CN105618507A - Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure - Google Patents
Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure Download PDFInfo
- Publication number
- CN105618507A CN105618507A CN201510994037.5A CN201510994037A CN105618507A CN 105618507 A CN105618507 A CN 105618507A CN 201510994037 A CN201510994037 A CN 201510994037A CN 105618507 A CN105618507 A CN 105618507A
- Authority
- CN
- China
- Prior art keywords
- hot
- iron scale
- rolled sheet
- flaking
- iron oxide
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses an anti-stripping iron oxide scale structure on the surface of a hot rolled plate, and a control process for the anti-stripping iron oxide scale structure, and belongs to the technical field of steel rolling. The control process is characterized in that a dual-discharge descaling process is adopted, wherein high-pressure water descaling process is controlled to be higher than or equal to 16 MPa; a high-temperature quick rolling mode is adopted; a front-stage sparse cooling mode is adopted after finish rolling; a rolling temperature is controlled to be lower than 650 DEG C; and finally, the thickness of the iron oxide scale structure on the surface of the hot rolled plate with a thickness of 4-14mm is controlled to be smaller than or equal to 10.8 microns, the proportion of Fe3O4 in the iron oxide scale structure is controlled to be 45%-68%, the proportion of FeO is controlled to be 23%-42%, and the proportion of Fe2O3 is controlled to be 8%-15%.
Description
Technical field
The present invention relates to hot-rolled sheet surface resistance to flaking scale structure and Controlling Technology thereof, it provides the effectively control method of control hot continuous-milling steel plate top layer iron scale thickness and structure. Belong to latten rolling technical field.
Background technology
Along with the development of automobile industry, mechanical processing industry etc., it is also more and more higher to the requirement of ferrous materials. While ensureing good comprehensive mechanical performance, require that hot-rolled steel sheet also to be had excellent surface quality, this is because iron and steel downstream manufacturing enterprise considers the needs of production cost and manufacturing procedure, the surface treatments such as pickling are not carried out before to hot-rolled steel sheet cold working, but after cold working, carry out corresponding surface quality process, therefore in cold working process, the hot-rolled sheet scale on surface degree of coming off will have influence on the processing quality of steel plate, and simultaneously serious iron scale peels off and can damage the relevant equipment and instrument of cold-forming.
The iron sheet causing rolling up plate surface quality and existing differentiation is come off degree by the iron sheet structure that cold-formed front hot-rolled coil is different and thickness of scale. Serious iron sheet comes off and " grey black " can be caused to drop in automated production equipment and instrument, especially in the test set of responsive type and instrument, causes inspection by mistake and misjudgement, finally affects carrying out smoothly of automatic production. Such as commercial car high-strength beam steel used is when rolling-line is produced, and owing to the level of automation of rolling-line equipment is higher, serious iron sheet comes off and just can cause equipment " greasy dead " in process of production.
In addition, serious iron sheet comes off and " iron ash " can be caused to assemble with in Sheet Metal Processing transport process, is formed " ash block ", and owing to the hardness of iron scale is higher, the effect of being stressed can cause surface of steel plate to produce " pit " or " pit ". The problems referred to above can not be tolerated by wheel enterprise, because this not only can affect wheel toasts the outward appearance after painting, also has influence on the fatigue lifetime of wheel.
The friction that serious iron scale comes off and can increase between mould and plate, and then cause the damage of mould, reduce die life, it is to increase production cost. In addition, the iron scale powder coming off serious pollutes the environment, and the health of human body of site work personnel is caused detrimentally affect.
Summary of the invention
It is an object of the invention to provide a kind of resistance to flaking scale structure and Controlling Technology thereof, solving terminal user automatic production line, punching press unit are first-class carries out iron scale in the cold-forming processes such as hot-rolled steel sheet impact briquetting or roll-forming and is easy to the problem peeled off.
The present invention, by control hot-rolled sheet surface quality, obtains hot-rolled sheet thickness of scale on surface and the structure of requirement of the present invention especially by technology controlling and process, thus reaches and reduce surface of steel plate iron scale and come off degree, meets user's service requirements.
Hot-rolled sheet surface resistance to flaking scale structure is by Fe3O4, FeO and Fe2O3Form, and Fe in scale structure3O4Weight content control to control at 23% ~ 42%, Fe at the weight content of 45% ~ 68%, FeO2O3Weight content control 8% ~ 15%, hot-rolled sheet thickness of scale on surface is 5.2 ~ 11.8um.
Resistance to flaking scale structure Controlling Technology comprises following Controlling Technology:
Smelting molten steel also connects and casts slab, its chemical composition is according to weight percent Si0.02 ~ 0.2wt%, C��0.14wt%, < 0.010wt%, Nb��0.06wt%, Ti is 0.01��0.12wt%, Mo��0.35wt%, Cr��0.60wt%, Alt is 0.02��0.06wt%, and surplus is Fe for Mn��2.0wt%, P��0.02wt%, S.
Slab heating temperature controls at 1150��1240 DEG C, and heat-up time is 2.8��4.5 hours; De-scaling system pressure controls at more than 16MPa, adopts double descaling process; RT2 temperature controls between 940-1080 DEG C, and finishing temperature control is at 860-920 DEG C, and oiler temperature control is at 570-650 DEG C.
The present invention adopts the composition of low Si to design, and reduces in heating steel billet process and forms Fe between ferric oxide cortex and matrix2SiO4Amount, adopt double multi-pass high-pressure water descaling at rough rolling step, thoroughly remove top layer iron scale, avoid belt steel surface red scale defect.
The technique thinking that the present invention adopts high temperature to roll soon, moderate temperature is batched. The thinking that finish rolling stage employing high temperature rolls soon, obtains thin and complete iron scale after finish rolling; Section cooling section adopts the cold pattern of layer of the front sparse cooling of section, and one group 4 is arranged in a row pipe water opening ways is that interval formula is opened, it is possible to for+, but can not be equal to+The interval formula opening ways of mode, ensures the homogeneity of entire volume iron scale control. Take high temperature roll soon can ensure finish rolling with moderate coiling temperature after band steel top layer iron scale avoid FeO to Fe3O4Eutectoid reaction district, reduces the conversion completely of FeO, compares general technology, can obtain thinner thickness, Fe3O4Accounting is relatively low, the surperficial iron sheet quality that FeO accounting is relatively high, is conducive to reducing hot rolling cold formed steel scale on surface scaling amount. The unlatching quantity of interstand cooling water ensures one of condition of rolling soon, its objective is controlled oxidization thickness of scale, interstand cooling water opens that quantity is more to be possible to prevent or reduce iron scale in finish rolling region and the quick generation in region between finish rolling and section cooling section.
Scanning electron microscope (SEM) and X-ray diffraction (XRD) is adopted to detect scale structure, wherein iron scale cross section shape looks and iron scale thickness adopt SEM back scattering to carry out observing and detecting, and iron scale phase structure adopts X-ray diffraction to detect.
Accompanying drawing explanation
Accompanying drawing 1 is hot-rolled sheet surface resistance to flaking iron scale Thickness sensitivity result.
Embodiment
Exemplifying embodiment 1
Smelting molten steel also connects and casts slab, and its chemical composition is according to weight percent Si0.14wt%, and C0.09wt%, Mn1.55wt%, P0.015wt%, S0.006wt%, Nb0.055wt%, Ti are 0.015wt%, Alt is 0.032wt%, and surplus is Fe. Slab thickness 230mm, by heating of plate blank 1238 DEG C, heat-up time is 3.5 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out after de-scaling, roughing temperature out 1043 DEG C, workpiece thickness 32mm, finishing temperature 872 DEG C, during finish rolling, Final Stand Rolling speed is 7.8m/s, entering section cooling platform after finish rolling, section cooling pattern is front section of sparse formula cooling, and namely arranging in a row pipe water opening ways for one group 4 is+Interval formula opens cooling control mode, and coiling temperature is 644 DEG C, hot-rolled coil thickness 4.0mm, hot-rolled coil width 1350mm, beating bundle placement sky after batching and be chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 7.8 microns, and hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 38%, Fe3O4Weight content is 49%, Fe2O3Weight content is 13%.
Exemplifying embodiment 2
Smelting molten steel also connects and casts slab, and its chemical composition is according to weight percent Si0.12wt%, and C0.09wt%, Mn1.35wt%, P0.011wt%, S0.003wt%, Nb0.045wt%, Ti are 0.025wt%, Alt is 0.042wt%, and surplus is Fe. slab thickness 230mm, by heating of plate blank 1215 DEG C, heat-up time is 3.8 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out after de-scaling, roughing temperature out 1020 DEG C, workpiece thickness 38mm, finishing temperature 896 DEG C, in finishing stands, interstand cooling water unlatching group number is 4, during finish rolling, Final Stand Rolling speed is 6.2m/s, coiling temperature is 624 DEG C, hot-rolled coil thickness 7.8mm, hot-rolled coil width 1550mm, beat bundle placement sky after batching and it is chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 8.3 microns, hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 31%, Fe3O4Weight content is 58%, Fe2O3Weight content is 11%.
Exemplifying embodiment 3
Smelting molten steel also connects and casts slab, its chemical composition is according to weight percent Si0.07wt%, C0.07wt%, Mn1.75wt%, P0.012wt%, S0.002wt%, Nb0.045wt%, Ti are 0.10wt%, Mo0.25wt%, Cr0.30wt%, Alt is 0.032wt%, and surplus is Fe. Slab thickness 230mm, by heating of plate blank 1235 DEG C, heat-up time is 4.2 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out, roughing temperature out 1034 DEG C, workpiece thickness 38mm after de-scaling, finishing temperature 907 DEG C, in finishing stands, interstand cooling water unlatching group number is 4, and during finish rolling, Final Stand Rolling speed is 5.4m/s, enters section cooling platform after finish rolling, section cooling pattern is front section of sparse formula cooling, and namely arranging in a row pipe water opening ways for one group 4 is+Interval formula opens cooling control mode, and coiling temperature is 612 DEG C, hot-rolled coil thickness 8.0mm, hot-rolled coil width 1150mm, beating bundle placement sky after batching and be chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 8.8 microns, and hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 32%, Fe3O4Weight content is 58%, Fe2O3Weight content is 10%.
Exemplifying embodiment 4
Smelting molten steel also connects and casts slab, and its chemical composition is according to weight percent Si0.10wt%, and C0.11wt%, Mn1.1wt%, P0.011wt%, S0.005wt%, Ti are 0.015wt%, Alt is 0.036wt%, and surplus is Fe. Slab thickness 230mm, by heating of plate blank 1182 DEG C, heat-up time is 3.8 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out, roughing temperature out 997 DEG C, workpiece thickness 38mm after de-scaling, finishing temperature 872 DEG C, in finishing stands, interstand cooling water unlatching group number is 4, and during finish rolling, Final Stand Rolling speed is 7.2m/s, enters section cooling platform after finish rolling, section cooling pattern is front section of sparse formula cooling, and namely arranging in a row pipe water opening ways for one group 4 is+Interval formula opens cooling control mode, and coiling temperature is 628 DEG C, hot-rolled coil thickness 7.8mm, hot-rolled coil width 1550mm, beating bundle placement sky after batching and be chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 7.8 microns, and hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 40%, Fe3O4Weight content is 52%, Fe2O3Weight content is 8%.
Exemplifying embodiment 5
Smelting molten steel also connects and casts slab, and its chemical composition is according to weight percent Si0.08wt%, and C0.10wt%, Mn1.0wt%, P0.011wt%, S0.0040wt%, Ti are 0.015wt%, Alt is 0.033wt%, and surplus is Fe. Slab thickness 230mm, by heating of plate blank 1176 DEG C, heat-up time is 3.8 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out, roughing temperature out 982 DEG C, workpiece thickness 46mm after de-scaling, finishing temperature 881 DEG C, in finishing stands, interstand cooling water unlatching group number is 5, and during finish rolling, Final Stand Rolling speed is 4.8m/s, enters section cooling platform after finish rolling, section cooling pattern is front section of sparse formula cooling, and namely arranging in a row pipe water opening ways for one group 4 is+Interval formula opens cooling control mode, and coiling temperature is 584 DEG C, hot-rolled coil thickness 11.8mm, hot-rolled coil width 1450mm, beating bundle placement sky after batching and be chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 10.4 microns, and hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 31%, Fe3O4Weight content is 58%, Fe2O3Weight content is 11%.
Exemplifying embodiment 6
Smelting molten steel also connects and casts slab, and its chemical composition is 0.033wt% according to weight percent Si0.12wt%, C0.09wt%, Mn1.0wt%, P0.011wt%, S0.0040wt%, Alt, and surplus is Fe. Slab thickness 230mm, by heating of plate blank 1166 DEG C, heat-up time is 4.4 hours, then come out of the stove and carry out high-pressure water descaling, adopt double de-scaling, de-scaling water pressure 18MPa, roughing is carried out, roughing temperature out 982 DEG C, workpiece thickness 46mm after de-scaling, finishing temperature 881 DEG C, in finishing stands, interstand cooling water unlatching group number is 5, and during finish rolling, Final Stand Rolling speed is 4.0m/s, enters section cooling platform after finish rolling, section cooling pattern is front section of sparse formula cooling, and namely arranging in a row pipe water opening ways for one group 4 is+Interval formula opens cooling control mode, and coiling temperature is 575 DEG C, hot-rolled coil thickness 14.0mm, hot-rolled coil width 1350mm, beating bundle placement sky after batching and be chilled to room temperature, finally obtaining hot-rolled coil scale on surface mean thickness is 10.8 microns, and hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and in iron scale main composition, FeO weight content is 27%, Fe3O4Weight content is 64%, Fe2O3Weight content is 9%.
Claims (6)
1. a hot-rolled sheet surface resistance to flaking iron scale, it is characterised in that, hot-rolled sheet iron scale is primarily of Fe3O4, FeO and Fe2O3Forming, all the other are Fe, and Fe in iron scale main composition3O4Weight content control to control at 23% ~ 42%, Fe at the weight content of 45% ~ 68%, FeO2O3Weight content control 8% ~ 15%.
2. a kind of hot-rolled sheet surface as claimed in claim 1 resistance to flaking iron scale, it is characterised in that, hot-rolled sheet thickness of scale on surface is 5.2 ~ 11.8um.
3. a kind of hot-rolled sheet surface as claimed in claim 1 resistance to flaking iron scale Controlling Technology, it is characterised in that, described Controlling Technology comprises the steps:
(1) smelting molten steel and connect and cast slab, its chemical composition is according to weight percent Si0.02 ~ 0.2wt%, C��0.14wt%, < 0.010wt%, Nb��0.06wt%, Ti is 0.01��0.12wt%, Mo��0.35wt%, Cr��0.60wt%, Alt is 0.02��0.06wt%, and surplus is Fe for Mn��2.0wt%, P��0.02wt%, S;
(2) slab heating temperature 1150��1240 DEG C, heat-up time is 2.8��4.5 hours; Then with high-pressure water descaling, de-scaling system pressure controls at more than 16MPa, adopts double descaling process;
(3) slab after de-scaling being carried out roughing, roughing temperature out controls between 940-1080 DEG C, then carries out finish rolling, and finishing temperature control is at 860-920 DEG C, and finish rolling time Mo frame throws steel speed >=3.8m/s;
(4) carrying out section cooling after finish rolling, oiler temperature control is at 570-650 DEG C.
4. a kind of hot-rolled sheet surface as claimed in claim 3 resistance to flaking iron scale Controlling Technology, it is characterised in that, in finishing stands, interstand cooling water unlatching group number is not less than 4.
5. a kind of hot-rolled sheet surface as claimed in claim 3 resistance to flaking iron scale Controlling Technology, it is characterised in that, section cooling pattern is front section of cooling mode, and cools the interval formula open mode that control mode is 4 row one group of collection Guan Shui.
6. a kind of hot-rolled sheet surface as claimed in claim 3 resistance to flaking iron scale Controlling Technology, it is characterised in that, producing hot-rolled steel sheet thickness is 4 ~ 14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994037.5A CN105618507A (en) | 2015-12-25 | 2015-12-25 | Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994037.5A CN105618507A (en) | 2015-12-25 | 2015-12-25 | Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105618507A true CN105618507A (en) | 2016-06-01 |
Family
ID=56034070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994037.5A Pending CN105618507A (en) | 2015-12-25 | 2015-12-25 | Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105618507A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262357A (en) * | 2018-01-03 | 2018-07-10 | 北京科技大学 | One kind prevents hot rolling from exempting from pickling beam steel iron scale powdery exfoliation method |
| CN108291282A (en) * | 2016-04-20 | 2018-07-17 | 新日铁住金株式会社 | Hot rolled steel plate, steel and container |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177142A (en) * | 1997-09-08 | 1999-03-23 | Kawasaki Steel Corp | Production of hot rolled stainless steel plate |
| CN101012528A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Surface iron scale control method for middle sheet billet continuous casting and rolling steel plate |
| CN101856669A (en) * | 2010-06-02 | 2010-10-13 | 东北大学 | Control method of softness of oxide scales on surface of hot-rolling strip steel |
| CN102367546A (en) * | 2011-10-28 | 2012-03-07 | 首钢总公司 | Control method for coast atmospheric corrosion resistant scale on surface of boat deck |
| CN103394529A (en) * | 2013-07-31 | 2013-11-20 | 秦皇岛首秦金属材料有限公司 | Secondary descaling method for improving surface quality of ship boards |
-
2015
- 2015-12-25 CN CN201510994037.5A patent/CN105618507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177142A (en) * | 1997-09-08 | 1999-03-23 | Kawasaki Steel Corp | Production of hot rolled stainless steel plate |
| CN101012528A (en) * | 2007-01-25 | 2007-08-08 | 鞍钢股份有限公司 | Surface iron scale control method for middle sheet billet continuous casting and rolling steel plate |
| CN101856669A (en) * | 2010-06-02 | 2010-10-13 | 东北大学 | Control method of softness of oxide scales on surface of hot-rolling strip steel |
| CN102367546A (en) * | 2011-10-28 | 2012-03-07 | 首钢总公司 | Control method for coast atmospheric corrosion resistant scale on surface of boat deck |
| CN103394529A (en) * | 2013-07-31 | 2013-11-20 | 秦皇岛首秦金属材料有限公司 | Secondary descaling method for improving surface quality of ship boards |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291282A (en) * | 2016-04-20 | 2018-07-17 | 新日铁住金株式会社 | Hot rolled steel plate, steel and container |
| CN108291282B (en) * | 2016-04-20 | 2020-03-03 | 日本制铁株式会社 | Hot-rolled steel sheet, steel material, and container |
| CN108262357A (en) * | 2018-01-03 | 2018-07-10 | 北京科技大学 | One kind prevents hot rolling from exempting from pickling beam steel iron scale powdery exfoliation method |
| CN108262357B (en) * | 2018-01-03 | 2019-11-08 | 北京科技大学 | One kind prevents hot rolling from exempting from pickling beam steel iron scale powdery exfoliation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101906577B (en) | Non-oriented electrical steel produced by sheet continuous casting and rolling and method thereof | |
| CN101994066B (en) | Deformation induced maraging stainless steel and machining process thereof | |
| CN103526130B (en) | Processing method for direct cold rolling of two-phase stainless steel as-cast state billet steel after solid solution treatment | |
| CN110438414A (en) | A method of eliminating ultra-wide ferritic stainless steel surface crack of plate | |
| CN109500130B (en) | Manufacturing method of seamless steel tube with diameter of 920mm for long-tube trailer gas cylinder | |
| CN109023105B (en) | Hot-rolled strip steel for automobile structure and manufacturing method thereof | |
| CN111085542B (en) | Method for improving pitting defects on surface of cold-rolled 316L stainless steel | |
| CN110225988A (en) | Ferrite-group stainless steel hot rolled steel plate and its manufacturing method | |
| CN102251174A (en) | Enamel steel and preparation method of cold rolled sheet thereof | |
| CN108315671A (en) | 1000MPa grades of low yield strength ratio super-high strength steels of yield strength and preparation method thereof | |
| CN114086074B (en) | High-corrosion-resistance cold forging steel for ocean island reef and production method and heat treatment method thereof | |
| CN111020365A (en) | Weather-resistant steel, steel plate manufacturing method thereof and angle steel manufacturing method | |
| CN106475432A (en) | A kind of high-carbon steel wire rod being suitable to fine steel wire drawing and iron scale control method | |
| CN111321341A (en) | 1500 MPa-grade non-coating hot forming steel with low high-temperature friction coefficient and preparation method thereof | |
| CN110643909A (en) | Oxidation-resistant ultrahigh-strength steel plate for hot stamping forming and low-temperature hot forming process thereof | |
| CN102199734B (en) | High-strength 301L stainless steel used for bus, and manufacture method thereof | |
| CN110205559A (en) | A kind of tensile strength >=510MPa grades of the axle housing steel and production method of excellent surface quality | |
| CN102251250B (en) | Rolling method for pickling line thermal annealing of low-chromium 400 series stainless steel | |
| CN108149156A (en) | A kind of big specification high uniformity abrasion-resistant stee and its manufacturing method | |
| CN108060365B (en) | High-chromium cast steel roller for rolling hot-rolled plate strip | |
| CN105618507A (en) | Anti-stripping iron oxide scale structure on surface of hot rolled plate and control process for anti-stripping iron oxide scale structure | |
| CN104593698A (en) | Method for manufacturing high-strength cold-rolled weather resisting steel plates and high-strength cold-rolled weather resisting steel plates | |
| CN107868919A (en) | A kind of resistance to hydrochloric acid and sulfuric acid corrosion steel and preparation method thereof | |
| CN110157979B (en) | Rolling method for improving surface quality of steel plate | |
| CN105088101B (en) | A kind of enamel heat transfer element steel and its manufacture method with corrosion resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |