CN100577362C - Grinding method for stainless steel frosted plate surface - Google Patents
Grinding method for stainless steel frosted plate surface Download PDFInfo
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- CN100577362C CN100577362C CN200710185282A CN200710185282A CN100577362C CN 100577362 C CN100577362 C CN 100577362C CN 200710185282 A CN200710185282 A CN 200710185282A CN 200710185282 A CN200710185282 A CN 200710185282A CN 100577362 C CN100577362 C CN 100577362C
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Abstract
Provided is a grinding method of the surface of a high-grade stainless steel frosted plate. The steps of grinding method include that, (1) throwing pills, firstly, after a steel plate is annealed, cooled and scale broken, the steel plate is taken into a pill throwing machine, new steel pills are stopped from being added at the time of five hours earlier of the steel plate being taken into the pill throwing machine, then, when narrow materials throws pills, throwing head speed is 1850-2000 revolutions per minute, and when broad materials throws pills, throwing head speed is 1600-1700 revolutions per minute, (2) rolling overall pressure rate of a cold rolling being equals to or over 65%, (3) starting a first upper grinding head, a second upper grinding head and a third grinding head in the grinding time, firstly, the grain size of a abrasive band is polished, the new abrasive band is firstly ground to be attenuated on other steel coils, an abrasive band of the attenuation equal to or over 100 minutes and an abrasive band of the attenuation equals to or over 200 minutes, secondly, the abrasive band of the attenuation which equals to or over 100 minutes is mounted on the first upper grinding head, and then two abrasive bands of the attenuation equal to or over 200 minutes are installed on the second upper grinding head and the third grinding head to be precisely ground. The grinding method improves the surface quality of the frosted plate of the cold rolling and reduces the surface defects of the steel plate.
Description
Technical field
The present invention relates to a kind of method for grinding of stainless steel frosted plate surface.
Background technology
Stainless steel frosted plate is mainly used in industries such as goods, decoration, building, because the particularity of its purposes, stainless steel frosted plate is also very high to the requirement on surface, after entering 2006, the export volume of frosted plate constantly increases, and external frosted plate user requires strictness more to surface quality of products, not only is flawless surface quality, and length, the degree of depth and the uniformity coefficient of mill silk all had quite strict requirement.The purposes of frosted plate is very extensive, often be used to elevator decoration, building decoration, electric equipment products, cooking apparatus, decoration decoration etc., the different purposes of its product have determined the different requirements to the surface, especially the surface requirements of home and overseas is widely different, requires manufacturer to adopt different frosting technologies and formulate the different standards of dispatching from the factory with the user at different industries.In the existing stainless steel frosted plate production process, the method for grinding of stainless steel frosted plate surface is not suitable for the abrasive band of grinding stainless steel plate, and do not find the method for the granularity of adjusting the abrasive band and rational grinding speed, can't meet the quality requirement of stainless steel frosted plate surface, surface quality is poor, and defective is many.
Summary of the invention
In order to overcome the above-mentioned deficiency of the method for grinding that has stainless steel frosted plate surface now, the present invention discloses a kind of surface quality of improving cold rolling frosted plate, reduces the method for grinding of the stainless steel frosted plate surface of defective.
The main production stage of stainless steel frosted plate is: raw material annealing → cooling → scale breading → ball blast → raw material pickling → smooth → cold rolling → finished products → cooling → finished product acid-washing → smooth → grinding → smooth → shearing → packing.The present invention relates generally to the method for grinding of the stainless steel frosted plate surface in the production stage, and the step that method for grinding relates to is ball blast → cold rolling → grinding.
The method for grinding of this stainless steel frosted plate surface comprises following sequential steps:
(1) ball blast
1, will send into preceding 5 hours of shot-blasting machine producing unit through the steel plate behind raw material annealing, cooling and the scale breading, shot-blasting machine stops to add new shot.
2, in a narrow margin during (width is not in 1300mm) raw material ball blast, do not have at surface of steel plate must adopt the low speed ball blast under the prerequisite of residual oxide skin, ramming head speed is 1850-2000 rev/min, can suitably reduce the unit process speed, the steel plate speed of service 40～50m/min; Wide cut (width is not less than 1300mm) raw material is when ball blast, and ramming head speed is adjusted in the reduction of speed ratio of raw material annealing and pickling line ramming head in a narrow margin, adjusts to 1600～1700 rev/mins, the steel plate speed of service 40～50m/min.
3, the no degree of depth defective in surface is fit to the stock roll of production frosted plate, reviewer by each raw material annealing and pickling unit adds a cover " frosted plate PP Pipe Compound " seal on the coil of strip circulation card strip of paper used for sealing upper left corner, to in circulating card, coil of strip mark " frosted plate materials " in the hot line condition of production one hurdle simultaneously, at coil of strip outer ring mark " frosted plate PP Pipe Compound " printed words, and in production report, mark " frosted plate PP Pipe Compound ".
(2) cold rolling: it is rolling that the steel plate after raw material pickling peace is whole is sent into the Sendzimir cold-rolling mill, rolling total reduction ratio 〉=65%.
(3) grinding
Will through finished products, cooling, finished product acid-washing and smooth after steel plate send into the grinding of reconditioning unit.
Start three during grinding and go up bistriques,, bistrique on the bistrique and the 3rd is installed successively on the bistrique on first, second from the steel plate porch.
Require generally to be divided into two kinds (classification is material, the surface quality classification with steel plate) according to the surface quality to product (product that is formed from strip steel), a kind of is the lower product of plate surface quality, steel surface roughness R
aMaximum be 0.10, be generally 0.06～0.10, another kind is the plate surface quality high product, steel surface roughness R
aMaximum be 0.08, be generally 0.04～0.08.
For the lower product of plate surface quality, being provided with of the abrasive band on each bistrique is as follows:
1) granularity in reconditioning abrasive band, new abrasive band (Japan's " imperial crown " 80
#The abrasive band) on other coil of strips, carries out earlier the grinding decay, the abrasive band of preparing accumulative total die-away time 〉=100min, the abrasive band of preparing accumulative total die-away time 〉=200min simultaneously;
2) abrasive band that will add up die-away time 〉=100min is installed on first on the bistrique, steel plate is roughly ground cut;
3) 2 each accumulative totals are comprised die-away time to the product grinding time all 〉=abrasive band of 200min is installed on second and on the bistrique steel sheet product carried out fine ginding on the bistrique and the 3rd; Under abrasive band accumulative total service time (comprising 100 minutes die-away time) (general 900min) recession that exceeds the technological requirement time, stop using.
Can prepare totally to comprise die-away time abrasive band, this abrasive band is installed on the 3rd bistrique product is carried out fine ginding, can improve surface quality like this product grinding time 〉=300min.
Ordinary circumstance is in order to save the die-away time in abrasive band, also can play the attenuation in abrasive band in the time of to the product grinding, so the sbrasive belt grinding of bistrique time on first 〉=the 100min recession down, be installed on second on the bistrique the product fine ginding, when the sbrasive belt grinding time 〉=100min of bistrique on second (when comprising time of bistrique grinding on first should 〉=200min) recession is installed on the 3rd on the bistrique the product fine ginding down.
When steel plate is carried out double-side grinding, also start a following bistrique on three in the bistrique starting.Accumulative total die-away time 〉=the 100min in the abrasive band that following bistrique is installed.
Grinding speed in the method for grinding of this frosted plate surface is steel plate speed of service 10-13m/min.
For the plate surface quality high product, being provided with of the abrasive band on each bistrique is as follows:
1) granularity in reconditioning abrasive band, new abrasive band (Japan's " imperial crown " 80
#The abrasive band) on other coil of strips, carries out earlier the grinding decay, the abrasive band of preparing accumulative total die-away time 〉=200min, the abrasive band of preparing accumulative total die-away time 〉=300min simultaneously;
2) abrasive band that will add up die-away time 〉=200min is installed on first on the bistrique, steel plate is roughly ground cut;
3) 2 each accumulative totals are comprised die-away time to the product grinding time all 〉=abrasive band of 300min is installed on second and on the bistrique steel sheet product carried out fine ginding on the bistrique and the 3rd; Under abrasive band accumulative total service time (comprising 100 minutes die-away time) (general 900min) recession that exceeds the technological requirement time, stop using.At this moment latter two fine ginding bistrique is used with a kind of abrasive band.
Can prepare totally to comprise die-away time abrasive band, this abrasive band is installed on the 3rd bistrique product is carried out fine ginding, can improve surface quality like this product grinding time 〉=400min.At this moment latter two correct grinding bistrique is with different abrasive bands.
In order to save the die-away time in abrasive band, so the sbrasive belt grinding of bistrique time on first 〉=the 200min recession down, be installed on second on the bistrique the product fine ginding, when sbrasive belt grinding time (time that comprises bistrique grinding on first) of bistrique on second 〉=400min recession down, be installed on the 3rd on the bistrique the product fine ginding.
When steel plate is carried out double-side grinding, also start a following bistrique on three in the bistrique starting.Accumulative total die-away time 〉=the 200min in the abrasive band that following bistrique is installed, the abrasive band that accumulative total die-away time 〉=100min also can be installed as required.
Grinding speed 10-13m/min in the method for grinding of above-mentioned stainless steel frosted plate surface.
Grinding can not be carried out to production board in new abrasive band, must its granularity is diminished, and the granularity after the decay be difficult to measure through decay for a long time, can only be with reference die-away time.
The stainless steel frosted plate that the special user is required can be according to length, thickness, the depth and the steel plate finished surface roughness R of sample lines
aValue, the speed by adjusting unit (realize by 6-13m/min, abrasive band die-away time (200-400min).
After smooth and shearing, can pack.
The method for grinding of this stainless steel frosted plate surface, improved the surface quality (it is more even to compare former product mill silk) of cold rolling frosted plate, reduce the defective of frosted surface of steel plate, increased the yield rate of frosted plate, the hit rate (share the family request rate) of cold rolling frosted plate has been improved more than 4%; The present invention makes the granularity in abrasive band decay to the requirement that is suitable for the grinding stainless steel plate with the method for grinding steel plate, overcome granularity unmanageable difficult point in abrasive band in the grinding process, by control grinding belt die-away time, bistrique quantity, unit grinding speed, produce the matte surface of multiple filament length and surface roughness, satisfy various demand of user.
Description of drawings
Fig. 1 is this domestic product stainless steel frosted plate surface partial view.
Fig. 2 is a product stainless steel frosted plate surface partial view for export.
The specific embodiment
Describe the specific embodiment of the method for grinding of this stainless steel frosted plate surface in detail below in conjunction with embodiment, but the specific embodiment of the method for grinding of this stainless steel frosted plate surface is not limited to following embodiment.
Embodiment one
The present embodiment grinding be 304 for domestic stainless steel frosted plates, its surface quality is N0.4, sees Fig. 1, steel surface roughness R
aValue be 0.04～0.06.Width is 1000mm, and finished product thickness is 1.2mm.
(1) raw material ball blast
1, stopped to add new shot in preceding 5 hours with sending into the shot-blasting machine of producing unit through the steel band behind raw material annealing, cooling and the scale breading.
2, present embodiment is raw material in a narrow margin, and raw material adopts the low speed ball blast under (the surperficial noresidue oxide skin) prerequisite of beating clean surface when ball blast, and 1850 rev/mins of ramming head speed, the raw material speed of service are 50m/min.
3, the no degree of depth defective in surface is fit to the stock roll of production frosted plate, reviewer by each raw material annealing and pickling unit adds a cover " frosted plate PP Pipe Compound " seal on the coil of strip circulation card strip of paper used for sealing upper left corner, to in circulating card, coil of strip mark " frosted plate materials " in the hot line condition of production one hurdle simultaneously, at coil of strip outer ring mark " frosted plate PP Pipe Compound " printed words, and in production report, mark " frosted plate PP Pipe Compound ".
(2) cold rolling: it is rolling that the steel plate after raw material pickling peace is whole is sent into the Sendzimir cold-rolling mill, and cold rolling total deformation is 70%, and being rolled into thickness is the 1.2mm stainless-steel sheet.
(3) frosted
1) granularity in reconditioning abrasive band, new abrasive band (Japan's " imperial crown " 80
#The abrasive band) on other coil of strips, carries out earlier the grinding decay, the abrasive band of preparing accumulative total 210min die-away time, the abrasive band of preparing two accumulative total 320min die-away time simultaneously;
2) abrasive band that will add up 210min die-away time is installed on first on the bistrique, steel plate is roughly ground cut;
3) 2 each accumulative totals all are installed on second and on the bistrique steel sheet product are carried out fine ginding on the bistrique and the 3rd in the abrasive band of 320min die-away time; Reach under the 900min recession until abrasive band accumulative total service time (comprising 100 minutes die-away time) and to stop using.
4) present embodiment the speed of complete machine group be 12m/min, the effect of grinding can be referring to Fig. 1.
After smooth and shearing, can pack.
Embodiment two
The present embodiment grinding be 304 for domestic stainless steel frosted plates, its surface quality is N0.4, the difference of present embodiment and embodiment one be install on the 3rd bistrique be totally die-away time 420min the abrasive band.Other step is identical with embodiment's one.
Embodiment three
The present embodiment grinding be 304 product stainless steel frosted plates for export, its surface quality is NO.4, (the plate face of abroad wanting is thicker than domestic requirement for the model that external user provides, grinding filament length and dark.) see Fig. 2, steel surface roughness R
aValue be 0.06～0.08.Width is 1300mm, and finished product thickness is 1.0mm.
(1) raw material ball blast
1, the steel plate behind raw material annealing, cooling and the scale breading is sent into preceding 5 hours of shot-blasting machine producing unit, shot-blasting machine stops to add new shot.
2, present embodiment is the wide cut raw material, and raw material is when ball blast, and ramming head speed is adjusted in the reduction of speed ratio of raw material ramming head in a narrow margin, adjusts to 1650 rev/mins, and the raw material speed of service is 50m/min.
3, the no degree of depth defective in surface is fit to the stock roll of production frosted plate, reviewer by each raw material annealing and pickling unit adds a cover " frosted plate PP Pipe Compound " seal on the coil of strip circulation card strip of paper used for sealing upper left corner, to in circulating card, coil of strip mark " frosted plate materials " in the hot line condition of production one hurdle simultaneously, at coil of strip outer ring mark " frosted plate PP Pipe Compound " printed words, and in production report, mark " frosted plate PP Pipe Compound ".
(2) cold rolling: it is rolling to send into the Sendzimir cold-rolling mill through the steel plate after raw material pickling peace is whole, and cold rolling total deformation is 70%, and being rolled into thickness is 1.0 stainless-steel sheets.
(3) grinding
Will through finished products, cooling, finished product acid-washing and smooth after steel plate send into the grinding of reconditioning unit.
Present embodiment is the upper and lower surface grinding, opens three and goes up bistrique and a following bistrique.
1) granularity in reconditioning abrasive band, new abrasive band (Japan's " imperial crown " 80
#The abrasive band) on other coil of strips, carries out earlier the grinding decay, the abrasive band of preparing two accumulative total 150min die-away time, the abrasive band of preparing two accumulative total 250min die-away time simultaneously;
2) abrasive band that will add up 150min die-away time is installed on first on the bistrique, steel plate is roughly ground cut; Abrasive band with another accumulative total 150min die-away time is installed in down bistrique simultaneously
3) 2 each accumulative totals all are installed on second and on the bistrique steel sheet product are carried out fine ginding on the bistrique and the 3rd in the abrasive band of 250min die-away time; Reach under the 900min recession until abrasive band accumulative total service time (comprising 100 minutes die-away time) and to stop using.
4) speed of the complete machine group of present embodiment is 12m/min.
The ground effect of present embodiment can be referring to Fig. 2.
After smooth and shearing, can pack.
Embodiment four
The present embodiment grinding be 304 for domestic stainless steel frosted plates, its surface quality is N0.4, the difference of present embodiment and embodiment one be install on the 3rd bistrique be totally die-away time 350min the abrasive band.Other step is identical with embodiment's three.
After above-mentioned four embodiment produced the descaling mill and the processing of online planisher of unit at raw material, the raw steel surface roughness was R
a=3.0 μ m.The abrasive band of four embodiment can comprise die-away time in the product grinding process to the decay in abrasive band.Four embodiment three on bistrique to the requirement in abrasive band and decay respectively referring to table 1, table 2, table 3 and table 4.
Table 1
| Bistrique on first | Bistrique on second | Bistrique on the 3rd | The grinding reference velocity |
| Use the abrasive band of decay 210min, under this bistrique grinding 110min recession to second on bistrique. | Use the abrasive band of the grinding band decay 320min of company that bistrique is removed on first, connect decay and use 900min to remove altogether to stop using interior | Use the abrasive band of the grinding band decay 310min of company that bistrique is removed on first or the abrasive band of the 320min that always decays, connect decay and use 900min to remove altogether to stop using interior | 10-13m/min |
Table 2
| Bistrique on first | Bistrique on second | Bistrique on the 3rd | The grinding reference velocity |
| Use the abrasive band of decay 210min, grinding 110min recession is bistrique on second down | Use the abrasive band of the grinding band decay 320min of company that bistrique is removed on first, bistrique on this bistrique grinding 100min removes down to the 3rd | Use the abrasive band of the grinding band decay 420min of company that bistrique is removed on second or the abrasive band of the 420min that always decays, connect decay and use 900min to remove altogether to stop using interior | 10-13m/min |
Table 3
| Bistrique on first | Bistrique on second | Bistrique on the 3rd | The grinding reference velocity |
| Use the abrasive band of decay 150min, under this bistrique grinding 100min recession to second on bistrique. | Use the abrasive band of the grinding band decay 250min of company that bistrique is removed on first, connect decay and use 900min to remove altogether to stop using interior | Use the abrasive band of the grinding band decay 250min of company that bistrique is removed on first or the abrasive band of the 250min that always decays, connect decay and use 900min to remove altogether to stop using interior | 10-13m/min |
Table 4
| Bistrique on first | Bistrique on second | Bistrique on the 3rd | The grinding reference velocity |
| Use the abrasive band of decay 150min, under this bistrique grinding 100min recession to second on bistrique. | Use the abrasive band of the grinding band decay 250min of company that bistrique is removed on first, bistrique uses on this bistrique use 100min removes down to the 3rd | Use the abrasive band of the grinding band decay 350min of company that bistrique is removed on second or the abrasive band of the 350min that always decays, connect decay and use 900min to remove altogether to stop using interior | 10-13m/min |
Annotate:
The raw material steel grade that the stainless steel frosted plate PP Pipe Compound refers to be usually used in to produce stainless steel frosted plate has 0Cr18Ni9 and 1Cr17, and what mention in the specification all is the 0Cr18Ni9 steel grade, and finished product is meant the steel plate that mill can dispatch from the factory after good.
The present specification grinding is with Japan's " imperial crown " 80
#Implement in the abrasive band.
Claims (7)
1, a kind of method for grinding of stainless steel frosted plate surface, it comprises following sequential steps:
(1) ball blast
I) will send into preceding 5 hours of shot-blasting machine producing unit through the steel plate behind raw material annealing, cooling and the scale breading, shot-blasting machine stops to add new shot;
II) in a narrow margin during the raw material ball blast, do not have at surface of steel plate to use the low speed ball blast under the prerequisite of residual oxide skin, ramming head speed is 1850-2000 rev/min, and the steel plate speed of service is 40～50m/min; During wide cut raw material ball blast, ramming head speed is 1600～1700 rev/mins, and the steel plate speed of service is 40～52m/min;
(2) cold rolling: it is rolling that the steel plate after raw material pickling peace is whole is sent into the Sendzimir cold-rolling mill, rolling total reduction ratio 〉=65%;
(3) grinding
Will through finished products, cooling, finished product acid-washing and smooth after steel plate send into the grinding of reconditioning unit; Start three during grinding and go up bistriques,, bistrique on the bistrique and the 3rd is installed successively on the bistrique on first, second from the steel plate porch; Being provided with of abrasive band on each bistrique is as follows:
I) granularity in reconditioning abrasive band, Japanese imperial crown 80
#The grinding decay is carried out earlier in new abrasive band on other coil of strips, the abrasive band of preparing accumulative total die-away time 〉=100min, the abrasive band of preparing accumulative total die-away time 〉=200min simultaneously;
II) abrasive band that will add up die-away time 〉=100min is installed on first on the bistrique, steel plate is roughly ground cut;
III) 2 each accumulative totals are comprised die-away time to the product grinding time all 〉=abrasive band of 200min is installed on second and on the bistrique steel sheet product is carried out fine ginding on the bistrique and the 3rd.
2, the method for grinding of stainless steel frosted plate surface according to claim 1 is characterized in that: what bistrique was installed on the 3rd is the abrasive band that totally comprises die-away time product grinding time 〉=300min.
3, the method for grinding of stainless steel frosted plate surface according to claim 1 and 2 is characterized in that: on the bistrique abrasive band that adds up die-away time 〉=100min is being installed down, stainless net frosted plate face is carried out double-side grinding up and down.
4, the method for grinding of stainless steel frosted plate surface according to claim 1, it is characterized in that on each bistrique the abrasive band be provided with as follows:
I) during the granularity in reconditioning abrasive band, prepare the abrasive band of accumulative total die-away time 〉=200min, prepare the abrasive band of accumulative total die-away time 〉=300min simultaneously;
II) abrasive band that will add up die-away time 〉=200min is installed on first on the bistrique, steel plate is roughly ground cut;
III) 2 each accumulative totals are comprised die-away time to the product grinding time all 〉=abrasive band of 300min is installed on second and on the bistrique steel sheet product is carried out fine ginding on the bistrique and the 3rd.
5, the method for grinding of stainless steel frosted plate surface according to claim 4 is characterized in that: what bistrique was installed on the 3rd is the abrasive band that totally comprises die-away time product grinding time 〉=400min.
6, according to the method for grinding of claim 4 or 5 described stainless steel frosted plate surfaces, it is characterized in that: on the bistrique abrasive band that adds up die-away time 〉=100min is being installed down, stainless net frosted plate face is carried out double-side grinding up and down.
7, according to the method for grinding of claim 4 or 5 described stainless steel frosted plate surfaces, it is characterized in that: on the bistrique abrasive band that adds up die-away time 〉=200min is being installed down, stainless net frosted plate face is carried out double-side grinding up and down.
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| CN103331675B (en) * | 2013-06-20 | 2016-05-18 | 江苏华力金属材料有限公司 | NO.4 line corrosion resistant plate processing technology for a kind of ladder apron plate low-friction coefficient |
| CN103341813B (en) * | 2013-06-20 | 2015-12-09 | 江苏华力金属材料有限公司 | A kind of processing technology of ladder apron plate low-friction coefficient HL line corrosion resistant plate |
| CN104002227A (en) * | 2014-04-30 | 2014-08-27 | 深圳市大族激光科技股份有限公司 | Method for grinding stainless steel mirror surface |
| CN106002568B (en) * | 2016-05-25 | 2018-05-08 | 振石集团东方特钢有限公司 | A kind of stainless steel slab head base thinning technique |
| CN108950159A (en) * | 2018-06-22 | 2018-12-07 | 宁波宝新不锈钢有限公司 | A kind of manufacturing method of the two-sided surface the BA stainless steel of cold rolling SUS304 |
| CN108857591A (en) * | 2018-06-27 | 2018-11-23 | 张家港浦项不锈钢有限公司 | A kind of preparation method of 304 stainless steel thickness material mirror surface |
| CN109676441A (en) * | 2019-01-18 | 2019-04-26 | 株洲金佰利硬质合金有限公司 | A kind of hard-alloy grinding technique |
| CN113102506A (en) * | 2021-03-30 | 2021-07-13 | 天津太钢天管不锈钢有限公司 | Manufacturing method of austenitic stainless steel |
| CN115091320B (en) * | 2022-07-11 | 2024-04-02 | 山西太钢不锈钢股份有限公司 | Preparation method of stainless steel grinding panel for carriage |
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