CN101086046B - Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method - Google Patents
Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method Download PDFInfo
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- CN101086046B CN101086046B CN2007100353145A CN200710035314A CN101086046B CN 101086046 B CN101086046 B CN 101086046B CN 2007100353145 A CN2007100353145 A CN 2007100353145A CN 200710035314 A CN200710035314 A CN 200710035314A CN 101086046 B CN101086046 B CN 101086046B
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Abstract
The invention relates to a zinc alloy for steel component galvanizing, the ingot shape and the method. The comprised component and weight proportion are as follows: 0.008%-0.012%(wt)Al,0.02%-0.08%(wt)Bi, the rest is zinc and unavoidable impurities. The ingot shape is 'T' cuboid with two symmetrical ear-warps, the bottom of cuboid is plane, ear-warps are equipped with hoisting holes, and the four sides are inclined plane which is narrow-end-up shape. It is characterized by direct fusion of the alloy to zinc bath, simple utilization, stable and homogeneous Al and Bi content in zinc alloy, improved coating brightness and zinc flowability, decreased coating thickness, and saved zinc plating cost. The proper zinc alloy ingot shape and weight meets the demand of zinc addition for large-capacity galvanizing equipment, and it is convenient for hoisting and cross transportation, specific surface area is small, which is suitable for multi-layer stacking storage.
Description
Technical field
The present invention relates to a kind of zinc alloy and hot dip galvanizing method thereof and hot-dip aluminum zinc bismuth alloy ingot thereof, particularly be used for hot dip galvanizing of steel and iron members with zinc alloy and method and hot-dip aluminum zinc bismuth alloy ingot thereof.
Background technology
The galvanizing industry all adopts zinc alloy baths zinc-plated both at home and abroad at present, and not only improvement produces effect the Zn-Al-Bi alloy very much to the coating luminance brightness, can also obviously improve the flowability that zinc is bathed, and reduces thickness of coating, for the ideal galvanizing is used zinc alloy.Zinc alloy baths is normally prepared with zinc alloy in the production scene before use.Because the general volume of steel and iron member is bigger, the volume that steel and iron member is carried out galvanized used zinc bath equipment is also bigger, and required zinc bath amount is many, and the preparation difficulty that zinc is bathed is bigger.Hot dip galvanizing of steel and iron members zinc bath compound method is at present: at first zinc ingot metal is melted in the zinc pot, in the zinc pot, dilutes by a certain percentage with about every 10 kilograms Zn-Al-Bi intermediate alloy ingot then, obtain the needed zinc of galvanizing and bathe composition.The method of this on-the-spot preparation has proposed higher requirement to its operator, requires it to possess certain zinc-plated knowwhy, and the addition of various materials is answered accurate measurement; Reply zinc is bathed composition and is detected, and could guarantee that the final zinc bath composition that forms meets request for utilization, and present factory does not mostly possess above-noted persons and testing conditions; Be difficult to accurately hold addition, it is too much, very few and alloy element component that cause is inhomogeneous to occur alloy adding inevitably, and it is unclear to cause the final zinc that forms to bathe composition; Even possess above-mentioned condition, these materials generally all are difficult to reach abundant fusion, mixed uniformly state in process for preparation; Cause in the zinc bath and produce various elements segregation; Density difference like alloying element aluminium and bismuth is big, and gravity segregation is serious, is prone to cause composition irregular; The utilization ratio of alloying element aluminium and bismuth is not high, and practical effect is undesirable.
Usually ZINC ALLOY be shaped as cuboid, alloy pig generally heavily divides little ingot and two kinds on big ingot by ingot in the market, little ingot generally is 20～25kg/ piece, big ingot is generally between 1000kg～2000kg/ piece.Because its ingot is simple cuboid, no lifting hole(eyelet) can not directly lift, can only be from the bottom fork fortune, extremely inconvenient, pile stable bad, the multilayer pile that is unfavorable for storing in a warehouse, required storage space is bigger, little ingot is easy stolen in transit.Zinc-plated zinc-plated with steel and iron member for the broadband, because that wide steel strip and steel and iron member take up space is bigger, production capacity is big, and it is also bigger that it is carried out zinc-plated required volume of equipment; Required zinc alloy is more, and when adopting the fritter ZINC ALLOY, because the alloy pig ingot shape is too little, the frequency of interpolation is too many; Addition is wayward, and labour intensity is big, and the alloy pig surface-area is big; The zinc oxide slag output capacity is high, has increased zinc-plated manufacturer production cost, is unfavorable for production process control.The primary alloy piece needs just to make things convenient for transportation behind the bailing.
In sum, prior art does not provide to be used simply, is applicable to the composition that hot dip galvanizing of steel and iron members is used and the zinc alloy of ingot shape, to improve the coating luminance brightness, improves the flowability that zinc is bathed, and reduces thickness of coating.
Summary of the invention
The object of the present invention is to provide a kind of zinc alloy that hot dip galvanizing of steel and iron members is used that is used for; It can directly be fused into the zinc that is applicable to hot dip galvanizing of steel and iron members and bathe in galvanizing equipment, simple to operate, makes zinc bath alloying element aluminium and the bi content prepared stable, even; To improve the coating luminance brightness; Improve the flowability that zinc is bathed, reduce thickness of coating, reduce zinc-plated cost.
Another object of the present invention is to provide a kind of ZINC ALLOY that hot dip galvanizing of steel and iron members is used that is used for, and it has suitable shape and ingot is heavy, can satisfy the requirement of large vol galvanizing equipment zincification; Convenient lifting; Be convenient to fork fortune, specific surface area is little, is fit to storage multilayer pile; Save the storage space, the advantage of stability and safety.
Another object of the present invention is to provide a kind of hot dip galvanizing of steel and iron members method, and it has simple to operate, zinc, and to bathe alloying element content stable, evenly, and the good fluidity that zinc is bathed reduces thickness of coating, reduces zinc-plated cost.
Technical scheme of the present invention is:
A kind of hot-dip aluminum zinc bismuth alloy that is used for hot dip galvanizing of steel and iron members, its composition and weight percent are 0.008%～0.012% (wt) Al, 0.02%～0.08% (wt) Bi, and all the other are zinc and unavoidable impurities.
A kind of hot-dip aluminum zinc bismuth alloy ingot that is used for hot dip galvanizing of steel and iron members, it is to have two symmetrical ears to stick up 3 the rectangular zinc ingot metal body 1 of " T " shape, the last plane of zinc ingot metal body 1 and bottom are the plane.
As to further improvement of the present invention, described galvanizing alloy pig ingot heavily is 900～1100kg, and the ingot length L is 1160～1200mm, and width B is 580～600mm, and height H is 260～300mm.
A kind of hot dip galvanizing of steel and iron members method adopts above-mentioned hot-dip aluminum zinc bismuth alloy to bathe as zinc.
Beneficial effect of the present invention is:
The present invention with hot dip galvanizing of steel and iron members and needed aluminium and bismuth alloy element by optimum content and the requirement of desirable result of use prepare; Be cast into the ingot about 1 ton; Use producer directly ingot to be dropped into fusing use in the zinc bath equipment; It is too much, very few and the alloy element component non-uniform phenomenon that causes is avoided the alloying element scaling loss to avoid occurring alloy adding, ensures that zinc bathes the interalloy element aluminum and stablize with bi content; Greatly reduce the personnel of use producer and the requirement of testing conditions, simplified schedule of operation.Because aluminium and bismuth alloy constituent content are suitable, good flowing properties, coating is even, and coating etch resistant properties and good mechanical property guarantee galvanizing quality;
Because the basis of the present invention's rectangular parallelepiped is provided with two symmetric ears and sticks up, alloy pig area broad in the middle lands, stability and safety, effective storage space of reducing; Ear sticks up and can be used as fork fortune strut member, is convenient to fork truck fork fortune and pile, because ear sticks up and also is provided with lifting hole(eyelet), is convenient to factory's lifting charging.Because the specific surface area of ingot is less, it is big and the oxide compound that forms reduces oxidation sludge rate 0.5%～1% to reduce outer surface area preferably, and the concentrated shrinkage cavity that alloy pig is formed in casting technique can play certain effect that alleviates.Because the side is the inclined-plane, the demoulding in being convenient to produce.
Description of drawings
Fig. 1 is the front view of hot-dip aluminum zinc bismuth alloy ingot of the present invention;
Fig. 2 is the left view of hot-dip aluminum zinc bismuth alloy ingot of the present invention;
Fig. 3 is the vertical view of hot-dip aluminum zinc bismuth alloy ingot of the present invention.
Among the figure: 1-zinc ingot metal body, the 2-lifting hole(eyelet), the 3-ear sticks up.
Embodiment
Embodiment 1:
The hot-dip aluminum zinc bismuth alloy that is used for hot dip galvanizing of steel and iron members, it consists of 0.008% (wt) Al; 0.02% (wt) Bi; All the other are zinc and unavoidable impurities.
Hot-dip aluminum zinc bismuth alloy ingot is to have two symmetrical ears to stick up 3 the rectangular zinc ingot metal body 1 of " T " shape, and the last plane of zinc ingot metal body 1 and bottom are the plane.One of them ear sticks up 3 and is provided with lifting hole(eyelet) 2.Four sides of zinc ingot metal body 1 are the inclined-plane, and cross section is greater than lower cross section on the zinc ingot metal body 1, and ingot heavily is 900kg, and ingot body length L is 1160mm, and width B is 580mm, and height H is 260mm.
Adopt above-mentioned hot-dip aluminum zinc bismuth alloy ingot to the steel hot dip galvanizing of steel and iron members, ZINC ALLOY is fused into zinc bathes, it is stable, even that gained zinc is bathed alloying element content, good fluidity.
Embodiment 2:
The hot-dip aluminum zinc bismuth alloy that is used for hot dip galvanizing of steel and iron members, it consists of 0.012% (wt) Al; 0.08% (wt) Bi; All the other are zinc and unavoidable impurities.
Hot-dip aluminum zinc bismuth alloy ingot sticks up the rectangular zinc ingot metal body 1 of 3 " T " shape for having two symmetrical ears, and the last plane of zinc ingot metal body 1 and bottom are the plane.Two ears stick up and are provided with lifting hole(eyelet) 2 on 3.Four sides of zinc ingot metal body 1 are the inclined-plane, and cross section is greater than lower cross section on the zinc ingot metal body 1, and ingot heavily is 1100kg, and ingot body length L is 1200mm, and width B is 600mm, and height H is 300mm.
Adopt above-mentioned alloy pig to the steel hot dip galvanizing of steel and iron members, ZINC ALLOY is fused into zinc bathes, it is stable, even that gained zinc is bathed alloying element content, good fluidity.
The hot-dip aluminum zinc bismuth alloy that is used for hot dip galvanizing of steel and iron members, it consists of 0.008% (wt) Al; 0.08% (wt) Bi; All the other are zinc and unavoidable impurities.
Ingot shape is with embodiment 1.
Adopt above-mentioned alloy pig to the steel hot dip galvanizing of steel and iron members, ZINC ALLOY is fused into zinc bathes, it is stable, even that gained zinc is bathed alloying element content, good fluidity.
Embodiment 4
The hot-dip aluminum zinc bismuth alloy that is used for hot dip galvanizing of steel and iron members, it consists of 0.012% (wt) Al; 0.02% (wt) Bi; All the other are zinc and unavoidable impurities.
Ingot shape is with embodiment 2.
Adopt above-mentioned alloy pig to the steel hot dip galvanizing of steel and iron members, ZINC ALLOY is fused into zinc bathes, it is stable, even that gained zinc is bathed alloying element content, good fluidity.
The present invention comprises but is not limited to above-mentioned embodiment, as long as adopted the form that becomes zinc to bathe Zn-Al-Bi alloy direct fusion, promptly belongs to protection scope of the present invention.
Claims (2)
1. the method for a hot dip galvanizing of steel and iron members; It is characterized in that: at first make hot-dip aluminum zinc bismuth alloy ingot; Then hot-dip aluminum zinc bismuth alloy ingot should be connect and be fused into the zinc bath; The composition of described hot-dip aluminum zinc bismuth alloy ingot and weight percent are 0.008%～0.012% (wt) Al, 0.02%～0.08% (wt) Bi, and all the other are zinc and unavoidable impurities.
2. the method for hot dip galvanizing of steel and iron members according to claim 1, it is characterized in that: described galvanizing alloy pig ingot heavily is 900～1100kg, and ingot shape length is 1160～1200mm, and width is 580～600mm, highly is 260～300mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100353145A CN101086046B (en) | 2007-07-09 | 2007-07-09 | Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method |
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| CN2007100353145A CN101086046B (en) | 2007-07-09 | 2007-07-09 | Hot dip galvanizing Al Bi alloy for steel and iron member hot dip galvanizing and its ingot type and method |
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| CN101086046A CN101086046A (en) | 2007-12-12 |
| CN101086046B true CN101086046B (en) | 2012-05-30 |
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| CN108103328A (en) * | 2017-12-15 | 2018-06-01 | 南通昂申金属材料有限公司 | A kind of preparation process of aluminium bismuth intermediate alloy |
| CN109097630A (en) * | 2018-08-22 | 2018-12-28 | 株洲冶炼集团股份有限公司 | A kind of Hot Dip Zinc Alloys for narrowband galvanizing steel |
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Effective date of registration: 20170821 Address after: 412004 water in Zhuzhou city in Hunan Province Tang Shifeng District Patentee after: Zhuzhou smelting group science and Technology Development Co Ltd Address before: 412004 water in Zhuzhou city in Hunan Province Tang Shifeng District Patentee before: Zhuzhou Smelter Group Co., Ltd. |
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