CN104152834A - Method for manufacturing hot galvanized plate with high-conductivity surface - Google Patents
Method for manufacturing hot galvanized plate with high-conductivity surface Download PDFInfo
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- CN104152834A CN104152834A CN201410392823.3A CN201410392823A CN104152834A CN 104152834 A CN104152834 A CN 104152834A CN 201410392823 A CN201410392823 A CN 201410392823A CN 104152834 A CN104152834 A CN 104152834A
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Abstract
The invention discloses a method for manufacturing a hot galvanized plate with a high-conductivity surface. The method comprises the following procedures of performing degreasing cleaning on the surface; performing continuous annealing of an annealing furnace; putting the plate into a zinc pot and performing hot-dipping galvanization on the plate; performing finishing, and drawing and straightening, and performing surface coating treatment. In the finishing, and drawing and straightening procedure, a working roller of a finishing machine works under the capacitance mode to perform roughening, and the roller face roughness of the working roller is controlled between 2.0 micrometers and 2.5 micrometers. According to the method for manufacturing the hot galvanized plate with the high-conductivity surface, a galvanized steel strip is treated, the surface treatment process of the galvanized plate is improved, and therefore the hot galvanized plate with the extremely-low surface resistance, high conductivity and extremely-low non-conduction rate is obtained. Data safety of a data warehouse can be ensured, and the use requirement of a customer is met.
Description
Technical field
The present invention relates to heat zinc coating plate and manufacture field, be specifically related to the manufacture method of a kind of surface high conduction heat zinc coating plate.
Background technology
Surface high conductivity heat zinc coating plate is generally used for the data warehouse device fabrication of " large data " storage, extremely important to the safety of data.The various coating galvanizing productions of producing at present, through 16 points/face, two-sided 32 detections, surface conductivity can not all meet the demands.Surface integral conduction is bad on the one hand, and surface resistivity is higher, and surface not on-state rate is high, can not meet user's requirement; Surface integral electroconductibility reaches user's requirement but approaches higher limit on the other hand, and excess room is less, and the heavy inequality of local surfaces film just likely surmounts the upper limit, can not meet user's requirement.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of surface resistivity extremely low, there is utmost point good surface electroconductibility, the manufacture method of the surface that can meet consumers' demand high conduction heat zinc coating plate.
To achieve these goals, the technical solution used in the present invention is:
The manufacture method of this surface high conduction heat zinc coating plate,---------polishing straightening----top coat is processed to enter zinc pot galvanizing in annealing furnace continuous annealing to comprise following operation: surperficial cleaning by degreasing; Wherein, in polishing straightening operation, polishing machine working roll is operated under capacitive, and working roll roll surface roughness is controlled at 2.0～2.5 μ m.
Top coat treatment process, the film of galvanized sheet top coat is heavily controlled at 1.1g/m
2, the two-sided heavy deviation of film of galvanized sheet top coat is ± 0.1g/m
2.
The two-sided heavy deviation of 6 films of galvanized sheet top coat is ± 0.1g/m
2.
2, two-sided 6 middle limit portions of galvanized sheet top coat be 2.5cm from zinc-plated edges of boards portion distance, and two-sided six dot spacings are from equal.
In polishing straightening operation, adopt the lubricated polishing machine of finishing liquid that mass percent is 2.0%-2.5%.
The sheet resistance value of electric heating galvanized sheet is less than 0.2M Ω, and surface not on-state rate is less than 3%.
The invention has the advantages that: the manufacture method of this surface high conduction heat zinc coating plate, in polishing straightening operation, by controlling the surfaceness of polishing machine working roll, to control surfaceness and the peak value of heat zinc coating plate, improve heat zinc coating plate surface quality, the heat zinc coating plate of producing has utmost point low resistance, surface has high conductivity, can meet consumers' demand.
Further, the manufacture method of this surface high conduction heat zinc coating plate, top coat treatment process, by the film of galvanized sheet top coat is heavily controlled, accurately to control the homogeneity of galvanized sheet top coat, to reduce heat zinc coating plate surface resistivity, improve heat zinc coating plate surface conductivity; The heat zinc coating plate of producing has utmost point low resistance, surface has high conductivity, can meet consumers' demand.
Further, adopt two-sided 6 detection modes to control the heavy deviation of double-side membrane, so that the film of galvanized sheet top coat is heavily controlled, accurately to control the homogeneity of galvanized sheet top coat, to reduce heat zinc coating plate surface resistivity, improve heat zinc coating plate surface conductivity.
The manufacture method of this surface high conduction heat zinc coating plate, processes the steel band after zinc-plated, improves galvanized sheet process of surface treatment, to obtain extremely low surface resistivity, and high guidance quality, the not extremely low heat zinc coating plate of on-state rate; The mass data depot equipment that can be used in " large data " epoch needs is manufactured, and guarantees data warehouse data safety, meets the needs of customers; And can realize the output of 1000 tons/month, and there are wide market outlook
Embodiment
Contrast below, by the description to optimum embodiment, is described in further detail the specific embodiment of the present invention.
The manufacture method of this surface high conduction heat zinc coating plate,---------polishing straightening----top coat is processed to enter zinc pot galvanizing in annealing furnace continuous annealing to comprise following operation: surperficial cleaning by degreasing; Wherein, in polishing straightening operation, polishing machine working roll is operated under capacitive and carries out hacking, and working roll roll surface roughness is controlled at 2.0-2.5 μ m, and heat zinc coating plate surfaceness is 2.0-2.5 μ m.It is one of this products production difficult point that the surfaceness of surface high conductivity heat zinc coating plate and peak value thereof are controlled, in conjunction with polishing prebasal plate surfaceness, polishing machine working roll capacitive hacking, roller footpath Φ 450mm working roll roll surface roughness is controlled to 2.0-2.5 μ m scope, realizes heat zinc coating plate surface low roughness, peak value texturing.The lubricated polishing machine of finishing liquid that another functional quality per-cent is 2.0%-2.5%, passes through through lubricated polishing machine with steel, can guarantee the smooth and surface cleaning of plate shape, further guarantees to realize the polishing effect of pot galvanize product low roughness, peak value.
The manufacture method of this surface high conduction heat zinc coating plate, controls by effects on surface roughness and peak value, and galvanizing production surface quality is controlled, and the heat zinc coating plate of production has utmost point low resistance, surface has high conductivity.
Meanwhile, top coat treatment process, the film of galvanized sheet top coat is heavily controlled at 1.1g/m
2, the heavy deviation of the two interfacial films of galvanized sheet top coat is ± 0.1g/m
2.Roller coating technology is processed on zinc-plated rear galvanized sheet surface, heavy and the inhomogeneity control of the film of top coat is two of this products production difficult point, combination band steel surfaceness, application roll surfaceness, speed and pressure coupling between feeding roller and application roll, application roll and with the influence factors such as pressure between steel, controls coated membrane and focuses on 1.1g/m
2, the heavy deviation of the two interfacial films of galvanized sheet top coat is ± 0.1g/m
2, two-sided 6 are detected with the heavy deviation of controlling diaphragm at ± 0.1g/m
2, guarantee that whole plate facial mask weight average is even; Realize the control effect that film overlaps and fits, has good uniformity, belt steel surface has good conductivity, and surface not on-state rate is less than 3%.
The manufacture method of this surface high conduction heat zinc coating plate, by the film of galvanized sheet top coat is heavily controlled, accurately to control the homogeneity of galvanized sheet top coat, to reduce heat zinc coating plate surface resistivity, improves heat zinc coating plate surface conductivity.
Further, 2, two-sided 6 middle limit portions of galvanized sheet top coat be 2.5cm from zinc-plated edges of boards portion distance, and two-sided six dot spacings are from equal.Six point selection on two-sided: in 6,2 is limit portion 2 points, and other 4 are equally spaced.The selection that 6 middle limit portions are 2 is very crucial, and because limit portion is under working roll rolling effect, limit portion coating uniformity is difficult to control; The wide 1.3-1.5 rice that is generally of steel band, selecting 2, limit portion is 2.5cm from zinc-plated edges of boards portion distance, and Bu He mid-way, limit coating uniformity is consistent, can control whole galvanized sheet top coat homogeneity, to reduce heat zinc coating plate surface resistivity, improve heat zinc coating plate surface conductivity.
The sheet resistance value of the electric heating galvanized sheet of the manufacture method manufacture of this surface high conduction heat zinc coating plate is less than 0.2M Ω, and surface not on-state rate is less than 3%.
Specific embodiment: surfaceness peak value RPc (/cm) effects on surface Conductivity, in this embodiment, surface resistivity and surperficial not on-state rate are to adopt general test set, and 32, the positive and negative two sides of galvanized sheet is detected and obtained.In embodiment, be mainly that substrate surface roughness and peak value are controlled and top coat film is heavy, homogeneity is controlled two aspects and implemented.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 75, the heavy 1.1g/m of coated membrane
2, surface resistivity 0.052m Ω, on-state rate is not 0%.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 90, the heavy 1.1g/m of coated membrane
2, surface resistivity 0.040m Ω, on-state rate is not 0%.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 115, the heavy 1.1g/m of coated membrane
2, surface resistivity 0.024m Ω, on-state rate is not 0%.
Embodiment 2: coated membrane weighs and homogeneity effects on surface Conductivity.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 90, the heavy 1.1g/m of coated membrane
2, surface resistivity 0.040m Ω, on-state rate is not 0%.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 90, the heavy 1.3g/m of coated membrane
2, surface resistivity 0.052m Ω, on-state rate is not 50%.
Substrate surface roughness Ra: 1.0 μ m, peak value RPc (/cm): 90, the heavy 1.45g/m of coated membrane
2, surface resistivity 0.058m Ω, on-state rate is not 80%.
Through above embodiment checking, galvanized sheet Roughness Surface on Control is at 2.0～2.5 μ m, and the film of top coat is heavily controlled at 1.1g/m
2time, the sheet resistance value of the electric heating galvanized sheet of the manufacture method manufacture of heat zinc coating plate is less than 0.2M Ω, and surface not on-state rate is 0.
Obviously specific implementation of the present invention is not subject to the restrictions described above, as long as adopted the improvement of the various unsubstantialities that method design of the present invention and technical scheme carry out, all within protection scope of the present invention.
Claims (6)
1. a manufacture method for the high conduction in surface heat zinc coating plate,---------polishing straightening----top coat is processed to enter zinc pot galvanizing in annealing furnace continuous annealing to comprise following operation: surperficial cleaning by degreasing; It is characterized in that: wherein, in polishing straightening operation, polishing machine working roll is operated under capacitive, and working roll roll surface roughness is controlled at 2.0～2.5 μ m.
2. the manufacture method of surface as claimed in claim 1 high conduction heat zinc coating plate, is characterized in that: top coat treatment process, the film of galvanized sheet top coat is heavily controlled at 1.1g/m
2, the two-sided heavy deviation of film of galvanized sheet top coat is ± 0.1g/m
2.
3. the manufacture method of surface as claimed in claim 2 high conduction heat zinc coating plate, is characterized in that: the two-sided heavy deviation of 6 films of galvanized sheet top coat is ± 0.1g/m
2.
4. the manufacture method of the high conduction in surface as claimed in claim 3 heat zinc coating plate, is characterized in that: 2, two-sided 6 middle limit portions of galvanized sheet top coat are 2.5cm from zinc-plated edges of boards portion distance, and two-sided six dot spacings are from equating.
5. the manufacture method of surface as claimed in claim 1 high conduction heat zinc coating plate, is characterized in that: in polishing straightening operation, adopt the lubricated polishing machine of finishing liquid that mass percent is 2.0%-2.5%.
6. the manufacture method of the high conduction in the surface as described in claim 1 or 2 or 3 or 4 or 5 heat zinc coating plate, is characterized in that: the sheet resistance value of heat zinc coating plate is less than 0.2M Ω, and surface not on-state rate is less than 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392823.3A CN104152834B (en) | 2014-08-11 | A kind of manufacture method of surface high connductivity heat zinc coating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392823.3A CN104152834B (en) | 2014-08-11 | A kind of manufacture method of surface high connductivity heat zinc coating plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104152834A true CN104152834A (en) | 2014-11-19 |
| CN104152834B CN104152834B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724947A (en) * | 2019-10-23 | 2020-01-24 | 首钢集团有限公司 | Method and device for preparing hot-dip galvanized sheet |
| CN110743919A (en) * | 2019-10-11 | 2020-02-04 | 马鞍山钢铁股份有限公司 | Surface appearance control method of cold-rolled galvanized product |
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| JP2003080302A (en) * | 2001-09-12 | 2003-03-18 | Nkk Corp | Method for temper-rolling of galvanized steel sheet |
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| CN102716905A (en) * | 2012-06-18 | 2012-10-10 | 首钢总公司 | Method for producing cold-rolled sheet for surface coating and plating base plate |
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| JP2003080302A (en) * | 2001-09-12 | 2003-03-18 | Nkk Corp | Method for temper-rolling of galvanized steel sheet |
| CN101905240A (en) * | 2009-06-03 | 2010-12-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for finishing hot-dip coated steel sheet |
| CN102888578A (en) * | 2011-07-19 | 2013-01-23 | 宝山钢铁股份有限公司 | Method for producing hot-dip galvanized steel plate having excellent surface friction characteristics |
| CN102716905A (en) * | 2012-06-18 | 2012-10-10 | 首钢总公司 | Method for producing cold-rolled sheet for surface coating and plating base plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743919A (en) * | 2019-10-11 | 2020-02-04 | 马鞍山钢铁股份有限公司 | Surface appearance control method of cold-rolled galvanized product |
| CN110724947A (en) * | 2019-10-23 | 2020-01-24 | 首钢集团有限公司 | Method and device for preparing hot-dip galvanized sheet |
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