CN210157414U - Electrode bar for copper and copper alloy casting furnace - Google Patents
Electrode bar for copper and copper alloy casting furnace Download PDFInfo
- Publication number
- CN210157414U CN210157414U CN201920807093.7U CN201920807093U CN210157414U CN 210157414 U CN210157414 U CN 210157414U CN 201920807093 U CN201920807093 U CN 201920807093U CN 210157414 U CN210157414 U CN 210157414U
- Authority
- CN
- China
- Prior art keywords
- gradient temperature
- temperature zone
- gradient
- copper
- section
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 20
- 239000010949 copper Substances 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims abstract description 10
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000008207 working material Substances 0.000 claims 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 14
- 229910010271 silicon carbide Inorganic materials 0.000 description 14
- 238000003723 Smelting Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal 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
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an electrode bar for copper and copper alloy casting furnace, the electrode bar body is a U-shaped silicon carbon bar, comprising a heating area and a cold end, the heating area comprises three sections of gradient heating temperature areas with different resistance values, wherein, the first gradient temperature area is the U-shaped head part of the U-shaped silicon carbon bar, comprising a middle connecting section and a straight rod section, and the middle connecting section is provided with a spiral blind groove; the second gradient temperature zone is a spiral section, and the resistance value of the second gradient temperature zone is positioned between the first gradient temperature zone and the third gradient temperature zone; the length ratio of the straight rod section of the first gradient temperature zone to the second gradient temperature zone is 2: 5-1: 2, and the third gradient temperature zone is a straight pipe end, and the tail end of the third gradient temperature zone is connected with the cold end. The utility model discloses the temperature control precision is high, and the heating is convenient, can realize the sectional type heating of copper and copper alloy in the founding stove, realizes the requirement that has different warm areas in a stove to extension equipment life, and improve the product quality.
Description
Technical Field
The utility model relates to a firing equipment technical field in the founding furnace technique, concretely relates to electrode bar for copper and copper alloy founding furnace.
Background
At present, in the field of copper and copper alloy processing, a casting furnace is often used, wherein the furnace is mostly heated by adopting a graphite rod electric heating mode, 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, so that the furnace is low in using efficiency and uncontrollable in product quality. 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 silicon carbide 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.
However, the existing silicon-carbon rods have various forms, such as a straight rod type, a U-shaped rod type, a W-shaped rod type, a gun type and the like, but the problem that the heat generated inside the heating section can be gathered in the inner cavity of the hollow rod body and cannot be normally dissipated outwards, so that the heating efficiency of the silicon-carbon rod is low is generally solved. Meanwhile, when the silicon carbide rod is used, the temperature of the whole rod body is uniform, and in a furnace body requiring sectional heating, in practical application, different temperature zones are sometimes required in one furnace, particularly, when copper or copper alloy is smelted, a certain temperature needs to be kept at an outlet of molten metal, so that a high-temperature zone needs to be arranged at an outlet end of a casting furnace, the purpose cannot be achieved by the existing silicon carbide rod, and the application of the silicon carbide rod with a single resistance value is hindered. Based on the above situation, some manufacturers have designed some temperature-variable sections of silicon carbide rods, such as the following new patents: zl201620218791.x discloses a multi-segment controllable heating zone silicon carbide rod, but the structure of the silicon carbide rod is too simple, and in the practical application process, cracks are likely to occur between temperature zones after long-time application due to the problem of internal heat accumulation, and in addition, the condition of uneven oxidation is likely to occur after long-time use, and when the oxidation degree of a part of temperature zones is higher, the surface of the silicon carbide rod of the part of temperature zones is relatively new, which is likely to cause waste, so that the application of the silicon carbide rod is obstructed.
Disclosure of Invention
The technical problem solved by the utility model is to provide an electrode bar for copper and copper alloy casting furnace to solve the defects in the technical background.
The utility model provides a technical problem adopt following technical scheme to realize:
an electrode rod for a copper and copper alloy casting furnace is provided, the rod body of the electrode rod is a U-shaped silicon carbon rod and comprises a heating area and a cold end, wherein the heating area comprises three gradient heating temperature areas with different resistance values, the three gradient heating temperature areas are sequentially divided into a first gradient temperature area, a second gradient temperature area and a third gradient temperature area from the side far away from the cold end to the cold end, the first gradient temperature area is the U-shaped head part of the U-shaped silicon carbon rod and comprises a middle connecting section and a straight rod section connected with the two ends of the middle connecting section, and a spiral blind groove is formed in the middle connecting section; the second gradient temperature zone is a spiral section, and the resistance value of the second gradient temperature zone is positioned between the first gradient temperature zone and the third gradient temperature zone; the length ratio of the straight rod section of the first gradient temperature zone to the second gradient temperature zone is 2: 5-1: 2, and the third gradient temperature zone is a straight pipe end, and the tail end of the third gradient temperature zone is connected with the cold end.
By way of further limitation, the length ratio of the straight rod section of the first gradient temperature zone, the second gradient temperature zone and the third gradient temperature zone is preferably 3:5: 1.
As a further limitation, the heating area is formed by blank manufacturing by taking high-purity silicon carbide as a main raw material and sintering at high temperature, the heating areas with different resistance values can be prepared by the existing process, the resistance value of the first gradient temperature area is 1.75-1.8 times of that of the second gradient temperature area, and the resistance value of the second gradient temperature area is 1.2-1.3 times of that of the third gradient temperature area.
By way of further limitation, the cold end is installed outside the casting furnace in a perforation mode, the diameter of the perforation on the casting furnace is 1.5-1.8 times of the diameter of the cold end, and gaps of the cold end are filled and blocked with asbestos or aluminum silicate fibers.
By way of further limitation, the cold end has a material surface temperature of no more than 70 ℃ during normal operation of the connection to the power supply.
As a further limitation, the spiral section of the second gradient temperature zone is a hollowed spiral section or a blind groove spiral section, when the diameter of the second gradient temperature zone is greater than 5cm, the hollowed spiral section is preferably adopted, and when the diameter of the second gradient temperature zone is less than or equal to 5cm, the blind groove spiral section is preferably adopted.
By way of further limitation, the second gradient temperature zone comprises a straight pipe body with the same outer diameter as the third gradient temperature zone, and the thread is directly formed on the surface of the straight pipe body.
Has the advantages that: the utility model discloses a carry out structural design to the elema, the controllable district elema that generates heat of design cooperation multistage through the multistage formula structure is as electric heating element, calorific capacity is stable, it is fast to heat up, the oxidation volume is extremely low, the maintenance volume reduces substantially, simultaneously, the heat of the inside of the first gradient warm area and the second gradient warm area of the branch of generating heat as the owner can distribute out through the adjacent spiral of banded surface, the heat dissipation is fast, the radiating efficiency is high, the combination of above-mentioned technique enables the thermal efficiency of elema to improve more than 50%, the heating is convenient, safety and reliability, can be applied to in various electric heating kilns, can realize the requirement that has different warm areas in the stove, especially, be fit for being applied to in copper or copper alloy founding furnace.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a structural diagram of the second gradient temperature zone according to the first embodiment of the present invention.
Fig. 3 is a structural diagram of the second gradient temperature zone according to the second embodiment of the present invention.
Fig. 4 is a structural diagram of the second gradient temperature zone according to the third embodiment of the present invention.
Wherein: 1. a cold end; 2. a third gradient temperature zone; 3. a second gradient temperature zone; 4. a first gradient temperature zone; 5. an intermediate connecting section.
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 and 2, in the preferred embodiment of the electrode rod for copper and copper alloy smelting furnace, the electrode rod is a U-shaped silicon carbide rod and is arranged in the smelting furnace, the smelting furnace is used for smelting copper and copper alloy, the electrode rod comprises a heating area and a cold end 1, the cold end 1 is arranged outside the smelting furnace in a perforation mode, the diameter of the perforation on the smelting furnace is 1.6 times of the diameter of the cold end 1, the gap between the cold end 1 and the cold end is filled, blocked and closed by asbestos or aluminum silicate fiber, and the surface temperature of the material on the cold end 1 is not more than 70 ℃ through material selection during the normal operation of connecting a power supply.
The heating areas are all made of high-purity silicon carbide as a main raw material, and are formed by high-temperature sintering, and each heating area comprises a first gradient temperature area 4, a second gradient temperature area 3 and a third gradient temperature area 2, and the difference is that materials with different resistance values are adopted for sintering preparation. The first gradient temperature zone 4 is a U-shaped head part of a U-shaped silicon carbide rod and comprises straight pipe sections on two sides and a middle connecting section 5 for connecting the straight pipe sections on the two sides. The middle connecting section 5 is provided with a spiral blind groove, the tail end of the straight pipe section is respectively connected with the second gradient temperature areas 3 at two sides and is connected with the third gradient temperature area 2 through the second gradient temperature areas 3, wherein the resistance value of the first gradient temperature area 4 is 1.8 times that of the second gradient temperature area, the resistance value of the second gradient temperature area is 1.3 times that of the third gradient temperature area, and meanwhile, the length ratio of the straight rod section of the first gradient temperature area 4, the second gradient temperature area 3 and the third gradient temperature area 2 is 3:5: 1.
In the present embodiment, the diameter of the second gradient temperature zone 3 is 5cm, and the spiral structure of the second gradient temperature zone 3 is a blind groove spiral, as shown in fig. 2.
In the second embodiment, the diameter of the second gradient temperature zone 3 is 7cm, and the spiral structure of the second gradient temperature zone 3 is a hollow spiral, as shown in fig. 3.
In the third embodiment, the spiral structure of the second gradient temperature zone 3 is a spiral line structure formed on the surface of the straight pipe body, and the outer diameter of the straight pipe body serving as the forming base of the spiral line structure is consistent with that of the third gradient temperature zone.
When the electrode bar works normally, the temperature of the first gradient temperature zone 4 can be kept in the second gradient temperature zone 3, the compensation of the outlet temperature of the casting furnace is mainly ensured, and the second gradient temperature zone 3 is higher than the third gradient temperature zone 2 so as to ensure the normal furnace temperature; the third gradient temperature zone 2 is a transition temperature zone and is used for preventing the silicon carbide rod and the cold end 1 from being easily broken due to too large temperature difference; and the cold end 1 is arranged outside the casting furnace and is connected with a power supply.
The electrode rod of this embodiment makes the elema to carry out institutional advancement on the elema, can carry out the subregion section according to the smelting production requirement of copper, copper alloy and generate heat, each section heating temperature is different, fine control the problem that the copper water is on the low side at exit temperature.
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 (7)
1. The electrode rod for the copper and copper alloy casting furnace is characterized in that an electrode rod body is a U-shaped silicon carbon rod and comprises a heating area and a cold end, wherein the heating area comprises three gradient heating temperature areas with different resistance values, the three gradient heating temperature areas are sequentially divided into a first gradient temperature area, a second gradient temperature area and a third gradient temperature area from the side far away from the cold end to the cold end, the first gradient temperature area is the U-shaped head part of the U-shaped silicon carbon rod and comprises a middle connecting section and a straight rod section connected with the two ends of the middle connecting section, and a spiral blind groove is formed in the middle connecting section; the second gradient temperature zone is a spiral section, and the resistance value of the second gradient temperature zone is positioned between the first gradient temperature zone and the third gradient temperature zone; the length ratio of the straight rod section of the first gradient temperature zone to the second gradient temperature zone is 2: 5-1: 2, and the third gradient temperature zone is a straight pipe end, and the tail end of the third gradient temperature zone is connected with the cold end.
2. The electrode rod for copper and copper alloy casting furnace according to claim 1, wherein the length ratio of the straight rod section of the first gradient temperature zone, the second gradient temperature zone and the third gradient temperature zone is 3:5: 1.
3. The electrode rod for copper and copper alloy casting furnace according to claim 1, wherein the resistance value of the first gradient temperature zone is 1.75 to 1.8 times of the resistance value of the second gradient temperature zone, and the resistance value of the second gradient temperature zone is 1.2 to 1.3 times of the resistance value of the third gradient temperature zone.
4. The electrode rod for copper and copper alloy casting furnace as claimed in claim 1, wherein the cold end is installed outside the furnace by means of perforation, the diameter of the perforation on the furnace is 1.5-1.8 times of the diameter of the cold end, and the gap is filled with asbestos or aluminum silicate fiber.
5. Electrode rod for copper and copper alloys casting furnaces according to claim 1 characterised in that the cold end working material surface temperature does not exceed 70 ℃.
6. The electrode rod for copper and copper alloy casting furnace according to claim 1, wherein the spiral section of the second gradient temperature zone is a hollowed spiral section when the diameter of the second gradient temperature zone is more than 5 cm.
7. The electrode rod for copper and copper alloy casting furnace according to claim 1, wherein the spiral section of the second gradient temperature zone is a blind groove spiral section when the diameter of the second gradient temperature zone is 5cm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807093.7U CN210157414U (en) | 2019-05-31 | 2019-05-31 | Electrode bar for copper and copper alloy casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807093.7U CN210157414U (en) | 2019-05-31 | 2019-05-31 | Electrode bar for copper and copper alloy casting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210157414U true CN210157414U (en) | 2020-03-17 |
Family
ID=69761270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920807093.7U Active CN210157414U (en) | 2019-05-31 | 2019-05-31 | Electrode bar for copper and copper alloy casting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210157414U (en) |
-
2019
- 2019-05-31 CN CN201920807093.7U patent/CN210157414U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2591952C (en) | Launder for casting molten copper | |
| CN112210676A (en) | Electromagnetic induction heating composite crucible | |
| CN202199884U (en) | Horizontal unmuffled pusher-type continuous brazing furnace | |
| CN102427621B (en) | Immersive electrical heating pipe for melting and insulating aluminum/zinc metal | |
| CN210157414U (en) | Electrode bar for copper and copper alloy casting furnace | |
| CN212870727U (en) | Intermediate frequency induction melting furnace capable of improving melting efficiency | |
| RU2487946C2 (en) | Method of making cooling element for pyrometallurgical reactor and cooling element | |
| CN202310153U (en) | Immersion electric heating tube for aluminum/zinc melting and heat insulation | |
| CN106521711A (en) | Horizontal direct-current resistance type continuous ultrahigh temperature graphitizing furnace | |
| CN103388055B (en) | Furnace beam and vertical column fire-resistant thermal insulation lining structure of walking beam furnace for heating high-temperature oriented silicon steel and manufacturing method of structure | |
| US3171871A (en) | Method of making electrical heater bars | |
| CN206160726U (en) | Aluminum alloy melts stove | |
| US3576385A (en) | Electrode for a glass furnace | |
| CN213002553U (en) | Heating pipe and heating device of die casting machine | |
| CN203336960U (en) | Water-free cooling induction heating smelting furnace | |
| RU110174U1 (en) | HEATING UNIT FOR TUBULAR ELECTRIC RESISTANCE FURNACES | |
| CN207716865U (en) | A kind of highly-purity magnesite stove furnace lining fixed structure | |
| CN1357739A (en) | Heat-insualting method and prepn. of combined heat insulating layer with great temperature gradient | |
| WO2019235474A1 (en) | Immersion heater for non-ferrous molten metal | |
| CN201248152Y (en) | Electrical bar for electric melting furnace | |
| KR20100108558A (en) | Device for shaping melts made of inorganic oxides or minerals having improved heating unit | |
| JP5586916B2 (en) | MoSi2 heating element and method of manufacturing the same | |
| CN104219811B (en) | A kind of composite graphite electrode and preparation method thereof | |
| CN208620822U (en) | Melting furnace is used in a kind of preparation of alloy | |
| CN219713961U (en) | Vacuum furnace for sintering silicon carbide roller |
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: Electrode rod for copper and copper alloy melting and casting furnace Effective date of registration: 20230117 Granted publication date: 20200317 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: 20200317 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: Electrode rods for copper and copper alloy melting and casting furnaces Granted publication date: 20200317 Pledgee: Agricultural Bank of China Limited Zhuzhou branch Pledgor: ZHUZHOU AMALLOY MATERIAL Co.,Ltd. Registration number: Y2024980012175 |