CN104018107A - Device and method for controlling sizes of spangles - Google Patents
Device and method for controlling sizes of spangles Download PDFInfo
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- CN104018107A CN104018107A CN201410296488.7A CN201410296488A CN104018107A CN 104018107 A CN104018107 A CN 104018107A CN 201410296488 A CN201410296488 A CN 201410296488A CN 104018107 A CN104018107 A CN 104018107A
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Abstract
The invention discloses a device and method for controlling the sizes of spangles, relating to continuous hot galvanizing processes. The device and the method are used for solving the problem that a lot of wastes can be produced due to the fact that the sizes of the spangles can not be changed timely during continuous hot galvanizing. The device comprises a fixed part, a placement part and an antimony block, wherein the fixed part is inverted-U-shaped, one end of the fixed part serves as a gripping portion, the other end of the fixed part serves as a connecting portion, the placement part is formed by a long sidewall, three short sidewalls and a bottom plate through enclosing, a placement chamber with an open upper end is formed by the sidewalls and the bottom plate, the placement part is formed through bending an integral steel plate, the tail end of the long sidewall is connected with the connecting portion of the fixed part, and the placement part is made from a stainless-steel 316 material; the antimony block is located in the placement chamber. According to the device and the method, through controlling the content of antimony in liquid zinc, the quick switching of the spangles is guaranteed, and the quality of products and the stable operation of production are ensured, so that different requirements of customers are met.
Description
Technical field
the present invention relates to the equipment using in continuously dip coat zinc technology, specifically a kind of device and method that is used for controlling zinc flower size.
Background technology
pot galvanize product wants to obtain the zinc floral structure of surface aesthetic, must in zinc liquid, add alloying element.The alloying element adding is divided into two large classes, and a class has sufficiently soluble in fused zinc, and in solid zinc, almost there is no solubility, for example: lead and bismuth; Another kind of all have certain solubility in liquid Zn and solid zinc, for example: tin, aluminium, copper, antimony etc.At present a lot of steel mills adapt to the environmental requirement of user to coating, change antimony into gradually adding lead element in zinc liquid.
zinc liquid from adhering to band steel in being cooled to below fusing point (approximately 419 DEG C) during this period of time, zinc flower has experienced forming core and dendroid two processes of growing up, at zinc layer solidificating period, in the coarsening rate of dendrite and liquid Zn, the forming core speed of new nucleus is inconsistent, this process can determine the final size size of whole crystalline structure, in process of setting, dendroid coarsening rate accounts for leading role compared with forming core speed, thereby has determined that quantity of formation is how many in whole zinc layer.The growth needs regular hour of zinc flower, the speed of cooling of the zinc liquid of belt steel surface in process of setting is faster, and zinc flower size is less, and speed of cooling is slower, and zinc flower size is larger.
in zinc liquid composition, containing Al, Sb alloying element, is to possess the prerequisite that zinc flower forms, and meanwhile, when in the situation of other stable process conditions, the height of Sb content in zinc liquid, affects significantly the size that forms zinc flower.Generally, while producing large zinc flower galvanized sheet, in zinc liquid, Sb content general control, 0.06～0.09%, is produced minimum spangle galvanizing plate Sb content general control 0.02～0.04%, and no zinc flower hot dip galvanized sheet Sb content is less than 0.015%.Be generally that zinc layer is thicker, the zinc flower of formation is larger.
the flower-shaped state of product zinc directly determining the market orientation of production line and producer to.The flower-shaped state of zinc corresponding to difference of galvanization production line zinc liquid composition, needs certain transit time and a large amount of transition volumes by the adjustment of whole zinc pot zinc liquid composition merely, and this has just reduced production efficiency and has improved production cost, has restricted enterprise development.Because the arrangement of the production program need to be considered production specification, zinc coating thickness, time of delivery and the situation etc. of getting the raw materials ready, in the same production program, can arrange different zinc floral structure to intert and carry out, therefore be badly in need of a kind of zinc of can adjusting fast and effectively and spend big or small device.
Summary of the invention
the object of the present invention is to provide a kind of device that is used for controlling zinc flower size, in solution continuous hot galvanizing process, can not change in time zinc and spend size, and can produce the problem of a lot of waste materials.
the technical solution adopted for the present invention to solve the technical problems is: a kind of device that is used for controlling zinc flower size, it is characterized in that, comprise fixed part, placing part and antimony regulus, described fixed part is inverted U-shaped, one end is that handle part one end is connection section, described placing part is surrounded by a long sidewall, three short sidewalls and a base plate, sidewall and base plate form the object placing cavity of a upper end open, placing part is formed by an integral plate bending, long sidewall end is connected with the connection section of fixed part, and described placing part adopts 316 stainless materials; Antimony regulus is positioned at object placing cavity.
the connection section of described glove minister sidewall end and fixed part is welded and fixed.
described glove minister sidewall end is flexibly connected with fixed part, the connection section of fixed part is two parallel connecting rods, the side that connecting rod is relative is provided with groove, the both sides of glove minister sidewall can snap in groove, the symmetrical adjustment bolt that is provided with on connecting rod, adjust bolt and penetrate in groove by link sidewalls and prop up long sidewall, described adjustment bolt is at least provided with one group.
there is one deck anti-corrosion protection layer on described placing part surface.
described placing part surface spraying has metal-ceramic coating.
the handle part of described fixed part is provided with collet.
a method that is used for controlling zinc flower size, comprises the following steps:
1)
the roughness that ensures cold-rolled substrate is stable,
2)
cold-rolled substrate surface cleaning cleaner,
3)
going out zinc pot steel belt plate shape when better, by air knife cutter lip near steel band,
4)
ensure stopping property and the furnace atmosphere of stove, dew point: MI101, MI102 in stove≤-30 DEG C; MI103≤-40 DEG C; O2 content≤10ppm;
5)
in the time that needs are produced large zinc flower, the last coil of strip of producing large zinc flower hangs over fixed part on air knife frame, makes the antimony regulus in placing part be immersed in zinc pot upper surface, and placing part is positioned at the position that steel band takes the dish out of the pot.
6)
the size of spending according to customer requirement zinc determines the time length that antimony regulus immerses, and the time that the zinc needing spends the larger antimony regulus of size to immerse is longer.
7)
in the time that needs are produced small zinc flower, this device is taken off.
further, can in zinc pot, add according to demand 2-3 placing part that contains antimony regulus.
the invention has the beneficial effects as follows: 1. increase this device, the antimony content in the control zinc liquid of science, ensures the quick switching of zinc flower, guarantees the steady running of quality product and production, thereby meets client's different requirements.2. reduce the diffusion of antimony, form local high concentration region on zinc pot surface, thereby realize, zinc is spent to big or small control.3. improve economic benefit, reduced production cost.
Brief description of the drawings
fig. 1 is embodiments of the invention one structural representations,
fig. 2 is embodiments of the invention two structural representations.
in figure: 1 fixed part, 11 handle parts, 12 connection sections, 13 grooves, 14 adjust bolt, 2 placing parts, 21 object placing cavities, 22 long sidewalls, 3 antimony regulus.
Embodiment
as shown in Figure 1, a kind of device that is used for controlling zinc flower size, comprise fixed part 1, placing part 2 and antimony regulus 3, described fixed part 1 is inverted U-shaped, and one end is that handle part 11 one end are connection section 12, and described placing part 2 is surrounded by a long sidewall 22, three short sidewalls and a base plate, sidewall and base plate form the object placing cavity 21 of a upper end open, placing part 2 is formed by an integral plate bending, and long sidewall 22 ends are connected with the connection section of fixed part, and described placing part 2 adopts 316 stainless materials; Antimony regulus 3 is positioned at object placing cavity 21.
embodiment mono-, the connection section 12 of long sidewall 22 ends of placing part 2 and fixed part 1 is welded and fixed, and when placement, directly fixed part 1 is hung on air knife frame, and placing part 2 is put into zinc pot, makes antimony regulus be positioned at the position that steel band takes the dish out of the pot.
embodiment bis-, long sidewall 22 ends of placing part 2 are flexibly connected with fixed part 1, the connection section 12 of fixed part 1 is two parallel connecting rods, the side that connecting rod is relative is provided with groove 13, the both sides of the long sidewall 22 of placing part 2 can snap in groove 13, on connecting rod, bolt 14 is adjusted in symmetrical being provided with, and adjusts bolt 14 and penetrates in groove 13 by link sidewalls and prop up long sidewall 22, and described adjustment bolt 14 is at least provided with one group.Be flexibly connected by employing, can adjust the length of this device, be convenient to adapt to zinc pot and the tool holder height of different size.
further, because this device is put into zinc pot, in order to prevent that fixed part 1 is overheated is inconvenient to change because heat transmission causes, on the handle part 11 of fixed part 1, be also provided with collet 15, prevent that staff from scalding.
the fusing point of zinc is 419.58 DEG C, and from Fe-Zn alloy phase diagram, iron can form Fe-Zn alloy phase in zinc liquid, and temperature rising, and Fe-Zn alloy trim point increases direction to iron-holder and moves, the corrosion aggravation of zinc to iron.The corrosion that prevents liquid zinc is mainly the diffusion that prevents zinc, how to improve material liquid zinc corrosion resistant ability, according to liquid zinc corrosion mechanism, the approach that improves ferrous alloy molten zinc corrosion resistant is the iron zinc mutual reactance delaying under hot conditions, therefore will improve material liquid zinc corrosion resistant ability.
for control and stable zinc liquid in foreign matter content, according to the temperature of zinc liquid, select the material of setting device.Through the detection of test of many times and zinc liquid composition, determine that selected material is 316 stainless steels. owing to avoiding being subject to the erosion of zinc liquid, the lowermost part of device immerses zinc liquid part avoids existing weld seam as far as possible, and foot must carry out bending and molding for this reason, and exposed parts allows to exist part weld seam.Whole size can be done a small amount of adjustment, is mainly to determine to the height of zinc liquid level according to the size of purchased little zinc ingot metal and support.
if further reduce and corrode in addition, also can prepare the protective layer of anti-fused zinc corrosion.From the angle stoping, feasible scheme has spray coating metal ceramic coating.Cover a protective layer not reacting with zinc at steel surface, steel substrate and zinc liquid are separated, can stop the corrosion of zinc liquid to iron and steel, for example, adopt hot spray coating to stop the corrosion of zinc liquid to iron and steel.
during producing small zinc flower, if be interspersed with the normal zinc flower production program, but ensure that again the small zinc flower production program below meets the requirements, in this case, this device is come into operation, add little antimony slab, under the effect of device, only the little antimony slab of the bottom contact of use zinc liquid part is along with the rising of temperature is in continuous dissolving, the dissolution rate of little antimony slab is slow, and control the antimony content of the zinc liquid of the close steel band in top position in zinc pot, under the effect of antimony content, be aided with again the adjustment of various process parameters, thereby ensure the flexible switching of normal zinc flower and small zinc flower.
optimizing and revising of various process parameters
A,
the roughness that ensures substrate is stable.
b, cold-rolled substrate surface cleaning cleaner, plate face reflectivity is higher, and zinc flower is larger, while therefore requiring zinc flower larger, must propose higher requirement to base-plate cleaning quality;
c, zinc flower is required when large, improve the zinc pot temperature that enters of steel band, otherwise reduce;
d, zinc flower is required when large, improve the temperature of zinc pot, otherwise reduce;
e, steel band exceed thick, and speed is slower, and plate face zinc liquid setting time is longer, and zinc flower is larger;
f, in air knife control, require to reduce as far as possible air knife apart from zinc liquid level distance, going out zinc pot steel belt plate shape when better, as far as possible by air knife cutter lip near steel band, like this, be not only conducive to control thin zinc layer, but also be conducive to the formation of large zinc flower.
stopping property and the furnace atmosphere of g, guarantee stove
dew point: MI101, MI102 in stove≤-30 DEG C; MI103≤-40 DEG C; O2 content≤10ppm.
spend the dissolving diffusion time of big or small present situation and antimony according to zinc, determine the time of throwing in this device.Generally just throw in this equipment at the last coil of strip of producing normal zinc flower, fixed part 1 is hung over to the upper of air knife frame, for ensureing the even of whole plate face, can add two to three devices.According to client, zinc is spent to big or small requirement, release time that can control device, because this device volume is less, therefore throw in and regain easily, can not have influence on fishing for of cadmia simultaneously yet.
coming into operation of the method, has mainly improved economic benefit from the following aspects, has reduced production cost:
if do not adopt the method, adjust merely zinc liquid composition, need a large amount of transitional products, from small zinc flower to normal zinc, flower switching need to approximately 500 tons of Transition Materials, approximately need 6000 tons of Transition Materials from normal zinc flower to small zinc flower transition, these transitional products do not meet customer requirement because of zinc flower, so need to consult with client, 100 yuan of price reduction per ton, by monthly adjusting 1 calculating, use after this device, reduce transitional product, quality product Integral lifting, it is as follows that can increase direct economic benefit the whole year:
ten thousand yuan of direct economic benefit=6500 × 100 × 12=78()
by adopting the method, optimize breed structure, increase the scope of order, expand customer group, can increase every year approximately 300,000 yuan of indirect economic effects.
total ten thousand yuan of economic benefit=78+30=108 that increase
in sum, since the method practical application, reduce production cost and improved again plate face quality, obtained obvious economic benefit, saved every year 1080000 yuan.The method also has larger reference function, has played positive effect to expanding kind and the class of product, has good economic benefit and application prospect widely, meets the trend of current breed structure optimization.
Claims (8)
1. one kind is used for controlling the device of zinc flower size, it is characterized in that, comprise fixed part, placing part and antimony regulus, described fixed part is inverted U-shaped, and one end is that handle part one end is connection section, and described placing part is surrounded by a long sidewall, three short sidewalls and a base plate, sidewall and base plate form the object placing cavity of a upper end open, placing part is formed by an integral plate bending, and long sidewall end is connected with the connection section of fixed part, and described placing part adopts 316 stainless materials; Antimony regulus is positioned at object placing cavity.
2. a kind of device that is used for controlling zinc flower size according to claim 1, is characterized in that, the connection section of described glove minister sidewall end and fixed part is welded and fixed.
3. a kind of device that is used for controlling zinc flower size according to claim 1, it is characterized in that, described glove minister sidewall end is flexibly connected with fixed part, the connection section of fixed part is two parallel connecting rods, the side that connecting rod is relative is provided with groove, and the both sides of glove minister sidewall can snap in groove, the symmetrical adjustment bolt that is provided with on connecting rod, adjust bolt and penetrate in groove by link sidewalls and prop up long sidewall, described adjustment bolt is at least provided with one group.
4. according to a kind of device that is used for controlling zinc flower size described in the arbitrary claim of claim 1-3, it is characterized in that, there is one deck anti-corrosion protection layer on described placing part surface.
5. a kind of device that is used for controlling zinc flower size according to claim 4, is characterized in that, described placing part surface spraying has metal-ceramic coating.
6. a kind of device that is used for controlling zinc flower size according to claim 1, is characterized in that, the handle part of described fixed part is provided with collet.
7. a method that is used for controlling zinc flower size, comprises the following steps:
1) roughness that ensures cold-rolled substrate is stablized,
2) cold-rolled substrate surface cleaning is cleaner,
3) going out zinc pot steel belt plate shape when better, by air knife cutter lip near steel band,
4) stopping property and the furnace atmosphere of guarantee stove, dew point: MI101, MI102 in stove≤-30 DEG C; MI103≤-40 DEG C; O2 content≤10ppm;
5) in the time that needs are produced large zinc flower, the last coil of strip of producing large zinc flower hangs over fixed part on air knife frame, makes the antimony regulus in placing part be immersed in zinc pot upper surface, and placing part is positioned at the position that steel band takes the dish out of the pot.
6) size of spending according to customer requirement zinc determines the time length that antimony regulus immerses, and the time that the zinc needing spends the larger antimony regulus of size to immerse is longer.
7) in the time that needs are produced small zinc flower, this device is taken off.
8. a kind of method that is used for controlling zinc flower size according to claim 7, is characterized in that, can in zinc pot, add according to demand 2-3 placing part that contains antimony regulus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410296488.7A CN104018107B (en) | 2014-06-27 | 2014-06-27 | A kind of being used for controls the device and method that zinc spends size |
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| CN201410296488.7A CN104018107B (en) | 2014-06-27 | 2014-06-27 | A kind of being used for controls the device and method that zinc spends size |
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| CN104018107A true CN104018107A (en) | 2014-09-03 |
| CN104018107B CN104018107B (en) | 2016-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048487A (en) * | 2016-08-18 | 2016-10-26 | 攀钢集团攀枝花钢钒有限公司 | Spangle control method of hot dip galvanizing large spangle products in different strip steel thicknesses |
| CN106319416A (en) * | 2016-11-11 | 2017-01-11 | 攀钢集团攀枝花钢钒有限公司 | Control method for zinc spangle size of hot-dip aluminum and zinc coated steel plate |
| CN106521522A (en) * | 2016-11-11 | 2017-03-22 | 攀钢集团攀枝花钢钒有限公司 | Method for producing hot-dipped aluminum-zinc coated steel sheets with uniform spangle sizes |
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| CN202039114U (en) * | 2011-03-31 | 2011-11-16 | 芜湖恒达薄板有限公司 | Control device with spangles on clad layer of strip steel |
| CN202849524U (en) * | 2012-09-11 | 2013-04-03 | 天津市宇润德金属制品有限公司 | Aluminum melting immersing frame |
| CN103160766A (en) * | 2013-03-23 | 2013-06-19 | 鞍钢股份有限公司 | Method for controlling size of spangles |
| CN203904433U (en) * | 2014-06-27 | 2014-10-29 | 济钢集团有限公司 | Device used for controlling spangle sizes |
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2014
- 2014-06-27 CN CN201410296488.7A patent/CN104018107B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202039114U (en) * | 2011-03-31 | 2011-11-16 | 芜湖恒达薄板有限公司 | Control device with spangles on clad layer of strip steel |
| CN202849524U (en) * | 2012-09-11 | 2013-04-03 | 天津市宇润德金属制品有限公司 | Aluminum melting immersing frame |
| CN103160766A (en) * | 2013-03-23 | 2013-06-19 | 鞍钢股份有限公司 | Method for controlling size of spangles |
| CN203904433U (en) * | 2014-06-27 | 2014-10-29 | 济钢集团有限公司 | Device used for controlling spangle sizes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048487A (en) * | 2016-08-18 | 2016-10-26 | 攀钢集团攀枝花钢钒有限公司 | Spangle control method of hot dip galvanizing large spangle products in different strip steel thicknesses |
| CN106319416A (en) * | 2016-11-11 | 2017-01-11 | 攀钢集团攀枝花钢钒有限公司 | Control method for zinc spangle size of hot-dip aluminum and zinc coated steel plate |
| CN106521522A (en) * | 2016-11-11 | 2017-03-22 | 攀钢集团攀枝花钢钒有限公司 | Method for producing hot-dipped aluminum-zinc coated steel sheets with uniform spangle sizes |
| CN106521522B (en) * | 2016-11-11 | 2018-12-28 | 攀钢集团攀枝花钢钒有限公司 | A method of production has uniform spangle size hot-dip aluminizing zincium steel plate |
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| CN104018107B (en) | 2016-04-13 |
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