US941854A - Manufacture of plates and sheets. - Google Patents
Manufacture of plates and sheets. Download PDFInfo
- Publication number
- US941854A US941854A US48479309A US1909484793A US941854A US 941854 A US941854 A US 941854A US 48479309 A US48479309 A US 48479309A US 1909484793 A US1909484793 A US 1909484793A US 941854 A US941854 A US 941854A
- Authority
- US
- United States
- Prior art keywords
- plates
- sheets
- manufacture
- finish
- cold
- 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
- 238000004519 manufacturing process Methods 0.000 title description 8
- 238000000137 annealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
- C23C8/18—Oxidising of ferrous surfaces
Definitions
- My invention has relation to the manufacture of metal plates and sheets and is designed to provide a novel method of treatment, whereby the plates are given a polished oxidized blued surface or finish of superior character.
- a further object of the invention is to provide a method of this character which will materially reduce the number of steps of operations which have heretofore been necessary for the production of a finish of this character, thereby materially reducing the time, labor and cost of manufacture and correslpondingly increasing the output of the m1
- a still further object is to provide a method by which the finished plates or sheets will be perfectly flat and free from warping or buckling, such as has been experienced heretofore in the manufacture of this class of plates and sheets.
- the box with the contained plates or sheets is then removed from the furnace and steam is introduced to produce an oxidizing atmosphere,
- the cold plates or sheets are then given one or more cold roll passes, one being usually sufficient. They are then again annealed and allowed to partially cool in the annealing box out of contact with the atmos )here. They are then in their partially coole state and preferably at a temperature of about 300 F. to 1000 F passed through one or more stands of polishing rolls, being further cooled during this operation. After they are cold, they are then given a final finlshing cold roll pass. The effect of this cold finishing pass is to remove all buckling or warping produced by the warm pass, and giyes a perfectly fiat sheet with a highly polished uniform blued finish.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Description
UNITED STATES PATENT OFFICE:
DAVID S. BROOKMAN, 0F WELLSVILLE, OHIO, ASSIGNOR TO AMERICAN SHEET & TIN PLATE COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF NEW Patented Nov. 30, 1909.
JERSEY.
MANUFACTURE OF PLATES AND SHEETS.
941,854.. Specification of Letters Patent.
N 0 Drawing. Application filed March 20, 1909.
Serial No. 484,793.
To all whom it may concern:
Be it known that I, DAVID S. BROOKMAN, of lVellsville, in the county of Columbiana and State of Ohio, have invented a new and useful Improvement in the Manufacture of Plates and Sheets, of which thefollowing is a full, clear, and exact description.
My invention has relation to the manufacture of metal plates and sheets and is designed to provide a novel method of treatment, whereby the plates are given a polished oxidized blued surface or finish of superior character.
A further object of the invention is to provide a method of this character which will materially reduce the number of steps of operations which have heretofore been necessary for the production of a finish of this character, thereby materially reducing the time, labor and cost of manufacture and correslpondingly increasing the output of the m1 A still further object is to provide a method by which the finished plates or sheets will be perfectly flat and free from warping or buckling, such as has been experienced heretofore in the manufacture of this class of plates and sheets.
In accordance with my invention, I take the plates or sheets which have been hot rolled in the usual manner and place them in an annealing box and bring them up to an annealing temperature. The box with the contained plates or sheets is then removed from the furnace and steam is introduced to produce an oxidizing atmosphere,
while the plates are cooling. The resulting oxidation of the plates produces what is known as a steam blued finish, and the cold plates or sheets are then given one or more cold roll passes, one being usually sufficient. They are then again annealed and allowed to partially cool in the annealing box out of contact with the atmos )here. They are then in their partially coole state and preferably at a temperature of about 300 F. to 1000 F passed through one or more stands of polishing rolls, being further cooled during this operation. After they are cold, they are then given a final finlshing cold roll pass. The effect of this cold finishing pass is to remove all buckling or warping produced by the warm pass, and giyes a perfectly fiat sheet with a highly polished uniform blued finish.
I claim:
In the manufacture of plates or sheets,-
my hand.
DAVID S. BROOKMAN. Witnesses:
F. L. WELLS, W. R. MACDONALD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48479309A US941854A (en) | 1909-03-20 | 1909-03-20 | Manufacture of plates and sheets. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48479309A US941854A (en) | 1909-03-20 | 1909-03-20 | Manufacture of plates and sheets. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US941854A true US941854A (en) | 1909-11-30 |
Family
ID=3010276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US48479309A Expired - Lifetime US941854A (en) | 1909-03-20 | 1909-03-20 | Manufacture of plates and sheets. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US941854A (en) |
-
1909
- 1909-03-20 US US48479309A patent/US941854A/en not_active Expired - Lifetime
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