US1816617A - Method of galvanizing - Google Patents
Method of galvanizing Download PDFInfo
- Publication number
- US1816617A US1816617A US222760A US22276027A US1816617A US 1816617 A US1816617 A US 1816617A US 222760 A US222760 A US 222760A US 22276027 A US22276027 A US 22276027A US 1816617 A US1816617 A US 1816617A
- Authority
- US
- United States
- Prior art keywords
- coating
- zinc
- subjecting
- bath
- same
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title description 22
- 238000005246 galvanizing Methods 0.000 title description 9
- 238000000576 coating method Methods 0.000 description 54
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 53
- 229910052725 zinc Inorganic materials 0.000 description 53
- 239000011701 zinc Substances 0.000 description 53
- 239000011248 coating agent Substances 0.000 description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 230000001464 adherent effect Effects 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000005530 etching Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
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
- C23C2/06—Zinc or cadmium 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
-
- 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
- C23C2/026—Deposition of sublayers, e.g. adhesion layers or pre-applied alloying elements or corrosion protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
- Y10S205/917—Treatment of workpiece between coating steps
Definitions
- My invention relates to the coating of metal and more particularly has reference to the galvanizing of wire and ⁇ sheets and similar materials.
- the principal object of this invention is to cause the adherence of. the galvanized coating to the metal base so that the coating will not flake or peel from said metal base, when the same is subjected to bending and forming operations.
- Another object of the invention is to cause the galvanized coating to adhere more tightly to the metal base than is possible under ordinary galvanizing conditions.
- a further obj ect of the invention is to allow heavier coatings to be carried on wire, sheets and similar materials, especially where such materials carry a galvanized coating.
- Still another object of the invention is to prepare an iron or steel base which is to be galvanized, in such a manner, that the galvanized coating will readily adhere thereto in a manner superior to any ordinary and known process.
- FIG. 1 is a diagrammatic view showing a typical layout for the practice of the method when galvanizing wire
- Fig. 2 is a diagrammatic view of a layout for galvanizing sheets.
- What I claim is l.
- the method of applying an adherent zinc coating to a metallic base which consists in'lirst subjecting such metallic base to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and lginelly subjecting the same to a molten zinc 2.
- the method of applying an adherent zinc coating to an iron or steel base which consists in first subjecting such iron or steel base to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and finally subjecting the same to a ⁇ molten Zinc bath.
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)
- Electroplating Methods And Accessories (AREA)
Description
July 28, 1931.
Patented July 28, 1931 PATENT OFFICE JULIAN L. SCHUELEB, F KOKOMO, INDIANA METHOD OF GALVANIZING Application led September 29, 1927. Serial No. 222,760.
My invention relates to the coating of metal and more particularly has reference to the galvanizing of wire and `sheets and similar materials.
I-Ieretofore, in coating metals, it has -been very diflicult to get relatively heavy coatings, especially so in galvanizing, which would adhere to the base metal, if the coated material was subjected to bending or severe forming. j
The principal object of this invention is to cause the adherence of. the galvanized coating to the metal base so that the coating will not flake or peel from said metal base, when the same is subjected to bending and forming operations.
Another object of the invention is to cause the galvanized coating to adhere more tightly to the metal base than is possible under ordinary galvanizing conditions.
A further obj ect of the invention is to allow heavier coatings to be carried on wire, sheets and similar materials, especially where such materials carry a galvanized coating.
Still another object of the invention is to prepare an iron or steel base which is to be galvanized, in such a manner, that the galvanized coating will readily adhere thereto in a manner superior to any ordinary and known process.
Further objects of the invention will more fully appear.
That the invention may be more 4easily understood, Fig. 1 is a diagrammatic view showing a typical layout for the practice of the method when galvanizing wire, and
Fig. 2 is a diagrammatic view of a layout for galvanizing sheets.
At the present time, so far as I am aware, there are no quick and cheap methods for coating wire, sheets and like materials with relatively heavy coatings of zinc where the coating will stand the action of forming and fabricating devices, without cracking or peeling.
It has been found, that bythe use of a very high grade zinc and allowing the material to pass very slowly through a molten zinc bath, fairly heavy coatings may be ob` tained which will stand forming. However,
it has been my experience that the use of such processes is very limited on account of the high cost of production; and such processes cannot be used for wire intended for farm fencing or barbed wire and the like, or for sheets to be used for forming Vinto cheap domesticarticles, on account of the cost and low production per galvanizing unit. On the other hand, if the wire or sheet is passed through the coating bath too quickly and a heavy coat allowed to remain on the same, a non-adherent coating is produced, especially if such materials be formed after coating.
The reason for such coatings cracking and peeling, is caused by the non-aiiinity of molten zinc for iron or steel, unless said. molten zinc is allowed to come in contact with the iron-or steel for a relatively long period 7 of time. It is' for this reason that low speeds through galvanizing baths are conducive to more adherent coatings on iron or steel passed therethrough. However, as -I previously stated, such a process is too costly for ordinary use.
I have discovered that if the iron or steel article (for the sake of brevity and clearness I will conne myself to iron or steel wire, hereinafter called wire) is subjected to a preliminary light coating or Hash coating of zinc, just prior to entering the molten zinc bath, then the molten zinc will adhere more firmly to the wire. The reason is this q molten zinc has more'aiiinity for zinc than it has for 85 iron or steel. Consequently by the use of a process whereby the zinc is firmly attached to, or bonded with, the steel base and then applying the molten zinc to the irmly attached z1nc, a coating is produced which will not 90 crack or peel from the iron orcsteel base. I accomplish such a preliminary coating by subjecting the wire to an electrolytic process just prior to subjecting it to the molten zinc bath. C 9 It is well known to those skilled inthe art that the applicatien of an electrolytic'zinc coating is a slow, tedious and fairly expensive process. Furthermore, such electrolytically applied coatings are porous, but are extremely adherent when properly applied. In the application of electrolytic Zinc, considerable time and low voltages, say 3-5 volts, are used.
Consequently, if this process were to be used, either very low speeds and resulting low production would ensue, or long coating tanks would have to be used, which is not economically practical.
I have discovered that all of these objections, except porosity of the coating, are obviated if I use higher voltages, such for eX- ample, as 90 volts, `and I can obtain an electrolytic coating in a very few seconds. Such a coating is very iirmly attached to and bonded with the metallic. base. By then passin this coated material into the molten Zinc secure an adherent coating, because the molten zinc amalgamates with the electrolytic zinc, which, in turn, is securely bonded with the metallic base, as before described. Furthermore, the porosity of the electrolytic Zinc coating is also an aid, because the molten zinc flows into these pores and helps form a mechanical or physical bond between the molten Zinc and electrolytic zinc.
I can also accentuate this bonding by giving the electrolytic coating a very slight acid etching before it passes into the molten zinc bath. This is also a physical or mechanical help in the bonding.
I am aware that coating by means of molten Zinc is not new, nor is the coating by electrolytically applied Zinc, new. However, so far as I am aware, the combination of the two steps is new, more especially my novel means for applying the electrolytic zinc. It is well known, that heavy, adherent zinc coatings on materials to be formed or fabricated are eX- tremely diicult to produce and my method produces such adherent coatings in a cheap, efficient and economical manner.
What I claim is l. The method of applying an adherent zinc coating to a metallic base, which consists in'lirst subjecting such metallic base to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and lginelly subjecting the same to a molten zinc 2. The method of applying an adherent zinc coating to an iron or steel base, which consists in first subjecting such iron or steel base to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and finally subjecting the same to a `molten Zinc bath.
3. The method of applying an adherent zinc coating to wire, which consists in first subjecting such wire to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and finally subjecting the same to a molten zinc bath.
4. The method of applying an adherent zinc coating to sheets, which consists in first subjecting such sheets to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and finally subjecting the same to a molten zinc bath.
5. The method of applying an adherent Zinc coat-ing to a metallic base, which consists in continuously moving such base and during such movement subjecting the same, lirst to an electrolytic zinc coating bath; second, subjecting the same to an acid etching bath and finally subjecting the same to a molten Zinc bath.
6. The method of applying an adherent Zinc coating to wire, which consists in continuously moving such wire and during such movement subjecting the same, first to an electrolytic zinc coating bath; second, sub-,Y
jecting the same to an acid etching bath and nally subjecting the same to a molten zinc ath.
7. The method of applying an adherent zinc coating to sheets, which consists in continuously moving such sheets and during such movement subjecting the same, first to an electrolytic Zinc coating bath; second, subjecting the same to an acid etching bath and naly subjecting the same to a molten zinc 8. The method of applying an adherent zinc coating to articles, which consists in applying a thin initial coating of electrolytic zinc to said articles, lightly etching the initial coating, and finally subjecting the initially coated and etched article to a molten zinc bath.
9. The method of applying an adherent zinc coating to articles, which consists in applying a thin coating of electrolytiozinc to said articles, subjecting the article to an acid etching bath to roughen the surface of the initial coat and finally subjecting the initially coated and etched article to a ymolten zinc bath.
In witness whereof I have lhereunto set my hand this 26th day of September, 1927.
JULIAN L. SCHUELER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US222760A US1816617A (en) | 1927-09-29 | 1927-09-29 | Method of galvanizing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US222760A US1816617A (en) | 1927-09-29 | 1927-09-29 | Method of galvanizing |
Publications (1)
Publication Number | Publication Date |
---|---|
US1816617A true US1816617A (en) | 1931-07-28 |
Family
ID=22833561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US222760A Expired - Lifetime US1816617A (en) | 1927-09-29 | 1927-09-29 | Method of galvanizing |
Country Status (1)
Country | Link |
---|---|
US (1) | US1816617A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046214A (en) * | 1958-09-08 | 1962-07-24 | Chain Anodizers Inc | Apparatus for continuously electrolytically treating flexible articles |
FR2506337A1 (en) * | 1981-05-22 | 1982-11-26 | Huster Feuerverzinkerei | METHOD OF GALVANIZING METAL PARTS BY TEMPERING |
US4390377A (en) * | 1981-01-12 | 1983-06-28 | Hogg James W | Novel continuous, high speed method of galvanizing and annealing a continuously travelling low carbon ferrous wire |
US9478100B2 (en) | 2013-03-12 | 2016-10-25 | Igt | Localized remote gaming |
-
1927
- 1927-09-29 US US222760A patent/US1816617A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046214A (en) * | 1958-09-08 | 1962-07-24 | Chain Anodizers Inc | Apparatus for continuously electrolytically treating flexible articles |
US4390377A (en) * | 1981-01-12 | 1983-06-28 | Hogg James W | Novel continuous, high speed method of galvanizing and annealing a continuously travelling low carbon ferrous wire |
FR2506337A1 (en) * | 1981-05-22 | 1982-11-26 | Huster Feuerverzinkerei | METHOD OF GALVANIZING METAL PARTS BY TEMPERING |
US9478100B2 (en) | 2013-03-12 | 2016-10-25 | Igt | Localized remote gaming |
US10198902B2 (en) | 2013-03-12 | 2019-02-05 | Igt | Localized remote gaming |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2175105A1 (en) | Process for Improving the Formability and Weldability Properties of Zinc Coated Steel Sheet | |
US1816617A (en) | Method of galvanizing | |
US1984335A (en) | Metal coated ferrous article and process of making it | |
KR950011879A (en) | Steel wire coated with iron-zinc-aluminum alloy and manufacturing method thereof | |
US3762883A (en) | Coated steel article | |
US20140017516A1 (en) | Hot dipped galvanized steel sheet with excellent deep drawing properties and ultra-low temperature adhesive brittleness, and preparation method thereof | |
US3383293A (en) | Processes for drawing and coating metal substrates | |
US1923790A (en) | Chromium plated article and method of making the same | |
US3157539A (en) | Method of producing shaped metallic bodies having a copper alloy base and a noble metal outer coating | |
US2104269A (en) | Metal plating | |
US488499A (en) | William b | |
US2276101A (en) | Art of treating and coating metals | |
US2068904A (en) | Galvanizing process | |
US1664750A (en) | Process for the production of galvanic metal coatings | |
KR100625952B1 (en) | Manufacturing method of galvanized steel sheet with excellent surface appearance and brightness | |
US2038548A (en) | Method of coating metal | |
US2100256A (en) | Method of making composite bodies of zinc and aluminum | |
US2038551A (en) | Method of electroplating zinc on cadmium zinc alloys | |
US1435260A (en) | Method of producing tin-coated sheets | |
JPH0297653A (en) | Alloying hot dip galvanized steel sheet excellent in workability and its production | |
JP2515766B2 (en) | Metal surface processing method | |
US822873A (en) | Process of coating one metal with another and the resulting product. | |
JP2541380B2 (en) | Method for producing iron-zinc alloy-plated steel sheet having a plurality of iron-zinc alloy plating layers having excellent electrodeposition coatability | |
JP2691325B2 (en) | Manufacturing method of carbon steel thin plate for mainspring | |
US2439489A (en) | Preparation of silver foil |