CN102901352A - Method for repairing melting groove copper mold for inductor of core frequency induction furnace - Google Patents
Method for repairing melting groove copper mold for inductor of core frequency induction furnace Download PDFInfo
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- CN102901352A CN102901352A CN2012104302162A CN201210430216A CN102901352A CN 102901352 A CN102901352 A CN 102901352A CN 2012104302162 A CN2012104302162 A CN 2012104302162A CN 201210430216 A CN201210430216 A CN 201210430216A CN 102901352 A CN102901352 A CN 102901352A
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Abstract
The invention discloses a method for repairing a melting groove copper mold for an inductor of a core frequency induction furnace. According to the method, a melting groove can conduct electricity and smooth melting can be realized in initial melting; and finally normal production is realized. Holes are drilled in a groove breaking part of the melting groove copper mold; 50-mesh to 200-mesh conductive copper powder is filled into the groove breaking part; the copper powder is hit firmly; a conical copper rod is embedded in the drilled holes and knocked firmly; cut fine copper pieces are firmly embedded into the edge part of the conical copper rod; after a hydropower test is passed, power is transmitted to turn on the furnace until the melting groove copper mold can realize normal production. By the method, the reuse of the inductor of the core frequency induction furnace is ensured; the service life of the inductor is prolonged; the furnace building cost and the furnace hitting cost of the core frequency induction furnace are saved; the production cost of a product is reduced; and the time efficiency in the production is achieved.
Description
Technical field
The invention belongs to the technical field of the inductor channel copper mold reparation of core line frequency furnace, relate generally to a kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged.
Background technology
In the capital equipment of production of copper alloy, frequency cored induction furnace has adopted the in the world heavy in section jet flow channel pattern of approval of the same trade, the situation that can effectively prevent melt overheat and cause ingot quality to degenerate occurs, and the stirring of fully flowing of melt has guaranteed the full and uniform of chemical composition.The inductor channel is the thermal source center that frequency cored induction furnace carries out electromagnetic induction, and the melt in the channel is realized the melting fusing of alloy by the melt heat conduction in body of heater.What have that the core line frequency furnace relatively easily goes wrong is copper mold fracture in the channel, causes stopping, the blow-on failure, can't normally produce.Channel copper mold fracture means that inductor scraps, and needs again cupola drop.If can repair the channel copper mold, it is reconnected and reuse, will save a large amount of cupola drop costs.
The channel copper mold of core line frequency furnace inductor is arranged in blowing out and blow-on process, presents the process of cooled and solidified and heat fused, stop, blow-on in the situation, the phenomenon of channel copper mold fracture can occur improperly, is called for short disconnected ditch.Occur disconnected ditch reason the following aspects is arranged: the one, the copper liquid of channel copper mold does not stay enough during blowing out, causing the cooling of channel copper mold to be shunk does not have enough copper liquid to replenish and disconnected ditch; The 2nd, it is too many that copper solution is stayed, the upper prop of channel copper mold has little time fusing and causes disconnected ditch in blow-on, the 3rd, owing to cover not tight, channel copper mold upper prop cools off first when causing blowing out, the disconnected ditch so that do not have the feeding of copper liquid in the channel copper mold cooling procedure, the 4th, there is scum silica frost to stop up in the channel copper mold and causes disconnected ditch.After the channel copper mold process reparation with disconnected ditch, by again changing logical and returning to normal production, just can realize that the induction furnace inductor continues use.
Summary of the invention
The objective of the invention is to propose a kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged, the channel copper mold is reconnected repair and realize reusing, save a large amount of cupola drop costs.
For finishing the foregoing invention purpose, the technical solution used in the present invention is: a kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged, and its concrete operation step is:
A, in the disconnected ditch position of channel copper mold boring (8), measure tomography (6) degree of depth of channel copper mold, carry out the calculating of volume and weight according to the measured value of channel copper mold tomography (6) degree of depth;
B, weight are calculated
Required copper powder weight=copper mold tomography volume * 8.9 g/cm
3
The density of In Crystal Solid Copper is 8.9 g/cm
3, the density of copper powder is 7.57 g/cm
3Therefore, in repair process, will fill the copper powder of channel copper mold tomography (6) and build reality, and make the final densities of copper powder near the density of In Crystal Solid Copper, and avoid the channel copper mold in playing molten process, the phenomenon of disconnected ditch again occur;
C, copper powder granularity requirements: 50 orders～200 orders;
Pour into copper powder in d, the hole, beat build solid; Embed boring (8) with taper copper rod (7) and strike reality, and firm in the embedding of taper copper rod (7) limit section with the thin copper sheet (5) of shearing, make channel copper mold tomography (6) and copper powder and taper copper rod (7) and thin copper sheet (5) close contact conduction;
E, logical cooling water, send electric 240V to check in short-term whether major loop, control loop and cooling water system be normal; After confirming normally, send and establish stove by cable, the close observation instrument shows and channel copper mold situation, until copper channel modelling is logical, and normal production.
The present invention has realized the successful reparation of channel copper mold by said method, guaranteed to have the inductor of core line frequency furnace to repeat to continue to use, prolonged the service life of inductor, saving has brickwork, the cupola drop expense of core line frequency furnace inductor, reduce the production cost of product, the time benefit in having striven for producing.
Description of drawings
Fig. 1 is the structural representation of channel copper mold among the present invention.
Fig. 2 is that the disconnected ditch in channel copper mold A place is repaired schematic diagram among the present invention.
Fig. 3 is that the disconnected ditch in channel copper mold B place is repaired schematic diagram among the present invention.
Fig. 4 is that the disconnected ditch in channel copper mold C place is repaired schematic diagram among the present invention.
Among the figure: 1, channel copper mold side column, 2, channel copper mold center pillar, 3, channel copper mold upper prop, 4, channel copper mold lower prop, 5, thin copper sheet, 6, the tomography of the disconnected ditch of channel copper mold, A, B, C three places are positions of channel copper mold easy fracture, 7, the taper copper rod, 8, boring.
The specific embodiment
The embodiment that provides is by reference to the accompanying drawings further specified the present invention:
Embodiment 1:
A kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged, when the disconnected ditch of channel copper mold occured at the B place, its concrete operation step was:
A, in the disconnected ditch position of channel copper mold boring 8, aperture Φ 30 measures tomography 6 degree of depth of channel copper mold, carries out the calculating of volume and weight according to the measured value of the channel copper mold tomography degree of depth.
B, weight are calculated
If the degree of depth that the tomography 6 of the disconnected ditch of channel copper mold is measured is 3cm, the wide 12cm of channel copper mold, thick 11cm, the copper powder volume that needs is 3*11*12=396cm
3
Required copper powder weight=copper mold tomography volume 396cm
3* 8.9 g/cm
3(density of In Crystal Solid Copper)=3000g.
The density of In Crystal Solid Copper is 8.9 g/cm
3, the density of copper powder is about 7.57 g/cm
3The density of the density ratio solid copper of copper powder hangs down 15% approximately, therefore, in repair process, only have the copper powder of filling channel copper mold tomography 6 is built reality, just can make the final densities of copper powder near the density of In Crystal Solid Copper, the channel copper mold is in playing molten process, channel copper mold center pillar 2 does not plan a successor 6 after the copper powder fusing, just can avoid again occurring the phenomenon of disconnected ditch.
C, copper powder granularity requirements: 50 orders～200 orders.
Pour into copper powder in d, the hole, beat build solid; Embed boring 8 with taper copper rod 7 and strike reality, and firm in the embedding of limit section with the thin copper sheet 5 of shearing, make channel copper mold tomography 6 and copper powder and taper copper rod 7 and thin copper sheet 5 close contacts conduction.
E, logical cooling water, send electric 240V to check in short-term whether major loop, control loop and cooling water system be normal; After confirming normally, send and establish stove by cable, the close observation instrument shows and channel copper mold situation;
After f, channel copper moldization were led to, whether the parameters such as inspection water power were normal.
There is the channel copper mold repair process of core line frequency furnace inductor all to finish.
Embodiment 2:
A kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged, when the disconnected ditch of channel copper mold occured at the A place, disconnected its concrete operation step of ditch was:
A, in the disconnected ditch position of channel copper mold boring 8, aperture Φ 30 measures tomography 6 degree of depth of channel copper mold, carries out the calculating of volume and weight according to the measured value of the channel copper mold tomography degree of depth.
B, weight are calculated
If the degree of depth that the tomography 6 of the disconnected ditch of channel copper mold is measured is about 3cm, the wide 6cm of channel copper mold, thick 11cm, the copper powder volume that needs is 3*11*6=198cm
3
Required copper powder weight=copper mold tomography volume 198cm
3* 8.9 g/cm
3(density of In Crystal Solid Copper)=1500g.
The density of In Crystal Solid Copper is 8.9 g/cm
3, the density of copper powder is about 7.57 g/cm
3The density of the density ratio solid copper of copper powder hangs down 15% approximately, therefore, in repair process, only have the copper powder of filling channel copper mold tomography 6 is built reality, just can make the final densities of copper powder near the density of In Crystal Solid Copper, the channel copper mold is in playing molten process, channel copper mold side column 1 does not plan a successor 6 after the copper powder fusing, just can avoid again occurring the phenomenon of disconnected ditch.
C, copper powder granularity requirements: 50 orders～200 orders;
Pour into copper powder in d, the hole, beat build solid; Embed boring 8 with taper copper rod 7 and strike reality, and firm in the embedding of limit section with the thin copper sheet 5 of shearing, make channel copper mold tomography 6 and copper powder and taper copper rod 7 and thin copper sheet 5 close contacts conduction;
E, logical cooling water, send electric 240V to check in short-term whether major loop, control loop and cooling water system be normal; After confirming normally, send and establish stove by cable, the close observation instrument shows and channel copper mold situation;
After f, channel copper moldization were led to, whether the parameters such as inspection water power were normal.
There is the channel copper mold repair process of core line frequency furnace inductor all to finish.
Embodiment 3:
A kind of channel copper mold restorative procedure that core line frequency furnace inductor is arranged, when the disconnected ditch of channel copper mold occured at the C place, concrete operation step was identical with embodiment 2.The places different from embodiment 1 are the calculating of volume and weight.
Claims (1)
1. process that the channel copper mold that core line frequency furnace inductor arranged is repaired, it is characterized in that: its concrete operation step is:
A, in the disconnected ditch position of channel copper mold boring (8), measure tomography (6) degree of depth of channel copper mold, carry out the calculating of volume and weight according to the measured value of channel copper mold tomography (6) degree of depth;
B, weight are calculated
Required copper powder weight=copper mold tomography volume * 8.9 g/cm
3
The density of In Crystal Solid Copper is 8.9 g/cm
3, the density of copper powder is 7.57 g/cm
3Therefore, in repair process, will fill the copper powder of channel copper mold tomography (6) and build reality, and make the final densities of copper powder near the density of In Crystal Solid Copper, and avoid the channel copper mold in playing molten process, the phenomenon of disconnected ditch again occur;
C, copper powder granularity requirements: 50 orders～200 orders;
Pour into copper powder in d, the hole, beat build solid; Embed boring (8) with taper copper rod (7) and strike reality, and firm in the embedding of taper copper rod (7) limit section with the thin copper sheet (5) of shearing, make channel copper mold tomography (6) and copper powder and taper copper rod (7) and thin copper sheet (5) close contact conduction;
E, logical cooling water, send electric 240V to check in short-term whether major loop, control loop and cooling water system be normal; After confirming normally, send and establish stove by cable, the close observation instrument shows and channel copper mold situation, until copper channel modelling is logical, and normal production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430216.2A CN102901352B (en) | 2012-11-01 | 2012-11-01 | Method for repairing melting groove copper mold for inductor of core frequency induction furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430216.2A CN102901352B (en) | 2012-11-01 | 2012-11-01 | Method for repairing melting groove copper mold for inductor of core frequency induction furnace |
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| CN102901352A true CN102901352A (en) | 2013-01-30 |
| CN102901352B CN102901352B (en) | 2014-10-01 |
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| CN201210430216.2A Expired - Fee Related CN102901352B (en) | 2012-11-01 | 2012-11-01 | Method for repairing melting groove copper mold for inductor of core frequency induction furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925792A (en) * | 2014-04-16 | 2014-07-16 | 绍兴市力博电气有限公司 | Handling method for situation after fracture of melt channel in upward smelting furnace |
| CN112611221A (en) * | 2020-12-28 | 2021-04-06 | 无锡超洲科技有限公司 | Emergency first-aid method for breakage of melting channel of up-drawing copper melting furnace |
| CN113720155A (en) * | 2021-09-07 | 2021-11-30 | 铜陵有色金属集团股份有限公司金威铜业分公司 | Processing technology of oxygen-free furnace group melting furnace inductor shell |
Citations (4)
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| GB1133162A (en) * | 1965-03-13 | 1968-11-13 | Asea Ab | Improvements in electrical induction furnaces |
| US3539318A (en) * | 1967-11-24 | 1970-11-10 | Owens Corning Fiberglass Corp | Apparatus for producing fibers |
| CN101216252B (en) * | 2008-01-10 | 2010-10-06 | 株洲冶炼集团股份有限公司 | Large power electric stove induction apparatus rehabilitate method |
| DE102009018530A1 (en) * | 2009-04-24 | 2010-11-04 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Channel inductor for e.g. melting metal in induction furnace, has inductor channel partly lined along extension through pipe sections, where mechanical firmness of sections is larger than that of fireproof material |
-
2012
- 2012-11-01 CN CN201210430216.2A patent/CN102901352B/en not_active Expired - Fee Related
Patent Citations (4)
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|---|---|---|---|---|
| GB1133162A (en) * | 1965-03-13 | 1968-11-13 | Asea Ab | Improvements in electrical induction furnaces |
| US3539318A (en) * | 1967-11-24 | 1970-11-10 | Owens Corning Fiberglass Corp | Apparatus for producing fibers |
| CN101216252B (en) * | 2008-01-10 | 2010-10-06 | 株洲冶炼集团股份有限公司 | Large power electric stove induction apparatus rehabilitate method |
| DE102009018530A1 (en) * | 2009-04-24 | 2010-11-04 | Saint-Gobain Industriekeramik Düsseldorf Gmbh | Channel inductor for e.g. melting metal in induction furnace, has inductor channel partly lined along extension through pipe sections, where mechanical firmness of sections is larger than that of fireproof material |
Non-Patent Citations (2)
| Title |
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| 刘强，张翔: "感应电炉熔沟断沟的预防与控制", 《铸造》, vol. 53, no. 8, 31 August 2004 (2004-08-31), pages 629 - 631 * |
| 刘立群: "熔锌工频有芯感应电炉熔沟漏锌分析", 《湖南有色金属》, vol. 25, no. 2, 30 April 2009 (2009-04-30) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925792A (en) * | 2014-04-16 | 2014-07-16 | 绍兴市力博电气有限公司 | Handling method for situation after fracture of melt channel in upward smelting furnace |
| CN112611221A (en) * | 2020-12-28 | 2021-04-06 | 无锡超洲科技有限公司 | Emergency first-aid method for breakage of melting channel of up-drawing copper melting furnace |
| CN113720155A (en) * | 2021-09-07 | 2021-11-30 | 铜陵有色金属集团股份有限公司金威铜业分公司 | Processing technology of oxygen-free furnace group melting furnace inductor shell |
| CN113720155B (en) * | 2021-09-07 | 2023-11-21 | 铜陵有色金属集团股份有限公司金威铜业分公司 | Processing technology of oxygen-free furnace group melting furnace inductor shell |
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Granted publication date: 20141001 Termination date: 20191101 |