CN201195197Y - Fusion cast graphite jig of hollow casting ingot - Google Patents
Fusion cast graphite jig of hollow casting ingot Download PDFInfo
- Publication number
- CN201195197Y CN201195197Y CNU2008200361300U CN200820036130U CN201195197Y CN 201195197 Y CN201195197 Y CN 201195197Y CN U2008200361300 U CNU2008200361300 U CN U2008200361300U CN 200820036130 U CN200820036130 U CN 200820036130U CN 201195197 Y CN201195197 Y CN 201195197Y
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- CN
- China
- Prior art keywords
- graphite
- protective gas
- ingot casting
- overcoat
- centre rod
- Prior art date
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Abstract
The utility model discloses a graphite mold used for the fusion casting of a hollow cast ingot, which comprises a graphite jacket and a graphite core rod arranged inside the graphite jacket, wherein, the graphite core rod is fixed at the bottom of the graphite mold, an annular passage used for the fusion cast of the hollow cast ingot is formed between the graphite core rod and the graphite jacket, the mold is provided with a protective gas passage importing protective gas from the external world, and the outlet of the protective gas passage is arranged on the lateral wall of the graphite core rod. When the annular passage is utilized to cast the hollow cast ingot, the inner surface of the cast ingot is contacted with the lateral outer surface of the graphite core rod, the protective gas output from the lateral outer surface of the graphite core rod is directly contacted with the inner surface of the cast ingot to prevent the cast ingot from contacting with air and then being oxidized , and the quality problems of expansion scab, chip off-falling, and the like appeared on the inner surface of the cast ingot in the subsequent processing are avoided.
Description
Technical field
The utility model relates to a kind of graphite jig that is used for the hollow ingot casting of founding.
Background technology
The founding graphite jig of hollow ingot casting, comprise the graphite overcoat, be located at the graphite centre rod in the graphite overcoat, graphite centre rod is fixed on the bottom of graphite jig, be formed for the circular passage of the hollow ingot casting of founding between graphite centre rod and the graphite overcoat, the inlet of circular passage generally is located on the sidewall of graphite overcoat near its bottom, the discharging opening of circular passage is positioned at the place, top of graphite overcoat, from inlet input copper liquid, copper liquid is after cooling, form hollow ingot casting, it is the copper pipe base, export from discharging opening, the copper liquid cooling is but the time, according to the principle of expanding with heat and contract with cold, there is the space between the inner surface of the copper pipe that forms and the graphite centre rod, in traditional horizontal casting is produced, this space directly communicates with extraneous, cause hollow ingot casting inner surface directly to contact like this with air, cause the oxidation in various degree of ingot casting inner surface easily, copper is oxidized to cupric oxide or cuprous oxide, cupric oxide or cuprous oxide come off easily in follow-up drawing processing, and then peeling can appear in the interior table of pipe, fall quality problems such as piece.
Summary of the invention
The purpose of this utility model is to provide a kind of oxidized founding graphite jig of inner surface that prevents hollow ingot casting.
In order to reach above purpose; the technical solution adopted in the utility model is: a kind of founding graphite jig of hollow ingot casting; comprise the graphite overcoat, be located at the graphite centre rod in the described graphite overcoat; described graphite centre rod is fixed on the bottom of graphite jig; be formed for the circular passage of the hollow ingot casting of founding between described graphite centre rod and the described graphite overcoat; this mould has the protective gas passage that is used for from extraneous input protection gas, and the outlet of described protective gas passage is positioned on the sidewall of described graphite centre rod.
The position of described outlet is 220-324mm apart from the distance of mold bottom.
Have one section toroidal cavity in the described graphite centre rod, described protective gas passage stretches into described toroidal cavity, and described outlet has a plurality of, and described a plurality of outlets are along on the chamber wall that circumferentially is evenly distributed on described toroidal cavity of described graphite centre rod.
The inlet of described protective gas passage is located on the top end face of described graphite overcoat.
Because the utility model has adopted above technical scheme; its advantage is: in the founding graphite jig; graphite centre rod is positioned at the graphite overcoat; between graphite centre rod and graphite overcoat, be formed for the circular passage of the hollow ingot casting of founding; this mould has the protective gas passage that is used for from extraneous input protection gas; the outlet of protective gas passage is positioned on the lateral outer of graphite centre rod; when utilizing circular passage casting to form hollow ingot casting; the inner surface of ingot casting is contacted with the lateral outer of graphite centre rod; then the protective gas of exporting from the lateral outer of graphite centre rod directly contacts with the inner surface of ingot casting; it is oxidized to prevent that it from contacting with air, avoids that peeling appears in the interior table of ingot casting in following process; fall quality problems such as piece.
Description of drawings
Accompanying drawing 1 is looked cutaway view for master of the present utility model;
Wherein: 1, perforation; 2, inlet opening; 3, gas admission passage; 4, outlet; 5, center-aisle; 6, graphite centre rod; 7, graphite overcoat; 9, circular passage; 10, protective gas passage; 11, toroidal cavity; 12, inlet; 13, gas output channel.
The specific embodiment
Further set forth concrete structure of the present utility model and operation principle below in conjunction with accompanying drawing.
A kind of graphite jig that is used for the hollow ingot casting of founding, its bottom is stretched in the foundry furnace, and to accept copper liquid, the copper liquid cooling is post crystallization but, forms solid-state ingot casting, from top ends output as discharging opening, horizontal positioned during graphite jig work, as shown in Figure 1.
Above-mentioned space is connected with the external world; in order to prevent that air from entering the inner surface with the oxidation ingot casting; must make and be full of protective gas in the space; protective gas can be nitrogen or other inert gas; therefore; offer the protective gas path 10 that is used for from extraneous input protection gas in mould, the outlet 4 of protective gas path 10 is positioned on the sidewall of graphite centre rod 6, and inlet 12 is opened on the top end face of overcoat 7.In the present embodiment; the protective gas path 10 is made up of plurality of sections; as shown in Figure 1; gas admission passage 3 extends to its bottom from the inlet 12 of graphite overcoat 7 top ends; its length is 360mm; width is 4mm; form a center-aisle 5 in the bottom of mould; this center-aisle 5 has been communicated with the gas output channel 13 in gas admission passage 3 and the plug 6; center-aisle 5 is apart from the bottom 25mm of mould; its width is 4mm; gas output channel 13 is extended along the length direction of plug 6, and its length is 220～320mm, and width is 5～9mm; has one section toroidal cavity 11 in the graphite centre rod 6; the width of toroidal cavity 11 is 4mm, and gas output channel 13 stretches in the toroidal cavity 11 at the center position of toroidal cavity 11, and six outlet 4 circumferencial directions along toroidal cavity 11 are evenly distributed on the chamber wall of toroidal cavity 11; the width of outlet 4 is 0.5～2mm, and its distance apart from mold bottom is 220-324mm.The width of toroidal cavity 11 is greater than the width of gas output channel 13; be convenient to output protection gas; export 4 set-up mode simultaneously and make that protective gas can be from evenly output on the same periphery; enhancing is to the protection effect of ingot casting inner surface; furthermore; outlet 4 positions apart from inlet opening 2 should be moderate, when too near, also be in liquid state or become solid-state at settable liquid at copper liquid; can make the copper liquid and leave bubble from the protective gas that export 4 ejections; and when too far away, its protective effect is not strong, and air might be sneaked into; influence the quality of ingot casting inner surface; during mold work, the pressure 0.05MPa of protective gas, flow 5～20L/M.
Claims (4)
1. the founding graphite jig of a hollow ingot casting; comprise graphite overcoat (7), be located at the graphite centre rod (6) in the described graphite overcoat (7); described graphite centre rod (6) is fixed on the bottom of graphite jig; be formed for the circular passage (9) of the hollow ingot casting of founding between described graphite centre rod (6) and the described graphite overcoat (7); it is characterized in that: this mould has the protective gas passage (10) that is used for from extraneous input protection gas, and the outlet (4) of described protective gas passage (10) is positioned on the sidewall of described graphite centre rod (6).
2. the founding graphite jig of hollow ingot casting according to claim 1, it is characterized in that: the position of described outlet (4) is 220-324mm apart from the distance of mold bottom.
3. the founding graphite jig of hollow ingot casting according to claim 1; it is characterized in that: have one section toroidal cavity (11) in the described graphite centre rod (6); described protective gas passage (10) stretches into described toroidal cavity (11); described outlet (4) has a plurality of, and described a plurality of outlets (4) are along on the chamber wall that circumferentially is evenly distributed on described toroidal cavity (11) of described graphite centre rod (6).
4. the founding graphite jig of hollow ingot casting according to claim 1, it is characterized in that: the inlet (12) of described protective gas passage (10) is located on the top end face of described graphite overcoat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200361300U CN201195197Y (en) | 2008-04-30 | 2008-04-30 | Fusion cast graphite jig of hollow casting ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200361300U CN201195197Y (en) | 2008-04-30 | 2008-04-30 | Fusion cast graphite jig of hollow casting ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201195197Y true CN201195197Y (en) | 2009-02-18 |
Family
ID=40414837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200361300U Expired - Lifetime CN201195197Y (en) | 2008-04-30 | 2008-04-30 | Fusion cast graphite jig of hollow casting ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201195197Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069164A (en) * | 2010-11-24 | 2011-05-25 | 浙江海亮股份有限公司 | Inner surface and outer surface protecting device in horizontal continuous casting tube bloom casting processing and operation method thereof |
| CN104209481A (en) * | 2014-08-20 | 2014-12-17 | 湖北长煜模具材料有限公司 | Hollow ingot casting mold and method for casting hollow ingot by using same |
-
2008
- 2008-04-30 CN CNU2008200361300U patent/CN201195197Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069164A (en) * | 2010-11-24 | 2011-05-25 | 浙江海亮股份有限公司 | Inner surface and outer surface protecting device in horizontal continuous casting tube bloom casting processing and operation method thereof |
| CN104209481A (en) * | 2014-08-20 | 2014-12-17 | 湖北长煜模具材料有限公司 | Hollow ingot casting mold and method for casting hollow ingot by using same |
| CN104209481B (en) * | 2014-08-20 | 2016-04-20 | 湖北长煜模具材料有限公司 | Hollow steel ingot casting mold and adopt its cast hollow steel ingot method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170227 Address after: The street's Jiangnan Road Suzhou Jiangsu province 215412 city of Taicang City, No. 33 Patentee after: Jiangsu Canghuan Copper Industry Co.,Ltd. Patentee after: Jinlong Precision Copper Pipe Group Co., Ltd. Address before: The western suburbs of Jiangsu city in Taicang province 215400 Wu Tang Qiaodong Patentee before: Jiangsu Canghuan Copper Industry Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fusion cast graphite jig of hollow casting ingot Effective date of registration: 20171204 Granted publication date: 20090218 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jiangsu Canghuan Copper Industry Co.,Ltd.|Jinlong Precision Copper Pipe Group Co., Ltd. Registration number: 2017990001108 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090218 |
|
| CX01 | Expiry of patent term | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190814 Granted publication date: 20090218 Pledgee: China Minsheng Banking Corp Zhengzhou branch Pledgor: Jiangsu Canghuan Copper Industry Co., Ltd.|Jinlong Precision Copper Tube Group Co., Ltd. Registration number: 2017990001108 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |