DE877234C - Process for hot-dip tinning or galvanizing of iron sheets or strips - Google Patents
Process for hot-dip tinning or galvanizing of iron sheets or stripsInfo
- Publication number
- DE877234C DE877234C DEE249D DEE0000249D DE877234C DE 877234 C DE877234 C DE 877234C DE E249 D DEE249 D DE E249D DE E0000249 D DEE0000249 D DE E0000249D DE 877234 C DE877234 C DE 877234C
- Authority
- DE
- Germany
- Prior art keywords
- strips
- hot
- oven
- tinning
- iron sheets
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 22
- 229910052742 iron Inorganic materials 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 9
- 238000005246 galvanizing Methods 0.000 title claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000643 oven drying Methods 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 244000277375 Raphia vinifera Species 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- 210000002374 sebum Anatomy 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- 239000004922 lacquer Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 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
- C23C2/04—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
- C23C2/08—Tin or alloys based thereon
-
- 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)
- Paints Or Removers (AREA)
Description
Wenn *es, -sich darum handelt, -Eisenbleche oder -bänder nur einseitig in flüssigem Zinn zu verzinnen (Feuerverzinnung), so ging man bisher in der Weise vor, daß man zwei Bleche zusammenschweißte -und sie als Doppelblech durch die Verzinnungsanlage leitete. Dieses Verfahren besitzt folgende Nachteile: Durch das Zusammenschweißen werden solche Bleche, besonders wenn sie etwas stärker sind, so steif, daß sie schwer durch die Verzinnungsanlage hindurchzuführen sind, da das erforderliche Abbiegen nicht mehr möglich ist, Ferner ist eine gewisse Arbeit mit dem Verschweißen und mit dem Trennen der Bleche verbunden, wobei gleichzeitig verhältnismäßig viel Abfall entsteht.If * it --SiCH a question of -Eisenbleche or bands, we went so far in front in such a way that two sheets together welded -and she managed only one side in liquid tin to tin (dip tinning) and double sheet by tinning. This method has the following disadvantages: By welding such sheets, especially if they are a little stronger, so stiff that they are difficult to pass through the tinning plant, since the necessary bending is no longer possible associated with the separation of the sheets, which at the same time creates a relatively large amount of waste.
Bei diesem Verfahren ist es ferner nicht zu vermeiden, daß bei der starken Wasserstoffentwicklung im Säurebad sich zwischen den beiden Blechen Wasser-°stoff ansammelt, der sodann bei der starken Erhitzung in dem Verzinnungsbad explosionsartig entweicht und ein gefährliches Herumspritzen von flüssigem Zinn zur Folge hat.In this process, it is also unavoidable that in the strong hydrogen development in the acid bath between the two sheets of hydrogen accumulates, which then explodes with the strong heating in the tinning bath escapes and causes dangerous splashing of liquid tin.
Diese Nachteile werden erfindungsgemäß .dadurch vermieden, daß ein beim Feuerverzinnen- bzw. -verzinken nicht angreifbarer ofentrocknender Lack auf die eine Seite des Eisenbleches oder -bandes aufgetragen, im Ofen bei etwa i80 bis 25o° C getrocknet, die Eisenbleche oder -bänder in einem Beizbad, z. B. Salz- oder Schwefelsäurebad, gebeizt, durch ein Flußmittel, z. B. Zinkchlorid, geführt und endlich durch ein flüssiges Zinn- oder Zinkbad mit nachfolgendem Oxydationsschutz, z. B. Palmfett, Talg usw., geleitet werden.According to the invention, these disadvantages are avoided by the fact that a In the case of hot-dip tinning or galvanizing, oven-drying paint that cannot be attacked one side of the iron sheet or band applied, in the oven at about i80 to Dried 25o ° C, the iron sheets or strips in a pickling bath, z. B. salt or Sulfuric acid bath, pickled by a flux, e.g. B. zinc chloride, led and finally through a liquid tin or zinc bath with subsequent oxidation protection, z. B. palm oil, sebum, etc., are passed.
Die Erfindung ist in der Zeichnung beispielsweise veranschaulicht, und es stellt dar Fig. i eine schaubildliche Ansicht. eines Teiles eines Bleches, welches nach der Erfindung behandelt ist, Fig. 2 Ansicht eines endlosen Bandes, welches nach der Erfindung behandelt ist, Fig. 3 einen Schnitt nach der Linie II-II der Fig: 2. In der Zeichnung bedeutet a ein Eisenblech, b einen Lacküberzug, mit dem das Blech vor dem Verzinnvorgang versehen- wird; c ist die Zinnauflage.The invention is illustrated in the drawing, for example, and FIG. 1 is a perspective view. of a part of a sheet which has been treated according to the invention, FIG. 2 is a view of an endless belt which has been treated according to the invention, FIG. 3 is a section along the line II-II of FIG. 2. In the drawing, a denotes an iron sheet , b a lacquer coating with which the sheet metal is provided before the tinning process; c is the tin plating.
Als Lack für- den vorliegenden Zweck ist ein ofentrocknender Lck, z. B. ein hoch hitzebeständiger Aluminiumlack, vorteilhaft. An Stelle eines Aluminiumlackes ist auch ein anderer hoch hitzebeständiger Lack möglich, bei welchem anstatt der Aluminiumteilchen Pigmente organischer oder anorganischer Natur enthalten sind. Als Bindemittel für das Aluminium bzw. für die Pigmente werden organische Produkte z. B. auf Kunstharzbasis (Phenolformaldehyd) verwendet. Vorteilhaft ist dem Lack ein Zusatz von synthetischem Wachs, dessen Schmelzpunkt über ioo° C liegt, beigegeben.The lacquer for this purpose is an oven-drying gap, z. B. a highly heat-resistant aluminum paint, advantageous. Instead of an aluminum lacquer Another highly heat-resistant lacquer is also possible, with which instead of the Aluminum particles contain pigments of organic or inorganic nature. Organic products are used as binders for the aluminum or for the pigments z. B. based on synthetic resin (phenol formaldehyde). The paint is advantageous an addition of synthetic wax, the melting point of which is above 100 ° C, added.
Die Erfahrung hat gezeigt, daß trotz der Erhitzung des Lackes auf über 20o° C beim Durchgang durch das flüssige Zinn der Lack nicht beschädigt wird, sondern nach erfolgter Verzinnung der einen Seite des Bleches die andere Seite einerseits vollkommen zinnfrei und andererseits diese Seite doch vollständig gegen Korrosion geschützt ist. Das Verfahren weist gegenüber dem bisher 'bekannten Verfahren den großen Vorteil auf, daß eine einseitige Feuerverzinnung möglich ist, die der galvanischen Verzinnung wegen der besonderen Dichte des Zinnbelages vorzuziehen ist. Ferner ist keinerlei zusätzliche Arbeit aufzuwenden, und es entsteht kein Abfall.Experience has shown that despite the heating of the paint on above 20o ° C when passing through the liquid tin, the paint is not damaged, but after tinning one side of the sheet, the other side on the one hand completely tin-free and on the other hand this side completely against corrosion is protected. The method has compared to the previously 'known method great advantage that one-sided hot-dip tinning is possible, that of galvanic Tin plating is preferable because of the special density of the tin coating. Furthermore is no extra work to be done and no waste is generated.
Das Verfahren nach der Erfindung kann auch vorteilhaft verwendet werden, wenn es sich darum handelt, Eisenbleche oder -bänder nur streifenweise zu verzinnen, wie dies z. B. bei Blechen oder Bändern zweckmäßig ist, welche später an ihren Kanten miteinander verlötet werden sollen.The method according to the invention can also be used advantageously when it comes to tinning iron sheets or strips only in strips, how this z. B. is useful for sheets or strips, which later on their edges to be soldered together.
In Fig. 2 ist ein Teil eines endlosen Bandes d veranschaulicht, bei welchem die beiden Seiten des Bandes mit "einer Schicht e eines hoch hitzebeständigen ofentrocknenden Lackes überzogen sind, mit Ausnahme der Randstreifen f und g, die während des Überziehens mit dem Lack irgendwie abgedeckt werden. Diese Abdeckung wird sodann entfernt und nunmehr das Band im Ofen bei i80 bis 25o' C getrocknet, durch ein Beizbad geschickt, durch ein Flußmittel geführt und endlich durch ein flüssiges Zinn- oder Zinkbad mit nachfolgendem Oxydationsschutz geleitet, so daß die Randstreifen f und g mit einer entsprechenden Zinn- oder Zinkschicht z bedeckt werden.In Fig. 2 a part of an endless belt d is illustrated, in which the two sides of the belt are coated with "a layer e of a highly heat-resistant oven-drying lacquer, with the exception of the edge strips f and g, which are somehow covered during the coating with the lacquer This cover is then removed and the tape is then dried in the oven at 180 to 25 ° C, passed through a pickling bath, passed through a flux and finally passed through a liquid tin or zinc bath with subsequent oxidation protection, so that the edge strips f and g be covered with a corresponding tin or zinc layer z.
Eine praktische Zusammensetzung eines solchen Lackes für den vorliegenden
Zweck ist z. B. wie folgt:
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE249D DE877234C (en) | 1939-10-29 | 1939-10-29 | Process for hot-dip tinning or galvanizing of iron sheets or strips |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE249D DE877234C (en) | 1939-10-29 | 1939-10-29 | Process for hot-dip tinning or galvanizing of iron sheets or strips |
Publications (1)
Publication Number | Publication Date |
---|---|
DE877234C true DE877234C (en) | 1953-05-21 |
Family
ID=7064684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE249D Expired DE877234C (en) | 1939-10-29 | 1939-10-29 | Process for hot-dip tinning or galvanizing of iron sheets or strips |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE877234C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1084101B (en) * | 1957-08-03 | 1960-06-23 | Hoechst Ag | Process for the production of coatings containing tin |
DE1159726B (en) * | 1958-05-14 | 1963-12-19 | Gen Motors Corp | Process for hot-dip galvanizing of iron objects |
DE1246351B (en) * | 1960-11-08 | 1967-08-03 | Wheeling Steel Corp | Method for one-sided or partial hot-dip galvanizing of objects made of ferrous metals, especially strips |
FR2361472A1 (en) * | 1976-08-12 | 1978-03-10 | Heurtey Metallurgie | PROCESS FOR THE GALVANIZATION OF METAL STRIPS ON ONE SIDE |
DE2938819C1 (en) * | 1978-02-03 | 1983-11-03 | Hitachi, Ltd., Tokyo | Hot-dip metallization process and device for carrying out the process |
-
1939
- 1939-10-29 DE DEE249D patent/DE877234C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1084101B (en) * | 1957-08-03 | 1960-06-23 | Hoechst Ag | Process for the production of coatings containing tin |
DE1159726B (en) * | 1958-05-14 | 1963-12-19 | Gen Motors Corp | Process for hot-dip galvanizing of iron objects |
DE1246351B (en) * | 1960-11-08 | 1967-08-03 | Wheeling Steel Corp | Method for one-sided or partial hot-dip galvanizing of objects made of ferrous metals, especially strips |
FR2361472A1 (en) * | 1976-08-12 | 1978-03-10 | Heurtey Metallurgie | PROCESS FOR THE GALVANIZATION OF METAL STRIPS ON ONE SIDE |
DE2938819C1 (en) * | 1978-02-03 | 1983-11-03 | Hitachi, Ltd., Tokyo | Hot-dip metallization process and device for carrying out the process |
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