CN106825081A - The detection method of descaling jet operating mode - Google Patents
The detection method of descaling jet operating mode Download PDFInfo
- Publication number
- CN106825081A CN106825081A CN201710156984.6A CN201710156984A CN106825081A CN 106825081 A CN106825081 A CN 106825081A CN 201710156984 A CN201710156984 A CN 201710156984A CN 106825081 A CN106825081 A CN 106825081A
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- CN
- China
- Prior art keywords
- slab
- descaling jet
- operating mode
- descaling
- detection method
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of detection method of descaling jet operating mode, including step：A1 experiment coating) is coated with the impact surface of slab；A2 slab) is placed on by rollgang by crane；A3 slab is delivered in De-scaling box by rollgang)；A4 slab) is sprayed by de-scaling mouth, experiment coating is oppositely arranged with descaling jet；A5 slab) is allocated and transported offline；A6) the impact vestige of check test coating, judges descaling jet situation.Experiment coating is coated with by slab, it is easy to staff to observe the impact vestige of descaling jet, by the shape for judging impact vestige, and then learn the working condition of descaling jet, it is easy to descaling jet of the staff in time to breaking down to repair, descaling jet is reduced to be worked on after going wrong the situation for causing the surface quality of hot-strip to reduce, therefore, the detection method of the descaling jet operating mode of the application offer is effectively improved the surface quality of hot-strip.
Description
Technical field
The present invention relates to metallurgical de-scaling detection technique field, more particularly to a kind of detection method of descaling jet operating mode.
Background technology
In metallurgy industry, the quality of Surfaces of Hot Rolled Strip plays a decisive role to product total quality.Hot-strip is adding
During work, the iron scale of belt steel surface is removed by water under high pressure.
Hot Line high pressure descaling is the work for effectively removing secondary oxidation iron sheet in heating once oxidation iron sheet and the operation of rolling
Skill, and high-pressure descaling nozzle due to by water quality, site environment and nozzle quality etc. influence, in fact it could happen that abrasion, angle, injection
Situations such as coverage rate, and belt steel surface scale removal effect quality can be directly affected.If allowing the descaling jet for going wrong to continue work
Make, be easily damaged Surfaces of Hot Rolled Strip, causing the surface quality of hot-strip reduces.
Therefore, how strip surface quality is improved, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of detection method of descaling jet operating mode, to improve strip surface quality.
To achieve the above object, the present invention provides a kind of detection method of descaling jet operating mode, including step：
A1 experiment coating) is coated with the impact surface of slab；
A2 slab) is placed on by rollgang by crane；
A3 slab is delivered in De-scaling box by rollgang)；
A4 slab) is sprayed by de-scaling mouth, the experiment coating is oppositely arranged with the descaling jet；
A5 slab) is allocated and transported offline；
A6) the impact vestige of check test coating, judges descaling jet situation.
Preferably, also including step A7)：When checking descaling jet unqualified, after maintenance descaling jet, return to step
A2) until detection is qualified.
Preferably, the experiment coating is skin of paint
Preferably, the step A1 includes：
Select the slab of surfacing；
Paint is coated with steel slab surface, skin of paint is formed；
Slab static Preset Time at normal temperatures.
Preferably, the thickness of the skin of paint is less than 2mm.
Preferably, when pummel test is carried out in roughing De-scaling box, slab thickness is 220mm-260mm.
Preferably, when pummel test is carried out in pony roughing mill, slab thickness is 160mm-180mm.
Preferably, when pummel test is carried out in finish rolling De-scaling box, slab thickness is 35mm-45mm.
Preferably, the descaling jet injection slab time is 15s-25s.
Preferably, after the slab standing time of skin of paint is provided with more than three months, when carrying out pummel test, it is coated with again
Skin of paint.
Preferably, the step A6) include：
When vestige intersection is impacted, descaling jet angle is overhauled；
When vestige appearance missing is impacted, whether maintenance descaling jet comes off or blocks；
When impacting that vestige is S-shaped or width is not waited, replacing descaling jet；
When it is sector to impact vestige, the position of adjustment descaling header protective cover and water nozzle.
In the above-mentioned technical solutions, the detection method of the descaling jet operating mode that the present invention is provided, including step：A1) in plate
Experiment coating is coated with the impact surface of base；A2 slab) is placed on by rollgang by crane；A3 rollgang) is passed through by plate
Base is delivered to De-scaling box and carries out in pummel test；A4 slab) is sprayed by de-scaling mouth, coating is relative with descaling jet sets for experiment
Put；A5 slab) is allocated and transported offline；A6) the impact vestige of check test coating, judges descaling jet situation.
By foregoing description, in the detection method of the descaling jet operating mode that the present invention is provided, applied by slab
If experiment coating, it is easy to staff to observe the impact vestige of descaling jet, by judging the shape of impact vestige, and then learns
The working condition of descaling jet, is easy to descaling jet of the staff in time to breaking down to repair, and reduces descaling jet
Work on the situation for causing the surface quality of hot-strip to reduce after going wrong, therefore, the de-scaling spray that the application is provided
The detection method of mouth operating mode is effectively improved the surface quality of hot-strip.
Brief description of the drawings
The detection method flow chart of the descaling jet operating mode that Fig. 1 is provided by the embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of detection method of descaling jet operating mode, to improve strip surface quality.
In order that those skilled in the art more fully understands technical scheme, below in conjunction with the accompanying drawings and embodiment party
The present invention is described in further detail for formula.
Fig. 1 is refer to, in a kind of specific embodiment, the inspection of the descaling jet operating mode that the specific embodiment of the invention is provided
Survey method, including step：
A1) it is coated with experiment coating in slab.
Specifically, experiment coating can be dope layer, in order to improve the adhesiveness of experiment coating, it is to avoid in roller transport
Come off, it is preferable that experiment coating is skin of paint.In order to avoid the blocked up influence impact vestige thickness of skin of paint, it is preferable that the thickness of skin of paint
Degree is less than 2mm, and accurately descaling jet working condition is judged for the ease of identification, it is desirable to which skin of paint thickness is uniform, and paint is red
The colors such as color, green are easy to the paint of identification.
Due to being coated with overlong time when slab skin of paint, impact cut is easily caused inaccurate, it is preferable that when being provided with skin of paint
Slab standing time more than three months after, when carrying out pummel test, skin of paint is coated with again.
Specifically, the step A1 includes：
Select the slab of surfacing；It is required that slab is smooth bent without wooden dipper, and then enable that the accurate basis of staff is hit
Beat cut and judge which kind of failure descaling jet occurs.
Paint is coated with steel slab surface, skin of paint is formed；
Slab static Preset Time at normal temperatures.Specifically, Preset Time is more than 5 days, it is preferable that Preset Time is 6-8 days.
In order to adapt to De-scaling box size, it is preferable that width of plate slab is 1800mm, slab length is 6m.Further, when in roughing
When carrying out pummel test in De-scaling box, it is preferable that slab thickness is 220mm-260mm, preferably slab thickness is 230mm.When thick
When mill stand carries out pummel test, slab thickness is 160mm-180mm, and preferably slab thickness is 170mm.When in finish rolling De-scaling box
When carrying out pummel test, slab thickness is 35mm-45mm, and preferably slab thickness is 40mm.The application uses analog rolling process
The thickness of middle slab, in the method that steel slab surface brush formulates thickness paint, is sentenced by the paint vestige abolished by water under high pressure
Whether the operating mode of disconnected descaling jet meets technological requirement, can more reflect the actual conditions during work of descaling jet.
A2 slab) is placed on by rollgang by crane.
A3 slab) is delivered into De-scaling box by rollgang is carried out in pummel test.
In order to the descaling jet injection slab time is 15s-25s, preferably 20s.
A4 slab) is sprayed by de-scaling mouth, experiment coating is oppositely arranged with descaling jet.
A5 slab) is allocated and transported offline.
Specifically, when roughing De-scaling box de-scaling point pummel test is carried out, the slab for brushing paint is hung to fortune with crane
On defeated roller-way, slab is transported in roughing De-scaling box (De-scaling box entrance and exit can see slab), wherein, skin of paint with
Descaling jet is relative, it is ensured that water under high pressure can impact skin of paint, and roller-way transmission switches to closed mode, while opening entrance and going out
Two groups of roughing De-scaling box de-scaling water of mouth, injection is closed after 20 seconds, and slab is exited, and handling is offline.
When carrying out pony roughing mill de-scaling point pummel test, the slab for brushing paint is hung to conveyor roller with crane, will
Slab is transported in roughing mill, and slab when entrance de-scaling point is with exporting in de-scaling point range, stops roller-way transmission end to end.Will
After roughing roll gap presses to 180mm, roughing mill entrance de-scaling point de-scaling water is opened, injection is closed after 20 seconds, is then turned on roughing
Machine exports de-scaling point de-scaling water, and injection is closed after 20 seconds, and lifting roll gap exits slab to maximum, and handling is offline or using useless
Steel ejecting device is offline.
When carrying out finish rolling De-scaling box de-scaling point pummel test, the slab for brushing paint is hung to conveyor roller with crane,
Slab is transported in finish rolling De-scaling box (De-scaling box entrance and exit can see slab), roller-way transmission switches to closing shape
State, low level is fallen in control interface by descaling header manually, while finish rolling De-scaling box two groups of de-scaling water of entrance and exit are opened,
Injection is closed after 20 seconds, and slab is exited, and handling is offline or offline using steel scrap ejecting device.
A6) the impact vestige of check test coating, judges descaling jet situation.When strike vestige with plate width direction into 10 °
~20 ° of angles, vestige angle should be unified, and the amount of having a common boundary should be uniformly clear.The amount of lap requirement of strike vestige：De-scaling 5 after stove~
De-scaling >=10mm between 10mm, roughing mill 3~8mm of de-scaling, 10~20mm of de-scaling before finish rolling, finishing stand, is judged as descaling jet
Normally.
Step A6) include：
When vestige intersection is impacted, descaling jet angle is overhauled；
When vestige appearance missing is impacted, whether maintenance descaling jet comes off or blocks；
When impacting vestige S-shaped (i.e. in " earthworm shape ") or width and not waiting, expression descaling jet serious wear, replacing removes
Squama nozzle；
When it is sector to impact vestige, it is triangle or star for example to impact vestige, represents water nozzle and collector protective cover
In the presence of interference, the position of adjustment descaling header protective cover and water nozzle.
By foregoing description, in the detection method of the descaling jet operating mode that the specific embodiment of the invention is provided,
Experiment coating is coated with by slab, is easy to staff to observe the impact vestige of descaling jet, by judging impact vestige
Shape, and then the working condition of descaling jet is learnt, it is easy to descaling jet of the staff in time to breaking down to repair,
Reduce descaling jet to be worked on after going wrong the situation for causing the surface quality of hot-strip to reduce, in process of production
The characteristics of high pressure descaling water nozzle operating mode proof cycle is long, formulates conveniently de-scaling strike experimental technique, to each height of Hot Line
Pressure de-scaling clicks through the periodic inspection of water-filling mouth operating mode, ensures strip scale removal effect, therefore, the descaling jet operating mode that the application is provided
Detection method be effectively improved the surface quality of hot-strip.
On the other hand, relative to using, cumbersome uncapping checks nozzle and proof cycle is (being checked using the repair time) more long
The drawbacks of, with water nozzle need not be dismantled, it is completely combined in the true de-scaling process of simulation, with actual production process, meanwhile, with side
Just it is quick, Check-Out Time and hand labor intensity, the advantage of improve production efficiency can be greatly reduced；Have in industry very high
Promotional value.Simultaneously, it is possible to use roll changing time is verified to each de-scaling point de-scaling water nozzle operating mode, workable.
Further, it is preferable that the detection method of the descaling jet operating mode also includes step A7)：When inspection descaling jet does not conform to
During lattice, after maintenance descaling jet, return to step A2) until detection is qualified.After being prevented effectively from maintenance also there is part in descaling jet
The situation of problem, further increases the surface quality of hot-strip.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. a kind of detection method of descaling jet operating mode, it is characterised in that including step：
A1 experiment coating) is coated with the impact surface of slab；
A2 slab) is placed on by rollgang by crane；
A3 slab is delivered in De-scaling box by rollgang)；
A4 slab) is sprayed by de-scaling mouth, the experiment coating is oppositely arranged with the descaling jet；
A5 slab) is allocated and transported offline；
A6) the impact vestige of check test coating, judges descaling jet situation.
2. the detection method of descaling jet operating mode according to claim 1, it is characterised in that also including step A7)：Work as inspection
Test descaling jet it is unqualified when, maintenance descaling jet after, return to step A2) until detection it is qualified.
3. the detection method of descaling jet operating mode according to claim 1, it is characterised in that the experiment coating is paint
Layer.
4. the detection method of descaling jet operating mode according to claim 3, it is characterised in that the step A1 includes：
Select the slab of surfacing；
Paint is coated with steel slab surface, skin of paint is formed；
Slab static Preset Time at normal temperatures.
5. the detection method of descaling jet operating mode according to claim 4, it is characterised in that the thickness of the skin of paint is small
In 2mm.
6. the detection method of descaling jet operating mode according to claim 1, it is characterised in that enter when in roughing De-scaling box
During row pummel test, slab thickness is 220mm-260mm.
7. the detection method of descaling jet operating mode according to claim 1, it is characterised in that hit when in pony roughing mill
When playing experiment, slab thickness is 160mm-180mm.
8. the detection method of descaling jet operating mode according to claim 1, it is characterised in that carried out when in finish rolling De-scaling box
During pummel test, slab thickness is 35mm-45mm.
9. the detection method of descaling jet operating mode according to claim 3, it is characterised in that when the slab for being provided with skin of paint
After standing time was more than three months, when carrying out pummel test, skin of paint is coated with again.
10. the detection method of the descaling jet operating mode according to any one of claim 1-9, it is characterised in that the step
Rapid A6) include：
When vestige intersection is impacted, descaling jet angle is overhauled；
When vestige appearance missing is impacted, whether maintenance descaling jet comes off or blocks；
When impacting that vestige is S-shaped or width is not waited, replacing descaling jet；
When it is sector to impact vestige, the position of adjustment descaling header protective cover and water nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156984.6A CN106825081A (en) | 2017-03-16 | 2017-03-16 | The detection method of descaling jet operating mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710156984.6A CN106825081A (en) | 2017-03-16 | 2017-03-16 | The detection method of descaling jet operating mode |
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| CN201710156984.6A Pending CN106825081A (en) | 2017-03-16 | 2017-03-16 | The detection method of descaling jet operating mode |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180816A (en) * | 2017-12-29 | 2018-06-19 | 南京钢铁股份有限公司 | A kind of quick measurement quenching press gap nozzle method |
| CN108405635A (en) * | 2018-02-27 | 2018-08-17 | 首钢京唐钢铁联合有限责任公司 | Method for testing descaling effect of hot rolling production line |
| CN110238209A (en) * | 2019-06-28 | 2019-09-17 | 新余钢铁股份有限公司 | A method of detection device for descaling by high-pressure scale removal effect |
| CN110340157A (en) * | 2019-07-02 | 2019-10-18 | 北京首钢股份有限公司 | A method of examining high-pressure descaling nozzle working condition |
| CN111649923A (en) * | 2020-05-29 | 2020-09-11 | 首钢京唐钢铁联合有限责任公司 | Detection method and detection device for anti-stripping water header of finishing mill |
| CN112317549A (en) * | 2020-09-30 | 2021-02-05 | 南京钢铁股份有限公司 | Method for rapidly judging and processing fault dephosphorization nozzle |
| CN113375531A (en) * | 2021-05-14 | 2021-09-10 | 南京钢铁股份有限公司 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
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| CN104155088A (en) * | 2014-07-17 | 2014-11-19 | 北京首钢股份有限公司 | Device and method for target practice tests of high-pressure water descaling nozzles |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180816A (en) * | 2017-12-29 | 2018-06-19 | 南京钢铁股份有限公司 | A kind of quick measurement quenching press gap nozzle method |
| CN108405635A (en) * | 2018-02-27 | 2018-08-17 | 首钢京唐钢铁联合有限责任公司 | Method for testing descaling effect of hot rolling production line |
| CN110238209A (en) * | 2019-06-28 | 2019-09-17 | 新余钢铁股份有限公司 | A method of detection device for descaling by high-pressure scale removal effect |
| CN110340157A (en) * | 2019-07-02 | 2019-10-18 | 北京首钢股份有限公司 | A method of examining high-pressure descaling nozzle working condition |
| CN111649923A (en) * | 2020-05-29 | 2020-09-11 | 首钢京唐钢铁联合有限责任公司 | Detection method and detection device for anti-stripping water header of finishing mill |
| CN112317549A (en) * | 2020-09-30 | 2021-02-05 | 南京钢铁股份有限公司 | Method for rapidly judging and processing fault dephosphorization nozzle |
| CN113375531A (en) * | 2021-05-14 | 2021-09-10 | 南京钢铁股份有限公司 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
| CN113375531B (en) * | 2021-05-14 | 2023-11-03 | 南京钢铁股份有限公司 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
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