CN201890907U - Copper ingot heating system with protective atmosphere - Google Patents
Copper ingot heating system with protective atmosphere Download PDFInfo
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- CN201890907U CN201890907U CN2010206311177U CN201020631117U CN201890907U CN 201890907 U CN201890907 U CN 201890907U CN 2010206311177 U CN2010206311177 U CN 2010206311177U CN 201020631117 U CN201020631117 U CN 201020631117U CN 201890907 U CN201890907 U CN 201890907U
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- copper ingot
- air lock
- furnace
- heating system
- induction
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Abstract
The utility model discloses a copper ingot heating system with a protective atmosphere. The copper ingot heating system comprises an induction heating furnace and an electric resistance soaking furnace, wherein the inlet of the electric resistance soaking furnace is connected with the outlet of the induction heating furnace, and the induction heating furnace comprises a plurality sections of induction furnace bodies. The copper ingot heating system is characterized in that a feeding air lock chamber and a discharging air lock chamber are further included, wherein the feeding air lock chamber is connected to an inlet of the induction heating furnace, and the discharging air lock chamber is connected to an outlet of the electric resistance soaking furnace. Gas tight sealing devices are arranged in all gaps among the plurality of sections of induction furnace bodies and between the induction heating furnace and the electric resistance soaking furnace. By adopting a protective atmosphere device, the oxidization phenomenon of copper ingots during heating process can be efficiently prevented, the loss of metal caused by oxidization is reduced, the quality of extruded products is improved, and the cost is lowered. Because an oxide coating ribbing an extruding cylinder, an extruding module and a pecker does not exist, the service life of extrusion tooling is obviously prolonged, the finished product rate of extruding processes is improved, and the cost of extruding tools is lowered.
Description
Technical field
The utility model relates to a kind of heating system of copper ingot, relates in particular to a kind of copper ingot heating system with protective atmosphere.
Background technology
Present copper and copper alloy ingot heat employed process furnace and are generally induction heater or through type resistance soaking pit 7a of induction heater back series connection.For fear of the influence of cocurrent flow effect and end effect to heating efficiency, generally with the section of multi-zone reheating furnace (1a-6a as shown in Figure 1) with section between reserve gap (referring to Fig. 1) about 80mm, copper ingot in being in intermittently is exposed in the air very easily oxidation at high temperature fully.Induction heater adopts the gradient-heated mode, raises successively to discharging direction copper ingot 8a Heating temperature along furnace superintendent, and the copper ingot temperature at gap 9a place is approximately 180-250 ℃, has reached the temperature that copper ingot begins oxidation; The copper ingot temperature at 10a place, gap is approximately 380-450 ℃; The copper ingot temperature at 11a place, gap is approximately 550-630 ℃, and the copper ingot surface oxidation speeds up; The copper ingot temperature at 12a place, gap is approximately 750-800 ℃; The copper ingot temperature at 13a place, gap is approximately 880-950 ℃; The copper ingot temperature at 14a place, gap is approximately 950-1150 ℃.Taken out from soaking pit by the discharging mechanical manipulator, the copper ingot 15a temperature that is positioned over the discharging roller-way is at 950-1150 ℃.Until copper ingot is come out of the stove, the copper ingot surface oxidation is very strong from gap 12a beginning.
When Fig. 2 and Fig. 3 are single hop copper ingot process furnace 1b heating copper ingot 2b, suck freezing air-copper ingot surface oxidation in the stove and form the chimneyeffect synoptic diagram.Freezing air sucks (seeing the mark 3b of Fig. 2 and the mark 5b of Fig. 3) from the low-temperature end of heating furnace body along slit 3b, 5b between copper ingot bottom and the induction coil liner, enters the air one side oxidation copper ingot in the stove, is heated by copper ingot on the one hand.Warm air 4b come-up under the effect of density difference, discharges out of the furnace at last.Freezing air constantly sucks from 3b, 5b in a steady stream, and the oxidation copper ingot is heated by copper ingot on the one hand on the one hand, and (referring to the mark 6b of Fig. 2) then discharges out of the furnace.As seen, existing process furnace is owing to exist the slit between section and the section, and place, slit copper ingot is exposed in the air, produces serious oxidative phenomena.
The utility model content
The purpose of this utility model provides a kind of copper ingot heating system with protective atmosphere.
Above-mentioned purpose realizes by following proposal:
A kind of copper ingot heating system with protective atmosphere; it comprises multi-stage type induction heater-resistance soaking pit, and its anti-oxidation protective atmosphere system comprises the tightness system between charging air lock, discharging air lock, charging air lock nitrogen purging and discharge monitoring system, discharging air lock nitrogen purging and discharge monitoring system, heating-equal hot cell nitrogen purging and discharge monitoring system, multi-stage type body of heater section and the section.
According to above-mentioned copper ingot heating system, it is characterized in that described charging air lock, discharging air lock structure respectively comprise furnace chamber, twice sealing door, a cover nitrogen purging device, a monitoring of cover nitrogen gas concn and a discharge equipment of a sealing.
According to above-mentioned copper ingot securing system, it is characterized in that described tightness system is with the gas-impermeable sheath layer of flexible refractory insulating material as liner.
According to above-mentioned copper ingot heating system, it is characterized in that described heating-equal hot cell nitrogen purging and discharge monitoring system comprise a cover nitrogen purging device, a monitoring of cover nitrogen gas concn and a discharge equipment.Between multi-stage type body of heater section and section, bubble-tight tightness system is housed.
Adopt this protective atmosphere device, can effectively prevent the oxidative phenomena that copper ingot exists in heat-processed, reduce the burning loss, improve the extruded product quality, reduce cost.Owing to there are not the wearing and tearing of oxide skin to container, overflow mould, hole forming pin, can significantly improve the work-ing life of extruding frock, improve the extrusion process lumber recovery, reduce the compression tool cost.
Description of drawings
Fig. 1 is the structural representation of the multi-zone reheating furnace of prior art;
Fig. 2 is the structural representation of the single hop copper ingot process furnace of prior art;
Fig. 3 is the side-view of Fig. 2;
Fig. 4 is the structural representation of the copper ingot heating system of band protective atmosphere of the present utility model.
Embodiment
Referring to Fig. 4; the copper ingot heating system of band protective atmosphere of the present utility model comprises induction heater 25 and resistance soaking pit 9; the import of resistance soaking pit 9 links to each other with the outlet of induction heater 25; and; induction heater comprises multistage induction body of heater 3-8; the copper ingot heating system also comprises charging air lock 2 and discharging air lock 10, and charging air lock 2 is connected the import of first section induction body of heater 3 of induction heater 25, and discharging air lock 10 is connected the outlet of resistance soaking pit 9.
Nitrogen gas concn monitoring and discharge equipment 16 that charging air lock 2 and discharging air lock 10 comprise the nitrogen purging device 14 at the furnace chamber of sealing, the twice sealing door 13,15 that is installed in furnace chamber input and output material end, furnace chamber top and be located at roller-way below in the furnace chamber.
Nitrogen gas concn monitoring and discharge equipment 23 that discharging air lock 10 comprises the nitrogen purging device 22 at the furnace chamber of sealing, the twice sealing door 20,21 that is installed in furnace chamber input and output material end, furnace chamber top and is located at roller-way below in the furnace chamber.
Gap between multistage induction body of heater and the gap between heat induced stove 25 and the resistance soaking pit 9 are equipped with bubble-tight tightness system 17.Preferably, tightness system 17 is with the gas-impermeable sheath layer of flexible refractory insulating material as liner.
Between induction body of heater 8 that links to each other with resistance soaking pit 9 and resistance soaking pit 9, nitrogen purging device is installed, between first and second section induction body of heater 3,4, nitrogen gas concn monitoring and discharge equipment 19 is installed.
Describe below with reference to Fig. 4 and to use process furnace of the present utility model that copper ingot is heated process with soaking: when the copper ingot process furnace is started working, copper ingot A, B, C to be heated pushes first section induction furnace 3, charging air lock 2 and feeding system material loading position 1 respectively with first, second and third joint, close input and output material air lock sealing door 13,15,20,21, open nitrogen purging device 14,18,22 and in stove, purge purified nitrogen, the air that nitrogen gas concn monitoring and discharge equipment 16,19,23 discharge outside stove in the stove.The nitrogen gas concn that monitors discharging when nitrogen gas concn monitoring and discharge equipment 16,19,23 reaches 99% when above, exhaust-valve in nitrogen gas concn monitoring and the discharge equipment 16,19,23 and the intake valve in the nitrogen purging device 14,18,22 are closed, and the copper ingot process furnace begins to send electrically heated.According to the charging beat needs of program setting in stove during feed, charging air lock sealing door 13,15 is opened, the charging air lock purges control device 14 and opens air feed in stove, keep place, feeding gate sealing door 13 doorways pressure-fired, feeding device 1 with copper ingot C push air lock 2, copper ingot C pushes B in first section induction furnace, copper ingot B pushes A to second section induction furnace.The pusher action is finished, and the blow down valve of sealing door 13, nitrogen purging device 14 cuts out, and whole reinforced process repeats above-mentioned action.When the copper ingot of heating arrives equal hot cell, open discharging sealing door 20.During discharging, need open sealing door 13,15,20,21, open nitrogen purging device 14 and 22, keep charging hermatic door 13 doorways, place, discharging hermatic door 21 doorways pressure-fired, feeding device 1 is shifted the copper ingot 12 that heats in the discharging air lock 10 onto, and discharging mechanism 24 takes out the copper ingot 12 that heats.If heated copper ingot surface oxidation phenomenon, can in heat-processed, be interrupted and open valve 18 air feed in stove,, purge the air in the stove by valve 16 and 23 emptyings, can also make the copper ingot surface-brightening by in nitrogen, adding the way of the hydrogen of 5%-15%.The nitrogen that purges usefulness can be that pipeline nitrogen also can be bottled nitrogen.
Claims (5)
1. copper ingot heating system with protective atmosphere; it comprises induction heater and resistance soaking pit; the import of described resistance soaking pit links to each other with the outlet of described induction heater; and; described induction heater comprises multistage induction body of heater, it is characterized in that described copper ingot heating system also comprises charging air lock and discharging air lock; described charging air lock is connected the import of described induction heater, and described discharging air lock is connected the outlet of described resistance soaking pit.
2. copper ingot heating system according to claim 1, it is characterized in that described charging air lock and discharging air lock include the furnace chamber of sealing, nitrogen gas concn monitoring and the discharge equipment that is installed in the nitrogen purging device at the twice sealing door of described furnace chamber input and output material end, described furnace chamber top and is located at roller-way below in the described furnace chamber.
3. copper ingot heating system according to claim 1 and 2 is characterized in that, gap between described multistage induction body of heater and the gap between described heat induced stove and the described resistance soaking pit are equipped with bubble-tight tightness system.
4. copper ingot heating system according to claim 3 is characterized in that, described tightness system is with the gas-impermeable sheath layer of flexible refractory insulating material as liner.
5. copper ingot heating system according to claim 1 and 2, it is characterized in that, between induction body of heater that links to each other with described resistance soaking pit and described resistance soaking pit, nitrogen purging device is installed, nitrogen gas concn monitoring and discharge equipment are installed between the described induction body of heater of first and second section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206311177U CN201890907U (en) | 2010-11-30 | 2010-11-30 | Copper ingot heating system with protective atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206311177U CN201890907U (en) | 2010-11-30 | 2010-11-30 | Copper ingot heating system with protective atmosphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890907U true CN201890907U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206311177U Expired - Fee Related CN201890907U (en) | 2010-11-30 | 2010-11-30 | Copper ingot heating system with protective atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321811A (en) * | 2017-08-07 | 2017-11-07 | 江苏中福铝镁科技有限公司 | A kind of Al alloys andMg alloys justify the universal heater of ingot casting |
| CN112877529A (en) * | 2021-02-05 | 2021-06-01 | 江苏亚太轻合金科技股份有限公司 | Aluminum material heat treatment process with gas protection |
-
2010
- 2010-11-30 CN CN2010206311177U patent/CN201890907U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321811A (en) * | 2017-08-07 | 2017-11-07 | 江苏中福铝镁科技有限公司 | A kind of Al alloys andMg alloys justify the universal heater of ingot casting |
| CN107321811B (en) * | 2017-08-07 | 2023-09-01 | 江苏中福铝镁科技有限公司 | General heating device for aluminum and magnesium alloy round ingot casting |
| CN112877529A (en) * | 2021-02-05 | 2021-06-01 | 江苏亚太轻合金科技股份有限公司 | Aluminum material heat treatment process with gas protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20131130 |