CN113249669A - 一种锌铝镁合金镀层的配方及其在高速护栏上的应用 - Google Patents
一种锌铝镁合金镀层的配方及其在高速护栏上的应用 Download PDFInfo
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- -1 zinc-aluminum-magnesium Chemical compound 0.000 title claims abstract description 56
- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 239000011701 zinc Substances 0.000 claims abstract description 18
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 56
- 239000010959 steel Substances 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000000137 annealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 238000002161 passivation Methods 0.000 claims description 8
- OZECDDHOAMNMQI-UHFFFAOYSA-H cerium(3+);trisulfate Chemical compound [Ce+3].[Ce+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O OZECDDHOAMNMQI-UHFFFAOYSA-H 0.000 claims description 6
- 239000003599 detergent Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000003618 dip coating Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 238000007664 blowing Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 24
- 230000007797 corrosion Effects 0.000 abstract description 24
- 230000001681 protective effect Effects 0.000 abstract description 8
- 150000003839 salts Chemical class 0.000 abstract description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract description 6
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 3
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 3
- 239000011592 zinc chloride Substances 0.000 abstract description 3
- 235000005074 zinc chloride Nutrition 0.000 abstract description 3
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 abstract description 3
- 229940007718 zinc hydroxide Drugs 0.000 abstract description 3
- 229910021511 zinc hydroxide Inorganic materials 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000007747 plating Methods 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008261 resistance mechanism Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- LGERWORIZMAZTA-UHFFFAOYSA-N silicon zinc Chemical compound [Si].[Zn] LGERWORIZMAZTA-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
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- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
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Abstract
本发明提供一种锌铝镁合金镀层的配方及其在高速护栏上的应用,按质量百分比含量计:由Mg为2%‑3%、Al为11.7%‑15%、稀土元素,余量为锌的成分组成。本发明一种锌铝镁合金镀层的配方及其在高速护栏上的应用中,其中形成的镀层密合性好,最后形成合金液镀层对“盐”耐腐蚀性好,具有自修复功能,切割后切割面周边的镀层成分不断溶出,形成主要由氢氧化锌、碱性氯化锌及氢氧化镁等组成的致密保护膜,这种保护膜导电性较低,对切割面的腐蚀有抑制效果。
Description
技术领域
本发明属于有色金属材料技术领域,具体而言,涉及一种锌铝镁合金镀层的配方及其在高速护栏上的应用。
背景技术
热镀产品以其优良的耐蚀性广泛应用于汽车、家电、建筑、机械制造等行业;随着市场对产品耐蚀性能要求的提高,热镀产品的需求量已逐渐超过冷轧裸板,全世界每年因腐蚀而损失的钢铁占当年产量的 10%以上,超过 20%的机械、桥梁因为腐蚀而报废,在工业生产中采用钢材热镀锌可以有效地减少钢材腐蚀。
由于现有产品存在着切面耐腐蚀性能差,镀层容易脱落,整体性能差,对“盐”耐腐蚀性差,镀层密合性差,钢材后期加工工艺多,使用后续成本高,使用电镀增加了使用资源的问题。
因此,设计制造出一种锌铝镁合金镀层的配方及其在高速护栏上的应用,用于生产预镀锌铝镁合金板,显得非常重要。
发明内容
为了解决上述技术问题,本发明提供一种锌铝镁合金镀层的配方及其在高速护栏上的应用,以解决现有产品存在着切面耐腐蚀性能差,镀层容易脱落,整体性能差,对“盐”耐腐蚀性差,镀层密合性差,钢材后期加工工艺多,使用后续成本高,使用电镀增加了使用资源的问题。
一种锌铝镁合金镀层的配方,按质量百分比含量计:由Mg为2%-3%、Al为11.7%-15%、稀土元素,余量为锌的成分组成。
优选的,按重量份数计,所述锌铝镁合金镀层的配方中含有0.5-1.0g/L硫酸铈。
优选的,所述稀土元素为Zr1%-2%或Re0.02%-0.1%,所述锌铝镁合金镀层应用于高速护栏。
优选的,所述应用的具体生产工艺包括以下步骤:
(1)采购合格的钢卷,通过开卷机组对宽卷材料设长度方向剪切成窄的一定尺寸卷材,为其他加工工序做好准备,去掉卷板的毛边,为下一步做准备;
(2)选用对钢卷材料进行抛磨处理、化学液清洗、工业洗涤剂和三道水洗;
(3)按照配方量制备锌铝镁合金液;
(4)对步骤(2)中处理完成的钢材进行处理,放入锌铝镁锅内,和步骤(1)得到的合金液中进行热镀和调整步骤,之后退火步骤和钝化,完成后空置;
(5)将步骤(4)中得到的一部分钢材通过冷弯滚压成型机进行冲孔压瓦成型;
(6)将步骤(4)中得到的另一部分钢带卷焊制成的钢管在焊接设备上进行直缝焊接;
(7)将步骤(4)中得到的最后一部分钢材进行附件成型;
(8)进行合格品检验。
优选的,所述(3)中,按Mg为2%-3%、Al为11.7%-15%,Zr含量为1%-2%,余量为锌的质量百分比称量好Zn块、ZnMg10合金块、Al块、AlZr10合金块,将锌加热至500℃~550℃完全熔化,然后再依次加入铝块到锌液中至熔化,搅拌后再加入用铝箔包裹好的镁块和锆块,至熔化,加入0.5-1.0g/L硫酸铈;再将合金液升温至560℃~600℃,每30min搅拌一次,保温5~10h,形成合金液待用;
优选的,所述步骤(2)中,化学除油液采用氢氧化钠30~50G/L,工业洗涤剂1~2ML/L,水70~125G,温度在50~60℃,所述三道水洗均为常温下清水。
优选的,所述步骤(2)中,溶化的合金液里浸镀时间5~60s,镀液温度为380~550℃,镀后空冷。
优选的,所述步骤(4)中,所述调整步骤为操作过程中通过测张机调整在镀锌铝镁合金液中钢板的张紧度,所述退火步骤为通过无氧退火炉对测张机结束时取出的钢材进行退火,一次退火取出后,使用气刀对其表面吹除灰尘、吹干水渍、降温冷却,下一步进行垂直风冷,采用从下至上的散热方式,使整个气流由下至上贯穿整个钢材,达到散热的目的,之后二次淬水冷却,放入钝化烘干炉,取出后通过拉矫机矫正,测张机调整张紧度。
优选的,所述锌铝镁锅包括炉体、电子管震荡电路、保温层、开关和通道,所述炉体三分之二埋在地下;所述电子管震荡电路设置在炉体的侧边;所述炉体设置有保温层:所述炉体底部中央位置设置有通道;所述开关设置在立柱上。
与现有技术相比,本发明具有如下有益效果:
1. 本发明锌铝镁合金镀层的设置,具有自修复功能,切割后切割面周边的镀层成分不断溶出,形成主要由氢氧化锌、碱性氯化锌及氢氧化镁等组成的致密保护膜,这种保护膜导电性较低,对切割面的腐蚀有抑制效果。
2.本发明锌铝镁合金镀层的设置,环保性,由于超级耐蚀能力达到普通热镀锌板的10-20倍和切割断面的耐腐蚀自我愈合功效,使用热镀锌铝镁钢板合金镀层板制成的构件的服役寿命自然就会很长,一般情况下,可以达到30年以上。
3.本发明的设置,锌铝镁高速护栏生产过程中可控,在密闭环境下实现,无无组织粉尘、废气等排放,镀层密合性好,形成的合金液镀层对“盐”耐腐蚀性好。
附图说明
图1是本发明流程示意图。
图2是本发明锌铝镁合金板在盐水喷雾下发生红锈的结构示意图。
图3是本发明锌铝镁合金板的耐腐蚀机理的结构示意图。
图4是本发明锌铝镁合金板的耐腐蚀机理随时间变化的结构示意图。
图5是本发明锌铝镁锅的结构示意图。
图中:
1-炉体、2-电子管震荡电路、3-保温层、4-开关和5-通道。
具体实施方式
以下结合附图对本发明做进一步描述:
实施例:
如附图1至附图5所示
本发明提供一种锌铝镁合金镀层的配方,按质量百分比含量计:由Mg为2%-3%、Al为11.7%-15%、稀土元素,余量为锌的成分组成。
按重量份数计,所述锌铝镁合金镀层的配方中含有0.5-1.0g/L硫酸铈。
所述稀土元素为Zr1%-2%或Re0.02%-0.1%,所述锌铝镁合金镀层应用于高速护栏。
所述应用的具体生产工艺包括以下步骤:
(1)采购合格的钢卷,通过开卷机组对宽卷材料设长度方向剪切成窄的一定尺寸卷材,为其他加工工序做好准备,去掉卷板的毛边,为下一步做准备;
(2)选用对钢卷材料进行抛磨处理、化学液清洗、工业洗涤剂和三道水洗;
(3)按照配方量制备锌铝镁合金液;
(4)对步骤(2)中处理完成的钢材进行处理,放入锌铝镁锅内,和步骤(1)得到的合金液中进行热镀和调整步骤,之后退火步骤和钝化,完成后空置;
(5)将步骤(4)中得到的一部分钢材通过冷弯滚压成型机进行冲孔压瓦成型;
(6)将步骤(4)中得到的另一部分钢带卷焊制成的钢管在焊接设备上进行直缝焊接;
(7)将步骤(4)中得到的最后一部分钢材进行附件成型;
(8)进行合格品检验。
所述步骤(3)中,按Mg为2%-3%、Al为11.7%-15%,Zr含量为1%-2%,余量为锌的质量百分比称量好Zn块、ZnMg10合金块、Al块、AlZr10合金块,将锌加热至500℃~550℃完全熔化,然后再依次加入铝块到锌液中至熔化,搅拌后再加入用铝箔包裹好的镁块和锆块,至熔化,加入0.5-1.0g/L硫酸铈;再将合金液升温至560℃~600℃,每30min搅拌一次,保温5~10h,形成合金液待用;
所述步骤(2)中,化学除油液采用氢氧化钠30~50G/L,工业洗涤剂1~2ML/L,水70~125G,温度在50~60℃,所述三道水洗均为常温下清水。
所述步骤(2)中,溶化的合金液里浸镀时间5~60s,镀液温度为380~550℃,镀后空冷。
所述步骤(4)中,所述调整步骤为操作过程中通过测张机调整在镀锌铝镁合金液中钢板的张紧度,保证钢板表面镀锌的一致性,且结构简单,维护方便;所述退火步骤为通过无氧退火炉对测张机结束时取出的钢材进行退火,一次退火取出后,使用气刀对其表面吹除灰尘、吹干水渍、降温冷却,下一步进行垂直风冷,采用从下至上的散热方式,使整个气流由下至上贯穿整个钢材,达到散热的目的,之后二次淬水冷却,放入钝化烘干炉,取出后通过拉矫机矫正,测张机调整张紧度。
所述锌铝镁锅包括炉体1、电子管震荡电路2、保温层3、开关4和通道5,所述炉体1三分之二埋在地下;所述电子管震荡电路2设置在炉体1的侧边;所述炉体1设置有保温层3:所述炉体1底部中央位置设置有通道5;所述开关4设置在立柱上。本发明具体实施方式中,锌铝镁锅的加热方式是打开开关4,将材料加入到炉体1内,通过电子管振荡电路产生高频电磁场,然后加到材料之上,对样品进行感应,产生涡电流(涡流),从而产生焦耳热,使样品迅速升温熔化。
感应加热的原理是:将工件放到感应器内,感应器一般是输入中频或高频交流电(1000-300000Hz或更高)的空心铜管,产生交变磁场在工件中产生出同频率的感应电流,这种感应电流在工件的分布是不均匀的,在表面强,而在内部很弱,到心部接近于0,利用这个集肤效应,可使工件表面迅速加热,在几秒钟内表面温度上升到800-1000ºC,而心部温度升高很小。
本发明具体实施方式中,镀锌铝镁合金镀层是多种金属高温固化形成,能在钢板表面形成一层致密的、有效防止腐蚀因子穿透的屏障,具有优异的耐蚀性,是热镀锌板的10-20倍,成分包括铝、锌硅、镁和稀土族金属。
首先,锌铝镁合金镀层的具有耐腐蚀机理,机理图如附图4所示,随时间变化图如附图2所示,其具体功能如下:
1、保护膜产生机理
锌铝镁合金镀层所含镁和铝成份的作用,随着时间的推移,在镀层表面上生成附着性极高的致密保护皮膜,有效防止腐蚀因子的通过,实现耐蚀性的稳定性。
2、切口端面防腐蚀机理
预锌铝镁合金镀层的切口端面四周边部随着时间的推移镀层成分的溶出,形成氢氧化锌[Zn(OH)2]、碱性氯化锌[ZnCl 24Zn(OH) 2]及氢氧化镁[Mg(OH) 2]等组成的致密保护皮膜。这些成分在数月之内就会覆盖切口端面部分。这种保护皮膜导电性低,对端面部分的腐蚀有明显的抑制效果。
其次,锌铝镁合金镀层在盐水喷雾下发生红锈,具有更优秀的抗红锈性能,其实验数据数据如附图3所示。
最后,镀膜密合呈良性,在连续热浸镀Zn-AI钢板的生产中,钢板放入镀槽时的表面性状影响镀膜的密合性,如果在浸镀前钢板表面有油污、生锈等,就会产生镀层密合不良,因此,在浸镀前采用电解清洗等脱脂去除油污及锈迹等,用弱氧化性气氛燃烧去除污染物,然后继续用氢还原(燃烧还原方式)的任意一种方式进行预处理,在燃烧还原方式中,作为二氧化碳和水蒸气燃烧或挥发去除表面污染物后,将燃烧生成的钢板表面的高温氧化铁皮还原,如果此时还原不完全,由于表面污染物和氧化物的残留,影响浸镀金属和钢板的湿润性或反应,可能会引起镀膜密合不良。
利用本发明所述的技术方案,或本领域的技术人员在本发明技术方案的启发下,设计出类似的技术方案,而达到上述技术效果的,均是落入本发明的保护范围。
Claims (9)
1.一种锌铝镁合金镀层的配方,其特征在于,按质量百分比含量计:由Mg为2%-3%、Al为11.7%-15%、稀土元素,余量为锌的成分组成。
2.根据权利要求1所述的锌铝镁合金镀层的配方,其特征在于,按重量份数计,所述锌铝镁合金镀层的配方中含有0.5-1.0g/L硫酸铈。
3.根据权利要求1-2任一项所述的一种锌铝镁合金镀层的配方,其特征在于,所述稀土元素为Zr1%-2%或Re0.02%-0.1%,所述锌铝镁合金镀层应用于高速护栏。
4.根据权利要求3所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述应用的具体生产工艺包括以下步骤:
采购合格的钢卷,通过开卷机组对宽卷材料设长度方向剪切成窄的一定尺寸卷材,为其他加工工序做好准备,去掉卷板的毛边,为下一步做准备;
选用对钢卷材料进行抛磨处理、化学液清洗、工业洗涤剂和三道水洗;
按照配方量制备锌铝镁合金液;
对步骤(2)中处理完成的钢材进行处理,放入锌铝镁锅内,和步骤(1)得到的合金液中进行热镀和调整步骤,之后退火步骤和钝化,完成后空置;
将步骤(4)中得到的一部分钢材通过冷弯滚压成型机进行冲孔压瓦成型;
将步骤(4)中得到的另一部分钢带卷焊制成的钢管在焊接设备上进行直缝焊接;
将步骤(4)中得到的最后一部分钢材进行附件成型;
进行合格品检验。
5.根据权利要求4所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述(3)中,按Mg为2%-3%、Al为11.7%-15%,Zr含量为1%-2%,余量为锌的质量百分比称量好Zn块、ZnMg10合金块、Al块、AlZr10合金块,将锌加热至500℃~550℃完全熔化,然后再依次加入铝块到锌液中至熔化,搅拌后再加入用铝箔包裹好的镁块和锆块,至熔化,加入0.5-1.0g/L硫酸铈;再将合金液升温至560℃~600℃,每30min搅拌一次,保温5~10h,形成合金液待用。
6.根据权利要求4所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述步骤(2)中,化学除油液采用氢氧化钠30~50G/L,工业洗涤剂1~2ML/L,水70~125G,温度在50~60℃,所述三道水洗均为常温下清水。
7.根据权利要求4所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述步骤(2)中,溶化的合金液里浸镀时间5~60s,镀液温度为380~550℃,镀后空冷。
8.根据权利要求4所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述步骤(4)中,所述调整步骤为操作过程中通过测张机调整在镀锌铝镁合金液中钢板的张紧度,所述退火步骤为通过无氧退火炉对测张机结束时取出的钢材进行退火,一次退火取出后,使用气刀对其表面吹除灰尘、吹干水渍、降温冷却,下一步进行垂直风冷,采用从下至上的散热方式,使整个气流由下至上贯穿整个钢材,达到散热的目的,之后二次淬水冷却,放入钝化烘干炉,取出后通过拉矫机矫正,测张机调整张紧度。
9.根据权利要求4所述的一种锌铝镁合金镀层其在高速护栏上的应用,其特征在于,所述步骤(4)中,所述锌铝镁锅包括炉体、电子管震荡电路、保温层、开关和通道,所述炉体三分之二埋在地下;所述电子管震荡电路设置在炉体的侧边;所述炉体设置有保温层:所述炉体底部中央位置设置有通道;所述开关设置在立柱上。
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