CN1136428C - Water-cooled suspension smelting crucible - Google Patents
Water-cooled suspension smelting crucible Download PDFInfo
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- CN1136428C CN1136428C CNB001029371A CN00102937A CN1136428C CN 1136428 C CN1136428 C CN 1136428C CN B001029371 A CNB001029371 A CN B001029371A CN 00102937 A CN00102937 A CN 00102937A CN 1136428 C CN1136428 C CN 1136428C
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Abstract
The present invention belongs to the technical field of crucibles. A water-cooled suspension smelting crucible uses a cylindrical side wall and a conical bottom which are divided into a plurality of sections by a plurality of cutting slots. A cooling water channel is arranged in each section. The sections of the conical bottom are provided with long water inlets and water outlets, and the cutting slots between the water inlets and the water outlets penetrate through the bottom vertex of the crucible from the top. Two to four branches are divided on the crucible bottom by each water inlet and each water outlet and respectively communicated with the cooling water channels in the side wall. A set of upper induction coils and a set of lower induction coils are used for the crucible periphery and respectively arranged on the appreciably lower position of the top, and the conical position of the bottom.
Description
Technical field
The invention belongs to the crucible technique field.Be applicable to that mainly melting or founding active metal, high pure metal material, alloying element poor properties lead bigger complex alloys.
Background technology
Common cold-crucible, its inner chamber (sidewall) is cylindrical, the bottom is a flat shape.The sidewall of crucible is divided into some distinguish by some joint-cuttings, adopts heat-resisting filling insulating material between each distinguish, and each distinguish is by water quench.In addition at the configuration of the periphery of cold-crucible alternating electromagnetic field, i.e. induction coil.
When cold-crucible is worked, the metal of being smelted in the eddy current heating crucible that induction coil produces.In fusion process, under the effect of electromagnetic force, molten bath and crucible wall and contactless state promptly are suspended among the crucible by smelting metal, avoid motlten metal to suffer the pollution of crucible, realize pollution-free melting.
Early stage cold-crucible is flat, adopt single induction coil, its shortcoming one is that long and narrow crucible lobe body requires the cross section little, thereby heavy in section cooling-water duct can not be set, and the water inlet of cooling water and backflow be arranged in the same cavity, more limited the water flowing area of cooling water; Another shortcoming is because of the crucible bottom seemless, causes the magnetic line of force directly to infiltrate at the bottom of crucible, makes the motlten metal of crucible bottom be difficult for suspending.The described cold-crucible of Chinese patent ZL92113192.5, position at the bottom of the crucible is improved, solved problem, but the identical induction coil of internal diameter is still adopted in the crucible periphery at crucible undercutting seam, can't make the more close crucible bottom of induction coil, influence the suspension effect of crucible bottom.
The flat 8-327244 of Japanese Patent Application Laid-Open discloses the cold-crucible of a kind of twin coil, conical bottom, and with the bottom of the more close crucible of lower coil, the suspending power of crucible bottom increases.But this crucible difficulty on making is very big: on the one hand, in order to improve suspending power, wishing has more joint-cutting in crucible bottom, is beneficial to the magnetic line of force and infiltrates in the crucible; On the other hand, good cooling is arranged, require crucible bottom to hold more cooling-water duct again in order to guarantee crucible bottom, and the space of crucible conical bottom and area are limited, the closer to the crucible center, the space is more little, so " joint-cutting " is very outstanding with the contradiction of " cooling-water duct ".So the described crucible of this patent only is fit to each lobe body monolithic processing, only be fit to adopt unidirectional channelling water structure, promptly intake by crucible bottom, structure by the water outlet of crucible top, assemble up very difficultly, structure is also too complicated, and structure is not compact, be not suitable for whole processing, and security reliability is relatively poor.
Summary of the invention
The object of the present invention is to provide a kind of good water-cooling effect, compact conformation be convenient to whole processing, and suspending power is stronger, the water-cooled suspension smelting crucible that the crucible capacity is changeable.
At above-mentioned purpose, the present invention has adopted following technical scheme:
Water-cooled suspension smelting crucible of the present invention, adopt cylinder side wall and conical lower portion, its sidewall of the furnace body and bottom all are divided into several distinguish by some joint-cuttings, and each distinguish all has cooling-water duct, joint-cutting between the distinguish adopts high temperature insulating material to fill, on the suitable radial location of its crucible bottom, long inlet opening and apopore are set, joint-cutting between inlet opening and apopore directly passes through the crucible bottom summit by crucible top, it is the logical end of joint-cutting, each inlet opening of crucible bottom and apopore all are divided into two branch roads on the diapire of crucible, communicate with cooling-water duct in each distinguish of crucible wall respectively.The joint-cutting number of crucible bottom is 1/2nd of a crucible wall mesopetalum body number, and the number of crucible wall joint-cutting equates that with crucible lobe body number the joint-cutting number at crucible wall top is 1/2nd of a crucible wall mesopetalum body number.At the crucible wall top, up cooling-water duct in two adjacent petals bodies communicates with the descending cooling-water duct in the adjacent petals body, adopt two groups of induction coils in the outside of whole crucible, upper induction coil is positioned at the position of sidewall of crucible top under slightly, and following induction coil is positioned at the periphery at crucible base cone shape position.
When crucible diameter enlarges, the inlet opening of crucible bottom and apopore can communicate with cooling-water duct on each distinguish on the sidewall of crucible respectively being divided into 3 or 4 branch roads on the diapire at the bottom of the crucible, and this moment, the lobe body number of sidewall of crucible was water inlet hole count or water outlet hole count 3 times or 4 times.
Cold-crucible of the present invention can directly be processed by copper bar, also can be processed into sidewall of crucible by the heavy wall copper pipe, is processed into crucible bottom by the taper copper material, and both are welded then.In addition, the cooling water passage structure of cold-crucible of the present invention also is applicable to the smelting in suspension device of flat cold-crucible and a kind of frequency induction coil of employing.
Compared with prior art, the present invention has following advantage:
(1) because cooling-water duct is reasonable in design, the crucible good cooling results is convenient to smelt refractory metal and alloy.
(2) induction coil makes the magnetic line of force fully enter crucible bottom along the close awl end, crucible awl end external parallel ground down, has improved suspending power greatly, thereby has improved the quality of smelting metal.
Description of drawings
Now in conjunction with the accompanying drawings, water-cooled suspension smelting crucible of the present invention is described further.
Accompanying drawing 1 is the structural representation of water-cooled suspension smelting crucible of the present invention.
Accompanying drawing 2 is the upward view and the cooling water endless form schematic diagram of accompanying drawing 1.
Accompanying drawing 3 is up cooling-water duct in water-cooled suspension smelting crucible of the present invention top and descending cooling-water duct mode of communicating schematic diagram.
Accompanying drawing 4 is divided into the schematic diagram of 3 branch roads and cooling water endless form into and out of the water hole for the bottom of crucible diameter after enlarging.
The specific embodiment
Find out by figure, water-cooled suspension smelting crucible of the present invention is made up of cylinder side wall 21 and conical lower portion 22, its sidewall of the furnace body and bottom all are divided into several distinguish by some joint-cuttings 10 and 11, and each distinguish all has cooling-water duct, the joint-cutting employing high temperature insulating material filling between the distinguish.On the suitable radial location of its crucible conical lower portion, be provided with long inlet opening 4 and apopore 5 on each bottom lobe body, and the number of inlet opening 4 and apopore 5 equates, joint-cutting 11 between 4 apopores 5 of inlet opening directly passes through the crucible bottom summit by crucible top, promptly 11 are logical undercutting seam, each inlet opening 4 of crucible bottom and apopore 5 all are divided into two branch roads on the diapire of crucible, communicate with cooling-water duct 14-1 and 14-2,13-1 and 13-2 and 15-1 and 15-2 in each distinguish of crucible wall respectively.The joint-cutting number at the logical end of crucible bottom is 1/2nd of a crucible wall mesopetalum body number, and joint-cutting 10 numbers in the crucible wall are for to equate with lobe body number.The joint-cutting number at crucible wall top is 1/2nd of crucible wall lobe body 12 numbers, and promptly joint-cutting 11 leads directly at crucible top, the also obstructed end of joint-cutting 10.
At the crucible wall top, up cooling-water duct 14-1 in two adjacent petals bodies and 14-2 are communicated with descending cooling-water duct 13-2 and 15-1 in the adjacent petals body.
Adopted two groups of induction coils in whole crucible periphery, last induction coil 8 is positioned at the position of crucible wall top under slightly, promptly is lower than the top; Should feel the periphery that coil 6 is positioned at crucible base cone shape position down.Last induction coil 8 adopts higher frequency current response, and as 30KHz, following induction coil 6 adopts the lower frequency electric current, as 3KHz.
In accompanying drawing 1,1 chews for water inlet, and 2 chew for water outlet, and both join with inlet opening 4 and apopore 5 respectively, and sealing ring 3 is laid in the joint.9 the sheets that bind during for being communicated with of crucible top water inlet and water outlet.⊙ represents that cooling water flows into perpendicular to paper among the figure, and ⊙ represents that cooling water flows out perpendicular to paper, and arrow is represented water (flow) direction.
This crucible adopts the cooling-water duct of one-way flow in the tube chamber in the lobe body, after cooling water enters crucible bottom by inlet opening 4, be divided into two branch roads immediately, then enter two the up cooling-water duct 14-1 and the 14-2 of crucible wall lobe body, after cooling water arrives to the crucible wall upper end, as shown in Figure 3, link to each other with two adjacent descending cooling-water ducts separately, cooling water is flowed in the tank then along descending cooling-water duct 13-2 and 15-1 and descending.Up cooling water (water inlet) passage equates with descending cooling water (water outlet) number of active lanes.In Fig. 3,24 is weld seam, and 25 is metal trough.
Because being communicated with at the crucible top of crucible wall into and out of cooling-water duct, can not joint-cutting so locate the top, make top joint-cutting number reduce half, but do not influence the joint-cutting number of crucible bottom and the joint-cutting number on the crucible wall.In fact, the minimizing of crucible top joint-cutting number, to the not influence of crucible overall performance, because for safety, the molten metal of molten condition can not be filled whole crucible in the crucible, and promptly epimere will have certain space in the crucible, and the height of adding induction coil also is lower than the crucible top slightly, so the minimizing of crucible top joint-cutting number is to the not influence of function of crucible.But make the crucible structure compact more.
The present invention adopts the conical bottom crucible, and the one, be convenient to dispose two groups of induction coils of different frequency, make the own function of upper and lower induction coil performance; The 2nd, can repack crucible into by the bottom discharge opeing; The 3rd, can enlarge crucible diameter, when crucible diameter enlarges, must increase lobe body number, also must increase cooling water pipeline, in the case, crucible bottom structure of the present invention still can remain unchanged, and only inlet opening and apopore is divided into three branch roads, links to each other with cooling-water duct in the crucible wall lobe body respectively.Find out that by Fig. 4 after crucible diameter enlarged, the endless form of cooling water can adopt three branch roads to become one group, be communicated with on the crucible top, make after into three branch roads of water arrive at the crucible top, side direction flows into three branch roads of water outlet that have been communicated with, flows back in the tank through outlet pipeline then.This cooling water pipeline can make the crucible bottom structure remain unchanged, and the joint-cutting of crucible wall does not reduce yet, and just the joint-cutting number at crucible wall top is kept to the sixth of sidewall lobe body number.Simultaneously still can make the crucible top not produce ring current, unlikelyly cause big influence.When crucible diameter further enlarges, can be under the constant situation of crucible bottom structure, make cooling water enter crucible bottom after, tell more branch road, as when being divided into four branch roads, adopt the V-shape hole of stack, communicate with cooling-water duct in the crucible wall lobe body.The V-arrangement cooling-water duct that will be superimposed upon top after cooling water arrives at the crucible top again be communicated with to merge, and communicates with the V-arrangement cooling-water duct of adjacent merging again, and four promptly adjacent cooling-water ducts are communicated with and are one group and make the cooling water circulation.This moment, the joint-cutting number at crucible top was 1/4th of a crucible lobe body number.The crucible bottom cooling water channel of this structure should adopt the method that binds after the groove milling, and the cross section of cooling water channel is a rectangle.
Said structure also is applicable to flat crucible and only adopts the smelting in suspension device of one group of a kind of frequency induction coil.
Claims (3)
1, a kind of water-cooled suspension smelting crucible, adopt cylinder side wall and conical lower portion, its sidewall of the furnace body and bottom are divided into several distinguish by some joint-cuttings, and each distinguish all has cooling-water duct, joint-cutting between the distinguish adopts high temperature insulating material to fill, adopt two groups of induction coils, last induction coil to be positioned at the position of crucible wall top under slightly in the periphery of whole crucible, following induction coil is positioned at the periphery at crucible base cone shape position.It is characterized in that:
[1], on the suitable radial location of its crucible conical lower portion, on each bottom lobe body long inlet opening (4) and apopore (5) are set, both numbers equate, joint-cutting (11) between inlet opening (4) and apopore (5) directly passes through the crucible bottom summit by crucible top, it is the logical end of joint-cutting (11), each inlet opening (4) of crucible bottom and apopore (5) all are divided into two branch roads on the diapire of crucible, communicate with cooling-water duct (14-1,14-2), (13-1,13-2) and (15-1,15-2) in each distinguish of crucible wall respectively;
[2], joint-cutting (11) number at the logical end of crucible bottom is 1/2nd of crucible wall mesopetalum body (12) number, the joint-cutting in the crucible wall (10) number equates with lobe body number, the joint-cutting number at crucible wall top be sidewall of crucible lobe body (12) several 1/2nd;
[3], at the crucible wall top, the up cooling-water duct (14-1 and 14-2) in two adjacent petals bodies communicates with the descending cooling-water duct (13-2 and 15-1) in the adjacent petals body.
2, water-cooled suspension smelting crucible according to claim 1, it is characterized in that after crucible diameter enlarges the inlet opening of crucible bottom (4) and apopore (5) can communicate with cooling-water duct on each distinguish on the sidewall of crucible respectively being divided into 3 or 4 branch roads on the diapire at the bottom of the crucible; When being divided into three branch roads, it is one group that the water inlet cooling-water duct adopts three branch roads, is communicated with at the crucible top, and links to each other with three water outlet cooling-water ducts that are communicated with and to communicate; When being divided into 4 branch roads, adopt the V-shape hole of stack, communicate with the cooling-water duct in the crucible wall lobe body, the V-arrangement cooling-water duct that will be superimposed upon top after cooling water arrives at the crucible top again is communicated with and merges, communicate with the V-arrangement cooling-water duct of adjacent merging again, be that adjacent four cooling-water ducts are communicated with and are one group and make the cooling water circulation, this moment, the joint-cutting number at crucible top was 1/4th of a crucible lobe body number, after the crucible bottom cooling-water duct of this structure adopts groove milling to bind, its cross section is a rectangle, communicates with cooling-water duct in each lobe body on the sidewall of crucible; The lobe body number of sidewall of crucible is inlet opening (4) number or apopore (5) number 4 times.
3, water-cooled suspension smelting crucible according to claim 1 is characterized in that this cold-crucible can directly be processed by copper bar; Also can be processed into sidewall of crucible by the heavy wall copper pipe, be processed into crucible bottom by the taper copper material, both are welded then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001029371A CN1136428C (en) | 2000-03-16 | 2000-03-16 | Water-cooled suspension smelting crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001029371A CN1136428C (en) | 2000-03-16 | 2000-03-16 | Water-cooled suspension smelting crucible |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1267815A CN1267815A (en) | 2000-09-27 |
| CN1136428C true CN1136428C (en) | 2004-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB001029371A Expired - Fee Related CN1136428C (en) | 2000-03-16 | 2000-03-16 | Water-cooled suspension smelting crucible |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122441B (en) * | 2007-09-14 | 2010-06-23 | 哈尔滨工业大学 | Short cold crucible for continuous melting and directional solidification flat blank |
| CN101948958A (en) * | 2009-12-30 | 2011-01-19 | 陈静 | Non-ferrous metal vacuum electromagnetic suspension distillatory refining method and equipment |
| CN101782324B (en) * | 2010-02-05 | 2011-09-28 | 新星化工冶金材料(深圳)有限公司 | Electromagnetic induction electric melting furnace for controlling average nominal diameter of TiB2(TiC) particle group in Al-Ti-B (Al-Ti-C) alloy |
| FI124773B (en) * | 2012-05-09 | 2015-01-30 | Outotec Oyj | PROCEDURE AND ARRANGEMENTS FOR REMOVING GROWTH IN A SUSPENSION MENT |
| CN105222586A (en) * | 2015-10-21 | 2016-01-06 | 上海大学 | A kind of annular water jacketed copper crucible |
| CN106643146A (en) * | 2016-11-15 | 2017-05-10 | 天津林立感应加热电炉制造有限公司 | Heating electric furnace with medium-frequency control touch screen |
| CN109290584A (en) * | 2018-10-23 | 2019-02-01 | 南京理工大学 | A kind of water jacketed copper crucible device for powder by atomization |
| CN109530669B (en) * | 2019-01-11 | 2020-01-07 | 钢铁研究总院 | Method for regulating and controlling melting superheat degree of TiAl alloy poured in water-cooled crucible |
| CN112393588A (en) * | 2020-10-26 | 2021-02-23 | 宝鸡华煜鼎尊材料技术有限公司 | Induction smelting cold crucible with full suspension and strong stirring capacity |
| CN113899209A (en) * | 2021-09-29 | 2022-01-07 | 东北大学 | Double-area induction efficient heating water-cooled crucible |
| CN114850450B (en) * | 2022-06-15 | 2024-05-31 | 北京理工大学唐山研究院 | Refractory high-activity complex alloy suspension induction smelting negative pressure suction casting device and method |
| CN115558814B (en) * | 2022-09-20 | 2023-10-03 | 北京理工大学 | Cold crucible induction smelting method for multielement, high-activity and refractory high-entropy alloy |
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- 2000-03-16 CN CNB001029371A patent/CN1136428C/en not_active Expired - Fee Related
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| CN1267815A (en) | 2000-09-27 |
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