CN104826877A - Air-cooled/water-cooled rolling type slow cooling section double-sided guide slot - Google Patents
Air-cooled/water-cooled rolling type slow cooling section double-sided guide slot Download PDFInfo
- Publication number
- CN104826877A CN104826877A CN201510209700.6A CN201510209700A CN104826877A CN 104826877 A CN104826877 A CN 104826877A CN 201510209700 A CN201510209700 A CN 201510209700A CN 104826877 A CN104826877 A CN 104826877A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- water channel
- guide slot
- guide groove
- cooled
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
The invention provides an air-cooled/water-cooled rolling type slow cooling section double-sided guide slot, relating to the field of metallurgical steel rolling. The guide slot comprises a guide slot body, wherein the guide slot body is provided with a convolutional cooling water channel; the guide slot body is composed of a lower guide slot body and an upper guide slot body; the convolutional cooling water channel is composed of a cooling water channel A and a cooling water channel B; the cooling water channel A is arranged in the lower guide slot body; the cooling water channel B is arranged in the upper guide slot body; the air-cooled/water-cooled rolling type slow cooling section double-sided guide slot also comprises a gas nozzle which is formed by combining a lower gas nozzle and an upper gas nozzle; the lower gas nozzle is provided with a lower guide roller; the upper gas nozzle is provided with an upper guide roller. According to the air-cooled/water-cooled rolling type slow cooling section double-sided guide slot provided by the invention, by the arrangement of the convolutional cooling water channel on the guide slot body, the temperature of the guide slot body is reduced; by the arrangement of the guide rollers, the chattering phenomenon and the movement resistance in a running process of a rolled piece are avoided, so that the rolled piece can move easily and stably; the rolled piece is cooled by gas flow, and meanwhile, gas generates a pushing force for running the rolled piece, so that the rolled piece on the guide rollers runs stably and easily.
Description
Technical field
The present invention relates to metallurgical steel rolling field, particularly relate to the two-sided guide groove in a kind of wind water cooling roller slow cooling section.
Background technology
Two-sided guide groove is indispensable important process element in process for cooling on high-speed wire production line.At present at home and abroad on high-speed wire production line use two-sided guide groove technology still to rest in traditional design concept.
As shown in Figure 1:
1: body
On whole piece roll line, between cooling device and before Laying head, be separately installed with the slow cooling section (recovery section) of dozens of guide groove composition.According to existing guide groove technical concept, guide groove only plays the guide effect of workpiece motion s.Along with high-performance, the production development of high-strength alloy shock resisting steel, existing guide groove technical concept can not meet the requirement of modern steel rolling process for cooling technical development.Because:
Process for cooling and phase transformation theory:
Process for cooling passes into cooling water to cooling water tank, rapidly rolled piece is cooled to theoretical phase transition temperature, obtains optimal sorbite with the shortest time and have the austenite envisioning cold change, completes the topmost phase transformation of whole cooling procedure prepare with this.Obtain rolled piece phase transition temperature technique to carry out in one section of water-cooled, one section of air cooling program.By water-cooled, rolled piece surface temperature is declined, allow rolled piece surface temperature go up and then water-cooled in slow cooling section (recovery section), rolled piece heart portion temperature is declined continuously, and in air cooling, (air-cooled line) realizes isothermal transformation.
Process for cooling provides necessary phase transition temperature for phase transformation, is the important prerequisite improving metal structure mechanical property.Organizing that the tissue that desirable phase transition temperature obtains and patenting obtain is close.Rolled piece is cooled to phase transition temperature by water-cooled district after going out roller immediately, and now, the effect of work hardening is partly retained, pearlite and ferritic crystallization nuclei when the austenite crystal boundary be broken becomes phase transformation, thus makes pearlite and ferrite not thick.After this slow down cooling velocity, makes its similar isothermal transformation, thus obtain sorbite, residual ferrite and lamellar pearlite tissue.
The metal structure that rational phase transition temperature obtains is between patenting and air normalized structure.In tissue except pearlite, also containing a small amount of ferrite and most of sorbite.When phosphorus content increases, ferritic content declines and sorbite percentage increases.For hypo eutectoid carbon steel, ferritic structure is fine and smooth, and plasticity is good.For high-carbon steel, avoid producing net carbide structure, keep good mechanical performance and impact flexibility.
In process for cooling, the function born of guide groove is except the correct safe operation guiding rolled piece, and after more importantly playing water-cooled, the heart portion temperature of rolled piece obtains effectively transmitting rapidly to rolled piece surface by guide groove, crystallization of refinement particle, eliminates the effect of internal stress within the unit interval.Rolled piece obtains declining in control range by the water-cooled district surface temperature in each stage, and rolled piece heart portion temperature is appointed and is so in the condition of high temperature, needing within the unit interval of slow cooling section, allow heart portion temperature transmit rapidly to surface makes surface temperature be able to abundant rise, rolled piece heart portion temperature is made to obtain declining effectively continuously in control range again after water-cooled, rational phase transition temperature and the metal structure after phase transformation between patenting and air normalizing is obtained with this, make product keep good mechanical performance and impact flexibility, effectively improve the mechanical property of product.
1.1 in existing guide groove technology, temperature higher than the rolled piece of 950 ° under the state of continuous rolling by guide groove time, due to the effect of heat trnasfer, a large amount of heat retention makes guide groove temperature trend towards rolled piece temperature (guide groove temperature is outwards reduced gradually by heart portion) on guide groove.The condition of high temperature in guide groove heart portion hinders guide groove body and causes rolled piece heart portion temperature can not to transmit rapidly to surface to the absorption of rolled piece surface temperature, and when causing rolled piece again to cool because rolled piece surface temperature can not get ging up rapidly, heart portion temperature can not get effective decline.By the impact of existing guide groove technical concept, many steel rolling production-lines are only emphasized merely the cooling capacity of water-cooled section and have ignored the meaning that slow cooling recovers section, slow cooling recovers the too short of the Design of length of section, rolled piece by can not get ging up rapidly, effectively in unit interval heart portion temperature during slow cooling section, constrains the raising of the elimination of material internal stress, the refinement of crystalline particle and product physical property.
1.2: after rolled piece enters guide groove, run in the state of > 65M/S speed.The motion of rolled piece with jitter motion form objective reality, rubs so inevitably guide hole wall to produce with guide groove and cause product surface to damage (also referred to as pulling).Especially produce the higher product of surface quality requirements, the friction phenomenon in motion can not reach the requirement ensureing product surface quality.
1.3: because the running status and inevitably producing with guide groove bullport of rolled piece shake rubs, cause the resistance of motion that increases in rolled piece running and produce and pile steel accident.
1.4: bullport easily produces wearing and tearing because rubbing, cause entirety to scrap when using after bullport wearing and tearing, increase production cost.
Summary of the invention
The object of the present invention is to provide the two-sided guide groove in a kind of wind water cooling roller slow cooling section, to solve the problems of the technologies described above.
Technical problem to be solved by this invention realizes by the following technical solutions:
The two-sided guide groove in a kind of wind water cooling roller slow cooling section, it is characterized in that: comprise guide groove body, guide groove body is provided with convolution cooling water channel, described guide groove body is made up of lower guide channel body and upper rail body, described convolution cooling water channel is made up of cooling water channel A and cooling water channel B, described cooling water channel A is opened in lower guide channel body, described cooling water channel B is opened in upper rail body, the left end of described cooling water channel A and cooling water channel B is respectively arranged with the first Luo Saikong, the first Luo Sai is provided with in first Luo Saikong, the right-hand member of described cooling water channel A and cooling water channel B is respectively arranged with the second Luo Saikong, the second Luo Sai is provided with in second Luo Saikong, described cooling water channel A is communicated with the right-hand member of cooling water channel B and forms the cooling water channel that circles round,
Also comprise gas jets, gas jets and guide groove body are bolted, described gas jets is involuted by lower gas jets and upper gas jets, described lower gas jets is provided with lower guide roll, described upper gas jets is provided with deflector roll, described lower guide roll and upper deflector roll are oppositely arranged on guide groove both sides and form a pair deflector roll cooperating, the roll surface of lower guide roll and upper deflector roll are provided with deflector roll pass, deflector roll pass to be angle the be V-type groove of 120 °.
Described lower guide roll is arranged in lower gas jets by eccentric shaft and eccentric bushing, and described upper deflector roll is arranged in upper gas jets by eccentric shaft and eccentric bushing.
Described gas jets is provided with tapered injection air flue.
The technology of the present invention is according to Water cooling technique and the theory required for phase transformation theory, guide groove body is provided with convolution cooling water channel, cooling water enters by lower guide channel body the cooling water channel B that cooling water channel A proceeds to upper rail body, discharges after carrying out heat exchange with the heat on guide groove body.The cooling water of discharging takes away heats a large amount of on guide groove body, guide groove body temperature is in all the time and trends towards normal temperature state.The guide groove body trending towards normal temperature state is conducive to a large amount of absorptions to rolled piece surface temperature, rolled piece heart portion temperature is impelled to transmit rapidly, in a large number to rolled piece surface, the effect that rolled piece heart portion temperature declines effectively is continuously reached when carrying out again water-cooling process, necessary condition is provided for obtaining desirable phase transition temperature, play recovery section function truly, for fully improving product mechanics performance important function.
Compressed air enters gas jets by lower guide channel, runs equal direction carry out air and purge and carry out Air flow to rolled piece along tapered injection air flue to guide groove pilot hole and rolled piece.Rolled piece enters guide groove, and friction held stationary can be avoided under deflector roll effect to run.
Compressed air enters the reduction along with tapered injection airway diameter after gas jets, and its air pressure, flow velocity are able to several times direct ratio and increase (flow velocity > 200M/S, air pressure, flow relocity calculation are slightly).Run with rolled piece air pressure that equal direction increases, the gas of flow velocity create the motive force run rolled piece and the rolled piece be on deflector roll run steadily, easily.Air flow not only can make the decline of guide groove pilot hole surface temperature contribute to rolled piece surface temperature, and accelerates rolled piece cooling velocity.Under the environment accelerating rolled piece Air flow speed, make rolled piece recover section in slow cooling and obtain similar air normalized treatment technique.The metal structure crystalline particle of material is fined, the physical properties such as tensile strength, yield strength, impact flexibility improve, thering is provided necessary condition for obtaining desirable phase transition temperature, fully raising product physical property, having played the truly important function of slow cooling recovery section function.
After rolled piece enters guide groove bullport, do the effect of rolling movement and deflector roll pass at deflector roll under, avoid the jitter phenomenon in rolled piece running and the resistance of motion, the motion of rolled piece is become easily, steadily.Run due in the pass that rolled piece is in deflector roll, overcome rolled piece and pilot hole and produce and rub, thus the surface damage avoiding product to cause because of friction, ensure that the surface quality of product.
Spacing between upper lower guide roll can according to rolled piece specification and actual needs adjustment.Set-up procedure is: unclamp locking nut and fastening bolt, according to rolled piece specification and actual needs eccentric rotation axis, until tighten locking nut and fastening bolt again after reaching requirement.When using guide groove B face pilot hole, some for eccentric shaft turns angles can be carried out the adjustment of deflector roll spacing, the need of production of plurality of specifications rolled piece can be met.When deflector roll may wear to certain, guide groove body still can continue to use, and only need change rolling mechanism correlated parts, extend the service life of guide groove, reduce production cost.
The invention has the beneficial effects as follows:
The present invention will reduce the temperature of guide groove body by arranging convolution cooling water channel on guide groove body, guide groove body temperature is in all the time and trends towards normal temperature state, be beneficial to a large amount of absorptions to rolled piece surface temperature, rolled piece heart portion temperature is impelled to transmit rapidly, in a large number to rolled piece surface, the effect that rolled piece heart portion temperature declines effectively is continuously reached when carrying out again water-cooling process, thering is provided necessary condition for obtaining desirable phase transition temperature, being beneficial to and improving product mechanical property;
The present invention, also by arranging deflector roll, avoids the jitter phenomenon in rolled piece running and the resistance of motion, makes workpiece motion s easily, steadily.Avoid the surface damage that product causes because of friction, ensure that the surface quality of product;
By air-flow, rolled piece is cooled, simultaneously gas create motive force that rolled piece is run and the rolled piece be on deflector roll is run steadily, easily.
Accompanying drawing explanation
Fig. 1 is the front view of existing structure;
Fig. 2 is the top view of existing structure;
Fig. 3 is the left view of existing structure;
Fig. 4 is structural representation of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiments and the drawings, set forth the present invention further, but following embodiment being only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiment, all belong to protection scope of the present invention.
As shown in Figure 4, the two-sided guide groove in a kind of wind water cooling roller slow cooling section, comprise guide groove body, guide groove body is provided with convolution cooling water channel, guide groove body is made up of lower guide channel body 9 and upper rail body 5, convolution cooling water channel is made up of cooling water channel A 10 and cooling water channel B 6, cooling water channel A 10 is opened in lower guide channel body 9, cooling water channel B 6 is opened in upper rail body 5, the left end of cooling water channel A 10 and cooling water channel B 6 is respectively arranged with the first Luo Saikong, the first Luo Sai is provided with in first Luo Saikong, the right-hand member of cooling water channel A 10 and cooling water channel B 6 is respectively arranged with the second Luo Saikong, the second Luo Sai is provided with in second Luo Saikong, the right-hand member of cooling water channel A 10 and cooling water channel B 6 is communicated with by the second Luo Saikong and forms the cooling water channel that circles round.
Cooling water enters by lower guide channel body 9 the cooling water channel B6 that cooling water channel A 10 proceeds to upper rail body 5, discharges after carrying out heat exchange with the heat on guide groove body.
Also comprise gas jets, gas jets and guide groove body are bolted, gas jets is involuted by lower gas jets 7 and upper gas jets 2, lower gas jets 7 is provided with lower guide roll 8, upper gas jets 2 is provided with deflector roll 3, lower guide roll 8 and upper deflector roll 3 are oppositely arranged on guide groove both sides and form a pair deflector roll cooperating, the roll surface of lower guide roll 8 and upper deflector roll 3 are provided with deflector roll pass, deflector roll pass to be angle the be V-type groove of 120 °.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description is only preference of the present invention; be not used for limiting the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. the two-sided guide groove in wind water cooling roller slow cooling section, it is characterized in that: comprise guide groove body, guide groove body is provided with convolution cooling water channel, described guide groove body is made up of lower guide channel body and upper rail body, described convolution cooling water channel is made up of cooling water channel A and cooling water channel B, described cooling water channel A is opened in lower guide channel body, described cooling water channel B is opened in upper rail body, the left end of described cooling water channel A and cooling water channel B is respectively arranged with the first Luo Saikong, the first Luo Sai is provided with in first Luo Saikong, the right-hand member of described cooling water channel A and cooling water channel B is respectively arranged with the second Luo Saikong, the second Luo Sai is provided with in second Luo Saikong, described cooling water channel A is communicated with the right-hand member of cooling water channel B and forms the cooling water channel that circles round,
Also comprise gas jets, gas jets and guide groove body are bolted, described gas jets is involuted by lower gas jets and upper gas jets, described lower gas jets is provided with lower guide roll, described upper gas jets is provided with deflector roll, described lower guide roll and upper deflector roll are oppositely arranged on guide groove both sides and form a pair deflector roll cooperating, the roll surface of lower guide roll and upper deflector roll are provided with deflector roll pass, deflector roll pass to be angle the be V-type groove of 120 °.
2. the two-sided guide groove in wind water cooling roller slow cooling section according to claim 1, it is characterized in that: described lower guide roll is arranged in lower gas jets by eccentric shaft and eccentric bushing, described upper deflector roll is arranged in upper gas jets by eccentric shaft and eccentric bushing.
3. the two-sided guide groove in wind water cooling roller slow cooling section according to claim 1, is characterized in that: described gas jets is provided with tapered injection air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209700.6A CN104826877B (en) | 2015-04-24 | 2015-04-24 | A kind of two-sided guide groove in wind water cooling roller slow cooling section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209700.6A CN104826877B (en) | 2015-04-24 | 2015-04-24 | A kind of two-sided guide groove in wind water cooling roller slow cooling section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104826877A true CN104826877A (en) | 2015-08-12 |
| CN104826877B CN104826877B (en) | 2018-03-27 |
Family
ID=53805279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209700.6A Expired - Fee Related CN104826877B (en) | 2015-04-24 | 2015-04-24 | A kind of two-sided guide groove in wind water cooling roller slow cooling section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104826877B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234362A (en) * | 2015-10-27 | 2016-01-13 | 南京钢铁股份有限公司 | Anti-deformation foot roll combination device for sector section of large square blank and application method of anti-deformation foot roll combination device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1012151A (en) * | 1962-06-18 | 1965-12-08 | Dorman Long Steel Ltd | Improvements in or relating to entry guides for rolling mills |
| CN201020479Y (en) * | 2007-02-16 | 2008-02-13 | 宝山钢铁股份有限公司 | Wire mill entrance slide guiding device |
| CN101773943A (en) * | 2010-01-08 | 2010-07-14 | 山东西王特钢有限公司 | Device for preventing deformed bars from bending |
| CN203437425U (en) * | 2013-08-10 | 2014-02-19 | 马鞍山市方圆材料工程有限公司 | Water cooling outlet guide assembly |
| CN204018386U (en) * | 2014-08-06 | 2014-12-17 | 马鞍山市麦立机械制造有限公司 | The guider of rolling high speed wire stock guiding channel |
| CN204523805U (en) * | 2015-04-24 | 2015-08-05 | 合肥精工导卫配件有限责任公司 | The two-sided guide groove in a kind of wind water cooling roller slow cooling section |
-
2015
- 2015-04-24 CN CN201510209700.6A patent/CN104826877B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1012151A (en) * | 1962-06-18 | 1965-12-08 | Dorman Long Steel Ltd | Improvements in or relating to entry guides for rolling mills |
| CN201020479Y (en) * | 2007-02-16 | 2008-02-13 | 宝山钢铁股份有限公司 | Wire mill entrance slide guiding device |
| CN101773943A (en) * | 2010-01-08 | 2010-07-14 | 山东西王特钢有限公司 | Device for preventing deformed bars from bending |
| CN203437425U (en) * | 2013-08-10 | 2014-02-19 | 马鞍山市方圆材料工程有限公司 | Water cooling outlet guide assembly |
| CN204018386U (en) * | 2014-08-06 | 2014-12-17 | 马鞍山市麦立机械制造有限公司 | The guider of rolling high speed wire stock guiding channel |
| CN204523805U (en) * | 2015-04-24 | 2015-08-05 | 合肥精工导卫配件有限责任公司 | The two-sided guide groove in a kind of wind water cooling roller slow cooling section |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234362A (en) * | 2015-10-27 | 2016-01-13 | 南京钢铁股份有限公司 | Anti-deformation foot roll combination device for sector section of large square blank and application method of anti-deformation foot roll combination device |
| CN105234362B (en) * | 2015-10-27 | 2017-06-20 | 南京钢铁股份有限公司 | A kind of bloom fan-shaped section resistance to deformation foot roller combination unit and its application process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104826877B (en) | 2018-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102899471B (en) | Heat treatment method for bainite steel rail | |
| CN103572025B (en) | Production method of low-cost X52 pipeline steel and pipeline steel | |
| CN103131826A (en) | Steel rail on-line wind-jet quenching heat treatment simulation experiment device | |
| CN204523805U (en) | The two-sided guide groove in a kind of wind water cooling roller slow cooling section | |
| CN103128108B (en) | A kind of online controlled cooling method and device improving obdurability after the hot rolling of HFW welded tube | |
| CN104826877A (en) | Air-cooled/water-cooled rolling type slow cooling section double-sided guide slot | |
| CN108941199A (en) | A kind of reinforcing bar casting system and reinforcing bar casting-rolling method | |
| CN204470299U (en) | A kind of cooling device increasing high-speed bar mill on-line cooling effect | |
| CN207615632U (en) | A kind of double water cooling conticasting straightening rolls | |
| CN113403465A (en) | Method for controlling uniformity of structure performance of two sides of heat-treated steel rail head | |
| CN102433419B (en) | Water-through quenching cooling device and method capable of realizing rapid cooling through slit water injection | |
| CN103286147B (en) | Hot-rolled board strip production line laminar cooling method | |
| KR101105106B1 (en) | An Apparatus for Cooling Rolled Wire-Rod | |
| CN208728319U (en) | A kind of cooling ultra dense cold control device of TEMPERATURE FOR HOT STRIP LAMINAR | |
| CN104017956B (en) | A kind of spraying, air-cooled dual-purpose quenching device | |
| CN204523806U (en) | The two-sided guide groove of a kind of inner-cooled | |
| CN102492814A (en) | Straight pull wire for high-carbon steel fine wires and manufacturing method for straight pull wire | |
| CN102382966B (en) | Accelerating cooling technology after medium plate tempering | |
| CN201067764Y (en) | Hot tandem rolling scissor machine export guiding device | |
| CN109092895A (en) | A kind of reinforcing bar continuous casting and rolling system and reinforcing bar continuous casting and tandem rolling production method | |
| CN108144967A (en) | A kind of emulsion spray device for being used to cooling down and lubricating copper wires roll for hot-rolling | |
| CN212525464U (en) | Water cooling air seal device | |
| CN103433447A (en) | Secondary cooling system for square billet continuous casting working region | |
| CN104525587B (en) | One wears the total forming apparatus of water | |
| CN204486484U (en) | The reverse cooling combined nozzle of high-speed rod rolling line water tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate 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: 20180327 Termination date: 20180424 |