CN103602939B - A kind of hot dip zinc alloy and hot galvanizing method - Google Patents
A kind of hot dip zinc alloy and hot galvanizing method Download PDFInfo
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- CN103602939B CN103602939B CN201310611394.XA CN201310611394A CN103602939B CN 103602939 B CN103602939 B CN 103602939B CN 201310611394 A CN201310611394 A CN 201310611394A CN 103602939 B CN103602939 B CN 103602939B
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Abstract
The invention provides a kind of hot dip zinc alloy, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005-0.01wt% of Ti, 0.0005-0.002wt% of Mn, 0.0005-0.001wt% of Ni, the 0.001-0.1wt% of Al, 0.002-0.1wt% containing 0.001-0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.Hot dip zinc alloy provided by the invention, be applicable to the hot dip galvanizing process of the steel material of various complicated ingredient, the alloy layer thickness formed after hot dip is even, no color differnece, without San Andreas Rift, without unnecessary list edge, there is higher quality of coating, reduce the generation of end slag simultaneously.
Description
Technical field
The invention belongs to Hot Galvanizing Technology field, be specifically related to a kind of hot dip zinc alloy and hot galvanizing method.
Background technology
Along with the develop rapidly of the industries such as military project, automobile, boats and ships, household electrical appliances, building, the demand of pot galvanize product is increasing year by year, improves constantly the requirement of product quality.The principle of pot galvanize is: cleaned up by steel construction piece, then solvent treatment, and immerse in zinc liquid after drying, the iron on steel construction piece surface and fused zinc are reacted, and forms alloy layer on steel construction piece surface.In order to reduce costs, improve the solidity to corrosion of pot galvanize product, surface property and good mechanical characteristic, reduce end slag generation simultaneously, reduce the effective zinc waste produced because salvaging end slag, hot-dip galvanized alloy technology presents new development trend.
Such as, at present both at home and abroad in pot galvanize industry, by adding the alloy layer of trace alloying element, it has good surface quality, excellent etch resistant properties and the bonding properties of excellence and mechanical property.But along with the improvement of steel manufacturing process improves, the composition of steel is comparatively complicated, this change causes traditional pot galvanize to occur some galvanizing quality problems, as coating super thick phenomenon, in uneven thickness, San Andreas Rift, aberration etc., its generation end slag is more simultaneously, repeatedly salvage end slag in production, waste more effective zinc.On the other hand, the complex structure of plating piece, shape is changeable, as bassoon tower part, its adopts contains the higher steel of silicomanganese, the complexity such as the angle steel that structural rate is single, sheet material, band steel, steel pipe, the flowing of this kind of zinc-plated heat transmission of structure influence and zinc liquid more, affect the attachment of coating, higher requirement is proposed to hot-dip galvanized alloy.Because bassoon tower part is the most important structural part of transmitting line, need to bear very energetically, the more general steel of thickness are thick, diameter reach 1 meter even larger, length is generally more than 10 meters, and shape is divided into circle, square, Guan Ta two ends welding load larrying member (being generally disk, feet etc.).This structural part hot dip process requires high, common single zinc alloy is more difficult reaches requirement, be mainly manifested in zinc bath heat transmission effect in galvanizing process not good, zinc bath poor fluidity, thickness of coating is partially thick, and coating has aberration, and coating adhesion is poor, may there is particle in coating, coating is problem such as quality of coating such as light clean grade not only.In prior art, the conventional zinc alloy for pot galvanize mainly contains Zn-Al alloy, Zn-Ni alloy, and it cannot be applicable to the steel material surface heat depositing process of complicated ingredient.For containing high silicon high-manganese steel hot dip process San Andreas Rift Zn-Al alloy, Zn-Ni alloy DeGrain, hot dip process was more than 3 minutes, thickness of coating is more than 200 μm, there is brittle coating, plating piece local poor adhesive force, produce more end slag simultaneously, thus have the zinc of 3-5% to waste, can not get effective utilization.
Summary of the invention
The invention solves in prior art and there is existing zinc alloy and cannot be applicable to the steel material surface hot dip of complicated ingredient and structure and produce the technical problem that slag of the more end causes zinc to waste.
The invention provides a kind of hot dip zinc alloy, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005-0.01wt% of Ti, 0.0005-0.002wt% of Mn, 0.0005-0.001wt% of Ni, the 0.001-0.1wt% of Al, 0.002-0.1wt% containing 0.001-0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
Present invention also offers a kind of hot galvanizing method, comprise the hot dip zinc alloy provided by the invention base material to be plated being placed in melting, form coating at substrate surface to be plated.
Hot dip zinc alloy provided by the invention, by contriver, the kind of component each in zinc alloy and content are suitably selected, be specially and add appropriate Al in zinc bath, Ni, Mn, Cu, Si, Ti trace element, the hot dip zinc alloy provided by the invention obtained, be applicable to the steel material of various complicated ingredient and complicated shape, the too fast growth of zinc-iron alloy layer all effectively can be controlled in its hot dip process, alloy melting point can also be reduced simultaneously, the Alloy zinc bathroom facilities formed after making hot dip zinc alloy provided by the invention melting has higher mobility, the free layer of coating is thinning, effectively can improve solidity to corrosion and the mechanical property of alloy layer simultaneously, make the thickness of alloy layer evenly, no color differnece, without San Andreas Rift, without unnecessary list edge, there is higher quality of coating, reduce the generation of end slag simultaneously, economize on zinc, reduce zinc-plated cost.
Embodiment
The invention provides a kind of hot dip zinc alloy, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005-0.01wt% of Ti, 0.0005-0.002wt% of Mn, 0.0005-0.001wt% of Ni, the 0.001-0.1wt% of Al, 0.002-0.1wt% containing 0.001-0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
The present inventor is found by great many of experiments, hot dip zinc alloy provided by the invention, by suitably selecting the constituent species in zinc alloy and content, be specially and add appropriate Al in zinc bath, Ni, Mn, Cu, Si, Ti trace element, the hot dip zinc alloy provided by the invention obtained, be applicable to various composition and all very complicated steel material of shape, the too fast growth of zinc-iron alloy layer all effectively can be controlled in its hot dip process, alloy melting point can also be reduced simultaneously, the Alloy zinc bathroom facilities formed after making hot dip zinc alloy provided by the invention melting has higher mobility, the free layer of coating is thinning, effectively can improve solidity to corrosion and the mechanical property of alloy layer simultaneously, the thickness of the alloy layer formed after hot dip evenly, no color differnece, without San Andreas Rift, without unnecessary list edge, there is higher quality of coating.
In hot dip zinc alloy provided by the invention, by the synergistic effect of Al, Ni, Mn, Cu, Si, it can reduce the Ti thus reduction raw materials cost that use price relatively costly on the one hand; This hot dip zinc alloy is for containing high silicon high-manganese steel hot dip process San Andreas Rift positive effect on the other hand, silicomanganese element in steel is effectively inhibit to promote the detrimentally affect of the too fast growth of zinc-iron alloy layer, hot dip process was more than 3 minutes, coating is even, thickness can control at about 160 μm, and ductility of electrodeposited film is good, and plating piece local sticking power is good, efficiently solve the problem of baroque bassoon tower part coating adhesion difference, reduce the generation of end slag simultaneously.
As the common practise of those skilled in the art, also with inevitable impurity in hot dip zinc alloy provided by the invention, this impurity exists with usual content, and the present invention does not have particular requirement.
As the first preferred implementation of the present invention, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005wt% of Ti, 0.002wt% of Mn, 0.0005wt% of Ni, the 0.1wt% of Al, 0.002wt% containing 0.001wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
As the second preferred implementation of the present invention, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005wt% of Mn, 0.0005wt% of Ni, 0.005wt% of Ti, the 0.1wt% of Al, 0.0008wt% containing 0.005wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
As the third preferred implementation of the present invention, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.003wt% of Mn, 0.001wt% of Ni, 0.02wt% of Ti, the 0.08wt% of Al, 0.0009wt% containing 0.01wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
As the 4th kind of preferred implementation of the present invention, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.008wt% of Mn, 0.0015wt% of Ni, 0.05wt% of Ti, the 0.02wt% of Al, 0.0007wt% containing 0.1wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
As the 5th kind of preferred implementation of the present invention, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.01wt% of Mn, 0.002wt% of Ni, 0.1wt% of Ti, the 0.002wt% of Al, 0.001wt% containing 0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
Present invention also offers a kind of hot galvanizing method, comprise the hot dip zinc alloy provided by the invention base material to be plated being placed in melting, form coating at substrate surface to be plated.
As previously mentioned, in hot galvanizing method provided by the invention, by suitably selecting the component of hot dip zinc alloy, it is made to be applicable to the pot galvanize process on various complicated ingredient and complicated shape steel material surface, therefore hot galvanizing method provided by the invention is applicable to the base material to be plated of different shape complexity, such as, in bassoon tower part and other various transmitting line common structural part, but be not limited to this.That the to be plated substrate surface pot galvanize of hot galvanizing method provided by the invention to ordinary construction or simple structure is applicable equally, and such as it can realize the pot galvanize process on common angle steel or common channel-section steel surface, repeats no more in the present invention with it may be noted that.
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only the preferred embodiment of the present invention, be not intended to limit the present invention.
Embodiment 1
A kind of hot dip zinc alloy S1, its composition is Al:0.001wt%; Ni:0.002wt%; Mn:0.1wt%; Ti:0.0005wt%; Cu:0.002wt%; Si:0.0005wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the hot dip zinc alloy S1 of the present embodiment to the high silicon high-manganese steel bassoon tower part hot dip process 3 minutes of band right angle base, the thickness of coating formed is even, and thickness of coating is distributed as 150 ~ 170 μm, and sticking power test is good, coating light is bright and clean, and substantially bottomless slag produces.
Embodiment 2
A kind of hot dip zinc alloy S2, its composition is Al:0.005wt%; Ni:0.1wt%; Mn:0.005wt%; Ti:0.0008wt%; Cu:0.0005wt%; Si:0.0005wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the high silicon high-manganese steel bassoon tower part hot dip process 3 minute of hot dip zinc alloy S2 to band four stifflegs of the present embodiment, the thickness of coating formed is even, and thickness of coating is distributed as 130 ~ 160 μm, and sticking power test is good, coating light is bright and clean, produces slag of few end.
Embodiment 3
A kind of hot dip zinc alloy S3, its composition is Al:0.01wt%; Ni:0.08wt%; Mn:0.02wt%; Ti:0.0009wt%; Cu:0.001wt%; Si:0.003wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the high silicon high-manganese steel bassoon tower part hot dip process 3 minute of hot dip zinc alloy S3 to two end band disks of the present embodiment, the thickness of coating formed is even, and thickness of coating is distributed as 110 ~ 140 μm, and sticking power test is good, coating light is bright and clean, produces slag of few end.
Embodiment 4
A kind of hot dip zinc alloy S4, its composition is Al:0.1wt%; Ni:0.02wt%; Mn:0.05wt%; Ti:0.0007wt%; Cu:0.0015wt%; Si:0.008wt%; Surplus for Zn and zinc alloy with inevitable impurity.
The hot dip zinc alloy S4 of the present embodiment is adopted to reinforce the high silicon high-manganese steel bassoon tower part hot dip process 3 minutes of steel disc to two ends and middle part welding, the thickness of coating formed is even, and thickness of coating is distributed as 100 ~ 130 μm, and sticking power test is good, coating light is bright and clean, produces slag of few end.
Embodiment 5
A kind of hot dip zinc alloy S5, its composition is Al:0.2wt%; Ni:0.002wt%; Mn:0.1wt%; Ti:0.001wt%; Cu:0.002wt%; Si:0.01wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the hot dip zinc alloy S5 square shaped height silicon high-manganese steel bassoon tower part hot dip process 3 minutes of the present embodiment, the thickness of coating of formation is even, and thickness of coating is distributed as 90 ~ 120 μm, and sticking power test is good, and coating light is bright and clean, produces slag of few end.
Embodiment 6
A kind of hot dip zinc alloy S5, its composition is Al:0.2wt%; Ni:0.002wt%; Mn:0.1wt%; Ti:0.001wt%; Cu:0.002wt%; Si:0.01wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the hot dip zinc alloy S5 of the present embodiment to common angle steel hot dip process 3 minutes, the thickness of coating of formation is even, and thickness of coating is distributed as 60 ~ 75 μm, and sticking power test is good, and coating light is bright and clean, produces slag of few end.
Embodiment 7
A kind of hot dip zinc alloy S4, its composition is Al:0.1wt%; Ni:0.02wt%; Mn:0.05wt%; Ti:0.0007wt%; Cu:0.0015wt%; Si:0.008wt%; Surplus for Zn and zinc alloy with inevitable impurity.
Adopt the hot dip zinc alloy S4 of the present embodiment to common channel-section steel hot dip process 3 minutes, the thickness of coating of formation is even, and thickness of coating is distributed as 58 ~ 75 μm, and sticking power test is good, and coating light is bright and clean, produces slag of few end.
Above embodiment is only the preferred embodiment of the present invention, it should be pointed out that to those skilled in the art, and under the premise without departing from the principles of the invention, done some improvement, also should be considered as protection scope of the present invention.
Claims (7)
1. a hot dip zinc alloy, it is characterized in that, described hot dip zinc alloy is applied to the hot-dip galvanized alloy that base material to be plated is bassoon tower part, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005-0.01wt% of Ti, 0.0005-0.002wt% of Mn, 0.0005-0.001wt% of Ni, the 0.001-0.1wt% of Al, 0.002-0.1wt% containing 0.001-0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
2. hot dip zinc alloy according to claim 1, it is characterized in that, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005wt% of Ti, 0.002wt% of Mn, 0.0005wt% of Ni, the 0.1wt% of Al, 0.002wt% containing 0.001wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
3. hot dip zinc alloy according to claim 1, it is characterized in that, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.0005wt% of Mn, 0.0005wt% of Ni, 0.005wt% of Ti, the 0.1wt% of Al, 0.0008wt% containing 0.005wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
4. hot dip zinc alloy according to claim 1, it is characterized in that, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.003wt% of Mn, 0.001wt% of Ni, 0.02wt% of Ti, the 0.08wt% of Al, 0.0009wt% containing 0.01wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
5. hot dip zinc alloy according to claim 1, it is characterized in that, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.008wt% of Mn, 0.0015wt% of Ni, 0.05wt% of Ti, the 0.02wt% of Al, 0.0007wt% containing 0.1wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
6. hot dip zinc alloy according to claim 1, it is characterized in that, with the total mass of hot dip zinc alloy for benchmark, the Si of Cu, 0.01wt% of Mn, 0.002wt% of Ni, 0.1wt% of Ti, the 0.002wt% of Al, 0.001wt% containing 0.2wt% in described hot dip zinc alloy, surplus for Zn and zinc alloy with inevitable impurity.
7. a hot galvanizing method, is characterized in that, comprises the hot dip zinc alloy described in any one of claim 1-6 base material to be plated being placed in melting, forms coating at substrate surface to be plated.
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| CN106555096A (en) * | 2016-11-29 | 2017-04-05 | 常熟市张桥华丰铸造五金厂 | A kind of electrical part high-performance foundry goods |
| CN107937854A (en) * | 2017-10-14 | 2018-04-20 | 浙江金盛钢管塔有限公司 | A kind of galvanizing by dipping processing technology |
| CN107868883A (en) * | 2017-10-25 | 2018-04-03 | 株洲冶炼集团股份有限公司 | A kind of hot dip kirsite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639375A (en) * | 2001-06-06 | 2005-07-13 | 新日本制铁株式会社 | High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a metho |
| CN102421928A (en) * | 2009-04-23 | 2012-04-18 | 蒂森克虏伯钢铁欧洲股份公司 | Method For Hot-Dip Coating A Flat Steel Product Containing 2-35 Wt% Mn And Flat Steel Product |
| CN102839298A (en) * | 2012-09-18 | 2012-12-26 | 株洲冶炼集团股份有限公司 | Zinc alloy for hot dipping |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639375A (en) * | 2001-06-06 | 2005-07-13 | 新日本制铁株式会社 | High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a metho |
| CN102421928A (en) * | 2009-04-23 | 2012-04-18 | 蒂森克虏伯钢铁欧洲股份公司 | Method For Hot-Dip Coating A Flat Steel Product Containing 2-35 Wt% Mn And Flat Steel Product |
| CN102839298A (en) * | 2012-09-18 | 2012-12-26 | 株洲冶炼集团股份有限公司 | Zinc alloy for hot dipping |
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Effective date of registration: 20170822 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: 412007 Hunan Province, Zhuzhou city Tianyuan District Lujiang Road No. 10 Patentee before: Zhuzhou Smelter Group Co., Ltd. |