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公开(公告)号：US2380284A
公开(公告)日：1945-07-10
申请号：US46970342
申请日：1942-12-21
Applicant: DU PONT
Inventor： YOUNG JAMES H
IPC: C23G1/28
CPC classification number: C23G1/28
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公开(公告)号：US1714879A
公开(公告)日：1929-05-28
申请号：US71448224
申请日：1924-05-19
Applicant: LANG HARRY O
Inventor： LANG HARRY O
IPC: C23G1/28
CPC classification number: C23G1/28
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公开(公告)号：US20180033506A1
公开(公告)日：2018-02-01
申请号：US15548199
申请日：2015-02-05
Applicant: Areva GmbH
Inventor： Luis Sempere-Belda , Christian Guenther Topf
CPC classification number: G21F9/004 , C23G1/02 , C23G1/28 , G21C17/0225 , G21C19/28 , G21F9/001 , G21F9/12 , G21F9/28 , G21F9/30
Abstract: A method of decontaminating metal surfaces in a cooling system of a nuclear reactor comprises conducting a plurality of treatment cycles, with each of the treatment cycles comprising: an oxidation step wherein metal oxides including radioisotopes on the metal surfaces are contacted with an aqueous solution of a permanganate oxidant; a decontamination step after the oxidation step wherein the metal oxides are contacted with an aqueous solution of an organic acid selected from the group consisting of oxalic acid, formic acid, citric acid, tartaric acid, picolinic acid, gluconic acid, glyoxylic acid and mixtures thereof so as to dissolve at least part of the metal oxides and the radioisotopes; and a cleaning step wherein at least the radioisotopes are immobilized on an ion exchange resin; wherein the oxidation step comprises at least one acidic oxidation step and at least one alkaline oxidation step carried out one after another in either the same or different treatment cycles; and wherein the plurality of treatment cycles comprises at least one treatment cycle including a high temperature oxidation step, wherein the permanganate oxidant solution is kept at a temperature of at least 100° C. and, wherein the at least one reactor coolant pump is used to circulate and heat the oxidation solution inside the primary loop, and the residual heat removal system is used to control the temperature of the oxidant solution during the high temperature oxidation step.
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公开(公告)号：US07303112B2
公开(公告)日：2007-12-04
申请号：US10977853
申请日：2004-10-29
Applicant: Steven Ivory , Jose A. Echevarria , Gary M. Lomasney , David R. Malley , Kevin C. McMahon , James J. Moor , Joseph Rokicki
Inventor： Steven Ivory , Jose A. Echevarria , Gary M. Lomasney , David R. Malley , Kevin C. McMahon , James J. Moor , Joseph Rokicki
CPC classification number: F01D5/005 , B23K1/0018 , B23K1/018 , B23K1/206 , B23K2101/001 , B23P6/002 , B23P6/007 , C11D7/06 , C11D7/08 , C11D7/105 , C11D11/0041 , C23F1/28 , C23G1/08 , C23G1/085 , C23G1/086 , C23G1/28 , C23G1/32 , F05D2230/237 , Y10T29/49318
Abstract: A method of repairing a braze joint and the resulting joint includes removing an unsuitable portion of a first joining material in a joint between a first member and a second member of an aerospace assembly and cleaning the joint. A stripping solution is used to remove the unsuitable portion of the first joining material. A first cleaning solution is used to clean the joint, and the joint is further cleaned using a second cleaning solution. During a rebrazing step, a second joining material moves into a void left by the removed unsuitable portion from the removal step to form a new joint between the first member and the second member that includes the remaining first joining material and the second joining material.
Abstract translation: 修复钎焊接头和所得到的接头的方法包括去除在航空航天组件的第一构件和第二构件之间的接头中的第一接合材料的不适当部分并清洁接头。 剥离溶液用于去除第一接合材料的不合适部分。 使用第一清洁溶液来清洁接头，并且使用第二清洁溶液进一步清洁接头。 在重新启动步骤期间，第二接合材料由移除的不适合部分移动到留下的空隙中，以在第一构件和第二构件之间形成包括剩余的第一接合材料和第二接合材料的新接头。
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公开(公告)号：US5505786A
公开(公告)日：1996-04-09
申请号：US331709
申请日：1994-10-31
Applicant: John M. Cole , Charles M. Bessey
Inventor： John M. Cole , Charles M. Bessey
CPC classification number: C23G3/023 , C23G1/28 , Y10T29/4539 , Y10T29/4544
Abstract: A system for descaling a strip of metal includes a nozzle assembly mounted within a spray box for spraying descaling product on the strip. The nozzle assembly includes a spray chamber; nozzles mounted directly to the spray chamber; and a heater for heating the chamber, the descaling product in the chamber, and the nozzles by conduction through the chamber. The nozzles are oriented to direct the descaling product in a spray against the upper and lower surfaces of the metal strip for an amount and a time sufficient to descale the metal strip. The nozzle assembly is attached to the spray box and can be easily removed therefrom for inspection.
Abstract translation: 用于除锈金属条的系统包括安装在喷雾箱内用于在条带上喷雾除垢产品的喷嘴组件。 喷嘴组件包括喷雾室; 直接安装在喷雾室的喷嘴; 以及用于加热室的加热器，室中的除垢产品，以及通过室的传导的喷嘴。 这些喷嘴被定向成以相对于金属条的上表面和下表面的喷雾方式将除垢产品引导到足以除去金属条的量和时间。 喷嘴组件附接到喷雾箱，并且可以容易地从喷嘴组件中取出以供检查。
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Patent Agency Ranking
公开(公告)号：US5361788A
公开(公告)日：1994-11-08
申请号：US119496
申请日：1993-09-10
Applicant: John M. Cole , Charles M. Bessey
Inventor： John M. Cole , Charles M. Bessey
CPC classification number: C23G3/023 , C23G1/28 , Y10T29/4539 , Y10T29/4544
Abstract: A system for descaling a strip of metal includes a nozzle assembly mounted within a spray box for spraying descaling product on the strip. The nozzle assembly includes a spray chamber; nozzles mounted directly to the spray chamber; and a heater for heating the chamber, the descaling product in the chamber, and the nozzles by conduction through the chamber. The nozzles are oriented to direct the descaling product in a spray against the upper and lower surfaces of the metal strip for an amount and a time sufficient to descale the metal strip. The nozzle assembly is attached to the spray box and can be easily removed therefrom for inspection.
Abstract translation: 用于除锈金属条的系统包括安装在喷雾箱内用于在条带上喷雾除垢产品的喷嘴组件。 喷嘴组件包括喷雾室; 直接安装在喷雾室的喷嘴; 以及用于加热室的加热器，室中的除垢产品，以及通过室的传导的喷嘴。 这些喷嘴被定向成以相对于金属条的上表面和下表面的喷雾方式将除垢产品引导到足以除去金属条的量和时间。 喷嘴组件附接到喷雾箱，并且可以容易地从喷嘴组件中取出以供检查。
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公开(公告)号：US4441930A
公开(公告)日：1984-04-10
申请号：US217094
申请日：1980-12-16
Applicant: Ulrich Baudis , Peter Biberbach , Wolfgang Weber
Inventor： Ulrich Baudis , Peter Biberbach , Wolfgang Weber
CPC classification number: B22D31/002 , B22D29/002 , C23G1/28
Abstract: For removing and dissolving sand mold residues from cast parts, particularly sand mold residues containing zirconium oxide and titanium oxide, there have previously been used mechanical and electrochemical processes in salt melts. However, these processes are very expensive, attack the surface of the cast pieces or fail to work with sand mold constituents which are difficult to dissolve. These disadvantages are avoided by inserting the cast parts having adhering sand mold residues into a melt of 55 to 97 weight % of alkali metal hydroxide and 3 to 45 weight % of one or more fluorides of an element of the first to third main group of the periodic system of elements and/or zinc at 400.degree. to 900.degree. C. Preferably the salt melt additionally contains a boron-oxygen and/or a boron-fluorine compound.
Abstract translation: 为了从铸件中除去和溶解砂模残渣，特别是含有氧化锆和氧化钛的砂模残渣，以前已经在盐熔体中使用机械和电化学方法。 然而，这些方法非常昂贵，侵蚀铸件的表面或者不能与难以溶解的砂模成分一起使用。 通过将具有粘附的砂模残余物的铸造件插入55至97重量％的碱金属氢氧化物和3至45重量％的第一至第三主要元素的一种或多种氟化物的熔体中来避免这些缺点 在400〜900℃下元素和/或锌的周期性体系。优选地，盐熔体还含有硼 - 氧和/或硼 - 氟化合物。
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公开(公告)号：US4113511A
公开(公告)日：1978-09-12
申请号：US759763
申请日：1977-01-17
Applicant: Robert H. Shoemaker , William G. Wood
Inventor： Robert H. Shoemaker , William G. Wood
CPC classification number: C23G1/28 , Y10S203/11 , Y10S423/12
Abstract: A method and apparatus is disclosed where aqueous solutions of chemicals are added to fused non-aqueous baths. This is done by spraying the aqueous solution of the chemicals onto the surface of the fused bath in a fine spray, causing the evaporation of the water.
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公开(公告)号：US4026777A
公开(公告)日：1977-05-31
申请号：US672586
申请日：1976-04-01
Applicant: Donald R. Zaremski , Albert Krepler
Inventor： Donald R. Zaremski , Albert Krepler
Abstract: A process for descaling a metallic body, wherein the body is immersed in a bath of a molten oxidizing salt, and subsequently in an electrolyte of an aqueous solution of at least one neutral salt from the group consisting of the chloride, sulfate and nitrate of an alkali metal or ammonium.
Abstract translation: 一种对金属体进行除垢的方法，其中将本体浸入熔融氧化盐的浴中，随后在至少一种中性盐的水溶液的电解质中由氯化物，硫酸盐和硝酸盐组成的组中除去 碱金属或铵。
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公开(公告)号：US3951681A
公开(公告)日：1976-04-20
申请号：US411993
申请日：1973-11-01
Applicant: Robert H. Shoemaker , William G. Wood
Inventor： Robert H. Shoemaker , William G. Wood
CPC classification number: C23G1/28
Abstract: A ferrous metal product to be cleaned is immersed in an oxidizing molten salt bath forming a conditioned scale on the surface of the metal. The conditioned scale is subsequently removed from the metal surface by immersing the metal product in an aqueous caustic bath containing alkali metal hydroxide with alkali gluconate and triethanolamine serving as sequestering agents. The caustic bath may optionally include a brightening catalyst or ethylenediamine-tetracetic acid.
Abstract translation: 将待清洗的黑色金属产品浸入在金属表面上形成调理垢的氧化熔融盐浴中。 随后通过将金属产物浸入含有碱金属氢氧化物的碱性金属氢氧化物与碱金属葡萄糖酸盐和三乙醇胺作为隔离剂，从而从金属表面除去调理垢。 苛性碱可以任选地包括增亮催化剂或乙二胺四乙酸。
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