JPS6491094A - Sintering furnace for oxide nuclear fuel assembly - Google Patents

Sintering furnace for oxide nuclear fuel assembly

Info

Publication number
JPS6491094A
JPS6491094A JP62248798A JP24879887A JPS6491094A JP S6491094 A JPS6491094 A JP S6491094A JP 62248798 A JP62248798 A JP 62248798A JP 24879887 A JP24879887 A JP 24879887A JP S6491094 A JPS6491094 A JP S6491094A
Authority
JP
Japan
Prior art keywords
gas
zone
heated
curtain
preheating
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.)
Granted
Application number
JP62248798A
Other languages
Japanese (ja)
Other versions
JPH0636065B2 (en
Inventor
Kazutoshi Tokai
Yutaka Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuclear Fuel Industries Ltd
Original Assignee
Nuclear Fuel Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nuclear Fuel Industries Ltd filed Critical Nuclear Fuel Industries Ltd
Priority to JP62248798A priority Critical patent/JPH0636065B2/en
Publication of JPS6491094A publication Critical patent/JPS6491094A/en
Publication of JPH0636065B2 publication Critical patent/JPH0636065B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

PURPOSE:To adjust a distribution of crystal particle sizes, by attaching a preheating zone for low-temperature oxidizing conditions in front of a thermally sintering zone by way of a gas curtain with an N2 or CO2 gas as purge gas. CONSTITUTION:A sintering furnace not only includes an area 3 interposed between a thermally sintering zone 1 and a reducing zone 2 in an oxidizing atmosphere to let N2 flow in a curtain as traditionally but also is provided with a preheating zone 4 for low-temperature oxidizing conditions in front of the thermally sintering zone 1 in the oxidizing atmosphere through a curtain section 5 adapted to let an N2 or CO2 gas flow as purge gas. Then, first, a molded body is heated for 1-6hr in the air at 150-340 deg.C as preheating to disperse the concentration of oxygen therein properly and then, heated for 1-3hr in CO2 at 1,000-1,400 deg.C and moreover, heated in a hydrogen gas containing water wave vapor or an ammonia decomposition gas (H2, N2) at the same temperature. Thus, a crystal particle distribution in a sintered body is adjusted by regulating the existence ratio of V4O9 in the molded body.
JP62248798A 1987-10-01 1987-10-01 Sintering furnace for oxide nuclear fuel Expired - Lifetime JPH0636065B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62248798A JPH0636065B2 (en) 1987-10-01 1987-10-01 Sintering furnace for oxide nuclear fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62248798A JPH0636065B2 (en) 1987-10-01 1987-10-01 Sintering furnace for oxide nuclear fuel

Publications (2)

Publication Number Publication Date
JPS6491094A true JPS6491094A (en) 1989-04-10
JPH0636065B2 JPH0636065B2 (en) 1994-05-11

Family

ID=17183555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62248798A Expired - Lifetime JPH0636065B2 (en) 1987-10-01 1987-10-01 Sintering furnace for oxide nuclear fuel

Country Status (1)

Country Link
JP (1) JPH0636065B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449016U (en) * 1990-06-23 1992-04-24
JPH0449015U (en) * 1990-06-23 1992-04-24
JPH04166800A (en) * 1990-10-29 1992-06-12 Nuclear Fuel Ind Ltd Fabrication method for sintered nuclear fuel and its sintering furnace
JP2012088317A (en) * 2010-10-20 2012-05-10 Korea Atomic Energy Research Inst Solid solution concentration adjustment method for crystal grain boundary and periphery of crystal grain boundary of heterogeneous additive element, and method of manufacturing nuclear fuel sintered body having large crystal grain using the same
JP2015534087A (en) * 2012-11-08 2015-11-26 コミサリヤ・ア・レネルジ・アトミク・エ・オ・エネルジ・アルテルナテイブ Oxide nuclear fuel as a regulator of corrosive fission products with at least one redox system added
JP2016503903A (en) * 2013-01-18 2016-02-08 ウエスチングハウス・エレクトリック・カンパニー・エルエルシー Laser sintering system and method for remotely producing high density pellets containing highly radioactive elements

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449016U (en) * 1990-06-23 1992-04-24
JPH0449015U (en) * 1990-06-23 1992-04-24
JPH04166800A (en) * 1990-10-29 1992-06-12 Nuclear Fuel Ind Ltd Fabrication method for sintered nuclear fuel and its sintering furnace
JP2012088317A (en) * 2010-10-20 2012-05-10 Korea Atomic Energy Research Inst Solid solution concentration adjustment method for crystal grain boundary and periphery of crystal grain boundary of heterogeneous additive element, and method of manufacturing nuclear fuel sintered body having large crystal grain using the same
US9190179B2 (en) 2010-10-20 2015-11-17 Korea Atomic Energy Research Institute Method of controlling solubility of additives at and near grain boundaries, and method of manufacturing sintered nuclear fuel pellet having large grain size using the same
JP2015534087A (en) * 2012-11-08 2015-11-26 コミサリヤ・ア・レネルジ・アトミク・エ・オ・エネルジ・アルテルナテイブ Oxide nuclear fuel as a regulator of corrosive fission products with at least one redox system added
JP2016503903A (en) * 2013-01-18 2016-02-08 ウエスチングハウス・エレクトリック・カンパニー・エルエルシー Laser sintering system and method for remotely producing high density pellets containing highly radioactive elements

Also Published As

Publication number Publication date
JPH0636065B2 (en) 1994-05-11

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