CN2327474Y - Composite long runner gate for continuous casting - Google Patents
Composite long runner gate for continuous casting Download PDFInfo
- Publication number
- CN2327474Y CN2327474Y CN 98203738 CN98203738U CN2327474Y CN 2327474 Y CN2327474 Y CN 2327474Y CN 98203738 CN98203738 CN 98203738 CN 98203738 U CN98203738 U CN 98203738U CN 2327474 Y CN2327474 Y CN 2327474Y
- Authority
- CN
- China
- Prior art keywords
- internal layer
- casting
- utility
- model
- steel
- 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.)
- Expired - Fee Related
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 17
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 16
- 239000010431 corundum Substances 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 13
- 229910052726 zirconium Inorganic materials 0.000 claims description 13
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 12
- 229910052863 mullite Inorganic materials 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000005266 casting Methods 0.000 abstract description 10
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 4
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical compound [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 206010040844 Skin exfoliation Diseases 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000035618 desquamation Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 4
- 238000005255 carburizing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The utility model discloses a composite long water gap for continuous casting, which is shaped with corundum base materials and low cement casting materials, which are adopted. The utility model is composed of an internal layer and an external layer, the external layer which is composed of an upper segment, a lower segment and a slag line position is compounded outside the internal layer, the combination between the internal layer and an external layer and the combination between the sections of the external layer are firm, desquamation is not easy to happen, the utility model is capable of satisfying the requirement of multiple-heat casting, and the service life is long. Because the manufacturing process of the utility model is simple, the cost is low, the corundum base materials solve the problem that an aluminum carbon long water gap infiltrates carbon to steel, and the water gap can be suitable for casting low carbon steel and high clean steel. The materials of each section of the water gap can be adjusted according to requirements, and the service life can be further enhanced.
Description
The compound long nozzle of a kind of continuous casting belongs to the auxiliary device that is used for supplying melting metal in the continuous casting of metal.
Continuous casting of the prior art mostly is with long nozzle that homogenous material makes, and as isostatic compaction aluminium carbon long nozzle, has good anti-thermal shock, erosion resistibility, can satisfy the requirement of sequence casting, but its manufacturing process complexity costs an arm and a leg.In addition, because there is the problem of carburizing in molten steel in it, thereby can't be used for the casting of mild steel and high purity steel.The mouth of a river cost that fused silica material is made is low, do not have carburizing problem in molten steel, but erosion resistibility is poor, and service life is low, can't satisfy the requirement of sequence casting.Chinese patent ZL91233313.8 discloses a kind of " continuous casting composite nozzle ", it makes body with fused silica material, the bottom at its steel import position, top, bottom tapping hole place, slag lining and the mouth of a river, compound respectively containing the mosaics that Zr refractory material is made such as zirconium matter, zirconium mullite matter etc., or be coated with dressing.But in actual the use,, improve the purpose in service life because its mosaics or be coated with dressing and easily come off can't realize that it improves scour resistance.
The objective of the invention is to utilize low cement and ultra-low cement in conjunction with placing, provide a kind of cost low, long service life, the compound long nozzle of continuous casting that be suitable for casting mild steel and high purity steel use.
The objective of the invention is to realize by following measure.
A kind of compound long nozzle of continuous casting that adopts the low cement deposit material moulding of corundum base is made of with skin is two-layer internal layer, and internal layer is compounded with outward by epimere, hypomere and three sections skins that constitute of slag lining.
Outer outer surface is for having the back taper of same tapering from top to bottom, to reduce as far as possible because the stress that reasons in structure produces is concentrated, avoids in the prior art causing stress concentrated, be full of cracks that causes even fracture accident because of a sudden change is arranged on the neck profile.
Interior layer thickness is 3/5～4/5 of a mouth of a river gross thickness, makes it can bear high-temperature molten steel mechanical erosion and strong thermic load effect.
Internal layer is for containing Cr
2O
3With the low cement deposit material of corundum base of zirconium mullite, outer field epimere, hypomere are the low cement deposit material of corundum base that contains steel fibre and zirconium mullite, and slag lining is for containing steel fibre, zirconium mullite, ZrO
2The low cement deposit material of corundum base with MgO.
The advantage that the utility model is compared with prior art had is: this mouth of a river is to utilize low cement and ultra-low cement in conjunction with placing, the low cement deposit material moulding by casting of employing corundum base, internal layer with outer, and outer each several part between combine firm, difficult drop-off, long service life can satisfy the requirement of sequence casting.And owing to itself only need moulding by casting and baking promptly to can be made into, technology is simple, and is with low cost, and per ton cost only is 30%～40% of an isostatic compaction aluminium carbon long nozzle.The corundum sill has solved the problem of aluminium carbon long nozzle carburizing in steel, and this mouth of a river can be adapted to cast mild steel and high purity steel used.And can mouth of a river each several part material be adjusted according to arts demand, to satisfy the requirement of its antiscour, anti-thermal shock, the anti-slagging of retractory respectively, further improve service life.
Below in conjunction with accompanying drawing embodiment of the present utility model is discussed in detail.
Accompanying drawing is the structural representation of the utility model continuous casting with compound long nozzle.
The compound long nozzle of the utility model continuous casting as shown in the figure, is made of internal layer 1 and outer 2, internal layer 1 outer being compounded with by epimere 2a, hypomere 2c and three sections skins that constitute 2 of slag lining 2b.Internal layer 1 thickness is about 2/3 of mouth of a river gross thickness.Outer 2 outer surfaces are for having the back taper of same tapering from top to bottom.Internal layer 1 is for containing Cr
2O
3With the low cement deposit material of corundum base of zirconium mullite, outer 2 epimere 2a, hypomere 2c is the low cement deposit material of corundum base that contains steel fibre and zirconium mullite, and slag lining 2b is for containing steel fibre, zirconium mullite, ZrO
2The low cement deposit material of corundum base with MgO.Corundum sill itself is acidproof, alkaline-resisting, has good wear-resisting, etch resistant properties and volume stability under the high temperature.All be added with zirconium mullite in the ectonexine material, the monocline ZrO in the zirconium mullite
2One crystal transfer, ZrO are arranged about 1100 ℃
2(monocline)
ZrO
2(four directions) has obvious contraction during intensification, be obvious expansion during cooling, bulk effect about 7%.Form micro-crack at material internal like this, helped to improve thermal shock resistance.Be added with Cr in internal layer 1 material
2O
3Make it at high temperature form pink fused alumina solid solution, strengthen hot strength, improve antiscour, polishing machine.Be added with heat-resistant steel fiber in outer 2 materials, make it have excellent thermal shock resistance, the rupture strength loss late after 1200 ℃ of water-cooleds 5 times has only 20%, like a box hat long nozzle is played reinforcement effect.The material of outer 2 slag lining 2b also is added with ZrO being added with on the basis of steel fibre
2And MgO.ZrO
2Have good slag resistance, MgO makes that material forms the spinelle compact tissue at working face under the high temperature, improves anti-slag infiltration and erosiveness.
Claims (4)
1. compound long nozzle of continuous casting that adopts the low cement deposit material moulding of corundum base, it is characterized in that: by internal layer (1) and outer (2) two-layer formation, the outer skin (2) that is compounded with by epimere (2a), hypomere (2c) and three sections formations of slag lining (2b) of internal layer (1).
2. compound long nozzle according to claim 1 is characterized in that: described skin (2) outer surface is for having the back taper of same tapering from top to bottom.
3. compound long nozzle according to claim 1 is characterized in that: described internal layer (1) thickness is 3/5～4/5 of mouth of a river gross thickness.
4. compound long nozzle according to claim 1 is characterized in that: described internal layer (1) is for containing Cr
2O
3With the low cement deposit material of corundum base of zirconium mullite, the epimere (2a) of outer (2), the corundum base low cement deposit material of hypomere (2c) for containing steel fibre and zirconium mullite, slag lining (2b) is for containing steel fibre, zirconium mullite, ZrO
2The low cement deposit material of corundum base with MgO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98203738 CN2327474Y (en) | 1998-04-29 | 1998-04-29 | Composite long runner gate for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98203738 CN2327474Y (en) | 1998-04-29 | 1998-04-29 | Composite long runner gate for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2327474Y true CN2327474Y (en) | 1999-07-07 |
Family
ID=33960505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98203738 Expired - Fee Related CN2327474Y (en) | 1998-04-29 | 1998-04-29 | Composite long runner gate for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2327474Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941327A (en) * | 2012-11-30 | 2013-02-27 | 莱芜钢铁集团有限公司 | Flexible continuously cast water gap and manufacturing method thereof |
-
1998
- 1998-04-29 CN CN 98203738 patent/CN2327474Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941327A (en) * | 2012-11-30 | 2013-02-27 | 莱芜钢铁集团有限公司 | Flexible continuously cast water gap and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106145964B (en) | Dry ramming material for large ladle bottom working lining | |
| CN102335739B (en) | Compound silicon-free long nozzle and manufacturing method thereof | |
| CN102626773A (en) | Continuous casting tundish | |
| CN107141002A (en) | Composite fibre for desulfurization agitator strengthens castable refractory | |
| CN104858409A (en) | Steel ladle for steelmaking | |
| JPS591229B2 (en) | Immersion nozzle for continuous casting of molten steel | |
| CN213052725U (en) | Heat-insulation masonry structure of hot-metal bottle | |
| CN2327474Y (en) | Composite long runner gate for continuous casting | |
| CN102335730B (en) | Silicone-free submersed nozzle and manufacturing method thereof | |
| CN204584250U (en) | A kind of ladle for making steel | |
| CN202683999U (en) | Continuous casting tundish | |
| CN202377516U (en) | Silicon nitride and silicon carbide combined ceramic lift tube with embedded ceramic fiber | |
| CN1026028C (en) | Combined metal-porcelain crucible and making method thereof | |
| CN205989052U (en) | A kind of compound liner body tundish | |
| CN202824646U (en) | Continuous casting sliding gate nozzle sliding plate with laser cladding surface treatment layer | |
| CN104972104A (en) | Manufacturing method and combination mode of tundish working lining | |
| JPS62158561A (en) | Nozzle for low-temperature casting of molten steel | |
| CN114850460A (en) | Steel ladle and preparation method thereof | |
| JP3016124B2 (en) | Molten container and aluminum holding furnace | |
| CN111113638A (en) | Preparation method of low-cost long-service-life slab continuous casting tundish turbulator | |
| JP2519095B2 (en) | Casting nozzle | |
| CN114669733B (en) | Method for repairing long-service-life hot-metal ladle nozzle | |
| CN111113635A (en) | Combined type slab continuous casting tundish turbulence controller | |
| CN1459344A (en) | Prefabricated carbon-free block of work-lining for steel-ladle | |
| CN213388767U (en) | RH dip pipe structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAOSHAN STEEL( GROUP ) CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: 201900 No. 1, middle front road, Baoshan District Shanghai factory Patentee before: Shanghai Baosteel (Group) Company |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |