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公开(公告)号：US4393016A
公开(公告)日：1983-07-12
申请号：US297172
申请日：1981-08-28
CPC分类号： C08J9/143 , C08J2325/04 , Y10S264/05 , Y10S264/13
摘要： In a process for producing a plate-like polystyrene resin foam which comprises extruding a molten mixture consisting of a polystyrene resin and a volatile blowing agent by an extruder into a zone having a lower pressure than the inside of the extruder; the improvement wherein said volatile blowing agent is a mixture consisting of dichlorodifluoromethane, ethyl chloride and methyl chloride in which dichlorodifluoromethane accounts for 50 to 70% by weight of the mixture and the remainder consists of ethyl chloride and methyl chloride and the amount of ethyl chloride is at least 30% by weight based on the total amount of ethyl chloride and methyl chloride; and wherein said volatile blowing agent is present in said molten mixture in a proportion of 8 to 17 parts by weight per 100 parts by weight of the polystyrene resin component.
摘要翻译： 在制造板状聚苯乙烯树脂泡沫的方法中，其包括通过挤出机将由聚苯乙烯树脂和挥发性发泡剂组成的熔融混合物挤出到压力低于挤出机内部的区域中; 其中所述挥发性发泡剂是由二氯二氟甲烷，氯乙烷和氯甲烷组成的混合物，其中二氯二氟甲烷占混合物重量的50-70％，其余由氯乙烷和氯甲烷组成，氯乙烷的量为 至少30重量％，基于乙基氯和氯甲烷的总量; 并且其中所述挥发性发泡剂以每100重量份聚苯乙烯树脂组分8至17重量份的比例存在于所述熔融混合物中。
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公开(公告)号：US4260572A
公开(公告)日：1981-04-07
申请号：US40086
申请日：1979-05-17
CPC分类号： C08J9/0061 , C08J9/0014 , C08J9/143 , C08J2325/06 , C08J2425/00 , Y10S264/05
摘要： A foamed polystyrene board useful as a thermal insulating material is produced by melting a polystyrene having a melt index of from 0.5 to 5 under heat in an extruder, mixing the molten mass with a blowing agent composed of methyl chloride and dichlorodifluoromethane, and extruding the resulting foamable molten gel from the extruder. As a novel essential feature, a flowability improver having a melting point higher than 70.degree. C., such as an aromatic sulfonamide, a brominated aromatic compound, a brominated alicyclic compound or a poly(.alpha.-methylstyrene), is mixed with the polystyrene within the extruder to impart superior extrusion formability. The foam has good dimensional stability both at room temperature and higher temperature, high mechanical strength and superior thermal insulation properties.
摘要翻译： 用作绝热材料的发泡聚苯乙烯板通过在挤出机中在加热下熔融熔体指数为0.5至5的聚苯乙烯熔融而制得，将熔融物料与由氯甲烷和二氯二氟甲烷组成的发泡剂混合，并将所得的 来自挤出机的可发泡熔融凝胶。 作为新的基本特征，将熔点高于70℃的流动性改进剂如芳族磺酰胺，溴化芳族化合物，溴化脂环族化合物或聚（α-甲基苯乙烯）与聚苯乙烯混合 该挤出机具有优异的挤出成型性。 该泡沫体在室温和较高温度下具有良好的尺寸稳定性，高机械强度和优异的隔热性能。
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3.发明授权
公开(公告)号：US5737927A
公开(公告)日：1998-04-14
申请号：US816737
申请日：1997-03-14
申请人： Masahiko Takahashi , Yasumi Ohtani , Rohana Chandratilleke , Hideo Hatakeyama , Hideki Nakagome , Toru Kuriyama
发明人： Masahiko Takahashi , Yasumi Ohtani , Rohana Chandratilleke , Hideo Hatakeyama , Hideki Nakagome , Toru Kuriyama
CPC分类号： F25D19/006 , H01F6/04
摘要： A cryogenic cooling apparatus is provided, wherein the degree of freedom of installation and use is increased without deteriorating the reliability or stability and the range of uses of the apparatus is also increased. A coil unit and a refrigeration unit are positioned such that a second heat conductive member disposed on an extendible wall of a vacuum container and a fourth heat conductive member disposed on an extendible wall of another vacuum container face each other coaxially. In this state, the coil unit and refrigeration unit are relatively moved to approach each other, and thus the second heat conductive member and fourth heat conductive member come in contact. If the coil unit and refrigeration unit are further moved, the extendible wall extends and consequently the second heat conductive member comes in contact with a first heat conductive member. In addition, the extendible wall contracts and consequently the fourth heat conductive member comes in contact with a third heat conductive member. Thus, a superconducting coil is thermally connected to the refrigeration unit so that the superconducting coil is cooled.
摘要翻译： 提供了一种低温冷却装置，其中提高了安装和使用的自由度，而不会降低可靠性或稳定性，并且装置的使用范围也增加。 线圈单元和制冷单元被定位成使得设置在真空容器的可延伸壁上的第二导热构件和设置在另一真空容器的可延伸壁上的第四导热构件同时面对。 在这种状态下，线圈单元和制冷单元相对移动以彼此靠近，因此第二导热构件和第四导热构件接触。 如果线圈单元和制冷单元进一步移动，则可延伸壁延伸并且因此第二导热构件与第一导热构件接触。 此外，伸缩壁收缩，从而第四导热构件与第三导热构件接触。 因此，超导线圈被热连接到制冷单元，使得超导线圈被冷却。
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公开(公告)号：US5412952A
公开(公告)日：1995-05-09
申请号：US252270
申请日：1994-06-01
CPC分类号： F25B9/145 , F25B2309/1407 , F25B2309/1408 , F25B2309/1413 , F25B2309/1414 , F25B2309/1417 , F25B2309/1418 , F25B2309/14241 , F25B9/10 , F25D19/006
摘要： The present invention provides a pulse tube refrigerator, comprising a regenerator having an inlet port and an outlet port, a pulse tube having one end portion connected in series to the outlet port of the regenerator, a gas compressor connected to the inlet port of the regenerator, a first valve disposed between the discharge port of the gas compressor and the inlet port of the regenerator, a second valve disposed between the suction port of the gas compressor and the inlet port of the regenerator, a first valve controller for selectively opening/closing alternately the first and second valves to permit a high pressure coolant gas discharged from the discharge port of the gas compressor to be guided into the pulse tube through the regenerator and, then, to permit said coolant gas to be sucked into the gas compressor through the suction port thereof via the reverse passageway so as to generate coldness, a third valve disposed between the other end portion of the pulse tube and the discharge port of the gas compressor, a fourth valve disposed between the other end portion of the pulse tube and the suction port of the gas compressor, and a second valve controller serving to open/close the third and fourth valves in relation to the opening/closing of the first and second valves.
摘要翻译： 本发明提供一种脉冲管制冷器，包括具有入口和出口的再生器，具有与再生器的出口串联连接的一端部的脉管，与再生器的入口连接的气体压缩机 设置在所述气体压缩机的排出口与所述再生器的入口之间的第一阀，设置在所述气体压缩机的吸入口与所述再生器的入口之间的第二阀，用于选择性地打开/关闭的第一阀控制器 交替地，第一阀和第二阀允许从气体压缩机的排放口排出的高压冷却剂气体通过再生器被引导到脉冲管中，然后允许所述冷却剂气体被吸入气体压缩机 其通过反向通道的吸入口产生冷却，设置在脉冲管的另一端部和盘之间的第三阀 设置在脉冲管的另一端部与气体压缩机的吸入口之间的第四阀，以及第二阀控制器，用于相对于打开/关闭阀来打开/关闭第三阀和第四阀， 关闭第一和第二阀。
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公开(公告)号：US5335505A
公开(公告)日：1994-08-09
申请号：US65900
申请日：1993-05-25
CPC分类号： F25B9/145 , F25B2309/1407 , F25B2309/1408 , F25B2309/1413 , F25B2309/1414 , F25B2309/1417 , F25B2309/1418 , F25B2309/14241 , F25B9/10 , F25D19/006
摘要： The present invention provides a pulse tube refrigerator, comprising a regenerator having an inlet port and an outlet port, a pulse tube having one end portion connected in series to the outlet port of the regenerator, a gas compressor connected to the inlet port of the regenerator, a first valve disposed between the discharge port of the gas compressor and the inlet port of the regenerator, a second valve disposed between the suction port of the gas compressor and the inlet port of the regenerator, a first valve controller for selectively opening/closing alternately the first and second valves to permit a high pressure coolant gas discharged from the discharge port of the gas compressor to be guided into the pulse tube through the regenerator and, then, to permit said coolant gas to be sucked into the gas compressor through the suction port thereof via the reverse passageway so as to generate coldness, a third valve disposed between the other end portion of the pulse tube and the discharge port of the gas compressor, a fourth valve disposed between the other end portion of the pulse tube and the suction port of the gas compressor, and a second valve controller serving to open/close the third and fourth valves in relation to the opening/closing of the first and second valves.
摘要翻译： 本发明提供一种脉冲管制冷器，包括具有入口和出口的再生器，具有与再生器的出口串联连接的一端部的脉管，与再生器的入口连接的气体压缩机 设置在所述气体压缩机的排出口与所述再生器的入口之间的第一阀，设置在所述气体压缩机的吸入口与所述再生器的入口之间的第二阀，用于选择性地打开/关闭的第一阀控制器 交替地，第一阀和第二阀允许从气体压缩机的排放口排出的高压冷却剂气体通过再生器被引导到脉冲管中，然后允许所述冷却剂气体被吸入气体压缩机 其通过反向通道的吸入口产生冷却，设置在脉冲管的另一端部和盘之间的第三阀 设置在脉冲管的另一端部与气体压缩机的吸入口之间的第四阀，以及第二阀控制器，用于相对于打开/关闭阀来打开/关闭第三阀和第四阀， 关闭第一和第二阀。
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6.发明授权Process and apparatus for extruding plastic foams through a fluorocarbon lined die shaping means having extended wear characteristics 失效用于通过具有延长的磨损特性的氟碳化合物衬里模具成型装置挤压塑料泡沫的方法和装置
公开(公告)号：US4324748A
公开(公告)日：1982-04-13
申请号：US189944
申请日：1980-09-22
申请人： Hideo Hatakeyama , Toru Yamamoto
发明人： Hideo Hatakeyama , Toru Yamamoto
CPC分类号： B29C44/605 , B29C44/50 , B29C47/0019 , B29C47/12 , B29C33/40 , B29K2827/18 , Y10S425/055 , Y10S425/115
摘要： In a method for producing a plastic foam of a desired expanded dimension which is constituted by extruding a melt of a thermoplastic synthetic resin containing a blowing agent through a die of an extruder and passing the extrudate through a shaping device located outwardly of the extruder and secured to the discharge end of the extruder while expanding and solidifying the molten mass so that it fills the shaping device; the improvement wherein at least a part of that area of the inside surface of the shaping device with which the expanded resin makes contact is formed of a plate of a fluorocarbon resin, said plate being secured to the inside surface of the shaping device by fitting portions, said fitting portions having a sufficient space for absorbing an increase in the volume of the fluorocarbon resin plate at the temperature of extrusion molding; and an apparatus for use in the above described process.
摘要翻译： 在制造具有所需膨胀尺寸的塑料泡沫塑料的方法中，该方法是将包含发泡剂的热塑性合成树脂的熔体通过挤出机的模头挤出并使挤出物通过位于挤出机外部的成形装置并固定 到达挤出机的排出端，同时使熔融体膨胀和固化，使其填充成形装置; 改进之处在于，与发泡树脂接触的成形装置的内表面的至少一部分区域由碳氟树脂板形成，所述板通过装配部分固定到成形装置的内表面 所述装配部分具有足够的空间，用于在挤出成型温度下吸收氟碳树脂板的体积增加; 以及用于上述方法的装置。
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7.发明授权
公开(公告)号：US5711157A
公开(公告)日：1998-01-27
申请号：US647741
申请日：1996-05-15
申请人： Yasumi Ohtani , Masahiko Takahashi , Hideo Hatakeyama , Rohana Chandratilleke , Toru Kuriyama , Hideki Nakagome , Takayuki Kobayashi , Tomomi Hattori , Tatsuya Yoshino
发明人： Yasumi Ohtani , Masahiko Takahashi , Hideo Hatakeyama , Rohana Chandratilleke , Toru Kuriyama , Hideki Nakagome , Takayuki Kobayashi , Tomomi Hattori , Tatsuya Yoshino
CPC分类号： F25B9/10 , F25B9/14 , F25B9/145 , H01F6/04 , F25B2309/003 , F25B2309/1408 , F25B2309/1411 , F25B2309/1413 , F25B2309/1415 , F25B2309/1417 , F25B2309/1418 , F25B2309/14241 , F25B2309/1425
摘要： A superconducting magnet apparatus comprises a superconducting coil unit, and a refrigerant-filled chamber type refrigerator having a plurality of cooling stages. At least a final cooling stage of the cooling stages includes a static-type refrigerant-filled chamber and is associated with the superconducting coil unit, and at least a first cooling stage of the cooling stages includes a movable-type refrigerant-filled chamber.
摘要翻译： 超导磁体装置包括超导线圈单元和具有多个冷却级的制冷剂填充室型冷藏库。 至少冷却阶段的最终冷却阶段包括静态制冷剂填充室并且与超导线圈单元相关联，并且冷却级的至少第一冷却级包括可动式制冷剂填充室。
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