US216117A - Improvement in processes of casting steel ingots - Google Patents
Improvement in processes of casting steel ingots Download PDFInfo
- Publication number
- US216117A US216117A US216117DA US216117A US 216117 A US216117 A US 216117A US 216117D A US216117D A US 216117DA US 216117 A US216117 A US 216117A
- Authority
- US
- United States
- Prior art keywords
- improvement
- processes
- casting steel
- steel ingots
- mold
- 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
- 229910000831 Steel Inorganic materials 0.000 title description 14
- 238000000034 method Methods 0.000 title description 14
- 239000010959 steel Substances 0.000 title description 14
- 238000005266 casting Methods 0.000 title description 10
- 239000002184 metal Substances 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000003610 charcoal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 101700007857 unc-3 Proteins 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Definitions
- My improvement consists in producing ingots of a more perfect, equal, and homogeneous formation throughout than has been done by any of the methods heretofore in use, by which process the deep central recess called piping, caused by shrinkage in cooling in the usual way, is avoided, and the cast ingot is materially improved.
- Thehighly-heated substance used should be permeable by the gases.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
'WILLIAM A. SWEET, OF SYRACUSE, NEW YORK.
lMPROVEMENT lN PROCESSES OF CASTING STEEL lNG OTS.
Specification forming part of Letters Patent No. 216,117, dated J unc 3, 1879; application filed March 19, 1879.
To all whom it may concern Be it known that I, WILLIAM A. SWEET, of Syracuse, Onondaga county, State of New York, have invented certain Improvements in the Process of Casting Steel Ingots, 850., of which the following is a specification.
My improvement consists in producing ingots of a more perfect, equal, and homogeneous formation throughout than has been done by any of the methods heretofore in use, by which process the deep central recess called piping, caused by shrinkage in cooling in the usual way, is avoided, and the cast ingot is materially improved.
The process of melting and the process of pouring into the ordinary ingot-mold are not materially changed but instead of leaving the steel after it is poured to shrink at the center in cooling, and thereby forming a deep piping, by which a serious defect in the ingot is produced, I obviate it by heaping over the top of the mold a suffieient quantity of highlyheated charcoal or other carbonaceous combustible, or any efiicient slag or flux in a liquid and highly-heated state that will keep up the temperature sufiiciently high to cause the melted metal covered by or poured in through this highly-heated matter to flow in and fill up the center shrinkage as it" cools, so as to make the in got solid and homogeneous throughout its entire length nearly to the top, thus reducing the loss and equalizing the texture more perfectly than by the old methods, by which I effect a great improvement and saving. s
For the best effects I have obtained I have used finely-powdered charcoal intensely heated; but, by practice as well as in accordance with theory, I find that other substances, as above named, may be substituted and pro duce a good result in a highly-heated state. These are so well known to the metallurgist that they need not here be specified to elucidate my invention, the object of which, is to keep the metal in a sufficiently fluid state to fill in the center while consolidating and avoid piping.
It may be sometimes desirable, I have found, to place a smallquantity of highly-heated carbonaceous matter in the bottom of the mold before pouring, and then pour the melted metal through it, and it is well, after the carbon is placed upon the fluid steel in the mold, as before stated, to pour a small quantity of melted steel through the carbon into the top of the mold in finishing the pouring, the carbon being at the intensest heat and free from oxygen, and preventing oxidation of the metal.
Thehighly-heated substance used should be permeable by the gases.
Having thus fully stated my improved pro cess of casting steel ingots, I claim- The method of preventing piping in ingots, which consists in covering the molten metal while in the mold with a highly-heated substance, substantially as described, capable of protecting the metal from the outer air and permeable by the gases evolved in casting, as set forth.
V. A. SWEET.
Witnesses:
J. J. GREENOUGH, J. P. MUNRO.
2 sheets-sheet 1.
G. TESSIE du MOTAY & E J. JERZMANOWSKI. Apparatus for the Production ofGals for Metallurgical and Other Purposes. 1
No. 216,118. Pa tented June 3,1879.
2Sheets-Sheet2f C. TESSIE du MOTAY & E. J JERZMANOWSKI. Apparatus for the Production of Gas for Metallurgical and Other Purposes.
No. 216,118. Patented June 3,1879.
\Wkmmssms.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US216117A true US216117A (en) | 1879-06-03 |
Family
ID=2285519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US216117D Expired - Lifetime US216117A (en) | Improvement in processes of casting steel ingots |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US216117A (en) |
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0
- US US216117D patent/US216117A/en not_active Expired - Lifetime
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