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CN-121976013-A - Efficient energy-saving vacuum quenching furnace and heat treatment method thereof

CN121976013ACN 121976013 ACN121976013 ACN 121976013ACN-121976013-A

Abstract

The application discloses a high-efficiency energy-saving vacuum quenching furnace and a heat treatment method thereof, wherein a quenching furnace body is arranged into four independent chambers, namely a feeding chamber, a transferring chamber, a heating chamber and a discharging chamber, and sealing doors are arranged between the chambers, so that the quenching furnace has the capability of carrying out continuous heat treatment on materials, the materials are respectively transited in the sealed feeding chamber and the discharging chamber in the feeding and discharging process, the fourth sealing door and the fifth sealing door are opened for feeding and discharging, the vacuum environment of the other chambers is not damaged in the feeding and discharging processes, the other chambers can still work normally in the feeding and discharging processes, and when the fourth sealing door and the fifth sealing door are closed after the feeding and discharging are completed, a vacuumizing system only needs to carry out vacuumizing treatment on the feeding chamber and the discharging chamber, the whole quenching furnace body is not required to be subjected to vacuumizing treatment after the feeding and discharging, the efficiency is improved, the energy consumption is reduced, and the continuous heat treatment on workpieces can be realized.

Inventors

  • Zhu Yourun
  • SHEN MAOLIN
  • WANG GUOQING
  • HU CHAOHUI
  • LI ZHONGKUI
  • LU JUN

Assignees

  • 安徽省凤形新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260115

Claims (10)

  1. 1. The efficient energy-saving vacuum quenching furnace comprises a quenching furnace body (1) and a vacuumizing system matched with the quenching furnace body (1), and is characterized in that the quenching furnace body (1) comprises a transition furnace body (11) which is transversely arranged and a heating furnace body (12) which is arranged at one side of the transition furnace body (11), a feeding chamber (111), a transit chamber (112) and a discharging chamber (113) are sequentially arranged in the transition furnace body (11), a first sealing door (2) is arranged between the transit chamber (112) and the feeding chamber (111), a second sealing door (3) is arranged between the transit chamber (112) and the discharging chamber (113), a heating chamber and a heating part are arranged in the heating furnace body (12), the heating chamber is communicated with one side of the transit chamber (112) and is provided with a third sealing door (4), a feeding port (114), a discharging port (115) which is communicated with the feeding chamber (111) and the discharging chamber (113) are respectively arranged on the quenching furnace body (1), a fourth sealing door (116) is respectively arranged between the feeding port (114) and the discharging port (115), a quenching chamber (116) is respectively arranged at the lower side of the quenching chamber (116), and a transfer mechanism used for transferring materials among the feeding chamber (111), the transfer chamber (112), the heating chamber, the discharging chamber (113) and the quenching chamber (116) is further arranged in the quenching furnace body (1).
  2. 2. The efficient and energy-saving vacuum quenching furnace as claimed in claim 1, wherein the transfer mechanism comprises a lifting platform (8) arranged in a transfer chamber (112) and a lifting mechanism for driving the lifting platform (8) to lift up and down, a horizontally arranged transfer fork body (9) and a fork body driving mechanism for driving the transfer fork body (9) to move back and forth are arranged on the lifting platform (8), the lifting platform (8) and the fork body driving mechanism horizontally rotate to enable the transfer fork body (9) to reciprocate towards the feeding chamber (111), the discharging chamber (113) and the heating chamber, and the fork body driving mechanism is matched with the rotating mechanism (10) to drive the transfer fork body (9) to extend into and withdraw from the feeding chamber (111), the discharging chamber (113) and the heating chamber.
  3. 3. The efficient and energy-saving vacuum quenching furnace as claimed in claim 2, wherein the rotating mechanism (10) comprises a rotating platform (103) arranged on the lifting platform (8), a rotating bearing (101) arranged between the rotating platform (103) and the lifting platform (8) and a rotating driver (102) arranged at the central position of the rotating bearing (101), and the rotating driver (102) is a rotating oil cylinder or an index plate.
  4. 4. The efficient and energy-saving vacuum quenching furnace as claimed in claim 1, wherein the fork body driving mechanism comprises a fork frame (13) and a multi-stage hydraulic cylinder (14), the transferring fork body (9) can be horizontally and slidably arranged on the fork frame (13), and the multi-stage hydraulic cylinder (14) for driving the transferring fork body (9) to move forwards and backwards is arranged on the fork frame (13).
  5. 5. The efficient and energy-saving vacuum quenching furnace as claimed in claim 1, wherein the feeding chamber (111), the heating chamber and the discharging chamber (113) are respectively provided with a placing frame (15) matched with the transferring fork body (9), the upper side of the placing frame (15) is used for placing a material frame or a workpiece, and a space for the transferring fork body (9) to extend in is arranged between the placing frames (15).
  6. 6. The efficient and energy-saving vacuum quenching furnace as claimed in claim 1, wherein the lifting mechanism comprises at least two vertically arranged lifting slide bars (12) and a hydraulic lifting driving cylinder, the lifting slide bars (12) are vertically arranged on one side, away from the heating furnace body (12), in the transfer chamber (112), the lifting platform (8) is slidably arranged on the lifting slide bars (12) through sliding sleeves, and the hydraulic lifting driving cylinder and the lifting slide bars (12) are arranged in the same direction and are connected to the lifting platform (8) so as to drive the lifting platform (8) to slide up and down along the lifting slide bars (12).
  7. 7. The efficient and energy-saving vacuum quenching furnace as claimed in claim 1, wherein the first sealing door (2), the second sealing door (3) and the third sealing door (4) are plugboard sealing doors.
  8. 8. A heat treatment method for the high efficiency energy saving vacuum quenching furnace as claimed in any one of claims 1 to 7, comprising the steps of: Step S1, before working, keeping a first sealing door (2), a second sealing door (3), a third sealing door (4), a fourth sealing door (5) and a fifth sealing door (6) in a closed state, vacuumizing a feeding chamber (111), a transferring chamber (112), a heating chamber, a discharging chamber (113) and a quenching chamber (116) through a vacuumizing system, and heating the heating chamber by a heating component; S2, conveying materials or a material frame with the materials placed to the position of a fourth sealing door (5) through feeding equipment, then controlling the fourth sealing door (5) to be opened, placing the materials or the material frame in a feeding cavity (111), closing the fourth sealing door (5), keeping the other sealing doors closed in the process so as to keep the vacuum of the other cavities, and vacuumizing the feeding cavity (111) through a vacuumizing system after the fourth sealing door (5) is closed; Step S3, then opening a first sealing door (2) between the feeding chamber (111) and the transferring chamber (112), conveying the material or the material frame from the feeding chamber (111) to the transferring chamber (112) through a transfer mechanism, then closing the first sealing door (2), opening a third sealing door (4), transferring the material or the material frame to a heating chamber through the third sealing door (4), closing the heating chamber, and performing heat treatment on the material through a heating component; S4, opening a third sealing door (4) after heat treatment is finished, withdrawing a material or a material frame into a transfer chamber (112) through a transfer mechanism, sinking the material into a quenching chamber (116) through the transfer mechanism for quenching, opening a second sealing door (3) after quenching is finished, carrying the material or the material frame to a discharge chamber (113) through the transfer mechanism, and closing the second sealing door (3); And S5, opening a fifth sealing door (6), namely taking out the material from the discharging cavity (113), closing the second sealing door (3) after taking out the material from the discharging cavity (113), and vacuumizing the discharging cavity (113) through a vacuumizing system to restore the vacuum.
  9. 9. The heat treatment method of a high efficiency and energy saving vacuum quenching furnace according to claim 8, wherein when the continuous heat treatment is required, the next material to be heat treated is input into the feeding chamber (111) when the previous material is in the transfer chamber (112) or the quenching chamber (116), after the heat treatment of the previous material is completed, the step S4 is performed, the previous material is transferred to the discharging chamber (113), the step S3 is performed, the next material to be heat treated is input into the transfer chamber (112), and the next material can be continuously heat treated, wherein the fifth sealing door (6) and the fourth sealing door (5) can be opened to perform the discharging and feeding processes respectively.
  10. 10. An efficient energy-saving vacuum quenching furnace as claimed in claim 8, wherein at least one sealing door of the first sealing door (2) and the fourth sealing door (5) is kept closed, and at least one sealing door of the second sealing door (3) and the fifth sealing door (6) is kept closed during operation.

Description

Efficient energy-saving vacuum quenching furnace and heat treatment method thereof Technical Field The invention relates to the technical field of heat treatment, in particular to a high-efficiency energy-saving vacuum quenching furnace and a heat treatment method thereof. Background The vacuum furnace is characterized in that a vacuum system (which is formed by carefully assembling a vacuum pump, a vacuum measuring device, a vacuum valve and the like) is utilized in a specific space of the furnace chamber to discharge substances in the furnace chamber, so that the pressure in the furnace chamber is smaller than a standard atmospheric pressure, and the vacuum state is realized in the space in the furnace chamber, namely the vacuum furnace. When the existing vacuum quenching furnace is used, materials are required to be sent into a furnace chamber, then the furnace chamber is vacuumized through vacuumizing equipment, heating and quenching are carried out after the vacuumization treatment, after the heating and quenching of the materials are completed, a furnace door is required to be opened, quenched materials are taken out, then new materials are put into the vacuum quenching furnace to be quenched again, the furnace door is required to be opened, so that the vacuum environment in the furnace is destroyed, the whole furnace chamber is required to be vacuumized again when the heat treatment is carried out again, a large amount of time and energy are required, the production efficiency is affected, the energy is not saved, the environment is protected, continuous heat treatment cannot be carried out by the existing vacuum quenching furnace, a large amount of preparation time is required for carrying out the heat treatment of the next furnace workpiece after the heat treatment of the one furnace workpiece is completed, and the efficiency is low. Disclosure of Invention The invention aims to solve the problems in the prior art, and provides a high-efficiency energy-saving vacuum quenching furnace and a heat treatment method thereof, wherein a plurality of independent chambers are arranged, the vacuum environment of other chambers can not be damaged in the material loading and unloading process, the other chambers can still work normally in the material loading and unloading process, the whole quenching furnace body is not required to be vacuumized after loading and unloading, the efficiency is improved, the energy consumption is reduced, and the continuous heat treatment of a workpiece can be realized. In order to achieve the above purpose, the invention provides a high-efficiency energy-saving vacuum quenching furnace, which comprises a quenching furnace body and a vacuumizing system matched with the quenching furnace body, wherein the quenching furnace body comprises a transition furnace body and a heating furnace body, the transition furnace body is transversely arranged, the heating furnace body is arranged on one side of the transition furnace body, a feeding chamber, a transferring chamber and a discharging chamber are sequentially arranged in the transition furnace body, a first sealing door is arranged between the transferring chamber and the feeding chamber, a second sealing door is arranged between the transferring chamber and the discharging chamber, a heating chamber and a heating part are arranged in the heating furnace body, the heating chamber is communicated with one side of the transferring chamber and is provided with a third sealing door, the quenching furnace body is also respectively provided with a feeding port and a discharging port which are communicated with the feeding chamber, the feeding port and the discharging port, a quenching chamber communicated with the transferring chamber is arranged on the lower side of the transferring chamber, a quenching medium is arranged in the quenching chamber, and a quenching mechanism used for transferring materials among the feeding chamber, the transferring chamber, the heating chamber and the quenching chamber is also arranged in the quenching furnace body. Preferably, the transferring mechanism comprises a lifting platform arranged in the transferring chamber and a lifting mechanism for driving the lifting platform to lift up and down, wherein a horizontally arranged transferring fork body and a fork body driving mechanism for driving the transferring fork body to move back and forth are arranged on the lifting platform, the lifting platform and the fork body driving mechanism horizontally rotate to enable the transferring fork body to move towards the feeding chamber, the discharging chamber and the heating chamber, and the fork body driving mechanism is matched with the rotating mechanism to drive the transferring fork body to extend into and withdraw from the feeding chamber, the discharging chamber and the heating chamber. Preferably, the rotating mechanism comprises a rotating platform arranged on the lifting platform, a rotating bearing ar