CN212645387U - Heat treatment furnace with silicon carbide rod heating body - Google Patents
Heat treatment furnace with silicon carbide rod heating body Download PDFInfo
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- CN212645387U CN212645387U CN202021493951.4U CN202021493951U CN212645387U CN 212645387 U CN212645387 U CN 212645387U CN 202021493951 U CN202021493951 U CN 202021493951U CN 212645387 U CN212645387 U CN 212645387U
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- furnace
- heat treatment
- brick
- heat
- elema
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 61
- 229910010271 silicon carbide Inorganic materials 0.000 title claims description 26
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims description 25
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 239000011449 brick Substances 0.000 claims description 57
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 229910052851 sillimanite Inorganic materials 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 10
- 238000007669 thermal treatment Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000005485 electric heating Methods 0.000 description 22
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a take heat treatment furnace of elema heat-generating body, the induction cooker comprises a cooker bod, furnace body one side opening to seal through the furnace gate at the opening side, the furnace body is with first resistant firebrick mat formation and is able to bear or endure firebrick as lateral wall and top surface, the lateral wall and the top surface inboard of furnace body are provided with elema heat-generating body as lateral wall electric heat-generating body and top surface electric heat-generating body, the bottom surface of furnace body uses first resistant firebrick as the basement, it has a blind groove to correspond the regional shaping of thermal treatment in the basement, be provided with elema heat-generating body in the blind groove as bottom surface electric heat-generating body to carry out the face through second resistant firebrick on the plane of bottom surface electric heat-generating. The utility model discloses be heated more fast, abundant, even when guaranteeing metal material thermal treatment, improved metal material's thermal treatment effect.
Description
Technical Field
The utility model relates to a metal material's hot working equipment technical field, concretely relates to take heat treatment furnace of elema heat-generating body.
Background
Heat treatment furnaces are a general term for a class of industrial furnaces that operate heat treatment processes on metallic materials. The furnace temperature of the heat treatment furnace is generally lower than that of the heating furnace, but the requirements on the furnace temperature, the uniformity of the furnace temperature and the furnace atmosphere are higher.
At present, a graphite rod electric heating mode is mostly adopted in a heat treatment furnace for heat supply, and the graphite rod electric heating unit is easy to oxidize in the using process, the heating power is attenuated, the attenuation cannot be judged, the maintenance amount is large, the using efficiency of the furnace is low, and the product quality is uncontrollable. Based on the defects of the graphite rod, a silicon-carbon rod is also adopted as a heating unit, the silicon-carbon rod is a rod-shaped or tubular nonmetal high-temperature electric heating element which is prepared by using high-purity green hexagonal SiC as a main raw material through high-temperature silicification recrystallization sintering, has the characteristics of high temperature resistance, oxidation resistance, corrosion resistance, quick temperature rise, long service life, small high-temperature deformation, convenience in installation and maintenance and the like, is matched with an automatic electric control system, can obtain accurate constant temperature, and can automatically adjust the temperature according to the requirements of the production process. With the increasingly complex heat treatment process and the improvement of process requirements, high requirements are also put forward on the material and design of a heating body in the industry, but when the existing heat treatment furnace utilizes a silicon carbide rod as an electric heating unit to be applied to the heat treatment furnace, the placing position of the existing heat treatment furnace is too simple, the metal material to be treated cannot be uniformly heated, the metal material is heated unevenly, the heat treatment time is longer, and certain influence can be generated on the processing of the corresponding metal material.
Disclosure of Invention
The technical problem solved by the utility model is to provide a heat treatment furnace with a silicon carbide rod heating body to solve the defects in the technical background.
The utility model provides a technical problem adopt following technical scheme to realize:
the utility model provides a take heat treatment furnace of elema heat-generating body, includes the furnace body, furnace body one side opening to seal through the furnace gate in the opening side, the furnace body is laid with first resistant firebrick and is regarded as lateral wall resistant firebrick and top surface resistant firebrick, the lateral wall and the top surface inboard of furnace body are provided with elema heat-generating body as lateral wall electric heat-generating body and top surface electric heat-generating body, the bottom surface of furnace body uses first resistant firebrick as the basement, it has a blind groove to correspond the regional shaping of heat treatment in the basement, be provided with the elema heat-generating body as bottom surface electric heat-generating body in the blind groove to carry out the face through opening the second resistant firebrick that has the grid hole on the plane that corresponds bottom surface electric heat-.
As a further limitation, the inner sides of the top surface refractory bricks and the side wall refractory bricks are lined with a layer of beta-Sialon combined SiC complex phase material brick to resist chemical erosion, scouring and thermal shock so as to prolong the service life of the furnace body.
As a further limitation, the side wall electric heating body and the top surface electric heating body adopt gun-shaped or U-shaped silicon carbide rods which are arranged in parallel.
The bottom electric heating element is a W-shaped silicon carbide rod.
As a further limitation, the bottom electric heating body is a double-layer silicon carbide rod heating body arranged in a staggered mode.
By way of further limitation, the first refractory brick is one of a sillimanite brick, a graphite brick and a corundum-mullite brick.
By way of further limitation, the second refractory brick is a SiC brick or Si brick3N4And combining the SiC complex phase material brick or the beta-Sialon SiC complex phase material brick.
As a further limitation, a furnace shell is arranged on the outer side of the furnace body, an inlet and an outlet of protective gas are respectively arranged on the upper part and the lower part of the furnace shell, and the furnace body components are protected by the protective gas.
Has the advantages that: the utility model discloses an utilize the cooperation of elema and furnace body structure to guarantee the even heating state after programming rate and the temperature stabilization in the stove, the accurate constant temperature in the stove can be guaranteed to the automatic electronic system of cooperation, when utilizing the heat treatment furnace that has above-mentioned technical characteristics to carry out thermal treatment to the metal, can carry out even heating at the metal surface for the metal is heated rapidly more and evenly, has further improved metal material's thermal treatment effect, guarantees the processingquality of metal material follow-up processing flow.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a top lining brick; 2. a top surface electric heater; 3. a furnace door; 4. a rib; 5. a side wall electric heating element; 6. a carbon felt; 7. a second refractory brick; 8. a blind groove; 9. a bottom surface electric heating element; 10. a furnace shell; 11. a first refractory brick; 12. lining bricks on the side wall; 13. a shielding gas inlet; 14. and a protective gas outlet.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1, in a preferred embodiment of a heat treatment furnace with a silicon carbide rod heating element, in this embodiment, a furnace body of the heat treatment furnace is built by anti-slip bricks, an outer side of the furnace body is wrapped by an iron furnace shell 10, a left side of the furnace body is opened and is sealed by a furnace door 3 at the opening side, and an inner side of the furnace shell 10 is built by corundum-mullite brick first refractory bricks 11 to form a base, while in another embodiment, the first refractory bricks 11 can also be silica line stone bricks or graphite bricks, wherein when the corundum-mullite brick or silica line stone brick is used as a base building material, the heat treatment furnace has larger thickness and strength, and when the graphite brick is used as a base building material, the heat treatment furnace pursues smaller size.
The matrix of the first refractory brick 11 leaves a space in the middle as a heat treatment chamber, and the first refractory brick 11 is used as a side wall and a top surface, in this embodiment, a top lining brick 1 and a side wall lining brick 12 are further formed on the inner sides of the side wall and the top surface corresponding to the first refractory brick 11, the top lining brick 1 and the side wall lining brick 12 are both beta-Sialon-SiC complex phase material bricks, and the inner surfaces of the first refractory bricks 11 lining the side wall and the top surface are used for resisting chemical erosion, scouring and thermal shock, so as to prolong the service life of the furnace body. The top surface electric heating body 2 and the side wall electric heating body 5 are arranged at the inner sides of the corresponding top surface lining brick 1 and the corresponding side wall lining brick 12, the top surface electric heating body 2 and the side wall electric heating body 5 both adopt U-shaped silicon carbide rods arranged in parallel, a transverse convex rib 4 is formed on the corresponding inner side surface of the side wall lining brick 12, and the side wall electric heating body 5 is abutted against the surface of the convex rib 4 to prevent the side wall electric heating body 5 from directly contacting with the side wall lining brick 12.
The furnace body is provided with a blind groove 8 corresponding to the heat treatment area on the bottom surface of the base body of the first refractory brick 11, a bottom electric heating body 9 is arranged at the bottom of the blind groove 8, in the embodiment, the bottom electric heating body 9 is a staggered double-layer silicon carbon rod heating body, an upper silicon carbon rod heating body and a lower silicon carbon rod heating body in the double-layer silicon carbon rod heating body are both W-shaped silicon carbon rods, a surface is sealed by taking a SiC brick group with grid holes as a second refractory brick 7 on the arrangement plane of the bottom electric heating body 9, and a carbon felt 6 with the thickness of 3mm is further paved on the surface of the second refractory brick 7. In another embodiment, the second refractory brick 7 may be made of Si with grid holes3N4The similar bottom surface soaking effect can be obtained by combining the SiC complex phase material brick or the beta-Sialon combined SiC complex phase material brick with grid holes for replacement.
In this embodiment, the upper part and the lower part of the right side of the furnace shell 10 are respectively provided with a shielding gas inlet 13 and a shielding gas outlet 14, and the shielding gas inlet 13 and the shielding gas outlet 14 are communicated with the heat treatment chamber and can protect the furnace body components by introducing the shielding gas into the heat treatment chamber.
When the heat treatment of the embodiment is used, firstly, the furnace door 3 is opened, the metal material to be treated is contained by a graphite dish or other high-temperature resistant inert container, and is put into the heat treatment cavity of the furnace body, and the furnace door 3 is closed, so that the furnace forms a relatively sealed whole, namely, the top surface electric heating body 2, the side wall electric heating body 5 and the bottom surface electric heating body 9 can be electrified and kept for heat treatment. Protective process gas can be circularly introduced through the protective gas inlet 13 and the protective gas outlet 14 to prevent air and the like from entering the heat treatment cavity in the heat treatment process and after the heat treatment is finished, and inert protective gas is introduced into the furnace shell 10 to protect the outer wall of the heat treatment cavity, the heating element and the heat insulation material.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes, modifications and/or alterations to the present invention may be made by those skilled in the art after reading the technical disclosure of the present invention, and all such equivalents may fall within the scope of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides a take heat treatment furnace of elema heat-generating body, its characterized in that, includes the furnace body, furnace body one side opening to seal through the furnace gate at the opening side, the furnace body is laid with first resistant firebrick and is regarded as lateral wall resistant firebrick and top surface resistant firebrick, the lateral wall of furnace body and top surface inboard are provided with elema heat-generating body as lateral wall electric heat-generating body and top surface electric heat-generating body, the bottom surface of furnace body uses first resistant firebrick as the basement, it has a blind groove to correspond the heat treatment regional shaping on the basement, be provided with the elema heat-generating body in the blind groove as bottom surface electric heat-generating body to go on the plane that corresponds bottom surface electric heat-generating body in the blind groove through opening the second resistant firebrick of grid hole.
2. A heat treatment furnace for a heating body with a silicon carbide rod as described in claim 1, wherein a layer of β -Sialon bonded SiC multiphase material brick is lined on the inner sides of said top surface refractory brick and said side wall refractory brick.
3. A heat treatment furnace with a elema heater according to claim 1, wherein the side wall electric heater and the top surface electric heater are gun-shaped or U-shaped elema arranged side by side.
4. A heat treatment furnace having a elema heater according to claim 1, wherein the bottom surface electric heater is a W-shaped elema.
5. A heat treatment furnace with a elema heater according to claim 1, wherein the bottom surface electric heater is a double-layer elema heater disposed in a staggered manner.
6. The heat treatment furnace with a heating element of a silicon carbide rod as claimed in claim 1, wherein the first refractory brick is one of a sillimanite brick, a graphite brick and a corundum-mullite brick.
7. The heat treatment furnace of a exothermic body with SiC rod according to claim 1, wherein the second refractory brick is an SiC brick or an Si brick3N4And combining the SiC complex phase material brick or the beta-Sialon SiC complex phase material brick.
8. The heat treatment furnace with a silicon carbide rod heating element as claimed in claim 1, wherein a furnace shell is provided outside the furnace body, and an inlet and an outlet for a protective gas are provided respectively at an upper part and a lower part of the furnace shell, so that the furnace body components are protected during the heat treatment by introducing the protective gas through the furnace shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493951.4U CN212645387U (en) | 2020-07-27 | 2020-07-27 | Heat treatment furnace with silicon carbide rod heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493951.4U CN212645387U (en) | 2020-07-27 | 2020-07-27 | Heat treatment furnace with silicon carbide rod heating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212645387U true CN212645387U (en) | 2021-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021493951.4U Active CN212645387U (en) | 2020-07-27 | 2020-07-27 | Heat treatment furnace with silicon carbide rod heating body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212645387U (en) |
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2020
- 2020-07-27 CN CN202021493951.4U patent/CN212645387U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A kind of heat treatment furnace with silicon carbide rod heating body Effective date of registration: 20230117 Granted publication date: 20210302 Pledgee: Agricultural Bank of China Limited Zhuzhou High-tech Development Zone Sub-branch Pledgor: ZHUZHOU AMALLOY MATERIAL Co.,Ltd. Registration number: Y2023980031272 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210302 Pledgee: Agricultural Bank of China Limited Zhuzhou High-tech Development Zone Sub-branch Pledgor: ZHUZHOU AMALLOY MATERIAL Co.,Ltd. Registration number: Y2023980031272 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A heat treatment furnace with silicon carbon rod heating element Granted publication date: 20210302 Pledgee: Agricultural Bank of China Limited Zhuzhou branch Pledgor: ZHUZHOU AMALLOY MATERIAL Co.,Ltd. Registration number: Y2024980012175 |