CN101972798B - Roll center heating type roll bending forming method and device thereof - Google Patents
Roll center heating type roll bending forming method and device thereof Download PDFInfo
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- CN101972798B CN101972798B CN201010273651XA CN201010273651A CN101972798B CN 101972798 B CN101972798 B CN 101972798B CN 201010273651X A CN201010273651X A CN 201010273651XA CN 201010273651 A CN201010273651 A CN 201010273651A CN 101972798 B CN101972798 B CN 101972798B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000013000 roll bending Methods 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 51
- 239000002184 metal Substances 0.000 claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 46
- 239000007769 metal material Substances 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 238000010008 shearing Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 7
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000005482 strain hardening Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- -1 magnesium alloy Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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Abstract
The invention relates to a roll center heating type roll bending forming method for a metal plate strip, belongs to the field of roll bending forming technology and equipment, and is used for solving the problem that metal plates such as magnesium alloy, aluminum alloy, high-strength steel and the like are difficult to form due to work hardening. The method is characterized in that a working roll is heated in a protective atmosphere, after the working roll is heated to a required temperature, the hot working roll is used for roll bending forming of a metal plate, and heat is transferred to the metal plate from the working roll to heat the metal plate; and cooling the rolled plate, and cutting according to a set length. In addition, the invention also provides a roll core heating type roll bending forming device according to the method, which comprises a roll bending forming machine, a computer system, a heating system, a cooling system and a gas protection cover. Compared with the traditional roll bending forming device, the invention has the advantages of less forming passes, high product surface quality and easier processing of metal plates which are difficult to form.
Description
Technical field
The present invention relates to a kind of roll centre heated type roll forming method and the device thereof of sheet metal, belong to roll forming technology and apparatus field, be used to solve sheet metals such as magnesium alloy, aluminium alloy and high strength steel because of the difficult problem that is shaped of work hardening.
Background technology
Roll forming is the multi-pass forming rolls through arranged in order, little by little carries out transverse curvature to metal plate and belts such as coiled material, bands, to process the section bar of specific section.Characteristics such as the roll bending section bar has that section is reasonable, intensity is high, rigidity is big, in light weight, using rate of metal height are the economical very widely section section bars of a kind of purposes, are widely used in industries such as automobile, building, machinery, aviation.
At present, the Chinese national economy sustained and rapid development, the roll bending section bar market demand increases day by day, and range of application constantly enlarges, and market prospects are very wide.In its application, more and more by user's understanding, it belongs to the efficient section bar of economic section to the advantage of roll bending section bar; Compare with similar hot-rolled profile and can practice thrift metal 15～30%, and small investment, produce flexibly; Can satisfy user's various requirement; In the personalization market development, more demonstrate its unique advantages, extensively adopt the roll bending section bar to replace hot-rolled profile and other kinds, become irresistible trend.Yet present roll forming product crosssection shape is complicated day by day, and conventional roll bending technology has run into the difficulty that is difficult to overcome when roll bending section bar products such as production magnesium alloy, aluminium alloy and high strength steel.In forming process, because the work hardening of sheet material causes its intensity, hardness to raise; Plasticity, toughness reduce, and proceed plastic deformation to sheet material and bring difficulty, when reaching the maximum distortion degree; Be easy to cause section bar to break, make shaping to proceed.
With abroad compare, at present roll bending shaped steel, aluminium alloy, the magnesium alloy of exploitation stainless steel, high strength and superhigh intensity low-alloy material is badly in need of in China, and the highly difficult compound section section bar product of ultra thick, ultra-thin, sharp right angle series.Wherein, the development of difficult forming profiles such as magnesium alloy, aluminium alloy and high strength steel is particularly urgent.
The patent No. is to disclose a kind of U type channel-section steel cold bending equipment in the Chinese utility model patent specification of ZL 200820123096.0; Comprise support, main transmission portion, clamping and conveying device, guider and a plurality of roller group; Wherein each roller group comprises the edger roll device peace roller arrangement that sets gradually; Clamping and conveying device, guider, roller group are fixed on the support successively, and through main transmission portion synchronous operation.But this utility model Direct Production goes out the U type channel-section steel of different length, width, but the bent angle radius is excessive, is difficult to produce the section bar product at high accuracy point right angle.
Compare with conventional roll forming technology, roll centre heated type roll forming technology has remarkable advantages.Sheet metal hardness through after the heat treated is low, handling ease, and the extension performance is good, has well solved the problem that shape process medium section breaks, and more is apt to do the difficult section bar product that is shaped of conventional methods such as magnesium alloy, aluminium alloy, high strength steel.
Summary of the invention
For overcoming the problems referred to above that prior art exists, the present invention aims to provide a kind of roll centre heated type roll forming method and the device thereof of sheet metal, to solve sheet metals such as magnesium alloy, aluminium alloy, high strength steel because work hardening and the difficult problem that is shaped.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is following:
A kind of roll centre heated type roll forming method is characterized in that, in protective atmosphere, working roll is heated; After treating the temperature of working roll heating requirements; Hot working roll carries out roll bending processing to sheet metal, and heat is passed to sheet metal from working roll, and sheet metal is heated; Sheet material to behind the roll forming cools off, and carries out the cutting vanning according to the length of setting; To sheet metal heat, roll bending, cooling procedure carry out in protective atmosphere.
A kind of roll centre heated type roll forming device according to the said method realization; Comprise roll forming machine, computer system, heating system, cooling system, gas shield cover; It is characterized in that; Said roll forming machine comprises feeding roller, roller unit, shaping frame, shearing device, backing roll and finished product piling case according to the processing sequence of sheet metal; Said computer system comprises CPU and connection line, and CPU is communicated with feeding roller, heating system, roller unit, cooling system, shearing device, backing roll through connection line; Said heating system comprises AC power, temperature-controlled box, thermocouple, metal material heater; AC power is connected with temperature-controlled box; Thermocouple embeds the side of working roll ringwise with the surveying work roll surface temperature, and the temperature that records feeds back to temperature-controlled box, and metal material heater one end is fixed; In upper and lower working roll roll centre, temperature-controlled box is controlled the heating voltage of metal material heater to other end fire end by cantilever support; Said cooling system comprises cooling device, is positioned at after the roller unit according to the sheet material processing sequence; Said gas shield cover is connected with protective gas air inlet pipe, blast pipe respectively; The protective gas air inlet pipe is positioned at the top of described gas shield cover; Blast pipe is positioned at the bottom of described gas shield cover, and said gas shield covers on the sheet metal import and export has the sand seal device to seal; Heating system, roller unit, cooling system are within said gas shield cover.
In the technique scheme, the heating of sheet metal, roll bending processing, cooling procedure are in the hot protective atmosphere of said gas shield cover, to carry out, and have avoided the oxidative phenomena of sheet metal under high-temperature situation, have guaranteed surface quality of products; Hot protective gas gets into said gas shield cover through air inlet pipe, and the cold air in the said gas shield cover is gone out through the blast pipe drive row; Protective gas in the said gas shield cover is a kind of in hot nitrogen, the hot hydrogen.
In the roll forming process; In advance with the cold air in the said gas shield cover of hot nitrogen drive row; Hot nitrogen gets into from the air inlet pipe at said gas shield cover top, because the cold air in the more said gas shield cover of hot nitrogen proportion is little, nitrogen is about pressure-fired 200Pa (20mm water column) in the said gas shield cover; Cold air is gone out by drive row progressively through sand seal and base bleed pipe in the cover, realizes heating, online roll forming, the online gas shield when cooling off.
Said heating system adopts the metal material heater that working roll is heated; The heating power of metal material heater at 1KW between the 10KW; Power changes with the working roll size, and heating back work roll surface temperature is between 200 ℃ to 900 ℃, and heat is passed to sheet metal from working roll; The temperature of sheet metal is raise, to eliminate the work hardening influence of sheet metal.
In said heating system, power supply is connected with temperature-controlled box, and metal material heater one end is fixed; In upper and lower working roll roll centre, when working roll need heat, temperature-controlled box control sheet metal heater heated required voltage to other end fire end by cantilever support; The side that thermocouple is positioned at working roll ringwise; Thermocouple measurement work roll surface temperature, the temperature that records feeds back to CPU, when the work roll surface temperature reaches the requirement temperature; The sheet metal heater stops heating, and sheet metal is carried out roll bending; When the work roll surface temperature is lower than working roll requirement temperature range; The metal material heater continues heating; Do not influence roll bending work, thereby realize being installed in the heated condition of roll roll centre internal heater through the control of closed loop attemperating unit, and then the purpose of control roller surface temperature.
Sheet metal is after said roll forming machined is accomplished; Get into said cooling system; Cooling velocity is 100 ℃/min～300 ℃/min; Improve the obdurability of workpiece, the cooling device of said cooling system is a kind of in water cooling plant, cooling facility for laminar flow, high-speed gas injection cooling device, oil cooling device, the high hydrogen protective gas injected cool radiator cooler.
" irreversible temper brittleness " phenomenon takes place 250 ℃～400 ℃ temperature range tempering meetings in steel and alloy thereof, therefore when this temperature range heating, can select the less steel of impure element for use, to reduce the influence of Low-Temperature Temper Brittleness.
The present invention and existing roll forming compared with techniques have following outstanding advantage and effect:
1, the present invention can reduce the work hardening of sheet metal, improves the forming limit of sheet metal, lowers the distortion of materials drag, increases uniformity, toughness and ductility that material flows, has improved the forming property of sheet metal;
2, the present invention has reduced the mechanical load of roll forming unit, and the shaping passage in the roll forming process also can correspondingly reduce, and has saved forming technology, has improved economic benefits;
3, the sheet metal hardness after the heat treated of the present invention is low, handling ease, and therefore the extension performance is good, has well solved the problem that shape breaks in the shape process, more is prone to difficult shaping alloy such as magnalium and high-strength steel are processed;
4, the invention solves oxide layer problem in the sheet metal heating process, guaranteed processing back surface quality of products.
Description of drawings
Fig. 1 is the structural representation of a kind of roll centre heated type roll forming device provided by the present invention;
Fig. 2 is the sketch map that said heating system adopts the metal material heater;
Fig. 3 A is the device sketch map that said cooling system adopts water-cooling pattern;
Fig. 3 B is that said cooling system adopts water-cooling pattern device left view;
Fig. 4 A is embodiments of the invention 1, routine 2 medium section sectional views;
Fig. 4 B is embodiments of the invention 1, routine 2 medium section schematic perspective views.
Label shown in the figure is: 1 metallic plate roll coil of strip base; 2 metal plate and belts; 3 feeding rollers; 4 shaping frames; 5 sand seal devices; 6 protective gas air inlet pipe; 7 roller units; 8 gas shield covers; 9 cooling devices; 10 blast pipes; 11 shearing devices; 12 backing rolls; 13 finished product piling casees; 14 AC powers; 15 temperature-controlled boxs; 16 conductor wires; 17 stop nuts; 18 bearings; 19 thermocouples; 20 metal material heaters; 21 top working rolls; 22 bottom working rolls; 23 bearings; 24 water inlets; 25 decompression cabinets; 26 water inlet pipes; 27 metal works; 28 cowling panels; 29 conical nozzles; 30 metal works are imported and exported.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment device provided by the present invention is done further detailed description:
Device provided by the present invention comprises roll forming machine, computer system, heating system, cooling system, gas shield cover.As shown in Figure 1, said roll forming machine comprises feeding roller (3), shaping frame (4), roller unit (7), shearing device (11), backing roll (12) and finished product piling case (13); Said computer system comprises CPU, connection line, and CPU is communicated with feeding roller (3), roller unit (7), cooling system, shearing device (11), backing roll (12) through connection line; Said heating system comprises AC power (14), temperature-controlled box (15), thermocouple (19), metal material heater (20); Said cooling system comprises cooling device, is positioned at after the roller unit according to the sheet material processing sequence; Said gas shield cover (8) is connected with protective gas air inlet pipe (6), blast pipe (10) respectively; Protective gas air inlet pipe (6) is positioned at the top of described gas shield cover (8); Blast pipe (10) is positioned at the bottom of said gas shield cover (8); Have sand seal device (5) to seal at sheet metal through the place, heating system, roller unit (7), cooling system are within said gas shield cover.
Before roll forming, with the cold air in the said gas shield cover of hot nitrogen drive row (8), the interior cold air of said gas shield cover (8) is gone out by drive row progressively through sand seal and base bleed pipe; In the protective atmosphere of said gas shield cover (8), after the sheet metal uncoiling, get into the roll forming machine, through feeding roller (3), get into roller unit (7) and heat roll bending; When the roller surfaces temperature of roller unit (7) reaches the temperature of said computer system settings; Metal material heater (20) stops heating under temperature-controlled box (15) control; Metal plate and belt (2) is carried out roll-in; When the roller surfaces temperature of roller unit (7) was lower than the temperature range of said computer system settings, metal material heater (20) continued heating, does not influence roll bending work; After treating that sheet metal machines; Getting into cooling device (9) cools off; Carry out cutting through said computer system control shearing device (11) according to the length of said computer system settings then, backing roll (12) is transported to finished product piling case (13) with the sheet material after the cutting and cases.
Fig. 2 is the device sketch map that said heating system adopts the sheet metal heater.Among the figure, AC power (14) is connected with temperature-controlled box (15); Metal material heater (20) one ends are fixed, other end fire end by cantilever support in top working roll (21) and bottom working roll (22) roll centre; When the roller of roller unit (7) need heat, the voltage that temperature-controlled box (15) control metal material heater (20) heating is required, metal material heater (20) thus working roll is heated; Be positioned at the ringwise thermocouple in side (19) the surveying work roll surface temperature of working roll; And the temperature value that records fed back to temperature-controlled box (15); Temperature-controlled box (15) compares the temperature value of temperature value that obtains and setting; Continue required voltage to be provided judging whether, thereby realize being installed in the heated condition of roll roll centre internal heater through the control of closed loop attemperating unit to metal material heater (17), and then the purpose of control roller surface temperature.
Embodiment 1:
Adopt roll centre heated type roll forming device, become tee section shown in Fig. 4 A.The thick 1.0mm that is shaped, the DP800 unimach of wide 72.32mm, forming speed is 20mm/s; Set said heating system and select the metal material resistance type heater for use, power is 15KW, and setting said cooling system is water-cooling apparatus; Cooling velocity is 150 ℃/min, in advance to working roll heating, treat that temperature that thermocouple records reaches 900 ℃ after; To the processing of steel roll bending, the temperature of sheet material rises to 830 ℃ in 2min, obtain the curved steel of hot-rolling of cross sectional shape shown in Fig. 4 A, 4B behind the roll forming.
Embodiment 2:
Adopt roll centre heated type roll forming device, become tee section shown in Fig. 4 A.Thickness 1.0mm, the common carbon steel board of the Q235 of width 72.32mm, forming speed is 30mm/s; Set said heating system and select the sheet metal resistance type heater for use, power is 10KW, and setting said cooling system is hot water cooling device; Cooling velocity is 250 ℃/min; To the working roll heating, treat that the temperature that thermocouple records reaches 900 ℃, carries out roll forming to steel plate in advance; The temperature of steel plate rises to 830 ℃ in 2min, obtain the curved steel of hot-rolling of cross sectional shape shown in Fig. 4 A, 4B behind the roll forming.
In sum, a kind of roll centre heated type roll forming method of the present invention and device thereof are applied to heater, cooling device in the roll bending process, have solved sheet metal in the conventional roll forming owing to the be shaped problem of difficulty of work hardening.In addition, the present invention integrates roll forming system, heating system, cooling system, computer system, and adjustability is good, has saved process time, has improved efficient.Of the present invention reasonable in design, easy for operation, controllability is good.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (7)
1. roll centre heated type roll forming device; Comprise roll forming machine, computer system, heating system, cooling system, gas shield cover; It is characterized in that said roll forming machine comprises feeding roller, roller unit, shaping frame, shearing device, backing roll and finished product piling case; Said heating system comprises AC power, temperature-controlled box, thermocouple and metal material heater; AC power is connected with temperature-controlled box; Thermocouple embeds the side of working roll ringwise, and the temperature that thermocouple records feeds back to temperature-controlled box, and metal material heater one end is fixed; In upper and lower working roll roll centre, temperature-controlled box is controlled the heating voltage of metal material heater to other end fire end by cantilever support; Said gas shield cover is connected with protective gas air inlet pipe, blast pipe respectively; The protective gas air inlet pipe is positioned at the top of described gas shield cover; Blast pipe is positioned at the bottom of said gas shield cover, and said gas shield covers on the sheet metal import and export has the sand seal device; Heating system, roller unit, cooling system are within said gas shield cover.
2. roll centre heated type roll forming device according to claim 1; It is characterized in that; Said computer system comprises CPU and connection line, and CPU is communicated with feeding roller, roller unit, heating system, cooling system, shearing device, backing roll through connection line.
3. roll centre heated type roll forming device according to claim 1 is characterized in that said cooling system comprises cooling device, is positioned at after the roller unit; Said cooling system cooling velocity is 100 ℃/min～300 ℃/min; Cooling device is a kind of in water cooling plant, cooling facility for laminar flow, high-speed gas injection cooling device, the high hydrogen protective gas injected cool radiator cooler.
4. adopt a kind of roll centre heated type roll forming method of device according to claim 1, it is characterized in that in the protective atmosphere of said gas shield cover, the said heating system of said computer system control heats working roll; After treating that working roll is heated to the temperature of said computer system settings, said roll forming machine brings into operation under the control of said computer system; Hot working roll is in the roll forming process to sheet metal, and heat is passed to sheet metal from working roll, and sheet metal is heated; After said roll forming machined was accomplished, sheet metal got into said cooling system cooling; Last said computer system control shearing device carries out cutting according to the length of setting to sheet metal, and the sheet material of backing roll after with cutting is transported to finished product piling case and cases.
5. roll centre heated type roll forming method according to claim 4; It is characterized in that, in said heating system, when working roll need heat; The required voltage of temperature-controlled box control metal material heater heating; Through the metal material heater working roll is heated, thermocouple measurement work roll surface temperature, and the temperature that records fed back to temperature-controlled box; When the work roll surface temperature reached the temperature of said computer system settings, said computer system control temperature-controlled box made the metal material heater stop heating, and the said roll forming machine of said computer system control carries out roll bending processing to sheet metal; When the work roll surface temperature was lower than working roll requirement temperature range, said computer system control temperature-controlled box continued heating to the metal material heater.
6. a kind of roll centre heated type roll forming method according to claim 4; It is characterized in that; To between the 10KW, power changes with the working roll size heating power of said heating system at 1KW, and heating back work roll surface temperature is between 200 ℃ to 900 ℃.
7. a kind of roll centre heated type roll forming method according to claim 4 is characterized in that, the hot protective gas in the said gas shield cover is a kind of in hot nitrogen, the hot hydrogen.
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| CN201010273651XA CN101972798B (en) | 2010-09-06 | 2010-09-06 | Roll center heating type roll bending forming method and device thereof |
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| CN201010273651XA CN101972798B (en) | 2010-09-06 | 2010-09-06 | Roll center heating type roll bending forming method and device thereof |
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| CN102527786B (en) * | 2012-01-04 | 2014-12-10 | 北方工业大学 | Roll bending forming method and device by electromagnetic induction heating between passes |
| CN103837254A (en) * | 2012-11-21 | 2014-06-04 | 上海宝钢工业技术服务有限公司 | Roller heat treatment technology process temperature detection device |
| DE102014211212A1 (en) * | 2014-06-12 | 2015-12-17 | Volkswagen Ag | Method for producing a hybrid board and sheet metal part produced therefrom |
| CN107159751B (en) * | 2017-05-13 | 2019-05-14 | 安徽省一鸣新材料科技有限公司 | Foam aluminium plate high temperature bent plate processing method |
| CN109317527A (en) * | 2017-07-31 | 2019-02-12 | 钱宏毅 | A kind of device manufacturing the dedicated arc-shaped aluminum shape material in tunnel |
| WO2022231528A1 (en) * | 2020-12-28 | 2022-11-03 | Mamur Teknoloji Sistemleri San. A.S. | A production line with stainless steel sheet heating assembly |
| CN113083950A (en) * | 2021-04-19 | 2021-07-09 | 李雅婷 | Template processing equipment for civil engineering construction and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020494Y (en) * | 2007-03-31 | 2008-02-13 | 童嘉易 | Large-scale steel component bending machine |
| DE102007059974B3 (en) * | 2007-12-11 | 2008-12-18 | Thyssenkrupp Umformtechnik Gmbh | Manufacturing hardened component e.g. impact carrier for vehicles, comprises heating the component under inert gas at hardness temperature, moving the component and inductor relative to each other, and quenching the component by emulsion |
| CN101406910A (en) * | 2008-11-19 | 2009-04-15 | 大连华锐股份有限公司 | Large-sized flange molding equipment and molding technique |
| CN201320570Y (en) * | 2008-10-24 | 2009-10-07 | 河南克瑞起重机集团有限公司 | Cold roll forming equipment for U-shaped channel steels |
| CN201791800U (en) * | 2010-09-06 | 2011-04-13 | 北方工业大学 | Roll center heating type roll bend forming device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2826170B2 (en) * | 1990-05-21 | 1998-11-18 | カルソニック株式会社 | Bending equipment for plate materials for heat exchanger tubes of heat exchangers |
| KR20080076541A (en) * | 2007-02-16 | 2008-08-20 | (주)동양산기 | A board manufacturing system and its manufacturing method |
-
2010
- 2010-09-06 CN CN201010273651XA patent/CN101972798B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020494Y (en) * | 2007-03-31 | 2008-02-13 | 童嘉易 | Large-scale steel component bending machine |
| DE102007059974B3 (en) * | 2007-12-11 | 2008-12-18 | Thyssenkrupp Umformtechnik Gmbh | Manufacturing hardened component e.g. impact carrier for vehicles, comprises heating the component under inert gas at hardness temperature, moving the component and inductor relative to each other, and quenching the component by emulsion |
| CN201320570Y (en) * | 2008-10-24 | 2009-10-07 | 河南克瑞起重机集团有限公司 | Cold roll forming equipment for U-shaped channel steels |
| CN101406910A (en) * | 2008-11-19 | 2009-04-15 | 大连华锐股份有限公司 | Large-sized flange molding equipment and molding technique |
| CN201791800U (en) * | 2010-09-06 | 2011-04-13 | 北方工业大学 | Roll center heating type roll bend forming device |
Non-Patent Citations (2)
| Title |
|---|
| JP平4-28437A 1992.01.31 |
| 赵金龙等.辊弯弯曲成型方法的有限元仿真研究.《焊管》.2008,第31卷(第5期),第29-32页，第94页. * |
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