公开(公告)号：US4316965A

公开(公告)日：1982-02-23

申请号：US152314

申请日：1980-05-22

Applicant: Isao Oda ,  Tadaaki Matsuhisa

Inventor： Isao Oda ,  Tadaaki Matsuhisa

IPC: C04B35/10 ,  C04B35/195 ,  C04B35/46 ,  C04B35/478 ,  C04B35/04 ,  C04B35/18 ,  C04B35/44

CPC classification number: C04B35/195 ,  C04B35/478

Abstract: The invention relates to low-expansion ceramics, the chemical composition of which consists of 1.2 to 20% by weight of magnesia (MgO), 6.5 to 68% by weight of alumina (Al.sub.2 O.sub.3), 19 to 80% by weight of titanium in terms of titanium oxide (TiO.sub.2), 1 to 20% by weight of silica (SiO.sub.2), and 0.5 to 20% by weight of iron in terms of ferric oxide (Fe.sub.2 O.sub.3); the major component of crystalline phase thereof is a solid solution of magnesium oxide-aluminum oxide-titanium dioxide-silicon oxide-iron oxide; the ceramics have a coefficient of thermal expansion of not more than 20.times.10.sup.-7 (1/.degree.C.) in a temperature range of 25.degree. C. to 800.degree. C., a four-point flexural strength of not smaller than 50 kg/cm.sup.2 at room temperature, and a melting point of not lower than 1,500.degree. C.; and a method of producing low-expansion ceramics comprising the steps of preparing a batch, plasticizing the batch, if necessary, and shaping the batch; drying the body thus shaped; and firing the shaped body at 1,300.degree. C. to 1,700.degree. C., thereby producing ceramics having a coefficient of thermal expansion of not more than 20.times.10.sup.-7 (1/.degree.C.) in a temperature range of 25.degree. C. to 800.degree. C., a four-point flexural strength of not smaller than 50 kg/cm.sup.2 at room temperature, and a melting point of not lower than 1,500.degree. C., and wherein the shape of ceramics is a honeycomb structure.

Abstract translation: 本发明涉及低膨胀陶瓷，其化学成分由1.2〜20重量％的氧化镁（MgO），6.5〜68重量％的氧化铝（Al 2 O 3），19〜80重量％的钛组成 的二氧化钛（TiO 2），1〜20重量％的二氧化硅（SiO 2）和0.5〜20重量％的以换算成的氧化铁（Fe 2 O 3）计的铁。 其结晶相的主要成分是氧化镁 - 氧化铝 - 二氧化钛 - 氧化硅 - 氧化铁的固溶体; 在25℃〜800℃的温度范围内，陶瓷的热膨胀系数为20×10 -7（1 /℃）以下，四点弯曲强度为50kg / cm2，熔点不低于1500℃。 以及生产低膨胀陶瓷的方法，包括如下步骤：制备批料，如果需要，对批料进行增塑和成型; 干燥身体如此成形; 并将成形体在1300℃〜1700℃下烧成，从而在25℃〜800℃的温度范围内制造热膨胀系数为20×10 -7（1 /℃）以下的陶瓷。 ℃，室温下不低于50kg / cm2的四点弯曲强度，不低于1500℃的熔点，陶瓷的形状是蜂窝结构。

公开(公告)号：US4304585A

公开(公告)日：1981-12-08

申请号：US75184

申请日：1979-09-13

Applicant: Isao Oda ,  Tadaaki Matsuhisa

Inventor： Isao Oda ,  Tadaaki Matsuhisa

IPC: F28D19/00 ,  F28D19/04 ,  F28F21/04 ,  C03C27/04

CPC classification number: F28D19/042 ,  F28F21/04 ,  Y10S165/043 ,  Y10T428/24149

Abstract: A thermal stress-resistant rotary regenerator type ceramic heat exchanger comprising a plurality of ceramic honeycomb structural matrix segments bonded by a ceramic binder is produced by extruding a plurality of ceramic honeycomb structural matrix segments, firing the segments, bonding the segments with one another by application of a ceramic binder, said ceramic binder after the subsequent sintering having substantially the same mineral composition as said ceramic matrix segments and the thickness of 0.1 to 6 mm, and a difference in thermal expansion being not greater than 0.1% at 800.degree. C. relative to the ceramic matrix segments, drying the bonded segments, and firing the dried bonded segments.

Abstract translation: 通过挤出多个陶瓷蜂窝结构基质片段，烧制这些片段，通过应用将片段彼此粘接，制造出包含由陶瓷粘合剂粘接的多个陶瓷蜂窝结构基质片段的耐热应力旋转再生器型陶瓷热交换器 的陶瓷粘合剂，所述陶瓷粘合剂在随后的烧结后具有与所述陶瓷基体片段基本相同的矿物组成，厚度为0.1至6mm，并且热膨胀差在800℃下不大于0.1％。 对陶瓷基质片段进行干燥，干燥接合的片段，并焙烧干燥的接合片段。

公开(公告)号：US4273587A

公开(公告)日：1981-06-16

申请号：US64841

申请日：1979-08-08

Applicant: Isao Oda ,  Masayuki Kaneno ,  Issei Hayakawa

Inventor： Isao Oda ,  Masayuki Kaneno ,  Issei Hayakawa

IPC: C04B35/115 ,  C04B35/443 ,  C04B35/44

CPC classification number: C04B35/115 ,  C04B35/443

Abstract: Polycrystalline spinel sintered body consisting mainly of Al.sub.2 O.sub.3 and MgO in a molar ratio of Al.sub.2 O.sub.3 /MgO of ranging from 0.52/0.48 to 0.70/0.30 and containing 0.001-0.1% by weight of LiF has a high in-line transmission. The sintered body can be obtained by calcining a powdery mixture of Al.sub.2 O.sub.3 and MgO in a specifically limited molar ratio, molding the calcined mixture into a shaped article together with a specifically limited amount of LiF, and firing the shaped article under a specifically limited temperature condition.

Abstract translation: Al2O3 / MgO的摩尔比为0.52 / 0.48〜0.70 / 0.30，含有0.001-0.1重量％的LiF的主要由Al2O3和MgO组成的多晶尖晶石烧结体具有高的在线透射率。 烧结体可以通过以特别有限的摩尔比煅烧Al 2 O 3和MgO的粉末状混合物而获得，将煅烧的混合物与特定有限量的LiF一起模塑成型制品，并在特定的有限温度条件下焙烧成形制品 。

公开(公告)号：US4942999A

公开(公告)日：1990-07-24

申请号：US236145

申请日：1988-08-25

Applicant: Isao Oda ,  Takao Soma ,  Nobuo Tsuno ,  Takashi Ando ,  Yoshizumi Nakasuji

Inventor： Isao Oda ,  Takao Soma ,  Nobuo Tsuno ,  Takashi Ando ,  Yoshizumi Nakasuji

IPC: C04B37/02

CPC classification number: C04B37/026 ,  C04B2237/123 ,  C04B2237/125 ,  C04B2237/127 ,  C04B2237/365 ,  C04B2237/405 ,  C04B2237/708 ,  C04B2237/76 ,  C04B2237/84 ,  Y10T428/12535 ,  Y10T428/12625 ,  Y10T428/12632

Abstract: Composite bodies comprise a metallic member and a ceramic member integrally joined together by joining a projection of the ceramic member to a recess of the metallic member. Their joining strength is improved by substantially limiting brazing metal to an interface between the outer peripheral surface of the projection of the ceramic member and the innner peripheral surface of the recess of the metallic member. The joining strength is also improved by forming a groove around the outer periphery of the metallic member at the joined end. The joining strength is also improved by providing a space or an intermediate member between a tip end surface of the projection and a bottom surface of the recess and attaining the relation: ##EQU1## in which G, L.sub.1, .alpha., .alpha.', T.sub.S and T.sub.R are the thickness of the space or the intermediate member, a distance from the bottom surface of the recess of the metallic member to the joining end, a coefficient of thermal expansion of the metallic member, a coefficient of thermal expansion of the ceramic member, a solidifying temperature of the brazing metal, and room temperature, respectively. The joining strength is also improved by radially enlarging the recess near the opening and thinning the brazing metal toward the opening of the recess.

公开(公告)号：US4736384A

公开(公告)日：1988-04-05

申请号：US938210

申请日：1986-12-04

Applicant: Hideaki Sakai ,  Isao Oda

Inventor： Hideaki Sakai ,  Isao Oda

IPC: H05B7/14

CPC classification number: H05B7/14 ,  Y02P10/256 ,  Y02P10/259

Abstract: An electrode adding apparatus which adds a new electrode to an electrode held by the electrode holder of an electric furnace by screwing the lower end of the new electrode in the upper end of the electrode held by the electrode holder, when the electrode held by the electrode holder is consumed. In adding the new electrode to the consumed electrode, the new electrode is gripped by a clamping device rotatably held by a casing, then the casing is transported by a crane to bring the new electrode directly above the consumed electrode, and following which the casing is lowered to position the new electrode in alignment with the consumed electrode. Then, the clamping device is driven for rotation to screw the lower end of the new electrode in the upper end of the consumed electrode. In adding the new electrode to the consumed electrode, the rotative reaction force of the casing is received by the electrode holder so that the casing is restrained from rotation.

Abstract translation: 一种电极添加装置，当电极被电极保持时，通过旋转由电极保持器保持的电极的上端中的新电极的下端，将电极添加到由电炉的电极夹持器保持的电极上 持有人被消费。 在将新的电极添加到消耗的电极中时，新的电极被可旋转地保持在壳体上的夹持装置夹持，然后壳体被起重机输送，以将新电极直接置于消耗电极的上方， 降低以使新电极与消耗的电极对准。 然后，夹紧装置被驱动旋转以将消耗电极的上端中的新电极的下端螺旋。 在将新的电极添加到消耗的电极中时，壳体的旋转反作用力被电极夹持器接收，使得壳体被限制旋转。

公开(公告)号：US4692420A

公开(公告)日：1987-09-08

申请号：US892362

申请日：1986-08-04

Applicant: Isao Oda ,  Takao Soma

Inventor： Isao Oda ,  Takao Soma

IPC: C04B35/584 ,  C04B35/58

CPC classification number: C04B35/584

Abstract: A silicon nitride sintered body essentially consisting of compounds of Mg, Sr, Ce and Al in amounts of from 0.5 to 5% by weight when calculated as MgO, from 0.5 to 5% by weight when calculated as SrO, from 1 to 10% by weight when calculated as CeO.sub.2 and from 1 to 20% by weight when calculated as Al.sub.2 O.sub.3, respectively, and the balance being silicon nitride. A method of manufacturing the silicon nitride sintered body is also disclosed. The silicon nitride sintered body has a low thermal conductivity while high mechanical strength and high thermal shock resistance being maintained.

Abstract translation: 一种氮化硅烧结体，其主要由Mg，Sr，Ce和Al的化合物组成，以MgO计算为0.5〜5重量％，以SrO计算为0.5〜5重量％，1〜10重量％ 以CeO 2计，当以Al 2 O 3计算时为1〜20重量％，余量为氮化硅。 还公开了一种制造氮化硅烧结体的方法。 氮化硅烧结体具有低导热性，同时保持高机械强度和高耐热冲击性。

公开(公告)号：US4601332A

公开(公告)日：1986-07-22

申请号：US537691

申请日：1983-11-10

Applicant: Isao Oda ,  Tadaaki Matsuhisa

Inventor： Isao Oda ,  Tadaaki Matsuhisa

IPC: C04B35/00 ,  F28D7/16 ,  F28F7/00 ,  F28F7/02 ,  F28F21/04 ,  F28F1/04

CPC classification number: F28F7/02 ,  F28F21/04 ,  Y10S165/395 ,  Y10T428/24149

Abstract: Ceramic honeycomb type recuperative heat exchangers having a large number of parallel channels formed of partition walls are disclosed, in which fluids to be heat-exchanged are passed through respective channels that are produced by extruding a ceramic raw batch material into a honeycomb structural body, drying the shaped honeycomb structural body, prior to or after firing step cutting off partition walls in the given rows of the honeycomb structural body in the axial direction of the channels to a given depth from the end surface of the honeycomb structural body and sealing only the end surfaces of said rows.

公开(公告)号：US4214666A

公开(公告)日：1980-07-29

申请号：US963397

申请日：1978-11-24

Applicant: Isao Oda ,  Masayuki Kaneno ,  Noboru Yamamoto

Inventor： Isao Oda ,  Masayuki Kaneno ,  Noboru Yamamoto

IPC: C04B35/115 ,  H01J5/04 ,  H01J61/30 ,  H01K1/28 ,  C01F7/02

CPC classification number: C04B35/115 ,  H01J5/04 ,  H01J61/302

Abstract: A tubular discharge envelope and a high-pressure vapor discharge lamp using the same are disclosed. The envelope is composed of a polycrystalline transparent alumina having an average crystal grain size of 20-60 .mu.m and crystal grains of 20 .mu.m or less which occupy not more than 30% per unit area of the envelope.

Abstract translation: 公开了一种管状放电封套和使用其的高压蒸气放电灯。 外壳由平均晶粒尺寸为20-60μm的多晶透明氧化铝和20μm或更小的晶粒组成，每个单位面积的信封不超过30％。

公开(公告)号：US4897311A

公开(公告)日：1990-01-30

申请号：US195447

申请日：1988-05-12

Applicant: Isao Oda ,  Nobuo Tsuno

Inventor： Isao Oda ,  Nobuo Tsuno

IPC: B32B15/04 ,  B23P11/00 ,  B23P11/02 ,  C04B37/02 ,  F16B1/00 ,  F16B4/00 ,  F16D1/00 ,  F16D1/072 ,  C04B35/48

CPC classification number: C04B37/021 ,  B23P11/025 ,  F16B4/00 ,  F16B4/006 ,  F16D1/072 ,  C04B2235/6567 ,  C04B2237/32 ,  C04B2237/343 ,  C04B2237/36 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/40 ,  C04B2237/403 ,  C04B2237/405 ,  C04B2237/406 ,  C04B2237/525 ,  F16B2001/0085

Abstract: A metal-ceramic composite body is disclosed, which comprises a metallic member having a depression or through-hole therein, and a ceramic member having a protrusion capable of inserting into the depression or through-hole. Both the members are joined to each other through interference fitting below such a temperature that the structure of the metallic material begins to change into austenite phase or a temperature between the above temperature and a service temperature.

Abstract translation: 公开了一种金属陶瓷复合体，其包括其中具有凹陷或通孔的金属构件和具有能够插入凹部或通孔中的突起的陶瓷构件。 两个构件通过在金属材料的结构开始变为奥氏体相或上述温度和使用温度之间的温度的温度之下通过干涉配合相互连接。

公开(公告)号：US4856970A

公开(公告)日：1989-08-15

申请号：US837203

申请日：1986-03-10

Applicant: Isao Oda ,  Yoshihiko Ishida

Inventor： Isao Oda ,  Yoshihiko Ishida

IPC: B23K20/00 ,  B23K1/19 ,  B23P11/00 ,  B23P11/02 ,  B23P15/02 ,  C04B37/02 ,  F01D5/02 ,  F01L1/14 ,  F01L3/02 ,  F02F7/00 ,  F16B1/00 ,  F16B4/00 ,  F16D1/08

CPC classification number: F01D5/025 ,  F01L1/14 ,  F01L3/02 ,  F02F7/0087 ,  F16B4/00 ,  F16D1/0858 ,  F05D2300/121 ,  F05D2300/2118 ,  F16B2001/0085

Abstract: In a metal-ceramic combination wherein a monobloc ceramic member comprising a base, a protrusion integrally formed on the base and an easement portion on and around the root of the protrusion, is combined with a metallic member, an improved combination having an excellent strength in total is obtained by fitting the protrusion tightly into a recession or conduit of the metallic member, leaving clearance of 0.5 mm or more between the easement portion and a defined edge of joint interface of the said two members. The combination of the invention is particularly useful for engine parts to be subjected to high temperatures and repeated stresses such as a turbocharger rotor, piston, tappet, rocker arm, exhaust valve, cam and the like.

Abstract translation: 在金属陶瓷组合中，其中包括基底的整体陶瓷构件，在基座上整体形成的突起和突起的根部周围的接地部分与金属构件组合，具有优异的强度的组合 通过将突起紧紧地装配到金属构件的凹部或导管中而获得总数，在地板部分和所述两个构件的接合界面的限定边缘之间留出0.5mm以上的间隙。 本发明的组合对于受到高温的发动机部件和诸如涡轮增压器转子，活塞，挺杆，摇臂，排气阀，凸轮等的重复应力特别有用。