CN108202083A - A kind of method for extending vulnerable part service life in spray beam - Google Patents
A kind of method for extending vulnerable part service life in spray beam Download PDFInfo
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- CN108202083A CN108202083A CN201611165004.0A CN201611165004A CN108202083A CN 108202083 A CN108202083 A CN 108202083A CN 201611165004 A CN201611165004 A CN 201611165004A CN 108202083 A CN108202083 A CN 108202083A
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- Prior art keywords
- spray
- male
- vulnerable part
- beam body
- female connector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of devices for extending vulnerable part service life in spray beam, which is characterized in that described device includes a set of connection devices（1）, male and female connector（4）, connecting tube（5）And connection spray beam cover board bottom outlet connector（6）, the attachment device（1）Including spraying beam cover board（2）And quick coupling（3）, wherein quick coupling（3）Mounted on male and female connector（4）On, male and female connector（4）It is arranged on connecting tube（5）On, connecting tube（5）With spraying beam cover board（2）By threaded connection.The technical solution substantially increases vulnerable part service life, improves the stability and reliability of equipment operation；Shorten maintenance load and repair time.
Description
Technical field
The present invention relates to a kind of methods for extending vulnerable part service life in spray beam, belong to cold-rolling equipment technical field.
Background technology
At present all using the spray cooling spray beam of certain famous brand name of import on numerous sour rolling mill production lines at home
Device, and with this come compound shape waves such as waves generated when solving strip steel rolling, so as to which the plate for rolling out and be effectively ensured
Strip has preferable template.From the point of view of situation used in domestic spray cooling spray beam, due in residing sealing frame
Environment temperature is up to 80 ° or so and spray beam surrounding is full of with the emulsifiable solution medium compared with strong corrosive, seriously affects spray beam
The service life of the vulnerable parts such as nipple sealing and hose, at most 2 years must be offline primary, and cost is huge.Otherwise will
Therefore lead to control piper gas leakage most likely pressure, also certainly will therefore cause control valve control effect is poor, flow matches are unreasonable,
The various functions precision deficiencies such as the closing response time of control valve is long, requirement stopping injection even occurring but cannot close show
As, the roller curve of F5 working rolls and rolling plate form control are seriously affected, so as to further influence the quality of Strip,
Also therefore it can not meet field demand.It is then desired to maintenance down, replaces the vulnerable part in spray beam beam body, according to us once
Off-line maintenance experience, the offline primary needs continual operation of the 24 people and repair time of 27 hours, for continuity compared with
Strong unit, offline replace is clearly unwise also worthless.Thus promoting vulnerable part overhaul efficiency in replacement beam body
Meanwhile we should also make an issue of in the service life of vulnerable part.
It is found by being checked after using disintegrate less than the connector damaged in offline spray beam with hose within 2 years, fluorine rubber in connector
Glue sealing is presented different degrees of aging, phenomenon of rupture, shows by the retrieval result to related data at 70 DEG C, 85%RH
With 70 DEG C, the hydrothermal aging rate of fluorubber is 7.47 times and 8.65 times of hot air aging rate respectively under 95%RH, in heat
At air aging initial stage, the rubber compression set as caused by non-chemical factor deforms caused by more than chemical reaction big to be obtained
More, high temperature, high humidity environment can greatly shorten its service life.It is also in this way, darkening after deterioration, material is hardened to take another look at hose
Become fragile, slightly firmly bending will be broken, it is envisaged that closed in control valve -- it open-turn off-is then turned on waiting frequently dynamic
Pressure is built and is showed -- pressure discharge-builds pressure again --- pressure oscillation process that pressure discharges again under work, in control pipeline, it will certainly
There is the hose phenomenon of rupture that control unicom pipeline generates the hard aging of locally even most kingfishers, also therefore will appear described above
Various abnormal failures, such situation seriously affected the operation of unit.This problem how is resolved, is to be promoted
Unit capacity and the key for ensureing rolling quality.
We searched existing all relevant technologies, without it is ready-made can reach extend vulnerable part service life
Experience does reference；
Thus, there is an urgent need to a kind of method and realization device that can extend the service life of vulnerable part in spray beam beam body, and with
This meets the needs of live.Task is urgent, in terms of cost efficiency and with very big meaning for enterprise.To sum up
Described, it is even more very necessary to design the method for the service life of vulnerable part and realization device in a kind of extension spray beam beam body.
In conclusion there is no relevant public technologies in the prior art, we are retrieved by Chinese patent, also find one
A little methods for extending service life of equipment, such as： CN201510225289.1《A kind of service life for extending Mo/Al etching liquids
Method》；Also such as：CN201510315937.2《A kind of method for extending infrared touch frame service life》Etc., it is suchlike
Involved by technology disclosed in technical solution is made an issue of can extend service life of equipment, is used and is worked saving machinery
Power cost, reduces maintenance workload, reduces that artificial costly aspect is similar to the protection purpose of this technology, but to be solved
Main problem and specific technical solution and this technology difference.For another example: CN201410456801.9《Waste heat recovery rate is high
The method of work of Heat-energy recovery system of high-temperature material》Deng the method for work used to Heat-energy recovery system of high-temperature material, and pass through
Fabric roller will be ground into granule materials after the further cooled and solidified of high-temperature material, and send to using again on fire grate.In resource sharp again
Use it is similar to the protection purpose of this technology, but the main problem to be solved and specific technical solution also with this technology not
Together.
Invention content
The present invention is exactly for the technical problems in the prior art, to provide vulnerable part in a kind of extension spray beam and use the longevity
The method of life mainly solves the prior art and there is the insoluble technical problem in scene, especially solves cold rolling sour rolling mill essence
There is vulnerable part aged deterioration inside spray beam in thin cooling device, causes functions of the equipments precision not up to standard, finished product there are template it is bad,
The accident of the serious quality problems such as aberration or even rear road finished product unit product quality, the extension beam that the program not only can be at double
The service life of internal vulnerable part, moreover it is possible in time and quickly processing have existed corruptions cause function precision insufficient therefore
Barrier until unit has long-time scheduled overhaul to replace again, effectively avoids unplanned unplanned disorderly closedown of unit,
The abnormal quality accident because in the operation of rolling caused by spray cooling system function precision is not perfect is effectively prevented, using this
Scheme of the invention can also be adjusted, soon other than having the service life for extending vulnerable part by entering out the equipment of section to spray beam
Speed is fixed a breakdown, effective to promote spray cooling function precision, and reaches the plate form control effect of best Strip with this,
Fault time greatly reduces simultaneously, saves the repair and maintenance cost caused by disorderly closedown.
To achieve these goals, technical scheme is as follows, a kind of to extend vulnerable part service life in spray beam
Device, which is characterized in that described device includes a set of connection devices, male and female connector, connecting tube and connection spray beam cover board bottom outlet
Connector, the attachment device include spray beam cover board and quick coupling, and wherein quick coupling is mounted on male and female connector, male and female connector
It is arranged in connecting tube, connecting tube is relied on spray beam cover board and is threadedly coupled.
A kind of method for extending vulnerable part service life in spray beam, which is characterized in that the method is as follows：
1）On spray cooling spray beam two groups of totally four screw holes are added on beam body upper cover plate and lower beam body lower cover；
2）Four quick couplings are set on screw hole；
3）Four quick couplings are connected on the male and female connector with double one-way functions；
4）Import male and female connector is connected on admission line；Outlet male and female connector is connected to the glass jar with detection humiture
On, glass jar outlet, which is connected to, to keep positive pressure to be unlikely to emulsion entering in the survey roller bearing cavity for leading to insufficient lubrication；
5）Admission line is connected on the wind pipe of electric panel room central air-conditioning compressor；
6）When two groups of male and female connectors of beam body are docked simultaneously under unimpeded state, electric panel room central air-conditioning comes gas, pipeline, beam at this time
Body and glass jar and milling train survey roller cavity one channel of composition with detection humidity, the beam beam body of spray cooling spray at this time
Internal vulnerable part, which is under a kind of ambient condition of good temperature and humidity, to work；
7）With the passage of activity duration, vulnerable part in beam body can not possibly be forever not bad, when in beam body vulnerable part occur 3% and
Above damage leads to branch pipe gas leak phenomenon, needs to disconnect the air outlet section male and female connector of beam body at this time, only keeps air inlet section docking
Unimpeded state, at this time spray cooling spray beam beam body internal cavity just form a closed space, 0.25 be passed through ~
Under the compressed air situation of 0.35Mpa, the cavity of sealing is exactly a small-sized accumulator in fact, keeps spray beam cavity airtight space
Pressure so that chamber pressure is in appropriate " balance " with control branch overpressure, and the air in branch pipe will be in opposite " quiet
Only " the micro state to leak, so as to achieve the purpose that prevent branch pipe external leakage；
8）It, also will be smart in the state of the closing of electric panel room central air-conditioning in spring and autumn section of the annual environment temperature at 15 ~ 25 °
It is all off that thin cooling spray beam beam body imports and exports male and female connector disconnection, energy saving with this.
As a modification of the present invention, the step 6）One is formed by the glass jar and a survey roller cavity of detection humidity
Channel so that the secondary use of the air of vulnerable part in cooling beam body；The air of secondary use to survey the bearing cavity of a roller
Remain positive pressure.Negative pressure caused by avoiding high speed rotation will have corrosive emulsion to penetrate into, and further result in axis
Damage caused by the insufficient lubrication held.The step 6）In, it is gentle to beam body nipple that the flowing of channel gas can be played
Pipe isolation cooling, have slow down sealing element, nylon tracheae aging positive effect, also act as " physical therapy " sealed to micro aging
Effect, and the degree of aging for avoiding 156 groups of vulnerable parts in spray beam differs phenomenon；
As a modification of the present invention, the step 7）In most preferably repair pressure as 0.30Mpa, the step 7 is in spray beam
Part vulnerable part in babinet occurs using its function during exception, and its object is to handle in time and quickly to have existed deterioration now
As causing the insufficient failure of function precision, until unit has long-time scheduled overhaul to replace again, effectively avoid other than unit
Unplanned disorderly closedown also effectively prevents the matter because in the operation of rolling caused by spray cooling system function precision is not perfect
Measure abnormal accident.
Further, cavity internal pressure outline is less than the normal pressure for controlling branch pipe, due to 156 controls in spray beam beam body
Valve is to need to open and close in due course with template, is matched according to lotion opening and closing pressure 0.9Mpa when normally rolling and therewith
To the branch pipe pressure 0.35Mpa that opens of normal control injection valve, and pressure is most preferably repaired as field practice verification gained and is
0.30Mpa；Described best repairing pressure help damages branch pipe so that abnormal injection valve normal switching-off but not influencing it and opening.
As a modification of the present invention, the step 7）In, effective compensation pressure value in order to obtain, in beam body air inlet
There are one pressure reducing valve, setup pressure value 0.30Mpa, one overflow valve of setting on outlet conduit, setting pressures for setting on pipeline
Force value is 0.32Mpa.The decompression valve action ensures beam body chamber pressure value stabilization in 0.30Mpa, and to abnormal control
The appropriate balance repairing of branch pipe pressure progress that vulnerable part damages in pipeline so that energy normal switching-off when injection valve needs to close, this
When branch overpressure air can leak from leakage hole is micro to beam body, micro raised beam body inner chamber body pressure can push into
The pressure reducing valve main valve plug aperture of mouth inlet end constantly reduces, and pressure can be increased constantly until reaching relief valve set pressure in beam body
Value 0.32Mpa is released；Since injection valve by lotion when being opened, the reversal valve on branch inner air tube from this road of control is released by moment
It puts, the pressure air in beam body cavity can be added in branch pipe, carry out pressure compensation when injection valve is opened next time, but at this time
Cavity internal pressure 0.30Mpa is less than, while can also be less than injection valve by the pressure that leakage point is compensated into the pressure air of branch pipe
Branch pipe air pressure 0.35Mpa needed for normal switching-off, because insufficient pressure is to close the spray opened by lotion at this time
Valve is penetrated, thus does not interfere with the opening state of injection valve, the overflow valve action ensures the damage of which part vulnerable part
Injection valve is normally-open.
Relative to the prior art, the invention has the advantages that, 1）The technical solution substantially increases vulnerable part and uses the longevity
Life, 2）Greatly improve the stability and reliability of equipment operation；3）Substantially reduce maintenance load and repair time；4）Institute
The method stated can wholly or largely use in same type system；4）Year, direct economic benefit was at 1,500,000 yuan or more.
Description of the drawings
Fig. 1 is the flow chart of the entire step of the present invention；
Fig. 2 is the schematic diagram that beam gland is sprayed after the present invention improves；
Fig. 3 is the improved newly-increased schematic device of the present invention；
Fig. 4 is the improved newly-increased device layout drawing of the present invention；
Fig. 5 is present invention spray beam cavity inner structure layout drawing；
Shown in figure：1- attachment devices；2- sprays beam cover board；3- quick couplings；4- male and female connectors；5- connecting tubes；Beam is sprayed in 6- connections
Cover board bottom outlet connector；7- sprays beam ontology;A arranges vulnerable part in 8- beam bodies；9- beam body inner chamber bodies；B arranges vulnerable part in 10- beam bodies；
C arranges vulnerable part in 11-- beam bodies.
Specific embodiment：
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 1-Fig. 5, a kind of device for extending vulnerable part service life in spray beam, described device includes one
Set of connection devices 1, male and female connector 4, connecting tube 5 and connection spray beam cover board bottom outlet connector 6, the attachment device 1 includes spray beam
Cover board 2 and quick coupling 3, wherein quick coupling 3 are mounted on male and female connector 4, and male and female connector 4 is arranged in connecting tube 5, connection
Pipe 5 is relied on spray beam cover board 2 and is threadedly coupled.
Embodiment 2：A kind of to extend the method for spraying vulnerable part service life in beam referring to Fig. 1-Fig. 5, the method is as follows：
1）On spray cooling spray beam two groups of totally four screw holes are added on beam body upper cover plate and lower beam body lower cover；
2）Four quick couplings are set on screw hole；
3）Four quick couplings are connected on the male and female connector with double one-way functions；
4）Import male and female connector is connected on admission line；Outlet male and female connector is connected to the glass jar with detection humiture
On, glass jar outlet, which is connected to, to keep positive pressure to be unlikely to emulsion entering in the survey roller bearing cavity for leading to insufficient lubrication；
5）Admission line is connected on the wind pipe of electric panel room central air-conditioning compressor；
6）When two groups of male and female connectors of beam body are docked simultaneously under unimpeded state, electric panel room central air-conditioning comes gas, pipeline, beam at this time
Body and glass jar and milling train survey roller cavity one channel of composition with detection humidity, the beam beam body of spray cooling spray at this time
Internal vulnerable part, which is under a kind of ambient condition of good temperature and humidity, to work；
7）With the passage of activity duration, vulnerable part in beam body can not possibly be forever not bad, when in beam body vulnerable part occur 3% and
Above damage leads to branch pipe gas leak phenomenon, needs to disconnect the air outlet section male and female connector of beam body at this time, only keeps air inlet section docking
Unimpeded state, at this time spray cooling spray beam beam body internal cavity just form a closed space, 0.25 be passed through ~
Under the compressed air situation of 0.35Mpa, the cavity of sealing is exactly a small-sized accumulator in fact, keeps spray beam cavity airtight space
Pressure so that chamber pressure is in appropriate " balance " with control branch overpressure, and the air in branch pipe will be in opposite " quiet
Only " the micro state to leak, so as to achieve the purpose that prevent branch pipe external leakage；
8）It, also will be smart in the state of the closing of electric panel room central air-conditioning in spring and autumn section of the annual environment temperature at 15 ~ 25 °
It is all off that thin cooling spray beam beam body imports and exports male and female connector disconnection, energy saving with this.
The step 6）One channel is formed by the glass jar and a survey roller cavity of detection humidity so that in cooling beam body easily
Damage the secondary use of the air of part；The air of secondary use causes the bearing cavity for surveying a roller to remain positive pressure.Avoid height
Negative pressure caused by speed rotation will have corrosive emulsion to penetrate into, and further result in damage caused by the insufficient lubrication of bearing
It is bad., the step 6）In, the flowing of channel gas can be played to beam body nipple and tracheae isolation cooling, had and slowed down
Sealing element, the positive effect of nylon tracheae aging also act as and " physical therapy " that micro aging seals are acted on, and avoid in spray beam
The degree of aging of 156 groups of vulnerable parts differs phenomenon；
Referring to Fig. 1, Fig. 4, Fig. 5, the step 7）In most preferably repair pressure as 0.30Mpa.The step 7 is in spray spar-box body
Part vulnerable part when occurring abnormal using its function, have existed corruptions its object is in time and quickly processing and cause
The insufficient failure of function precision until unit has long-time scheduled overhaul to replace again, effectively avoids unplanned other than unit
Disorderly closedown also effectively prevents the abnormal quality because in the operation of rolling caused by spray cooling system function precision is not perfect
Accident.
Further, cavity internal pressure outline is less than the normal pressure for controlling branch pipe, due to 156 controls in spray beam beam body
Valve is to need to open and close in due course with template, is matched according to lotion opening and closing pressure 0.9Mpa when normally rolling and therewith
To the branch pipe pressure 0.35Mpa that opens of normal control injection valve, and pressure is most preferably repaired as field practice verification gained and is
0.30Mpa；Described best repairing pressure help damages branch pipe so that abnormal injection valve normal switching-off but not influencing it and opening.
Referring to Fig. 1, Fig. 4, Fig. 5, the step 7）In, effective compensation pressure value in order to obtain, in beam body admission line
There are one pressure reducing valve, setup pressure value 0.30Mpa, one overflow valve of setting, setup pressure values on outlet conduit for upper setting
For 0.32Mpa.The decompression valve action ensures beam body chamber pressure value stabilization in 0.30Mpa, and to abnormal control pipeline
The appropriate balance repairing of branch pipe pressure progress of middle vulnerable part damage so that energy normal switching-off when injection valve needs to close, at this time
Branch overpressure air can leak from leakage hole is micro to beam body, micro raised beam body inner chamber body pressure can push entrance into
The pressure reducing valve main valve plug aperture at gas end constantly reduces, and pressure can be increased constantly until reaching relief valve set pressure value in beam body
0.32Mpa is released；Since injection valve by lotion when being opened, the reversal valve on branch inner air tube from this road of control is released by moment
It puts, the pressure air in beam body cavity can be added in branch pipe, carry out pressure compensation when injection valve is opened next time, but at this time
Cavity internal pressure 0.30Mpa is less than, while can also be less than injection valve by the pressure that leakage point is compensated into the pressure air of branch pipe
Branch pipe air pressure 0.35Mpa needed for normal switching-off, because insufficient pressure is to close the spray opened by lotion at this time
Valve is penetrated, thus does not interfere with the opening state of injection valve, the overflow valve action ensures the damage of which part vulnerable part
Injection valve is normally-open.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, on the basis of above-mentioned technical proposal
Upper made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (5)
1. a kind of device for extending vulnerable part service life in spray beam, which is characterized in that described device includes a set of connection devices
（1）, male and female connector（4）, connecting tube（5）And connection spray beam cover board bottom outlet connector（6）, the attachment device（1）Including spraying beam
Cover board（2）And quick coupling（3）, wherein quick coupling（3）Mounted on male and female connector（4）On, male and female connector（4）It is arranged on connection
Pipe（5）On, connecting tube（5）With spraying beam cover board（2）By threaded connection.
A kind of 2. method for extending vulnerable part service life in spray beam, which is characterized in that the method is as follows：
1）On spray cooling spray beam two groups of totally four screw holes are added on beam body upper cover plate and lower beam body lower cover；
2）Four quick couplings are set on screw hole；
3）Four quick couplings are connected on the male and female connector with double one-way functions；
4）Import male and female connector is connected on admission line；Outlet male and female connector is connected to the glass jar with detection humiture
On, glass jar outlet, which is connected to, to keep positive pressure to be unlikely to emulsion entering in the survey roller bearing cavity for leading to insufficient lubrication；
5）Admission line is connected on the wind pipe of electric panel room central air-conditioning compressor；
6）When two groups of male and female connectors of beam body are docked simultaneously under unimpeded state, electric panel room central air-conditioning comes gas, pipeline, beam at this time
Body and glass jar with detection humidity and milling train survey a roller cavity and form a channel, in the beam beam body of spray cooling spray at this time
The vulnerable part in portion is under a kind of ambient condition of good temperature and humidity and works；
7）With the passage of activity duration, vulnerable part in beam body can not possibly be forever not bad, when in beam body vulnerable part occur 3% and
Above damage leads to branch pipe gas leak phenomenon, needs to disconnect the air outlet section male and female connector of beam body at this time, only keeps air inlet section docking
Unimpeded state, at this time spray cooling spray beam beam body internal cavity just form a closed space, 0.25 be passed through ~
Under the compressed air situation of 0.35Mpa, the cavity of sealing is exactly a small-sized accumulator in fact, keeps spray beam cavity airtight space
Pressure so that chamber pressure is in appropriate " balance " with control branch overpressure, and the air in branch pipe will be in opposite " quiet
Only " the micro state to leak, so as to achieve the purpose that prevent branch pipe external leakage；
8）It, also will be smart in the state of the closing of electric panel room central air-conditioning in spring and autumn section of the annual environment temperature at 15 ~ 25 °
It is all off that thin cooling spray beam beam body imports and exports male and female connector disconnection, energy saving with this.
3. the method according to claim 2 for extending vulnerable part service life in spray beam, which is characterized in that the step 6）
One channel is formed by the glass jar and a survey roller cavity of detection humidity so that the secondary profit of the air of vulnerable part in cooling beam body
With；The air of secondary use causes the bearing cavity for surveying a roller to remain positive pressure.
4. the method for vulnerable part service life in the extension spray beam according to Claims 2 or 3, which is characterized in that the step
Rapid 7）In most preferably repair pressure as 0.30Mpa.
5. the method according to claim 1 for extending vulnerable part service life in spray beam, which is characterized in that the step 1）
In
There are one pressure reducing valve, setup pressure value 0.30Mpa, the settings one on outlet conduit for setting on beam body admission line
Overflow valve, setup pressure value 0.32Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165004.0A CN108202083A (en) | 2016-12-16 | 2016-12-16 | A kind of method for extending vulnerable part service life in spray beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165004.0A CN108202083A (en) | 2016-12-16 | 2016-12-16 | A kind of method for extending vulnerable part service life in spray beam |
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| Publication Number | Publication Date |
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| CN108202083A true CN108202083A (en) | 2018-06-26 |
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| CN201611165004.0A Pending CN108202083A (en) | 2016-12-16 | 2016-12-16 | A kind of method for extending vulnerable part service life in spray beam |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8706664A (en) * | 1987-12-09 | 1989-07-04 | Minas Gerais Siderurg | SEALING SYSTEM FOR LAMINATOR WORKING CYLINDERS |
| CN202371032U (en) * | 2011-12-19 | 2012-08-08 | 江阴市九天科技有限公司 | Support roll bearing pedestal of rolling mill |
| CN103084407A (en) * | 2013-01-23 | 2013-05-08 | 本钢板材股份有限公司 | Method for preventing synchronous position generator on rolling mill frame from being damaged |
| CN203862685U (en) * | 2014-04-02 | 2014-10-08 | 通化钢铁股份有限公司 | Roller-box gas sealing device of high speed wire rod finishing mill |
| CN204194435U (en) * | 2014-09-23 | 2015-03-11 | 莱芜钢铁集团有限公司 | A kind of hot line rolling line orbit motor water-proof protection device |
-
2016
- 2016-12-16 CN CN201611165004.0A patent/CN108202083A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8706664A (en) * | 1987-12-09 | 1989-07-04 | Minas Gerais Siderurg | SEALING SYSTEM FOR LAMINATOR WORKING CYLINDERS |
| CN202371032U (en) * | 2011-12-19 | 2012-08-08 | 江阴市九天科技有限公司 | Support roll bearing pedestal of rolling mill |
| CN103084407A (en) * | 2013-01-23 | 2013-05-08 | 本钢板材股份有限公司 | Method for preventing synchronous position generator on rolling mill frame from being damaged |
| CN203862685U (en) * | 2014-04-02 | 2014-10-08 | 通化钢铁股份有限公司 | Roller-box gas sealing device of high speed wire rod finishing mill |
| CN204194435U (en) * | 2014-09-23 | 2015-03-11 | 莱芜钢铁集团有限公司 | A kind of hot line rolling line orbit motor water-proof protection device |
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Application publication date: 20180626 |