CN114082909A - Continuous casting mold flux for low-alloy high-strength beam steel - Google Patents
Continuous casting mold flux for low-alloy high-strength beam steel Download PDFInfo
- Publication number
- CN114082909A CN114082909A CN202111234719.8A CN202111234719A CN114082909A CN 114082909 A CN114082909 A CN 114082909A CN 202111234719 A CN202111234719 A CN 202111234719A CN 114082909 A CN114082909 A CN 114082909A
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- mold flux
- crystallizer
- casting
- low
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000009749 continuous casting Methods 0.000 title claims abstract description 50
- 239000000956 alloy Substances 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 230000004907 flux Effects 0.000 title claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 15
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 15
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 15
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 13
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 13
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 12
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 11
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 abstract description 50
- 239000000843 powder Substances 0.000 abstract description 36
- 230000008018 melting Effects 0.000 abstract description 15
- 238000002844 melting Methods 0.000 abstract description 15
- 238000012546 transfer Methods 0.000 abstract description 13
- 230000001050 lubricating effect Effects 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052664 nepheline Inorganic materials 0.000 description 1
- 239000010434 nepheline Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a continuous casting mold flux for low-alloy high-strength beam steel, which comprises the following chemical components in percentage by mass: CaO: 25 to 34% of SiO2：26～35%，Al2O3：2～8%，Na2O：6～10%，CaF2：6～12%，MgO：4～8%，TiO2: 1-3%, C: 2-4% and the balance of impurities. The invention ensures the rapid melting of the covering slag and the good lubricating and heat transfer performance between the covering slag and the crystallizer in the continuous casting process through reasonable component design, and a small amount of TiO is added into the covering slag2The phenomenon that the performance of the casting powder is deteriorated due to the reaction of Ti and slag in steel is effectively inhibited, so that the defects of casting blanks are reduced, and the smooth continuous casting is ensured.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to continuous casting covering slag for a low-alloy high-strength girder.
Background
The continuous casting covering slag is an important metallurgical material for ensuring the smooth continuous casting and improving the quality of casting blanks, and becomes an essential auxiliary material in the continuous casting process. The casting powder on the crystallizer can play the roles of heat insulation, heat preservation, molten steel heat loss reduction, absorption and dissolution of nonmetallic inclusion, air isolation, molten steel secondary oxidation prevention, lubrication and heat transfer between the crystallizer and a casting blank and the like during continuous casting.
With the development of light weight of automobiles, the high-strength steel greatly meets the market demand by virtue of the advantages of high strength, light weight and the like. The low-alloy high-strength steel is improved in strength mainly by adding micro-alloy elements such as Nb and Ti, and in the continuous casting process, the Ti element in the steel is more active and reacts with certain elements in the covering slag to form TiO2Therefore, the components of the casting powder are changed, the performance is deteriorated, and good lubricating and heat transferring effects cannot be achieved in the crystallizer, so that the continuous casting smoothness and the casting blank quality cannot be guaranteed.
Disclosure of Invention
The invention aims to provide the continuous casting covering slag for the low-alloy high-strength beam steel, which can effectively inhibit the reaction of Ti in the steel and the covering slag, reduce the precipitation of high-melting-point crystals, ensure that the melting point and the viscosity of the continuous casting covering slag cannot be increased sharply, and ensure the consumption of the covering slag in the continuous casting process, thereby ensuring the lubrication and the heat transfer of a crystallizer and the absorption of impurities in the steel, ensuring the smooth continuous casting and reducing the quality problem of a casting blank.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the continuous casting covering slag for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 25 to 34% of SiO2：26～35%，Al2O3：2～8%，Na2O：6～10%，CaF2：6～12%，MgO：4～8%，TiO2: 1-3%, C: 2-4% and the balance of impurities.
The alkalinity of the covering slag is binary alkalinity, namely CaO/SiO2The alkalinity range is 0.7-1.3, the viscosity of the casting powder is reduced along with the increase of the alkalinity, the melting temperature is increased after being reduced, and the lowest value is 0.9-1.0. Therefore, the alkalinity is preferably 0.8-1.1, CaO and SiO2The preferable control range is CaO: 27 to 32% of SiO2：28～34%。
The viscosity and the melting point of the casting powder are along with Al2O3The increase of the content results in the decrease of slag consumption and is not beneficial to the lubrication of a slag channel, but in the solidification process of the slag, the slag is beneficial to the precipitation of nepheline, inhibits the precipitation of kyanite and is beneficial to the heat transfer between the molten steel and the wall of the crystallizer. Thus Al2O3The content is preferably controlled within the range of 2-6%.
Na in the casting powder2O is a net chain structure limiter in the molten slag, can destroy the net chain structure of the silicate, promotes the migration and diffusion of ions, enhances the fluidity of the molten protective slag, and is beneficial to increasing the slag consumption. Thus Na2The preferable control range of the O content is 6-9%.
The viscosity and the melting point of the casting powder of the invention are along with those of CaF2The content is increased and reduced, which is beneficial to increasing the slag consumption and improving the lubricating effect in the crystallizer. Thus CaF2The content is preferably controlled within the range of 8-11%.
The MgO content in the casting powder can reduce the viscosity and the melting point of the casting powder, and the preferable control range of the MgO content is 6-8%.
TiO in the covering slag of the invention2The method can inhibit the reaction of Ti in the steel and the casting powder, reduce the precipitation of high-melting-point crystals, avoid the performance deterioration of the casting powder, and optimally control the content within 1-2%.
Compared with the prior art, the invention has the beneficial effects that: 1. the invention ensures the rapid melting of the covering slag and the good lubricating and heat transfer performance between the covering slag and the crystallizer in the continuous casting process through reasonable component design; 2. by adding a small amount of TiO into the mold flux2Effectively inhibit the reaction of Ti and slag in steelThe performance of the casting powder is deteriorated, so that the defects of casting blanks are reduced, and the smooth continuous casting is ensured; 3. the yield of Ti alloy in steel is improved.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 27% of SiO2：34%，Al2O3：2%，Na2O：9%，CaF2：11%，MgO：8%，TiO2: 1%, C: 2 percent and the balance of impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 0.8, the viscosity is 0.15 Pa.s, the melting temperature is 1017 ℃, and the consumption of steel slag per ton is 0.35 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 2
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 29% of SiO2：29.5%，Al2O3：4%，Na2O：7%，CaF2：10%，MgO：7%，TiO2: 1%, C: 2 percent and the balance of impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 1.0, the viscosity is 0.13 Pa.s, the melting temperature is 984 ℃, and the consumption of steel slag per ton is 0.37 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 3
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 32% of SiO2：28%，Al2O3：3%，Na2O：6%，CaF2：8%，MgO：6%，TiO2: 2%, C: 3 percent, and the balance being impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 1.1, the viscosity is 0.09 Pa.s, the melting temperature is 1039 ℃, and the consumption of steel slag per ton is 0.35 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 4
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 31% of SiO2：32%，Al2O3：5%，Na2O：8%，CaF2：9%，MgO：5%，TiO2: 1.5%, C: 3 percent, and the balance being impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 1.0, the viscosity is 0.12 Pa.s, the melting temperature is 992 ℃, and the consumption of each ton of molten steel is 0.36 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 5
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 34% of SiO2：26%，Al2O3：6%，Na2O：6.5%，CaF2：12%，MgO：4%，TiO2: 3%, C: 4 percent, and the balance being impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 1.3, the viscosity is 0.08 Pa.s, the melting temperature is 1135 ℃, and the consumption of steel slag per ton is 0.33 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 6
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 28% of SiO2：30%，Al2O3：5%，Na2O：8.5%，CaF2：7%，MgO：6.5%，TiO2: 2.5%, C: 4 percent, and the balance being impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 0.9, the viscosity is 0.14 Pa.s, the melting temperature is 1004 ℃, and the consumption of steel slag per ton is 0.34 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 7
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 25% of SiO2：35%，Al2O3：8%，Na2O：9.5%，CaF2：6%，MgO：7.5%，TiO2: 2%, C: 3 percent, and the balance being impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 0.7, the viscosity is 0.16 Pa.s, the melting temperature is 1123 ℃, and the consumption of steel slag per ton is 0.32 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Example 8
The continuous casting mold flux for the low-alloy high-strength beam steel comprises the following chemical components in percentage by mass: CaO: 26% of SiO2：29%，Al2O3：7%，Na2O：10%，CaF2：8%，MgO：5.5%，TiO2: 1.5%, C: 2 percent and the balance of impurities.
During continuous casting production, the casting powder is added into a crystallizer, the casting powder can be rapidly melted and uniformly spread on the surface of molten steel in the crystallizer, the alkalinity of the casting powder is 0.9, the viscosity is 0.12 Pa.s, the melting temperature is 985 ℃, and the consumption of steel slag per ton is 0.38 kg/t. The drawing speed is kept constant at 1.1m/min, the liquid level of molten steel in the crystallizer is stable, the fluctuation is small, the protective slag has good lubricating and heat transfer effects between the crystallizer and a casting blank, the surface of the continuous casting blank is good as a whole, the vibration mark is shallow, no obvious defect exists, and the expected purpose is achieved.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (7)
1. The continuous casting covering slag for the low-alloy high-strength beam steel is characterized by comprising the following chemical components in percentage by mass: CaO: 25 to 34% of SiO2：26～35%，Al2O3：2～8%，Na2O：6～10%，CaF2：6～12%，MgO：4～8%，TiO2: 1-3%, C: 2-4% and the balance of impurities.
2. The continuous casting mold flux for low-alloy, high-strength beam steel as claimed in claim 1, wherein said CaO content in said mold flux is27 to 32% of SiO2The content is 28-34%.
3. The continuous casting mold flux for low-alloy high-strength beam steel as claimed in claim 1, wherein said Al in said mold flux2O3The content is 2-6%.
4. The continuous casting mold flux for low-alloy high-strength beam steel as claimed in claim 1, wherein said Na in said mold flux2The content of O is 6-9%.
5. The continuous casting mold flux for low-alloy high-strength beam steel as claimed in claim 1, wherein said CaF in said mold flux2The content is 8-11%.
6. The continuous casting mold flux for low-alloy high-strength beam steel as claimed in claim 1, wherein the MgO content in the mold flux is 6-8%.
7. The continuous casting mold flux for low-alloy high-strength beam steel as claimed in claim 1, wherein said TiO in said mold flux2The content is 1-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234719.8A CN114082909A (en) | 2021-10-22 | 2021-10-22 | Continuous casting mold flux for low-alloy high-strength beam steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234719.8A CN114082909A (en) | 2021-10-22 | 2021-10-22 | Continuous casting mold flux for low-alloy high-strength beam steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114082909A true CN114082909A (en) | 2022-02-25 |
Family
ID=80297396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111234719.8A Pending CN114082909A (en) | 2021-10-22 | 2021-10-22 | Continuous casting mold flux for low-alloy high-strength beam steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114082909A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107890A (en) * | 2013-04-19 | 2014-10-22 | 宝山钢铁股份有限公司 | Continuously-cast mold powder for cold-rolled sheet steel and production method thereof |
| CN104399922A (en) * | 2014-11-28 | 2015-03-11 | 中南大学 | Novel corrosion-resistant alloy steel continuous casting powder and application thereof |
| WO2015190347A1 (en) * | 2014-06-10 | 2015-12-17 | 新日鐵住金株式会社 | MOLD FLUX FOR CONTINUOUS CASTING OF Ti-CONTAINING SUB-PERITECTIC STEEL AND CONTINUOUS CASTING METHOD |
| CN105935750A (en) * | 2016-06-21 | 2016-09-14 | 唐山钢铁集团有限责任公司 | Continuous casting protective slag for high-boron steel |
| CN110315038A (en) * | 2018-03-29 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of crystallizer protecting residue preventing slag and application |
| CN113102702A (en) * | 2021-04-09 | 2021-07-13 | 东北大学 | High-basicity low-reactivity continuous casting covering slag for high-titanium steel and preparation method thereof |
-
2021
- 2021-10-22 CN CN202111234719.8A patent/CN114082909A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107890A (en) * | 2013-04-19 | 2014-10-22 | 宝山钢铁股份有限公司 | Continuously-cast mold powder for cold-rolled sheet steel and production method thereof |
| WO2015190347A1 (en) * | 2014-06-10 | 2015-12-17 | 新日鐵住金株式会社 | MOLD FLUX FOR CONTINUOUS CASTING OF Ti-CONTAINING SUB-PERITECTIC STEEL AND CONTINUOUS CASTING METHOD |
| CN104399922A (en) * | 2014-11-28 | 2015-03-11 | 中南大学 | Novel corrosion-resistant alloy steel continuous casting powder and application thereof |
| CN105935750A (en) * | 2016-06-21 | 2016-09-14 | 唐山钢铁集团有限责任公司 | Continuous casting protective slag for high-boron steel |
| CN110315038A (en) * | 2018-03-29 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of crystallizer protecting residue preventing slag and application |
| CN113102702A (en) * | 2021-04-09 | 2021-07-13 | 东北大学 | High-basicity low-reactivity continuous casting covering slag for high-titanium steel and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101745615B (en) | Function protecting material of continuous casting crystallizer for large square low-carbon steel | |
| CN102764879B (en) | High-aluminum steel die casting protective slag | |
| CN104858382B (en) | A kind of tundish covering flux and its application | |
| CN104057051B (en) | A kind of production method of small square billet continuous casting bearing steel | |
| CN105642847A (en) | Casting powder for continuous casting of low-carbon steel and application of casting powder | |
| CN102744380B (en) | Boron-steel-containing mold flux dedicated for continuous casting | |
| CN111590039A (en) | Continuous casting covering slag for low-carbon high-aluminum steel and preparation method thereof | |
| CN110918913A (en) | Covering slag for continuous casting high-carbon steel small square billet crystallizer | |
| CN110918915A (en) | Crystallizer casting powder | |
| JPH10258343A (en) | Hollow granular mold flux for continuous casting | |
| CN114178498A (en) | Special covering slag for non-quenched and tempered steel continuous casting crystallizer and preparation process thereof | |
| CN112756570B (en) | Continuous casting start-up slag for casting peritectic steel | |
| CN104874755A (en) | Tundish covering agent used for chrome-bearing steel and application thereof | |
| CN109550913B (en) | Low-reactivity covering slag for aluminum-containing ultra-low carbon steel | |
| CN114082909A (en) | Continuous casting mold flux for low-alloy high-strength beam steel | |
| CN111778453A (en) | Method for reducing Q195-BG steel continuous casting bonding breakout | |
| CN107297475A (en) | A kind of high alumina steel continuous casting crystallizer Mold Powder Without Fluorine | |
| CN111347021A (en) | Special continuous casting crystallizer function protection material for ESP high-carbon steel | |
| CN110976798A (en) | Continuous casting crystallizer covering slag for medium-high carbon steel | |
| CN114029462B (en) | Rare earth oxide-containing continuous casting mold flux for high-titanium low-aluminum steel and preparation method thereof | |
| CN110548841A (en) | Low-sodium low-lithium continuous casting crystallizer casting powder for low-carbon steel | |
| CN109550912B (en) | Low-reactivity covering slag for aluminum-containing medium carbon steel | |
| CN107282903A (en) | A kind of continuous super low carbon steel casting crystallizer protecting residue | |
| KR100749021B1 (en) | Mold fiux for continuous casting | |
| CN114472824B (en) | Continuous casting crystallizer casting powder for titanium-containing steel and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220225 |