WO2004038315A1 - Four continu - Google Patents

Four continu Download PDF

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Publication number
WO2004038315A1
WO2004038315A1 PCT/JP2003/013516 JP0313516W WO2004038315A1 WO 2004038315 A1 WO2004038315 A1 WO 2004038315A1 JP 0313516 W JP0313516 W JP 0313516W WO 2004038315 A1 WO2004038315 A1 WO 2004038315A1
Authority
WO
WIPO (PCT)
Prior art keywords
furnace
firing furnace
firing
continuous firing
continuous
Prior art date
Application number
PCT/JP2003/013516
Other languages
English (en)
Japanese (ja)
Inventor
Tadanori Mizoguchi
Original Assignee
International Customer Service
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Customer Service filed Critical International Customer Service
Priority to AU2003277516A priority Critical patent/AU2003277516A1/en
Priority to EP03809452A priority patent/EP1607704A4/fr
Publication of WO2004038315A1 publication Critical patent/WO2004038315A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2469—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollable bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/007—Partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F27B2009/3027—Use of registers, partitions

Definitions

  • the present invention relates to a continuous firing furnace in which a plurality of firing furnaces united according to the amount of a molded article to be fired and the firing time are used in succession.
  • a first baking area, a second baking area, a first cooling area, a second cooling area, and a third cooling area are provided, and these areas are provided with a cooling air supply port, a parner, a residual heat air recovery port, and a gas exhaust port in the furnace.
  • a continuous firing furnace having a tunnel-shaped furnace body in which an appropriate heat curve is maintained by controlling the temperature of each region (see Japanese Patent No. 2859987 (see Japanese Patent Application Laid-Open No. 5-59987).
  • the continuous firing furnace described in Japanese Patent Application Laid-Open No. 6-82162 has a partition in the firing section, the partition does not move up and down to adjust the temperature inside the furnace, so that the partition The temperature is adjusted by a different structure regardless of the object. Further, in the present invention, the position of the aperture is not set so as to deviate from the opposing position of the opposing side wall so that the combustion gas is swirled and swirled to uniformly hit the molded product. On the other hand, in the continuous firing furnace described in Japanese Patent Application Laid-Open No. 5-172465, the temperature of the molded product is not adjusted by the movement of the partition wall itself, and the combustion gas is uniformly applied to the molded product. Not even a thing.
  • An object of the present invention is to solve the above-mentioned problems, and by continuously providing a sintering furnace unit, it is possible to produce a batch type, small to medium size, and even a large type. It is an object of the present invention to provide a continuous sintering furnace.
  • Another object of the present invention is to provide a continuous firing furnace in which not only a plurality of firing furnace units are connected but also a shielding plate is provided at a predetermined position in the furnace so that the firing temperature between the shielding plates can be adjusted.
  • Another object of the present invention is to arrange a wrench so as to deviate from a position facing each other on an opposing side wall so that a swirling flow of gas is generated in the sintering furnace ⁇ so that a molded article can be sintered substantially uniformly.
  • An object of the present invention is to provide a continuous firing furnace that can provide ceramic products.
  • the object of the present invention is, in particular, to move the firing furnace to a building, a house, a tunnel, a highway building site, to a place where incinerated ash or the like can be used for ceramic products, or to a customer's factory premises, and to move the furnace. It is an object of the present invention to provide a continuous firing furnace for finishing a heat treatment apparatus for ceramic electronic components used in automobiles and the like, in addition to ceramic products such as tiles, bricks, and exterior panels in place.
  • the present invention has been made in view of the above objects, and its gist is to control a firing furnace unit, a parner for injecting gas into the unit, and control of ignition of the gas of the parner, flame amount and time, and fire extinguishing.
  • a baking furnace comprising a control panel, wherein a plurality of baking furnace units of the baking furnace are connected via a shielding plate for controlling a temperature in the furnace, and at least a part of the plurality of baking furnace units is provided.
  • the burners are displaced from the positions facing each other at required locations on the opposing side walls of the respective firing furnace units, and the plurality of the continuous
  • the present invention relates to a detachable and movable continuous firing furnace characterized in that a transfer means passing through the firing furnace unit is installed.
  • a continuous firing furnace having a scale corresponding to the size, shape, amount, etc. of the molded product can be obtained.
  • Shielding plates were provided at required locations to enable temperature adjustment between each shielding plate.
  • a gas flame is uniformly applied to the molded product by the swirling flow, so that a better ceramic product can be obtained.
  • the corners of the sintering furnace are positioned so that the corners of the squeezing furnace deviate from the positions facing each other on the opposite side wall of the sintering furnace unit, a swirling flow can be forcibly generated in the unit. As a result, it is possible to irradiate the molded article with the flame substantially uniformly.
  • the continuous firing furnace can be transported and moved to a construction site such as a tunnel or the site of a customer's factory, so that ceramic electronic parts such as tiles and ceramic parts such as automobile parts can be moved in the same place.
  • a construction site such as a tunnel or the site of a customer's factory
  • ceramic electronic parts such as tiles and ceramic parts such as automobile parts can be moved in the same place.
  • the firing furnace is made movable, and the continuous firing furnace is used at a construction site such as a building. Since it can be fired, warehouses and transportation for storing these products in different locations can be omitted, and efficient and cost-effective ceramic products can be obtained.
  • the furnace body is formed into a substantially square cylindrical body including a pair of opposed side walls, one of the parner ports is provided at a position where the opposed position of each side wall is removed.
  • a total of two tubes are provided, and a force to turn the flame from the two wrench openings into a left or right swirling flow, two at each of the upper and lower positions excluding the opposing position of each side wall, a total of four, It is characterized in that the swirling flow of the upper and lower flames from the four wrench openings is turned leftward or rightward in the same direction, and is located at a position opposite to the above.
  • one opener is provided on each side wall of the substantially square tube of the furnace body, and if the opener is located in the vicinity of the lower right corner on one side wall, the open side wall may be located on the opposite side wall. Position the wrench inward near the lower right corner. With this position, the flames from each of the two corners turn to the left because the two lower corners are out of the opposite position.
  • the wrench opening on one side wall is near the upper right corner and the lower left corner, and on the opposite side wall is here Again, it is placed near the upper right corner and near the lower left corner.
  • a barnaro deviates from the opposing position on each opposing side wall, in other words, when seeing through the opposing side wall from one side wall side (since it is located near the upper right corner on each side wall), Flames are fired from the upper right corner (corner) of the side wall from the upper right corner (corner) to the opposing side wall, but the flame of the upper right corner (corner) of the other side is fired from the one side wall.
  • the flame is fired from the upper left corner on the opposite side to the upper left corner on the near side, and the flame turns left.
  • the flame from the two corners near the lower left corner of the side wall is also fired from one side wall to the opposite side wall, so that the inside of the furnace turns clockwise, contrary to the above.
  • the wrench opening is provided on the side wall in the vicinity of the upper right corner, facing inward.
  • the side walls are provided in the vicinity of the lower left corner toward the inside. However, if these are provided near the lower right corner, the flame will turn left inside the unit.
  • the corner at the corner of the side wall is designed so that the upper and lower flames are turned to the right or left by turning the upper and lower flames to the right and left, respectively. Others can also turn left.
  • the right half of the inside of the opposite side wall fires toward the opposite side wall.
  • the direction of the flame from the Pana port near the upper right corner of the opposing side wall is directed toward the inside of the left half of the side wall.
  • the shielding plate is moved laterally into the furnace so as not to hit the molded product in the furnace sent by the conveying means, and the height of the shielding plate is vertically increased in the furnace.
  • the temperature between the shield plates can be adjusted more finely.
  • the height of the shielding plate between firing furnaces is moved up and down manually or automatically by control from a control panel, and the time and temperature required for firing are controlled to desired values in relation to the transport means. By doing so, it is possible to obtain fast and uniform ceramic products.
  • the shielding plate of the present invention by moving the shielding plate of the present invention laterally into the furnace and vertically moving the shielding plate vertically from the outside of the furnace, heat leakage can be prevented by moving the shielding plate up and down from both sides of the furnace ceiling.
  • the shield plate is moved left and right in the furnace so as to be able to be removed so as not to hit the molded product sent by the transfer means.
  • the shielding plate is moved laterally in the furnace to the left and right, thereby facilitating the temperature adjustment in the furnace and the maintenance such as repair or replacement by pulling out the shielding plate from either the left or the right.
  • the above-mentioned shielding plate is divided into an upper stage and a lower stage above the conveying means, and the lower stage can be moved up and down or left and right.
  • the product can be baked so that it can be used in a variety of designs.
  • the conveying means is a heat-resistant roller which rotates on bearings, and a burner is arranged so as to bake the above-mentioned molded article from above and below the roller to achieve heat.
  • a molded product is fired by feeding air and gas from a combustion fan into the furnace at a front portion of a continuous firing furnace, and discharging exhaust gas to the outside with an exhaust gas fan, At the rear of the firing furnace, air or cold air is sent from the cooling fan into the furnace, and the hot exhaust air inside the furnace is discharged to the outside by the cooling exhaust fan, thereby rapidly cooling the furnace and shortening the firing time. I was sorry.
  • air and gas are introduced into the first half of the continuous firing furnace, and air or cold air is forcibly fed in the second half to exhaust the exhaust gas and combustion air from the furnace, respectively.
  • the molded product can be quickly fired by introducing air into the furnace.
  • a plurality of firing units are formed continuously through a shielding plate, so that the type and size of ceramic products, for example, ceramic electronic components used for building supplies such as tiles and automobile engines, etc.
  • a continuous firing furnace can be formed according to the ceramic products.
  • the parner ports on the side wall of the furnace are placed away from the opposing positions, that is, the flame from the parner ports arranged on the two opposing side walls turns left or right in the unit.
  • the temperature in the furnace divided by each shielding plate can be adjusted according to the type and size of the molded article to be fired.
  • FIG. 1 is an overall schematic diagram of the continuous firing furnace of the present invention.
  • FIG. 2 is a partially enlarged detailed view of FIG.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG.
  • FIG. 4 is a graph showing the relationship between the firing time (60 minutes) of ceramic articles in the continuous firing furnace of the present invention and the temperature.
  • FIG. 5 is a diagram showing the gas and air supply path of the burner of FIG. 1 and the exhaust gas discharge path.
  • FIG. 6 is a partially enlarged detailed view of another continuous firing furnace different from FIG.
  • FIG. 7 is a cross-sectional view taken along line BB of FIG.
  • FIG. 8 is a graph showing the relationship between the firing time (20 minutes) and the temperature of ceramic articles using FIGS. 6 and 7, which are another embodiment of the present invention.
  • FIG. 9 is a schematic diagram showing the temperature relationship and the total furnace length in a conventional baking time of 20 minutes.
  • FIG. 10 is a graph showing the relationship between the temperature and the time of the annealing step of the stainless steel part used for high-temperature exhaust from the engine, in comparison with the example in which the ceramic product is a tile in FIGS. 4 and 8.
  • FIG. 11 is a graph showing the relationship between the temperature and time in the annealing step in which the same automotive component as in FIG. 10 was performed in a shorter time.
  • a continuous firing furnace suitable for each brand can be obtained by forming a continuous firing furnace using a required number of firing furnace units and shielding plates.
  • each shielding plate a combustion condition according to the shielding in the furnace can be obtained. Furthermore, in the firing furnace between the shielding plates, the burner of the swirling flow and the vortex flow enabled more uniform combustion of the molded product due to the opening of the parner opening.
  • Fig. 1 is a schematic vertical sectional view of a continuous firing furnace in which firing furnace units are connected in a horizontal line.
  • Fig. 2 is a partially enlarged explanatory view of Fig. 1
  • Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2
  • Fig. Fig. 5 is a graph showing an example of the relationship between the firing time and the firing temperature for producing the ceramic article according to the invention.
  • Explanatory drawing showing the path of the combustion fan ⁇ inside the furnace ⁇ exhaust gas fan and cooling fan ⁇ inside the furnace ⁇ cooling and exhaust fan
  • Fig. 6 is a partially enlarged detailed view of a continuous firing furnace different from Fig. 2
  • Fig. 7 is a cross-sectional view of B-B of Fig.
  • Fig. 6 is 10 pieces (1 Om) of one piece with one lm firing unit for firing ceramic products with a firing time of 20 minutes.
  • Fig. 9 is a graph of the present invention showing the burning temperature and burning time of the continuous burning furnace according to the invention, and Fig. 9 shows a conventional example of a continuous burning furnace having a total length of 45 m when the burning time is 20 minutes in Fig. 8. Is shown.
  • Firing furnace A Is a maboco-type tubular tunnel 2 as a furnace body consisting of a ceiling 4 3, side walls 49, partition walls 5, and a hearth 45 made of refractory metal (especially made by AG Block Marukoshi Kogyo Co., Ltd.).
  • the above-mentioned bulkhead 5 and hearth 45 are made of refractory brick in the lower half.
  • the shielding plate 4 may be provided for each firing furnace unit, but one shielding plate is provided for two or more firing units in accordance with the firing conditions of the molded product.
  • the shielding plate 4 is moved up and down by penetrating the ceiling between the baking furnace units by the power cylinder 3 by means of a force automatically performed through a reaction plate 8 fixed to the furnace body or a manual operation. Can be.
  • the screw 9 is screwed to the reaction force plate 8 for adjusting the length of vertical movement of the shield plate 4 by the power cylinder 3.
  • the parners 14, 15, 15 and 16 and 17 are arranged so that two opposing positions are removed from the upper and lower sides, respectively. If a flame is radiated from the upper part of the side wall 49 of the side wall 49, the other side wall radiates the flame in the same manner as above (the same applies to the lower side).
  • Side, 49 opposite side walls 49 are provided with wrench openings 14, 15, 15, 16, 17 (In the drawing, the upper corner of one side wall is located at the upper right corner and the lower corner is located at the lower left corner).
  • the conveyor opening is located at the back of the firing furnace (right side in Fig. 1). 2 There may be two on either side of the left and right walls only, one on each of the left and right walls (total of two), or none at all depending on the design.
  • Fig. 4 assuming that the baking process inside the medium-scale continuous baking furnace is 60 minutes from the beginning to the end, the first 7 minutes are used to dry the molded product with one or two parners in one baking furnace unit.
  • the temperature inside the furnace unit was gently increased from 144 ° C to 271 ° C, and then, the heating power was increased by increasing the amount of gas burned by the parner in the temperature raising process. And, by lowering the shielding plate inside the furnace, it passes through the furnace unit whose temperature has rapidly risen to 790 ° C, and further lowers the shielding plate 4 to the extent that molded products can pass through, so that the inside of the furnace unit While controlling the temperature rise, the furnace unit raised to the maximum temperature of After passing for 9 minutes as a high temperature holding step, the atmosphere was put into the furnace unit in the quenching step to lower the temperature to 675 ° C, and then the average temperature of the tunnel in the slow cooling step was 573. Then, the shield plate 4 is cooled in the cooling process with the raised shield plate 4, so that the porcelain product is fired as a ceramic product.
  • FIGS. 1 to 5 of the first embodiment in the baking furnace units 1, 1 ', 1 ", the shielding plate 4 penetrating the ceiling 4 3 is moved up and down by the power cylinder 3, and all 6 units are used.
  • Side walls 49 are provided with alternate slits 36 at the top and bottom where two shielding plates are vertically shifted like a sliding door and inserted from the horizontal direction, and fixed in the upper right of Fig.
  • the upper shielding plate 42 is inserted, and the lower shielding plate 43 is positioned in the lower left so as to be vertically movable within the slit 36 so as to partially overlap the upper shielding plate 42.
  • the cylinder rod 46 is extended and contracted with the power cylinder 3 fixed to this.
  • the outer cylinder of the cylinder rod 46 is provided with an outer cylinder screw 48 screwed to a flange 47 fixed to the furnace body, so that the entire power cylinder 3 can be moved up and down. Adjust the width of the stretch length.
  • Figs. 6 to 8 the firing process is performed by using one firing furnace unit 1, 1 ', 1 " This embodiment will be described in comparison with a conventional sintering furnace with the same sintering time of 20 minutes in the 5 m ⁇ 9 section-total length 5 m in FIG.
  • the upper diagram in FIG. 8 shows the relationship between the firing time and the firing temperature of the molded article in the 10 firing furnace units shown in the lower diagram.
  • the first 2 minutes of the molded product is a drying process from 230 ° C to 300 ° C
  • the next 6 minutes is a heating process to 1200 ° C
  • a high-temperature holding step at 1200 ° C for about 15 seconds is a rapid cooling step to reduce to 573 ° C in 4 minutes, and a gradual cooling step to 475 ° C in 3 minutes 45 seconds To lower the temperature, and finally, after a cooling process for 2 minutes, finish the ceramic products in a total of 20 minutes.
  • the firing temperature can be increased while maintaining the temperature required for firing. This is due to speeding down.
  • the second embodiment of the present invention is different from the first embodiment in that the upper and lower shielding plates 42, 43 between the respective firing furnace units are made by sealing the entire ceiling 43 with firebrick. Then, it is moved laterally from the gap (not shown) in one side wall 49 of the firing furnace unit toward the other side wall, and the lower shielding plate of the upper and lower shielding plates is outside the side wall by a power cylinder.
  • the temperature is adjusted between the baking furnace units above the transfer means by raising and lowering it from both sides of the furnace within the range of the slit 36 in the furnace (nearly double the length in the figure).
  • the left and right side walls are provided with a gap (not shown) enough to accommodate the thickness of the shielding plate, and after the shielding plate is pushed into the furnace and wrapped around both side walls, the gap is removed by the ceramic fiber. With fire-resistant fibers.
  • the lower shielding plate is automatically moved in and out manually by the cylinder or the like.
  • stainless steel automotive parts (hereinafter referred to as metal parts) used for engine parts and the like are annealed instead of the ceramic articles (performed after pressing stainless steel). Will be described.
  • This metal part is repeatedly pressed for forming, but if it is not annealed, it will break at the place where stress is concentrated by the press, so press ⁇ annealing ⁇ press ⁇ annealing ⁇ press ⁇ annealing .
  • the pressed metal parts are made of refractory and have a thickness of 5 ⁇ !
  • the setters were placed side by side on a thin plate (called a setter) of about 8 m in length, and the setter was placed on a ceramic roller 6 as a transport means of the continuous firing furnace shown in FIG. 5 and passed through the furnace.
  • this entire annealing process Starting from around 120 ° C, gradually raise the temperature to the maximum temperature in 6 and 3 minutes, maintain the temperature for about 4 minutes, then rapidly cool in about 22.8 minutes and then in about 2 minutes, Finally, cool slowly until about 8.2 minutes later to finish annealing.
  • the conventional annealing which took 45 minutes in total, could be completed in 21 minutes.
  • the reason is that the flame amount of the wrench can be finely adjusted between the shielding plates.
  • the air and gas are introduced from the combustion fan into the furnace in the first half of the firing furnace ⁇ , and the exhaust gas in the furnace is exhausted by the exhaust gas fan.
  • air or cold air is sent into the furnace, and the air in the furnace is exhausted to the outside by a cool air exhaust fan, which results in rapid combustion and cooling. Due to having made it possible.
  • FIG. 11 shows the annealing of the same automobile part as that of FIG. 10 described above in a shorter time. Raise the temperature until 8 minutes later, then hold the maximum temperature (1100 ° C) for about 3.7 minutes (about 8.5 minutes from the beginning) for about 3.7 minutes, and then for 1.5 more minutes. It was quenched and the remaining 6 minutes were used as a slow cooling process.
  • ceramic products were mentioned, but in the present invention, various types of products are used depending on the mounting of the shielding plate, height adjustment, the burning temperature and time of the wrench, the cooling temperature and time of cooling air, and the like. Needless to say, it can be set accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

L'invention concerne un four continu comprenant des unités mobiles, assemblées les unes aux autres pour ajuster la température de combustion de produits moulés. Ledit four continu se caractérise en ce qu'il comporte une pluralité d'unités assemblées les unes aux autres par déplacement vertical de volets protecteurs. Des ouvertures de brûleur sont aménagées dans des parois latérales opposées à l'intérieur des unités du four et un moyen de transport traversant les unités de four assemblées est disposé dans le four.
PCT/JP2003/013516 2002-10-23 2003-10-23 Four continu WO2004038315A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003277516A AU2003277516A1 (en) 2002-10-23 2003-10-23 Continuous furnace
EP03809452A EP1607704A4 (fr) 2002-10-23 2003-10-23 Four continu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002/308059 2002-10-23
JP2002308059 2002-10-23

Publications (1)

Publication Number Publication Date
WO2004038315A1 true WO2004038315A1 (fr) 2004-05-06

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EP (1) EP1607704A4 (fr)
AU (1) AU2003277516A1 (fr)
WO (1) WO2004038315A1 (fr)

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RU2502029C1 (ru) * 2012-06-22 2013-12-20 Рафик Багратович Оганесян Челночная печь
DE102012221120B4 (de) * 2012-11-19 2017-01-26 Kirchhoff Automotive Deutschland Gmbh Rollenherdofen und Verfahren zur Wärmebehandlung von metallischen Blechen
RU2661293C1 (ru) * 2017-06-02 2018-07-13 Рафик Багратович Оганесян Тепловой агрегат для скоростного обжига пористых заполнителей в неподвижном монослое
RU2729793C1 (ru) * 2019-08-30 2020-08-12 Рафик Багратович Оганесян Агрегат для производства пеностекольных плит
DE102020116593A1 (de) 2020-06-24 2021-12-30 AICHELIN Holding GmbH Wärmebehandlungsanlage und Verfahren zur Herstellung von Formbauteilen

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