CN1044679A - 熔融镀覆金属的预处理 - Google Patents
熔融镀覆金属的预处理 Download PDFInfo
- Publication number
- CN1044679A CN1044679A CN90100425.1A CN90100425A CN1044679A CN 1044679 A CN1044679 A CN 1044679A CN 90100425 A CN90100425 A CN 90100425A CN 1044679 A CN1044679 A CN 1044679A
- Authority
- CN
- China
- Prior art keywords
- metal
- lead chloride
- zinc
- chloride
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 13
- 238000002203 pretreatment Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 title claims description 30
- 239000002184 metal Substances 0.000 title claims description 30
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 19
- 239000011701 zinc Substances 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 11
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 4
- 239000012047 saturated solution Substances 0.000 claims abstract description 4
- 238000007747 plating Methods 0.000 claims description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000011133 lead Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 229910007570 Zn-Al Inorganic materials 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 235000007164 Oryza sativa Nutrition 0.000 abstract 1
- 235000009566 rice Nutrition 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000005554 pickling Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XEPNJJFNSJKTSO-UHFFFAOYSA-N azanium;zinc;chloride Chemical compound [NH4+].[Cl-].[Zn] XEPNJJFNSJKTSO-UHFFFAOYSA-N 0.000 description 3
- 235000005074 zinc chloride Nutrition 0.000 description 3
- 239000011592 zinc chloride Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000002939 deleterious effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009296 electrodeionization Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 239000000274 aluminium melt Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
为了在熔融锌中进行热浸镀，对钢材进行预处理，预处理的方法是在钢材的表面形成氯化铅(至少为12g/m2)，其数量有可能大于用饱和溶液蒸发所得到的氯化铅。如此形成氯化铅的一种方法是使钢材在氯化铅饱和的1∶1HCl中进行阴极电离(24000库化/米2，并且对钢材进行空气干燥。于是，预处理过的钢材在熔融锌中或在熔融废锌池中浸泡2分钟，以便获得较好的耐腐蚀性能。
Description
本发明涉及熔融镀覆的预处理方法，例如，用锌、铝，及其全金或其他金属或合金的热浸镀的金属件的预处理。
为了防护金属免遭腐蚀采用的热浸镀乃是一种主要的工业，例如，铁基合金的镀覆通常是将它们浸入熔融的锌池内，这种方法通常称作镀锌。成功的熔融镀覆要求熔融的镀料金属和待镀覆的金属件表面直接接触和湿润作用。这样，诸如氧化膜的表面污染物有碍于获得良好的熔融镀覆。
为了保证得到良好的湿润性，通常给金属表面以清洗的预处理，这往往包括使用“助熔剂”来除掉金属表面的污染物。最普通的用于镀锌的助熔剂有氯化铁和氯化锌铵。氯化铁助熔剂镀层的产生，常常只用酸洗酸，如盐酸给金属表面酸洗（清洗）即可，并且在将金属工件浸入熔融锌池之前，使工件表面上的氯化铁助熔剂镀层干燥。氯化锌可能是一种活性的助熔组分，它可以通过下面的反应产生：3Zn+2FeCl3→3ZnCl2+2Fe。
氯化锌铵助熔剂可以在酸洗之后以浓缩的水溶液直接施加到工件上，另一种方法方可以利用镀锌池本身面上的熔融助熔剂层。
一种改进的镀锌方法是采用锌-铝合金的热浸镀料。虽然这些合金镀料不能使钢很好地湿润，但是它们具有较好的耐腐蚀性能，因此，可以应用于大顿位带钢的连续操作线上，在高温下使用还原性气氛进行预清洗，业已证实，在镀料中含有若干铝的情况下，分批操作采用助熔预处理是有困难的，其理由有二个：1、铝与助熔剂反应产生氯化铝，该氯化铝在镀覆温度下具有高的蒸气压，因此，发生令人不满意的雾气，镀料熔池中的铝不断地损失掉;2、助熔剂中的水份将与铝反应而形成氧化铝，这种氧化铝粘在钢的表面上，有碍于获得令人满意的湿润作用。
根据本发明，用锌、铝或锌-铝合金对金属熔融镀覆的方法，其特征在于，通过用水溶液在金属表面上活性形成氯化铅对镀覆的金属进行预处理的步骤。“活性”形成可以使单位面积形成的氯化铅数量比从饱和溶液惰性蒸发要多得多。活性沉积的实例有：（ⅰ）把金属浸入氯化铅的饱和溶液内，当金属从溶液离开时，让金属额外地聚集氯化铅的表面浮渣;（ⅱ）将置于有铅离子的盐酸电解溶液中的金属进行阴极电离，从而形成氯化铅;这是通过电解沉淀的铅与从熔池中分离出来的酸反应而成的，同时当液体蒸发时形成氯化铅晶体。
所形成的氯化铅至少为12g/m2，更好至少为24g/m2/或32g/m2。
阴极电离是一种理想的活性沉积法，理想的阴极电离至少要用9000库伦/m2的电流，更为理想的要用至少24000库/m2（9000库伦约相当于12g）。对于形状复杂的制品，阴极电离最好至少用48000库伦/m2。
阴极电离可以放在无电的酸洗工序后面进行，如果氯化铅水溶液中还含有盐酸和/或碱金属氯化物或碱土金属氯化物，则该阴极电离可以在同一个槽中进行。或者也可以在这样的一个槽中，同时进行阴极电离和酸洗。
本发明提供了一种如上所述的供镀覆的预处理的金属。
湿金属的X-射线衍射线试验表明，在金属表面上有铅和氧化铅的存在，其数量随着阴极电离电流的增加而增加。干燥后的沉积物经过扫描电子显微镜和X-射线衍射的试验可以证实，在金属表面上主要有氯化铅晶体存在，并且当用水漂洗试样后，沉积物的有利影响即行消失，这又进一步加以证实。
据认为阴极沉积铅除了形成氯化铅之外，其本身的存在阻碍了铁基质形成氯化铁。氯化铅被认为在镀锌池中与氯化铁起着相似的作用，它同熔融铝和/或熔融锌的反应分别产生氯化铝或氯化锌和元素铅。后面的两种氯化物，可能通过氯化铅的改进，在镀覆的当时是活性的助熔剂。
氯化铅同现在使用的助熔剂氯化锌、氯化锌铵和氯化铁相比，其中一个优点是有较长的助熔金属的贮藏寿命。氯化铅助熔剂置于空气中不容易吸收水份，并且在浸入熔池之前，残留的水份也不很难去除。没有水份就不会发生有害的铝和水的反应，当使用更容易吸水的普通助熔剂时，将产生有害的铝与水的反应。
理想的熔融镀覆包括把附有Xg/m2氯化铅的金属件暴露在熔融锌（金属或合金）池中，暴露的时间为Y分钟，使xy＞12，理想的是xy＞30，更为理想的是xy＞60，而理想的是Y≤5。锌甚至可以是重复使用的废品。
本发明还对上述预处理后的金属进行了熔融镀覆处理。
现在将通过下面的实施例对本发明加以说明。
在1∶1（即用相等体积水稀释的饱和的）盐酸中，将低碳钢试样酸洗30分钟，然后将它转移到由氯化铅饱和的1∶1Hcl的电解液池中。采用不锈钢惰性电极，将酸洗过的钢试样作阴极，并且让200A/m2的电流通过2分钟（在工业性生产时，可以使待镀覆的金属工件倒入浸在电解液中的穿孔的桶中，该桶本身被作为阴极，如果桶体是绝缘材料的，则可以插入一个探头，使工件成为阴极。该桶在一个水平轴上以5-20rpm的速度转动，这样，可以使工件镀覆均匀）。
阴极电离处理的钢试样经空气干燥后，在不需专门贮藏条件的情况下，将其在室内搁置五天。然后进行镀锌处理，即在普通的熔融锌池中浸泡2分钟，得到一种粘附牢固、光滑无孔隙的锌镀层。浸泡1分钟仅仅达到足够的程度，3分钟的浸泡时间效果更佳。就锌-铝熔料而言，如果没有硅的存在，则浸泡时间超过5分钟会产生较粗糙的表面。
在另一个相同的实验中，用熔融的“废”锌代替正规的熔融锌，例如还含有镁、铝、铅、锡和铜的重新熔化的增碳器（以重量百分比计算，一般含4 1/2Al、1Pb、1/2Sn、1/2Cu）。虽然镀锌的工件较所用的普通锌显得暗淡无光，但是该镀层具有很高的防腐蚀性能。
对又一个同样的钢试样进行相同的处理，但除此以外，钢试样在普通锌池中进行镀锌之前，用蒸馏水进行彻底漂洗，并且在氮气中加以干燥。结果发现，锌镀层粗糙、质地不均，且粘附性能差。
本方法可以连续操作，例如，根据本发明可以连续预处理待镀覆的钢丝和带钢，然后进行连续的熔融镀覆处理。
Claims (12)
1、一种熔融镀覆金属的方法，其特征在于：通过用水溶液在金属表面上活性形成氯化铅的方法，给镀覆金属进行预处理。
2、根据权利要求1所述的方法，其特征在于：该镀料至少主要由锌、铝或锌-铝合金所组成。
3、根据权利要求1或2所述的方法，其特征在于：氯化铅溶液是饱和的。
4、根据权利要求3所述的方法，其特征在于：该金属被浸入氯化铅的饱和溶液中，当金属从该溶液离开时，让金属再聚集富有氯化铅的表面浮渣。
5、根据权利要求1、2或3所述和方法，其特征在于：该金属用含铅离子的盐酸电解液进行阴极电离。
6、根据权利要求5所述的方法，其特征在于：该阴极电离至少使用9000库伦/米2的电流。
7、根据上述任何一个权利要求所述的方法，其特征在于：该氯化铅的沉积量至少为12g/m2。
8、根据权利要求1所述的方法，其特征在于：如上文有关实施例所述的内容
9、根据前面任何一个权利要求所述的方法，其特征在于：供熔融镀覆用的预处理过的金属
10、根据权利要求9所述的金属，其特征在于：该金属经过熔融镀覆处理。
11、根据权利要求10所述的金属，其特征在于，该金属附有Xg/m2的氯化铅，并且对其进行熔融镀覆处理，即在熔融锌池中浸泡Y分钟，使xy＞12。
12、根据权利要求11所述的金属，其特征在于，Y≤5。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8901417.9 | 1989-01-23 | ||
| GB898901417A GB8901417D0 (en) | 1989-01-23 | 1989-01-23 | Preparing metal for melt-coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044679A true CN1044679A (zh) | 1990-08-15 |
| CN1024692C CN1024692C (zh) | 1994-05-25 |
Family
ID=10650447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90100425.1A Expired - Fee Related CN1024692C (zh) | 1989-01-23 | 1990-01-23 | 熔融镀覆金属的预处理 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5053112A (zh) |
| EP (1) | EP0380298A1 (zh) |
| JP (1) | JPH02243749A (zh) |
| CN (1) | CN1024692C (zh) |
| AU (1) | AU628273B2 (zh) |
| CA (1) | CA2007636A1 (zh) |
| GB (2) | GB8901417D0 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257750A (zh) * | 2019-07-04 | 2019-09-20 | 国网山东省电力公司滨州供电公司 | 一种热浸镀铝合金镀层及其热浸镀方法 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6080497A (en) * | 1992-03-27 | 2000-06-27 | The Louis Berkman Company | Corrosion-resistant coated copper metal and method for making the same |
| US5597656A (en) * | 1993-04-05 | 1997-01-28 | The Louis Berkman Company | Coated metal strip |
| US6861159B2 (en) | 1992-03-27 | 2005-03-01 | The Louis Berkman Company | Corrosion-resistant coated copper and method for making the same |
| US6794060B2 (en) | 1992-03-27 | 2004-09-21 | The Louis Berkman Company | Corrosion-resistant coated metal and method for making the same |
| US5491036A (en) * | 1992-03-27 | 1996-02-13 | The Louis Berkman Company | Coated strip |
| US6652990B2 (en) * | 1992-03-27 | 2003-11-25 | The Louis Berkman Company | Corrosion-resistant coated metal and method for making the same |
| WO1995004607A1 (en) * | 1993-08-05 | 1995-02-16 | Ferro Technologies, Inc. | Lead-free galvanizing technique |
| US5437738A (en) * | 1994-06-21 | 1995-08-01 | Gerenrot; Yum | Fluxes for lead-free galvanizing |
| JP3379041B2 (ja) | 1997-03-27 | 2003-02-17 | 大洋製鋼株式会社 | メッキ浴中機材及び製造法 |
| US6393921B1 (en) | 1999-05-13 | 2002-05-28 | University Of Kentucky Research Foundation | Magnetoelastic sensing apparatus and method for remote pressure query of an environment |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB579830A (en) * | 1943-11-01 | 1946-08-16 | Du Pont | Improvements in or relating to the application of metal coatings on articles and surfaces of aluminium and its alloys |
| GB584233A (en) * | 1944-12-20 | 1947-01-09 | Du Pont | Improvements in the production of metal coatings on articles and surfaces of magnesium and magnesium alloys |
| GB673016A (en) * | 1949-12-06 | 1952-05-28 | Thor Hansen Westby | An improved method of coating wire, plates or other objects composed of metal, preferably of iron, with aluminium |
| GB715959A (en) * | 1950-12-29 | 1954-09-22 | Thor Hansen Westby | A process of coating metal, especially iron, with aluminium |
| FR1048103A (fr) * | 1950-12-29 | 1953-12-21 | Placage d'articles métalliques par de l'aluminium | |
| GB715969A (en) * | 1951-01-18 | 1954-09-22 | Comb Engineering Super Heater | Improvements in or relating to butt welding metal tubes |
| GB745456A (en) * | 1952-07-09 | 1956-02-29 | Mccord Corp | Improvements in or relating to method of fluxing and flux compositions |
| US3350244A (en) * | 1965-04-19 | 1967-10-31 | Dunbar L Shanklin | Flux life extender |
| BE809921A (fr) * | 1973-01-20 | 1974-07-18 | Agent de fluxage pour la galvanisation a chaud | |
| GB1407146A (en) * | 1973-07-12 | 1975-09-24 | Foseco Int | Hot dip galvanising |
| GB1489188A (en) * | 1974-10-07 | 1977-10-19 | Goldschmidt Ag Th | Process for the hot tinning hot galvanising and hot leading of iron articles |
| CA1047600A (en) * | 1976-02-02 | 1979-01-30 | Majesty (Her) The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Flexible lead chloride cathode construction |
| US4140821A (en) * | 1976-03-05 | 1979-02-20 | International Lead Zinc Research Organization, Inc. | Process for preheating and preparing ferrous metal for galvanizing |
| US4082868A (en) * | 1976-03-18 | 1978-04-04 | Armco Steel Corporation | Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal |
| US4189939A (en) * | 1977-12-12 | 1980-02-26 | General Electric Company | Compact multimission aircraft propulsion simulator |
| SU929374A1 (ru) * | 1980-12-30 | 1982-05-23 | Институт общей и неорганической химии АН УССР | Флюс дл защиты припо от окислени |
| DE3201475A1 (de) * | 1981-05-22 | 1982-12-09 | Hermann Huster GmbH & Co, 5800 Hagen | Verfahren zum feuerverzinken metallischer werkstuecke |
| LU85886A1 (fr) * | 1985-05-07 | 1986-12-05 | Centre Rech Metallurgique | Procede de depot en continu d'un revetement de zinc-aluminium sur un produit ferreux,par immersion dans un bain de metal fondu |
-
1989
- 1989-01-23 GB GB898901417A patent/GB8901417D0/en active Pending
-
1990
- 1990-01-04 US US07/459,539 patent/US5053112A/en not_active Expired - Fee Related
- 1990-01-12 CA CA002007636A patent/CA2007636A1/en not_active Abandoned
- 1990-01-23 GB GB9001473A patent/GB2229452B/en not_active Expired - Fee Related
- 1990-01-23 JP JP2013476A patent/JPH02243749A/ja active Pending
- 1990-01-23 CN CN90100425.1A patent/CN1024692C/zh not_active Expired - Fee Related
- 1990-01-23 AU AU48638/90A patent/AU628273B2/en not_active Ceased
- 1990-01-23 EP EP90300694A patent/EP0380298A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257750A (zh) * | 2019-07-04 | 2019-09-20 | 国网山东省电力公司滨州供电公司 | 一种热浸镀铝合金镀层及其热浸镀方法 |
| CN110257750B (zh) * | 2019-07-04 | 2021-07-13 | 国网山东省电力公司滨州供电公司 | 一种热浸镀铝合金镀层及其热浸镀方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2007636A1 (en) | 1990-07-23 |
| AU4863890A (en) | 1990-07-26 |
| GB2229452A (en) | 1990-09-26 |
| JPH02243749A (ja) | 1990-09-27 |
| GB9001473D0 (en) | 1990-03-21 |
| CN1024692C (zh) | 1994-05-25 |
| US5053112A (en) | 1991-10-01 |
| GB2229452B (en) | 1993-04-07 |
| EP0380298A1 (en) | 1990-08-01 |
| AU628273B2 (en) | 1992-09-10 |
| GB8901417D0 (en) | 1989-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2099857A (en) | A method of hot dip galvanizing metallic articles | |
| CN1024692C (zh) | 熔融镀覆金属的预处理 | |
| US3167403A (en) | Base materials coated with an alloy of aluminum and manganese | |
| US7160581B2 (en) | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising | |
| CN107740022B (zh) | 一种热浸镀锌铝镁合金助镀剂 | |
| US4264419A (en) | Electrochemical detinning of copper base alloys | |
| US4170525A (en) | Process for plating a composite structure | |
| WO1989000616A1 (en) | Process for electroplating metal plate with aluminum | |
| US547381A (en) | Robert mcknight | |
| CN1186473C (zh) | 一种熔剂法热浸镀低铝锌合金用助镀剂及其使用方法 | |
| CN1017162B (zh) | 电解活化助镀剂法热镀铝锌合金工艺 | |
| US3880730A (en) | Electro-galvanic gold plating process | |
| JPS6112987B2 (zh) | ||
| US7311787B2 (en) | Method for the darkening of a surface layer of a piece of material containing zinc | |
| US1133628A (en) | Galvanizing wire, hoops, sheets, and the like. | |
| JPH08269662A (ja) | 亜鉛−錫合金めっき鋼板の製造法 | |
| JPH06279968A (ja) | 鉄鋼品のアルミニウム−亜鉛合金めっき方法 | |
| CA1241572A (en) | Galvanizing procedure and galvanized product thereof | |
| JPH0657393A (ja) | フラックス処理方法 | |
| US3891447A (en) | Bath for plating gold on titanium metal | |
| KR820001659B1 (ko) | 혼성금속 구조물의 도금방법 | |
| JPH04176855A (ja) | 鉄鋼線状材の溶融亜鉛―アルミニウム合金めっき用フラックス組成物 | |
| CN110923603A (zh) | 一种高耐热性的热浸镀铝锌钢板及其生产方法 | |
| JPS6358235B2 (zh) | ||
| JP2003082447A (ja) | 溶融亜鉛アルミニウムめっき方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: British Technology Group Limited Applicant before: National Research Development Corp. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NATIONAL RESEARCH DEVELOPMENT CORP. TO: BRITISH TECHNOLOGY GROUP CO., LTD |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |