CN209647606U - A kind of tundish structure for gas-atomized powder - Google Patents
A kind of tundish structure for gas-atomized powder Download PDFInfo
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- CN209647606U CN209647606U CN201920251050.5U CN201920251050U CN209647606U CN 209647606 U CN209647606 U CN 209647606U CN 201920251050 U CN201920251050 U CN 201920251050U CN 209647606 U CN209647606 U CN 209647606U
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- tundish
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Abstract
The utility model discloses a kind of tundish structures for gas-atomized powder, belong to gas-atomized powder technical field.It includes tundish crucible, lets slip a remark, makes layer, cooling coil and shell, the tundish crucible, which is located at, to be made inside layer, tundish crucible bottom center is equipped with circular hole, circular hole, which is coupled, lets slip a remark, the cooling coil, which is placed in, to be made between layer and metal shell, one end of cooling coil connects water inlet, and the other end connects water outlet, and the layer of making is built up by magnesia material.The heavy caliber of the utility model, which is let slip a remark, is not easy blocking package and last-to-freeze liquid, and when atomization, it can be used repeatedly for tundish, improves working efficiency and saves material cost；It is directly heated to leting slip a remark using combustion gas, utilization rate is higher and heat insulation effect is good, improves atomizing effect to which fine powder recovery rate is higher.
Description
Technical field
The utility model belongs to gas-atomized powder technical field, more specifically to a kind of for gas-atomized powder
Tundish structure.
Background technique
The metal powder of aerosolization preparation has the advantages that sphericity is high, oxygen content is low etc..By the development and perfection of many years,
Gas-atomized powder technology has developed into the main method of production high-performance metal and alloy powder, and then becomes and support and push newly
The important means of investigation of materials and development.The basic principle is that liquid metal is ground into droplet and final using high-speed flow
It is frozen into powder, the core of aerosolization technology is control gas to the mechanism of metal liquid, makes the kinetic energy of high-speed flow most
The surface energy for being converted into metal powder of big degree.Currently, flourishing with metal 3D printing technique, relying is used
The preparation of metal powder raw material is increasingly taken seriously, this has also further pushed the development of gas-atomized powder technology and has answered
With.
Raw metal melting is alloy liquid (the general mistake of ingredient qualification by gas-atomized powder Shi Xianyong electric furnace or induction furnace
100~150 DEG C of heat), it is then injected into the tundish on atomizer.Aluminium alloy leaks eye stream by tundish bottom
Out, it meets when passing through nozzle with high-speed flow or water flow and is atomized as fine drop, atomized drop is fast in closed atomizing cup
Speed is frozen into alloy powder.
And the main problem encountered in actual production at present is the easy blocking package of tundish, and atomization is caused to interrupt, main cause is
Molten metal temperature reduces, and viscosity increases, and mobility is deteriorated, and blocking is let slip a remark.Current main counter-measure is to improve pouring metal melt
Temperature, promotes the heat insulation effect of tundish, and specific practice is by medium-high frequency power supply, coil, graphite cannula to tundish, water conservancy diversion
Manage, leting slip a remark carries out induction heating, such as Chinese invention patent CN107096922A disclose it is a kind of for vacuum close coupling aerosol
Change the intermediate bottom pour ladle system of powder processed, including electromagnetic induction coil, housing calandria, inner sleeve tundish, housing flow-guiding mouth heat-transfer pipe,
Inner sleeve flow-guiding mouth and inner wall heat plug, are packaged in inside housing calandria among inner sleeve, inner sleeve flow-guiding mouth is located at housing water conservancy diversion
Inside mouth heat-transfer pipe, housing flow-guiding mouth heat-transfer pipe is connected with housing calandria, inside inner sleeve flow-guiding mouth and inside inner sleeve tundish
It is connected, inner wall heating plug is placed in the inside of inner sleeve tundish Yu inner sleeve flow-guiding mouth, and electromagnetic induction coil is placed in housing heating
Outside body, induction heating consumes a large amount of electric energy and higher cost, and furthermore atomization needs to build tundish structure, material again every time
Expect higher cost.
Chinese invention patent CN106670477A discloses a kind of hermetically sealed atomization tundish of atomized powder and attemperator,
Include: body, tundish is provided in body, tundish bottom is provided with atomizer and tundish filter tip, and atomizer is set
It is equipped with two groups or multiple groups sealed nozzle pad, two side of tundish lower part is provided with nozzle air inlet pipe and protective gas air inlet pipe, body
Bottom is provided with atomizing cup, and atomizing cup top is provided with atomizing cup gas vent, and having heaters, body upper is arranged in body inward flange
It is provided with centring hole, tundish section is trapezoidal, and nozzle air inlet pipe bore is greater than protective gas air inlet pipe.Using heater plus
Heat, atomizer take air pressure balance measure to obtain molten metal flow speed stability, the two higher cost and device design arrangement compared with
For complexity.
Summary of the invention
1, it to solve the problems, such as
During existing aerosolization, molten metal causes tundish to block as temperature reduces, this is practical
Novel to provide a kind of tundish structure for gas-atomized powder, when atomization, it can be used repeatedly for tundish, improves working efficiency
And save material cost；Utilization rate is higher and heat insulation effect is good, improves atomizing effect to which fine powder recovery rate is higher.
2, technical solution
To solve the above problems, the utility model adopts the following technical scheme.
A kind of tundish structure for gas-atomized powder, including tundish crucible, let slip a remark, make layer, cooling coil and
Shell, the tundish crucible, which is located at, to be made inside layer, and tundish crucible bottom center is equipped with circular hole, and circular hole is coupled leakage
Mouth, the cooling coil, which is placed in, to be made between layer and metal shell, and one end of cooling coil connects water inlet, and the other end connects out
The mouth of a river, the layer of making are built up by magnesia material.
In a kind of embodiment of the utility model, the tundish crucible is corundum material, and internal is in inverted cone
Shape, bottom end angle are 13 °~15 °, and bottom is in arc transition.
In a kind of embodiment of the utility model, filled out at the tundish crucible bottom central circular hole and cooperation of leting slip a remark
Filled with alumina powder.
It is described to let slip a remark as boron nitride material in a kind of embodiment of the utility model, it is internal in hollow ladder-like,
Between 6~8mm at its bottom bore minimum.
In a kind of embodiment of the utility model, the lifting lug is arranged on the outside of the cover top portion.
In a kind of embodiment of the utility model, the lifting lug, which is equipped with, suppresses bar, and described suppresses bar one end company
It connects in lifting lug, the other end is free end and can rotate along tie point.
In a kind of embodiment of the utility model, the internal diameter of the water inlet and the internal diameter ratio of water outlet are 1:1.
In a kind of embodiment of the utility model, the lifting lug is that ferrous material is made with shell, lifting lug
Welding is on the shell.
3, beneficial effect
Compared with the prior art, the utility model has the following beneficial effects:
(1) a kind of tundish structure for gas-atomized powder of the utility model, tundish crucible use corundum material,
For the washing away of high-temperature liquid metal, ablation, there is excellent high temperature resistant, corrosion-resistant and wear-resisting property, inside tundish crucible
In inverted cone-shaped, bottom end angle is 13 °~15 °, and bottom is in arc transition, and such angle design makes the flow of molten metal
It keeps stablizing, is conducive to obtain better atomizing effect to which fine powder recovery rate is higher；
(2) a kind of tundish structure for gas-atomized powder of the utility model, lets slip a remark as boron nitride material, high temperature resistant
Molten metal washes away, ablation, internal larger in hollow ladder-like and bore, is not easy blocking package and last-to-freeze liquid, when being atomized again,
It can be used repeatedly for tundish, improves working efficiency and saves material cost；
(3) a kind of tundish structure for gas-atomized powder of the utility model, tundish use gas heating, can be with
Directly be heated to 1000 DEG C or more to leting slip a remark, and heat is to conduct from inside to outside, so utilization rate is higher；
(4) a kind of tundish structure for gas-atomized powder of the utility model, the water inlet internal diameter of cooling coil and
Water outlet internal diameter ratio is 1:1, and cooling coil is efficiently used, and on the one hand cooling heating temperature is higher makes layer, separately
On the one hand make metal shell is heated to be unlikely to deform, prolong the service life；
(5) a kind of tundish structure for gas-atomized powder of the utility model, suppresses bar one end and is connected to lifting lug, separately
One end is free end and can rotate along tie point, and lifting lug is closed by course of work compression bar stress of being hit by a bullet, so that lifting lug realization is self-locking,
And then prevent tundish structure from falling off, play the role of safety and firmness；
(6) a kind of tundish structure for gas-atomized powder of the utility model, in atomization process, tundish crucible bottom
Filling alumina powder resistant to high temperature, prevents tundish inner metal liquid from leaking out from gap, plays at portion's central circular hole and cooperation of leting slip a remark
The effect of sealing, making layer is magnesia material, it can extend soaking time, improve heat insulation effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of tundish structure for gas-atomized powder of the utility model；
Fig. 2 is a kind of structure top view of tundish structure for gas-atomized powder of the utility model；
Fig. 3 is a kind of shackle structure schematic diagram of tundish structure for gas-atomized powder of the utility model.
Figure number explanation:
1, tundish crucible；2, it lets slip a remark；3, layer is made；4, cooling coil；5, shell；6, lifting lug；7, water inlet；8, it is discharged
Mouthful；9, bar is suppressed.
Specific embodiment
The utility model is further described below combined with specific embodiments below.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of tundish structure for gas-atomized powder, including tundish crucible 1, let slip a remark
2, layer 3, cooling coil 4 and shell 5 are made.
Wherein, the tundish crucible 1, which is located at, makes inside layer 3, and 1 bottom center of tundish crucible is equipped with circular hole, circular hole
It is coupled and lets slip a remark 2, the cooling coil 4, which is placed in, to be made between layer 3 and metal shell 5, and one end of cooling coil 4 connects water inlet
Mouth 7, the other end connect water outlet 8, and the layer 3 of making is built up by magnesia material.In use, with gas flame heating let slip a remark 2 to
1000 DEG C or more, molten metal then is poured into tundish crucible 1.
In the present embodiment, tundish crucible 1 is made using corundum material, is in inverted cone inside tundish crucible 1
Shape, bottom end angle are 13 °~15 °, and bottom is in arc transition.It is filled out at 1 bottom center circular hole of tundish crucible and 2 cooperations of leting slip a remark
Filled with alumina powder.2 are let slip a remark as boron nitride material, it is internal in hollow ladder-like, between 6~8mm at the bore minimum of bottom.
When using the tundish structure, it is contemplated that its weight is big, and manual handling is more difficult, therefore in the shell 5
Lifting lug 6 is arranged in top outer, can be transported the tundish structure to job site using driving or crane.In transportational process
In, on the one hand consider that the weight of tundish structure is big, can generate shaking when on the other hand transporting, drives a vehicle or the suspension hook of crane may
It can be detached from lifting lug 6, there are great security risk, applicant's event is equipped on lifting lug 6 suppresses bar 9, suppresses 9 one end of bar
It is connected to lifting lug 6, the other end is free end and can rotate along tie point, suppresses bar 9 and plays self-locking function, avoids suspension hook and lifting lug
6 are detached from, using safer reliable.
Further, the internal diameter ratio of the internal diameter of water inlet 7 and water outlet 8 is 1:1, be ensure that balanced with water outlet into water
Property, good cooling results.Lifting lug 6 is that ferrous material is made with shell 5, and lifting lug 6 is welded on shell 5.
Embodiment 1
In the present embodiment, tundish crucible 1 is corundum material, and internal is in inverted cone-shaped, and bottom end angle is 15 °,
Bottom is in arc transition.Filled with alumina powder at 1 bottom center circular hole of tundish crucible and 2 cooperations of leting slip a remark.2 are let slip a remark as nitridation
Boron material, it is internal in hollow ladder-like, between 8mm at the bore minimum of bottom.The setting of lifting lug 6 is outer at 5 top of shell
Side.Lifting lug 6 is equipped with and suppresses bar 9, suppresses 9 one end of bar and is connected to lifting lug 6, the other end is free end and can rotate along tie point.
The internal diameter of water inlet 7 and the internal diameter ratio of water outlet 8 are 1:1.Lifting lug 6 is that ferrous material is made with shell 5, lifting lug 6
It is welded on shell 5.
Embodiment 2
The structure of the present embodiment and the structure of embodiment 1 are almost the same, the difference is that, the bottom end of tundish crucible 1
Angle is 14 °, and bottom is in arc transition.2 are let slip a remark as boron nitride material, internal in hollow ladder-like, bottom bore is most
Small place is between 8mm.
Embodiment 3
The structure of the present embodiment and the structure of embodiment 1 are almost the same, the difference is that, the bottom end of tundish crucible 1
Angle is 13 °, and bottom is in arc transition.2 are let slip a remark as boron nitride material, internal in hollow ladder-like, bottom bore is most
Small place is between 6mm.
Embodiment 4
The structure of the present embodiment and the structure of embodiment 1 are almost the same, the difference is that, the bottom end of tundish crucible 1
Angle is 15 °, and bottom is in arc transition.2 are let slip a remark as boron nitride material, internal in hollow ladder-like, bottom bore is most
Small place is between 7mm.
Example described in the utility model is only that preferred embodiments of the present invention are described, not to this reality
It is defined with novel conception and scope, under the premise of not departing from the design concept of the utility model, this field engineering technology people
The various changes and improvements that member makes the technical solution of the utility model, should all fall into the protection scope of the utility model.
Claims (8)
1. a kind of tundish structure for gas-atomized powder, it is characterised in that: it include tundish crucible (1), let slip a remark (2),
Layer (3), cooling coil (4) and shell (5) are made, the tundish crucible (1), which is located at, makes layer (3) inside, tundish crucible
(1) bottom center is equipped with circular hole, and circular hole is coupled let slip a remark (2), and the cooling coil (4), which is placed in, makes outside layer (3) and metal
Between shell (5), one end of cooling coil (4) connects water inlet (7), and the other end connects water outlet (8), it is described make layer (3) by
Magnesia material is built up.
2. a kind of tundish structure for gas-atomized powder according to claim 1, it is characterised in that: the tundish
Crucible (1) is corundum material, and internal is in inverted cone-shaped, and bottom end angle is 13 °~15 °, and bottom is in arc transition.
3. a kind of tundish structure for gas-atomized powder according to claim 2, it is characterised in that: the tundish
Filled with alumina powder at crucible (1) bottom center circular hole and (2) cooperation of leting slip a remark.
4. a kind of tundish structure for gas-atomized powder according to claim 3, it is characterised in that: described to let slip a remark
It (2) is boron nitride material, it is internal in hollow ladder-like, between 6~8mm at the bore minimum of bottom.
5. a kind of tundish structure for gas-atomized powder according to any one of claims 1 to 4, it is characterised in that:
It further include lifting lug (6), the lifting lug (6) is arranged in the shell (5) top outer.
6. a kind of tundish structure for gas-atomized powder according to claim 5, it is characterised in that: the lifting lug
(6) it is equipped with and suppresses bar (9), described bar (9) one end of suppressing is connected to lifting lug (6), and the other end is free end and can be along connection
Point rotation.
7. a kind of tundish structure for gas-atomized powder according to claim 1, it is characterised in that: the water inlet
(7) internal diameter ratio of internal diameter and water outlet (8) is 1:1.
8. a kind of tundish structure for gas-atomized powder according to claim 5, it is characterised in that: the lifting lug
It (6) is that ferrous material is made with shell (5), lifting lug (6) is welded on shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251050.5U CN209647606U (en) | 2019-02-27 | 2019-02-27 | A kind of tundish structure for gas-atomized powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251050.5U CN209647606U (en) | 2019-02-27 | 2019-02-27 | A kind of tundish structure for gas-atomized powder |
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| CN209647606U true CN209647606U (en) | 2019-11-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355314A (en) * | 2020-10-28 | 2021-02-12 | 江苏威拉里新材料科技有限公司 | Durable crucible for preparing metal powder |
| CN112985058A (en) * | 2021-03-08 | 2021-06-18 | 重庆国际复合材料股份有限公司 | Rotary casting composite crucible |
-
2019
- 2019-02-27 CN CN201920251050.5U patent/CN209647606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355314A (en) * | 2020-10-28 | 2021-02-12 | 江苏威拉里新材料科技有限公司 | Durable crucible for preparing metal powder |
| CN112985058A (en) * | 2021-03-08 | 2021-06-18 | 重庆国际复合材料股份有限公司 | Rotary casting composite crucible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 243000 No.1, Cishan Road, Yushan Economic Development Zone, Yushan District, Ma'anshan, Anhui Province Patentee after: Ma'anshan Xinkangda Magnetic Industry Co.,Ltd. Address before: 243000 No.1 Cishan Road, Yushan Economic Development Zone, Yushan District, Ma'anshan City, Anhui Province Patentee before: MAANSHAN NEW CONDA MAGNETIC INDUSTRIAL CO.,LTD. |
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| CP03 | Change of name, title or address |