CN103924058B - A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross - Google Patents
A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross Download PDFInfo
- Publication number
- CN103924058B CN103924058B CN201410179115.1A CN201410179115A CN103924058B CN 103924058 B CN103924058 B CN 103924058B CN 201410179115 A CN201410179115 A CN 201410179115A CN 103924058 B CN103924058 B CN 103924058B
- Authority
- CN
- China
- Prior art keywords
- furnace roller
- dross
- working face
- circular arc
- arc working
- 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.)
- Active
Links
Abstract
A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross, its specific processing step are as follows：Furnace roller cleans, and-processing of furnace roller descaling surfaces-inspect for acceptance by furnace roller dross type decision-processing of furnace roller surface cord-.The present invention is by furnace roller dross scientific classification, then according to the removing of certain removing step, the cold rolled sheet continuous annealing stove furnace roller dross completed using special cleanout tool, solves the removing problem of furnace roller dross, the circularity of furnace roller and roughness are unaffected after guarantee removing dross, so as to extend the service life of furnace roller, equipment cost is reduced, while prevents the generation of product defects.
Description
Technical field
The present invention relates to dross clearance technique neck on a kind of furnace roller for being used in cold-reduced sheet specialization continuous annealing furnace use
Domain, belong to metallurgy industry field.
Background technology
Continuous annealing and continuous galvanizing line are long-term quantity-produced units, and continuous annealing furnace is in long-continued production
In, uncleanly belt steel surface brings iron powder, dust and grease in stove into.Under high-temperature operation, metal oxide, metal are formed
Reduzate, carbide etc. remain in furnace roller surface in stove；The furnace roller of continuous annealing furnace needs periodically to carry out under normal circumstances
Clean, otherwise these pollutants are not only impacted and damaged to equipment in product quality and stove, can also be entered in zinc liquid and be polluted
Zinc liquid, extreme influence and threat are brought to high quality of products production.
The process of the traditional cleaning furnace roller dross in China simply simply carries out cleaning rubbish and dust, treats furnace roller
Dross, the type of furnace roller dross is not judged, simply remove furnace roller dross using oilstone and other instruments, this removing technique is not only
The local circularity of furnace roller is destroyed, reduces dross and the roughness on peripheral region furnace roller surface again, this is to producing high quality of products
It is pernicious；And using the cleaning agent cleaning furnace roller for having residual after the organic solvent that can not volatilize rapidly, or volatilization and
Equipment in stove, the probability of furnace roller dross can be greatly increased, shorten the service life of furnace roller.
The content of the invention
It is an object of the invention to provide one kind by furnace roller dross scientific classification, then according to certain removing step,
The sweep-out method for the cold rolled sheet continuous annealing stove furnace roller dross completed using special cleanout tool, for solving furnace roller dross
Remove problem, ensure remove dross after furnace roller circularity and roughness it is unaffected, so as to extend the service life of furnace roller, reduce
Equipment cost, while prevent the generation of product defects.
The object of the present invention is achieved like this：A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross, it has
The processing step of body is as follows：Furnace roller cleans, and-furnace roller descaling surfaces handle-furnace roller dross type decision-at furnace roller surface cord
Reason-inspect for acceptance；It is characterized in that：
Furnace roller cleans：Removed using compressed air purging method, manual wipping method, chemical cleaning method and/or Dry ice cleaning method
Furnace roller surface floating dust and greasy dirt.
The processing of furnace roller descaling surfaces：There is the furnace roller of carbon distribution thing to furnace roller surface adhesion, coordinated using 90#--240# sand paper special
Furnace roller surface is polished with one of instrument, polishing degree is does not change roll surface roughness, and area carbon thing splits
The degree of line；Then furnace roller surface floating dust is removed and using Dry ice cleaning furnace roller surface using compressed air；Finally use asbestos
Cloth wraps up furnace roller, prevents second of pollution.
One of described specific purpose tool structure is：Including circular arc working face, side plate, adjusting means and handshake part；Circular arc work
The front end for making face upper and lower side with upper and lower side plate is connected, and upper and lower side plate rear end connects handshake part, and the rear end of upper and lower side plate is provided with energy
Change the adjusting means of circular arc working face radian size；Fitting is fixed with sand paper on circular arc working face.
Furnace roller dross type decision：Furnace roller dross has three types：Adhesive type furnace roller dross, transformant furnace roller dross and anti-
Answer type furnace roller dross；Judgement checking is carried out using visual method, sled division and/or hardness method；Various types of drosses are characterized in：
(1) adhesive type furnace roller dross：Dross individual is smaller；Nodule number is more；Quality is softer, and hardness is low, dross position
The residual of carbon is can see that using magnifying glass；Dross position is generally outside strip width scope.
(2) response type furnace roller dross：Dross individual is relatively large, and hardness is high, equivalent to being welded on furnace roller surface；Dross portion
Position is generally in the range of strip width.
(3) transformant furnace roller dross：It is a kind of transiens dross between adhesive type and response type furnace roller dross, turns
Generally in the range of strip width, dross is smaller at change type dross maximum feature dross position.
The processing of furnace roller surface cord：Classification is purged as follows：
(1) adhesive type furnace roller dross：Shock polishing is carried out using two pairs of dross regions of specific purpose tool, and it is right after dross to remove
Roll surface carries out Dry ice cleaning.
Two structure of described specific purpose tool is：Bag false bottom seat and shock bar, the working face of base are slightly larger than for radian
The circular arc working face of the cambered surface of furnace roller radian, hit the both ends that bar is fixed on base circular arc working face；The circular arc working face of base
Upper fitting is fixed with sand paper；
(2) response type furnace roller dross：Under magnifying glass, using medical-dental hand-held grinder, high accuracy positioning instrument is equipped with,
After being accurately positioned to dross position, polishing one by one is carried out to dross and is removed；Then reconditioning position polished again with sand paper
Roughness processing is done, Dry ice cleaning finally is carried out to roll surface；
(3) transformant furnace roller dross：Shock grinding process first is carried out in the way of adhesive type furnace roller dross, is then pressed again
Polishing removing and roughness processing are carried out according to the mode of response type furnace roller dross, Dry ice cleaning finally is carried out to roll surface；
Inspect for acceptance：Standard is to remove the roughness of the zone furnace roller surface and the circularity of furnace roller and peripheral region after dross
It is unanimously as qualified.
The purpose of the present invention can also be achieved in that：The chemical that described chemical cleaning method is selected is industrial alcohol
And aviation kerosine.
Two shock bars of described specific purpose tool and the circular arc working face mode that is connected of base are dovetail groove mode.
It is copper alloy that the two of described specific purpose tool, which hit strip material,.
One of described specific purpose tool circular arc working face and upper and lower sides plate material are elastic sheet iron, above and below circular arc working face
Termination is enclosed with rubber.
The invention has the advantages that：By carrying out scientific classification research to furnace roller dross, various types of furnace rollers are found
The characteristics of dross, according still further to it is respective the characteristics of be purged using different methods, ensure to remove thoroughly and remove dross part
Furnace roller surface circularity and roughness and surrounding it is consistent.What is so ensured that roots out the quality of furnace roller after dross, Jin Erbao
The quality of product is demonstrate,proved.
Brief description of the drawings
The removing process chart of Fig. 1 present invention
Fig. 2 is used for one of the specific purpose tool of scale breading processing structural representation
Fig. 3 is used for the schematic diagram of two structure type one for the specific purpose tool that adhesive type dross is removed
Fig. 4 is used for the schematic diagram of two structure type two for the specific purpose tool that adhesive type dross is removed
Embodiment
Referring to Fig. 1, the sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross of the present invention, be by the dross on furnace roller according to
Furnace roller dross is divided into different types of dross by the difference of its Crack cause, and different removings is taken for different types of dross
The dross cleanout tool of method, in addition design specialized, thorough, clean removing furnace roller dross, and the roughness of furnace roller is not destroyed
With the circularity of furnace roller.So as to increase the service life of furnace roller, the economic benefit of enterprise is improved.
Its specific processing step is as follows：Furnace roller cleans, and-furnace roller descaling surfaces handle-furnace roller dross type decision-stove
Roller surface nodule treatment-inspect for acceptance.
The present invention removes furnace roller dross method and passed through in the application of furnace roller dross site clearing, positive effect.In general, a company
The whole furnace roller of continuous annealing and galvanization production line is worth between ten thousand yuan of 3000-3500, using the removing furnace roller dross of the present invention
Method, first, the cycle lie of furnace roller can be extended, because its furnace roller dross cleaning effect is clean, more thorough than what conventional method was cleared up
Bottom, and the roughness of furnace roller and the circularity of furnace roller are not destroyed；Second, improve the service life of furnace roller, due to cleaning it is clean,
Thoroughly, so as to reducing the clearing times of furnace roller.Calculate according to us, its furnace roller life-span about extends more than one times, therefore, every year may be used
The up to ten million members of fund are saved for an enterprise.
Below with the furnace roller of the continuous annealing of the cold-strip steel of flat cold-rolled sheet Co., Ltd of Beijing Capital Iron and Steel and galvanized wire
Illustrate furnace roller dross sweep-out method exemplified by cleaning：
1) furnace roller cleans：The method that furnace roller cleaning treatment technique mainly uses have compressed air purging method, manual wipping method,
Chemical cleaning method and Dry ice cleaning method.It is preferred that following methods：Furnace roller surface floating dust is removed using compressed air and uses dry ice clear
Prepurging roller surface.Finally using asbestos parcel furnace roller, prevent that sweeping stove pollutes.
Points for attention：During using chemical cleaning method, the chemical used must actually obtain proof, no
Any vestige can be left on cleaning equipment, and be not in any residual, production site can be had any impact.Practice
Prove that above-mentioned requirements can be met using industrial alcohol and aviation kerosine cleaning furnace roller at present.Other cleaning agents are not confirmed.
Absolutely not allow to use for the cleaning agent not being confirmed.
Pure cotton product must be used by wiping the rag that furnace roller uses, and prohibit the use of fibre.Some have argued that pure cotton system
Product hair loss, fiber not hair loss, in fact fiber is very thin, comes off and also is difficult to find, but fiber once remains in furnace roller surface and caused
Consequence it is very serious.Pure cotton is carbonized under high-temperature operation, at most pollutes roll surface.Chemical fibre is in the next portion of high temperature action
Divide material volatilization；The goods and materials that another part is very easy to adhesion belt steel surface during roll surface coking form dross.
It should be noted that dry ice blasting furnace roller surface does not allow water occur using Dry ice cleaning, the roll surface after injection is drying
's.Compressed air dew point wants bottom, and dry ice storage bin is not allow for ponding, and water once occurs in furnace roller surface, it is necessary to stops operation, makes
Roll surface water is wiped clean with dry cloth.And handle dry ice cleaner produced problem well to be operated again.Spraying furnace roller forbids tide
Wet, otherwise furnace roller surface is very easy to get rusty, once furnace roller corrosion must be changed, re-starts spray treatment.Require emphasis one
Point：Appearance water spray phenomenon is not allowed using Dry ice cleaning in stove.
2) furnace roller descaling surfaces are handled：Carbon distribution thing to furnace roller surface adhesion is, it is necessary to carry out scale breading processing.Break on furnace roller surface
The content of squama processing includes：According to furnace roller surface condition, using the sand paper (90#--240#) and specific purpose tool of different model to stove
Roller surface is polished (polishing degree should not change roll surface roughness), reaches the cracked degree of surface adhesion thing；Make
Furnace roller surface floating dust is removed with compressed air and using Dry ice cleaning furnace roller surface.Finally using asbestos cloth parcel furnace roller, prevent
Occur second to pollute.
One of the described specific purpose tool for scale breading structure is：Including circular arc working face 1.1, side plate 1.2, adjusting means
1.3 and handshake part 1.4；The upper and lower side of circular arc working face 1.1 is connected with the front end of upper and lower side plate 1.2, the upper and lower rear end of side plate 1.2 connection
Handshake part 1.4, the rear end of upper and lower side plate 1.2 are provided with the adjusting means 1.3 that can change the radian size of circular arc working face 1.1；Circle
Fitting is fixed with sand paper on arc working face 1.1；
Circular arc working face 1.1 and the material of upper and lower side plate 1.2 are elastic sheet iron, and circular arc working face wraps up termination about 1.1
There is rubber.
3) furnace roller dross type decision：Furnace roller dross has three types：Adhesive type, transformant and response type.
1. the characteristics of adhesive type furnace roller dross：Dross individual is smaller；Nodule number is more；The composition of dross thing is with oxygen, iron
Based on carbon, the equal size such as silicon, manganese, aluminium is less, and quality is softer, and hardness is low, easily polishes off；Dross uses the two of specific purpose tool
It can remove, dross position can see that the residual of carbon using magnifying glass；Dross position is generally outside strip width scope.
2. the characteristics of response type furnace roller dross：Dross individual is relatively large (individual is not easy to find when smaller), knurl position
Generally in the range of strip, knurl occurs mostly in high-temperature region furnace roller surface.Also have on rapid cooling section outlet furnace roller surface on a small quantity, this
Kind of dross is largely that high-strength steel production line is more, and knurl composition is with oxygen, iron, manganese, aluminium, based on nickel element, a small amount of carbon；Hardness
It is high, it is not easy to polish, dross can not also be removed using the two of specific purpose tool, equivalent to being welded on furnace roller surface.
3. the characteristics of transformant furnace roller dross：It is a kind of transiens dross between adhesive type and response type dross,
So dross is usually in the early stage adhesive type, irreversible once converting and completing as development is converted into response type.Transformant
Generally in the range of strip width, dross is smaller at dross maximum feature dross position.Dross can be removed using the two of specific purpose tool
Fall a part, another part can not be removed.
Adhesive type dross easily determines according to above characteristic comparing, response type dross and the more difficult judgement of transformant dross,
Wherein transformant judges most difficult.Field judgment bases are mainly visually judged according to the characteristics of dross, and take sled to remove
Method and hardness method are verified.
4) furnace roller surface cord is handled：The fundamental importance of furnace roller nodule treatment is not damage furnace roller coating, and removes knot
Knurl.The type of furnace roller dross is different, it is necessary to using different handling process, if handling process selection is incorrect, will result in
The damage of furnace roller.
The processing method of all types of drosses：
Adhesive type nodule treatment technique：Shock polishing is carried out using two pairs of dross regions of specific purpose tool, you can is removed.Knot
Knurl carries out Dry ice cleaning after removing to roll surface.
Two structure of specific purpose tool removed for adhesive type dross is：Bag false bottom seat 2.1 and shock bar 2.2, base
2.1 working face is circular arc working face of the radian slightly larger than the cambered surface of furnace roller radian, hits bar 2.2 and is fixed on the circular arc of base 2.1
The both ends of working face；Fitting is fixed with sand paper on the circular arc working face of base 2.1；The circular arc for hitting bar 2.2 and base 2.1 works
The face mode of being connected can use dovetail groove mode.It is preferably copper alloy to hit the material of bar 2.2.
Response type nodule treatment technique：Under magnifying glass, using medical-dental hand-held grinder, high accuracy positioning is equipped with
Instrument, after being accurately positioned to dross position, polishing one by one is carried out to dross and is removed；Then reconditioning position beaten again with sand paper
Mill does roughness processing, finally carries out Dry ice cleaning to roll surface.
Transformant furnace roller dross：First in the way of adhesive type furnace roller dross carry out shock grinding process, then according still further to
The mode of response type furnace roller dross carries out polishing removing and roughness processing, finally carries out Dry ice cleaning to roll surface.
5) inspect for acceptance：Standard is to remove the roughness of the zone furnace roller surface and the circularity of furnace roller and peripheral region after dross
Domain is unanimously as qualified.
Claims (4)
1. a kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross, its specific processing step are as follows：Furnace roller cleans-
The processing of furnace roller descaling surfaces-inspect for acceptance by furnace roller dross type decision-processing of furnace roller surface cord-；It is characterized in that：
Furnace roller cleans：Furnace roller is removed using compressed air purging method, manual wipping method, chemical cleaning method and/or Dry ice cleaning method
Surface floating dust and greasy dirt；The chemical that described chemical cleaning method is selected is industrial alcohol and aviation kerosine；
The processing of furnace roller descaling surfaces：There is the furnace roller of carbon distribution thing to furnace roller surface adhesion, coordinate special tool using 90#--240# sand paper
A pair of furnace roller surfaces of tool are polished, and polishing degree is does not change roll surface roughness, and area carbon thing is cracked
Degree；Then furnace roller surface floating dust is removed and using Dry ice cleaning furnace roller surface using compressed air；Finally use asbestos cloth bag
Furnace roller is wrapped up in, prevents second of pollution；
One of described specific purpose tool structure is：Including circular arc working face (1.1), side plate (1.2), adjusting means (1.3) and hold
Hand (1.4)；Circular arc working face (1.1) upper and lower side is connected with the front end of upper and lower side plate (1.2), and upper and lower side plate (1.2) rear end connects
Handshake part (1.4) is connect, the rear end of upper and lower side plate (1.2) is provided with the regulation dress that can change circular arc working face (1.1) radian size
Put (1.3)；Fitting is fixed with sand paper on circular arc working face (1.1)；
Furnace roller dross type decision：Furnace roller dross has three types：Adhesive type furnace roller dross, transformant furnace roller dross and response type
Furnace roller dross；Judgement checking is carried out using visual method, sled division and/or hardness method；Various types of drosses are characterized in：
(1) adhesive type furnace roller dross：Dross individual is smaller；Nodule number is more；Quality is softer, and hardness is low, and dross position uses
Magnifying glass can see that the residual of carbon；Dross position is generally outside strip width scope；
(2) response type furnace roller dross：Dross individual is relatively large, and hardness is high, equivalent to being welded on furnace roller surface；Dross position leads to
Often in the range of strip width；
(3) transformant furnace roller dross：It is a kind of transiens dross between adhesive type and response type furnace roller dross, transformant
Generally in the range of strip width, dross is smaller at dross maximum feature dross position；
The processing of furnace roller surface cord：Classification is purged as follows：
(1) adhesive type furnace roller dross：Shock polishing is carried out using two pairs of dross regions of specific purpose tool, is removed after dross to roll surface
Carry out Dry ice cleaning；
Two structure of described specific purpose tool is：Bag false bottom seat (2.1) and shock bar (2.2), the working face of base (2.1) are
Radian hits bar (2.2) and is fixed on the two of base (2.1) circular arc working face slightly larger than the circular arc working face of the cambered surface of furnace roller radian
End；Fitting is fixed with sand paper on the circular arc working face of base (2.1)；
(2) response type furnace roller dross：Under magnifying glass, using medical-dental hand-held grinder, high accuracy positioning instrument is equipped with, right
After dross position is accurately positioned, polishing one by one is carried out to dross and is removed；Then reconditioning position is carried out to be polished again with sand paper, and it is thick to do
Rugosity processing, finally carries out Dry ice cleaning to roll surface；
(3) transformant furnace roller dross：Shock grinding process first is carried out in the way of adhesive type furnace roller dross, then according still further to anti-
Answer the mode of type furnace roller dross to carry out polishing removing and roughness processing, Dry ice cleaning finally is carried out to roll surface；
Inspect for acceptance：Standard be remove dross after the zone furnace roller surface roughness and furnace roller circularity it is consistent with peripheral region
It is as qualified.
2. the sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross according to claim 1, it is characterised in that：Described
Two shock bars (2.2) and the circular arc working face of base (2.1) of the specific purpose tool mode that is connected are dovetail groove mode.
3. the sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross according to claim 1, it is characterised in that：Described
It is copper alloy that the two of specific purpose tool, which hit bar (2.2) material,.
4. the sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross according to claim 1, it is characterised in that：Described
One of specific purpose tool circular arc working face (1.1) and upper and lower side plate (1.2) material are elastic sheet iron, on circular arc working face (1.1)
Lower end is enclosed with rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179115.1A CN103924058B (en) | 2013-12-14 | 2014-04-27 | A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682177 | 2013-12-14 | ||
| CN201310682177.X | 2013-12-14 | ||
| CN201310682177X | 2013-12-14 | ||
| CN201410179115.1A CN103924058B (en) | 2013-12-14 | 2014-04-27 | A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924058A CN103924058A (en) | 2014-07-16 |
| CN103924058B true CN103924058B (en) | 2018-01-09 |
Family
ID=51142447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179115.1A Active CN103924058B (en) | 2013-12-14 | 2014-04-27 | A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924058B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998906A (en) * | 2015-06-17 | 2015-10-28 | 铜陵市大明玛钢有限责任公司 | Surface washing method for forged steel cold rolling roller |
| CN108676997B (en) * | 2018-05-21 | 2020-02-07 | 马鞍山钢铁股份有限公司 | Method for searching position of indentation defect generation in vertical continuous annealing furnace |
| CN108715919B (en) * | 2018-06-28 | 2020-02-21 | 江苏省沙钢钢铁研究院有限公司 | Method for eliminating pockmarks on surface of cold-rolled common plate continuous annealing strip steel |
| CN109702562B (en) * | 2019-01-08 | 2020-04-24 | 安徽马钢表面技术股份有限公司 | Cold rolling furnace roller coating renovation treatment method |
| CN111850281A (en) * | 2020-07-08 | 2020-10-30 | 鞍钢股份有限公司 | Method for controlling pockmark defects |
| CN115323126B (en) * | 2022-07-27 | 2023-05-23 | 攀钢集团西昌钢钒有限公司 | Method for rapidly reducing furnace roller nodulation of continuous annealing furnace and prolonging service cycle of furnace roller nodulation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906529A (en) * | 2009-06-08 | 2010-12-08 | 鞍钢股份有限公司 | Method for controlling and treating bottom roller dross of carbon sleeve furnace |
| CN102776351A (en) * | 2011-05-10 | 2012-11-14 | 鞍钢股份有限公司 | Two-stage treating method for accretion in carbon jacket hearth roll of continuous annealing furnace |
| CN103290200A (en) * | 2013-06-18 | 2013-09-11 | 河北省首钢迁安钢铁有限责任公司 | Method for treating accretions of roller with carbon sleeve for continuous annealing furnace |
-
2014
- 2014-04-27 CN CN201410179115.1A patent/CN103924058B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906529A (en) * | 2009-06-08 | 2010-12-08 | 鞍钢股份有限公司 | Method for controlling and treating bottom roller dross of carbon sleeve furnace |
| CN102776351A (en) * | 2011-05-10 | 2012-11-14 | 鞍钢股份有限公司 | Two-stage treating method for accretion in carbon jacket hearth roll of continuous annealing furnace |
| CN103290200A (en) * | 2013-06-18 | 2013-09-11 | 河北省首钢迁安钢铁有限责任公司 | Method for treating accretions of roller with carbon sleeve for continuous annealing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924058A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924058B (en) | A kind of sweep-out method of cold rolled sheet continuous annealing stove furnace roller dross | |
| CN102744277B (en) | Method for producing cold-rolled stainless steel annealing and pickling brand steel | |
| CN103418624B (en) | A kind of cold conditions metal plate and belt solid jet descaling process | |
| JP2011526543A (en) | Hot strip strip removal method and scale removal equipment | |
| CN102581542B (en) | Waste and old oil well pipe performance recovery process | |
| CN108262359B (en) | A kind of process improving cold rolling titanium strip coil surface quality | |
| CN104561876A (en) | Hot galvanizing technical method | |
| CN103481012A (en) | Welding repairing method for rolls | |
| CN103407538B (en) | Bicycle made of natural bamboo | |
| CN103909102A (en) | Processing layout and control method for jet flow and washing of metal strip | |
| CN110013954A (en) | A kind of flawless and resistance and fingerprint resistance surface treatment method of ordinary carbon steel | |
| CN107335686A (en) | A kind of method for detecting strip cleaning performance | |
| CN107747113A (en) | A kind of surface treatment method of non-ferrous metal workpiece | |
| CN103418625A (en) | Jet de-scaling system and method for surfaces of metal bars and wires | |
| CN109500744A (en) | Large-size stainless steel work piece surface blasting craft | |
| JP6082625B2 (en) | Stainless steel strip manufacturing method | |
| CN1544700A (en) | Brush roll cleaning process in stainless steel hot-rolled sheet acid cleaning process and brush roll therefor | |
| CN103806846B (en) | Anti-corrosion wear-proof sucker polish | |
| CN101113971A (en) | Roll processing flaw detecting method | |
| CN207026151U (en) | A kind of 3M squeeze rolls degreasing unit | |
| CN103894429B (en) | A kind of de-scaling cell layout method for jet de-scaling and jet descaling method | |
| CN113340903B (en) | Rapid detection method for rolled steel plate layering | |
| CN103302444A (en) | Repairing agent and repairing method for mechanical wear | |
| CN108637586A (en) | A kind of guide and guard surface repairing method | |
| JP6173514B1 (en) | Manufacturing method of ferritic stainless steel sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 065201 No. 302 Hanwang Road, Sanhe Yanjiao economic and Technological Development Zone, Langfang, Hebei Patentee after: Hebei first swallow machinery Limited by Share Ltd Address before: 065201 Hebei Langfang Sanhe Yanjiao Economic Development Zone College East Street 11 Patentee before: Hebei Shougang Yanjiao Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210122 Address after: 063200 Hebei province Tangshan City Caofeidian District Tang Hai Town West Economic Zone Patentee after: TANGSHAN CAOFEIDIAN DISTR SHOUYAN MACHINERY Co.,Ltd. Address before: 065201 No. 302 Hanwang Road, Sanhe Yanjiao economic and Technological Development Zone, Langfang, Hebei Patentee before: HEBEI SHOUYAN MACHINERY Co.,Ltd. |