hardly.Thus, the temperature of soaking zone almost remains constant.Afterwards, workpiece 100 enters the 3rd interval 84.So, the door of exit opening 42 is opened, and by suitable anchor clamps, takes out workpiece 100 from the inside of body of heater 10.Thus, the thermal treatment to workpiece 100 finishes.In addition, as seen from the above description, in the present embodiment, be formed with gas curtain on the whole at the inner peripheral surface of body of heater 10.By this gas curtain, can be suppressed at when opening outer gas cut and go into.
As mentioned above, according to the heat treatment furnace of present embodiment, can in a stove, heat-treat.At this moment, owing to distribute heat,, also can not distribute heat lavishly even therefore do not possess a plurality of thermals source via dispenser 24.And, by simple structure, can will be divided into heating zone and soaking zone in the stove.Moreover therefore the heat treatment furnace of present embodiment can suppress the intrusion of outer gas owing to the inner peripheral surface at body of heater 10 is formed with gas curtain.Thus, thermosteresis tails off, and therefore can reduce the energy that thermal treatment expends.
About this point, be specifically described.Therefore patent documentation 1 disclosed continuous heat treating furnace expends heat because the beam that hangs workpiece is heated.Therefore, thermosteresis becomes big.Patent documentation 2 disclosed recirculation furnaces are when opening and closing the door of inlet or outlet, and the intrusion of outer gas can make the temperature in the stove descend.Because the temperature in the stove descends, so the temperature of the workpiece in the heating zone rises not smooth.The temperature of the workpiece in the soaking zone can't reach predetermined temperature.So, can cause detrimentally affect to the quality of workpiece.
With respect to this, the heat treatment furnace of present embodiment is owing to be positioned in workpiece 100 on the shelf 18, and therefore when in a single day the temperature of shelf 18 raise, rising of temperature of shelf 18 can expend heat hardly after that.The heat treatment furnace of present embodiment forms gas curtain by wind is blown off from the inner peripheral surface of body of heater 10 and the gap between the dispenser 24.Owing to be formed with gas curtain, therefore can suppress the intrusion of outer gas.Owing to can suppress the intrusion of outer gas, therefore because the intrusion of outer gas causes this situation minimizing that descends of the interior temperature of stove.Because the situation that the temperature in the stove descends reduces, therefore can suppress thermosteresis, and, can keep the quality of workpiece 100 well.
In addition, in the heat treatment furnace of present embodiment, sand is removed the inside that plate 28 is installed in guide portion 20.Because sand removes the inside that plate 28 is installed in guide portion 20, even therefore under the residual situation that foundry goods sand arranged on the workpiece 100, also can be from the wind of the internal recycling of body of heater 10, removing shakeout.Owing to remove shakeout, therefore can reduce the situation of device in this sand abrasion stove etc.
Moreover the heat treatment furnace of present embodiment becomes that wind rises and sucks the structure of these wind by air-supply arrangement 14 in the space 50 of middle body.Be this kind structure owing to form, therefore can access the effect that is difficult to produce wearing and tearing in the stove.Being difficult to produce wearing and tearing is because the cause of having removed sand from wind well.Removing shakeout well from wind is because the cause that descends under the effect of sand at gravity when rising in the space 50 of wind at middle body.
Whole aspects of this disclosed embodiment are illustrations.Certain scope of the present invention is not subjected to the restriction of above-mentioned embodiment, can carry out various design alterations in the scope that does not break away from purport of the present invention.
For example, also can replace burner and thermals source such as electric heater are installed as heating unit 22.Burner can be determined arbitrarily corresponding to the quantity of workpiece 100.
In addition, dispenser 24 also can replace the hole and have slit.Have, the first wind supply unit 62 of dispenser 24 and the second wind the supply unit 64 not only size of hole or slit are different, and the quantity of the hole of per unit area or slit also can be different again.
If needn't form gas curtain, then the periphery of dispenser 24 also can be close to the inner peripheral surface of body of heater 10.When forming gas curtain on the side in inlet opening 40 and exit opening 42 only, or only on inlet opening 40 and exit opening 42 during the formation gas curtain, the structure of dispenser 24 also can be as described below.Its structure is as follows: in the parts that constitute dispenser 24, on the parts that are disposed at the position that will form gas curtain otch is set.The position that otch is set is the position that the inner peripheral surface with body of heater 10 joins.Thus, wind only flows to the position that will form gas curtain along the inner peripheral surface of body of heater 10.
In addition, dispenser 24 also can not be many plates but the works of case shape for example.In this case, the parts of formation dispenser 24 also can replace the hole and have the pipe that lets in air.
In addition, the number of plies of shelf 18 does not limit especially.The number of plies of shelf 18 can be below 5 layers, also can be more than 7 layers.The quantity that is installed in the door on inlet opening 40 and the exit opening 42 does not respectively limit especially yet.For example, also can big door be installed in the mode that workpiece 100 is come in and gone out from two-layer shelf 18.In this case, the quantity of door reduces.
In addition, can on first shielding portion 66 and second shielding portion 68, the hole be set yet.
Claims (4)
1. heat treatment furnace possesses:
Body of heater, it has the opening that is used to take out the band door of putting into workpiece;
Siege, it is configured in described body of heater bottom, and rotation in the horizontal direction;
Air-supply arrangement, it is configured in the top of described body of heater inside and described siege;
Cylindrical bulkhead, it is configured between described body of heater inside and described air-supply arrangement and the described siege;
Shelf, it is installed on the described siege, is used for the mounting workpiece, it is characterized in that,
Space between described air-supply arrangement and the described siege is divided into the space of middle body and the space of outer peripheral portion by described cylindrical bulkhead, the space of described middle body constitutes the suction port towards the gas of described air-supply arrangement, and, send into and pass through the space of described outer peripheral portion from the wind of described air-supply arrangement discharge
Described shelf is installed on the described siege in the mode in the space that is configured in described outer peripheral portion, and follows the rotation of described siege and circle round in the space of described outer peripheral portion,
Dispose on the position below described cylindrical bulkhead the wind in the space of described outer peripheral portion be directed to guide portion in the space of described middle body,
On the position of leaning on than described cylindrical bulkhead, dispose the heating unit that the wind of discharging from described air-supply arrangement is heated,
Dispose dispenser on the position of in described outer peripheral portion, leaning on than described shelf, this dispenser is distributed the described wind of described heating unit heating, so that the part that becomes the heating zone in the space of described outer peripheral portion is supplied with than the part more heat that becomes the soaking zone in the space of described outer peripheral portion.
2. heat treatment furnace according to claim 1 is characterized in that,
Described dispenser has:
The first wind supply unit, it is configured in the top of the part that becomes described heating zone;
The second wind supply unit, it is configured in the top of the part that becomes described soaking zone, lacks than the feed rate of the described wind of the time per unit of the described first wind supply unit.
3. heat treatment furnace according to claim 2 is characterized in that,
The described first wind supply unit is tool foraminous parts,
The described second wind supply unit is parts port area and that lack than the described first wind supply unit with hole and described hole.
4. heat treatment furnace according to claim 2 is characterized in that,
Described dispenser also has the parts of the opening top of the described band door in the space that is configured in described outer peripheral portion,
Configured parts above the opening of described band door, with and the inner peripheral surface of described body of heater between form the gap mode be configured.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009152942A JP4736000B2 (en) | 2009-06-04 | 2009-06-04 | Heat treatment furnace |
| JP2009-152942 | 2009-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101906527A true CN101906527A (en) | 2010-12-08 |
| CN101906527B CN101906527B (en) | 2013-06-19 |
Family
ID=43262111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010196495 Expired - Fee Related CN101906527B (en) | 2009-06-04 | 2010-06-03 | Heat processing furnace |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4736000B2 (en) |
| CN (1) | CN101906527B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167690A1 (en) * | 2011-06-04 | 2012-12-13 | Zhou Wei | Rotational full automatic aluminum rod heating furnace |
| CN103348021A (en) * | 2012-02-08 | 2013-10-09 | 株式会社正英制作所 | Heat treatment furnace |
| CN111094884A (en) * | 2017-09-13 | 2020-05-01 | 坂本仁 | Heat treatment furnace |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383187B (en) * | 2012-05-03 | 2015-05-20 | 北京低碳清洁能源研究所 | Drying furnace or pyrolyzing furnace with rotary material bed |
| CN104911302A (en) * | 2014-12-06 | 2015-09-16 | 高鸿 | Horizontal multi-layer double circulating air rotary multifunctional metal workpiece heat treatment furnace structure |
| CN104817084B (en) * | 2015-03-30 | 2017-04-26 | 神雾环保技术股份有限公司 | calcium carbide smelting furnace |
| JP7235609B2 (en) * | 2019-07-02 | 2023-03-08 | 三建産業株式会社 | rotary heat treatment furnace |
| CN110205471B (en) * | 2019-07-02 | 2024-06-18 | 南京长江工业炉科技集团有限公司 | Multilayer multi-drive rotary heating furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226674A (en) * | 1997-11-14 | 1999-08-25 | 桑拉尔奥尼克斯公司 | Convection-radiation system for heat treatment of continuous strip |
| JP2004257658A (en) * | 2003-02-26 | 2004-09-16 | Nippon Furnace Kogyo Kaisha Ltd | Hot air circulation furnace |
| JP2005226879A (en) * | 2004-02-10 | 2005-08-25 | Kida Seiko Kk | Baking apparatus |
| CN101522936A (en) * | 2006-10-13 | 2009-09-02 | 新日本制铁株式会社 | Apparatus and process for producing steel sheet plated by hot dipping with alloyed zinc |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4919602B2 (en) * | 2005-01-20 | 2012-04-18 | トヨタ自動車株式会社 | Heat treatment furnace and heat treatment equipment provided with the same |
-
2009
- 2009-06-04 JP JP2009152942A patent/JP4736000B2/en active Active
-
2010
- 2010-06-03 CN CN 201010196495 patent/CN101906527B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226674A (en) * | 1997-11-14 | 1999-08-25 | 桑拉尔奥尼克斯公司 | Convection-radiation system for heat treatment of continuous strip |
| JP2004257658A (en) * | 2003-02-26 | 2004-09-16 | Nippon Furnace Kogyo Kaisha Ltd | Hot air circulation furnace |
| JP2005226879A (en) * | 2004-02-10 | 2005-08-25 | Kida Seiko Kk | Baking apparatus |
| CN101522936A (en) * | 2006-10-13 | 2009-09-02 | 新日本制铁株式会社 | Apparatus and process for producing steel sheet plated by hot dipping with alloyed zinc |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167690A1 (en) * | 2011-06-04 | 2012-12-13 | Zhou Wei | Rotational full automatic aluminum rod heating furnace |
| CN103348021A (en) * | 2012-02-08 | 2013-10-09 | 株式会社正英制作所 | Heat treatment furnace |
| CN111094884A (en) * | 2017-09-13 | 2020-05-01 | 坂本仁 | Heat treatment furnace |
| CN111094884B (en) * | 2017-09-13 | 2021-12-21 | 坂本仁 | Heat treatment furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4736000B2 (en) | 2011-07-27 |
| JP2010281555A (en) | 2010-12-16 |
| CN101906527B (en) | 2013-06-19 |
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Owner name: SHOEI MANUFACTURING CO., LTD. Free format text: FORMER OWNER: IKS COMPANY, INC. Effective date: 20110812 |
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Application publication date: 20101208 Assignee: Shoei Industrial Heating Equipment (Shanghai) Co., Ltd. Assignor: Shoei Mfg. Co., Ltd. Contract record no.: 2014990000580 Denomination of invention: Anti-dust apparatus in roller-hearth-type heat treatment furnace Granted publication date: 20130619 License type: Exclusive License Record date: 20140722 |
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Granted publication date: 20130619 Termination date: 20210603 |