CN108754342A - A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions - Google Patents
A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions Download PDFInfo
- Publication number
- CN108754342A CN108754342A CN201810663362.7A CN201810663362A CN108754342A CN 108754342 A CN108754342 A CN 108754342A CN 201810663362 A CN201810663362 A CN 201810663362A CN 108754342 A CN108754342 A CN 108754342A
- Authority
- CN
- China
- Prior art keywords
- hyperoxia
- steel
- inexpensive
- csp
- glassed 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
Abstract
The invention belongs to technical field of metal material manufacture, and in particular to a kind of inexpensive hyperoxia glassed steel of CSP technique productions, chemical constituent and weight percentage are：C≤0.01%, Mn：0.10~1.00%, O≤0.0500%, Si≤0.01%, P≤0.020%, S≤0.030%, Als≤0.01%, remaining is Fe and inevitable impurity, and the manufacturing method of the steel uses CSP short routes, includes following production stage successively：Blast furnace ironmaking → molten iron pretreatment → converter smelting → RH application of vacuum → sheet blank continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.By using high-oxygen steel, lower C, Mn content molten steel cost is reduced without adding the alloying elements such as expensive Nb, Ti, V；Using CSP continuous casting and rolling technique of sheet bar, this method production process is short, unit operation speed is fast, production efficiency is high；The yield strength for producing obtained steel plate is respectively less than 280MPa, and tensile strength is between 250~390MPa, and elongation percentage is more than 30%, hydrogen permeability test Q-t curves, TH values >=10min/mm2。
Description
Technical field
The invention belongs to technical field of metal material manufacture, and in particular to a kind of inexpensive hyperoxia of CSP technique productions is warded off
The inexpensive hyperoxia enamel of porcelain steel and its manufacturing method, more particularly to hyperoxia smelting technique and continuous casting and rolling control technology batch production
The manufacturing method of steel.
Background technology
Enamelware application surface constantly expands at present, is wanted to the scaling resistance of glassed steel, adherence and pin hole control quality
Ask further stringent, especially the quick-fried ability of anti-squama of glassed steel, general steel plate can no longer meet current requirement.The quick-fried problem of squama is
It is generated when Tu is warded off, it is not enough trap to be stored in the hydrogen produced during enamel firing to generate the quick-fried reason of squama.In steel
Hydrogen trap include crystal boundary, dislocation, microvoid, field trash and second phase particles etc..Second phase particles are that transmission electron microscope is seen
The metallic compound observed.
More to be related to high-oxygen steel in existing glassed steel technology, on the one hand elevated oxygen level is conducive to decarburization, another party
Face oxygen forms a large amount of oxide in steel and is mingled with, these are mingled with the scaling resistance and adherence that substance is conducive to improve steel plate.
Such as patent CN101535517A discloses the enamel sheet and its manufacturing method that fishscale resistance can be significantly excellent, weight hundred
Divide than being C：0.003~0.010%, Mn：0.03~1.30%, Si：0.001~0.100%, P≤0.035%, S≤
0.08%, Als：0.0002~0.010%, Nb：0.055~0.250%, O：0.005~0.0085%, N≤0.0055%, B：
0.0003~0.0030%, V：0.003~0.15%, Ni：0.0001~0.05%, Ti：0.0001~0.05%, also have Ta,
W, one or more of La, Ce, Ca, Mg and one or more of A, Se, Sn, Sb.This patent is added with this patent comparative alloy
Excessively, in addition bigger is lost in hyperoxia alloy smelting, relative cost can be much higher.
As the development of modern industrial technology reduces manufacturing cost, enamel product steel is with hot rolling to improve product quality
A kind of trend is had become instead of cold rolling.Short route is used as application publication number CN 103589953A and CN 103540845A are mentioned
The method of CSP technique productions hot rolling glassed steels, but still belong to the first using CSP technique productions hyperoxia glassed steels.
Invention content
In order to overcome the deficiencies of existing technologies, life is stablized using CSP abbreviated systems it is an object of the present invention to provide a kind of
Produce the Steel for enamel and its production method of elevated oxygen level.
To achieve the above object, the invention discloses a kind of inexpensive hyperoxia glassed steel of CSP technique productions, component and
Weight percentage is：C≤0.01%, Mn：0.10~1.00%, O≤0.0500%, Si≤0.01%, P≤0.020%, S
≤ 0.030%, Als≤0.01%, remaining is Fe and inevitable impurity.
Specifically, the component and weight percentage of the inexpensive hyperoxia glassed steel of the CSP technique productions are：C：
0.001~0.009%, Mn：0.30~0.51%, O≤0.0500%, Si≤0.009%, P≤0.015%, S≤0.024%,
Als≤0.01%, remaining is Fe and inevitable impurity.
A kind of manufacturing method of the inexpensive hyperoxia glassed steel of above-mentioned CSP technique productions is wrapped successively using CSP short routes
Include following production stage：Blast furnace ironmaking → molten iron pretreatment → converter smelting → RH application of vacuum → sheet blank continuous casting → soaking pit
→ de-scaling → finish rolling → section cooling → is batched.
Specifically, the RH application of vacuum terminates to determine oxygen, oxygen content is controlled by O≤0.0500%.
Specifically, the sheet blank continuous casting is cast using whole process protection, long nozzle is protected using asbestos bowl when big packet is replaced
Shield casting, middle water containing opening are passed through argon gas protective casting；Tundish uses to be wrapped in dry materials, Covering Agent In Basic Mould, crystallizer
Covering slag uses Ultra-low carbon；It takes stable casting speed and optimizes the measure of mouth of a river immersion depth.
Specifically, the soaking pit charging temperature control is at 800~950 DEG C, time inside furnace is more than 15min, same after coming out of the stove
The plate temperature difference is less than 20 DEG C, and tapping temperature is controlled at 1180 ± 20 DEG C.
Specifically, the finishing temperature control of the finish rolling is at 880 ± 20 DEG C, oiler temperature control is at 620 ± 20 DEG C.
The reasons why present component range is set：
C≤0.01% of the present invention, C is good solution strengthening element, but unfavorable to the formability of steel plate, while C members
When cellulose content is higher, CO bubbles are will produce in the Tu process of warding off, cause enamel needle pore defect, damage enamel surfaces quality, therefore will
Carbon content control can ensure that steel plate Tu wards off quality below 0.010%, and be conducive to the punch process of steel plate.
The Mn contents of the present invention are selected in 0.10~1.00%, Mn as solution strengthening element, while can be formed with O, S
Trap of MnO, MnS field trash as hydrogen storage, improves the fish scaling resistance of steel plate.Mn constituent contents are too low, and it is suitable to reach
Yield strength；At 0.10% or more, steel plate plasticity significantly reduces Mn constituent contents when too high levels, and being unfavorable for processing makes
With, while deflection is excessive when can lead to steel plate enamel firing, therefore Mn contents are not to be exceeded 1.00%.
Si≤0.01% of the present invention, Si elements can produce oxidation film in advance during enamel firing, hinder steel plate and porcelain
The production of adhesive layer between glaze, too high levels can influence enamel adhesion property, therefore select the control of Si contents below 0.01%.
P≤0.020% of the present invention, P element not adversely affects enamel property, but too high levels can reduce the weldering of steel
Connect performance.
S≤0.030% of the present invention, S is harmful element in conventional steel plates, but suitable S is combined with Mn and to be formed MnS and press from both sides
Miscellaneous, as the trap of hydrogen storage, generation squama is quick-fried after inhibiting steel plate enamel firing.
Als≤0.01% of the present invention, Al is strong deoxidier, and Als is deoxidation products, is played to Control for Oxygen Content heavy to closing
It acts on, therefore controls its content below 0.01%.
On the one hand O≤0.0500% of the present invention, elevated oxygen level are conducive to decarburization, another aspect oxygen is formed largely in steel
Oxide be mingled with, these be mingled with substance be conducive to improve steel plate scaling resistance and adherence.
The reasons why production method process parameter control of the present invention：
Glassed steel of the present invention is continuous casting and rolling technique of sheet bar：It in continuous casting casting process, is cast using whole process protection, greatly
Long nozzle uses asbestos bowl protective casting, middle water containing opening to be passed through argon gas protective casting when packet is replaced.Tundish uses dry materials
Middle packet, Covering Agent In Basic Mould, crystallizer protecting residue avoid carburetting from happening using Ultra-low carbon covering slag.By stablizing throwing
The continuous casting process measure such as speed and optimization mouth of a river immersion depth, effectively controls liquid fluctuating and slows down high-oxygen steel to immersion water
The mouth erosion condition of resistance to material, to improve casting sequence and slab quality.Soaking pit charging temperature is controlled at 800~950 DEG C, in stove
Time is more than 15min, is less than 20 DEG C with the plate temperature difference after coming out of the stove, tapping temperature is controlled at 1180 ± 20 DEG C.It comes into operation before open rolling online
Furnace roller liquidation procedures adjusts furnace atmosphere with specific reference to iron scale situation.High-pressure water descaler de-scaling, using high heating temperature
It can ensure the abundant austenitizing of steel billet, achieve the purpose that even tissue, while compound can fully dissolve in steel, cooling procedure
Middle precipitation can play the role of crystal grain thinning.Finishing temperature control at 880 ± 20 DEG C, oiler temperature control at 620 ± 20 DEG C,
Certifiable precipitated phase is fully precipitated, and is conducive to crystal grain thinning.
The beneficial effects of the invention are as follows：
1) glassed steel composition design of the present invention uses high-oxygen steel, using lower C, Mn content, the Nb expensive without addition,
The alloying elements such as Ti, V reduce molten steel cost.
2) present invention uses CSP continuous casting and rolling technique of sheet bar, and this method production process is short, unit operation speed is fast, raw
Produce it is efficient, be it is a kind of it is efficient production glassed steel method.
3) glassed steel metallographic structure produced by the invention is：Recrystallize ferrite+pearlite+a small amount of deformed microstructure, production
In the yield strength of the steel plate be respectively less than 280MPa, tensile strength is between 250~390MPa, and elongation percentage is more than 30%, and hydrogen oozes
Experiment Q-t curves thoroughly, TH values >=10min/mm2。
Specific implementation mode
The present invention is described in detail below：
Table 1 is the chemical composition of various embodiments of the present invention；
Table 2 is various embodiments of the present invention end properties testing result；
Various embodiments of the present invention glassed steel production use CSP short routes for：Blast furnace ironmaking → molten iron pretreatment → converter smelting
Refining → RH processing → wave sheet billet continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.
Various embodiments of the present invention glassed steel chemical ingredients by weight percent is：C≤0.01%, Mn0.10~1.00%, Si
≤ 0.01%, P≤0.020%, S≤0.030%, Als≤0.01%, vacuum terminate to determine oxygen, oxygen content by O≤0.0500% into
Row control.Surplus is Fe and other inevitable impurity, and specific each embodiment chemical composition is shown in Table 1.
It is as follows：Molten iron KR stirring desulphurizations control [S]≤0.030%, then carry out that converter top bottom is compound blows
Refining, alloying, using RH application of vacuum, vacuum terminates to determine oxygen, and oxygen content is controlled by O≤0.0500%.Make in steel
Chemical composition meets the requirement of table 1, and surplus is Fe and is inevitably mingled with.The molten steel that table 1 requires will be met and use sheet billet
Conticaster pours into 70mm thickness continuous slab bands, and sheet billet is cut into further according to cut lengths is required.Then slab passes through soaking
Stove soaking, entering furnace plate base must be straight, it is steady to ensure that slab enters stove, soaking pit charging temperature is controlled at 800~950 DEG C, in stove
Time is more than 15min, is less than 20 DEG C with the plate temperature difference after coming out of the stove, tapping temperature is controlled at 1180 ± 20 DEG C.It comes into operation before open rolling online
Furnace roller liquidation procedures adjusts furnace atmosphere with specific reference to iron scale situation.High-pressure water descaler de-scaling.Then directly at 7
Carry out controlled rolling on rack hot tandem, finishing temperature control at 880 ± 20 DEG C, oiler temperature control at 620 ± 20 DEG C,
The steel band of rolling coils into coils of hot-rolled steel after laminar flow is quickly cooled down or is cut into steel plate.
It using continuous casting and rolling technique of sheet bar, in continuous casting casting process, is cast using whole process protection, big packet replaces duration
The mouth of a river uses asbestos bowl protective casting, middle water containing opening to be passed through argon gas protective casting.Tundish uses to be wrapped in dry materials, in alkalinity
Covering agent, crystallizer protecting residue use Ultra-low carbon.By stablizing the continuous casting process such as casting speed and optimization mouth of a river immersion depth
Measure.Soaking pit time inside furnace is more than 15min, is less than 20 DEG C with the plate temperature difference after coming out of the stove.Come into operation online furnace roller cleaning journey before open rolling
Sequence adjusts furnace atmosphere with specific reference to iron scale situation.High-pressure water descaler de-scaling, using high heating temperature.
Embodiment 1：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1195 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.0mm thin plates, 895 DEG C of finishing temperature, 635 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the hyperoxia glassed steel of example 1.
Embodiment 2：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1190 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 885 DEG C of finishing temperature, 630 DEG C of coiling temperature using 7 frame tandem mill finish rolling.Reality is made
Apply the hyperoxia glassed steel of example 2.
Embodiment 3：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1185 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.5mm thin plates, 885 DEG C of finishing temperature, 625 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the hyperoxia glassed steel of example 3.
Embodiment 4：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1180 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.8mm thin plates, 875 DEG C of finishing temperature, 615 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the hyperoxia glassed steel of example 4.
Embodiment 5：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1170 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 2.0mm thin plates, 865 DEG C of finishing temperature, 610 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the hyperoxia glassed steel of example 5.
Embodiment 6：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1160 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 2.2mm thin plates, 865 DEG C of finishing temperature, 610 DEG C of coiling temperature using 7 frame tandem mill finishing.Reality is made
Apply the hyperoxia glassed steel of example 6.
Comparative example 1：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1195 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.0mm thin plates, 895 DEG C of finishing temperature, 635 DEG C of coiling temperature using 7 frame tandem mill finishing.It is made pair
The hyperoxia glassed steel of ratio 1.
Comparative example 2：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1190 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.2mm thin plates, 885 DEG C of finishing temperature, 630 DEG C of coiling temperature using 7 frame tandem mill finish rolling.It is made pair
The hyperoxia glassed steel of ratio 2.
Comparative example 3：Corresponding embodiment chemical composition is shown in Table 2 by weight percentage, and surplus is Fe and other are inevitable
Impurity；The strand that thickness is 70mm is sent into roller hearth soaking furnace, 1185 DEG C of tapping temperature is vertical by high-pressure water descaler
Milling train roughing is rolled to 1.5mm thin plates, 885 DEG C of finishing temperature, 625 DEG C of coiling temperature using 7 frame tandem mill finishing.It is made pair
The hyperoxia glassed steel of ratio 3.
Hyperoxia glassed steel made of Examples 1 to 6 and comparative example 1~3 is detected through row, obtains hyperoxia enameled steel products
Energy data, are shown in Table 2.
From the point of view of the performance that table 2 reflects, the hyperoxia glassed steel in Examples 1 to 6 is warded off with the hyperoxia in comparative example 1~3
Porcelain steel is little in yield strength, tensile strength Rm >=300MPa and elongation percentage difference, but its hydrogen permeability test TH value is all higher than
12.8min/mm2, i.e., the hyperoxia glassed steel that produces through the invention has good fish scaling resistance and mechanical performance, meets mesh
Performance requirement of the preceding major part industrial requirement to glassed steel.
The chemical composition (w%) of hyperoxia glassed steel in 1 Examples 1 to 6 of table and comparative example 1~3
| C | Si | Mn | P | S | Als | O | |
| Embodiment 1 | 0.009 | 0.004 | 0.30 | 0.015 | 0.018 | 0.0083 | 0.0091 |
| Embodiment 2 | 0.007 | 0.006 | 0.49 | 0.011 | 0.024 | 0.0062 | 0.0194 |
| Embodiment 3 | 0.005 | 0.005 | 0.51 | 0.015 | 0.014 | 0.0091 | 0.0297 |
| Embodiment 4 | 0.005 | 0.007 | 0.38 | 0.014 | 0.016 | 0.0069 | 0.0358 |
| Embodiment 5 | 0.002 | 0.009 | 0.48 | 0.012 | 0.024 | 0.0077 | 0.0405 |
| Embodiment 6 | 0.001 | 0.008 | 0.40 | 0.015 | 0.015 | 0.0074 | 0.0446 |
| Comparative example 1 | 0.009 | 0.006 | 0.28 | 0.015 | 0.018 | 0.0180 | - |
| Comparative example 2 | 0.007 | 0.005 | 0.47 | 0.011 | 0.024 | 0.0164 | - |
| Comparative example 3 | 0.005 | 0.005 | 0.53 | 0.015 | 0.014 | 0.0193 | - |
Hyperoxia glassed steel end properties testing result in 2 Examples 1 to 6 comparative example 1~3 of table
The scientific research personnel of technical field can according to the above-mentioned change for making content and form unsubstantiality without departing from
Institute's essential scope of the present invention, therefore, the present invention is not limited to above-mentioned specific embodiment.
Claims (7)
1. a kind of inexpensive hyperoxia glassed steel of CSP technique productions, it is characterised in that：Its component and weight percentage are：C≤
0.01%, Mn：0.10~1.00%, O≤0.0500%, Si≤0.01%, P≤0.020%, S≤0.030%, Als≤
0.01%, remaining is Fe and inevitable impurity.
2. the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 1, it is characterised in that：Its component and again
Measuring percentage composition is：C：0.001~0.009%, Mn：0.30~0.51%, O≤0.0500%, Si≤0.009%, P≤
0.015%, S≤0.024%, Als≤0.01%, remaining is Fe and inevitable impurity.
3. the manufacturing method of the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 1, it is characterised in that：
The method uses CSP short routes, includes following production stage successively：Blast furnace ironmaking → molten iron pretreatment → converter smelting → RH
Vacuum processing → sheet blank continuous casting → soaking pit → de-scaling → finish rolling → section cooling → is batched.
4. the manufacturing method of the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 3, it is characterised in that：
The RH application of vacuum terminates to determine oxygen, and oxygen content is controlled by O≤0.0500%.
5. the manufacturing method of the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 3, it is characterised in that：
The sheet blank continuous casting is cast using whole process protection, and long nozzle uses asbestos bowl protective casting, tundish water when big packet is replaced
Mouth is passed through argon gas protective casting；Tundish uses to be wrapped in dry materials, and Covering Agent In Basic Mould, crystallizer protecting residue is using ultralow
Carbon；It takes stable casting speed and optimizes the measure of mouth of a river immersion depth.
6. the manufacturing method of the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 3, it is characterised in that：
At 800~950 DEG C, time inside furnace is more than 15min, is less than 20 DEG C with the plate temperature difference after coming out of the stove for the soaking pit charging temperature control,
Tapping temperature is controlled at 1180 ± 20 DEG C.
7. the manufacturing method of the inexpensive hyperoxia glassed steel of CSP technique productions according to claim 3, it is characterised in that：
The finish rolling finishing temperature control is at 880 ± 20 DEG C, and oiler temperature control is at 620 ± 20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663362.7A CN108754342A (en) | 2018-06-25 | 2018-06-25 | A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663362.7A CN108754342A (en) | 2018-06-25 | 2018-06-25 | A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108754342A true CN108754342A (en) | 2018-11-06 |
Family
ID=63977085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810663362.7A Pending CN108754342A (en) | 2018-06-25 | 2018-06-25 | A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108754342A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284070A (en) * | 2019-07-30 | 2019-09-27 | 马鞍山钢铁股份有限公司 | A kind of 260MPa rank hot rolling acid-cleaning glassed steel and its production method |
| CN112011733A (en) * | 2020-07-31 | 2020-12-01 | 马鞍山钢铁股份有限公司 | Economical cold-rolled enameled steel plate based on CSP process and production method thereof |
| CN113584406A (en) * | 2021-07-14 | 2021-11-02 | 武汉钢铁有限公司 | Steel for fireproof door plate produced by CSP process and manufacturing method thereof |
| CN113584383A (en) * | 2021-07-14 | 2021-11-02 | 武汉钢铁有限公司 | Short-process low-cost steel for door plate and manufacturing method thereof |
| CN113930678A (en) * | 2021-09-26 | 2022-01-14 | 包头钢铁（集团）有限责任公司 | Method for producing ultra-low carbon IF steel based on single RH vacuum treatment and CSP thin slab continuous casting and rolling process |
| CN114990435A (en) * | 2022-05-20 | 2022-09-02 | 武汉钢铁有限公司 | Low-cost high-strength welded pipe steel produced by CSP process and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153367A (en) * | 2006-09-28 | 2008-04-02 | 上海梅山钢铁股份有限公司 | Fine crystal strengthen carbon constructional steel and manufacture process for hot-rolling thin slab thereof |
| CN103484757A (en) * | 2013-10-17 | 2014-01-01 | 武汉钢铁(集团)公司 | Enamel steel with scaling resistance and manufacturing method thereof |
| CN103589953A (en) * | 2013-11-07 | 2014-02-19 | 武汉钢铁(集团)公司 | Hot rolled thin plate enamel steel with 245-MPa yield strength and manufacturing method thereof |
| CN104087828A (en) * | 2014-07-16 | 2014-10-08 | 武汉钢铁(集团)公司 | Full-ferrite enamel steel for heat exchanger and production method thereof |
| CN104962810A (en) * | 2015-07-08 | 2015-10-07 | 武汉钢铁(集团)公司 | Sheet enamel steel for subway decoration and production method thereof |
-
2018
- 2018-06-25 CN CN201810663362.7A patent/CN108754342A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153367A (en) * | 2006-09-28 | 2008-04-02 | 上海梅山钢铁股份有限公司 | Fine crystal strengthen carbon constructional steel and manufacture process for hot-rolling thin slab thereof |
| CN103484757A (en) * | 2013-10-17 | 2014-01-01 | 武汉钢铁(集团)公司 | Enamel steel with scaling resistance and manufacturing method thereof |
| CN103589953A (en) * | 2013-11-07 | 2014-02-19 | 武汉钢铁(集团)公司 | Hot rolled thin plate enamel steel with 245-MPa yield strength and manufacturing method thereof |
| CN104087828A (en) * | 2014-07-16 | 2014-10-08 | 武汉钢铁(集团)公司 | Full-ferrite enamel steel for heat exchanger and production method thereof |
| CN104962810A (en) * | 2015-07-08 | 2015-10-07 | 武汉钢铁(集团)公司 | Sheet enamel steel for subway decoration and production method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284070A (en) * | 2019-07-30 | 2019-09-27 | 马鞍山钢铁股份有限公司 | A kind of 260MPa rank hot rolling acid-cleaning glassed steel and its production method |
| CN112011733A (en) * | 2020-07-31 | 2020-12-01 | 马鞍山钢铁股份有限公司 | Economical cold-rolled enameled steel plate based on CSP process and production method thereof |
| CN113584406A (en) * | 2021-07-14 | 2021-11-02 | 武汉钢铁有限公司 | Steel for fireproof door plate produced by CSP process and manufacturing method thereof |
| CN113584383A (en) * | 2021-07-14 | 2021-11-02 | 武汉钢铁有限公司 | Short-process low-cost steel for door plate and manufacturing method thereof |
| CN113930678A (en) * | 2021-09-26 | 2022-01-14 | 包头钢铁（集团）有限责任公司 | Method for producing ultra-low carbon IF steel based on single RH vacuum treatment and CSP thin slab continuous casting and rolling process |
| CN114990435A (en) * | 2022-05-20 | 2022-09-02 | 武汉钢铁有限公司 | Low-cost high-strength welded pipe steel produced by CSP process and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108754342A (en) | A kind of inexpensive hyperoxia glassed steel and its manufacturing method of CSP technique productions | |
| CN107974612B (en) | High-strength and high-toughness steel plate for SSCC (single strand ceramic) resistant spherical tank and manufacturing method thereof | |
| CN103540845A (en) | Hot-rolled thin plate enamelled steel with yield strength of 330 MPa and manufacturing method thereof | |
| CN103924163A (en) | Austenite stainless steel and production method thereof | |
| CN108220748A (en) | The manufacturing method of household electrical appliances cold rolling low-carbon glassed steel | |
| CN108546887A (en) | A kind of hot-dip aluminizing silicon steel plate and its production method with excellent processing forming | |
| JP6990337B1 (en) | Ni-based alloy with excellent surface properties and its manufacturing method | |
| CN106048389A (en) | Production method of non-oriented electrical steel 50W800 by traditional hot continuous rolling process | |
| CN114672605B (en) | Corrosion-resistant steel bar mechanical connection sleeve, wire rod and production method of wire rod | |
| CN113308647B (en) | Cold-rolled steel plate for enamel and manufacturing method thereof | |
| CA3100847C (en) | Non-oriented electrical steel sheet and method of producing same | |
| CN110273106B (en) | 260 MPa-grade cold-rolled continuous-annealing enamel steel and production method thereof | |
| JP4525813B2 (en) | Hot-dip galvanized steel sheet and manufacturing method thereof | |
| CN113584398B (en) | Corrosion-resistant steel sheet and method for producing corrosion-resistant steel sheet | |
| JP4998365B2 (en) | Ultra-low carbon steel sheet and manufacturing method thereof | |
| CN114657467A (en) | Production method of weather-resistant steel plate with yield strength of 415MPa | |
| CN108220799A (en) | Household electrical appliances cold rolling low-carbon glassed steel | |
| JP4586648B2 (en) | Steel plate excellent in workability and method for producing the same | |
| CN108396235A (en) | A kind of enamel matrix hot rolling steel plate and its manufacturing method | |
| JP3757633B2 (en) | Steel plate for cans with excellent workability | |
| JP2004204252A (en) | Ti-CONTAINING HIGH-WORKABILITY FERRITIC CHROMIUM STEEL SHEET SUPERIOR IN RIDGING RESISTANCE, AND MANUFACTURING METHOD THEREFOR | |
| JP7158618B1 (en) | Austenitic Fe-Ni-Cr alloy with excellent oxidation resistance and method for producing the same | |
| JP3554283B2 (en) | Fe-Ni alloy excellent in surface properties and method for producing the same | |
| KR101169510B1 (en) | Cold-rolled steel sheet, galvannealed steel sheet and processes for production of both | |
| JP5087965B2 (en) | Extremely low carbon ferritic stainless steel and method for producing the same |
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: 20181106 |
|
| RJ01 | Rejection of invention patent application after publication |