US1615957A - Sintering refractory metals - Google Patents
Sintering refractory metals Download PDFInfo
- Publication number
- US1615957A US1615957A US666142A US66614223A US1615957A US 1615957 A US1615957 A US 1615957A US 666142 A US666142 A US 666142A US 66614223 A US66614223 A US 66614223A US 1615957 A US1615957 A US 1615957A
- Authority
- US
- United States
- Prior art keywords
- refractory metals
- sintering
- disk
- conductor
- sintering refractory
- 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
- 238000005245 sintering Methods 0.000 title description 6
- 239000003870 refractory metal Substances 0.000 title description 5
- 239000004020 conductor Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 108010085990 projectin Proteins 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
Definitions
- rllhis invention relates to the sintering of metals and has for its object the production of coherent bodies of highly refractory metals.
- This object is attained by supporting in a vacuum a mass of finely divided refractory metaly and passing ⁇ a relatively high electric current through the mass to heat itto a suliiciently high temperature to sinter it.
- a glass vessel 10 is provided with a neck 11 and a conduit 12 which is adaptedto lead to a vacuum pump, (not shown).
- a vtubular extension 13 protrudes from the vessel at a point opposite the neck 11 and has sealed at its end a copper disk 14 according to the method disclosed in the patent to W. (Jr. Houskeeper 1,293,441 of February 4, 1919.
- a leading-in conductor 15 passes through the disk 14 and is soldered or otherwise connected to the disk and projects up through the portion- 13. u
- a tubular ground glass stopper 16 is provided to fit 1n the neck 11 and close the vesse1. ⁇
- a copper disk 17 is sealed to theY outer .end of the stopper 16 according to the method, disclosed -in the aforementioned jHousekeeper patentl and is provided with a leading-in condutor 18 Vwhich extends into the interior ofthe vesselv 10.
- a tubular clamp 19 is threaded on to the end of the conductor 18 and is provided with .a nut 20 for tightenino the clamp. Held by the clamp is a body 21 of finely divided refractory metal compressed into a bar orl rod.
- the protruding portion 13 is rovided a supply of mercu 22 into whic dips a /meta1sleeve'23 carrled by the rod 21.
- the conductor 15 projects up into the sleeve .23.
- the conduit 12 is connected to an exhaust ump and thegas exhausted from the vesse 10.
- the leading-in conductors 15 and 18 are connected with a suitable source of electrical I energy and current passed through the rofl 21 to heat it to a sufficiently high temperature to lsinter it.
- This-"apparatus and method obviate the necessity of using hydrogen during the sintering process as it is possible to remove all mj urlous gases from they presence of the rod, and also permit the observation of the metal during the sintering process.
- Apparatus'. for sinterng bars of compressed metallic powder comprising an evacuable vessel, vacuum tight conductors for leading current into and out of said vessel, clamp fastenings for leading current into and outof said bar, means for attachng one of said conductors to one of said fastenings, a pool of mercury so disposed as to electrically connect the other said fastening to the other said conductor so that said bar may contract or expand freel 2.
- a vesse y having a neck and a tubular projectin portion, a metal disk sealed in theend 0% said tubular portion, an electrical conductor passing through said disk, a Ytubular stopper for said neck, a metal disk sealed in said stopper, a leading-in 'conductor passin through said disk, a clamp at (the end of said conductor, a body of metalsupported by said clamp, a supply of mercury in said tubular portion,'and a tubular metallic member attached to the end of said body of metal and extending into said mercury.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
1,615,957 Febl 1927 E. E. scHUMAcHER SINTERING REFRACTORY METALS Filed OC.. 2, 1923 Zwin/M Aff] 'Patented Feb. 1, 1927.
UNITED STATES PATENT OFFICE.
EABLE E. BCHUHACHEB, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED,
Y NEW YORK.
OF NEW YORK, N.' Y., A CORPORATION OF SINTERING REFRACTORY METALS.
Application 'led October 2, 1923. Serial No. 666,142.
rllhis invention relates to the sintering of metals and has for its object the production of coherent bodies of highly refractory metals.
This object is attained by supporting in a vacuum a mass of finely divided refractory metaly and passing` a relatively high electric current through the mass to heat itto a suliiciently high temperature to sinter it.
Referring now to the drawings, this single figure thereof discloses any apparatus for treating the metal. ,f
A glass vessel 10 is provided with a neck 11 anda conduit 12 which is adaptedto lead to a vacuum pump, (not shown). A vtubular extension 13 protrudes from the vessel at a point opposite the neck 11 and has sealed at its end a copper disk 14 according to the method disclosed in the patent to W. (Jr. Houskeeper 1,293,441 of February 4, 1919. A leading-in conductor 15 passes through the disk 14 and is soldered or otherwise connected to the disk and projects up through the portion- 13. u
A tubular ground glass stopper 16 is provided to fit 1n the neck 11 and close the vesse1.` A copper disk 17 is sealed to theY outer .end of the stopper 16 according to the method, disclosed -in the aforementioned jHousekeeper patentl and is provided with a leading-in condutor 18 Vwhich extends into the interior ofthe vesselv 10. A tubular clamp 19 is threaded on to the end of the conductor 18 and is provided with .a nut 20 for tightenino the clamp. Held by the clamp is a body 21 of finely divided refractory metal compressed into a bar orl rod. Inr the protruding portion 13 is rovided a supply of mercu 22 into whic dips a /meta1sleeve'23 carrled by the rod 21. The conductor 15 projects up into the sleeve .23.
With arod 21 supported' in the manner shown, the conduit 12 is connected to an exhaust ump and thegas exhausted from the vesse 10. The leading-in conductors 15 and 18 are connected with a suitable source of electrical I energy and current passed through the rofl 21 to heat it to a sufficiently high temperature to lsinter it.
This-"apparatus and method obviate the necessity of using hydrogen during the sintering process as it is possible to remove all mj urlous gases from they presence of the rod, and also permit the observation of the metal during the sintering process.
It is', ofcourse, understood that various modifications may be made in this apparatus without" departing in any way from the spirit of the invention, as set forth in the ap ended claims..
.he invention claimed is:
1. Apparatus'. for sinterng bars of compressed metallic powder comprising an evacuable vessel, vacuum tight conductors for leading current into and out of said vessel, clamp fastenings for leading current into and outof said bar, means for attachng one of said conductors to one of said fastenings, a pool of mercury so disposed as to electrically connect the other said fastening to the other said conductor so that said bar may contract or expand freel 2. In combination, a vesse yhaving a neck and a tubular projectin portion, a metal disk sealed in theend 0% said tubular portion, an electrical conductor passing through said disk, a Ytubular stopper for said neck, a metal disk sealed in said stopper, a leading-in 'conductor passin through said disk, a clamp at (the end of said conductor, a body of metalsupported by said clamp, a supply of mercury in said tubular portion,'and a tubular metallic member attached to the end of said body of metal and extending into said mercury.
'In witness whereof, I hereuntoI subscribe my name this 25th day of September A. D., 1923. I v
EARLE E. SCHUMACIHEIR..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US666142A US1615957A (en) | 1923-10-02 | 1923-10-02 | Sintering refractory metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US666142A US1615957A (en) | 1923-10-02 | 1923-10-02 | Sintering refractory metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1615957A true US1615957A (en) | 1927-02-01 |
Family
ID=24672992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US666142A Expired - Lifetime US1615957A (en) | 1923-10-02 | 1923-10-02 | Sintering refractory metals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1615957A (en) |
-
1923
- 1923-10-02 US US666142A patent/US1615957A/en not_active Expired - Lifetime
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