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91. 发明专利

JPS6254532B2 失效
公开(公告)号：JPS6254532B2
公开(公告)日：1987-11-16
申请号：JP15153483
申请日：1983-08-22
申请人： HITACHI LTD
发明人： FURUKAWA KEISHIN , ISHIBE MASAHIKO , MATSUSHITA NOBUO , KANZAKI ATSUMITSU
IPC分类号： B01F7/04 , B01J19/00 , B01J19/18 , C08G85/00

92. 发明专利

JPS6250179B2 失效
公开(公告)号：JPS6250179B2
公开(公告)日：1987-10-23
申请号：JP5422984
申请日：1984-03-23
申请人： HITACHI LTD
发明人： FUJII JUJI , YAMANAKA KATSUHISA , FURUKAWA KEISHIN
IPC分类号： B01F7/02 , B01F7/04

93. 发明专利

JPS6213818A BEARING DEVICE 失效
公开(公告)号：JPS6213818A
公开(公告)日：1987-01-22
申请号：JP15227385
申请日：1985-07-12
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： ISHIDA KAZUO , ISHIBASHI KANSHO , SHINDO HIROHIKO , YAMANAKA KATSUHISA , FURUKAWA KEISHIN
IPC分类号： F16C33/12 , B22F5/00 , C22C38/00 , C22C38/16 , F16J15/34
摘要： PURPOSE:To obtain a bearing device which is little worn away under the conditions of high temperature and no lubrication and has durability by providing a bearing material and a sliding material sliding thereon which are formed by a complex boride-base sintered alloy. CONSTITUTION:As a material forming a bearing material 7 and a sliding material 5 sliding thereon, used is a high temperature and wear-resisting sintered alloy steel which is obtained by using alloy steel powder having the gradients shown in the attached table as its main gradient, adding 0.5-2.5% of C to the alloy steel powder, further adding 0.5-2.5% of Pb thereto, mixing, forming, sintering, hot compressing, quenching and tempering same. Thus, if such bearing material 7 and sliding material 5 are used, it is possible to obtain a bearing device which is little worn away under the conditions of high temperature and no lubrication and has durability.

94. 发明专利

JPS61242636A REACTOR 失效
公开(公告)号：JPS61242636A
公开(公告)日：1986-10-28
申请号：JP6361585
申请日：1985-03-29
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： YAMANAKA KATSUHISA , FURUKAWA KEISHIN , SHINDO HIROHIKO , KANEYUKI YUKIO , KINOSHITA TAKATOSHI
IPC分类号： B01F7/02 , B01F7/04 , B01J19/18
摘要： PURPOSE:To enable the batch process of a high viscous liquid by connecting one end of a can liquid circulating apparatus provided with a liquid feeder in the inside thereof with one end of a horizontal-type reactor via a three-way changeover valve and connecting the other end with the other end of the horizontal-type reactor. CONSTITUTION:While a can liquid is stirred in the rotating direction with the stirring blades 6, it is discharged to the inside of a can liquid circulating apparatus 9 through an outlet 4a. It is transferred with the liquid feeder 8 and circulated to the inlet side of a horizontal-type reactor 4 via the three-way changeover valve 10 and a conduit 11. In this case, the flow of the can liquid is circulated as shown by an arrow 12 and thereby the can liquid is effectively stirred in the axial direction because it is circulated in the direction of a stirring shaft 5. Furthermore it is circulated with the can liquid circulating apparatus 9 and thereby the stirring effect is obtained even in the inside of the circulating apparatus 9 and the quality of a product can be made more uniform.

95. 发明专利

JPS60205011A SELF-LUBRICATING BEARING 失效
公开(公告)号：JPS60205011A
公开(公告)日：1985-10-16
申请号：JP5831884
申请日：1984-03-28
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FURUKAWA KEISHIN , YAMANAKA KATSUHISA , ISHIBASHI KANSHIYOU
IPC分类号： F16C23/04 , F16C33/04 , F16C33/12 , F16C33/24
摘要： PURPOSE:To make it possible to use a ceramic bearing under a high temperature and no lubrication, by forming an abrasion powder discharge groove in either one of the slide surfaces of a ceramic rotary shaft and of the ceramic bearing, and as well by slidably supporting the bearing in a housing through the intermediary of a spherical surface. CONSTITUTION:A ceramic bearing 6 which bears a ceramic rotary shaft 3, is slidably supported at its outside in a housing 1 through the intermediary of a spherical surface 7, and the rotating direction of the rotary shaft 3 is fixed with the use of a pin 4. Further, in order to remove abrasion powder generated between the slide surfaces of the rotary shaft 3 and of the bearing 6, an abrasion powder discharge groove 5 is formed in the inner surface of the bearing 6.

96. 发明专利

JPS5952882B2 失效
公开(公告)号：JPS5952882B2
公开(公告)日：1984-12-21
申请号：JP14134879
申请日：1979-11-02
申请人： HITACHI LTD
发明人： SUMYA TOMOAKI , MAZAKI YASUNORI , FURUKAWA KEISHIN , INOE YUKIO , ODA CHIKAO
IPC分类号： C08F2/00 , B01J19/18 , C08F2/02

97. 发明专利

JPS57170914A CONTINUOUS PREPARATION OF HIGH IMPACT POLYSTYRENE 失效
公开(公告)号：JPS57170914A
公开(公告)日：1982-10-21
申请号：JP5556881
申请日：1981-04-15
申请人： HITACHI LTD
发明人： FUKUMOTO CHIHIRO , FURUKAWA KEISHIN , ODA CHIKAO
IPC分类号： C08F2/00 , B01F7/04 , B01J19/20 , C08F2/02 , C08F279/02 , C08F291/00 , C08F291/02
摘要： PURPOSE:To prepare the titled resin having low residual monomer content and excellent qualities, continuously, by spraying styrene to the surface of the polymerization liquid during the bulk polymerization of a styrene solution of a rubber, thereby evaporating the styrene and removing the heat of polymerization. CONSTITUTION:Rubber is dissolved in styrene in a horizontal multi-state tank 1, and prepolymerized in the first polymerizer 2 of the horizontal multi-stage tank at 100- 200 deg.C until the phase-conversion of rubber takes place and the rate of polymerization reaches about 30%. The prepolymer is polymerized in the second polymerizer 3 having a rotary shaft extended through the polymerizer and furnished with a number of disc blades, at 100-200 deg.C under reduced pressure until the rate of polymerization reaches about 60%. The final polymerizer 4 is furnished with a pair of stirring shafts 16a and 16b each having a plurality of stirring blades with a scraping blade fixed thereto. The polymerization liquid is polymerized in the final polymerizer 4 at 100-230 deg.C until the rate of polymerization at the outlet 19 reaches about 70-85%, sent to the monomer removing apparatus 5 to effect the monomer removal by rapid heating, extruded through the die head 10, and pelletized with the chip cutter. The evaporated monomer is condensed and sprayed to the surface of the polymer in the polymerizers 3 and 4 to remove the heat of polymerization with the heat of evaporation of the monomer.

98. 发明专利

JPS57167301A PROCESS AND APPARATUS FOR PRODUCING POLYMER 失效
公开(公告)号：JPS57167301A
公开(公告)日：1982-10-15
申请号：JP5179481
申请日：1981-04-08
申请人： HITACHI LTD
发明人： TSUBONE TSUNEHIKO , FURUKAWA KEISHIN , ISHIBE MASAHIKO , YAMAMOTO HIDEJI
IPC分类号： C08F2/00 , C08G85/00
摘要： PURPOSE:To produce a polymer having a uniform polymerization degree, by charging a definite volume of a monomer in the fine particle form after giving thereto the energy for initiating polymerization and polymerizing the monomer while removing the heat of polymerization. CONSTITUTION:A monomer 6 in a tank 5 is pressurized by a transfer pump 7, given the energy for initiating polymerization in a heater 11, fed to a nozzle 4 vibrated by an vibrator 3 oscillated by a high-frequency oscillator 2 at a constant period, and injected in the form of a monomer jet 8. The resulting definite volume of monomer particles 9 are passed through a charging electrode 14, then, a charge by a charging source 15 and an earth 16, and fed tangetially from a nozzle 10 to a cylindrical polymerization vessel 1 charged in the same sign as that of particles. Then, the monomer is polymerized at a constant temperature, while deposition is prevented by virtue of the repulsion between the vessel 1 and particles 9, both charged in the same sign, or among the particles 9 and while the heat of polymerization is removed by withdrawing the monomer vapor evaporated from the surfaces of the particles 9 from a vapor nozzle 12.

99. 发明专利

JPS534089A METHOD OF REMOVING STYRENE MONOMER IN POLYSTYRENE 失效
公开(公告)号：JPS534089A
公开(公告)日：1978-01-14
申请号：JP7777976
申请日：1976-07-02
申请人： HITACHI LTD
发明人： INOUE YUKUO , FURUKAWA KEISHIN , ODA OYAO
IPC分类号： C08F2/00 , C08F6/00 , C08F6/06 , C08F12/08
摘要： PURPOSE:A method of removing efficiently remaining styrene monomer to give high-quality polystyrene using a specific polymerizer provided with a unifrom, strong and effective agitating mechanism and having a large evaporation surface as the final stage polymerizer.

100. 发明专利

JPS52134698A APPARATUS FOR CONTINUOUS POLYCONDENSATION 失效
公开(公告)号：JPS52134698A
公开(公告)日：1977-11-11
申请号：JP5083376
申请日：1976-05-06
申请人： HITACHI LTD
发明人： FURUKAWA KEISHIN , KANZAKI ATSUMITSU
IPC分类号： C08G63/00 , B01J14/00 , C08G63/78 , C08G85/00
摘要： PURPOSE:An apparatus for polycondensation which is designed to keep the residence time of the reaction liquid constant and prevent the degradation of product quality with the help of agitating blades which are attached to the shaft radially in such a way as to make the respective phase angles advance at a uniform differential modulation from the inlet for the reaction liquid toward the outlet.

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