US144726A - Improvement in the manufacture of bessemer-steel-converter tuyeres - Google Patents
Improvement in the manufacture of bessemer-steel-converter tuyeres Download PDFInfo
- Publication number
- US144726A US144726A US144726DA US144726A US 144726 A US144726 A US 144726A US 144726D A US144726D A US 144726DA US 144726 A US144726 A US 144726A
- Authority
- US
- United States
- Prior art keywords
- bessemer
- steel
- manufacture
- tuyeres
- improvement
- 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 4
- 239000004927 clay Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004017 vitrification Methods 0.000 description 2
- 238000009618 Bessemer process Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
Definitions
- This invention has for its object to improve the construction of the tuyeres employed in the process of manufacturing bessemer steel, in order to render the same more durable in use and simple in construction than others heretofore made.
- the invention consists in forming the tuyere of a refractory material, such as Jersey clay or other fire-brick clay, combined with fine molding sand or loam, the various materials being intimately mixed and molded into shape with the necessary cylindrical or conical shaped blast openings, and subse quently subjected to a baking process, until the tuyere presents a dark yellow color, which determines the completion of the baking operation.
- a refractory material such as Jersey clay or other fire-brick clay
- a tuyere composed of the materials specified diifers in many important respects from the tuyeres now in use, whether composed of fire-clay or of a carbonaceous material, for the latter are, in a comparatively short time, worn 011 or disintegrated, so far as the surface exposed to the metal is concerned, while in a tuyere constructed according to my invention the air, in its passage through the blast-holes, will tend to vitrify the surface with which it comes in contact, and also cause the top of the tuyere to become vitrified to such a depth that the molten metal cannot wash away or enlarge the blastholes as in clay tuyeres.
- the materials used in the formation of the tuyeres are combined in about the proportions of one-half loam or molders sand and onehalf of fire or other suitable clay, for it has been found that the vitrification and solidifieaing also decidedly superior in many respects to the latter.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
UNITED STATES PATENT OFFICE.
JAMES E. ATWOOD, OF PITTSBURG, PENNSYLVANIA.
IMPROVEMENT m THE MANUFACTURE or BESSEMER-STEEL-CONVERTER TUYERES.
Specification forming part of Letters Patent No. 144,726, dated November 18, 1873; application filed November 7, 1873.
To all whom it may concern:
Be it known that I, JAMES E. ATWOOD, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in the Manufacture of Bessemer Steel, of which the following is a specification This invention has for its object to improve the construction of the tuyeres employed in the process of manufacturing bessemer steel, in order to render the same more durable in use and simple in construction than others heretofore made. The invention consists in forming the tuyere of a refractory material, such as Jersey clay or other fire-brick clay, combined with fine molding sand or loam, the various materials being intimately mixed and molded into shape with the necessary cylindrical or conical shaped blast openings, and subse quently subjected to a baking process, until the tuyere presents a dark yellow color, which determines the completion of the baking operation.
A tuyere composed of the materials specified diifers in many important respects from the tuyeres now in use, whether composed of fire-clay or of a carbonaceous material, for the latter are, in a comparatively short time, worn 011 or disintegrated, so far as the surface exposed to the metal is concerned, while in a tuyere constructed according to my invention the air, in its passage through the blast-holes, will tend to vitrify the surface with which it comes in contact, and also cause the top of the tuyere to become vitrified to such a depth that the molten metal cannot wash away or enlarge the blastholes as in clay tuyeres.
be used for as many as twenty-five to thirtyiive heats or blows before being rendered use less. It has also been found that the original form or dimensions of the blast-holes are preserved to a great extent during a constant use of the tuyere, and therefore no apprehension need exist as to the wearing awa Y or enlargement of the inner surface thereof, as in the old form of tuyeres.
The materials used in the formation of the tuyeres are combined in about the proportions of one-half loam or molders sand and onehalf of fire or other suitable clay, for it has been found that the vitrification and solidifieaing also decidedly superior in many respects to the latter.
I claim as my invention-- A tuyere for the manufacture of steel by the bessemer process, composed of fire-clay and loam or molders sand, prepared substantial] y as described, for securing the vitrification of the tuyere, as specified.
In testimony that I claim the foregoing I have hereunto set my hand this 7th day of November, 1873.
JAS. E. ATWOOD. Witnesses: JAMES L. Nonms, ALBERT H. Normrs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US144726A true US144726A (en) | 1873-11-18 |
Family
ID=2214139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144726D Expired - Lifetime US144726A (en) | Improvement in the manufacture of bessemer-steel-converter tuyeres |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US144726A (en) |
-
0
- US US144726D patent/US144726A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US144726A (en) | Improvement in the manufacture of bessemer-steel-converter tuyeres | |
| US284502A (en) | Plastic refractory material for repairing ingot-molds | |
| US3586741A (en) | Manufacture of cement as melted fibers | |
| US4540A (en) | Improvement in the manufacture of iron and steel | |
| US145462A (en) | Improvement in the manufacture of iron | |
| US447360A (en) | Process of manufacturing mineral wool | |
| US783797A (en) | Making fire-brick. | |
| US454346A (en) | Artificial stone | |
| US661549A (en) | Process of manufacturing steel. | |
| US169261A (en) | Improvement in the manufacture of castings from wrought and cast iron | |
| US67651A (en) | Improved tuyere fob blast-fubnaoe | |
| US1762098A (en) | Ingot mold | |
| US789451A (en) | Manufacture of metallurgical vessels. | |
| US187386A (en) | Improvement in processes of manufacturing bessemer steel | |
| US208364A (en) | Improvement in paving-stone | |
| US1614846A (en) | Method of making metal castings | |
| GB190513886A (en) | An Improved Process for the Treatment of Blast Furnace Slag for Production of Material similar to Trass and the like. | |
| US84041A (en) | Improvement in treating cast-iron for the manufacture of car-wheels | |
| US281212A (en) | Benjamin f | |
| US138781A (en) | Improvement in compounds for tuyeres | |
| US145326A (en) | Improvement in compositions for lining furnaces, crucibles | |
| US1777617A (en) | Process and apparatus for refining industrial metals in the molten state | |
| US850723A (en) | Compound for facing the ports of open-hearth steel-furnaces. | |
| US905925A (en) | Refractory material for furnaces and crucibles. | |
| US221649A (en) | Improvement in treating furnace-slag to convert the same into tiles, slabs |