CN108393353A - production method of L P steel plate - Google Patents
production method of L P steel plate Download PDFInfo
- Publication number
- CN108393353A CN108393353A CN201710068859.XA CN201710068859A CN108393353A CN 108393353 A CN108393353 A CN 108393353A CN 201710068859 A CN201710068859 A CN 201710068859A CN 108393353 A CN108393353 A CN 108393353A
- Authority
- CN
- China
- Prior art keywords
- molten steel
- steel
- steel plates
- rolling
- cast
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 129
- 239000010959 steel Substances 0.000 title claims abstract description 129
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 42
- 239000000126 substance Substances 0.000 claims abstract description 31
- 238000009749 continuous casting Methods 0.000 claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 239000011819 refractory material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 19
- 239000012535 impurity Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B22D11/007—Continuous casting of metals, i.e. casting in indefinite lengths of composite ingots, i.e. two or more molten metals of different compositions being used to integrally cast the ingots
-
- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
the invention relates to a method for producing a L P steel plate, which comprises the steps of 1) adopting molten steel with different chemical components to cast a continuous casting blank according to the requirements of the longitudinal section shape and the structural strength of a L P steel plate, 2) adopting 2 molten steel tanks to cast, simultaneously smelting the 2 molten steel tanks, enabling the delivery temperature to be consistent with the casting temperature, 3) respectively connecting the 2 molten steel tanks with a molten steel mixer through casting water gaps, dynamically adjusting the molten steel flow of the 2 casting water gaps according to requirements, 4) injecting the molten steel uniformly mixed in the molten steel mixer into a crystallizer for casting to obtain a continuous casting blank with chemical components uniformly changed from a head crystallizer to a tail crystallizer, and 5) rolling L P steel plate on a rolling mill with a function of dynamically adjusting roll gaps.
Description
Technical field
The present invention relates to technical field of metal material preparation more particularly to a kind of uniform LP steel of longitudinal mechanical performance
The production method of plate.
Background technology
LP (longitudinal variable-thickness) steel plate refers to steel plate with special longitudinal shape of the thickness along rolling direction consecutive variations,
It is to change the steel plate of longitudinal thickness by continuously changing the opening degree of roll during the rolling process.Due to longitudinal thickness-variable steel plate
Its thickness can be changed according to load bearing situation, thus the design of the structure sections such as bridge, hull, building can be optimized, no
Can only reduce rolled steel dosage, reduce welding times, and can by the uniform thicknessization of junction improve operability, such as omit backing plate and
Taper WEDM etc..
The continuous casting billet of rolling LP steel plates is using conventional continuous casting billet at present, and when rolling passes through hydraulic system dynamic and adjusts
Rolling mill screw down, the steel plate to roll out the steel plate of longitudinal variable-thickness, but after rolling are different thick because plate thickness differs greatly
The plate property for spending section is also different, therefore can not ensure whole performance, cannot meet actual operation requirements or can not reach
It is that structure design personnel are undesirable to optimal use state.
Application No. is the Chinese patent of CN200910175208.6, a kind of " thickness for rolling wedge-shaped steel plate is disclosed
Control method ", the operation of rolling are that preceding several passages are rolled according to conventional rectangular steel plate rolling technology, and extreme trace is controlled by TDC
Device controls the variation of rolling mill hydraulic cylinder oil column height, continuous to change roll gap distance, realizes the consecutive variations of steel plate longitudinal thickness, due to
This method is time to roll out lateral wedge-shaped steel plate in the extreme trace of rolling, that is, only complete wedge-shaped steel plate by a time rolling
Rolling, necessarily causes its thickness change range smaller, the poor problem of steel plate template.
Application No. is the Chinese patent of CN201310227028.4, a kind of " transverse wedge-shaped rolled thickness-variable steel plate is disclosed
Production method ", including cross rolling：In transverse rolling stage end passes, set according to steel plate head and tail portion average thickness
Definite value carries out longitudinal variable cross-section rolling to steel plate；Longitudinal rolling；First, it in the axial rolling stage, is generated end to end according to the transverse rolling stage
Longitudinal variable-thickness value carries out lateral equal proportion wedge rolling；Then, it is determined using influence function method according to rolling procedure distribution
Roll gap adjustment amount and bending roller force setting value ensure that the transverse gage distribution of axial rolling passage meets the requirement of equal proportion wedge shape.Due to this
Method is to roll out lateral wedge-shaped steel plate in the extreme trace time setting roll gap parameter of cross rolling, necessarily leads to its thickness change range
Smaller, steel plate template is poor and correction can not be carried out on straightener causes useless plate rate to increase.
Application No. is the Chinese patent of CN200610046457.1, a kind of " continuous rolling side of variable-thickness steel plate is disclosed
Method ", first steel plate respectively reserve certain allowance end to end, and to shut out minimum thickness, rolled piece precomputation is calculated according to rolling force model
Plastic curve determines the roll gap of roll then in conjunction with mill spring curve, is then rolled under the roll gap；It is rolled on head
It calculates in the process and shuts out length, until shutting out length is equal to L；After the completion of the transition stage rolling of head, continues Varying-thickness and roll
System；According to the variation of variable thickness rolled length, roll gap is adjusted correspondingly；The rolling process persistently carries out, until thickeing
Degree section shuts out length and is equal to L, and the thickness of rolled piece has transferred to maximum gauge at this time, carries out tail portion rolling later, based on estimated
Deviation existing for plastic curve and practical plastic curve is calculated, in the operation of rolling of tail portion, according to the practical difference for calculating exit thickness
Not, by adjusting the position of roll gap, tail portion thickness deviation is eliminated, until tail portion rolling is completed.Use the method for the present invention can be with
Conveniently technique continuous rolling variable-thickness steel plate.This method is rolled using segmented, can be caused in actually producing in batches
Low production efficiency controls the disadvantage for stablizing difference.
By being analyzed above it is found that spy's thickness LP Plate Productions have the following deficiencies at present：
1) with thickness change performance respective change also occurs for LP steel plates, is unfavorable for structure design；
2) using the wedge shape of last passes LP steel plates, control accuracy is poor；
3) production technology is complicated, low production efficiency, and control stability is poor.
Invention content
The present invention provides a kind of production method of LP steel plates, the LP steel plates produced have longitudinal mechanical performance uniform one
The characteristic of cause is conducive to structure design and integral strength stability；The method that direct hot rolling can be used in LP steel plates is produced, letter
LP Plate Production techniques are changed.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of production method of LP steel plates, the thick end of the LP steel plates and thin end yield strength difference≤30MPa；It is produced
Method includes the following steps：
1) according to the longitudinal section shape and Structural strength calls of LP steel plates, thin, the thick position of corresponding LP steel plates is adopted respectively
With the pouring molten steel continuous casting billet with different chemical composition；
2) 2 ladles are used to pour into a mould, correspondence meets LP steel plates after rolling to the chemical composition of molten steel respectively in 2 ladles
The intensity requirement at thick end and thin end；2 tank molten steel are smelted simultaneously, and it is consistent with pouring temperature to move out temperature；
3) 2 tank molten steel connect mixing of molten steel device by sprue gate respectively, 2 sprue gates of dynamic adjustment as needed
Molten steel flow, specially：When starting cast, first by one corresponding sprue gate of ladle, one standard-sized sheet, 1~3s is poured into a mould by ladle
Two corresponding sprue gates two are opened to minimum aperture；In casting process, the aperture of sprue gate one is by being gradually reduced greatly, until pouring
Note terminates preceding 1~3s and closes；The aperture of sprue gate two is by small gradual increase, until cast terminates preceding 1~3s standard-sized sheets；Casting process
Middle guarantee molten steel total flow meets cast and requires；
4) it casts, is obtained from head to tail portion in the molten steel injection crystallizer in mixing of molten steel device after evenly mixing
The continuous casting material of chemical composition even variation；
5) LP steel plates are rolled on the milling train with dynamic adjustment roll gap function.
The sprue gate is slide gate nozzle.
The mixing of molten steel device is tubular mixer, and inner wall sets refractory material layer and inwardly protruded helical form rifling, spiral shell
Rotation shape rifling is structure as a whole with inner wall, is formed by refractory material laying.
Compared with prior art, the beneficial effects of the invention are as follows：
1) the LP steel plates produced have the uniform characteristic of longitudinal mechanical performance, are conducive to structure design and entirety is strong
Spend stability；
2) method that direct hot rolling can be used in LP steel plates is produced, and simplifies LP Plate Production techniques.
Description of the drawings
Fig. 1 be LP steel plates of the present invention production method in continuous casting billet pour into a mould principle schematic.
In figure：1. 2. sprue gate of ladle, 3. mixing of molten steel device, 4. crystallizer
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
A kind of production method of LP steel plates of the present invention, the thick end of the LP steel plates and thin end yield strength difference≤
30MPa；Its production method includes the following steps：
1) according to the longitudinal section shape and Structural strength calls of LP steel plates, thin, the thick position of corresponding LP steel plates is adopted respectively
With the pouring molten steel continuous casting billet with different chemical composition；
2) 2 ladles 1 are used to pour into a mould, correspondence meets LP steel after rolling to the chemical composition of molten steel respectively in 2 ladles 1
The intensity requirement at plate thickness end and thin end；2 tank molten steel are smelted simultaneously, and it is consistent with pouring temperature to move out temperature；
3) 2 tank molten steel connect mixing of molten steel device 3 by sprue gate 2 respectively, and dynamic adjusts 2 sprue gates as needed
2 molten steel flow, specially：When starting cast, first by one corresponding sprue gate of ladle, one standard-sized sheet, 1~3s is poured into a mould by steel
Two corresponding sprue gate two of water pot is opened to minimum aperture；In casting process, the aperture of sprue gate one by being gradually reduced greatly,
Terminate preceding 1~3s to cast to close；The aperture of sprue gate two is by small gradual increase, until cast terminates preceding 1~3s standard-sized sheets；Cast
Ensure that molten steel total flow meets cast and requires in the process；
4) it casts, is obtained from head to tail in the molten steel injection crystallizer 4 in mixing of molten steel device 3 after evenly mixing
The continuous casting material of portion's chemical composition even variation；
5) LP steel plates are rolled on the milling train with dynamic adjustment roll gap function.
The sprue gate 2 is slide gate nozzle.
The mixing of molten steel device 3 is tubular mixer, and inner wall sets refractory material layer and inwardly protruded helical form rifling, spiral shell
Rotation shape rifling is structure as a whole with inner wall, is formed by refractory material laying.
Following embodiment is being implemented down based on the technical solution of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
It is conventional method not mentionlet alone bright.
【Embodiment 1】
The present embodiment produces wedge shape LP steel plates, and the continuous casting billet for rolling LP steel plates is poured into a mould using 2 ladles,
In：
The chemical composition of molten steel in ladle 1：C0.06%, Si0.35%, Mn0.15%, remaining is for Fe and unavoidably
Impurity；
The chemical composition of molten steel in ladle 2：C0.14%, Si0.25%, Mn0.13%, V0.06%, remaining for Fe and
Inevitable impurity；
2 tank molten steel connect mixing of molten steel device by sprue gate respectively, and dynamic adjusts the molten steel flow of 2 sprue gates,
It casts, obtains equal from head to tail portion chemical composition in molten steel injection crystallizer in mixing of molten steel device after evenly mixing
The continuous casting billet of even variation；
It is longitudinal in the difference inspection by sampling of its head, middle part and tail portion, continuous casting billet head sample point chemical composition along continuous casting billet
Identical as ladle chemistry in ladle 1, tail portion sample point chemical composition is identical as ladle chemistry in ladle 2, in
Portion's sample point chemical composition is：C0.1%, Si0.30%, Mn0.14%, V0.03%, remaining is Fe and inevitable impurity.
The rolling wedge-shaped LP steel plates on the milling train with dynamic adjustment roll gap function, thin end thickness 40mm, thick end thickness
80mm, long 15m, the yield strength of wedge-shaped LP steel plates along longitudinal direction are 358~377Mpa.
【Embodiment 2】
The present embodiment produces wedge shape LP steel plates, and the continuous casting billet for rolling LP steel plates is poured into a mould using 2 ladles,
In：
The chemical composition of molten steel in ladle 1：C0.04%, Si0.35%, Mn0.14%, remaining is for Fe and unavoidably
Impurity；
The chemical composition of molten steel in ladle 2：C0.16%, Si0.35%, Mn0.12%, V0.06%, remaining for Fe and
Inevitable impurity；
2 tank molten steel connect mixing of molten steel device by sprue gate respectively, and dynamic adjusts the molten steel flow of 2 sprue gates,
It casts, obtains equal from head to tail portion chemical composition in molten steel injection crystallizer in mixing of molten steel device after evenly mixing
The continuous casting billet of even variation；
It is longitudinal in the difference inspection by sampling of its head, middle part and tail portion, continuous casting billet head sample point chemical composition along continuous casting billet
Identical as ladle chemistry in ladle 1, tail portion sample point chemical composition is identical as ladle chemistry in ladle 2, in
Portion's sample point chemical composition is：The chemical composition of middle part sample point is：C0.1%, Si0.35%, Mn0.13%, V0.03%,
Remaining is Fe and inevitable impurity.
The rolling wedge-shaped LP steel plates on the milling train with dynamic adjustment roll gap function, thin end thickness 20mm, thick end thickness
60mm, long 22m, the yield strength of wedge-shaped LP steel plates along longitudinal direction are 375~382Mpa.
【Embodiment 3】
The present embodiment produces wedge shape LP steel plates, and the continuous casting billet for rolling LP steel plates is poured into a mould using 2 ladles,
In：
The chemical composition of molten steel in ladle 1：C0.12%, Si0.25%, Mn0.15%, remaining is for Fe and unavoidably
Impurity；
The chemical composition of molten steel in ladle 2：C0.14%, Si0.25%, Mn0.13%, Nb0.04%, V0.06%,
Remaining is Fe and inevitable impurity；
2 tank molten steel connect mixing of molten steel device by sprue gate respectively, and dynamic adjusts the molten steel flow of 2 sprue gates,
It casts, obtains equal from head to tail portion chemical composition in molten steel injection crystallizer in mixing of molten steel device after evenly mixing
The continuous casting billet of even variation；
It is longitudinal in the difference inspection by sampling of its head, middle part and tail portion, continuous casting billet head sample point chemical composition along continuous casting billet
Identical as ladle chemistry in ladle 1, tail portion sample point chemical composition is identical as ladle chemistry in ladle 2, in
Portion's sample point chemical composition is：The chemical composition of middle part sample point is：C0.13%, Si0.25%, Mn0.14%, Nb0.02%,
V0.03%, remaining is Fe and inevitable impurity.
The rolling wedge-shaped LP steel plates on the milling train with dynamic adjustment roll gap function, thin end thickness 80mm, thick end thickness
1100mm, long 110m, the yield strength of wedge-shaped LP steel plates along longitudinal direction are 352~368Mpa.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of production method of LP steel plates, which is characterized in that the thick end of the LP steel plates and thin end yield strength difference≤
30MPa；Its production method includes the following steps：
1) according to the longitudinal section shape and Structural strength calls of LP steel plates, tool is respectively adopted in thin, the thick position of corresponding LP steel plates
There is the pouring molten steel continuous casting billet of different chemical composition；
2) 2 ladles are used to pour into a mould, correspondence meets LP steel plate thickness end after rolling to the chemical composition of molten steel respectively in 2 ladles
With the intensity requirement at thin end；2 tank molten steel are smelted simultaneously, and it is consistent with pouring temperature to move out temperature；
3) 2 tank molten steel connect mixing of molten steel device by sprue gate respectively, and dynamic adjusts the molten steel of 2 sprue gates as needed
Flow, specially：When starting cast, first by one corresponding sprue gate of ladle, one standard-sized sheet, 1~3s of cast is right by ladle two
The sprue gate two answered is opened to minimum aperture；In casting process, the aperture of sprue gate one is by being gradually reduced greatly, until cast knot
1~3s is closed before beam；The aperture of sprue gate two is by small gradual increase, until cast terminates preceding 1~3s standard-sized sheets；It is protected in casting process
Card molten steel total flow meets cast and requires；
4) it casts, obtains chemical from head to tail portion in the molten steel injection crystallizer in mixing of molten steel device after evenly mixing
The continuous casting material of ingredient even variation；
5) LP steel plates are rolled on the milling train with dynamic adjustment roll gap function.
2. a kind of production method of LP steel plates according to claim 1, which is characterized in that the sprue gate is sliding water
Mouthful.
3. a kind of production method of LP steel plates according to claim 1, which is characterized in that the mixing of molten steel device is tubulose
Mixer, inner wall set refractory material layer and inwardly protruded helical form rifling, and helical form rifling is structure as a whole with inner wall, by resistance to
Fiery material builds by laying bricks or stones to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068859.XA CN108393353B (en) | 2017-02-08 | 2017-02-08 | Production method of LP steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068859.XA CN108393353B (en) | 2017-02-08 | 2017-02-08 | Production method of LP steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108393353A true CN108393353A (en) | 2018-08-14 |
| CN108393353B CN108393353B (en) | 2019-08-06 |
Family
ID=63093936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710068859.XA Active CN108393353B (en) | 2017-02-08 | 2017-02-08 | Production method of LP steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108393353B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787177A (en) * | 2021-08-30 | 2021-12-14 | 安徽天沃重工机械有限公司 | Casting method of large-cylinder-diameter marine low-speed diesel engine bearing seat steel casting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5568156A (en) * | 1978-11-14 | 1980-05-22 | Sumitomo Metal Ind Ltd | Production of slab for clad steel plate in continuous casting method |
| DE4108203A1 (en) * | 1991-03-14 | 1991-09-26 | Ge Yu | Prodn. of castings using two or more melts of different compsn. - has melt streams passing separately through prim. cooling chill moulds then into single chill mould |
| CN101780532A (en) * | 2009-12-30 | 2010-07-21 | 中国第一重型机械股份公司 | Continuous casting method of liquid-phase composite slab |
| CN101817023A (en) * | 2009-11-25 | 2010-09-01 | 河北钢铁股份有限公司 | Thickness control method for rolling wedge-shaped steel plate |
| CN103302094A (en) * | 2013-06-08 | 2013-09-18 | 东北大学 | Production method of transverse wedge-shaped rolled thickness-variable steel plate |
| CN104438324A (en) * | 2014-11-08 | 2015-03-25 | 广东省工业技术研究院(广州有色金属研究院) | Short-process roll forming device and method of bimetal composite board |
| CN204565106U (en) * | 2015-03-27 | 2015-08-19 | 辽宁科技大学 | A kind of Y type mouth of a river of uniform temperature |
-
2017
- 2017-02-08 CN CN201710068859.XA patent/CN108393353B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5568156A (en) * | 1978-11-14 | 1980-05-22 | Sumitomo Metal Ind Ltd | Production of slab for clad steel plate in continuous casting method |
| DE4108203A1 (en) * | 1991-03-14 | 1991-09-26 | Ge Yu | Prodn. of castings using two or more melts of different compsn. - has melt streams passing separately through prim. cooling chill moulds then into single chill mould |
| CN101817023A (en) * | 2009-11-25 | 2010-09-01 | 河北钢铁股份有限公司 | Thickness control method for rolling wedge-shaped steel plate |
| CN101780532A (en) * | 2009-12-30 | 2010-07-21 | 中国第一重型机械股份公司 | Continuous casting method of liquid-phase composite slab |
| CN103302094A (en) * | 2013-06-08 | 2013-09-18 | 东北大学 | Production method of transverse wedge-shaped rolled thickness-variable steel plate |
| CN104438324A (en) * | 2014-11-08 | 2015-03-25 | 广东省工业技术研究院(广州有色金属研究院) | Short-process roll forming device and method of bimetal composite board |
| CN204565106U (en) * | 2015-03-27 | 2015-08-19 | 辽宁科技大学 | A kind of Y type mouth of a river of uniform temperature |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787177A (en) * | 2021-08-30 | 2021-12-14 | 安徽天沃重工机械有限公司 | Casting method of large-cylinder-diameter marine low-speed diesel engine bearing seat steel casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108393353B (en) | 2019-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105108096B (en) | A kind of Properties of Heavy Rail Steel bloom continuous casting dynamic soft-reduction method for determination of amount | |
| CN103071774B (en) | Method for controlling surface temperature of casting blank at straightening point of continuous casting machine | |
| CN104399923B (en) | A kind of method producing special heavy plate continuous casting billet | |
| CN109261922B (en) | Casting blank production process of solidification tail end large-reduction continuous casting machine | |
| CN104148387B (en) | The hot core milling method of a kind of continuous casting | |
| CN108705052A (en) | The continuous casting producing method of bloom pinion steel strand | |
| EP3750649A1 (en) | Method for controlling structure of solidified cast ingot in continuous casting process and control device thereof | |
| CN108393353B (en) | Production method of LP steel plate | |
| CN107442756B (en) | The method for improving slab slighter compress efficiency | |
| CN201008961Y (en) | Casting device of support roll of more than 100 tons complex material supper-scale cast steel | |
| CN112743053A (en) | Crystallizer for solving peritectic steel continuous casting slab surface cracks and control method | |
| CN104646642A (en) | Method for controlling width size of non-oriented silicon steel continuous casting slab blank | |
| CN103846401B (en) | Secondary cooling process for improving surface quality of extra-thick slab | |
| CN114653907B (en) | Method for improving homogeneity of high-carbon steel billet casting blank based on brand new depressing mode | |
| CN108396241B (en) | 420 MPa-grade LP steel plate and production method thereof | |
| CN106363146B (en) | A kind of method that online hot high speed adjusts crystallizer width | |
| CN108705051A (en) | 20CrMnTiH pinion steel bloom continuous casting production methods | |
| CA2446222C (en) | Method and device for the continuous casting of blooms, slabs or thin slabs | |
| CN109093087A (en) | A kind of slab corner heating means | |
| CN109092893A (en) | 60 meters of overlength Plate Production techniques | |
| CN206519552U (en) | Molten steel mixed pouring device | |
| CN204209084U (en) | A kind of continuous casting system producing the oval base of large gauge | |
| CN106493328A (en) | A kind of 400 is stainless continuous cast method | |
| CN108396252A (en) | 390 MPa-grade L P steel plate and production method thereof | |
| CN108396222B (en) | 235 MPa-level LP steel plate and production method 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |