US1241971A - Melting-pot or crucible. - Google Patents
Melting-pot or crucible. Download PDFInfo
- Publication number
- US1241971A US1241971A US10810216A US10810216A US1241971A US 1241971 A US1241971 A US 1241971A US 10810216 A US10810216 A US 10810216A US 10810216 A US10810216 A US 10810216A US 1241971 A US1241971 A US 1241971A
- Authority
- US
- United States
- Prior art keywords
- melting
- crucible
- pot
- brass
- iron
- 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
- 238000002844 melting Methods 0.000 description 20
- 230000008018 melting Effects 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 229910001369 Brass Inorganic materials 0.000 description 9
- 239000010951 brass Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229940108928 copper Drugs 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000753 refractory alloy Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- QUQFTIVBFKLPCL-UHFFFAOYSA-L copper;2-amino-3-[(2-amino-2-carboxylatoethyl)disulfanyl]propanoate Chemical compound [Cu+2].[O-]C(=O)C(N)CSSCC(N)C([O-])=O QUQFTIVBFKLPCL-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S122/00—Liquid heaters and vaporizers
- Y10S122/13—Tubes - composition and protection
Definitions
- My invention relates to melting pots or cruclbles for melting metallic substances of high melting point, suchas brass, cop.- per and the like, and has for its object to provide a commercially practicable cast metallic melting pot or crucible for use in the manufacturing arts for melting cop per, brass and the like in quantities such as are now melted in graphite crucibles. It further has for its object to provide such a melting pot or crucible in which the time and fuel required for melting substances of high melting point is reduced largely below that requlred in present practice. It further has for its object to produce such ",melting pots or crucibles which shall not be liable to break when hit or handled and may be repeatedly used for many times. The cost of using crucibles such as at i present.
- the combined chromium and nickel preferably amount to sixty() per cent.
- the preferred alloy contains chromium twelve (12)' per cent, nickel sixty (60) per cent, iron twenty-six (26) per cent, and manganese one and one-half (1%) per cent.
- Cobalt can be substituted for nickel, bein ofsubstantially the same'character.
- Co alt isassociated with iron in Mendeleefs table and of substantially the same atomic weight.
- a cruciings 1 is .the wall of a crucible of ordinary external shape cast of the alloy above referred to, which is very refractory, and of a conductivity which is low though higher than the conductivity ofgraphite. It has a flat bottom 2 and is adapted to stand upon the floor of a furnace.- The wall thickens 'somewhatas'it approaches the base, since the pressure, and heat are more severe at that point.
- the walls of the crucibles embodying my invention are thin, being about one-half as thick as the walls of a commercial graphite crucible of the same dimensions. They are I thin enough to be kept from melting under ordinary brass or copper melting conditions,
- Mendeleefs table and of Gare should be taken not to overheat it, i. 6., to not expose it to a melting temperature above 2000 F. for a considerable period after the melting of the contents is completed, since if that .is done it may be injured. It will, however, Withstand any heat treatment necessary for melting brass, copper and the like.
- a cast thin Walled metallic melting composed of a highly refractory alloy of low heat Conductivity and resistant to the action of molten brass, said pot having a refractory, non-flaking coating upon its exposed surface.
- A. cast metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated With iron the same atomic Weight as iron,
- a cast metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated with iron in Mendeleefs table and of substantially the same atomic Weight as iron, said pot having a refractory, non-flaking coating upon its exposed surface.
- Acast thin Walled metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated with iron in Mendeleefs table and of substantially the same atomic Weight as iron, said pot having a refractory, non-flaking coating upon its exposed surface, and the Wall thereof increasing in thickness as it approaches the base.
- a cast metallic melting pot composed of a highly refractory alloy containing nickel and a metal having the characteristics of chromium, the combined nickel and said other metal amounting to at least sixty per cent. (60%) of the alloy.
Description
UNITED, STATES PATENT onrucn.
JOHN C. HENDERSON, OF WASHINGTON,.DISTRICT OF COLUMBIA, ASSIGNORTO DRIVER- HARRIS COMPANY, 01? HARRISON, NEW JERSEY, A CORPORATION OF NEW JERSEY.
MELTING-POT on orwcnsnn.
* To all whom. it may concern:
Be it known-that I, Jean C. HENDERSON, a citizen of the United States, residin at Washington, in the District of Colum ia, have invented certain new and useful Im-. provements in Melting-Pots or Crucibles, of which the following is a full, clear, andexact description.
My invention relates to melting pots or cruclbles for melting metallic substances of high melting point, suchas brass, cop.- per and the like, and has for its object to provide a commercially practicable cast metallic melting pot or crucible for use in the manufacturing arts for melting cop per, brass and the like in quantities such as are now melted in graphite crucibles. It further has for its object to provide such a melting pot or crucible in which the time and fuel required for melting substances of high melting point is reduced largely below that requlred in present practice. It further has for its object to produce such ",melting pots or crucibles which shall not be liable to break when hit or handled and may be repeatedly used for many times. The cost of using crucibles such as at i present. used is verygreat, due to the fact that they frequently break so that they not only have to be replaced but also often lose them contents and, moreover, they transmit the heat sosowly as to consume what I have found to be an unnecessarily long period of time and great amount of fuel in each heat.
'I have discovered that the cost and loss can be largely reduced by using a crucible I suchas below specified.
In practice in making a crucible, involving my invention, I cast the same froman alloy containing fromffive (5) to thirty (30) percent. of chromium and. fifty (5 0) to ninety (90) per cent..of nickel. The combined chromium and nickel preferably amount to sixty() per cent. The preferred alloy contains chromium twelve (12)' per cent, nickel sixty (60) per cent, iron twenty-six (26) per cent, and manganese one and one-half (1%) per cent. Cobalt can be substituted for nickel, bein ofsubstantially the same'character. Co alt isassociated with iron in Mendeleefs table and of substantially the same atomic weight.
Good results can be obtained if the iron con- Y tent above referred to is omitted.
Specification of Letters Patent.
ble embodying my invention, reference being had to the accompanyin drawing which shows a vertical section 0 a crucible embodying my invention for use in an. ordinary furnace.
; Referring more particularly to the draw- Patented Oct. 2, 1917.- Application filed July 8, 1916. Serial No. 108,102.
i i The following is a description of a cruciings, 1 is .the wall of a crucible of ordinary external shape cast of the alloy above referred to, which is very refractory, and of a conductivity which is low though higher than the conductivity ofgraphite. It has a flat bottom 2 and is adapted to stand upon the floor of a furnace.- The wall thickens 'somewhatas'it approaches the base, since the pressure, and heat are more severe at that point.
The walls of the crucibles embodying my invention are thin, being about one-half as thick as the walls of a commercial graphite crucible of the same dimensions. They are I thin enough to be kept from melting under ordinary brass or copper melting conditions,
by the cooling effect of. melting brass orcopper contained therein, until'the brass or [copper reaches the required pouring temperature. If too thick the wall, on account vof'the poor heat conductivity "of its alloy, is
liable to soften and become porous. In a crucible ten inches in. diameter at the top I have found that making the average thickness of the wall about five-eighths of an inch My crucibles, on acgives good results. count of their thinness and specific conduct1vity,'conduct the heat of a furnace to their contents much more readily than do graphite cruciblesso that the time and fuel .for each meltis reduced. They resist the action of molten brass or copper so that the quality of such contents is not afl'ected'by the crucible; They remainstrong at the high temperature necessary to'melt brass or copper and can be used repeatedly many times. They do not have, to be heated or dried before using as is the case with graphite crucibles audit is unnecessary to keep a large reserve stock on hand. They are highly resistant to oxidation and though a slight film forms, constituting a coating.
3 upon the surface, that filmprotec'ts the body ofthe crucible and is itself refractory non-flaking and-very resistant to the action of its contents. i
In operating .with a crucible embodying 110 my invention, it is put into a furnace in the ordinary manner.
pot
in Mendeleefs table and of Gare should be taken not to overheat it, i. 6., to not expose it to a melting temperature above 2000 F. for a considerable period after the melting of the contents is completed, since if that .is done it may be injured. It will, however, Withstand any heat treatment necessary for melting brass, copper and the like.
As will be evident to those slm'lled in the art, my invention permits of various modifications Without departing from the spirit or the scope of the appended claims.
What ll claim is:
1. A cast thin Walled metallic melting composed of a highly refractory alloy of low heat Conductivity and resistant to the action of molten brass, said pot having a refractory, non-flaking coating upon its exposed surface. I
2, A. cast metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated With iron the same atomic Weight as iron,
substantially rattan 3. A cast metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated with iron in Mendeleefs table and of substantially the same atomic Weight as iron, said pot having a refractory, non-flaking coating upon its exposed surface.
4. Acast thin Walled metallic melting pot composed of a highly refractory alloy containing chromium and a metal associated with iron in Mendeleefs table and of substantially the same atomic Weight as iron, said pot having a refractory, non-flaking coating upon its exposed surface, and the Wall thereof increasing in thickness as it approaches the base.
5.: A cast metallic melting pot, composed of a highly refractory alloy containing nickel and a metal having the characteristics of chromium, the combined nickel and said other metal amounting to at least sixty per cent. (60%) of the alloy.
JOHN 0. HENDERSQN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10810216A US1241971A (en) | 1916-07-08 | 1916-07-08 | Melting-pot or crucible. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10810216A US1241971A (en) | 1916-07-08 | 1916-07-08 | Melting-pot or crucible. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1241971A true US1241971A (en) | 1917-10-02 |
Family
ID=3309775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10810216A Expired - Lifetime US1241971A (en) | 1916-07-08 | 1916-07-08 | Melting-pot or crucible. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1241971A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920784A (en) * | 1955-12-01 | 1960-01-12 | Chicago Bridge & Iron Co | Liquid storage vessel |
| US4528163A (en) * | 1979-07-12 | 1985-07-09 | Heraeus Quarzschmelze Gmbh | Crucible for semiconductor manufacturing purposes and a process for manufacturing the crucible |
-
1916
- 1916-07-08 US US10810216A patent/US1241971A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920784A (en) * | 1955-12-01 | 1960-01-12 | Chicago Bridge & Iron Co | Liquid storage vessel |
| US4528163A (en) * | 1979-07-12 | 1985-07-09 | Heraeus Quarzschmelze Gmbh | Crucible for semiconductor manufacturing purposes and a process for manufacturing the crucible |
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