US281044A - Process of analyzing pig-iron - Google Patents
Process of analyzing pig-iron Download PDFInfo
- Publication number
- US281044A US281044A US281044DA US281044A US 281044 A US281044 A US 281044A US 281044D A US281044D A US 281044DA US 281044 A US281044 A US 281044A
- Authority
- US
- United States
- Prior art keywords
- iron
- analyzing
- furnace
- blast
- metal
- 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
- 238000000034 method Methods 0.000 title description 8
- 229910000805 Pig iron Inorganic materials 0.000 title description 4
- 229910000499 pig iron Inorganic materials 0.000 title description 4
- 239000002184 metal Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
Definitions
- My object is to make an immediate test practicable without delaying the transfer of the metal from the blast-furnace.
- the invention consists, briefly, in taking a small quantity of the molten iron, and by pouring it into water granulating it, in which condition it is quite brittle, and then crushing and analyzing the granules. More fully, my invention is as follows: Usually the metal is transferred in a ladle set on trucks, and as the converting-works are generally some distance from the blast-furnace, it generally takes from twenty minutes to a half hour from the first tapping of the blast-furnace till the ladle is brought to the converter. As soon as the metal begins to run from the furnace, I catch or dip up a small quantity of it and let it drop sev eral feet into Water, preferably clean Water in a clean vessel.
- the metal divides into small globules or pellets, which chill at once. These can be taken at once to the laboratory, and, being extremely brittle, they'can be very readily crushed in a steel mortar, and thus reduced to the condition required for analysis.
- the analysis which is at this stage desired, requires but a few minutes to determine, the result is that I can have the report on the contents of the ladle ready by thetime the latter has arrived at the converting-works. There is therefore no delay caused in the proper carrying out of the direct process, and at the same time, the precise character of the metal being analytically determined, the reagents of conversion may be accurately regulated and the standard product maintained-a result which is unattainable in the present practice of making samples and boring them after slow cooling.
- I claim as my invention The method of analyzing the runs of a blastfurnace, consisting in first granulating some of the molten metal by pouring into water and then crushing and analyzing the said granules, substantially as described.
Description
UNITED STAT-Es PATEIYLOEFICE- SAMUELA. FORD, or-rrrrsnune, PENNSYLVANIA.
PRocEssoF ANALYZINGPIGV- IRON .FROM "BLAST-FURNACES.
SPECIFICATION forming part of Letters Patent No. 281,044, dated July 10, 1883.
7 Application filed Januaryl'l, 188 3. (No specimens.)
new and useful Improvements in Processes 0fv Analyzing Pig-Iron from Blast-Furnaces; and I do hereby declare thatthe following is a full,
' clear,and exact description of the invention,
analysis cannot be had for several hours.
which will enable others skilled in the art to which it appertains to make and use the same.
In the manufacture of steel, whether Bessemer or openhearth, by the direct process, wherein the molten metal is taken directly from the blast-furnace to the converter or furnace, it is practically out of the question to obtain a running analysis of the charge in time to be of service. If the usual f sample be cast and allowed to cool in the ordinary way, the If the sample-piece he suddenly cooled in water, it chills, and cannot bereadily broken up or drilled for the test. Meanwhile the ladle of molten metal drawn from theblast-furnace cannot be held for' such a length of time; hence the character of the contents of the ladle must be to a certain extent guessed at, es-
pecially with reference to the contained sili-.
con.
My object is to make an immediate test practicable without delaying the transfer of the metal from the blast-furnace.
The invention consists, briefly, in taking a small quantity of the molten iron, and by pouring it into water granulating it, in which condition it is quite brittle, and then crushing and analyzing the granules. More fully, my invention is as follows: Usually the metal is transferred in a ladle set on trucks, and as the converting-works are generally some distance from the blast-furnace, it generally takes from twenty minutes to a half hour from the first tapping of the blast-furnace till the ladle is brought to the converter. As soon as the metal begins to run from the furnace, I catch or dip up a small quantity of it and let it drop sev eral feet into Water, preferably clean Water in a clean vessel. As soon as it strikes the water, the metal divides into small globules or pellets, which chill at once. These can be taken at once to the laboratory, and, being extremely brittle, they'can be very readily crushed in a steel mortar, and thus reduced to the condition required for analysis. As the analysis, which is at this stage desired, requires but a few minutes to determine, the result is that I can have the report on the contents of the ladle ready by thetime the latter has arrived at the converting-works. There is therefore no delay caused in the proper carrying out of the direct process, and at the same time, the precise character of the metal being analytically determined, the reagents of conversion may be accurately regulated and the standard product maintained-a result which is unattainable in the present practice of making samples and boring them after slow cooling.
I claim as my invention The method of analyzing the runs of a blastfurnace, consisting in first granulating some of the molten metal by pouring into water and then crushing and analyzing the said granules, substantially as described.
In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two Witnesses.
SAMUEL A. FORD.
\Vitnesses XVM. I. Mann, '1. J. McTiei-in.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US281044A true US281044A (en) | 1883-07-10 |
Family
ID=2350256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US281044D Expired - Lifetime US281044A (en) | Process of analyzing pig-iron |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US281044A (en) |
-
0
- US US281044D patent/US281044A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62500181A (en) | Manufacturing method of CV graphite cast iron | |
| CN110438282B (en) | Casting process of high-strength and high-toughness nodular cast iron | |
| Park et al. | Dissolution kinetics of alumina in molten CaO–Al2O3–FetO–MgO–SiO2 oxide representing the RH slag in steelmaking process | |
| CN108220752A (en) | A kind of high-strength high temperature-resistant spheroidal graphite cast-iron and nodular cast iron pipe fittings casting technique | |
| CN109136728A (en) | A kind of high-intensity and high-tenacity cast condition ductile iron and preparation method thereof | |
| US281044A (en) | Process of analyzing pig-iron | |
| USRE10395E (en) | Process of analyzing pig-iron from blast-furnaces | |
| CN1321324C (en) | Method for determination of amount of carbon and silicon in molten iron | |
| Nakai et al. | Development of slag recycling process in hot metal desulfurization with mechanical stirring | |
| Itofuji et al. | Development of Semi-Solid Die Casting Process in Spheroidal Graphite Cast Irons | |
| Machuta et al. | Metallurgy of the Grey Cast Iron for the Automotive Parts | |
| Bockus et al. | Effect of melting techniques on ductile iron castings properties | |
| Anameric et al. | Manipulation of slag separation properties from pig iron nuggets with flux additions to dried greenball mixture | |
| Kanno et al. | Prediction of graphite nodule count and shrinkage tendency of spheroidal graphite cast iron by one cup thermal analysis | |
| Elbanna et al. | Mechanical properties of thin wall ductile iron: experimental correlation using ANOVA and DOE | |
| CN108998617A (en) | A method of control spheroidal graphite cast-iron Oxygen potential | |
| Hayes et al. | Solidification of oxide melts | |
| US2595294A (en) | Production of iron for use in the manufacture of cast iron products | |
| Zych et al. | The Problem of Assessing the Graphitizing Abilities of Near-eutectic Cast Iron-Basic Cast Iron for Modification | |
| Thiele et al. | Energy dispersive X-ray analysis (SEM-EDS) on slag samples from medieval bloomery workshops–the role of phosphorus in the archaeometallurgy of iron in Somogy County, Hungary | |
| Swain et al. | Post inoculation in the structural control of ductile cast iron | |
| de Paula Lopes et al. | A predictive model for hydrogen content in steel in non-degassed heats | |
| US1820179A (en) | Method of preparing or remelting wrought iron slag | |
| US1131799A (en) | Method of making alloys. | |
| Kuder et al. | Pomiar zawartości gazów w kąpieli metalowej drogą do optymalizacji zabiegów odtleniania i modyfikacji staliwa na odlewy |