CN108543809A - A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys - Google Patents
A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys Download PDFInfo
- Publication number
- CN108543809A CN108543809A CN201810259743.9A CN201810259743A CN108543809A CN 108543809 A CN108543809 A CN 108543809A CN 201810259743 A CN201810259743 A CN 201810259743A CN 108543809 A CN108543809 A CN 108543809A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- production method
- rolling
- low
- thick low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
- B21B47/02—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal for folding sheets before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
- B21B47/04—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal for separating layers after rolling
-
- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of production method of the general carbons steel plate of 3~8mm thick low-alloys, the production method includes base, rolling, separation process；The preforming, for the thickness of steel plate in 12~32mm, speed of welding is 80~120mm/s, 36~60KJ/cm of weld heat input3.The method of the present invention produces general carbons, low-alloy thin plate, and width maximum can arrive 3200mm, lumber recovery is high, it is at low cost, be not necessarily to milling equipment transformation.The present invention uses composite means sheeting technique, it can be needed size is adjusted flexibly according to order and meet the needs of client, be suitable for multi items, ultra-wide specification the market demand, by rolling, obtain that surface, template be good, the excellent steel plate of inherent quality, bridge, building, wind-powered electricity generation and other manufacturings are can be widely applied to, there is good application prospect.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of producer of the general carbons steel plate of 3~8mm thick low-alloys
Method.
Background technology
It is constantly improved with the development and Wide and Thick Slab yield of economic globalization, the requirement to Wide and Thick Slab quality is more and more tighter
Lattice.Thin Specs Wide and Thick Slab, since the features such as pad in use is few, light-weight under same intensity is widely used.But
Thin Specs Wide and Thick Slab requires technology control accuracy higher in process of production, steel-fastening, whipping, camber, shape wave easily occurs
Phenomena such as.To improve the dimensional accuracy and strip shape quality of Thin Specs Wide and Thick Slab, each manufacturing enterprise puts into a large amount of human and material resources pair
Production equipment and rolling model are studied.
National 3000mm or more wide and heavy plate mills mainly produce thickness 8mm or more specification steel plates, and Thin Specs 6~12mm steel plates are logical
It often produces on hot tandem and is used after kaiping processing.General 3~8mm thickness steel plates using the cold rolling mode of production compared with
Needs that are more but can not ensureing big width, and performance can not also ensure.For the deck of boat, bridge plate and specific use boiler
Container panel etc., weld require to be tablet because roll bending is difficult to be guaranteed opening flat back plate shape, and roll bending narrower width causes
Welding capacity is big, of high cost.And easily occur when the thin wide specification product of wide and heavy plate mill rolling shape wave, camber, scrape pull, roll it is useless etc.
Problem, waster rate is high, and production is unstable, it is difficult to form mass production capabilities.
The production for being mainly used for stainless steel clad plate before ply rolling rolling mill practice uses vacuum welding using the technical thought
Mode is connect, production thin plate becomes possible to.Ply rolling rolling mill practice mainly in such a way that thickness multiple length produces, increases the rolling of steel plate
Thickness（Production steel plate thickness of such as ordering goods is 3mm, then multiple length is used to produce steel plate thickness as 12mm）, steel plate is by cutting after production
It cuts, the mode of cold leveling finally obtains production board.
Ply rolling rolling mill practice, at present can only be in the general carbons steel plate of low-alloy since the welding technique of vacuum welding base influences
On produced, high alloy steel plate due to welding technique without maturation, temporarily it is under test.
The present invention use composite means sheeting technique, by rolling, can batches of production 3~8mm sheet metals, steel
Plate width can reach 3200mm, and acquisition surface, template is good, inherent quality is excellent, can be widely applied to bridge, building, wind
Electric and other manufacturings have good application prospect, and do not need special input, transformation for milling train.
Invention content
The technical problem to be solved in the present invention is to provide a kind of production methods of the general carbons steel plate of 3~8mm thick low-alloys.
In order to solve the above technical problems, the technical solution used in the present invention is：The general carbons of one kind 3~8mm thick low-alloys
The production method of steel plate, the production method include base, rolling, separation process；The preforming, the thickness of steel plate is 12
~32mm, speed of welding are 80~120mm/s, 36~60KJ/cm of weld heat input3。
Preforming of the present invention, using the same steel plate of 4 block sizes, symmetrically to be stacked in one piece progress base, every piece
Surface of steel plate, which is polished to polish and apply, spreads interleaving agent, uses the compound base of vacuum welding.
The group of preforming of the present invention, interleaving agent becomes：Iron chloride 6~10%, magnesium chloride 15~25%, remaining ingredient
For water.
Preforming of the present invention, the abutment joint between steel plate are 0.5~1mm, and surface roughness is 1~3 μm.
The steel grade of preforming of the present invention, steel plate is low-alloy steel, straight carbon steel or low-alloy high-strength steel.
Rolling process of the present invention, steel plate uses hot rolling technology, roll reduction≤10mm after base.
After steel plate rolling, 4 pieces of finished steel plates are separated by cutting for separation process of the present invention.
The finished steel plate maximum width 3200mm of production method production of the present invention.
Finished steel plate result of detection of the present invention closes I grades of standards of GB/T2970-2004, finished steel plate performance detection of the present invention
Method standard corresponds to standard with reference to its corresponding trade mark.
It is using advantageous effect caused by above-mentioned technical proposal：1, it is thin to produce general carbons, low-alloy for the method for the present invention
Plate, width maximum can arrive 3200mm, lumber recovery is high, it is at low cost, it is not necessary that milling equipment is transformed.2, billet size of the invention can
According to order needs be adjusted flexibly, be suitable for multi items, ultra-wide specification the market demand, optimize product structure, enterprise made to protect
Hold benign sustainable development.3, the present invention uses composite means sheeting technique, and by rolling, acquisition surface, template are good, interior
In superior in quality steel plate, finished steel plate result of detection closes I grades of standards of GB/T2970-2004, can be widely applied to bridge, building,
Wind-powered electricity generation and other manufacturings have good application prospect.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
Plate Production specification：Thick 3mm, the ply rolling plate thickness 12mm after rolling.
The production method of the general carbons steel plate of the present embodiment low-alloy includes base, rolling, separation process, specific process step
As described below：
(1) preforming：Put the S355J2 sheet packs of 4 pieces of 12mm thickness into row base, the abutment joint 0.5mm of steel plate, steel billet table
3 μm of surface roughness；Every piece of surface of steel plate, which is polished to polish and apply, spreads interleaving agent, and the group of interleaving agent becomes：6% iron chloride,
15% magnesium chloride, remaining ingredient are water；Use the compound base of vacuum welding, speed of welding 80mm/s, weld heat input 36KJ/
cm3；
（2）Rolling process：Hot rolling technology is used when rolling, roll reduction 9mm, it is 12mm, width that thickness is obtained after rolling
The S355J2 steel plates of 3000mm；
（3）Separation process：It is detached by cutting after steel plate rolling, obtains the production board of 4 pieces of thickness 3mm.
The performance of S355J2 finished steel plates obtained by the present embodiment：Steel plate inspection result closes I grades of standards of GB/T2970-2004；
Yield strength 450MPa, tensile strength 579MPa, elongation percentage 27%, 0 DEG C of impact of collision work(120J, 117J, 92J execute standard ginseng
Examine EN10028.
Embodiment 2
Plate Production specification：Thick 4mm, the ply rolling plate thickness 16mm after rolling.
The production method of the general carbons steel plate of the present embodiment low-alloy includes base, rolling, separation process, specific process step
As described below：
(1) preforming：Put the Q345E sheet packs of 4 pieces of 12mm thickness into row base, the abutment joint 0.7mm of steel plate, billet surface
1 μm of roughness；Every piece of surface of steel plate, which is polished to polish and apply, spreads interleaving agent, and the group of interleaving agent becomes：8% iron chloride, 20%
Magnesium chloride, remaining ingredient are water；Use the compound base of vacuum welding, speed of welding 90mm/s, weld heat input 50KJ/cm3；
（2）Rolling process：Hot rolling technology is used when rolling, roll reduction 8mm, it is 16mm, width that thickness is obtained after rolling
The Q345E steel plates of 2950mm；
（3）Separation process：It is detached by cutting after steel plate rolling, obtains the production board of 4 pieces of thickness 4mm.
The performance of Q345E finished steel plates obtained by the present embodiment：Steel plate inspection result closes I grades of standards of GB/T2970-2004；
Yield strength 420MPa, tensile strength 550MPa, elongation percentage 25%, -40 DEG C of impacts of collision work(80J, 97J, 103J execute standard
With reference to GB/T1591.
Embodiment 3
Plate Production specification：Thick 6mm, the ply rolling plate thickness 24mm after rolling.
The production method of the general carbons steel plate of the present embodiment low-alloy includes base, rolling, separation process, specific process step
As described below：
(1) preforming：Put the Q345C sheet packs of 4 pieces of 18mm thickness into row base, the abutment joint 1mm of steel plate, billet surface is thick
3 μm of rugosity；Every piece of surface of steel plate, which is polished to polish and apply, spreads interleaving agent, and the group of interleaving agent becomes：10% iron chloride, 20%
Magnesium chloride, remaining ingredient are water；Use the compound base of vacuum welding, speed of welding 100mm/s, weld heat input 55KJ/
cm3；
（2）Rolling process：Hot rolling technology is used when rolling, roll reduction 7mm, it is 24mm, width that thickness is obtained after rolling
The Q345C steel plates of 3200mm；
（3）Separation process：It is detached by cutting after steel plate rolling, obtains the production board of 4 pieces of thickness 6mm.
The performance of Q345C finished steel plates obtained by the present embodiment：Steel plate inspection result closes I grades of standards of GB/T2970-2004；
Yield strength 420MPa, tensile strength 575MPa, elongation percentage 26%, 0 DEG C of impact of collision work(130J, 137J, 102J execute standard
With reference to GB/T1591.
Embodiment 4
Plate Production specification：Thick 8mm, the ply rolling plate thickness 32mm after rolling.
The production method of the general carbons steel plate of the present embodiment low-alloy includes base, rolling, separation process, specific process step
As described below：
(1) preforming：Put the A36 sheet packs of 4 pieces of 56mm thickness into row base, the abutment joint 1mm of steel plate, billet surface is coarse
2 μm of degree；Every piece of surface of steel plate, which is polished to polish and apply, spreads interleaving agent, and the group of interleaving agent becomes：10% iron chloride, 25% chlorine
Change magnesium, remaining ingredient is water；Use the compound base of vacuum welding, speed of welding 120mm/s, weld heat input 60KJ/cm3；
（2）Rolling process：Hot rolling technology is used when rolling, roll reduction 10mm, it is 32mm, width that thickness is obtained after rolling
The A36 steel plates of 3200mm；
（3）Separation process：It is detached by cutting after steel plate rolling, obtains the production board of 4 pieces of thickness 8mm.
The performance of A36 finished steel plates obtained by the present embodiment：Steel plate inspection result closes I grades of standards of GB/T2970-2004；It bends
Intensity 370MPa, tensile strength 550MPa are taken, elongation percentage 32% executes canonical reference ASTM A36.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to the present invention into
Go detailed description, it will be understood by those of ordinary skill in the art that：It can still modify to the present invention or equally replace
It changes, without departing from the spirit or scope of the invention, or any substitutions, the right that should all cover in the present invention is wanted
It asks in range.
Claims (8)
1. a kind of production method of the general carbons steel plate of 3~8mm thick low-alloys, which is characterized in that the production method include base,
Rolling, separation process；The preforming, for the thickness of steel plate in 12~32mm, speed of welding is 80~120mm/s, sealing wire
36~60KJ/cm of energy3。
2. a kind of production method of the general carbons steel plate of 3~8mm thick low-alloys according to claim 1, which is characterized in that institute
Preforming is stated, using the same steel plate of 4 block sizes, symmetrically to one piece of progress base is stacked in, every piece of surface of steel plate is polished
It polishes and applies and spread interleaving agent, use the compound base of vacuum welding.
3. a kind of production method of the general carbons steel plate of 3~8mm thick low-alloys according to claim 2, which is characterized in that institute
Preforming is stated, the group of interleaving agent becomes：Iron chloride 6~10%, magnesium chloride 15~25%, remaining ingredient are water.
4. a kind of production method of the general carbons steel plate of 3~8mm thick low-alloys according to claim 1, which is characterized in that institute
Preforming is stated, the abutment joint between steel plate is 0.5~1mm, and surface roughness is 1~3 μm.
5. the production method of the general carbons steel plate of a kind of 3~8mm thick low-alloys according to any one of claims 1-4,
It is characterized in that, the preforming, the steel grade of steel plate is low-alloy steel, straight carbon steel or low-alloy high-strength steel.
6. the production method of the general carbons steel plate of a kind of 3~8mm thick low-alloys according to any one of claims 1-4,
It is characterized in that, the rolling process, steel plate uses hot rolling technology, roll reduction≤10mm after base.
7. the production method of the general carbons steel plate of a kind of 3~8mm thick low-alloys according to any one of claims 1-4,
It is characterized in that, the separation process, after steel plate rolling, 4 pieces of finished steel plates is separated by cutting.
8. the production method of the general carbons steel plate of a kind of 3~8mm thick low-alloys according to any one of claims 1-4,
It is characterized in that, the finished steel plate maximum width 3200mm of the production method production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259743.9A CN108543809A (en) | 2018-03-27 | 2018-03-27 | A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259743.9A CN108543809A (en) | 2018-03-27 | 2018-03-27 | A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108543809A true CN108543809A (en) | 2018-09-18 |
Family
ID=63517378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810259743.9A Pending CN108543809A (en) | 2018-03-27 | 2018-03-27 | A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108543809A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060684A (en) * | 2013-01-08 | 2013-04-24 | 舞阳钢铁有限责任公司 | Production method of high-performance steel plate having thickness of 6mm |
| CN104190715A (en) * | 2014-09-26 | 2014-12-10 | 西部钛业有限责任公司 | Ply rolling processing method for TC1 titanium alloy thin plate |
| CN104551673A (en) * | 2014-12-23 | 2015-04-29 | 山东钢铁股份有限公司 | Method for producing ultrathin-size wide medium plate in a pack rolling way |
| CN105414181A (en) * | 2015-12-25 | 2016-03-23 | 西部钛业有限责任公司 | Processing method of pure-zirconium wide sheet |
-
2018
- 2018-03-27 CN CN201810259743.9A patent/CN108543809A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060684A (en) * | 2013-01-08 | 2013-04-24 | 舞阳钢铁有限责任公司 | Production method of high-performance steel plate having thickness of 6mm |
| CN104190715A (en) * | 2014-09-26 | 2014-12-10 | 西部钛业有限责任公司 | Ply rolling processing method for TC1 titanium alloy thin plate |
| CN104551673A (en) * | 2014-12-23 | 2015-04-29 | 山东钢铁股份有限公司 | Method for producing ultrathin-size wide medium plate in a pack rolling way |
| CN105414181A (en) * | 2015-12-25 | 2016-03-23 | 西部钛业有限责任公司 | Processing method of pure-zirconium wide sheet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108326516B (en) | Preparation method of titanium steel composite board | |
| CN105798062B (en) | A kind of method of oblique ripple roll Rolling compund strip | |
| CN109695000B (en) | Double-sided titanium steel composite plate with IF steel as transition layer and high-temperature preparation method thereof | |
| CN108580554A (en) | A kind of production method of thin plate | |
| CN104815907B (en) | Quick connection die and method for hot rolled strip intermediate billets | |
| CN104630627B (en) | A kind of DH36 ship structure steel plate and Low-cost production method thereof | |
| CN102615102A (en) | Cold rolling manufacture method of copper and aluminum composite plate strips | |
| WO2015109425A1 (en) | Method for rolling metal compound plate strip | |
| CN102274851A (en) | Method for manufacturing titanium alloy sheet by cladding and pack rolling of steel plate | |
| CN105618479B (en) | A kind of method of herringbone corrugating roll Rolling compund strip | |
| CN105821334B (en) | The method that 4mm thickness Q345DE steel plates are produced on wide and heavy plate mill | |
| CN105057353A (en) | Rolling method for explosive cladding titanium-steel-titanium double-faced composite board | |
| CN104138903A (en) | Manufacturing method for rolling titanium-steel composite plate | |
| CN106269961A (en) | A kind of container stainless steel double-sided composite plate and manufacture method thereof | |
| CN104525611A (en) | Nichrome and carbon steel composite board as well as production method thereof | |
| CN106808785A (en) | A kind of production method for rolling think gauge clad steel plate | |
| CN107661900A (en) | A kind of hot tandem produces the manufacture method of two-sided stainless steel clad plate | |
| CN110834202A (en) | Production method of carbon-manganese low-temperature steel plate for large VLGC ship | |
| CN107900129A (en) | A kind of processing method of improvement TA5 A titanium alloy wide medium-thick plate templates | |
| CN109692884B (en) | Titanium steel composite board with IF steel as transition layer and high-temperature preparation method thereof | |
| CN108543809A (en) | A kind of production method of the general carbons steel plate of 3~8mm thick low-alloys | |
| CN205020505U (en) | Aluminium composite -board -strip | |
| HUO et al. | Corrugated interface structure and formation mechanism of Al/Mg/Al laminate rolled by hard plate | |
| CN104438321B (en) | A kind of preparation method of ocean engineering TA22 titanium alloy plate | |
| CN106216947A (en) | A kind of production method of big thickness flaw detection steel plate |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180918 |
|
| WD01 | Invention patent application deemed withdrawn after publication |