CN109985960A - Channel steel forming method - Google Patents
Channel steel forming method Download PDFInfo
- Publication number
- CN109985960A CN109985960A CN201711477218.6A CN201711477218A CN109985960A CN 109985960 A CN109985960 A CN 109985960A CN 201711477218 A CN201711477218 A CN 201711477218A CN 109985960 A CN109985960 A CN 109985960A
- Authority
- CN
- China
- Prior art keywords
- channel steel
- steel
- dovetail
- strip
- forming
- 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
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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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Metal Rolling (AREA)
Abstract
The present invention proposes a kind of channel steel moulding process, belongs to steel material rolling and forming technology field.Channel steel moulding process of the present invention includes: that strip conveying charging → smoothing → micro- → local heating → dovetail edge forming → cooling → is rolled into step by step → is straightened → blanking.The advantage of the invention is that can get the channel steel with dovetail trough rim using the molding technique of local heating and step by step continuous rolling using when narrowband steel making channel steel, and it can realize that strip conveying and cutting agency move synchronously.Energy saving, the high production efficiency using present invention process manufacture channel steel, channel steel shape, the dimensional accuracy of production are high, and bearing capacity is strong.
Description
Technical field
The present invention relates to a kind of channel steel forming methods, belong to steel material rolling material molding technology field.
Background technique
Built-in fitting is the component installed (bury) in advance in concealed work, is the component and fitting disposed in structure casting,
For building overlap joint when superstructure, so that the installation of field engineering Equipment Foundations is fixed.It is commonly passed in building field
System built-in fitting, generally frame structure framework, its main feature is that metal structure effective rate of utilization is low, weight is big, erroneous for installation.It is close several
Nian Lai, with the continuous improvement of design level and building ability, building field especially elementary item construction field mentions built-in fitting
Higher requirement is gone out.Channel steel is in recent years gradually in the fashioned iron of construction and installation field use, anchor connection frequently with normal
Use the C U-steel of certain specification as connection floor, cooperation T-bolt uses.
For the manufacturing process of cold-rolled steel because using single multiple tracks cold rolling cold bending process, trough rim is identical with strip raw material plate thickness, makes
Big at the fit-up gap between built-in fitting T-bolt and connecting bottom board, steel sole plate intensity is low, easy to crack, is normally only used for static load
Anchoring under the conditions of lotus.Chinese patent (application number: provides in 200910214310.2) and a kind of produces big width U-type groove steel
Cold-bending molding technology and production line, it is that plate generation plastic deformation obtains U-type groove steel using multiple tracks clod wash, and what it was obtained is
Universal U-type groove steel is not suitable for the fastening or anchoring in building curtain wall or other fields.Chinese patent (Authorization Notice No.: CN
A kind of U-type groove steel cold bending molding equipment is provided in 201320570Y), BROAD SUMMARY is to devise that difference can be produced
The U-type groove steel of length, width, no flanging at the U-type groove steel tank mouth produced.The forming process of hot-rolled steel is a fire-bar
The operation of rolling under part, heating can improve the plasticity of plate, and dovetail groove edge forming is easy, and shaping and deformation position stress collection is medium and small,
Slot intensity is high, and notch flange has swallowtail shape feature, and the fit-up gap between T-bolt and connecting bottom board is small, with small vibration, even
Intensity height is connect, suitable for the anchor connection under the conditions of a variety of situations especially dynamic loading.As German HALFEN company uses hot rolling
Steel is successfully applied to a variety of building fields as connecting bottom board, the hot-rolled steel channel built-in fitting of exploitation.Chinese patent (Granted publication:
CN 2621093Y) in provide a kind of channel steel of hot rolling continuous hot bending, it describes the planform of channel steel in detail, to channel steel
Hot rolling, the detailed machining process of hot bending do not describe, but at hot-rolled steel channel notch involved in its invention have dovetail groove
Side, C channel steel intensity are easily guaranteed that, are very suitable for the fastening and anchoring of each building field.But hot-rolled steel process needs
Heating, causes that energy consumption is high, at high cost, operating environment is poor.The process of cold rolling or cold bending process does not need to heat, but material
Plastic deformation degree is big, and the stress of channel steel is concentrated greatly, and is difficult to obtain dovetail trough rim.So research and development do not pass through hot rolling, at
Type process material plastic deformation is uniformly, at low cost, and can be easy to get the channel steel moulding process with dovetail trough rim is very intentionally
The project of justice.
Summary of the invention
The purpose of the present invention is to overcome the deficiency in the prior art, invents a kind of using local heating and roll-forming step by step
Method prepares the channel steel with dovetail trough rim.Using the method for the present invention produce channel steel high production efficiency, simple process, acquisition
Channel steel special bearing capacity is strong, and service life is high, and production cost is low.
Another goal of the invention of the invention is to provide a kind of high cost hot-working work for not using hot rolling or hot investment casting
Process is facilitated using the method for local heating and multiple tracks roll-forming and is produced the dedicated slot with dovetail trough rim cheaply
Steel.
The present invention is achieved in the following ways:
The moulding process flow process of channel steel special of the present invention are as follows: strip conveys charging → smoothing → minute-pressure → local heating → dovetail side
Molding → cooling → cold roll forming → alignment → blanking step by step.The positioning and limit of strip conveying charging are lain on one's side roller control by a pair
System；Smoothing is completed by edger roll roller above and below two pairs of rollers, and the gap between upper and lower roller can be according to the thickness of strip and channel steel
Size requires adjustable.Minute-pressure process is completed by a pair of of roller, and small plastic deformation occurs for strip side after strip minute-pressure.After minute-pressure
Strip enters localized heating zones, and strip obtains dovetail trough rim after a pair of of thermoforming roller roll-in later.After strip thermoforming
It is cooling using tap water into cooling process, in favor of the precision and size of channel steel after the subsequent multiple tracks continuous rolling of guarantee.By
Grade cold roll forming process completes the U-type groove of strip and the interior bending and molding of dovetail trough rim using at least 12 roll-ins；Wherein at least 7
Road roll-in makes the strip with dovetail side fade to bent angle by plane, then becomes 90 ° of U-type grooves；Wherein at least 5 roll-ins make to have
It is curved in the U-type groove two sides on dovetail side to fade to slot.Molding channel steel is straightened through at least 2 roll-ins subsequently into blanking procedure.Under
Cutting agency travel speed is synchronous with the charging rate of strip in material process, can realize online blanking according to the length requirement of channel steel.
Present invention employs local heating and multiple tracks, roll-forming prepares channel steel, the professional channel steel dimensional accuracy of preparation step by step
It is easily guaranteed that, appearance impulse- free robustness.
The present invention is in cold roll forming process step by step using the interior bending of at least U-type groove of 12 roll-in strips and dovetail trough rim
Molding.Bent angle is faded to by plane by least 7 roll-in strips are longitudinal, then becomes 90 ° of U-type grooves；Roller upper roller, lower roller edge
Gap between the variation of angle and shape and edge-on roller changes to guarantee strip longitudinal direction parallel angle by 0 °~90 ° gradually
Become.Preceding processes U-type groove obtained is faded into slot using at least 5 roll-ins, roller upper roller, lower roll shape and gap become
To realize, bending becomes slot in U-type groove two sides for gap positioning between change and edge-on roller.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Attached ribbon steel width is manufactured using present invention process to be not fixed, and can require to send out according to the dimensions of channel steel special
The variation of changing, size does in the gap between the relevant device central roll size of wheel for requiring present invention process and roller accordingly
Adjustment.Subsidiary steel can be ordered from steel manufacturer, also commercially available standard strip voluntarily blanking.In order to guarantee that channel steel manufactured
The automatic operation of journey, meaning strip is lain on one's side roller limit through a pair when charging.Pass through two pairs of schools by strip 2 after roller limit roller of lying on one's side
Plain-barreled roll smoothing.(minute-pressure is carried out by a pair of of roller after strip smoothing.Upper roll wheel is driving wheel when minute-pressure, and lower roll wheel is from driven
Wheel；It is provided with smaller acute angle at upper roll wheel roll surface both side edges, so that a small acute angle bevel is generated at upper roll wheel roll surface lateral border, it is micro-
Small plastic deformation occurs for strip side after pressure.Strip carries out local heating after minute-pressure, and strip is passed through to thermoforming roller roller later
Press thermoforming；Dovetail trough rim is obtained after thermoforming.For the final molding precision and size for guaranteeing channel steel, cooling is entered after thermoforming
Then process obtains final channel steel through multiple tracks chilling roller is molded.Cooling process is cooling using water pipe fountain tap water.It is cooling
Afterwards, by multiple tracks roll-in, the strip with dovetail side clod wash U-type groove and slot step by step.Finally, molding channel steel is by least road school
Straight process is to obtain the channel steel for meeting shape specification requirement.Later, it is realized in blanking procedure according to the length requirement of channel steel
Line blanking.
Upper roller in above-mentioned each road manufacturing procedure and lower roll be it is independently existing, although all deserving to be called roller and lower roll,
The structure of each pair of roller is different.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to the present invention
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, described in above embodiments and description
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also has various change
And improvement, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (2)
1. a kind of channel steel forming method, it is characterized in that: process flow are as follows: strip conveys charging → smoothing → minute-pressure → local heating
→ dovetail edge forming → cooling → cold roll forming → alignment → blanking step by step；
Wherein: generating faint plastic deformation in band steel edge two sides after minute-pressure process；Dovetail side after local heating process at
Type process obtains the dovetail trough rim at channel steel notch；Cold roll forming process is by the strip longitudinal direction roll bending with dovetail side at U step by step
Then type trough with straight angle will curve channel steel in the top and side of U-shaped trough with straight angle.
2. channel steel forming method according to claim 1, it is characterized in that: the forming process strip travel speed of channel steel is under
Expect that mechanism travel speed is synchronous, channel steel forming method according to claim 1 or 2, it is characterized in that: can be according to the length of channel steel
It is required that realizing online blanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477218.6A CN109985960A (en) | 2017-12-29 | 2017-12-29 | Channel steel forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477218.6A CN109985960A (en) | 2017-12-29 | 2017-12-29 | Channel steel forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109985960A true CN109985960A (en) | 2019-07-09 |
Family
ID=67109650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711477218.6A Pending CN109985960A (en) | 2017-12-29 | 2017-12-29 | Channel steel forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109985960A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814316A (en) * | 2020-06-18 | 2021-12-21 | 宝山钢铁股份有限公司 | Sheet material rolling process and device thereof |
-
2017
- 2017-12-29 CN CN201711477218.6A patent/CN109985960A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814316A (en) * | 2020-06-18 | 2021-12-21 | 宝山钢铁股份有限公司 | Sheet material rolling process and device thereof |
| CN113814316B (en) * | 2020-06-18 | 2023-12-12 | 宝山钢铁股份有限公司 | Plate rolling process and device thereof |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |