CN104942096A - Method and device for hot rolling forming of super-strength steel - Google Patents
Method and device for hot rolling forming of super-strength steel Download PDFInfo
- Publication number
- CN104942096A CN104942096A CN201510408552.0A CN201510408552A CN104942096A CN 104942096 A CN104942096 A CN 104942096A CN 201510408552 A CN201510408552 A CN 201510408552A CN 104942096 A CN104942096 A CN 104942096A
- Authority
- CN
- China
- Prior art keywords
- rolling
- heater
- super
- strength steel
- hth
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
The invention provides a method and a device for hot rolling forming of super-strength steel. Compared with the prior art, the method overcomes defects of an existing hot stamping and normal-temperature rolling forming method for super-strength steel. According to the characteristics of super-strength steel, a super-strength steel hot rolling forming technology with good heating efficiency is designed. By means of the method, the strength of a formed part can be multiplied, few waste defective goods are produced, the quality is stable and reliable, the continuous production requirements of a modern enterprise are met, the production efficiency is improved, rebounding deformation of the formed part is controlled effectively by a cooling device, and better engineering application value is realized.
Description
Technical field
The invention of this project belongs to hot-rolling pressure technical field, relates generally to a kind of super-high strength steel hot-rolling pressing formation method and device thereof.
Background technology
First, at logistic industry, container, as the important carrier of international transport, has played important function in world economy and trade.2013, Chinese container accounted for more than 95% of the world, and volume of production and marketing reaches 3,100,000 TEU, ended the end of the year in 2014, and China has continued to hold a post or title the position of Logistics Equipment container market, world volume of production and marketing first for 21 years.Secondly, in automobile industry, China breaks through 2,000 ten thousand production and marketing in 2013, and within continuous 6 years, occupy first place in the world in position.
According to above analysis can find no matter be logistics, automobile and other industries, all there is huge market.Acute statistics, each container comprises all kinds of reinforcement structural members such as crossbeam, curb girder and arched girder about up to a hundred, namely has market demand at least 3,000 ten thousand; Each automobile comprises collision prevention girders, bumper bar and front bar etc., and about more than 20 reinforcements, namely have market demand close to 4 hundred million.This two classes reinforcement all has the features such as cross section structure is simple, size is larger.Particularly the reinforcement size of container is substantially more than 1.6 meters.
Along with the aggravation of energy crisis and environmental problem, lightweight has become the emphasis research topic in logistics and automobile industry field.For the container that logistics uses, if each casing can reduce constant weight, so on the cargo ship of equal loading capacity, just more freight volume can be increased.For automobile, alleviate car weight, the important means of energy-saving and emission-reduction especially and method.Current, using more and more ripe is drop stamping technique, and it meeting in requirement of strength situation, can at least reduce the steel plate thickness of 1mm.For complex-shaped, the part that size is less, uses drop stamping yes and well select.But reinforcement that is simple for the structure analyzed before us, bulky dimensions, use drop stamping technique, the die size of needs at least will more than 1.6 meters.So not only add the manufacturing cost of hot stamping die, but also need more large-tonnage forcing press.
In addition, if use rolling techniques, although effectively can avoid the manufacturing cost of hot stamping die, the rolling techniques of current domestic use is cold roll-in (i.e. roll-in under normal temperature) substantially.Be difficult to the intensity effectively improving drip molding, the intensity of its drip molding, about 700MPa, is difficult to meet instructions for use.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of super-high strength steel hot-rolling pressing formation method and device thereof, it has following characteristics:
(1) can realize producing cross sectional shape simple, the structural member of random length size, reinforcement, can realize continuous seepage, enhance productivity.
(2) compared with drop stamping, present invention saves the manufacturing cost of hot stamping die.
(3) compared with normal temperature roll-in, intensity can improve 2 ~ 3 times, can reach more than 1500MPa.Meeting in engineering structure part instructions for use situation, effectively can realize alleviating loss of weight by the thickness reducing plate.
(4) be suitable for producing in enormous quantities, more than 10 times that raise the efficiency compared with punching press, bending technique, manufacturing cost significantly reduces, and production efficiency significantly improves.
To achieve these goals, the technical solution used in the present invention is: a kind of super-high strength steel hot-rolling pressing formation method, comprises the following steps:
1., the plate under normal temperature state is delivered to the charging aperture of heater conveyor;
2. after, plate enters heater conveyor, constantly heated by high temperature heater (HTH), utilize temperature controller to carry out temperature control to whole heater conveyor, make plate complete austenitizing in heater conveyor, its temperature controls at 800 ~ 1200 DEG C, temperature retention time 3 ~ 10 minutes;
3., plate out directly transmits afterwards from the discharging opening of heater conveyor and enters rolling formation machine, ensure that plate keeps identical temperature thus reduces distortion in whole forming process by the high temperature heater (HTH) that is provided with in rolling formation machine and temperature controller, and utilize heat insulating board to be incubated, under forming temperature, by the roll-in of some groups of rolling dies, plate is finally shaped;
4. the drip molding after, being shaped is sent in cooler immediately, the aligning transmission running roller installed in cooler is utilized to align the drip molding be just shaped, then spray system is utilized to cool drip molding rapidly, utilize hydrojet flow to control the cooling velocity of quenching, make it be greater than drip molding critical cooling rate, make drip molding obtain complete martensite.
For realizing the method, there is provided a kind of super-high strength steel hot-rolling pressing formation device further, comprise heater conveyor, rolling formation machine and cooler, heater conveyor comprises conveyer belt, high temperature heater (HTH), described high temperature heater (HTH) is arranged on below conveyer belt, and its length is slightly shorter than the latter; Rolling formation machine comprises some groups of rolling dies, high temperature heater (HTH), and described high temperature heater (HTH) is arranged on the below of some groups of rolling dies or is embedded in each rolling die; Cooler comprises spray system and aligning transmission running roller, and described spray system is in above aligning transmission running roller; Heater conveyor, rolling formation machine and cooler are arranged in order and the import of the outlet of heater conveyor and rolling formation machine is close, the import of the outlet of rolling formation machine and cooler is close; Described heater conveyor and rolling formation machine all also comprise heat insulating board and temperature controller.
A nearly step, described high temperature heater (HTH) is heating tube or load coil.
Compared with prior art, the invention has the beneficial effects as follows:
(1) adopt hot roll forming techniques, effectively can avoid the significant cost of hot stamping die.
(2) for normal temperature rolling formation, super-high strength steel is difficult to be shaped, and utilizes hot rolling techniques can be easy to realize the shaping of multiple ultrafort steel structural member.And the intensity of its drip molding at least can be multiplied, can more than 1500MPa be reached, the instructions for use of engineering structure part can be met completely.
(3) hot-rolling pressing formation is the progressively distortion of multiple operation, and waster is few and quality quite stable reliable, saves cost, can continuous seepage, greatly improves production efficiency.
(4) devise corresponding heating and heat-insulating device, and adopt temperature controller can carry out real-time temperature control very well.
(5) adopt cooling device, drip molding can be made to obtain complete martensite.Greatly improve drip molding mechanical performance and effectively reduce resilience.
Instant invention overcomes existing drop stamping, normal temperature rolling formation is not enough, and according to the characteristic of ultrafort steel, devise the good super-high strength steel hot-rolling pressing formation method of the efficiency of heating surface and device thereof, meet the requirement of modern enterprise continuous seepage, enhance productivity, and effectively adopt cooling device to control the resilience of drip molding, there is good engineering and adapt to be worth.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.Wherein:
Fig. 1 is the Plant arrangement figure of a kind of super-high strength steel hot-rolling of the present invention pressing formation method
The Plant arrangement top view of Fig. 2 a kind of to be the present invention be super-high strength steel hot-rolling pressing formation method
Marker number in accompanying drawing is described as follows: 1, cooler; 2, rolling formation machine; 3, heater conveyor; 4, plate; 5, conveyer belt; 6, heat insulating board; 7, high temperature heater (HTH); 8, temperature controller; 9, rolling die; 10, spray system; 11, aligning transmission running roller.
Detailed description of the invention
Specific embodiments of the invention, as shown in Figure 1, 2, a kind of super-high strength steel hot-rolling pressing formation method, comprises the following steps:
1., the plate 4 under normal temperature state is delivered to the charging aperture of heater conveyor 3;
2. after, plate 4 enters heater conveyor 3, constantly heated by high temperature heater (HTH) 7, utilize temperature controller 8 to carry out temperature control to whole heater conveyor 3, make plate 4 complete austenitizing in heater conveyor 3, its temperature controls at 800 ~ 1200 DEG C, temperature retention time 3 ~ 10 minutes;
3., plate 4 out directly transmits afterwards from the discharging opening of heater conveyor 3 and enters rolling formation machine 2, ensure that plate 4 keeps identical temperature thus reduces distortion in whole forming process by the high temperature heater (HTH) 7 that is provided with in rolling formation machine 2 and temperature controller 8, and utilize heat insulating board 6 to be incubated, under forming temperature, by the roll-in of some groups of rolling dies 9, plate 4 is finally shaped;
4. the drip molding after, being shaped is sent in cooler 1 immediately, the aligning transmission running roller 11 installed in cooler 1 is utilized to align the drip molding be just shaped, then spray system 10 is utilized to cool drip molding rapidly, utilize hydrojet flow to control the cooling velocity of quenching, make it be greater than drip molding critical cooling rate, make drip molding obtain complete martensite.
For realizing a kind of super-high strength steel hot-rolling pressing formation device of above-mentioned super-high strength steel plate 4 hot-rolling pressing formation method, comprise heater conveyor 3, rolling formation machine 2 and cooler 1, heater conveyor 3 comprises conveyer belt 5, high temperature heater (HTH) 7, described high temperature heater (HTH) 7 is arranged on below conveyer belt 5, and its length is slightly shorter than the latter; Rolling formation machine 2 comprises 8 groups of rolling dies 9, high temperature heater (HTH) 7, and described high temperature heater (HTH) 7 is arranged on the below of 8 groups of rolling dies 9; Cooler 1 comprises spray system 10 and aligning transmission running roller 11, and described spray system 10 is in above aligning transmission running roller 11; Heater conveyor 3, rolling formation machine 2 and cooler 1 are arranged in order and the import of the outlet of heater conveyor 3 and rolling formation machine 2 is close, the import of the outlet of rolling formation machine 2 and cooler 1 is close; Described heater conveyor 3 all also comprises heat insulating board 6 and temperature controller 8 with rolling formation machine 2.
Described high temperature heater (HTH) 7 is heating tube or load coil.
The present invention is according to existing hot press-formed deficiency, and according to the characteristic of ultrafort steel, devise the good super-high strength steel hot-rolling pressing formation method of the efficiency of heating surface and device thereof, meet the requirement of modern enterprise continuous seepage, enhance productivity, and effectively adopt cooling device to control the resilience of drip molding, there is good engineering and adapt to be worth.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a super-high strength steel hot-rolling pressing formation method, is characterized in that, comprise the following steps:
1., the plate under normal temperature state is delivered to the charging aperture of heater conveyor;
2. after, plate enters heater conveyor, constantly heated by high temperature heater (HTH), utilize temperature controller to carry out temperature control to whole heater conveyor, make plate complete austenitizing in heater conveyor, its temperature controls at 800 ~ 1200 DEG C, temperature retention time 3 ~ 10 minutes;
3., plate out directly transmits afterwards from the discharging opening of heater conveyor and enters rolling formation machine, ensure that plate keeps identical temperature thus reduces distortion in whole forming process by the high temperature heater (HTH) that is provided with in rolling formation machine and temperature controller, and utilize heat insulating board to be incubated, under forming temperature, by the roll-in of some groups of rolling dies, plate is finally shaped;
4. the drip molding after, being shaped is sent in cooler immediately, the aligning transmission running roller installed in cooler is utilized to align the drip molding be just shaped, then spray system is utilized to cool drip molding rapidly, utilize hydrojet flow to control the cooling velocity of quenching, make it be greater than drip molding critical cooling rate, make drip molding obtain complete martensite.
2. for realizing a kind of super-high strength steel hot-rolling pressing formation device of super-high strength steel plate hot-rolling pressing formation method according to claim 1, it is characterized in that: comprise heater conveyor, rolling formation machine and cooler, heater conveyor comprises conveyer belt, high temperature heater (HTH), described high temperature heater (HTH) is arranged on below conveyer belt, and its length is slightly shorter than the latter; Rolling formation machine comprises some groups of rolling dies, high temperature heater (HTH), and described high temperature heater (HTH) is arranged on the below of some groups of rolling dies or is embedded in each rolling die; Cooler comprises spray system and aligning transmission running roller, and described spray system is in above aligning transmission running roller; Heater conveyor, rolling formation machine and cooler are arranged in order and the import of the outlet of heater conveyor and rolling formation machine is close, the import of the outlet of rolling formation machine and cooler is close; Described heater conveyor and rolling formation machine all also comprise heat insulating board and temperature controller.
3. a kind of super-high strength steel hot-rolling pressing formation device according to claim 2, is characterized in that: described high temperature heater (HTH) is heating tube or load coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408552.0A CN104942096A (en) | 2015-07-13 | 2015-07-13 | Method and device for hot rolling forming of super-strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408552.0A CN104942096A (en) | 2015-07-13 | 2015-07-13 | Method and device for hot rolling forming of super-strength steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104942096A true CN104942096A (en) | 2015-09-30 |
Family
ID=54157455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408552.0A Pending CN104942096A (en) | 2015-07-13 | 2015-07-13 | Method and device for hot rolling forming of super-strength steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104942096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925638A (en) * | 2017-05-02 | 2017-07-07 | 内蒙古包钢钢联股份有限公司 | The hot rolling forming method of superhigh intensity steel band |
| CN108070699A (en) * | 2017-08-29 | 2018-05-25 | 东北大学 | A kind of steel plate rolled quenching machine high pressure cooling device and cooling means |
| CN111299357A (en) * | 2020-03-02 | 2020-06-19 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
| CN111421055A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | Beam part roller punching composite forming equipment and roller punching composite forming process thereof |
-
2015
- 2015-07-13 CN CN201510408552.0A patent/CN104942096A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925638A (en) * | 2017-05-02 | 2017-07-07 | 内蒙古包钢钢联股份有限公司 | The hot rolling forming method of superhigh intensity steel band |
| CN108070699A (en) * | 2017-08-29 | 2018-05-25 | 东北大学 | A kind of steel plate rolled quenching machine high pressure cooling device and cooling means |
| CN108070699B (en) * | 2017-08-29 | 2019-08-23 | 东北大学 | A kind of steel plate rolled quenching machine high pressure cooling device and cooling means |
| CN111421055A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | Beam part roller punching composite forming equipment and roller punching composite forming process thereof |
| CN111299357A (en) * | 2020-03-02 | 2020-06-19 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
| CN111299357B (en) * | 2020-03-02 | 2021-12-21 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100371129C (en) | Tech. for forging forming of hook fastener flame of wagon and maould thereof | |
| CN104942096A (en) | Method and device for hot rolling forming of super-strength steel | |
| CN111360066B (en) | Low-cost, less-red-rust, high-strength and anti-seismic deformed steel bar production method and system | |
| CN103203360B (en) | Large-strain rolling method for alloy or metal matrix composite wide thin plates | |
| CN102672014A (en) | Method for producing cold-formed steel of U-shaped davit arm | |
| CN103212617A (en) | Automatic production method of magnesium alloy plate in hot stamping forming mode | |
| CN204711008U (en) | A kind of 22MnB5 boron steel U-shaped heat stamping and shaping cooling experiment mould | |
| CN102989942A (en) | Forging method of single-throw crank shaft | |
| CN103286235A (en) | Automatic production line for hot stamping formation of magnesium alloy boards | |
| CN106140813A (en) | The cold rolling production method of chrome ferritic stainless steel in a kind of automobile exhaust system | |
| CN103736790B (en) | High-strength automobile transmission shaft tube double-pass W bend combination forming technology | |
| CN107597962A (en) | A kind of drop stamping and the integrated technique of die trimming | |
| CN101168224A (en) | Heating and forming method for cold bending sectional steel and cold bending sectional steel produced by the same | |
| CN204770026U (en) | Shaper is pressed to super high -strength steel hot -rolling | |
| CN104646416A (en) | Strong-shear rolling forming method and device for metal plate | |
| CN112404226A (en) | Forming device for steel processing | |
| CN101497936B (en) | On-line and off-line combined quenching refrigerating device after steel rolling | |
| CN102941255B (en) | Online roll bending forming technology for super-strength pipe piece | |
| CN104762460A (en) | Rolling and deep-processing short-process integrated manufacturing method of high-strength steel automobile sheet | |
| Yan et al. | Investigation of high strength steel for automotive roll-forming parts | |
| CN103882323A (en) | MnCr alloying thermal-forming steel and production method thereof | |
| CN202951740U (en) | Online roll bending and forming device for pipe fittings with ultra-high strength | |
| CN103212629A (en) | Method, mold and system for manufacturing mechanical parts | |
| CN104438424B (en) | Optimization process of 5083H321 aluminum alloy plate | |
| CN205043113U (en) | A apparatus for producing is forged to continuous casting for taking extrude type of moulding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |