CN209550549U - Diagonal split type cooling water jacket - Google Patents
Diagonal split type cooling water jacket Download PDFInfo
- Publication number
- CN209550549U CN209550549U CN201822111015.1U CN201822111015U CN209550549U CN 209550549 U CN209550549 U CN 209550549U CN 201822111015 U CN201822111015 U CN 201822111015U CN 209550549 U CN209550549 U CN 209550549U
- Authority
- CN
- China
- Prior art keywords
- cooling jacket
- water
- diagonal
- jacket
- copper pipe
- 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.)
- Active
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 44
- 239000010949 copper Substances 0.000 claims abstract description 44
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000009749 continuous casting Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 29
- 238000002224 dissection Methods 0.000 claims description 19
- 229910052792 caesium Inorganic materials 0.000 claims description 9
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 abstract description 6
- 239000010432 diamond Substances 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 4
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 3
- 241001083492 Trapa Species 0.000 description 3
- 235000014364 Trapa natans Nutrition 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000009165 saligot Nutrition 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model relates to a diagonal angle subdivision formula cooling jacket is applied to high casting speed conticaster crystallizer for the position of fixed copper pipe in the crystallizer, the copper pipe is arranged in the cooling water cover and is fixed, forms the water seam between cooling jacket and the copper pipe, and cooling jacket is split type structure, and cooling jacket passes through set screw and installs on the copper pipe, through the clearance between set screw adjustment cooling jacket and the copper pipe, forms even unanimous water seam. Because the casting blank is transferred heat in the copper pipe of the crystallizer through the casting powder, a certain probability of generating unevenness exists, the split type cooling water jacket can be more suitable for the casting blank with uneven surface, the split type cooling water jacket respectively adjusts the gap (namely the water gap) between the cooling water jacket and the copper pipe through the positioning screws aiming at the outer surface of the casting blank, the uniformity of the water gap is ensured, namely the uniformity of the water quantity passing through the water gap is ensured, the phenomena of diamond deformation, bulging and the like of the casting blank are eliminated, and the surface quality of the casting blank is improved. Belongs to the field of metal continuous casting.
Description
Technical field
The utility model relates to continuous casting of metal field, specifically a kind of diagonal dissection type cooling jacket.
Background technique
In process of production, pulling rate is fast for high-speed continuous casting machine, high production efficiency, can obtain more products in the unit time.
But under high pulling rate, molten steel must accelerate condensation under same crystallizer cooling length, form the first green compact of adequate thickness as early as possible
Shell.There is the surface defect of bloom of water chestnut change in the slab that water seam between cooling jacket and copper pipe unevenly will lead to production.
Since rectangular casting blank off-square formula, that is, diagonal line differs by more than 8mm, wire drawing phenomenon will occur at two frame of steel rolling, and block up steel
Probability increases.
Molten steel transfers heat to copper pipe by liquid covering slag in crystallizer, and what is flowed through between copper pipe and cooling jacket is cold
But water takes away the heat of copper pipe inner surface, achievees the purpose that quickly to reduce molten steel temperature indirectly.Cooling water is stitched uniform by water
Property, it is the key that uniformly to take away copper pipe internal surface temperature.
The production method for the cooling water jacket of crystallizer that the country generallys use has two kinds: 1, welding fabrication is cold after clod wash or hot bending
But water jacket；2, whole heating post-tensioning dials molding cooling jacket.This two kinds of cooling jackets, all there is weld job, cooling jackets
Deformation can be generated substantially during welding, drawn after dialling processing operation process, have a certain amount of rebound after stainless steel molding, cause
This two kinds of cooling jackets cannot be parallel with the camber line of copper pipe in part, to influence to stitch water uniformity by water.
Slab is conducted heat in crystallizer copper pipe by covering slag, there is certain generation inhomogeneities probability.It is cooling
The sporadic inhomogeneities probability of width of water seam between water jacket and copper pipe will increase slab and form the probability that water chestnut becomes, pulling rate
It is promoted, by the serious probability for expanding billet diamond distortion.Occur water chestnut when slab exports under crystallizer out and becomes defect, this situation
It will be irreversible.
Utility model content
For the technical problems in the prior art, the purpose of this utility model is: it is cold to provide a kind of diagonal dissection type
But water jacket, the cooling jacket use the split type structure of diagonal subdivision, referring to slab outer surface adjusted by positioning screw it is cold
But the gap between water jacket and copper pipe (i.e. water seam) guarantees the uniformity of water seam, that is, guarantees the uniform of the water passed through in water seam
Property, and then phenomena such as elimination billet diamond distortion, bulge, improve cc billet surface quality.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of diagonal dissection type cooling jacket is applied to high casting speed continuous casting machine crystallizer, for fixing copper pipe in crystallizer
Interior position, copper pipe are placed in cooling jacket fixed, formation water seam between cooling jacket and copper pipe, suitable for continuous casting square billet or square
Shape base, cooling jacket are the split type structure of diagonal subdivision, and by rectangular or rectangle diagonal line subdivision, cooling jacket passes through positioning
Screw is mounted on copper pipe, adjusts the gap between cooling jacket and copper pipe by positioning screw, forms uniform water seam.
After this structure, since slab is conducted heat in crystallizer copper pipe by covering slag, there is certain inhomogeneities, seperated
The cooling jacket of formula is suitable for the non-uniform slab in surface, and each seperated outer surface for being directed to slab respectively of cooling jacket passes through
Positioning screw adjusts the gap (i.e. water seam) between cooling jacket and copper pipe, guarantees the uniformity of water seam, i.e., leads in guarantee water seam
The uniformity for the water crossed, and then phenomena such as elimination billet diamond distortion, bulge, improve cc billet surface quality.
Preferably, four angle arc transitions of cooling jacket, cooling jacket are split into outer by rectangular or rectangle diagonal line
Arc diagonal panels and inner arc diagonal panels, are bolted between outer arc diagonal panels and inner arc diagonal panels.After this structure, dress
It tears open conveniently.
Preferably, several positioning screws are laid on each face of outer arc diagonal panels and inner arc diagonal panels.Using this
After structure, the width of water seam is adjusted by each positioning screw, guarantees the uniformity of water seam, while can be according to actual use situation
Select suitable water speed.
Preferably, the width range of water seam is between 0.5-3mm.
It preferably, further include water jacket flange and keypad, the position of corresponding installation water jacket flange is equipped with peace on cooling jacket
Fill groove；Keypad is stuck in installation groove, and water jacket flange is fastened on cooling jacket by bolt and keypad, water jacket flange
At the lower section 170-200mm suitable for reading positioned at cooling jacket.After this structure, cooling water in crystallizer is divided by water jacket flange
Two areas make high-pressure cooling water that can only flow through water seam.
Preferably, the outer rim of water jacket flange as a whole is circle, and inner edge is rectangular or rectangle, and bottom face is equipped with similar to inner edge
Groove I.After this structure, groove I seals on water jacket flange for being connected with the ring type seal of crystallizer ontology
Lower two intracavitary cooling waters, make cooling water can only be by the bore passages of cooling jacket.
Preferably, the shape of keypad and the shape of cooling jacket are similar, and bolt hole is laid in keypad.
Preferably, the wall thickness of cooling jacket is 12-14mm, on cooling jacket, corresponding installation crystallizer caesium source and reception
The installation site of device, milling have caesium source installation position and receiver installation position.After this structure, so that caesium source installation position and connecing
It is thinning to receive corresponding wall thickness at device installation position, under the premise of the intensity of guarantee cooling jacket entirety, rigidity requirement, reduces wall thickness
Influence to the radiation obstruction and the signal to receiver in caesium source.
Preferably, the end suitable for reading of cooling jacket is laid with jacking block；Cooling jacket and keypad are made of stainless steel.
Preferably, the top of jacking block is higher by the end suitable for reading of cooling jacket.After this structure, it is logical to reserve cooling water
Road.
Generally speaking, the utility model has the advantages that
1. the cooling jacket uses the split type structure of diagonal subdivision, adjusted referring to the outer surface of slab by positioning screw
Gap (i.e. water seam) between cooling jacket and copper pipe guarantees the uniformity of water seam, that is, guarantees the equal of the water passed through in water seam
Even property, and then phenomena such as elimination slab diamonding, bulge, improve cc billet surface quality.
2. the inner cavity of outer arc diagonal panels and inner arc diagonal panels is processed using numerically-controlled machine tool, it is also necessary to carry out finishing to copper pipe
Work, ensure that the relatively parallel curve of cooling jacket inner cavity with the copper pipe exocoel of crystallizer, flow between water seam to reduce
Inhomogeneities through cooling water reduces the inhomogeneities that copper pipe transfers heat to cooling water, effectively raises steel in copper pipe
The uniformity of liquid solidification, reduces the probability that billet diamond distortion is formed under high pulling rate.
3. the cooling jacket of the split type structure of diagonal subdivision can be actually needed according to casting blank shape and scene, crystallizer copper
The exocoel of pipe designs, and carries out water seam adjustment, can select suitable water speed according to actual needs, it is high-quality to reach the high pulling rate of conticaster
The purpose of amount.
Detailed description of the invention
Fig. 1 is the overall schematic for the separate structure that cooling jacket is diagonal dissection type.
Fig. 2 is the top view for the separate structure that cooling jacket is diagonal dissection type.
Fig. 3 is the cross-sectional view for the separate structure that cooling jacket is diagonal dissection type.
Fig. 4 is the structural schematic diagram of outer arc diagonal panels.
Fig. 5 is the structural schematic diagram of inner arc diagonal panels.
Fig. 6 is the top view of outer arc diagonal panels.
Fig. 7 is the top view of inner arc diagonal panels.
Fig. 8 is the structural schematic diagram of jacking block.
Fig. 9 is the structural schematic diagram of keypad.
Figure 10 is the structural schematic diagram of water jacket flange.
Figure 11 is the structural schematic diagram of positioning screw.
Label and corresponding parts title in figure are as follows: 1 is water jacket flange, and 2 be keypad, and 3 be installation groove, and 4 be top
Block, 5 be positioning screw, and 6 be caesium source installation position, and 7 be receiver installation position, and 8 be jacking block installation position.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in more detail, but the reality of the utility model
It is without being limited thereto to apply mode.
A kind of diagonal dissection type cooling jacket is applied to high casting speed continuous casting machine crystallizer, for fixing copper pipe in crystallizer
Interior position, copper pipe are placed in cooling jacket fixed, formation water seam between cooling jacket and copper pipe.The width range of water seam exists
Between 0.5-3mm, it is applied to square billet or rectangular bloom.
The cross sectional shape of cooling jacket is rectangular or rectangle, and four angle arc transitions, cooling jacket is point of diagonal subdivision
Body formula structure is diagonally pressed arc direction subdivision, split surface and is faced directly in 45° angle.It is diagonal including outer arc diagonal panels, inner arc
Plate, water jacket flange, 4 jacking blocks and keypad；Outer arc diagonal panels and inner arc diagonal panels are inter-connected via a bolt joint to form cooling jacket,
Outer arc diagonal panels and inner arc diagonal panels are in the corresponding peace with a distance from suitable for reading to be equipped with lateral water jacket flange at 170mm-200mm
Dress groove is equipped with the jacking block installation position for installing jacking block in end suitable for reading, is equipped with positioning at corresponding installation positioning screw
Screw mounting hole, is equipped with caesium source installation position on outer arc diagonal panels top, is equipped with receiver installation position on inner arc diagonal panels top.Outside
Arc diagonal panels and inner arc diagonal panels are made of stainless steel, and wall thickness range is 12-14mm, the inner cavity arc of inside and outside arc diagonal panels
Degree is all made of numerically-controlled machine tool and carries out milling processing, and the inner cavity camber line of cooling jacket is in relatively parallel two with the exocoel camber line of copper pipe
Camber line, control errors are within 0.5mm.The width of installation groove is 10-12mm, depth 3.5-4.5mm.
For water jacket flange sleeve at the installation groove of the water jacket flange of cooling jacket, the outer rim of water jacket flange as a whole is circle
Shape, inner edge are rectangular or rectangle, and bottom face is equipped with groove I similar with inner edge.Bolt hole is drilled in keypad, keypad is by two pieces
U-typed stainless steel plate is formed by connecting, and bolt hole is uniformly distributed at a distance of 50-60mm, and the shape of keypad is rectangular or rectangle, with water jacket flange
Inner edge it is similar.Keypad is stuck in the installation groove of water jacket flange, and keypad is bolted with water jacket flange.Water jacket flange will
Crystallizer internal cavity sealing is divided into two chambers up and down；Cavity of resorption is the water inlet of cooling water, and epicoele is the water outlet of cooling water, in cooling jacket
Chamber is that cooling water flows through channel.Groove I seals water jacket flange or more two for being connected with the ring type seal of crystallizer ontology
A intracavitary cooling water makes cooling water can only be by the bore passages of cooling jacket.
The lower part of jacking block is set there are two bolt hole, and 4 jacking blocks are uniformly mounted on the end suitable for reading of cooling jacket by bolt
4 jacking block installation positions at.The top of jacking block is higher by end 17mm suitable for reading, and formation flows through cooling water between cooling jacket and copper pipe
Exhalant canal.Jacking block is used for flange copper pipe, and withstands the sealing flange on crystallizer.Receiver installation position is one a length of
The groove that 90mm, width 80mm, depth are 3.5mm, caesium source installation position is an a length of 145mm, width 70mm, depth are the recessed of 3.5mm
Slot.The width of groove I is 16.5mm, depth 5mm.
Each face of cooling jacket is evenly equipped with three row's positioning screws, 1 positioning screw of upper row, 2 positioning screws of middle row, under
Arrange 2 positioning screws.Outer arc diagonal panels and inner arc diagonal panels are mounted on copper pipe by positioning screw, pass through each positioning screw tune
Gap between whole cooling jacket and copper pipe forms uniform water seam.Since slab passes through protection in crystallizer copper pipe
Slag heat transfer, there is certain inhomogeneities, the cooling jacket of diagonal dissection type is suitable for the non-uniform slab in surface, passes through
The gap (i.e. water seam) between cooling jacket and copper pipe is adjusted, guarantees the uniformity of water seam, i.e., the water passed through in guarantee water seam
Uniformity, and then eliminate billet diamond distortion, bulge phenomena such as, improve cc billet surface quality.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (10)
1. a kind of diagonal dissection type cooling jacket is applied to high casting speed continuous casting machine crystallizer, for fixing copper pipe in crystallizer
Position, copper pipe is placed in cooling jacket fixed, water seam is formed between cooling jacket and copper pipe, it is characterised in that: be suitable for connecting
Square billet or rectangular bloom are cast, cooling jacket is the split type structure of diagonal subdivision, by rectangular or rectangle diagonal line subdivision, cooling water
Set is mounted on copper pipe by positioning screw, adjusts the gap between cooling jacket and copper pipe by positioning screw, is formed uniform
Consistent water seam.
2. diagonal dissection type cooling jacket described in accordance with the claim 1, it is characterised in that: four angle circular arc mistakes of cooling jacket
It crosses, cooling jacket is split into outer arc diagonal panels and inner arc diagonal panels, outer arc diagonal panels and inner arc by rectangular or rectangle diagonal line
It is bolted between diagonal panels.
3. diagonal dissection type cooling jacket according to claim 2, it is characterised in that: outer arc diagonal panels and inner arc diagonal panels
Each face on be laid with several positioning screws.
4. diagonal dissection type cooling jacket described in accordance with the claim 1, it is characterised in that: the width range of water seam is in 0.5-
Between 3mm.
5. diagonal dissection type cooling jacket described in accordance with the claim 1, it is characterised in that: it further include water jacket flange and keypad,
The position of corresponding installation water jacket flange is equipped with installation groove on cooling jacket；Keypad is stuck in installation groove, and water jacket flange is logical
It crosses bolt and keypad is fastened on cooling jacket, water jacket flange is located at cooling jacket lower section 170-200mm suitable for reading.
6. diagonal dissection type cooling jacket according to claim 5, it is characterised in that: the outer rim of water jacket flange as a whole is circle
Shape, inner edge are rectangular or rectangle, and bottom face is equipped with groove I similar with inner edge.
7. diagonal dissection type cooling jacket according to claim 5, it is characterised in that: the shape of keypad and cooling jacket
Shape is similar, and bolt hole is laid in keypad.
8. diagonal dissection type cooling jacket described in accordance with the claim 1, it is characterised in that: the wall thickness of cooling jacket is 12-
14mm, on cooling jacket, the installation site in corresponding installation crystallizer caesium source and receiver, milling has caesium source installation position and reception
Device installation position.
9. diagonal dissection type cooling jacket according to claim 5, it is characterised in that: the end suitable for reading of cooling jacket is uniformly distributed
Equipped with jacking block；Cooling jacket and keypad are made of stainless steel.
10. diagonal dissection type cooling jacket according to claim 9, it is characterised in that: the top of jacking block is higher by cooling water
The end suitable for reading of set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111015.1U CN209550549U (en) | 2018-12-17 | 2018-12-17 | Diagonal split type cooling water jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111015.1U CN209550549U (en) | 2018-12-17 | 2018-12-17 | Diagonal split type cooling water jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209550549U true CN209550549U (en) | 2019-10-29 |
Family
ID=68302416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822111015.1U Active CN209550549U (en) | 2018-12-17 | 2018-12-17 | Diagonal split type cooling water jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209550549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604545A (en) * | 2018-12-17 | 2019-04-12 | 阳春新钢铁有限责任公司 | Diagonal split type cooling water jacket |
| CN114289995A (en) * | 2021-12-15 | 2022-04-08 | 唐山渤冶工业技术有限公司 | Manufacturing method of arc-shaped water jacket |
-
2018
- 2018-12-17 CN CN201822111015.1U patent/CN209550549U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604545A (en) * | 2018-12-17 | 2019-04-12 | 阳春新钢铁有限责任公司 | Diagonal split type cooling water jacket |
| CN114289995A (en) * | 2021-12-15 | 2022-04-08 | 唐山渤冶工业技术有限公司 | Manufacturing method of arc-shaped water jacket |
| CN114289995B (en) * | 2021-12-15 | 2023-09-26 | 唐山渤冶工业技术有限公司 | Manufacturing method of arc-shaped water jacket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209550549U (en) | Diagonal split type cooling water jacket | |
| CN100491051C (en) | Fabrication technique for welding box cover and box body made from stainless steel sheet | |
| CN106694855A (en) | Low-pressure casting aluminum wheel mold | |
| CN104325098B (en) | A kind of cast iron horizontal continuous-casting Double-water jacket type crystallizer | |
| CN110252983B (en) | Method for controlling cracks of micro-alloy steel near-net-shape special-shaped continuous casting billet | |
| CN109604545A (en) | Diagonal split type cooling water jacket | |
| CN110814299A (en) | Casting and pouring system for gray iron pressure plate of clutch | |
| CN113333707B (en) | Method for casting rectangular blank in non-clamping section of R10-meter arc continuous casting machine | |
| CN100355992C (en) | Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device | |
| CN206009788U (en) | A kind of improved low pressure casting wheel mould | |
| CN211727411U (en) | Crystallizer for producing square billet copper alloy cast ingot | |
| CN108246991A (en) | A kind of semi-continuous casting device and method for inhibiting magnesium alloy ingot blank cracking | |
| CN107746971B (en) | A method of with electron-beam cold bed furnace cast titanium or titanium alloy hollow ingot | |
| CN208019399U (en) | A kind of mold for improving center intensity of cooling in aluminum-alloy wheel casting process | |
| CN209849850U (en) | Centrifugal casting mould for high-phosphorus cast iron cylinder sleeve | |
| CN207431225U (en) | A kind of water cooling mold for cast aluminum alloy wheel | |
| CN218503303U (en) | Water cooling mold for improving amorphous plate die-casting forming size | |
| CN108504941A (en) | A kind of production method for being suitable for straight dress and heating low-alloy high-tensile structural steel slab | |
| CN217252739U (en) | Quick even heat dissipation die block of low pressure casting | |
| CN109405542A (en) | Titanium alloy smelting copper crucible | |
| CN104001887B (en) | A kind of device on strand width, secondary cooling water shunted | |
| CN108772546A (en) | A kind of production method being suitable for straight dress heating mould plate slab | |
| WO2014076553A2 (en) | Method to manufacture a crystallizer with plates for the continuous casting of slabs, and crystallizer thus obtained | |
| CN108746532A (en) | A kind of production method being suitable for straight dress heated pressure container quenched and tempered high tensile strength plate base | |
| CN220240007U (en) | Novel round billet crystallizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |