CN202824585U - Device for continuously manufacturing high-quality alloy ingots - Google Patents

Device for continuously manufacturing high-quality alloy ingots Download PDF

Info

Publication number
CN202824585U
CN202824585U CN 201220453750 CN201220453750U CN202824585U CN 202824585 U CN202824585 U CN 202824585U CN 201220453750 CN201220453750 CN 201220453750 CN 201220453750 U CN201220453750 U CN 201220453750U CN 202824585 U CN202824585 U CN 202824585U
Authority
CN
China
Prior art keywords
cooling water
crystallizer
ingots
primary cooling
water chamber
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.)
Withdrawn - After Issue
Application number
CN 201220453750
Other languages
Chinese (zh)
Inventor
白月龙
徐骏
张志峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing General Research Institute for Non Ferrous Metals
Original Assignee
Beijing General Research Institute for Non Ferrous Metals
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing General Research Institute for Non Ferrous Metals filed Critical Beijing General Research Institute for Non Ferrous Metals
Priority to CN 201220453750 priority Critical patent/CN202824585U/en
Application granted granted Critical
Publication of CN202824585U publication Critical patent/CN202824585U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Images

Abstract

The utility model discloses a device for continuously manufacturing high-quality alloy ingots, and belongs to the technical field of metal material machining. The device comprises a hot top, a graphite ring and a crystallizer. The graphite ring is embedded into the crystallizer. A primary cooling water cavity and a secondary cooling water cavity are arranged inside the crystallizer. Each water cavity is provided with a plurality of water outlets. The angle A between the direction of the water outlets of the primary cooling water cavity and the longitudinal projection of the primary cooling water cavity is 60-88 degrees. According to the device, the primary cooling water cavity enables a steam membrane to be formed among the surfaces of the ingots, the graphite ring and the inner wall of the crystallizer through water flow ejected out from the water outlets. Under the effect of the steam membrane, foundry defects of the ingots such as cold shut, segregation warts and pull cracks are overcome. The alloy ingots produced through the device has smooth surfaces, the foundry defects of the ingots such as cold shut, the segregation warts and the pull cracks are reduced, the rate of the finished ingots and the material using rate of the ingots are improved, environment is protected, structure is simplified, and the production cost of the ingots is lowered.

Description

The device of the high-quality alloy cast ingot of a kind of continuous production
Technical field
The utility model belongs to the metal material processing technical field, is specifically related to the device of the high-quality alloy cast ingot of a kind of continuous production.
Background technology
At present both at home and abroad in industrial production ingot casting foundry engieering commonly used mainly contain following several, i.e. direct water-cooling foundry engieering (DC foundry engieering), the gentle cunning of hot direct casting technology for making (cunning) foundry engieering.
A kind of apparatus and method of producing ingot casting by direct water-cooling foundry engieering (DC foundry engieering) have been mentioned in the United States Patent (USP) 2791812; this technology is by the direct cooling effect of crystallizer wall; form certain thickness solidified shell between molten aluminum liquid and crystallizer; under the protective effect of solidified shell, the motlten metal in the solidified shell is drawn out under the effect of the external secondary cooling water of crystallizer and is frozen into ingot casting.Direct water-cooling foundry engieering production process is flexible, convenient, but because the liquid level in its crystallizer is difficult to control, in casting process, can form very dark liquid cave, in cooling procedure in the crystallizer contraction of scull easily make the ingot casting surface produce various defectives, such as the segregation knurl, cold shut, coarse-grain layer and face crack, especially the segregation of large scale ingot casting, decrepitation is quite serious, the adverse effect of bringing to the Downstream processing operation in order to remedy these defectives, must strengthen turning amount and the ingot casting excision amount end to end of ingot casting, the yield rate of ingot casting is reduced greatly, and production cost significantly increases.In order to overcome these defectives, developed hot direct casting technology for making abroad, Maxicast circle ingot casting identical-level hot-top casting technology such as U.S. Wagstaff company utility model is exactly the Typical Representative of hot direct casting technology for making, this technology is made a storage tank on crystallizer top with light heat insulation material and is linked to each other with chute on the basis that takes full advantage of direct water-cooling foundry engieering advantage, melt is stabilized in more than the liquidus temperature in the storage tank, crystallization does not occur in melt, i.e. so-called " heat top " yet.The development of hot direct casting technology for making, effective crystal region height is diminished, and the effect of secondary direct water-cooling is strengthened, and has eliminated the illeffects of the air-gap of traditional DC method generation, the ingot casting surface quality significantly improves, reduced the defectives such as slag inclusion, pore, improved the inside quality of ingot casting, the crystalline structure of ingot casting is tiny evenly, segregation is little, improved the performance of ingot casting, simple to operate, production efficiency is high.But, no matter be direct water-cooling foundry engieering or hot direct casting technology for making, all be that liquid metal contacts first the after coagulation shaping with mold, this metal brings the defective that is difficult to overcome with contacting to casting of die wall, the casting flaws such as segregation knurl, cold shut, coarse-grain layer and face crack that the contraction of ingot casting scull produces the ingot casting surface, although hot direct casting technology for making gets improvement to a certain extent, because being difficult for accurate control, the heat conduction distance still can produce distinctive external waviness and the casting flaws such as inverse segregation, crackle.Ingot casting surface and internal soundness are not fundamentally improved.In order fundamentally to address the aforementioned drawbacks, both at home and abroad utility model sliding (cunning) foundry engieering of gas, (Airslip) technology is made in the Pneumatic type thermal direct casting technology for making of mentioning such as United States Patent (USP) 4157728 and the sliding hot direct casting of gas of U.S. Wagstaff company utility model.This technology uses lubricating oil and compressed air to form a kind of oil/gas mixed lubrication medium between crystallizer inwall and melt in Hot-Top mould simultaneously, guarantee simultaneously the stable of this medium, pressure differential between balance itself and the melt static pressure, the heat that this technology makes motlten metal pass through crystallizer wall reduces, greatly weakened the intensity of cooling of crystallizer wall, melt liquid cave shoals, the ingot casting crystallization process is easy to feeding, be difficult for producing segregation, directly be subject to the effect of secondary cooling water from crystallizer ingot casting out, greatly strengthened intensity of cooling, refinement ingot casting grain structure, and the cooling point is near the solid-liquid interface, so the ingot casting that Air-slip Casting is produced surface and internal soundness are fine.It is very responsive that but this technology requires to change to air pressure, needs accurately control air pressure, in addition, porous graphite ring consumption is larger, and consuming cost is high, and is also very high to the requirement of foundry engieering, equipment is also comparatively complicated, is difficult for grasping, and has also greatly limited the scope of application of this technology.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned Air-slip Casting technology, and the device of the high-quality alloy cast ingot of a kind of continuous production is provided.
The device of the high-quality alloy cast ingot of a kind of continuous production, this device is comprised of heat top 1, graphite annulus 2 and crystallizer 4; Be embedded with graphite annulus 2 in the crystallizer 4, crystallizer 4 interior two primary cooling water chambeies 3 that communicate or do not communicate and the secondary cooling water chambeies 5 of arranging; Primary cooling water chamber 3 sets out the mouth of a river 6; Secondary cooling water chamber 5 sets out the mouth of a river 7; The direction of the delivery port 6 in primary cooling water chamber 3 and its projection angle A radially are the 60-88 degree, and wherein pressure and the flow of the cooling water in primary cooling water chamber 3 and the secondary cooling water chamber 5 are controlled.
In vertical direction, the position of the delivery port 6 in primary cooling water chamber 3 is between the delivery port 7 in graphite annulus 2 bottoms and secondary cooling water chamber 5.
This device is applicable to the preparation of acieral, magnesium base alloy, zinc-containing alloy, acid bronze alloy, nickel-base alloy, cobalt-base alloys or ferrous alloy ingot casting.
The beneficial effects of the utility model are: compare with traditional hot direct casting technology for making, adopt the utility model can obtain high-quality alloy cast ingot, the ingot casting smooth surface, can greatly reduce the casting flaws such as segregation knurl, cold shut, coarse-grain layer and face crack that the contraction of scull produces the ingot casting surface in the crystallizer, improve yield rate and the stock utilization of ingot casting, significantly reduced production cost.
Description of drawings
Fig. 1 is the device schematic diagram of the high-quality alloy cast ingot of preparation; Wherein each label is: 1-heat top, 2-graphite annulus, 3-primary cooling water chamber, 4-crystallizer, 5-secondary cooling water chamber, the delivery port in 6-primary cooling water chamber, the delivery port in 7-secondary cooling water chamber, 8-air gap, 9-ingot casting, melt-10,11-aqueous vapor film.
Fig. 2 is ingot casting primary cooling water apopore direction and its radially projecting's angle schematic diagram when being billet;
Fig. 3 is ingot casting primary cooling water apopore direction and its radially projecting's angle schematic diagram when being slab ingot;
Wherein each label is: 3-primary cooling water chamber, 4-crystallizer, the delivery port in 6-primary cooling water chamber, 9-ingot casting, 11-aqueous vapor film.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
This device is comprised of heat top 1, graphite annulus 2 and crystallizer 4 as shown in Figure 1; Be embedded with graphite annulus 2 in the crystallizer 4, crystallizer 4 interior two primary cooling water chambeies 3 that communicate or do not communicate and the secondary cooling water chambeies 5 of arranging; Primary cooling water chamber 3 sets out the mouth of a river 6; Secondary cooling water chamber 5 sets out the mouth of a river 7; The direction of the delivery port 6 in primary cooling water chamber 3 and its projection angle A radially are the 60-88 degree, shown in Fig. 2-3.In vertical direction, the position of the delivery port 6 in primary cooling water chamber 3 is between the delivery port 7 in graphite annulus 2 bottoms and secondary cooling water chamber 5.
When the preparation alloy cast ingot, be ejected on the ingot casting 9 of high temperature by the cooling water of primary cooling water chamber 3 by delivery port 6 ejections, the cooling water partial gasification, enter graphite annulus 2 interior formation one deck aqueous vapor films 11 by the air gap 8 that forms between ingot casting 9 and crystallizer 4 inwalls, under the supporting role of this aqueous vapor film 11, melt 10 downslides contact with secondary cooling water with the primary cooling water that not yet gasifies and are frozen into ingot casting 9.The large I of the pressure of vapor membrane is controlled by pressure and the flow of cooling water in the primary cooling water chamber 3.
Embodiment 1
Prepare high-quality 2024 aluminium alloy round cast ingot.As shown in Figure 1, this device is comprised of heat top 1, graphite annulus 2, crystallizer 4.Wherein, graphite annulus 2 is embedded in the crystallizer 4.The graphite annulus internal diameter is 78mm, and graphite annulus thickness is 3mm.Include two cooling water cavities in the crystallizer, be respectively primary cooling water chamber 3 and secondary cooling water chamber 5, pressure and the flow of the cooling water in primary cooling water chamber 3 and the secondary cooling water chamber 5 can be controlled respectively.The radial angle A of primary cooling water chamber delivery port 6 water spraying directions and this delivery port 9 is 75 degree, as shown in Figure 2.
Adopt Fig. 1, device shown in Figure 2 to cast 2024 aluminium alloy round cast ingot continuously, 2024 aluminium alloy liquidus temperatures are 638 ℃, and 2024 aluminium alloy melt temperature are 670 ℃ in the heat top 1 in casting process.The ingot casting decrease speed is 3.5mm/s, and primary cooling water is pressed and is 0.35MPa, and cooling water flow is 0.3L/s, and secondary cooling water pressure is 0.20MPa, and cooling water flow is 1.8L/s.Obtain ganoid 4032 aluminium alloy cast ingots.
Embodiment 2
Prepare high-quality AZ31 magnesium alloy circle ingot casting, as shown in Figure 1, this device is comprised of heat top 1, graphite annulus 2, crystallizer 4.Wherein, graphite annulus 2 is embedded in the crystallizer 4.The graphite annulus internal diameter is 95mm, and graphite annulus thickness is 4mm.Include two cooling water cavities in the crystallizer, be respectively primary cooling water chamber 3 and secondary cooling water chamber 5, pressure and the flow of the cooling water in primary cooling water chamber 3 and the secondary cooling water chamber 5 can be controlled respectively.The radial angle A of primary cooling water chamber delivery port 6 water spraying directions and this delivery port 9 is 80 degree, as shown in Figure 2.
Adopt Fig. 1, device shown in Figure 2 to cast AZ31 magnesium alloy circle ingot casting continuously, AZ31 magnesium alloy liquidus temperature is 636 ℃, and AZ31 magnesium alloy fused mass temperature is 670 ℃ in the heat top 1 in casting process.The ingot casting decrease speed is 4.0mm/s, and primary cooling water is pressed and is 0.25MPa, and cooling water flow is 0.2L/s, and secondary cooling water pressure is 0.35MPa, and cooling water flow is 1.6L/s.Obtain ganoid AZ31 magnesium alloy ingot.

Claims (2)

1. the device of the high-quality alloy cast ingot of continuous production is characterized in that, this device is comprised of heat top (1), graphite annulus (2) and crystallizer (4); Be embedded with graphite annulus (2) in the crystallizer (4), two primary cooling water chambeies (3) that communicate or do not communicate and secondary cooling water chamber (5) are set in the crystallizer (4); Primary cooling water chamber (3) sets out the mouth of a river (6); Secondary cooling water chamber (5) sets out the mouth of a river (7); The direction of the delivery port (6) in primary cooling water chamber (3) and its projection angle A radially are the 60-88 degree, and wherein pressure and the flow of the cooling water in primary cooling water chamber (3) and secondary cooling water chamber (5) are controlled.
2. the device of the high-quality alloy cast ingot of a kind of continuous production according to claim 1, it is characterized in that, in vertical direction, the position of the delivery port (6) of primary cooling water chamber (3) is positioned between the delivery port (7) of graphite annulus (2) bottom and secondary cooling water chamber (5).
CN 201220453750 2012-09-06 2012-09-06 Device for continuously manufacturing high-quality alloy ingots Withdrawn - After Issue CN202824585U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220453750 CN202824585U (en) 2012-09-06 2012-09-06 Device for continuously manufacturing high-quality alloy ingots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220453750 CN202824585U (en) 2012-09-06 2012-09-06 Device for continuously manufacturing high-quality alloy ingots

Publications (1)

Publication Number Publication Date
CN202824585U true CN202824585U (en) 2013-03-27

Family

ID=47936378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220453750 Withdrawn - After Issue CN202824585U (en) 2012-09-06 2012-09-06 Device for continuously manufacturing high-quality alloy ingots

Country Status (1)

Country Link
CN (1) CN202824585U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103658579A (en) * 2012-09-06 2014-03-26 北京有色金属研究总院 Device and method for continuously manufacturing high-quality alloy cast ingots

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103658579A (en) * 2012-09-06 2014-03-26 北京有色金属研究总院 Device and method for continuously manufacturing high-quality alloy cast ingots

Similar Documents

Publication Publication Date Title
CN103658579B (en) A kind of apparatus and method of continuous production high-quality alloy cast ingot
CN203635889U (en) Apparatus for continuous production of large-size high-quality aluminum alloy cast ingots
CN202045348U (en) Vertical type semi-continuous casting crystallizer with double-layer water cavities
CN101791681B (en) Water-cooling die casting production process of plate blank used for medium plate
CN206605009U (en) Annular cast running gate system
CN105195681A (en) Large ship propeller casting technology
CN101664795B (en) Method for manufacturing vehicle camshaft cover by semi-solid rheoforming
CN104722730A (en) Device and method for continuous preparation of large-size high-quality aluminum alloy cast ingots
CN201455235U (en) Water-cooling mechanism
CN202824585U (en) Device for continuously manufacturing high-quality alloy ingots
CN102658359A (en) Casting method for copper and copper alloy cast ingots
CN101875104B (en) Grid plate preparation method
CN202527690U (en) Solidification system for manufacturing magnesium alloy casting ingot
CN102941338B (en) Method and device for controlling cooling speed of core assembling casting
CN204685985U (en) A kind of gas lubricated crystallizer device for electromagnetic agitation
CN104249142B (en) The pressure casting processes of the sublimate homogeneous densification big strand of grain refining iron and steel
CN110180996A (en) A kind of method cracked in elimination gravitational casting
CN201157895Y (en) Special thick slab solidification apparatus
CN204934515U (en) Large-scale marine propeller casting endoporus core
CN211386819U (en) Multifunctional water-cooled refractory high-entropy alloy casting forming die
CN103128268B (en) For the method for low temperature shake out in large extra thick plate blank
CN202169361U (en) Screw type cooling device capable of improving uniformity of copper pipe horizontal continuous casting blank crystal grain
CN104174817B (en) A kind of ocean platform climb casting and the Technology for Heating Processing of machine Connection Block
CN202162355U (en) High-flow cooling device for refining grain sizes of horizontal continuous casting blanks of copper pipes
CN202192236U (en) Cooling device for high-speed cast fine-grain ingot blanks for horizontal continuous casting of copper tubes

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130327

Effective date of abandoning: 20151202

C25 Abandonment of patent right or utility model to avoid double patenting