CN204035524U - A kind of device preparing high purity copper and copper alloy casting ingot - Google Patents

A kind of device preparing high purity copper and copper alloy casting ingot Download PDF

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Publication number
CN204035524U
CN204035524U CN201420217771.1U CN201420217771U CN204035524U CN 204035524 U CN204035524 U CN 204035524U CN 201420217771 U CN201420217771 U CN 201420217771U CN 204035524 U CN204035524 U CN 204035524U
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CN
China
Prior art keywords
copper
mold
ingot
heating furnace
high purity
Prior art date
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Expired - Fee Related
Application number
CN201420217771.1U
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Chinese (zh)
Inventor
杨志强
闫忠强
艾琳
白延利
郭廷宏
李扬
王兆哲
任保佑
许静月
陈天翼
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Jinchuan Group Co Ltd
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Jinchuan Group Co Ltd
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Priority to CN201420217771.1U priority Critical patent/CN204035524U/en
Application granted granted Critical
Publication of CN204035524U publication Critical patent/CN204035524U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of device preparing high purity copper and copper alloy casting ingot, described device comprises heating furnace, mold passage is provided with in described heating furnace, some heating element heaters are evenly laid with in the furnace wall of heating furnace, the bottom of heating furnace is provided with cooling holder, be provided with mold in described mold passage, be connected bottom described mold with cooling holder, the bottom of described cooling holder is connected with draw-gear.Utilize the utility model effectively can solve inside ingot in prior art to there is pore, be mingled with, crystalline structure is uneven, rough surface, and shrinkage cavity is large, and the problems such as lumber recovery is low, reduce production cost, improve production efficiency simultaneously, economic and practical.

Description

A kind of device preparing high purity copper and copper alloy casting ingot
Technical field
The utility model belongs to metallurgical technology field, relates to a kind of device preparing high purity copper and copper alloy casting ingot.
Background technology
The preparation of high-purity and ultra-pure copper ingot, relatively more conventional is vacuum ingot mould casting at present.Chinese patent CN101199988 adopts vacuum melting, is poured into by the ultrapure copper after melting (the preheating laggard luggage stove that mould realizes uniform temperature outside stove is for subsequent use) in preheated mold, obtains ingot casting by naturally cooling; Japanese Patent Laid-Open 7-21432, adopts vacuum melting, mould is carried out to the preheating of more than 800 DEG C before ultrapure copper fusion-cast, then cast molding.99.9999% ultrapure copper ingot prepared by said method, small investment, cost is low, but also there is more problem in technique.Such as Chinese patent CN101199988, the outer preheating of its mould stove and shove charge, easily cause oxidation and pollute, and affects ingot chemistry and stablize; Simultaneously to casting process and operation requirements higher, prepared ingot casting is due to the impact by technique and crystallization mode, and inside ingot easily forms the internal flaw such as pore, shrinkage porosite, and ingot casting rough surface, shrinkage cavity are very large, lumber recovery and utilization rate lower.
The preparation of ultrapure copper ingot in addition, also has and adopts directional solidification method to prepare.The Chinese patent CN1422716 of Mitsubishi Comprehensive Material Co., Ltd.'s application, adopt vacuum melting, copper ultrapure after melting is cast in mold, it is low that mold is added thermosetting lower position temperature by some heating element, along the vertical direction thermograde increased to direction, high position temperature, the temperature on mold top, lower than within the scope of melt 150 DEG C, makes ingot casting prolong mold and solidifies from bottom to top and obtain 99.9999% ultrapure casting in bronze block.But adopt argon filling and uphill casting form in the method melting and casting cycle, technique is comparatively complicated.
In addition, in the preparation of high-purity and ultra-pure copper ingot, also have electron beam furnace fusion casting, Chinese patent CN201010550888.8 utilizes vacuum electron beam stove, raw material is melted, then enters with the form of molten drop and shapingly in water mold obtain 99.9999% ultrapure copper ingot.Because the method does not exist melting kettle, shapingly use water-cooled copper mold, therefore greatly reduce the introducing of impurity in fusion-casting process, the maintenance for metal purity can play good effect.But also there is certain defect in it, in such as fusion process, metal volatilizing loss is large, ingot casting has to pass through secondary remelting and could remove the pore of the radial top layer surrounding enrichment of ingot casting and improve the phenomenon of its skin lamination fracture, to reach the requirement of target ultrapure copper ingot, prepare ultrapure copper ingot cost by the method very high, efficiency is lower.
Therefore wish to find a kind of new casting method; the inside ingot pore existing for current high-purity copper and copper alloy mould casting method, shrinkage porosite can be solved; rough surface, shrinkage cavity are larger; to become a useful person the defects such as rate; can ensure again device structure and technique simple; realize that ultra-pure copper ingot purity is high, elemental gas content is low, physical quality is good, lumber recovery is high, low cost, high efficiency and large-scale production.
Utility model content
The purpose of this utility model is for prior art Problems existing, provides a kind of device preparing high purity copper and copper alloy casting ingot.Said apparatus is utilized to obtain inner without loose, pore, the high purity copper ingot casting that surface quality is smooth and lumber recovery is high and copper alloy casting ingot.
For this reason, the utility model adopts following technical scheme:
A kind of device preparing high purity copper and copper alloy casting ingot, comprise heating furnace, mold passage is provided with in described heating furnace, some heating element heaters are evenly laid with in the furnace wall of heating furnace, the bottom of heating furnace is provided with cooling holder, be provided with mold in described mold passage, be connected bottom described mold with cooling holder, the bottom of described cooling holder is connected with draw-gear.
Further, the top of described mold is provided with funnel shaped tundish.
Further, described heating element heater is graphite heater.
The utility model efficiently solves product quality that vaccum sensitive stove ingot mould casting technique brings and the low problem of lumber recovery, solve again the complexity of vacuum die-casting method equipment and process, ingot casting is easily caused to form the defects such as internal porosity, also solve the volatilizing loss of electron beam furnace fusion casting metal large simultaneously, ingot casting has to pass through the requirement that secondary remelting just can reach target ultrapure copper ingot, meet semiconductor to ultrapure copper ingot chemical purity, gas content and logistics performance requirement while, reduce production cost, improve economic benefit.
To sum up, effect of the present utility model and advantage are: effectively can solve inside ingot in prior art and there is pore, be mingled with, crystalline structure is uneven, rough surface, shrinkage cavity is large, the problems such as lumber recovery is low, reduce production cost, improve production efficiency simultaneously, economic and practical; Compared with Chinese patent CN1422716, casting ingot process requires to obtain and greatly simplify, and mold is suitable for reading without the need to introducing the graphite plug that uphill casting and CN1422716 scheme adopt, thus avoids graphite plug and easily damage and the problem causing ingot casting to pollute.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model prepares high purity copper and copper alloy casting ingot device.
In figure, 1-heating furnace, 2-mold passage, 3-heating element heater, 4-mold, 5-melt, 6-cooling holder, 7-draw-gear, 8-tundish.
Detailed description of the invention
As shown in Figure 1, a kind of device preparing high purity copper and copper alloy casting ingot, comprise heating furnace 1, be provided with mold passage 2 in heating furnace 1, be evenly laid with some heating element heaters 3 in the furnace wall of heating furnace 1, the bottom of heating furnace 1 is provided with cooling holder 6, mold 4 is provided with in mold passage 2, be connected with cooling holder 6 bottom mold 4, the top of mold 4 is provided with funnel shaped tundish 8, and the bottom of cooling holder 6 is connected with draw-gear 7.Melt 5 after copper or copper alloy melting is injected in mold 4 by tundish 8.
Prepare a method for high purity copper and copper alloy casting ingot, adopt the above-mentioned device preparing high purity copper and copper alloy casting ingot, and comprise following concrete steps:
(1) in vacuum or under being filled with inert gas conditions, in crucible, the cathode copper of purity by weight more than 99.9999% or copper alloy are carried out melting;
(2) utilize the heating element heater in heating furnace furnace wall to carry out homogeneous heating to die walls, heating-up temperature remains on more than copper or copper alloy fusing point, and preferably more than copper or copper alloy fusing point within the scope of 200 DEG C;
(3) motlten metal in crucible is injected sidewall by the mold heated by tundish, then by draw-gear, cooling holder is drawn downwards, the mold be connected on cooling holder is progressively stretched out in outside heating furnace downwards along mold passage, thus mold is formed from bottom to the thermograde that upper temp increases; Hauling speed can be controlled in 0.01mm/min-20 mm/min.
Table 1 is for adopting the full element GDMS(glow discharge mass spectrometry analytic approach of above-mentioned preparation technology's gained ultrapure copper ingot) analyze testing result.The analysis comprising 4 kinds of gas contents of C, N, O, H that table 2 adopts LECO method to carry out for gained ultrapure copper ingot.

Claims (3)

1. prepare the device of high purity copper and copper alloy casting ingot for one kind, it is characterized in that, comprise heating furnace, mold passage is provided with in described heating furnace, evenly be laid with some heating element heaters in the furnace wall of heating furnace, the bottom of heating furnace is provided with cooling holder, is provided with mold in described mold passage, be connected with cooling holder bottom described mold, the bottom of described cooling holder is connected with draw-gear.
2. a kind of device preparing high purity copper and copper alloy casting ingot according to claim 1, is characterized in that, the top of described mold is provided with funnel shaped tundish.
3. a kind of device preparing high purity copper and copper alloy casting ingot according to claim 1, is characterized in that, described heating element heater is graphite heater.
CN201420217771.1U 2014-04-30 2014-04-30 A kind of device preparing high purity copper and copper alloy casting ingot Expired - Fee Related CN204035524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420217771.1U CN204035524U (en) 2014-04-30 2014-04-30 A kind of device preparing high purity copper and copper alloy casting ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420217771.1U CN204035524U (en) 2014-04-30 2014-04-30 A kind of device preparing high purity copper and copper alloy casting ingot

Publications (1)

Publication Number Publication Date
CN204035524U true CN204035524U (en) 2014-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420217771.1U Expired - Fee Related CN204035524U (en) 2014-04-30 2014-04-30 A kind of device preparing high purity copper and copper alloy casting ingot

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103949617A (en) * 2014-04-30 2014-07-30 金川集团股份有限公司 Device and method for preparing high-purity copper and copper alloy ingot
CN111992681A (en) * 2020-08-26 2020-11-27 沈阳有色金属加工有限公司 Preparation method of large-size high-purity copper ingot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103949617A (en) * 2014-04-30 2014-07-30 金川集团股份有限公司 Device and method for preparing high-purity copper and copper alloy ingot
CN111992681A (en) * 2020-08-26 2020-11-27 沈阳有色金属加工有限公司 Preparation method of large-size high-purity copper ingot

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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: Jinchuan Lanzhou science and Technology Park Co., Ltd.

Assignor: Jinchuan Group Co., Ltd.

Contract record no.: 2015620000020

Denomination of utility model: Device and method for preparing high-purity copper and copper alloy ingot

Granted publication date: 20141224

License type: Exclusive License

Record date: 20150730

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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141224

Termination date: 20200430