专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1998024945A1 CATHODE PULVERISATION TARGETS IN ALUMINIUM ALLOY 审中-公开
标题翻译：铝合金中的CATHODE PULVERISATION TARGETS
公开(公告)号：WO1998024945A1
公开(公告)日：1998-06-11
申请号：PCT/FR1997002142
申请日：1997-11-27
申请人： ALUMINIUM PECHINEY , LEROY, Michel , MULLER, Jean , CHENAL, Bruno
发明人： ALUMINIUM PECHINEY
IPC分类号： C23C14/34
CPC分类号： C23C14/3414 , C22C21/00
摘要： The invention concerns a cathode pulverisation target characterised in that its active part, i.e. the volume of the target capable of being removed during the cathode pulverisation, consists of a high purity aluminium alloy simultaneously containing copper and iron and having simultaneously a recrystallisation temperature well above 20 DEG C and an electric resistivity less than 2.85 mu OMEGA .cm at 20 DEG C. The use of the target for making bonding circuits reduces the frequency at which voids and hillocks appear, while maintaining the resistance of the bonding circuits at values comparable to the resistance obtained with a high purity aluminium alloy, while also providing the etching characteristics comparable to those of high purity aluminium alloy.
摘要翻译：本发明涉及一种阴极粉碎靶，其特征在于其活性部分，即在阴极粉碎过程中能够除去的靶的体积由同时含有铜和铁的高纯度铝合金组成，同时具有高于20的再结晶温度 ℃，电阻率在20℃时小于2.85微米OMEGA·cm。使用目标物进行接合电路可以降低出现空隙和小丘的频率，同时保持接合电路的电阻值与由高纯度铝合金获得的电阻，同时还提供与高纯度铝合金相当的蚀刻特性。

2. 发明申请

WO1995003434A1 ELECTROREFINED ALUMINIUM WITH LOW URANIUM, THORIUM AND RARE EARTH CONTENT 审中-公开
标题翻译：具有低铀，钍和稀土含量的电化铝
公开(公告)号：WO1995003434A1
公开(公告)日：1995-02-02
申请号：PCT/FR1994000862
申请日：1994-07-11
申请人： ALUMINIUM PECHINEY , LEROY, Michel
发明人： ALUMINIUM PECHINEY
IPC分类号： C22C21/00
CPC分类号： C25C3/24 , C22B7/004 , Y02P10/212
摘要： Aluminium with a purety exceeding 99.998 %, produced by electrolytic refining, such as obtained at the outlet of the refining tank without subsequent processing, its rare earth content being less than 100 ppb and its total uranium and thorium content being less than 20 ppb. The invention also concerns a cost-reducing method for the manufacture of said aluminium. The high purity aluminium according to the invention is chiefly used in the metallization of electronic circuits.
摘要翻译：纯度超过99.998％的铝，通过电解精炼生产，如在精炼罐出口处获得，无需后续处理，其稀土含量小于100ppb，其总铀和钍总含量小于20ppb。本发明还涉及用于制造所述铝的成本降低方法。本发明的高纯度铝主要用于电子电路的金属化。

3. 发明申请

WO1984004547A1 CATHODE BAR COMPRISING A METAL SOLE FOR HALL-HEROULT ELECTROLYSIS TANKS 审中-公开
标题翻译：用于HALL-HEROULT电解槽的金属盖的阴极棒
公开(公告)号：WO1984004547A1
公开(公告)日：1984-11-22
申请号：PCT/FR1984000129
申请日：1984-05-14
申请人： ALUMINIUM PECHINEY , LEROY, Michel
发明人： ALUMINIUM PECHINEY
IPC分类号： C25C03/16
CPC分类号： C25C3/16
摘要： Cathode bar provided for the extraction of current from a tank intended to the electrolysis production of aluminium according to the Hall-Héroult method, sealed in at least one groove opened at the base of each carbonated blocks (1) forming the cathode of the electrolysis tank. According to the invention, the cathode bar (2) is extended by a metal sole (5) in electric contact with the base of the carbonated blocks (1) on at least 20% of the total surface of said base. The sole (5) is comprised of metal sheet having a thickness of at least 4 mm and preferably at least equal to 10 mm welded to the cathode bar (2) before setting in place the carbonated block (1) in the tank. To prevent electrolyte infiltrations in the under-cathode space, the lower face of the sole (5) is arranged in superposed relationship and in electric contact with a continuous thick metal screen (26) arranged to the upper part of the heat-insulating lining.
摘要翻译：阴极棒用于根据Hall-Héroult方法从用于电解生产铝的罐中提取电流，密封在形成电解槽的阴极的每个碳酸化块（1）的底部开口的至少一个槽中。根据本发明，阴极棒（2）在与所述基底的总表面的至少20％之间与碳化块（1）的基部电接触的金属底座（5）延伸。在将碳酸化块（1）置于罐中之前，鞋底（5）由厚度至少为4mm，优选至少等于10mm的金属板组成，焊接到阴极棒（2）。为了防止阴极空间中的电解质渗入，鞋底（5）的下表面以叠置的关系布置，并与布置在绝热衬里的上部的连续的厚金属网（26）电接触。

4. 发明申请

WO1998005411A1 NON-POLLUTING METHOD FOR REGENERATING CERAMIC PARTS USED IN ALUMINIUM CASTING 审中-公开
标题翻译：用于再生铝铸件中使用的陶瓷部件的非抛光方法
公开(公告)号：WO1998005411A1
公开(公告)日：1998-02-12
申请号：PCT/FR1997001366
申请日：1997-07-23
申请人： ALUMINIUM PECHINEY , LEROY, Michel , BALUAIS, Gérard , RAIGNAULT, Isabelle
发明人： ALUMINIUM PECHINEY
IPC分类号： B01D41/02
CPC分类号： C04B41/009 , B09B3/00 , C04B41/5353 , C04B41/91 , C04B2111/00879 , C22B21/066 , C04B41/0072 , C04B35/10
摘要： A method for regenerating ceramic parts used in aluminium casting, to enable low-cost removal of the surface build-up of materials while conferring properties to said parts that are equivalent to those of new parts. The method is particularly useful for the ceramic parts of bed filters containing sintered alumina. The method combines a chemical attack with a heat treatment. The chemical attack is used to dissolve the aluminium in metal or oxide form and remove insoluble inclusions retained in the parts, without actually chemically attacking the parts. The heat treatment is carried out at a temperature higher than 300 DEG C and enables the original properties of the treated parts to be completely restored.
摘要翻译：一种用于再生铝铸件中使用的陶瓷部件的方法，以便能够低成本地去除材料的表面积累，同时赋予与所述部件相当的部件的性能。该方法对于含有烧结氧化铝的床过滤器的陶瓷部件特别有用。该方法结合了化学侵蚀与热处理。化学侵蚀用于将铝溶解成金属或氧化物形式，并除去保留在部件中的不溶性夹杂物，而不实际化学侵蚀部件。热处理在高于300℃的温度下进行，能够完全恢复处理部件的原有性能。

5. 发明申请

WO1997033011A1 METHOD FOR MAKING SPUTTERING TARGETS FROM AN ALUMINIUM ALLOY 审中-公开
标题翻译：从铝合金制造溅射靶的方法
公开(公告)号：WO1997033011A1
公开(公告)日：1997-09-12
申请号：PCT/FR1997000363
申请日：1997-02-28
申请人： ALUMINIUM PECHINEY , LEROY, Michel
发明人： ALUMINIUM PECHINEY
IPC分类号： C22F01/02
CPC分类号： C22F1/02 , C22F1/04 , C23C14/3414
摘要： A method wherein an optionally partially worked rough blank casting is provided then (1) the oxide layer on the castings is removed and means are implemented to prevent it being reformed, (2) a heat treatment is carried out in a furnace containing a non-oxidising atmosphere in order to homogenise and redissolve precipitates comprising alloying elements present in the aluminium matrix, (3) the homogenising heat treatment is continued under conditions enabling most of the hydrogen in the castings to be extracted until the hydrogen content is reduced to less than 0.05 ppm and preferably less than 0.03 ppm, and (4) said castings are worked in such a way that the thickness or cross-section thereof is reduced by at least 10 %, under such conditions that any residual pores remaining after the precipitates have been redissolved and the gas removed may be filled. Said method advantageously includes a further step (5) of selecting worked castings by means of a non-destructive testing method whereby residual flaws with a size exceeding a predetermined threshold may be detected, the flaw density may be determined and castings having a flaw density higher than a predetermined threshold may be discarded.
摘要翻译：一种方法，其中提供任选地部分加工的粗坯铸件，然后（1）除去铸件上的氧化物层，实施防止其重整的装置，（2）在包含非铸造的炉中进行热处理，氧化气氛以使包含铝基体中存在的合金元素的沉淀物均化并再溶解，（3）均匀化热处理在允许铸件中大部分氢被萃取直至氢含量降至小于0.05的条件下继续进行均化热处理 ppm，优选小于0.03ppm，和（4）所述铸件的工作方式使得其厚度或横截面减小至少10％，在沉淀物再残余后残留的孔隙并且可以填充除去的气体。所述方法有利地包括另外的步骤（5），其通过非破坏性测试方法选择加工的铸件，由此可以检测到尺寸超过预定阈值的残余瑕疵，可以确定瑕疵密度并且具有更高的瑕疵密度的铸件可以丢弃预定阈值。

6. 发明申请

WO1998023551A1 METHOD FOR THE INSOLUBILISATION AND CONSOLIDATION OF USED BRASQUES FROM HALL-HEROULT ELECTROLYTE VESSELS 审中-公开
标题翻译：从HALL-HEROULT电解槽中分离和合并使用的方法
公开(公告)号：WO1998023551A1
公开(公告)日：1998-06-04
申请号：PCT/FR1997002123
申请日：1997-11-25
申请人： ALUMINIUM PECHINEY
发明人： ALUMINIUM PECHINEY , PERSONNET, Pierre , BOUZAT, Gilbert
IPC分类号： C04B18/02
CPC分类号： A62D3/33 , A62D2101/40 , A62D2101/45 , A62D2101/49 , C04B18/023 , Y02W30/91 , C04B14/106 , C04B18/021 , C04B18/0481
摘要： The invention concerns a method for the insolubilisation and consolidation in the form of pellets of used brasques from electrolyte vessels for producing aluminium comprising the grinding of said brasques and mixing them closely with various refractory pulverulent additives before burning characterised in that it consists in: introducing a first additive selected from the group of aluminium silicates for fixing the alkaline metals during burning; introducing a second additive which, during burning, will combine with the saturating fluorine-containing compounds to form new stable and insoluble compounds and by its non-combined supernatant fraction, will ensure the consolidation of the mixture, and this additive is selected from the group of calcium oxides and salts and preferably of lime cements and mortars; carrying out a forming by agglomerating in the form of pellets the close mixture of used ground brasques with said first and second pulverulent additives before burning at a temperature between 700 DEG C and 950 DEG C.
摘要翻译：本发明涉及一种用于生产铝的电解质容器用的使用的手套颗粒形式的不溶化和固结的方法，包括研磨所述的手套并将它们与各种耐火粉状添加剂紧密地混合在一起，其特征在于它包括：引入第一添加剂，选自硅酸铝硅酸盐，用于在燃烧期间固定碱金属; 引入第二种添加剂，其在燃烧期间将与饱和的含氟化合物结合形成新的稳定和不溶性化合物，并通过其非组合的上清液部分将确保混合物的固结，并且该添加剂选自的氧化钙和盐，最好是石灰水泥和砂浆; 在700至950℃的温度下燃烧之前，以颗粒形式将所使用的研磨布的紧密混合物与所述第一和第二粉状添加剂一起进行成形。

7. 发明申请

WO1998019967A1 MANUFACTURE OF CALCINED ALUMINA WITH CRYSTALLITE SIZE ADJUSTED ON REQUEST WITH LOW DISPERSION 审中-公开
标题翻译：具有低分散性要求调整的结晶尺寸的计算氧化铝的制造
公开(公告)号：WO1998019967A1
公开(公告)日：1998-05-14
申请号：PCT/FR1997001966
申请日：1997-11-03
申请人： ALUMINIUM PECHINEY
发明人： ALUMINIUM PECHINEY , DEVILLE, Jean , LAMERANT, Jean-Michel
IPC分类号： C01F07/44
CPC分类号： C01F7/442 , C01P2004/50 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C04B35/111
摘要： The invention concerns a method for manufacturing alumina for ceramics by calcination of alumina trihydrate in the presence of a mineralising agent such as a halogenated compound and/or a boron compound, said calcined alumina being constituted of friable conglomerates of elemental particles or alpha alumina crystallite the size of which is adjusted on request with a confined unimodal distribution of the crystallite size. The invention is characterised in that the calcination in industrial furnace, in renewed oxidising atmosphere, of the alumina trihydrate filler at a temperature between 800 DEG C and 1300 DEG C for half an hour to four hours is carried out simultaneously in the presence of a halogenated compound acting as mineralising agent and a recrystallisation modifier of alumina, with a silica base, evenly and closely distributed in the alumina trihydrate filler.
摘要翻译：本发明涉及通过在矿化剂如卤代化合物和/或硼化合物的存在下煅烧三水合氧化铝来制造陶瓷氧化铝的方法，所述煅烧氧化铝由易碎的元素颗粒或α氧化铝微晶构成，其尺寸根据要求进行调整，具有微晶尺寸的限制单峰分布。本发明的特征在于，在800℃至1300℃之间的温度下半小时至4小时的氧化铝三水合物填料的工业炉中，在再次氧化气氛中焙烧半小时至四小时，同时在卤代作为矿化剂的化合物和氧化铝的再结晶改性剂，具有二氧化硅基底，均匀且紧密地分布在三水合氧化铝填料中。

8. 发明申请

WO1997003924A1 METHOD FOR PURIFYING SODIUM ALUMINATE SOLUTIONS CONTAINING SODIUM OXALATE 审中-公开
标题翻译：纯化含有钠盐的铝酸钠溶液的方法
公开(公告)号：WO1997003924A1
公开(公告)日：1997-02-06
申请号：PCT/FR1996001104
申请日：1996-07-16
申请人： ALUMINIUM PECHINEY
发明人： ALUMINIUM PECHINEY , SOIRAT, Arnaud
IPC分类号： C01F07/47
CPC分类号： C01F7/473
摘要： A method for removing sodium oxalate from sodium aluminate solutions produced by alkaline bauxite treatment according to the Bayer process, wherein the sodium oxalate in at least one fraction of the previously decomposed sodium aluminate solution is precipitated using an agent that destabilises the supersaturated state of the sodium oxalate, i.e. a deoxalation initiator, and the oxalate, precipitated with the destabilising agent in the form of an insoluble residue is separated from the purified sodium aluminate solution which is then recycled as the treatment liquor. The destabilising agent or deoxalation initiator contacted with the sodium aluminate solution is a salt other than an oxalate, a metal oxide, a metal hydroxide or a mixture thereof, said destabilising agent remains insoluble in or chemically inert to the reaction medium, and following an optional regeneration step, said agent is recycled to the start of the process as a deoxalation initiator.
摘要翻译：一种根据拜耳法由碱性铝土矿处理产生的铝酸钠溶液中除去草酸钠的方法，其中至少一部分先前分解的铝酸钠溶液中的草酸钠使用不稳定钠的过饱和状态的试剂沉淀草酸盐，即脱氧引发剂，和与不溶性残渣形式的去稳定剂一起沉淀的草酸盐与纯化的铝酸钠溶液分离，然后将其再循环作为处理液。与铝酸钠溶液接触的去稳定剂或脱氧引发剂是草酸盐，金属氧化物，金属氢氧化物或其混合物以外的盐，所述去稳定剂对反应介质保持不溶或化学惰性，并且遵循任选的再生步骤，所述试剂作为脱氧引发剂再循环至该方法的开始。

9. 发明申请

WO1996030305A1 METHOD FOR PROCESSING TRIHYDRATE ALUMINA BAUXITE WITH A LOW REACTIVE SILICA CONTENT 审中-公开
标题翻译：具有低反应性二氧化硅含量的三水合铝氧化物的处理方法
公开(公告)号：WO1996030305A1
公开(公告)日：1996-10-03
申请号：PCT/FR1996000450
申请日：1996-03-26
申请人： ALUMINIUM PECHINEY
发明人： ALUMINIUM PECHINEY , LAMERANT, Jean-Michel
IPC分类号： C01F07/06
CPC分类号： C01F7/062 , C01F7/0606 , C01F7/47
摘要： A method for processing trihydrate alumina bauxite with a low reactive silica content by subjecting said bauxite milled at atmospheric pressure to Bayer method alkaline etching is described, being characterised in that a desilication or pre-desilication process is conducted prior to etching the milled bauxite for a period of at least 30 minutes at a temperature of not more than 108 DEG C in the presence of a spent liquor aliquot with a non critical sol Al2O3 g/l to caust Na2O g/l concentration ratio (Rp) of 0.5 to 0.7, with a concentration of caustic soda of 140 to 170 g Na2O/l, to obtain a desilicated suspension with a dry matter concentration of at least 0.7 tons per m of suspension, and in that, directly after the suspension is subjected to etching at atmospheric pressure by the remaining spent liquor with a non critical Rp of around 0.5 to 0.7 and with a caustic soda concentration set to 180 to 220 g Na2O/litre, a second desilication or post-desilication process is conducted for a period of at least 2 hours at a temperature of not more than 108 DEG C, generally of 95 to 195 DEG C, on the entire amount of suspension resulting from the etching, which then has an Rp of 1.05 to 1.17, prior to which the caustic soda concentration is adjusted by diluting to 140 to 180 g Na2O/litre.
摘要翻译：描述了通过将在大气压下研磨的所述铝土矿经过拜耳法碱蚀刻来处理具有低反应性二氧化硅含量的三水合氧化铝铝土矿的方法，其特征在于在蚀刻所述碾磨的铝土矿之前进行脱硅或预脱硅处理在不临界溶胶Al2O3 g / l的废液等分试样存在下，在不高于108℃的温度下，至少30分钟的时间至苛化Na 2 O g / l浓度比（Rp）为0.5至0.7，与浓度为140〜170g Na 2 O / l的苛性钠，得到干燥物质浓度为每m 3悬浮液至少0.7吨的脱溶液悬浮液，并且在悬浮液直接在剩余废液中的非临界Rp为约0.5至0.7，苛性钠浓度设定为180至220g Na 2 O /升的剩余废液的大气压，进行第二次脱气或脱溶后处理在不超过108℃（通常为95〜195℃）的温度下，由蚀刻产生的悬浮液的总量为至少2小时的时间，然后Rp为1.05〜1.17，之前为通过稀释至140至180g Na 2 O /升来调节苛性钠浓度。

10. 发明申请

WO1996023186A1 FIRING FURNACE WITH A REVOLVING FIRING ZONE AND A COOLED INTERNAL WALL 审中-公开
标题翻译：燃烧炉与改装的火区和冷却的内墙
公开(公告)号：WO1996023186A1
公开(公告)日：1996-08-01
申请号：PCT/FR1996000112
申请日：1996-01-23
申请人： ALUMINIUM PECHINEY , CHARMIER, François , BREME, Philippe
发明人： ALUMINIUM PECHINEY
IPC分类号： F27B13/02
CPC分类号： C04B35/52 , F27B13/02
摘要： A furnace (1) with a revolving firing zone for firing carbon-containing materials, comprising for example two parallel rows (2a, 2b) of firing chambers (3a, 3b) arranged with their own thermal insulation (17a, 17b) together or separately in a casing (8), generally made of concrete, which is cooled at least by the ventilation of its two external walls (9a, 9b). The two rows (2a, 2b) of firing chambers (3a, 3b) are separated by a single specifically cooled internal wall (10) secured to the casing bottom or floor (12). Said cooled internal wall (10) comprises a network of vertical, horizontal or other ducts or channels (16) for a liquid or gaseous coolant fluid flow, preferably consisting of two vertical members (13a, 13b) having the same width and being symmetrical in relation to the vertical axis of symmetry of the wall, said members further being secured at their lower ends (14a, 14b) to the floor (12) and held at a constant spacing "e" by vertical or horizontal spacers (15) evenly spaced apart to form vertical or horizontal channels (16) for circulating ventilation air.
摘要翻译：一种具有用于焙烧含碳材料的旋转烧制区的炉子（1），包括例如两个平行的排放室（3a，2b）的排列在其自身的隔热层（17a，17b）上的单独的（2a，2b）在通常由混凝土制成的壳体（8）中，其至少通过其两个外壁（9a，9b）的通风被冷却。发射室（3a，3b）的两排（2a，2b）由固定到壳体底部或底板（12）的单个特别冷却的内壁（10）分开。所述冷却的内壁（10）包括用于液体或气体冷却剂流体流动的垂直，水平或其它管道或通道（16）的网络，优选由具有相同宽度的两个垂直构件（13a，13b）组成，并且对称于所述构件还在其下端（14a，14b）处固定到地板（12），并且通过垂直或水平间隔件（15）以恒定间隔“e”保持均匀间隔分开形成用于循环通风空气的垂直或水平通道（16）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式