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41.发明公开System for preventing decomposition of silicon carbide articles during sintering 失效烧结期间预防碳化硅制品分解的系统
公开(公告)号：EP0239304A3
公开(公告)日：1987-12-16
申请号：EP87302281
申请日：1987-03-17
发明人： Kim, Jonathan J. , Katz, Joel D.
CPC分类号： F27B5/10 , C04B35/565 , C04B35/64 , F27B17/00 , F27B17/0016 , F27D3/12 , F27D5/005 , F27D99/0001
摘要： A system to prevent, retard or reverse the decomposition of silicon carbide articles during high temperature plasma sintering. Preferably, the system comprises sintering a silicon carbide refractory or ceramic green body in a closed sintering environment, such as a closed tube, with strategic placement of the plasma torch or torches, exhaust outlet and tube. As sintering proceeds, a silicon vapour pressure builds up within the tube, retarding the decomposition of the silicon carbide body. The plasma torch, exhaust outlet, and tubes are positioned so that buoyant convective flow is maximised to increase the heat transfer and energy efficiency. In another embodiment, a "sacrificial" source of silicon carbide is placed into the sintering furnace. The silicon carbide in the sacrificial source starts to decompose before the silicon carbide refractory or ceramic article, creating a supersaturated atmosphere of silicon vapour species in the furnace. This prevents, retards or reverses the silicon carbide decomposition reactions and thus maintains the integrity of the refractory or ceramic article being sintered. Preferably, the sacrificial source is placed in a closed sintering environment along with the silicon carbide articles being sintered.
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公开(公告)号：EP0189992A3
公开(公告)日：1987-12-09
申请号：EP86300338
申请日：1986-01-17
发明人： Amorese, Franklyn J.
IPC分类号： B01F07/16
CPC分类号： B01F7/00016 , B01F7/00041 , B01F7/001 , B01F7/00275
摘要： A separable blade agitator assembly comrpising a hollow tube drive shaft with a closed end and at least two agitator blade assemblies coated with glass on the external surfaces thereof. The glass coating on the shaft is finished machined along the section of the drive shaft to which the agitator blace assembly is to be mounted to a tolerance of ±.0004". The agitator blade assemblies are interference fitted to the machined section of the drive shaft, the abutting faces of the agitator blade assemblies being in substantial contact with each other. Each agitator blade assembly comprises a hub with an internal bore with a bore height which is no less than 1" in diameter for each 1-¾" of drive shaft diamed, the internal bore having a glass coating which is finish machined to a thickness range of .0400" to .0456" and does not vary in size more than ±,0002" in diameter from the size of any other glass coated internal hub bore of any other agitator blade assembly of the agitator assembly; and at least one blade projecting radially from the hub. Each face of a hub which abuts and comes into substantial contact with a face of another hub is within ±.0010" of being perpendicular to the axis of the internal bore; the wall thickness of each of the hubs is substantially greater than the wall thickness of the hollow tube drive shaft. The drive shaft is composed of stabilized metal and each of the hubs is composed of the same grade of metal as each of the other hubs and the coefficient of expansion and contraction of the drive shaft and e;,rh of said hubs is equivalent. The glass coating is composed of a glass material which contains at least 60% Si0 2 and at least ten additional oxides.
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43.发明公开
公开(公告)号：EP0213930A2
公开(公告)日：1987-03-11
申请号：EP86306618.9
申请日：1986-08-27
发明人： Thomas, Dwight J. , Fall, Ronald E.
IPC分类号： B01D27/06
CPC分类号： B01D29/111 , B01D29/21
摘要： A filter cartridge structure and method of manufacture wherein a cylindrical pleated filter element (14) is disposed about a perforated center tube (11) and wherein thermoplastic end caps (16,18) are formed integrally to the ends of the fitter element and center tube to seal the filter element and tube against leakage and provide a completed filter cartridge structure.
摘要翻译： 制造的过滤器滤芯结构和方法worin圆柱形的褶式过滤器元件（14）被设置成围绕穿孔中心管（11）和worin热塑性端盖（16，18）被一体地形成在过滤器元件和中心管的端部 以密封泄漏的过滤器元件和管，并提供一个完整的过滤器滤芯结构。
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公开(公告)号：EP0087693B1
公开(公告)日：1986-09-03
申请号：EP83101555.7
申请日：1983-02-18
发明人： Lopacki, John B. , Emes, Harry R.
CPC分类号： H01C1/148 , H01C1/06 , H01C17/28 , Y10T29/49098 , Y10T29/49101
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45.发明公开A sintering or reaction sintering process for ceramic or refractory materials using plasma arc gases 失效使用等离子体气体的陶瓷或耐火材料的烧结或反应烧结工艺
公开(公告)号：EP0135862A3
公开(公告)日：1986-07-16
申请号：EP84110525
申请日：1984-09-04
摘要： A process for sintering or reaction sintering ceramic or refractory materials with hot plasma gases. The hot plasma gases are produced by injecting a combined primary plasma arc with a secondary gas stream directly into a reaction furnace. The secondary gas stream is tangentially injected into the primary plasma arc gas stream to mix the gases for the required sintering temperature at the highest energy efficiency. The plasma torches are positioned in the furnace ports so that the plasma gas flow is perpendicular to the furnace process gas flow. This process is inexpensive and efficient and results in a superior quality sintered product. It may be adapted to continuous or periodic kilns to achieve a high furnace productivity.
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公开(公告)号：EP0048279B1
公开(公告)日：1985-01-09
申请号：EP81901082.8
申请日：1981-03-27
IPC分类号： C03B37/04 , C01B21/064
CPC分类号： H01M2/145 , C01B21/064 , C03B37/04 , C04B35/62227 , C04B35/6229 , C04B2235/3409 , C04B2235/465 , C04B2235/6562 , D04H1/46 , D04H1/56 , D04H18/02 , H01M2/1613 , H01M2300/0048 , Y10S264/19
摘要： A process for producing a non-woven, boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide (15) is centrifugally spun into stands (23) and attenuated by an annular gas stream into fibers (27) which are compacted at a controlled relative humidity into a mat (35). The mat (35) of fibers (27) passes through a needler (37), which repeatedly drives arrays of needles (41) into the mat (35) from either one or both sides, to reorient and intertwine the fibers (27), producing additional mechanical bonds thereamong. The needled mat (35) then is heated in an anhydrous ammonia atmosphere to convert boron oxide in the fibers (27) into boron nitride (BN). In an alternate embodiment the boron oxide fibers within the mat are convened into boron nitride before being passed through the needler.
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47.发明授权
公开(公告)号：EP0039587B1
公开(公告)日：1984-08-01
申请号：EP81301921.3
申请日：1981-05-01
CPC分类号： F16L5/02 , F16L5/04 , H02G3/0412 , H02G3/22
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公开(公告)号：EP0006921B1
公开(公告)日：1984-07-11
申请号：EP78900139.3
申请日：1978-10-04
CPC分类号： B82Y30/00 , C01B32/956 , C01P2002/60 , C01P2004/32 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C04B35/571
摘要： Very high purity powder of silicon carbide in the submicronic field, which can be used as sintering material for producing shaped articles. The preparation of this silicon carbide powder can be done by passage of alkylsilanes in gaseous phase and chemical scission of the alkylsilane at high temperature. Such a process is carried out in particular by passage of the alkylsilanes through a flow reactor; during this passage the gasified alkylsilane is heated up to a temperature range comprised between 450 C and the temperature produced in a plasma burner, so as to obtain the thermal scission, the pulverulent product thus obtained is then collected in a precipitation chamber. An apparatus allowing to obtain the silicon carbide powder comprises: a graphite conduit (1) with conical inlet surrounded by a thermal insulator, a cooling system (5) arranged at the end of the graphite conduit, a water-cooled device allowing to introduce the gas current through a central injector and a circular injector (6) and a device for precipitation of the power (7).
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49.发明公开Two high hot rolling mill process and narrow strip product 失效Walzverfahrenfürein Duo-Warmwalzwerk und Schmalbanderzeugnis。
公开(公告)号：EP0110556A2
公开(公告)日：1984-06-13
申请号：EP83306523.8
申请日：1983-10-26
CPC分类号： B21B3/003 , B21B9/00 , B21B27/10 , B21B28/04 , B21B31/12 , B21B33/00 , B21B39/16 , B21B45/004 , B21B2003/005 , B21B2027/083 , B21B2035/005
摘要： A rolling mill capable of forming a hot, continuously cast metallic strand into a strip with a large bite and with one pass per mill stand uses only two small diameter rolls per stand, each mounted for rotation in a pair of chock blocks and each having a comparatively narrow, enlarged diameter working portion. The outer surface of the working portion is profiled to maintain the product centered on the rolls and to accommodate for thermal expansion. An hydraulic motor that produces a large torque at a low rotational speed with good control rotates each roll. The motors are coupled to their associated rolls directly. A pair of hydraulic cylinders mounted on upper frame beams are each connected to one of the chock blocks of the upper roll. The upper frame and the cylinders pivot together to provide a direct overhead access to the rolls and their chock blocks for a rapid replacement of the rolls. The mill includes rotary brushes that are adjustably loaded against the working portions of the rolls to remove adhered strand material and to prevent a release agent from accumulating on the rolls. An entrance guide assembly provides a partial atmosphere control and edge rolls that to some extent steer the strand to the center of the rolls. A narrow strip with a recrystallised grain pattern and accurately controlled dimensions is produced by three such two high mills operating In tandem. The first mill produces the high reduction and sets the width of the strip. The second mill reduces the thickness further. The third mill is a finishing mill that produces a final thickness reduction.
摘要翻译： 能够将热连续铸造的金属线材成形为具有大口径并且每通过一次轧制一次的轧制条的轧机仅使用两个小直径轧辊，每个轧辊安装成一对轴承座，并且每个具有 比较窄，直径较大的工作部分。 工作部分的外表面被成型以将产品保持在辊上的中心并适应热膨胀。 在良好控制下以低转速产生大扭矩的液压马达可旋转每个滚筒。 马达直接连接到相关的滚筒。 安装在上框架梁上的一对液压缸各自连接到上辊的一个轴承座。 上框架和气缸枢转在一起以提供对辊和它们的轴承座的直接顶部进入，以快速更换辊。 该研磨机包括旋转刷，其可调节地装载在辊的工作部分上以去除粘附的股线材料并防止脱模剂积聚在辊上。 入口导向组件提供局部气氛控制和边缘辊，其在某种程度上将该线转向辊的中心。 具有再结晶晶粒图案和精确控制尺寸的窄带由三个串联操作的两个高磨机产生。 第一台轧机产生高的压下量并且设定带材的宽度。 第二台磨机进一步降低了厚度。 第三台轧机是精轧机，最终减少了厚度。
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50.发明公开Process for producing fused alumina products 失效Verfahren zur Herstellung von geschmolzenen Aluminiumoxid-Erzeugnissen。
公开(公告)号：EP0109741A2
公开(公告)日：1984-05-30
申请号：EP83305664.1
申请日：1983-09-23
发明人： Seider, Robert J.
CPC分类号： C04B35/653 , C04B35/107 , C09K3/1427
摘要： This process produces a high-purity, low-porosity, alpha-alumina product containing no more than 0.05 percent by weight soda, which is useful in the production of abrasives, refractories and electrical insulators by fusing Bayer alumina together with small amounts of carbon and high-purity titanium dioxide, Ti0 2 , or zirconium dioxide, ZrO 2 .
摘要翻译： 该方法产生高纯度，低孔隙率的α-氧化铝产品，其含有不超过0.05重量％的苏打，其可用于生产磨料，耐火材料和电绝缘体，通过将拜耳氧化铝与少量碳一起熔化，以及 高纯二氧化钛，二氧化钛或二氧化锆，ZrO2。
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