CN202779648U - Horizontal continuous casting graphite crystallizer under nitrogen protection - Google Patents
Horizontal continuous casting graphite crystallizer under nitrogen protection Download PDFInfo
- Publication number
- CN202779648U CN202779648U CN 201220361384 CN201220361384U CN202779648U CN 202779648 U CN202779648 U CN 202779648U CN 201220361384 CN201220361384 CN 201220361384 CN 201220361384 U CN201220361384 U CN 201220361384U CN 202779648 U CN202779648 U CN 202779648U
- Authority
- CN
- China
- Prior art keywords
- graphite
- crystallizer
- continuous casting
- graphite crystallizer
- horizontal continuous
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a horizontal continuous casting graphite crystallizer for copper continuous casting equipment and belongs to the technical field of metallurgical equipment. The horizontal continuous casting graphite crystallizer comprises a tubular graphite sleeve, a crystallizing cavity is formed in the graphite sleeve, an annular groove is milled at the lower end of the graphite sleeve, through holes communicated with the crystallizing cavity are drilled on the annular groove, a communicating hole drilled at the bottom end of the graphite sleeve is communicated with the through holes, and a capillary tube is further arranged in the communicating hole and connected to an external nitrogen tube. By the aid of the structure, oxidization of the graphite crystallizer is prevented effectively, and the service life of the graphite crystallizer is prolonged. Besides, nitrogen is used for isolating the graphite crystallizer from air after the graphite crystallizer reaches a crystallizing point, and accordingly copper billets are effectively protected from contacting with the air when crystallized, oxidization of the tube billets is avoided, and the problems of short service life of the graphite crystallizer and surface oxidization, severe convex marks and poor copper crystallization of the copper billets are solved.
Description
Technical field
The utility model relates to a kind of nitrogen protection method nitrogen protection method horizontal continuous casting graphite crystallizer for the copper continuous casting equipment, belongs to technical field of metallurgical equipment.
Background technology
At present copper level continuous casting equipment graphite crystallizer life-span of generally using very short, copper liquid in graphite crystallizer crystallisation by cooling without any protection.Since carry out under the about 1150-1165 of the temperature ℃ hot environment the during crystallization of copper liquid, serious to the oxidation of graphite crystallizer; Graphite surface is behind high-temperature oxydation, case hardness can descend thereupon, become solid-state after the simultaneously copper liquid crystallization by liquid state, direct friction graphite crystallizer inwall in the process of pulling out, cause in the graphite inwall short time and cut occurs, graphite crystallizer inwall cut causes again follow-up crystalline copper base surface convex epirelief to occur, and convex epirelief strengthens the graphite crystallization inwall is scratched, vicious circle so just appears, greatly shorten graphite crystallizer service life, the graphite crystallizer life-span of therefore having caused present horizontal continuous-casting to use is shorter, generally about 2-3 days.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of graphite crystallizer service life of can effectively prolonging, and avoids copper base surface convex epirelief to occur, improves the nitrogen protection method horizontal continuous casting graphite crystallizer of copper degree of crystallinity.
In order to solve the problems of the technologies described above, nitrogen protection method horizontal continuous casting graphite crystallizer of the present utility model comprises the graphite cannula of a tubulose, in graphite cannula, be provided with the sizing graphite rod, form a crystallization cavity between graphite cannula and the graphite rod, the periphery of graphite cannula lower end part is milled with cannelure, is drilled with the open-work that is communicated with the crystallization cavity on the cannelure; The graphite cannula bottom part is drilled with intercommunicating pore, and described intercommunicating pore is connected with open-work, is provided with capillary in the intercommunicating pore, and described capillary is connected on the nitrogen tube.
The quantity of described open-work is more than 5 and evenly is arranged on the cannelure.
Described graphite cannula upper-end part of driving also is drilled with the venthole that communicates with the crystallization cavity.
After adopting above-mentioned structure; because the cannelure that arranges and open-work and the intercommunicating pore that is connected with open-work; intercommunicating pore is connected on the nitrogen tube; add nitrogen protection around in use can making graphite crystallizer by the logical nitrogen of intercommunicating pore; after adding nitrogen; effectively stop the oxidation of graphite crystallizer, prolonged graphite crystallizer service life.Simultaneously, nitrogen is secluding air behind the graphite crystallizer crystalline temperature, when effectively stoping the crystallization of copper base and contact with air, avoid the oxidation of base pipe, thereby avoided because the graphite surface high-temperature oxydation, case hardness descends, become solid-state after the crystallization of copper liquid by liquid state, cause the cut that occurs in the graphite inwall short time, the convex epirelief of also just having avoided follow-up crystalline copper base surface to occur has prolonged graphite crystallizer service life greatly, and low temperature nitrogen is at contact copper base pipe, effectively promote the cooling of copper base, be conducive to the copper crystallization, refinement copper grain size.It is short service life also just to have solved graphite crystallizer, copper base surface oxidation, serious, the poor problem of copper crystallization of convex epirelief.
Description of drawings
Fig. 1 is the utility model nitrogen protection method horizontal continuous casting graphite crystallizer front view;
Fig. 2 is the utility model nitrogen protection method horizontal continuous casting graphite crystallizer top view;
Fig. 3 is the utility model nitrogen protection method horizontal continuous casting graphite crystallizer upward view.
The specific embodiment
As shown in the figure, nitrogen protection method horizontal continuous casting graphite crystallizer of the present utility model, the graphite cannula 1 that comprises a tubulose, in graphite cannula 1, be provided with sizing graphite rod 2, form a crystallization cavity 3 between graphite cannula 1 and the graphite rod 2, the periphery of graphite cannula 1 lower end part is milled with cannelure 4, is drilled with the open-work 5 that is communicated with crystallization cavity 3 on the cannelure 4; Graphite cannula 1 bottom part is drilled with intercommunicating pore 6, and intercommunicating pore 6 is connected with open-work 5, is provided with capillary in the intercommunicating pore 6, and described capillary is connected on the nitrogen tube 7.The quantity of described open-work 5 is more than 5 and evenly is arranged on the cannelure 4.
On the basis of said apparatus, above-mentioned graphite cannula 1 upper-end part of driving also is drilled with the venthole 8 that communicates with crystallization cavity 3.
During manufacturing, at first mill a cannelure at the lower end part from graphite crystallizer, bore uniformly 5-6 open-work in cannelure, (can determine according to concrete instructions for use the quantity of open-work) and bore graphite crystallizer makes its connection crystallization cavity 3; Bore an intercommunicating pore 6 in the graphite crystallizer bottom of graphite crystallizer simultaneously, till getting into cannelure and open-work 5 being connected, then the capillary with corresponding size inserts certain depth from intercommunicating pore, capillary is connected on the nitrogen tube and gets final product, during use, logical upper nitrogen gets final product, and after copper base pipe is pulled out about 30 minutes, nitrogen valve is opened.Require more than 99.99% for nitrogen gas purity, pressure is greater than 0.4MPa.Can also be drilled with venthole 8 at graphite crystallizer back segment position in order to reach better effect.
After adopting nitrogen protection method horizontal continuous casting graphite crystallizer of the present utility model, graphite crystallizer service life extended to average 6-7 days by original average 2-3 days, and the long life reaches 15 days.By 1150 yuan of calculating of each crystallizer, only graphite crystallizer is annual saves 300,000 yuan than original technique by most up-to-date techniques.Surface oxidation is lighter, and originally the base pipe mills the about 1mm of face thickness, and being kept to now the thickness of washing one's face is 0.5mm, and annual waste material reduces 56 tons, increases about 280,000 yuan of benefit.The copper pipe quality is significantly improved, and to 0.2, percentage elongation is greater than 55% by 0.25 at present the thinnest production for light-wall pipe, and resistance to compression pressure reaches 14MPa, and is larger 2 times than the destructive testing pressure 7MPa of country, produced great economic benefits.
Claims (3)
1. nitrogen protection method horizontal continuous casting graphite crystallizer, the graphite cannula (1) that comprises a tubulose, in graphite cannula (1), be provided with sizing graphite rod (2), form a crystallization cavity (3) between graphite cannula (1) and the graphite rod (2), it is characterized in that: the periphery of described graphite cannula (1) lower end part is milled with cannelure (4), is drilled with the open-work (5) that is communicated with crystallization cavity (3) on the cannelure (4); Described graphite cannula (1) bottom part is drilled with intercommunicating pore (6), and described intercommunicating pore (6) is connected with open-work (5), and described intercommunicating pore is provided with capillary in (6), and described capillary is connected on the nitrogen tube (7).
2. according to nitrogen protection method horizontal continuous casting graphite crystallizer claimed in claim 1, it is characterized in that: the quantity of described open-work (5) is more than 5 and evenly is arranged on the cannelure (4).
3. according to nitrogen protection method horizontal continuous casting graphite crystallizer claimed in claim 1, it is characterized in that: described graphite cannula (1) upper-end part of driving also is drilled with the venthole (8) that communicates with crystallization cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361384 CN202779648U (en) | 2012-07-24 | 2012-07-24 | Horizontal continuous casting graphite crystallizer under nitrogen protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361384 CN202779648U (en) | 2012-07-24 | 2012-07-24 | Horizontal continuous casting graphite crystallizer under nitrogen protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779648U true CN202779648U (en) | 2013-03-13 |
Family
ID=47806990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220361384 Expired - Fee Related CN202779648U (en) | 2012-07-24 | 2012-07-24 | Horizontal continuous casting graphite crystallizer under nitrogen protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567403A (en) * | 2013-10-17 | 2014-02-12 | 河南科技大学 | Graphite sleeve for horizontal continuous casting crystallizer and preparation method thereof |
| CN105033199A (en) * | 2015-09-01 | 2015-11-11 | 无锡隆达金属材料有限公司 | Graphite crystallizer for horizontal continuous casting |
-
2012
- 2012-07-24 CN CN 201220361384 patent/CN202779648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567403A (en) * | 2013-10-17 | 2014-02-12 | 河南科技大学 | Graphite sleeve for horizontal continuous casting crystallizer and preparation method thereof |
| CN105033199A (en) * | 2015-09-01 | 2015-11-11 | 无锡隆达金属材料有限公司 | Graphite crystallizer for horizontal continuous casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106591680B (en) | A kind of technique of continuous casting billet production deep-sea wellhead for production CrNiMo30C steel forging materials | |
| CN102990305B (en) | Machining method for noble metal | |
| CN105950930A (en) | Soluble extrusion magnesium alloy and preparation method thereof | |
| CN102634728A (en) | Small square Billet continuous casting production technique of Fe-Mn-C high-manganese steel | |
| CN105177264B (en) | A kind of manufacturing method of stainless steel forging round steel | |
| CN104148613B (en) | A kind of compressor casing low pressure casting one mould four cavity mould | |
| CN102978442A (en) | Rare earth zinc copper titanium alloy and production method thereof | |
| CN102676855A (en) | Method for preparing high magnesium aluminium alloy ingot used for forging hubs | |
| CN202779648U (en) | Horizontal continuous casting graphite crystallizer under nitrogen protection | |
| CN102773675B (en) | Molding process of header body | |
| CN102764862A (en) | Horizontal continuous casting graphite crystallizer by aid of nitrogen protection method | |
| CN101791681A (en) | Water-cooling die casting production process of plate blank used for medium plate | |
| CN104668304A (en) | Technological method for producing nickel and nickel alloy tube in short process | |
| CN101695721B (en) | Bipyramid copper alloy extrusion die | |
| CN102827987A (en) | Spheroidizing agent as well as production method and usage thereof | |
| CN201552198U (en) | Bi-conical copper alloy extrusion mold | |
| CN104014987B (en) | A kind of preparation method of oil titanium ball valve | |
| CN103567253B (en) | The manufacture craft of major diameter copper pipe | |
| CN102989804B (en) | Production method of high-rib opening section bar | |
| CN204975242U (en) | A graphite crystallizer for horizontal continuous casting | |
| CN103128268B (en) | For the method for low temperature shake out in large extra thick plate blank | |
| CN205085162U (en) | Extrusion trepanning tool of steel pipe | |
| CN201552746U (en) | Film cooling water ring provided with ring-shaped groove | |
| CN104174817A (en) | Casting and heat-treating processes of climbing machine connecting seat of ocean platform | |
| CN110129619A (en) | A kind of ambrose alloy silicon alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qingdao Hongao Copper Pipe Co., Ltd. Assignor: Qingdao Zhongye New Material Technology Co., Ltd. Contract record no.: 2015990000658 Denomination of utility model: Horizontal continuous casting graphite crystallizer by aid of nitrogen protection method Granted publication date: 20130313 License type: Exclusive License Record date: 20150722 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |