US131634A - Improvement in processes of rendering cast-iron malleable - Google Patents
Improvement in processes of rendering cast-iron malleable Download PDFInfo
- Publication number
- US131634A US131634A US131634DA US131634A US 131634 A US131634 A US 131634A US 131634D A US131634D A US 131634DA US 131634 A US131634 A US 131634A
- Authority
- US
- United States
- Prior art keywords
- iron
- processes
- improvement
- malleable
- cast
- 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
- 229910001018 Cast iron Inorganic materials 0.000 title description 6
- 238000000034 method Methods 0.000 title description 4
- 238000009877 rendering Methods 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 38
- 229910052742 iron Inorganic materials 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 18
- 229910001296 Malleable iron Inorganic materials 0.000 description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 235000021110 pickles Nutrition 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/84—Controlled slow cooling
Definitions
- LEXANDER H SIEGFRIED, OF LEWIsBURe, PENNSYLVANIA.
- My invention relates to the preparation of malleable iron from cast-iron by mixing with the molten fluid iron, before running into molds, a certain chemical compound, and then immersing in a bath or pickle the object cast, said bath containing, in solution, certain chemicals, and then annealing the casting so treated.
- the compound which I mix with the molten iron is composed of the following ingredients inthefollowing proportions, viz. Concentrated lye, one pound; sal-soda, one pound; sulphate of copper, one and one-half pound; sal-ammoniac, one pound; sulphate of potash, onefourth pound; nitrate of potash, one-fourth pound; common salt, three and one-fourth pounds.
- This compound may be mixed with the iron while still in the furnace, or may be mixed with the molten iron after it is drawn from the furnace .into the ladle and ,before it is poured into the molds.
Description
'J ITED STATES PATENT OFFICE.
LEXANDER H. SIEGFRIED, OF LEWIsBURe, PENNSYLVANIA.
Specification forming part of Letters Patent No. 131,634, dated September 24, 1872 To all whom it may concern:
Be it known that I, ALEXANDER H. SIEG- FRIED, of Lewisburg, Union county, State of Pennsylvania, have invented a new Method of Rendering (last-Iron Malleable, of which the following is a specification:
My invention relates to the preparation of malleable iron from cast-iron by mixing with the molten fluid iron, before running into molds, a certain chemical compound, and then immersing in a bath or pickle the object cast, said bath containing, in solution, certain chemicals, and then annealing the casting so treated.
The compound which I mix with the molten iron is composed of the following ingredients inthefollowing proportions, viz. Concentrated lye, one pound; sal-soda, one pound; sulphate of copper, one and one-half pound; sal-ammoniac, one pound; sulphate of potash, onefourth pound; nitrate of potash, one-fourth pound; common salt, three and one-fourth pounds. I use of this compound from four to five pounds to every hundred pounds of iron to be treated. This compound may be mixed with the iron while still in the furnace, or may be mixed with the molten iron after it is drawn from the furnace .into the ladle and ,before it is poured into the molds. hen the former method is adopted the iron is melted quite thin, and the damper to the furnace is closed and the blast taken oif, and the compound put into the. iron and the mass worked thoroughly for a few minutes; then the damper is opened and the blast put on and a strong flame created, so as to expel the gases and other impurities. When the compound is put into the ladle the iron should be stirred freely,
that a thorough mixture may take place. The metal into which this compound has been put having been run into the molds, I take out the casting while it is at a low cherryred heat and plungeit in a bath or pickle composed of the following ingredients in the following proportions, viz.: Water, one gallon; v
Claims.
What I claim as new, and desire to secure by Letters Patent, is-
1. The employment, in' making malleable iron, of the processes substantially as described above.
2. The compound herein described for mixing with molten iron prior to its being run into molds.
3. The bath hereinb'efore described for treating cast-iron.
. 4.. The use, in making malleable iron, of the compound and bath, as hereinbefore substantially described.
In testimony whereof I have signed my name to this specification before twosubscribing witnesses.
ALEXANDER H. SIEGFRIED.
Witnesses:
OHAs. A. 'NEALE, ROBT. V. HUGHES.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US131634A true US131634A (en) | 1872-09-24 |
Family
ID=2201051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131634D Expired - Lifetime US131634A (en) | Improvement in processes of rendering cast-iron malleable |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US131634A (en) |
-
0
- US US131634D patent/US131634A/en not_active Expired - Lifetime
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