CN106180460A - The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping method - Google Patents
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping method Download PDFInfo
- Publication number
- CN106180460A CN106180460A CN201610525197.XA CN201610525197A CN106180460A CN 106180460 A CN106180460 A CN 106180460A CN 201610525197 A CN201610525197 A CN 201610525197A CN 106180460 A CN106180460 A CN 106180460A
- Authority
- CN
- China
- Prior art keywords
- steel
- section
- controlled
- clod wash
- heating
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
- C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
Abstract
The invention discloses the controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping method, mainly comprise the steps that 1) slitting steel band enters forming frame by clamping and conveying device, it is achieved the clod wash initial set of U-shaped steel part；2) heating region is entered, it is achieved control heating；3) enter controlled rolling deformed area, synchronize to realize controlled rolling variable cross-section and clod wash precisive shaped；4) control cooling zone is entered, it is achieved material structure performance；5) finishing shaping area is entered, it is ensured that precisely form and position tolerance.Preserve after cleaning with derusting cleaning liquid again, quickly remove the rust on steel surface, do not damage the surface of metal structure.The partial cross section's deformation and the cold roll forming that present invention achieves setting position complete simultaneously, treat with a certain discrimination according to material, design heating cycle, rolling pattern and cooling system according to its material and structure property.Mainly include the low-alloy high-strength steel of controlled rolling and controlled cooling, such as structural steel for bridge, building structural steel, steel tissue such as ferritic-pearlitic steel and dual phase steel.
Description
Technical field
The present invention relates to steel structure forming technical field, be specifically related to the controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section with cold
Curved comprehensive shaping method.
Background technology
In Construction of Steel Structure, as bridge cross bridge floor board is mainly made up of floorings, crossbeam and U-shaped steel；Such as building
Main frame structure, is made up of steel plate, square, U-shaped and H profile steel；Steel sheet pile as U-shaped in clod wash is by local hot rolling in Cold Bending
Become crotch-shaped, change the crotch-shaped of traditional cold roll forming, meet engineering construction and keep away water requirement, substitute hot-rolled steel sheet pile.
The U-shaped steel that bridge uses at present is broadly divided into the U-shaped steel of uiform section and the U-shaped steel of variable cross-section, and the U-shaped steel of uiform section is in recent years
Report much about tired disease occurs both at home and abroad, causes require much smaller than bridge main body the fatigue life of steel bridge deck
Design life.Experience have shown that, in the U-shaped steel of above-mentioned uiform section, steel box-girder top board and the crack quantity of U-shaped steel commissure
Many, harm is big, repair difficulty, produces the reason of this fatigue crack: one is owing to U-shaped steel is closed configuration, U-shaped steel can only be from
Outside one side welding, commonly used 75～the partial penetration weldering of 85%, leave the incomplete fusion part of 15～25%, about 1～
2mm, this incomplete fusion part of 1～2mm itself forms a natural initial crack, becomes fatigue crack source, at wheel load
Under repeated action, cause top board and the easy fatigue cracking in U-shaped steel commissure；Two is that the top board weld seam part of U-shaped steel is non-with U-shaped steel
Welding position is compared its section thickness and is reduced 1～2mm, and sectional area reduces, and causes junction to have certain bias, and at this, bias can be led
Cause additional bending moment formation stress to concentrate, thus created fractures.After fatigue crack produces, by reduction floorings rigidity and directly lead
Cause deck paving damages, and mats formation in turn to damage and also aggravates the crack progressing of floorings, the minimizing of aggravation fatigue life, domestic very
It is exactly this problem that many steel box girder bridge floor pavings often keep in repair.The U-shaped steel of variable cross-section increases the bonding area with floorings, weld seam
Solid and reliable, improve the integrally-built stability of bridge.The steel plate of building body frame structure and the welding of the U-shaped steel of variable cross-section
Weld seam increases welding depth, improves weld seam rigidity；Local, U-shaped steel base increases thickness, improves steel construction rigidity.
Summary of the invention
Present invention solves the technical problem that the controlled rolling and controlled cooling being to provide the U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping side
Method, it is achieved that partial cross section's deformation of setting position and cold roll forming complete simultaneously, treat with a certain discrimination according to material, according to it
Material and structure property design heating cycle, rolling pattern and cooling system.Mainly include the low-alloy high-strength steel of controlled rolling and controlled cooling,
Such as structural steel for bridge, building structural steel, steel tissue such as ferritic-pearlitic steel or dual phase steel.
The technical scheme is that controlled rolling and controlled cooling and the clod wash comprehensive shaping method of the U-shaped steel of a kind of variable cross-section, mainly wrap
Include following steps:
1) slitting steel band enters forming frame, and described steel thickness range is 4～16mm, it is achieved the clod wash initial set of steel part；
2) enter heating region, it is achieved control heating, mode of heating be superaudio sensing heating, fuel gas heating or
Frequency Induction Heating, width of heating is 20～200mm, and heated length is 20～500mm；
3) entering controlled rolling deformed area, controlled rolling fixed point changes section configuration, increases or thinning and shape including edge thickness
Shape changes, design attitude local thickness and alteration of form on section, controlled rolling variable cross-section and clod wash precisive shaped be same frame complete or
Frame of intersecting completes, and synchronizes to realize controlled rolling variable cross-section and clod wash precisive shaped；
4) entering control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, it is achieved material structure performance；
5) finishing shaping area is entered, including using pass aligning, the most curved adding recurvation finishing sizing molding, it is ensured that precisely morpheme
Tolerance, it is ensured that finished size is stable.
The partial cross section's deformation and the cold roll forming that achieve setting position complete simultaneously, and are to distinguish according to material
Treat, design heating cycle, rolling pattern and cooling system according to its material and structure property.Mainly include the low of controlled rolling and controlled cooling
Alloy high-strength steel, such as structural steel for bridge, building structural steel, the tissue of steel such as ferritic-pearlitic steel or dual phase steel.
Further, the controlled rolling and controlled cooling of the described U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping method, mainly include with
Lower step:
1) slitting steel band enters forming frame by clamping and conveying device, and described steel thickness range is 4-16mm, in room temperature state
Under, through the roll of one group of longitudinal arrangement, slitting steel band both sides are bent, make plate both sides produce bending angle, and, press
The direction of motion posterior dress roller arrangement of plate makes bending angle be gradually increased, until set angle (30-50 °), makes just one-step forming U
Type, it is achieved the clod wash initial set of steel part；
2) enter heating region, it is achieved control heating, mode of heating be superaudio sensing heating, fuel gas heating or
Frequency Induction Heating, heating-up temperature 300～1050 DEG C of scopes, between heating region and rolling mold install attemperator,
Width of heating is 20～200mm, and heated length is 20～500mm, and heating cycle is wanted according to roll bending and clod wash product material capability
Asking formulation, roll bending uses Frequency Induction Heating mode, and clod wash product uses superaudio induction heating mode；
3) enter controlled rolling deformed area, implement controlled rolling system, rolling temperature control, drafts, deformation system, warm-rolling or
Hot rolling realizes shape change, and controlled rolling fixed point changes section configuration, increases including edge thickness or thinning and shape changes
Design attitude local thickness and alteration of form on change, section, synchronize to realize controlled rolling variable cross-section and clod wash precisive shaped (bend to design
Angle 60-90 °)；
4) entering and control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, rate of cooling be 10 DEG C/s～
100 DEG C/s, it is achieved material structure performance；
5) entering finishing shaping area, finishing shaping area is finishing sizing region, the sizing finishing formed by plain-barreled roll and side roller
Machine, including using pass aligning, the most curved adding recurvation finishing sizing molding, sizing amount is according to U-shaped steel bending radius everywhere and wall thickness
Difference, sizing finishing in the range of 0.3～0.45mm, tolerance can control within ± 0.25mm, it is ensured that precisely morpheme is public
Difference, meets service precision requirement.
Further, preserve after the variable cross-section U-shaped steel derusting cleaning liquid finally produced being cleaned.
Further, described derusting cleaning liquid by mass percentage, is mainly prepared from by following component: carbonic acid
Nickel 1-2%, manganese nitrate 1-2%, stannous chloride 1-3%, citric acid 5-8%, methyl cellosolve 1-1.5, butyl cellosolve 1-
1.5%, thiodiglycol 0.3-0.5%, polyglycereol 0.2-0.6%, Polyethylene Glycol 2-6%, corrosion inhibiter 0.05-0.12%, chelating
Agent 0.01-0.03%, emulsifying agent 0.2-0.3%, surplus are distilled water.
Further, described corrosion inhibiter is mercaptobenzothiazoler.
Further, described chelating agen is sodium versenate or tetrasodium ethylenediamine tetraacetate.
Further, described emulsifying agent is alkoxide cyclohexanedimethanol.
Further, the ph value of described derusting cleaning liquid is 6.5-7.5, so will not damage the surface of metal structure,
When being formed in the metal structure and environmental friendliness, fireballing rust cleaning of rust cleaning.
Compared with prior art, the invention has the beneficial effects as follows:
First, present invention achieves U-shaped steel clod wash initial set, local shape change, clod wash essence become, deformed region control cold
But, the combination of finishing sizing, it is achieved that partial cross section's deformation of the Cold Bending of setting position is online with cold roll forming
Complete.
Second, present invention achieves the cooling of Cold Bending steel On-line Control computer heating control roll control, it is achieved material group
Knit the controlled of performance.
3rd, the variable cross-section U row steel that the present invention is prepared as preserves after cleaning with special derusting and cleaning agent, is possible not only to fast
Speed removes the rust on steel surface, and will not damage the surface of metal structure, the most harmless to environment.
Accompanying drawing explanation
Fig. 1 is rolling and clod wash mould schematic diagram；
Fig. 2 is clod wash mould schematic diagram；
Fig. 3 is embodiment Bridge 1 beam variable cross-section U-shaped product made from steel figure；
Fig. 4 is embodiment 2 construction steel structure variable cross-section U-shaped product made from steel figure.
Wherein, 1-rolling and clod wash mould, 2-clod wash mould, the U-shaped steel of 3-bridge variable cross-section, 4-construction steel structure variable cross-section
U-shaped steel.
Detailed description of the invention
Embodiment 1
The controlled rolling and controlled cooling of the U-shaped product made from steel of bridge variable cross-section and clod wash comprehensive shaping method, mainly comprise the steps that
1) slitting steel band enters forming frame by clamping and conveying device, and described steel thickness range is 8mm, under room temperature state,
Through the roll of one group of longitudinal arrangement, slitting steel band both sides are bent, make plate both sides produce bending angle, and, pressing board
The direction of motion posterior dress roller arrangement of material makes bending angle be gradually increased, until 40 °, makes just one-step forming U-shaped, it is achieved steel part cold
Curved initial set；
2) entering heating region, it is achieved control heating, mode of heating is superaudio sensing heating, and heating-up temperature is at 300 DEG C
Scope, installs attemperator between heating region and rolling mold, and width of heating is 50mm, and heated length is 200mm；
3) enter controlled rolling deformed area, implement controlled rolling system, rolling temperature control, drafts, deformation system, warm-rolling or
Hot rolling realizes shape change, and controlled rolling fixed point changes section configuration, increases including edge thickness or thinning and shape changes
Design attitude local thickness and alteration of form on change, section, synchronize to realize controlled rolling variable cross-section and clod wash precisive shaped, and bending angle reaches
72°；
4) entering control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, and rate of cooling is 10 DEG C/s, real
Existing material structure performance；
5) entering finishing shaping area, the sizing finishing machine formed by plain-barreled roll and side roller, including using pass aligning, the most curved adding
Recurvation finishing sizing molding, sizing amount is according to U-shaped steel bending radius everywhere and the difference of wall thickness, and in the range of 0.3mm, sizing is smart
Whole, tolerance can control within ± 0.25mm, it is ensured that precisely form and position tolerance, meets service precision requirement；
6) preserving after being cleaned by the variable cross-section U-shaped steel derusting cleaning liquid finally produced, described derusting cleaning liquid presses matter
Amount percentages, is mainly prepared from by following component: nickelous carbonate 1%, manganese nitrate 1%, stannous chloride 1%, citric acid
5%, methyl cellosolve 1%, butyl cellosolve 1%, thiodiglycol 0.3%, polyglycereol 0.2%, Polyethylene Glycol 2%, sulfydryl benzene
And thiazole 0.05%, sodium versenate 0.01%, alkoxide cyclohexanedimethanol 0.2%, surplus are distilled water, rust cleaning
The ph value of cleanout fluid is 6.5, so will not damage the surface of metal structure, when metal structure and environmental friendliness, the speed of rust cleaning
Formed in fast rust cleaning.
Embodiment 2
The controlled rolling and controlled cooling of the U-shaped product made from steel of construction steel structure variable cross-section and clod wash comprehensive shaping method, mainly include following step
Rapid:
1) slitting steel band enters forming frame by clamping and conveying device, and described steel thickness range is 8mm, under room temperature state,
Through the roll of one group of longitudinal arrangement, slitting steel band both sides are bent, make plate both sides produce bending angle, and, pressing board
The direction of motion posterior dress roller arrangement of material makes bending angle be gradually increased, until 50 °, makes just one-step forming U-shaped, it is achieved steel part cold
Curved initial set；
2) enter heating region, it is achieved control heating, mode of heating be superaudio sensing heating, fuel gas heating or
Frequency Induction Heating, heating-up temperature, 1050 DEG C of scopes, installs attemperator, heating width between heating region and rolling mold
Degree is 200mm, and heated length is 500mm；
3) enter controlled rolling deformed area, implement controlled rolling system, rolling temperature control, drafts, deformation system, warm-rolling or
Hot rolling realizes shape change, and controlled rolling fixed point changes section configuration, increases including edge thickness or thinning and shape changes
Design attitude local thickness and alteration of form on change, section, synchronize to realize controlled rolling variable cross-section and clod wash precisive shaped, and bending angle reaches
90°；
4) entering control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, and rate of cooling is 60 DEG C/s, real
Existing material structure performance；
5) entering finishing shaping area, the sizing finishing machine formed by plain-barreled roll and side roller, including using pass aligning, the most curved adding
Recurvation finishing sizing molding, sizing amount is according to U-shaped steel bending radius everywhere and the difference of wall thickness, and in the range of 0.45mm, sizing is smart
Whole, tolerance can control within ± 0.25mm, it is ensured that precisely form and position tolerance, meets service precision requirement；
6) preserving after being cleaned by the variable cross-section U-shaped steel derusting cleaning liquid finally produced, described derusting cleaning liquid presses matter
Amount percentages, is mainly prepared from by following component: nickelous carbonate 2%, manganese nitrate 2%, stannous chloride 3%, citric acid
8%, methyl cellosolve 1.5%, butyl cellosolve 1.5%, thiodiglycol 0.5%, polyglycereol 0.6%, Polyethylene Glycol 6%, mercapto
Base benzothiazole 0.12%, tetrasodium ethylenediamine tetraacetate 0.03%, alkoxide cyclohexanedimethanol 0.3%, surplus are distilled water,
The ph value of derusting cleaning liquid is 6.5-7.5, so will not damage the surface of metal structure, as metal structure and the environment friend of rust cleaning
Well, formed in fireballing rust cleaning.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. the controlled rolling and controlled cooling of the U-shaped steel of variable cross-section and clod wash comprehensive shaping method, it is characterised in that mainly include following step
Rapid:
1) slitting steel band enters forming frame, and described steel thickness range is 4～16mm, it is achieved the clod wash initial set of steel part；
2) entering heating region, it is achieved control heating, mode of heating is superaudio sensing heating, fuel gas heating or intermediate frequency
Sensing heating, width of heating is 20～200mm, and heated length is 20～500mm；
3) entering controlled rolling deformed area, controlled rolling fixed point changes section configuration, increases including edge thickness or thinning and shape changes
Design attitude local thickness and alteration of form on change, section, controlled rolling variable cross-section and clod wash precisive shaped are that same frame completes or intersects
Frame completes, and synchronizes to realize controlled rolling variable cross-section and clod wash precisive shaped；
4) entering control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, it is achieved material structure performance；
5) finishing shaping area is entered, including using pass aligning, the most curved adding recurvation finishing sizing molding, it is ensured that precisely morpheme is public
Difference, it is ensured that finished size is stable.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 1 and clod wash comprehensive shaping method, its feature exists
In, mainly comprise the steps that
1) slitting steel band enters forming frame by clamping and conveying device, and described steel thickness range is 4-16mm, under room temperature state, and warp
Cross the roll of one group of longitudinal arrangement, slitting steel band both sides are bent, make plate both sides produce bending angle, and, by plate
The direction of motion posterior dress roller arrangement make bending angle be gradually increased, bend to set angle (30-50 °), make just one-step forming U
Type, it is achieved the clod wash initial set of steel part；
2) entering heating region, it is achieved control heating, mode of heating is superaudio sensing heating, fuel gas heating or intermediate frequency
Sensing heating, heating-up temperature, 300～1050 DEG C of scopes, installs attemperator, heating between heating region and rolling mold
Width is 20～200mm, and heated length is 20～500mm；
3) enter controlled rolling deformed area, implement controlled rolling system, rolling temperature control, drafts, deformation system, warm-rolling or hot rolling
Realizing shape change, controlled rolling fixed point changes section configuration, increases including edge thickness or thinning and alteration of form, disconnected
Mian Shang design attitude local thickness and alteration of form, synchronize to realize controlled rolling variable cross-section and clod wash precisive shaped (bend to design angle
60-90°)；
4) entering and control cooling zone, the type of cooling uses water-cooled, mist cold or air cooling, rate of cooling be 10 DEG C/s～100 DEG C/
S, it is achieved material structure performance；
5) entering finishing shaping area, the sizing finishing machine formed by plain-barreled roll and side roller, including using pass aligning, the most curved adding recurvation
Finishing sizing molding, sizing amount is according to U-shaped steel bending radius everywhere and the difference of wall thickness, sizing in the range of 0.3～0.45mm
Finishing, tolerance can control within ± 0.25mm, it is ensured that precisely form and position tolerance, meets service precision requirement.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 1 or 2 and clod wash comprehensive shaping method, its feature
It is, preserves after the variable cross-section U-shaped steel derusting cleaning liquid finally produced is cleaned.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 3 and clod wash comprehensive shaping method, its feature exists
In, described derusting cleaning liquid by mass percentage, is mainly prepared from by following component: nickelous carbonate 1-2%, manganese nitrate 1-
2%, stannous chloride 1-3%, citric acid 5-8%, methyl cellosolve 1-1.5, butyl cellosolve 1-1.5%, thiodiglycol 0.3-
0.5%, polyglycereol 0.2-0.6%, Polyethylene Glycol 2-6%, corrosion inhibiter 0.05-0.12%, chelating agen 0.01-0.03%, emulsifying
Agent 0.2-0.3%, surplus are distilled water.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 4 and clod wash comprehensive shaping method, its feature exists
In, described corrosion inhibiter is mercaptobenzothiazoler.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 4 and clod wash comprehensive shaping method, its feature exists
In, described chelating agen is sodium versenate or tetrasodium ethylenediamine tetraacetate.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 4 and clod wash comprehensive shaping method, its feature exists
In, described emulsifying agent is alkoxide cyclohexanedimethanol.
The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section the most as claimed in claim 4 and clod wash comprehensive shaping method, its feature exists
In, ph value is 6.5-7.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525197.XA CN106180460B (en) | 2016-07-05 | 2016-07-05 | Controlled rolling, controlled cooling and cold bending comprehensive forming method for variable-section U-shaped steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525197.XA CN106180460B (en) | 2016-07-05 | 2016-07-05 | Controlled rolling, controlled cooling and cold bending comprehensive forming method for variable-section U-shaped steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106180460A true CN106180460A (en) | 2016-12-07 |
| CN106180460B CN106180460B (en) | 2017-05-17 |
Family
ID=57466305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610525197.XA Expired - Fee Related CN106180460B (en) | 2016-07-05 | 2016-07-05 | Controlled rolling, controlled cooling and cold bending comprehensive forming method for variable-section U-shaped steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106180460B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570622A (en) * | 2017-09-20 | 2018-01-12 | 江苏同力机械有限公司 | A kind of urgent guide rail and its bending and molding method |
| CN110116294A (en) * | 2018-02-06 | 2019-08-13 | 朱进军 | Steel structure wall moulding process and its U-shaped steel molding machine |
| CN114570800A (en) * | 2022-04-07 | 2022-06-03 | 南京图信新材料科技有限公司 | Cold rolling forming machine and production and manufacturing method of U-shaped suspension arm plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6250024A (en) * | 1985-08-29 | 1987-03-04 | Natl House Ind Co Ltd | Production of lightweight shape steel |
| JP2005313178A (en) * | 2004-04-26 | 2005-11-10 | Tanakku:Kk | Method for manufacturing long size member and manufacturing apparatus used for it |
| CN101954396A (en) * | 2010-05-31 | 2011-01-26 | 南京万汇钢板桩有限公司 | Roll type continuous cold-bending forming fabricating method for U-shaped steel sheet pile |
| CN102672014A (en) * | 2012-05-05 | 2012-09-19 | 北京科技大学 | Method for producing cold-formed steel of U-shaped davit arm |
| CN102926320A (en) * | 2012-11-19 | 2013-02-13 | 武汉钢铁(集团)公司 | U-shaped variable-cross-section hot rolling reinforcing rib for bridge and production process thereof |
| CN204620900U (en) * | 2015-05-05 | 2015-09-09 | 北京科技大学 | The U-shaped rib hot-rolling pressing formation device of a kind of bridge |
-
2016
- 2016-07-05 CN CN201610525197.XA patent/CN106180460B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6250024A (en) * | 1985-08-29 | 1987-03-04 | Natl House Ind Co Ltd | Production of lightweight shape steel |
| JP2005313178A (en) * | 2004-04-26 | 2005-11-10 | Tanakku:Kk | Method for manufacturing long size member and manufacturing apparatus used for it |
| CN101954396A (en) * | 2010-05-31 | 2011-01-26 | 南京万汇钢板桩有限公司 | Roll type continuous cold-bending forming fabricating method for U-shaped steel sheet pile |
| CN102672014A (en) * | 2012-05-05 | 2012-09-19 | 北京科技大学 | Method for producing cold-formed steel of U-shaped davit arm |
| CN102926320A (en) * | 2012-11-19 | 2013-02-13 | 武汉钢铁(集团)公司 | U-shaped variable-cross-section hot rolling reinforcing rib for bridge and production process thereof |
| CN204620900U (en) * | 2015-05-05 | 2015-09-09 | 北京科技大学 | The U-shaped rib hot-rolling pressing formation device of a kind of bridge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570622A (en) * | 2017-09-20 | 2018-01-12 | 江苏同力机械有限公司 | A kind of urgent guide rail and its bending and molding method |
| CN107570622B (en) * | 2017-09-20 | 2023-11-17 | 江苏同力日升机械股份有限公司 | Emergency guide rail and bending forming method thereof |
| CN110116294A (en) * | 2018-02-06 | 2019-08-13 | 朱进军 | Steel structure wall moulding process and its U-shaped steel molding machine |
| CN114570800A (en) * | 2022-04-07 | 2022-06-03 | 南京图信新材料科技有限公司 | Cold rolling forming machine and production and manufacturing method of U-shaped suspension arm plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106180460B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106180460A (en) | The controlled rolling and controlled cooling of the U-shaped steel of a kind of variable cross-section and clod wash comprehensive shaping method | |
| CN102886381B (en) | Thick plate rolling method | |
| CN108480415A (en) | A kind of online roll-in thermoforming process of hot plate/band and its application | |
| CN101954396B (en) | Roll type continuous cold-bending forming fabricating method for U-shaped steel sheet pile | |
| CN103302104A (en) | Method for manufacturing hot rolled silicon steel | |
| CN103273272B (en) | Forging-and-rolling compounded forming method for comprehensively promoting internal and external quality of wide and thick plate blanks | |
| CN105478524A (en) | Method for manufacturing duplex stainless steel coiled tubing | |
| CN102240715B (en) | Forming process for special C-shaped channel steel | |
| CN104368600A (en) | Method for preparing titanium steel cladding board with thin coating | |
| CN102481616B (en) | Curved closed-section structural component and manufacture method thereof | |
| CN101954397A (en) | Manufacture method of Z-shaped steel sheet pile through continuous cold roll forming | |
| CN102189158A (en) | Process for bending X100 steel grade large-caliber bent pipe through intermediate frequency induction heating | |
| CN106624610B (en) | A kind of easy manufacturing method for welding deposited side stainless steel clad plate | |
| CN102151724B (en) | Pattern design method of straight-seam welded pipe cage-type forming process | |
| CN104971959A (en) | High-strength closed sectional material hot roll forming process | |
| CN102632086B (en) | Method for controlling side waves of hot rolling strip steel | |
| CN102926320B (en) | The U-shaped ribs of bridge variable cross-section hot rolling and production technology thereof | |
| Choi et al. | Temperature distribution and thermal stresses in various conditions of moving heating source during line heating process | |
| CN101168224A (en) | Heating and forming method for cold bending sectional steel and cold bending sectional steel produced by the same | |
| CN101574714B (en) | Method for bending and processing U rib | |
| CN204620900U (en) | The U-shaped rib hot-rolling pressing formation device of a kind of bridge | |
| CN107427874B (en) | The manufacturing method and H profile steel product of H profile steel | |
| Kampuš et al. | Deep drawing of tailored blanks without a blankholder | |
| CN105855315A (en) | Production method for steel plate | |
| CN202006238U (en) | Mould for pre-flanging machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20190705 |