US1477703A - Process of coating and treating materials - Google Patents
Process of coating and treating materials Download PDFInfo
- Publication number
- US1477703A US1477703A US546705A US54670522A US1477703A US 1477703 A US1477703 A US 1477703A US 546705 A US546705 A US 546705A US 54670522 A US54670522 A US 54670522A US 1477703 A US1477703 A US 1477703A
- Authority
- US
- United States
- Prior art keywords
- coating
- heat
- materials
- coated
- temperatures
- 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
- 239000000463 material Substances 0.000 title description 23
- 238000000576 coating method Methods 0.000 title description 21
- 239000011248 coating agent Substances 0.000 title description 18
- 238000000034 method Methods 0.000 title description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 238000000137 annealing Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 241000364057 Peoria Species 0.000 description 2
- 229910000635 Spelter Inorganic materials 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 241000180579 Arca Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011253 protective coating 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal 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)
Description
J. L. HERMAN PROCESS OF COATING AND TREATING MATERIALS Dec. 18, 1923.
Filed March 25 Xbil Syvum/Hoz .Patented Bec. I8, I9?
innata am arca.
JOSEPH L. HERMAN, OF PEORIA, ILLINOIS.
PROCESS F COATING AND TREATING MATERIALS.
Application led March 25, 1922.
To all whom 'it may concem:
Be it known that I, JOSEPH L. HERMAN, a citizen of the United States, a resident of Peoria, in the county of Peoria and State a of Illinois, have invented new and useful Improvements in Processes of Coating and Treating Materials, of which the following is a specification.
This invention has reference toa process 10 of coating and treating materials having an iron base, such as wire, nails, pipe, sheets and likematerials, and, while not restricted to l such use, more particularly relates to a process of treating such materials after having been galvanized or coated with zinc.
' The invention has for its principal object to heat-treat such coated materials in order to permit a heavier and more flexible coating to be obtained than can be obtained from 2o the use of ordinary coating methods.
The invention has for a further object the heat-treament of the coating at temperatures above 788 degrees F. said temperature being the approximate melting point of zinc (spelter). Such heat-treatment .may be employed for coatings where the annealing of the coated material is done simultaneously with the heat-treating in air or in an air-free atmosphere; or where the annealing of the material is done simultaneously with the coating; the temperature of the coating bath being sullicient to anneal the material at the same time; or where the material is immersed in the coating bath while in a highly heated state substantially as set forth in my companion applications bearing Serial Numbers 535,660; 541,561; 541,562 and 541,- 563.
In the accompanying drawing there is illustrated diagramatically the usual or ordinary continuous galvanizing or coating apparatus including the annealing furnace, acid bath, flux bath. coating or galvanizing bath, and my heat-treater 7 associated therewith, by means of which my process may be carried out. The temperature of the heat-treater being carried at or above 788 F., the latter being approximately the melting point of zinc.
I have discovered that any material having an iron base and coated with zinc (spelter) may be treated by my process in such Serial No. 546,705.
a. manner as to permit a heavy coating of zinc to remain upon said material and at the same time making this heavy coating flexible, if said material after being coated is subjected to temperatures at or above 788 4degrees F., and maintaining the heated materials at or above such temperature for a definite length of time. This time interval varies, depending upon the temperature to which the materials are heated and the nature of the material undergoing treatment, the heat-treating period being shorter for higher temperatures and vice versa. Material coated by this means has a heavy, durable protective coating against atmospheric rusting and corroding conditions and at the same time is flexible enough to allow the material to be subjected to fabricating or forming machines Without such coating cracking or flaking off, as is the case with materials having a heavy coating and coated by ordinary processes.l For example I have subjected galvanized wire the diameter of which was 0.198 to a heat-treatment such as I have described, by subjecting the galvanized wire to a temperature of about 1500 degrees F. for
'a period of about twenty seconds and obtained a smooth heavy, liexible coated wire, which when not subjected to my heat-treatment is brittle and uneven. I have obtained similar results at about 1300 degrees F. and have reached temperatures in my heattreater as high as 2200 de ees F. in which latter case the length of time the wire was exposed to the heat-treatment was only a few seconds. I, do not, of course, limit myself to the temperatures and time intervals above specified asthey are only given as examples of what I have done as I have produced many tons of such heat-treated materials.
I am aware that there are processes described where coatings have been subjected to heat-treatment at low temperatures for long intervals of time, Whereas by my process I use very short'intervals of time for my heat-treatment and use very high temperatures, namely, those at or above 788 degrees F. I can, thus, if I desire, make use of continuous processes for coating materials.
VVheiy I claim is The process of coating materials having un iron base which consists in subjecting the seme to e Coating bath and then hent-t1e:\ting such coated nmteriul at temperatures at 01 above 788 degrees F., for a certain inter- 'al of time, the time Varying with the, nature of the material heat-treated and the tempermute to which themateriul is subjected, Such time interval varying-inversely with 10 the temperatures.
ln witness whereof, l have hereunto nffixed my hand and seul this 18th day of March, 1922.
JOSEPH L. '.vimimi.y
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US546705A US1477703A (en) | 1922-03-25 | 1922-03-25 | Process of coating and treating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US546705A US1477703A (en) | 1922-03-25 | 1922-03-25 | Process of coating and treating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1477703A true US1477703A (en) | 1923-12-18 |
Family
ID=24181639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US546705A Expired - Lifetime US1477703A (en) | 1922-03-25 | 1922-03-25 | Process of coating and treating materials |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1477703A (en) |
-
1922
- 1922-03-25 US US546705A patent/US1477703A/en not_active Expired - Lifetime
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