CN-224230666-U - Heating device for be used for zirconia melting sintering

CN224230666UCN 224230666 UCN224230666 UCN 224230666UCN-224230666-U

Abstract

The utility model discloses a heating device for zirconia fused sintering, which belongs to the technical field of heating equipment, and comprises a furnace chamber, wherein one side of the furnace chamber is fixedly connected with a mounting seat, the top of the mounting seat is vertically provided with a hydraulic cylinder, the top of the hydraulic cylinder is provided with a lifting frame, the top opening of the furnace chamber is provided with a sealing furnace cover, the sealing furnace cover is fixed at the bottom of the lifting frame, a heating cavity is arranged in the side wall of the furnace chamber, a high-frequency induction coil is arranged in the heating cavity, a resistance heating body is vertically arranged in the center position of the inner bottom wall of the furnace chamber, a resistance heating body in the center position of the furnace chamber can be matched with the resistance heating body in the side wall of the furnace chamber, induction and radiation dual-mode heating is formed, the resistance heating is utilized to realize rapid heating, and the resistance heating maintains high-temperature stability, so that the efficiency of zirconia fused sintering is greatly improved.

Inventors

WANG XIAOWU
LIU CHANGHE
LIU CHANGQING
ZHOU PISHENG
GAO XUJUN
LIU SHIKE

Assignees

青岛欧维斯节能材料有限公司

Dates

Publication Date: 20260512
Application Date: 20250612

Claims (6)

1. A heating device for zirconia fusion sintering comprises a furnace (1) and is characterized in that one side of the furnace (1) is fixedly connected with a mounting seat (2), a hydraulic cylinder (3) is vertically arranged at the top of the mounting seat (2), a lifting frame (4) is arranged at the top end of the hydraulic cylinder (3), a sealing furnace cover (5) is arranged at the top opening of the furnace (1), the sealing furnace cover (5) is fixed at the bottom of the lifting frame (4), a heating cavity (6) is formed in the side wall of the furnace (1), a high-frequency induction coil (7) is arranged in the heating cavity (6), a resistance heating body (8) is vertically arranged at the center position of the inner bottom wall of the furnace (1), and an inner barrel (9) is arranged in the furnace (1).
2. The heating device for zirconia fused sintering according to claim 1, wherein the high-frequency induction coil (7) is of a spiral copper pipe structure, and a water cooling channel is arranged inside the high-frequency induction coil (7).
3. The heating device for zirconia fused sintering according to claim 1, wherein both ends of the high-frequency induction coil (7) extend to the outside of the hearth (1) and are fixedly connected with a water inlet interface (10) and a water outlet interface (11) respectively.
4. A heating apparatus for zirconia fused sintering according to claim 1, wherein the outer circumferences of both extension ends of said high-frequency induction coil (7) are fixedly connected with connection terminals (12).
5. A heating device for zirconia fused sintering according to claim 1, wherein the lifting frame (4) comprises a supporting arm (401) fixed at the top output end of the hydraulic cylinder (3), one end of the supporting arm (401) is fixedly connected with a mounting frame (402), and the sealing furnace cover (5) is fixed at the bottom of the mounting frame (402).
6. The heating device for zirconia fusion sintering according to claim 1, wherein the resistance heating body (8) is embedded in the inner barrel (9), the heat conducting sleeve (13) is fixedly connected to the center of the inner bottom wall of the inner barrel, and the resistance heating body (8) is embedded in the heat conducting sleeve (13).

Description

Heating device for be used for zirconia melting sintering Technical Field The utility model relates to the technical field of heating equipment, in particular to a heating device for zirconia fusion sintering. Background Zirconia is a high-performance inorganic nonmetallic material and is widely applied to the fields of dental restoration, biomedicine, aerospace, industry and the like. At present, the fused sintering of zirconia needs to be carried out at a high temperature of 1600-2000 ℃, the existing heating device mainly relies on a single resistance heating mode to carry out fused sintering, the heating speed of a resistance heating body is often slower, and the fused sintering efficiency of zirconia is lower, meanwhile, the traditional heating device usually needs to be manually uncovered, when abnormal sintering occurs in the device, manual intervention is needed, and certain potential safety hazards exist in the high-temperature environment of the device, so that research and improvement are carried out on the existing structure in order to achieve the purpose of more practical value. Disclosure of utility model 1. Technical problem to be solved Aiming at the problems existing in the prior art, the utility model aims to provide a heating device for zirconia fusion sintering, which can be used for arranging a high-frequency induction coil in a heating cavity in the side wall of a hearth, and matching with a resistance heating body in the central position in the hearth to form induction and radiation dual-mode heating, realizing rapid temperature rise by using the induction heating, maintaining high-temperature stability by using the resistance heating, greatly improving the zirconia fusion sintering efficiency, and simultaneously realizing automatic opening and closing of a sealing furnace cover by additionally arranging a hydraulic cylinder and a lifting frame, thereby improving the use safety performance of the device. 2. Technical proposal In order to solve the problems, the utility model adopts the following technical scheme. The utility model provides a heating device for zirconia melting sintering, includes furnace, one side fixedly connected with mount pad of furnace, the pneumatic cylinder is vertically installed at the top of mount pad, the top of pneumatic cylinder is provided with the crane, furnace's top opening part is provided with sealed bell, sealed bell is fixed in the bottom of crane, the heating chamber has been seted up in furnace's the lateral wall, the inside in heating chamber is provided with high frequency induction coil, resistance heating member is vertically installed to furnace's interior bottom wall central point put, furnace's inside is provided with interior bucket. Furthermore, the high-frequency induction coil is of a spiral copper pipe structure, and a water cooling channel is arranged in the high-frequency induction coil. Furthermore, both ends of the high-frequency induction coil extend to the outside of the hearth, and are fixedly connected with a water inlet interface and a water outlet interface respectively. Furthermore, the peripheries of the two extending ends of the high-frequency induction coil are fixedly connected with wiring terminals. Further, the crane comprises a supporting arm fixed at the top output end of the hydraulic cylinder, one end of the supporting arm is fixedly connected with a mounting frame, and the sealing furnace cover is fixed at the bottom of the mounting frame. Further, the resistance heating body is embedded in the heat conducting sleeve, and the center of the inner bottom wall of the inner barrel is fixedly connected with the heat conducting sleeve. 3. Advantageous effects Compared with the prior art, the utility model has the advantages that: (1) According to the scheme, the high-frequency induction coil is arranged in the heating cavity in the side wall of the hearth and matched with the resistance heating body at the central position inside the hearth, so that induction and radiation dual-mode heating is formed, rapid heating is realized by using induction heating, high-temperature stability is maintained by resistance heating, and the zirconia melting and sintering efficiency is greatly improved. (2) According to the scheme, the hydraulic cylinder and the lifting frame are additionally arranged, so that the sealing furnace cover can be automatically opened and closed, and when sintering abnormality occurs in the device, the manual uncovering is not needed, so that the use safety performance of the device is greatly improved. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic cross-sectional view of the present utility model; FIG. 3 is a schematic side plan view of the present utility model; fig. 4 is a schematic diagram of a high frequency induction coil position structure according to the present utility model. The reference numerals in the figures illustrate: 1.