CN109536674B - Trolley type heat treatment furnace - Google Patents

Trolley type heat treatment furnace Download PDF

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Publication number
CN109536674B
CN109536674B CN201811497931.1A CN201811497931A CN109536674B CN 109536674 B CN109536674 B CN 109536674B CN 201811497931 A CN201811497931 A CN 201811497931A CN 109536674 B CN109536674 B CN 109536674B
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China
Prior art keywords
sealing
contact surface
sealing contact
furnace
telescopic driving
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CN201811497931.1A
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Chinese (zh)
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CN109536674A (en
Inventor
欧阳建
宇文静
杨克辉
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Hunan Gold Furnace Science & Technology Co ltd
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Hunan Gold Furnace Science & Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056Furnaces through which the charge is moved in a horizontal straight path
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • 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)
  • Furnace Charging Or Discharging (AREA)
  • Tunnel Furnaces (AREA)

Abstract

The invention discloses a trolley type heat treatment furnace, which comprises a furnace body and a trolley type furnace bottom, wherein the furnace body is provided with a furnace chamber, the trolley type furnace bottom is movably arranged and can enter and exit the furnace chamber, both sides of the trolley type furnace bottom are respectively provided with a movable sealing device for sealing a gap between the trolley type furnace bottom and the inner wall of the furnace chamber, the movable sealing device comprises a sealing element and a movable driving assembly arranged on the furnace body, the furnace body is provided with a first sealing contact surface, the trolley type furnace bottom is provided with a second sealing contact surface, a driving end of the movable driving assembly is connected with the sealing element and can drive the sealing element to move between a first position and a second position, and the sealing element is simultaneously pressed and contacted with the first sealing contact surface and the second sealing contact surface in the first position and is simultaneously far away from the first sealing contact surface and the second sealing contact surface in the second position. The invention has the advantages of long service life, simple and compact structure, low cost, simple operation, easy maintenance, good sealing stability and the like.

Description

Trolley type heat treatment furnace
Technical Field
The invention relates to the technical field of heat treatment kilns, in particular to a trolley type heat treatment furnace.
Background
The trolley type heat treatment furnace (side-by-side type heat treatment furnace) is widely used in the field of material heat treatment due to its simple structure and high efficiency. The trolley type heat treatment furnace mainly comprises a furnace body, a trolley and a track, wherein the track for trolley traveling passes through a hearth of the furnace body along the movement direction of the kiln car when in operation, and the trolley filled with workpieces can enter and exit the hearth along the track. Because the trolley needs to move into and out of the hearth, gaps are required between the trolley and the inner walls of the hearth on two sides, and the gaps are required to be sealed by sealing elements to ensure tightness, however, when the trolley and the furnace body are frequently moved relatively in actual operation, the sealing elements between the trolley and the furnace body are easy to wear, the problems of low service life and high maintenance cost exist, the tightness between the trolley and the furnace body is difficult to ensure, and even if multistage steps are arranged between the trolley and the furnace body to slow down the leakage of the atmosphere in the furnace, the problem of poor tightness of the furnace type cannot be solved, and energy consumption and gas consumption are still increased.
In order to solve the problems, the conventional method is to adopt a sealing mode of a sand sealing device or a water sealing device between the side part of the kiln car and the hearth, but the sealing effect of the sand sealing device is poor, the water sealing device is difficult to maintain and complex to operate in long-term use, and the sand sealing device and the water sealing device have the defects of complex structure, large occupied space, high cost and poor sealing stability.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects existing in the prior art and providing the trolley type heat treatment furnace which has the advantages of long service life, simple and compact structure, low cost, simple operation, easy maintenance and good sealing stability.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a trolley-type heat treatment furnace, includes furnace body and trolley-type stove bottom, the furnace body is equipped with the furnace, trolley-type stove bottom activity sets up and can get in and out the furnace, trolley-type stove bottom's both sides all are equipped with the movable sealing device who is used for sealing the clearance between trolley-type stove bottom and the furnace inner wall, movable sealing device includes sealing member and installs the removal drive assembly on the furnace body, be equipped with first sealing contact surface on the furnace body, be equipped with the second sealing contact surface on the trolley-type stove bottom, the drive end that removes drive assembly links to each other with the sealing member and can drive the sealing member and remove between first position and second position, in the first position the sealing member compresses tightly simultaneously and contacts first sealing contact surface and second sealing contact surface, in the second position the sealing member is kept away from simultaneously first sealing contact surface and second sealing contact surface.
As a further improvement of the above technical scheme:
the movable driving assembly comprises a telescopic driving piece arranged outside the furnace body, and the sealing piece is connected with the telescopic driving end of the telescopic driving piece.
The sealing element is connected with the telescopic driving end of the telescopic driving element through a guide connecting mechanism, the guide connecting mechanism comprises a push-pull rod and a guide sleeve arranged on the furnace body, the push-pull rod is arranged in the guide sleeve in a sliding mode, the telescopic driving end of the telescopic driving element is connected with one end of the push-pull rod, and the sealing element is connected with the other end of the push-pull rod.
The direction in which the telescopic driving piece drives the sealing piece to move is the horizontal direction, the first sealing contact surface is an inclined surface which is obliquely downwards arranged along the direction close to the trolley type furnace bottom, and the second sealing contact surface is a non-horizontal surface.
The inclination angle of the first sealing contact surface relative to the horizontal plane is 5-10 degrees.
The sealing piece comprises a mounting support and a sealing strip arranged on the mounting support, the mounting support is connected to the telescopic driving end of the telescopic driving piece, the cross section of the sealing strip is rectangular, the top surface of the sealing strip is arranged into an inclined surface form, the inclined direction of the top surface is arranged into an inclined surface form, and the inclined direction of the top surface is consistent with the inclined direction of the first sealing contact surface and the inclined angle of the first sealing contact surface is larger than that of the first sealing contact surface.
The inclination angle of the top surface of the sealing strip is 30-50 degrees.
The mounting bracket is provided with a U-shaped mounting and positioning groove, and the sealing strip is accommodated and mounted in the U-shaped mounting and positioning groove.
The mounting bracket comprises an L-shaped strip and a U-shaped strip with the U-shaped mounting positioning groove, one side edge of the L-shaped strip is vertically arranged, the other side edge of the L-shaped strip is horizontally arranged, and two corners of the U-shaped strip are respectively and correspondingly fixedly connected with the inner side faces of the two side edges of the L-shaped strip.
The telescopic driving piece is a telescopic cylinder or an electric push rod.
Compared with the prior art, the invention has the advantages that: according to the trolley type heat treatment furnace, the movable sealing device for driving the sealing element to act is adopted to seal the gap between the trolley type furnace bottom and the inner wall of the furnace chamber, the sealing element is driven to be far away from the first sealing contact surface and the second sealing contact surface by the movable driving assembly when the trolley type furnace bottom moves, the furnace body, the trolley type furnace bottom and the sealing element cannot generate friction, the sealing element can be prevented from being worn, and the service life of the sealing element can be greatly prolonged; after the trolley type furnace bottom moves in place, the sealing element is driven to be pressed and contacted with the first sealing contact surface and the second sealing contact surface by the moving driving assembly, so that a gap between the trolley type furnace bottom and the inner wall of the hearth can be sealed. The sealing device has the advantages of long service life, simple and compact structure, low cost, simplicity in operation, easiness in maintenance and good sealing stability.
Drawings
FIG. 1 is a schematic side view of a car-type heat treatment furnace.
FIG. 2 is a schematic view showing a partial structure of the heat treatment furnace of the bogie hearth type when the sealing member is in the first position.
FIG. 3 is a schematic view showing a partial structure of the heat treatment furnace with the sealing member in the second position.
Fig. 4 is a schematic cross-sectional view of a seal.
Legend description:
1. a furnace body; 10. a furnace; 11. a first sealing interface; 2. a trolley-type furnace bottom; 21. a second sealing interface; 3. a seal; 31. a mounting bracket; 311. an L-shaped strip; 312. a U-shaped strip; 32. a sealing strip; 4. a telescopic driving member; 5. a push-pull rod; 6. a guide sleeve.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 3, the trolley type heat treatment furnace of the present embodiment comprises a furnace body 1 and a trolley type furnace bottom 2, wherein the furnace body 1 is provided with a furnace chamber 10, the trolley type furnace bottom 2 is movably arranged and can enter and exit the furnace chamber 10, both sides of the trolley type furnace bottom 2 are respectively provided with a movable sealing device for sealing a gap between the trolley type furnace bottom 2 and the inner wall of the furnace chamber 10, the movable sealing devices comprise sealing elements 3 and a movable driving assembly arranged on the furnace body 1, a first sealing contact surface 11 is arranged on the furnace body 1, a second sealing contact surface 21 is arranged on the trolley type furnace bottom 2, the driving end of the movable driving assembly is connected with the sealing elements 3 and can drive the sealing elements 3 to move between a first position and a second position, the sealing elements 3 are simultaneously pressed to contact the first sealing contact surface 11 and the second sealing contact surface 21 in the first position, and the sealing elements 3 are simultaneously far away from the first sealing contact surface 11 and the second sealing contact surface 21 in the second position. When the moving driving assembly drives the sealing element 3 to move to the first position, the sealing element 3 simultaneously presses and contacts the first sealing contact surface 11 and the second sealing contact surface 21, and at the moment, the sealing element 3 seals a gap between the trolley type furnace bottom 2 and the inner wall of the hearth 10; when the moving driving assembly drives the sealing element 3 to move to the second position, the sealing element 3 is far away from the first sealing contact surface 11 and the second sealing contact surface 21 at the same time, at the moment, the first sealing contact surface 11 and the second sealing contact surface 21 are not contacted with the sealing element 3, and the trolley type furnace bottom 2 and the furnace body 1 relatively move, so that the sealing element 3 cannot be worn. The trolley type heat treatment furnace adopts the movable sealing device which drives the sealing element 3 to act to seal the gap between the trolley type furnace bottom 2 and the inner wall of the hearth 10, and the sealing element 3 is driven to be far away from the first sealing contact surface 11 and the second sealing contact surface 21 by the movable driving assembly when the trolley type furnace bottom 2 moves, so that friction between the furnace body 1 and the trolley type furnace bottom 2 and the sealing element 3 can not be generated, the abrasion of the sealing element 3 can be avoided, and the service life of the sealing element 3 can be greatly prolonged; after the trolley type furnace bottom 2 moves in place, the sealing element 3 is driven to be pressed and contacted with the first sealing contact surface 11 and the second sealing contact surface 21 by the moving driving assembly, so that a gap between the trolley type furnace bottom 2 and the inner wall of the hearth 10 can be sealed. The sealing device has the advantages of long service life, simple and compact structure, low cost, simplicity in operation, easiness in maintenance and good sealing stability.
In this embodiment, the movement driving assembly includes a telescopic driving member 4 installed outside the furnace body 1, the sealing member 3 is connected to a telescopic driving end of the telescopic driving member 4, and the telescopic driving end of the telescopic driving member 4 performs telescopic movement to drive the sealing member 3 to perform translational movement. The telescopic driving piece 4 is arranged outside the furnace body 1, so that the influence of high temperature in the furnace on the telescopic driving piece 4 can be reduced, and the control, the installation and the maintenance of the telescopic driving piece 4 are convenient.
In this embodiment, the sealing element 3 is connected with the telescopic driving end of the telescopic driving element 4 through a guiding connection mechanism, the guiding connection mechanism comprises a push-pull rod 5 and a guiding sleeve 6 installed on the furnace body 1, the push-pull rod 5 is slidably arranged in the guiding sleeve 6, the telescopic driving end of the telescopic driving element 4 is connected with one end of the push-pull rod 5, and the sealing element 3 is connected with the other end of the push-pull rod 5. The guiding connection mechanism guides the moving direction of the sealing element 3, so that the moving accuracy of the sealing element 3 can be ensured, the contact matching precision of the sealing element 3 and the first sealing contact surface 11 and the second sealing contact surface 21 can be further ensured, and the sealing reliability can be ensured.
In this embodiment, the direction in which the telescopic driving member 4 drives the sealing member 3 to move is a horizontal direction, so that the structural space of the trolley type heat treatment furnace can be reasonably utilized, and the telescopic driving member 4 is easier to install, the first sealing contact surface 11 is an inclined surface which is obliquely downwards arranged along the direction close to the trolley type furnace bottom 2, and the second sealing contact surface 21 is a non-horizontal surface. When the telescopic driving piece 4 drives the sealing piece 3 to horizontally move to be close to the second sealing contact surface 21, the sealing piece 3 can be simultaneously contacted with the first sealing contact surface 11 and the second sealing contact surface 21, and along with the further movement of the sealing piece 3 to the direction close to the second sealing contact surface 21, the sealing piece 3 can simultaneously press the first sealing contact surface 11 and the second sealing contact surface 21, so that a good sealing effect is achieved. Because the first sealing contact surface 11 is an inclined surface, the sealing element 3 is contacted with the first sealing contact surface 11 in the moving process, and the sealing element 3 gradually presses the first sealing contact surface 11 until the contact is pressed with the second sealing contact surface 21, namely, the relative positions of the first sealing contact surface 11 and the second sealing contact surface 21 are allowed to have certain deviation, so that the requirements on the relative position precision of the first sealing contact surface 11 and the second sealing contact surface 21 can be reduced, and the manufacturing and assembling difficulty and the manufacturing and assembling cost are reduced. Preferably, the second sealing contact surface 21 is a vertical surface.
In this embodiment, the first seal contact surface 11 has an inclination angle of 5 ° to 10 ° with respect to the horizontal plane. This range of inclination reduces wear caused by friction between the seal 3 and the first seal contact surface 11 while ensuring that the seal 3 is in simultaneous compressive contact with both the first seal contact surface 11 and the second seal contact surface 21.
In this embodiment, the sealing member 3 includes a mounting bracket 31 and a sealing strip 32 mounted on the mounting bracket 31, the mounting bracket 31 is connected to the telescopic driving end of the telescopic driving member 4, the cross section of the sealing strip 32 is rectangular, the top surface of the sealing strip 32 is arranged in a bevel form, the inclination direction of the top surface arranged in the bevel form is consistent with the inclination direction of the first sealing contact surface 11, and the inclination angle is larger than the inclination angle of the first sealing contact surface 11. The sealing strip 32 with rectangular cross section can be directly made of commercial materials, and is not specially customized, so that the cost can be reduced. In the case of adopting the sealing strip 32 with the rectangular cross section, the top surface of the sealing strip 32 is arranged into the inclined surface form, so that the part of the sealing strip 32, which is in compression contact with the first sealing contact surface 11 and the second sealing contact surface 21, is two corners, and the corners of the sealing strip 32 can be deformed better, thereby improving the sealing effect and the sealing stability.
In this embodiment, the inclination angle of the top surface of the sealing strip 32 is 30 ° to 50 °, and the optimal deformation amount can be achieved when the corner of the sealing strip contacts the first sealing contact surface 11 with an inclination angle of 5 ° to 10 °, so that the abrasion between the sealing strip 32 and the first sealing contact surface 11 due to friction is minimized.
In this embodiment, as shown in fig. 4, the mounting bracket 31 has a U-shaped mounting and positioning groove, and the sealing strip 32 is accommodated in the U-shaped mounting and positioning groove, so as to improve the stability and reliability of the mounting of the sealing strip 32. Further, the mounting bracket 31 includes an L-shaped bar 311 and a U-shaped bar 312 having a U-shaped mounting positioning slot, one side of the L-shaped bar 311 is vertically arranged, the other side of the L-shaped bar 311 is horizontally arranged, and two corners of the U-shaped bar 312 are respectively and fixedly connected with inner side surfaces of two sides of the L-shaped bar 311. The mounting bracket 31 has a simple structure, is easy to manufacture, and has low cost.
In this embodiment, the telescopic driving member 4 is a telescopic cylinder. In other embodiments, the telescopic driving member 4 may also adopt a driving mechanism for driving the telescopic movement, such as a telescopic cylinder or an electric push rod. In this embodiment, the sealing strip 32 is a silicone rubber sealing strip.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.

Claims (8)

1. The utility model provides a trolley type heat treatment furnace, includes furnace body (1) and trolley type stove bottom (2), furnace body (1) is equipped with furnace (10), trolley type stove bottom (2) activity sets up and can pass in and out furnace (10), its characterized in that: the two sides of the trolley type furnace bottom (2) are respectively provided with a movable sealing device for sealing a gap between the trolley type furnace bottom (2) and the inner wall of the hearth (10), the movable sealing devices comprise sealing elements (3) and a movable driving assembly arranged on the furnace body (1), the furnace body (1) is provided with a first sealing contact surface (11), the trolley type furnace bottom (2) is provided with a second sealing contact surface (21), the driving end of the movable driving assembly is connected with the sealing elements (3) and can drive the sealing elements (3) to move between a first position and a second position, the sealing elements (3) simultaneously press and contact the first sealing contact surface (11) and the second sealing contact surface (21) in the first position, and the sealing elements (3) are simultaneously far away from the first sealing contact surface (11) and the second sealing contact surface (21) in the second position;
the movable driving assembly comprises a telescopic driving piece (4) arranged outside the furnace body (1), and the sealing piece (3) is connected with a telescopic driving end of the telescopic driving piece (4);
the direction in which the telescopic driving piece (4) drives the sealing piece (3) to move is the horizontal direction, the first sealing contact surface (11) is an inclined surface which is obliquely downwards arranged along the direction close to the trolley type furnace bottom (2), the second sealing contact surface (21) is a non-horizontal surface, when the telescopic driving piece (4) drives the sealing piece (3) to horizontally move to be close to the second sealing contact surface (21), the sealing piece (3) is firstly contacted with the first sealing contact surface (11) in the moving process, and the sealing piece (3) gradually presses the first sealing contact surface (11) until the second sealing contact surface (21) is pressed.
2. The cart type heat treatment furnace according to claim 1, wherein: the sealing element (3) is connected with the telescopic driving end of the telescopic driving element (4) through a guide connecting mechanism, the guide connecting mechanism comprises a push-pull rod (5) and a guide sleeve (6) arranged on the furnace body (1), the push-pull rod (5) is slidably arranged in the guide sleeve (6), the telescopic driving end of the telescopic driving element (4) is connected with one end of the push-pull rod (5), and the sealing element (3) is connected with the other end of the push-pull rod (5).
3. The cart type heat treatment furnace according to claim 1, wherein: the inclination angle of the first sealing contact surface (11) relative to the horizontal plane is 5-10 degrees.
4. The cart type heat treatment furnace according to claim 1, wherein: the sealing element (3) comprises a mounting bracket (31) and a sealing strip (32) arranged on the mounting bracket (31), the mounting bracket (31) is connected to the telescopic driving end of the telescopic driving element (4), the cross section of the sealing strip (32) is rectangular, the top surface of the sealing strip (32) is arranged into an inclined surface form, the inclined direction of the top surface is consistent with the inclined direction of the first sealing contact surface (11) and the inclined angle of the top surface is larger than that of the first sealing contact surface (11).
5. The cart type heat treatment furnace according to claim 4, wherein: the inclination angle of the top surface of the sealing strip (32) is 30-50 degrees.
6. The cart type heat treatment furnace according to claim 4, wherein: the mounting bracket (31) is provided with a U-shaped mounting and positioning groove, and the sealing strip (32) is accommodated and mounted in the U-shaped mounting and positioning groove.
7. The cart type heat treatment furnace according to claim 6, wherein: the mounting bracket (31) comprises an L-shaped strip (311) and a U-shaped strip (312) with the U-shaped mounting positioning groove, one side edge of the L-shaped strip (311) is vertically arranged, the other side edge of the L-shaped strip (311) is horizontally arranged, and two corners of the U-shaped strip (312) are respectively and correspondingly fixedly connected with the inner side surfaces of the two side edges of the L-shaped strip (311).
8. The cart type heat treatment furnace according to any one of claims 2 to 7, characterized in that: the telescopic driving piece (4) is a telescopic cylinder or a telescopic oil cylinder or an electric push rod.
CN201811497931.1A 2018-12-07 2018-12-07 Trolley type heat treatment furnace Active CN109536674B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811497931.1A CN109536674B (en) 2018-12-07 2018-12-07 Trolley type heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811497931.1A CN109536674B (en) 2018-12-07 2018-12-07 Trolley type heat treatment furnace

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CN109536674A CN109536674A (en) 2019-03-29
CN109536674B true CN109536674B (en) 2023-11-24

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1355616A (en) * 1971-04-23 1974-06-05 Stein Atkinson Strody Ltd Walking beam furnace
US5704783A (en) * 1994-03-31 1998-01-06 Thermoprocess Gmbh Walking hearth furnace
CN102703650A (en) * 2012-07-09 2012-10-03 丹阳市江南工业炉有限公司 Super-large trolley type gas heat treatment furnace
CN202671605U (en) * 2012-07-09 2013-01-16 丹阳市江南工业炉有限公司 Trolley type gas thermal treatment furnace provided with split furnace door
JP5621012B1 (en) * 2013-05-22 2014-11-05 陳邱生 Structure of bell jar type spheroidizing annealing continuous heat treatment furnace
CN104164550A (en) * 2014-07-28 2014-11-26 张家港市伟业机械制造有限公司 Sealing device for heat-treatment furnace mobile rear wall
JP2017122527A (en) * 2016-01-06 2017-07-13 大同特殊鋼株式会社 Heat seal structure of carriage type heating furnace
CN206680534U (en) * 2017-04-06 2017-11-28 武汉迈特炉业科技有限公司 A kind of car-type heat treating furnace by rear fire door transfiguration
CN209636274U (en) * 2018-12-07 2019-11-15 湖南金炉科技股份有限公司 A kind of car-type heat treating furnace

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1355616A (en) * 1971-04-23 1974-06-05 Stein Atkinson Strody Ltd Walking beam furnace
US5704783A (en) * 1994-03-31 1998-01-06 Thermoprocess Gmbh Walking hearth furnace
CN102703650A (en) * 2012-07-09 2012-10-03 丹阳市江南工业炉有限公司 Super-large trolley type gas heat treatment furnace
CN202671605U (en) * 2012-07-09 2013-01-16 丹阳市江南工业炉有限公司 Trolley type gas thermal treatment furnace provided with split furnace door
JP5621012B1 (en) * 2013-05-22 2014-11-05 陳邱生 Structure of bell jar type spheroidizing annealing continuous heat treatment furnace
CN104164550A (en) * 2014-07-28 2014-11-26 张家港市伟业机械制造有限公司 Sealing device for heat-treatment furnace mobile rear wall
JP2017122527A (en) * 2016-01-06 2017-07-13 大同特殊鋼株式会社 Heat seal structure of carriage type heating furnace
CN206680534U (en) * 2017-04-06 2017-11-28 武汉迈特炉业科技有限公司 A kind of car-type heat treating furnace by rear fire door transfiguration
CN209636274U (en) * 2018-12-07 2019-11-15 湖南金炉科技股份有限公司 A kind of car-type heat treating furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
台车式定性炉炉门的改进;霍志民;;中国铸造装备与技术(第04期);全文 *

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