US20170203362A1 - Sintering device - Google Patents
Sintering device Download PDFInfo
- Publication number
- US20170203362A1 US20170203362A1 US15/158,986 US201615158986A US2017203362A1 US 20170203362 A1 US20170203362 A1 US 20170203362A1 US 201615158986 A US201615158986 A US 201615158986A US 2017203362 A1 US2017203362 A1 US 2017203362A1
- Authority
- US
- United States
- Prior art keywords
- tray
- side wall
- sintering
- base part
- gas
- 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.)
- Abandoned
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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
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
- B22F3/101—Changing atmosphere
-
- 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
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/04—Sintering pots or sintering pans
-
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F2003/1014—Getter
Definitions
- the present invention relates to a sintering device, and more particularly to a sintering device comprising a cylindrical member formed of titanium or titanium alloy to restrain oxidation of metallic workpieces to be sintered in the sintering device. Furthermore, the present invention relates to a sintering device in which a tray may be arranged on a base plate in a chamber member in a gas-tight manner without using any separate cover.
- a conventional sintering device of the above-mentioned type comprises a base part, a tray placed on the base part, a cover for covering the tray accommodating the sinter product and a tray chamber surrounding the tray and support plate.
- U.S. patent application Publication No. 2013/0149186 discloses a structure that a tray is disposed on a base plate with a space each other for flowing a gas.
- U.S. patent application Publication No. 2014/0299195 discloses a sintering device wherein a sintering material compartment member is placed on a base part and a cover is arranged in the sintering material compartment member.
- the present applicant has suggested a sintering device in Korean Patent Application No. 10-2015-0021470 filed on Feb. 12, 2015, which is incorporated herein for reference.
- the sinter device comprises a tray 20 placed on the base plate 10 , a cover member 30 for covering the tray and base plate.
- the cover member 30 includes a lower end engaged with a stepped portion of the base plate 10 and a middle stepped portion 32 supported on the upper end 23 of the tray 20 .
- a recessed portion 12 is formed at the edge of the base plate 10 for engaging the lower end 31 of the cover member 30 .
- a hole for gas inflow and outflow is formed in the center portion of the base plate.
- the tray 20 is sealed by the base plate 10 and cover member 30 .
- the tray 20 includes a gas flow passage which comprises a ring-shaped protrusion 21 formed at the bottom surface and recesses 22 in the ring-shaped protrusion 21 .
- the tray 20 is separated from the base plate 10 by the protrusion 21 .
- a sintering chamber should be formed by a least two elements arranged on the base plate, thereby causing an increase of manufacturing costs and complexity of structure.
- a sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part,
- tray part and base part are integrally formed
- the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and
- a cylindrical member for the prevention of oxidization may be disposed on the base part between the side walls of the tray part and sintering chamber to prevent the oxygen contacting the metallic workpiece.
- the cylindrical member for the prevention of oxidization is preferably formed in a sheet made from titanium or titanium allow.
- the inner diameter of the sidewall of the sintering chamber is bigger than the outer diameter of the side wall of the tray part to form a cylindrical space as a gas flow passage between the side walls of the tray part and sintering chamber, and the cylindrical space is communicated with the through holes in horizontal and longitudinal directions formed at the base part.
- FIG. 1 is a cross-section view of the conventional exploded sintering device in an exploded state which was filed by the present applicant;
- FIG. 2 is a cross-section view of the assembled sintering device in FIG. 1 ;
- FIG. 3 is an exploded perspective view showing the improved sintering device according to the preferred embodiment of the present invention, in which a tray part and a base part are integrally formed;
- FIG. 4 is a partial cross section view of the sintering device in FIG. 3 ;
- FIG. 5 is a cross section view of the assembled sintering device in FIG. 4 ;
- FIG. 6 is a cross section view of the variant embodiment of FIG. 5 .
- the sintering device includes a tray comprising a tray part 330 and a base part 331 integrally formed therewith and a sintering chamber 340 covering the tray part 330 , the upper portion of the tray part 330 being opened. That is, the tray part and the base part are different from a tray and a base plate in the FIGS. 1 and 2 in that the tray part and base part are integrally formed in one piece.
- the tray part 330 is provided with a cylindrical side wall 332 formed upwardly on the bottom surface to form an inner space for accommodating workpieces therein and the base part 331 is formed with through holes 334 in horizontal and longitudinal directions for gas inflowing and discharging, and a hole 335 at crossover point of the through holes 334 for penetrating the center portion of the base plate and extended to the exterior. Also, a lowered and stepped surface 333 is formed at the edge portion of the base part 331 .
- the through holes 334 work as a gas passage for inflowing the argon gas and discharging the residual gas in the inner space of the tray part and the hole 335 works as an gas inlet and an gas outlet connected to the gas supply and discharging means provided in the conventional sintering device.
- the sintering chamber 340 is mounted on the lowered and stepped surface of the base part for covering the tray part 330 and is provided with a cylindrical side wall 342 formed in the downward direction and a stepped portion 341 in the middle of the side wall to increase the inner diameter at the lower portion of the side wall.
- the sintering chamber 340 When the sintering chamber 340 is mounted for covering the tray part 330 , the lower end of the side wall 342 seats on the stepped surface 333 of the base part and the stepped portion 341 of the side wall 342 seats on the upper end of the side wall of the tray part 330 , so that gas may follow through a fine gap between them.
- the inner diameter of the side wall 342 of the sintering chamber 340 is bigger than that of the side wall 332 of the tray part 330 , so that a ring shaped space 336 is formed as a gas passage between the side walls 332 and 334 .
- the space 336 is connected to the horizontal and longitudinal through holes 334 formed at the base part.
- the argon gas supplied by (not shown) a gas supplying apparatus may flow into the ring shaped space 336 between the side walls 332 and 334 through the hole 335 and through holes 334 formed at the base part and the residual gas in the inner space of the tray part may be discharged via the same gas flowing paths mentioned above.
- the tray part and the base part are integrate in one piece, where the hole 335 and through holes 334 are formed at the base part 331 for the gas inflow and discharging and the stepped surface 333 of the base part is formed at the base part 331 for mounting the sintering chamber 340 , so that the sintering device may be compacted in virtue of the decrease of the number of parts and the manufacturing cost may be decreased. Accordingly, the sintering device according to the invention is improved as compared with the prior sintering device in which the tray and the base plate are separated, a spacer should be formed at the bottom for a space as a gas passage.
- the sintering device includes a cylindrical member 250 provided between the side wall of the tray part 330 and the side wall of the sintering chamber 340 for the prevention of oxidization.
- the cylindrical member 250 has a diameter which is bigger than that of tray part and smaller than that of the sintering chamber, so that the cylinder member may be arranged on the base part 331 and between the side walls of the tray part and sintering chamber. At this time, it is desirable that the cylinder member is separated from the side wall of the tray part 330 not to prevent the inflow and discharging of the gas.
- the argon gas supplied by the gas supplying apparatus may be flowed in the space 336 between the side walls 332 and 334 through the hole 335 and flows in the inner space of the tray part 330 , thereby urging the residual gas in the inner space of the tray part to be discharged and the argon atmosphere is formed in the inner space of the tray part. Therefore, in the sintering operation, the oxygen remained in the space 336 may be first contacted with the cylindrical member 250 and the oxidation of the metallic workpiece may be prevented.
- the cylindrical member 250 is preferably formed in a sheet made from titanium or titanium allow and is first oxidized by the residual oxygen in the space 336 to prevent from the metallic workpiece to oxidation. Accordingly, the quality of the sintered workpiece may be improved.
Abstract
A sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part;
wherein the tray part and base part are integrally formed; wherein the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and wherein the lower end of the sinter chamber is disposed on the lowered and stepped surface of the base part and the stepped portion formed in the middle of the side wall of the sintering chamber is supported by the upper end of the side wall of the tray for allowing the gas to flow.
Description
- The present application claims priority to Korean Patent Application No. 10-2016-0005990 filed Jan, 18, 2016, the entirety of the disclosure of which is expressly incorporated herein by reference.
- Not Applicable
- The present invention relates to a sintering device, and more particularly to a sintering device comprising a cylindrical member formed of titanium or titanium alloy to restrain oxidation of metallic workpieces to be sintered in the sintering device. Furthermore, the present invention relates to a sintering device in which a tray may be arranged on a base plate in a chamber member in a gas-tight manner without using any separate cover.
- A conventional sintering device of the above-mentioned type comprises a base part, a tray placed on the base part, a cover for covering the tray accommodating the sinter product and a tray chamber surrounding the tray and support plate.
- As one example of such sintering device, U.S. patent application Publication No. 2013/0149186 discloses a structure that a tray is disposed on a base plate with a space each other for flowing a gas.
- U.S. patent application Publication No. 2014/0299195 discloses a sintering device wherein a sintering material compartment member is placed on a base part and a cover is arranged in the sintering material compartment member.
- Also, the present applicant has suggested a sintering device in Korean Patent Application No. 10-2015-0021470 filed on Feb. 12, 2015, which is incorporated herein for reference. As depicted in
FIGS. 1 and 2 , the sinter device comprises atray 20 placed on thebase plate 10, acover member 30 for covering the tray and base plate. Thecover member 30 includes a lower end engaged with a stepped portion of thebase plate 10 and a middle steppedportion 32 supported on theupper end 23 of thetray 20. Arecessed portion 12 is formed at the edge of thebase plate 10 for engaging thelower end 31 of thecover member 30. A hole for gas inflow and outflow is formed in the center portion of the base plate. Thetray 20 is sealed by thebase plate 10 andcover member 30. Thetray 20 includes a gas flow passage which comprises a ring-shaped protrusion 21 formed at the bottom surface and recesses 22 in the ring-shaped protrusion 21. Thetray 20 is separated from thebase plate 10 by theprotrusion 21. - However, there is a problem in the conventional sintering devices mentioned above that an oxygen in the residual gas in the cavity formed by the
cover 20 oxidize the sintering material in the cavity surrounded by thecover member 30 in the sintering process. - Furthermore, in the conventional sintering devices, a sintering chamber should be formed by a least two elements arranged on the base plate, thereby causing an increase of manufacturing costs and complexity of structure.
- In order to accomplish the above-mentioned object, according to the present invention there is provided a sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part,
- wherein the tray part and base part are integrally formed;
- wherein the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and
- wherein the lower end of the sinter chamber is disposed on the lowered and stepped surface of the base part and the stepped portion formed in the middle of the side wall of the sintering chamber is supported by the upper end of the side wall of the tray for allowing the gas to flow.
- According to the present invention, a cylindrical member for the prevention of oxidization may be disposed on the base part between the side walls of the tray part and sintering chamber to prevent the oxygen contacting the metallic workpiece.
- The cylindrical member for the prevention of oxidization is preferably formed in a sheet made from titanium or titanium allow.
- The inner diameter of the sidewall of the sintering chamber is bigger than the outer diameter of the side wall of the tray part to form a cylindrical space as a gas flow passage between the side walls of the tray part and sintering chamber, and the cylindrical space is communicated with the through holes in horizontal and longitudinal directions formed at the base part.
- The above objects, other features and advantages of the present invention will become more apparent by describing the preferred embodiments thereof with reference to the accompanying drawings, in which:
-
FIG. 1 is a cross-section view of the conventional exploded sintering device in an exploded state which was filed by the present applicant; -
FIG. 2 is a cross-section view of the assembled sintering device inFIG. 1 ; -
FIG. 3 is an exploded perspective view showing the improved sintering device according to the preferred embodiment of the present invention, in which a tray part and a base part are integrally formed; -
FIG. 4 is a partial cross section view of the sintering device inFIG. 3 ; -
FIG. 5 is a cross section view of the assembled sintering device inFIG. 4 ; and -
FIG. 6 is a cross section view of the variant embodiment ofFIG. 5 . - The present invention will be hereafter described in detail with reference to the accompanying drawings.
- The sintering device according to the first embodiment of the present invention
FIGS. 3, 4, 5 includes a tray comprising atray part 330 and abase part 331 integrally formed therewith and asintering chamber 340 covering thetray part 330, the upper portion of thetray part 330 being opened. That is, the tray part and the base part are different from a tray and a base plate in theFIGS. 1 and 2 in that the tray part and base part are integrally formed in one piece. - The
tray part 330 is provided with acylindrical side wall 332 formed upwardly on the bottom surface to form an inner space for accommodating workpieces therein and thebase part 331 is formed with throughholes 334 in horizontal and longitudinal directions for gas inflowing and discharging, and ahole 335 at crossover point of the throughholes 334 for penetrating the center portion of the base plate and extended to the exterior. Also, a lowered and steppedsurface 333 is formed at the edge portion of thebase part 331. - The through
holes 334 work as a gas passage for inflowing the argon gas and discharging the residual gas in the inner space of the tray part and thehole 335 works as an gas inlet and an gas outlet connected to the gas supply and discharging means provided in the conventional sintering device. - The
sintering chamber 340 is mounted on the lowered and stepped surface of the base part for covering thetray part 330 and is provided with acylindrical side wall 342 formed in the downward direction and astepped portion 341 in the middle of the side wall to increase the inner diameter at the lower portion of the side wall. - When the
sintering chamber 340 is mounted for covering thetray part 330, the lower end of theside wall 342 seats on thestepped surface 333 of the base part and thestepped portion 341 of theside wall 342 seats on the upper end of the side wall of thetray part 330, so that gas may follow through a fine gap between them. - The inner diameter of the
side wall 342 of thesintering chamber 340 is bigger than that of theside wall 332 of thetray part 330, so that a ringshaped space 336 is formed as a gas passage between theside walls space 336 is connected to the horizontal and longitudinal throughholes 334 formed at the base part. - The argon gas supplied by (not shown) a gas supplying apparatus may flow into the ring
shaped space 336 between theside walls hole 335 and throughholes 334 formed at the base part and the residual gas in the inner space of the tray part may be discharged via the same gas flowing paths mentioned above. - In this embodiment, the tray part and the base part are integrate in one piece, where the
hole 335 and throughholes 334 are formed at thebase part 331 for the gas inflow and discharging and thestepped surface 333 of the base part is formed at thebase part 331 for mounting thesintering chamber 340, so that the sintering device may be compacted in virtue of the decrease of the number of parts and the manufacturing cost may be decreased. Accordingly, the sintering device according to the invention is improved as compared with the prior sintering device in which the tray and the base plate are separated, a spacer should be formed at the bottom for a space as a gas passage. - Referring to
FIG. 6 , the sintering device according to the variant embodiment of the invention includes acylindrical member 250 provided between the side wall of thetray part 330 and the side wall of thesintering chamber 340 for the prevention of oxidization. Thecylindrical member 250 has a diameter which is bigger than that of tray part and smaller than that of the sintering chamber, so that the cylinder member may be arranged on thebase part 331 and between the side walls of the tray part and sintering chamber. At this time, it is desirable that the cylinder member is separated from the side wall of thetray part 330 not to prevent the inflow and discharging of the gas. - Accordingly, the argon gas supplied by the gas supplying apparatus may be flowed in the
space 336 between theside walls hole 335 and flows in the inner space of thetray part 330, thereby urging the residual gas in the inner space of the tray part to be discharged and the argon atmosphere is formed in the inner space of the tray part. Therefore, in the sintering operation, the oxygen remained in thespace 336 may be first contacted with thecylindrical member 250 and the oxidation of the metallic workpiece may be prevented. - The
cylindrical member 250 is preferably formed in a sheet made from titanium or titanium allow and is first oxidized by the residual oxygen in thespace 336 to prevent from the metallic workpiece to oxidation. Accordingly, the quality of the sintered workpiece may be improved. - The forgoing embodiments are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of apparatuses. The description of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (4)
1. A sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part;
wherein the tray part and base part are integrally formed;
wherein the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and
wherein the lower end of the sinter chamber is disposed on the lowered and stepped surface of the base part and the stepped portion formed in the middle of the side wall of the sintering chamber is supported by the upper end of the side wall of the tray for allowing the gas to flow.
2. The sintering device as claimed in claim 1 , wherein a cylindrical member for the prevention of oxidization is disposed on the base part between the side walls of the tray part and sintering chamber to prevent the oxygen contacting the metallic workpiece.
3. The sintering device as claimed in claim 2 , wherein the cylindrical member is formed in a sheet made from titanium or titanium allow.
4. The sintering device as claimed in claim 1 , wherein the inner diameter of the sidewall of the sintering chamber is bigger than the outer diameter of the side wall of the tray part to form a cylindrical space as a gas flow passage between the side walls of the tray part and sintering chamber, and the cylindrical space is communicated with the through holes in horizontal and longitudinal directions formed at the base part.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20150140977 | 2015-10-07 | ||
KR1020160005990A KR20170041604A (en) | 2015-10-07 | 2016-01-18 | Sintering device |
KR10-2016-0005990 | 2016-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170203362A1 true US20170203362A1 (en) | 2017-07-20 |
Family
ID=58703246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/158,986 Abandoned US20170203362A1 (en) | 2015-10-07 | 2016-05-19 | Sintering device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20170203362A1 (en) |
KR (1) | KR20170041604A (en) |
DE (1) | DE102016112873A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10322453B2 (en) * | 2013-04-18 | 2019-06-18 | Amann Girrbach Ag | Sintering apparatus |
CN111215623A (en) * | 2020-03-02 | 2020-06-02 | 北京理工大学 | Powder metallurgy densification pressureless sintering method of Ti-Al alloy |
US10967430B2 (en) * | 2015-07-06 | 2021-04-06 | Safran Aircraft Engines | Method for heat treating a preform made of titanium alloy powder |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011056211B3 (en) | 2011-12-09 | 2013-02-07 | Degudent Gmbh | Method and apparatus for sintering sintered material |
DE102012100632A1 (en) | 2012-01-25 | 2013-07-25 | Amann Girrbach Ag | sintering apparatus |
JP5667674B1 (en) | 2013-08-20 | 2015-02-12 | サーモス株式会社 | Cleaning device for cleaning metal containers |
-
2016
- 2016-01-18 KR KR1020160005990A patent/KR20170041604A/en not_active Application Discontinuation
- 2016-05-19 US US15/158,986 patent/US20170203362A1/en not_active Abandoned
- 2016-07-13 DE DE102016112873.2A patent/DE102016112873A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10322453B2 (en) * | 2013-04-18 | 2019-06-18 | Amann Girrbach Ag | Sintering apparatus |
US10967430B2 (en) * | 2015-07-06 | 2021-04-06 | Safran Aircraft Engines | Method for heat treating a preform made of titanium alloy powder |
US11440095B2 (en) | 2015-07-06 | 2022-09-13 | Safran Aircraft Engines | Method for heat treating a preform made of titanium alloy powder |
CN111215623A (en) * | 2020-03-02 | 2020-06-02 | 北京理工大学 | Powder metallurgy densification pressureless sintering method of Ti-Al alloy |
Also Published As
Publication number | Publication date |
---|---|
DE102016112873A1 (en) | 2017-07-20 |
KR20170041604A (en) | 2017-04-17 |
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Legal Events
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