专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

111. 发明专利

JP2001031746A PRODUCTION OF POLYLACTIC ACID 失效
公开(公告)号：JP2001031746A
公开(公告)日：2001-02-06
申请号：JP20744299
申请日：1999-07-22
申请人： JAPAN STEEL WORKS LTD
发明人： KOYANAGI KUNIHIKO , SUMIHIRO YUKIHIRO , FUKUSHIMA TAKESHI
IPC分类号： C08G63/06
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a polylactic acid having a high molecular weight in a high yield. SOLUTION: The method for producing a polylactic acid by a polycondensation reaction of lactic acid in a reaction vessel equipped with a reflux system 6 is characterized in that water generated by the condensation reaction is dissipated and lactide is returned to the reaction vessel 1 by adjusting flow velocity adjusting means 11 disposed between a reflux system 6 and a reaction vessel 1 and by keeping height of a gas-liquid counter flow contact phase in the reflux system during condensation.

112. 发明专利

JP2001030358A MOLDING METHOD AND APPARATUS BY BONDING OF HOLLOW MOLDED ARTICLE, AND HOLLOW MOLDED ARTICLE TO BE PRODUCED BY THE MOLDING METHOD 失效
公开(公告)号：JP2001030358A
公开(公告)日：2001-02-06
申请号：JP21124999
申请日：1999-07-26
申请人： JAPAN STEEL WORKS LTD
发明人： NISHIDA SHOZO
IPC分类号： B29C65/02
摘要： PROBLEM TO BE SOLVED: To obtain a hollow molded article by one injection process using a structure similar to a general-purpose mold without using a secondary molding sprue. SOLUTION: The bonding parts 9, 10 of a pair of semi-molded articles 1, 3 having bonding parts 9, 10 provided at the outer peripheral edge parts thereof are abutted mutually and bonded. In this case, either one of or both of the bonding parts 9, 10 are set to wall thickness of such a degree that the bonding parts 9, 10 are not internally solidified within a predetermined time range and both bonding parts 9, 10 of a pair of the semi-molded articles 1, 3 are welded and bonded when abutted mutually.

113. 发明专利

JP2001030298A METHOD AND APPARATUS FOR PREHEATING RAW MATERIAL FOR INJECTION MOLDING MACHINE 失效
公开(公告)号：JP2001030298A
公开(公告)日：2001-02-06
申请号：JP20270699
申请日：1999-07-16
申请人： JAPAN STEEL WORKS LTD
发明人： YAMAGUCHI TAKESHI
IPC分类号： B29C45/18 , B22D17/20 , B22D17/30
摘要： PROBLEM TO BE SOLVED: To maintain a temperature of a metal raw material of one shot of injecting suitably in a heating cylinder without enhancing capability of a heater by changing a temperature of the material before charging to meet that at a charging time when charging the material of the one shot in the cylinder. SOLUTION: A screw 1 of a metal injection molding machine is rotatably and longitudinally movably contained in a heating cylinder 7, and a raw material heater 12 having a raw material preheating cylinder 5 is installed above a feeder 6 mounted at a raw material inlet 3 of the cylinder 1. The heater 12 has two heating control zones above and below, and preheating heaters 10A, 10B and a temperature detector 11 are provided in the respective zones. A metal material 2 before charging in the cylinder 7 is supplied by each one shot of injecting to the cylinder 5, and preheated at each one shot in the cylinder 5. In this case, the charged amounts of each one shot are not uniformly heated, but controlled to change the heating temperature according to a charging time.

114. 发明专利

JP2001029735A METHOD FOR EVALUATING BACTERIAL ACTIVITY IN MICROBIAL DEODORIZING APPARATUS, MICROBIAL DEODORIZING APPARATUS AND OPERATION METHOD THEREOF 失效
公开(公告)号：JP2001029735A
公开(公告)日：2001-02-06
申请号：JP20635099
申请日：1999-07-21
申请人： MAZDA MOTOR , JAPAN STEEL WORKS LTD
发明人： NAGAHAMA HIROSHI , NAGAO KATSUMI , KUNOKI SUKENORI , OGASAWARA MAKI , ONO AKIO
IPC分类号： B01D53/38 , B01D53/18 , B01D53/34 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To keep the capacity of a deodorizing apparatus well by facilitating the control thereof. SOLUTION: In a microbial deodorizing apparatus circulating water to deodorizing tanks A, B to sprinkle the same to perform deodorizing treatment, the pH of recovered water is measured by activity evaluating devices 9, 19 in water tanks 6, 16 and, from the relation of the measured pHs with preliminarily calculated pH and bacterial activity, the microbial activities in the deodorizing tanks A, B are evaluated. By this constitution, the microbial activities of the deodorizing tanks can be easily evaluated and the maintenance and control of the deodorizing apparatus become easy and the efficiency of the deodorizing apparatus is easily held to a high state.

115. 发明专利

JP2001018264A MOLD HAVING SYNTHETIC RESIN RUNNER PULL-BACK STRUCTURE 失效
公开(公告)号：JP2001018264A
公开(公告)日：2001-01-23
申请号：JP19776599
申请日：1999-07-12
申请人： JAPAN STEEL WORKS LTD
发明人： NISHIDA SHOZO
IPC分类号： B29C45/38
摘要： PROBLEM TO BE SOLVED: To provide the mold capable of easily molding a synthetic resin low in hardness which has been impossible by a conventional cold runner. SOLUTION: A part of a mold to which a runner 3 faces is constituted of a runner slide block 11 sliding in a mold opening direction corresponding to a mold opening process and separated from the runner in the periphery of the runner part of the mold. Since the slide block 11 is slid by the slip resistance of the runner 3 to slip out along with the runner 3, the runner 3 can be pulled out without being torn by a runner lock pin 5.

116. 发明专利

JP2001001400A METHOD FOR STARTING STRETCHING OPERATION OF TUBULAR FILM 失效
公开(公告)号：JP2001001400A
公开(公告)日：2001-01-09
申请号：JP17183099
申请日：1999-06-18
申请人： JAPAN STEEL WORKS LTD
发明人： MIYAUCHI NAOTAKA
IPC分类号： B29C55/26
摘要： PROBLEM TO BE SOLVED: To reduce the number of operators and to eliminate unevenness due to a personal difference by stretching a tubular film at one side held at a low- speed take-off unit at the other held at a high-speed take-off unit, supplying a pressure gas into the film when arrived at a predetermined heatable state, and starting expanding of the film when the supply of the gas is finished. SOLUTION: After a tubular film 1 is annularly extruded from an extruder, an end of the water-cooled film 1 is inserted from a low-speed take-off unit 2 side, the film 1 is manually held at one side to the unit 2 and at the other side to a high-speed take-off unit 3, and started to be stretched. A detecting step I of detecting whether the film 1 is heatable or not to a stretchable temperature by a temperature detecting means 6, an initializing step II of exhausting a pressure gas from an end 20a of a gas supply tube 20 into the film 1, an intermediate step II of driving the units 2, 3 at a third speed, a stable step IV of driving the units at a second speed, and a gas supply ending step V of finishing filling the pressure gas are sequentially automatically conducted. Thus, the number of operators of starting the stretching can be reduced and unevenness due to a personal difference can be eliminated.

117. 发明专利

JP2001001147A TIG WELDING TORCH AND LINING METHOD IN SMALL HOLE USING THE TORCH 失效
公开(公告)号：JP2001001147A
公开(公告)日：2001-01-09
申请号：JP17509999
申请日：1999-06-22
申请人： JAPAN STEEL WORKS LTD
发明人： KAYANO RINZO , NITTA YUKIO , SANNOMIYA SETSUO , SHIBATA TAKASHI , KONDO SHIGERU
IPC分类号： B23K9/16
摘要： PROBLEM TO BE SOLVED: To provide a TIG welding torch which enables cladding by welding in a small diameter hole is. SOLUTION: An upper end of a torch head 2 is fixed to a tip part of an arm. When it is fixed, adjustment is made so that the axis of the torch head 2 and an extension direction of the arm may have an angle of 120-150 degree. And, an inert gas storage chamber 4 is provided in the torch head, and to the storage chamber, a gas feeding cylinder 9 extending to the axial direction of the torch head 2 is connected. Plural gas blowing ports 9a, 9b are formed in the gas feeding cylinder. Thereby, by setting fixing position and the angle of the torch head, downsizing of the torch can be made. A stable shielding by the inert gas can be made with the storage chamber and feeding cylinder, and the downsizing of the torch can be made without impairing weldability.

118. 发明专利

JP2000351140A PLASTICIZATION UNIT REMOVING GUIDE MECHANISM FOR VERTICAL INJECTION MOLDING MACHINE AND METHOD FOR REMOVING GUIDE 失效
公开(公告)号：JP2000351140A
公开(公告)日：2000-12-19
申请号：JP16608699
申请日：1999-06-11
申请人： JAPAN STEEL WORKS LTD
发明人： FUKUDA TATSUHIRO
IPC分类号： B29C45/17 , B29C45/47 , B29C45/58
摘要： PROBLEM TO BE SOLVED: To easily and safely perform removing of a plasticization unit and a driving unit and carrying-out and carrying-in works of the plasticization unit. SOLUTION: Below a fitting plate 16, a holding device 20 which can horizontally slide and move a plasticization unit 18 while it is held under a hung condition at a position between from the mechanically central position 10a of a vertical injection molding machine 10 to a separated position is provided and the holding device 20 is fitted to a screw driving device 14 in such a way that it integrally moves with this in the up and down direction and is removable to the screw driving device 14.

119. 发明专利

JP2000334733A STRAND CUTTING DEVICE WITH LOW NOISE 失效
公开(公告)号：JP2000334733A
公开(公告)日：2000-12-05
申请号：JP14749199
申请日：1999-05-27
申请人： JAPAN STEEL WORKS LTD
发明人： YOSHIDA MINORU , TAKADA YOSHINORI , TAMAKI YOSHITO
IPC分类号： B26D1/28 , B29B9/06
摘要： PROBLEM TO BE SOLVED: To provide a strand cutting device with low noise in which noise generated by a rotary blade body rotated at a high velocity is reduced. SOLUTION: The strand cutting device with low noise is equipped with a fixed blade body 2 having knife edges orthogonal to the progressing direction of a strand S, with a rotary blade body 3 which is stuck to the tip of a rotary shaft 13 parallel to the progressing direction of the strand S and also is raclially arranged with a plurality of blade plates 15 in the front face opposite to the fixed blade body 2 and with a cover 6 for catching cut pellets P and discharging the same to the outside of a machine. The nearly whole face of the cover 6 is covered with a noise insulating material 7. The cover 6 consists of a nearly funnel-shaped lower part case 4 and the hemicylindrical upper part case 5 covering the opening part of the lower part case 4. The center O1 of the upper part case 5 is made eccentric from the rotary axial center O2 of the rotary blade body 3 to the fixed blade body side. Thereby, the strand cutting device with low noise is constituted so that the interval between the inner peripheral face of the upper part case 5 and the imaginary outer peripheral circle of the rotary blade body 3 is gradually increased in the same direction as the direction of rotation and made maximum on the side of the fixed blade body 2.

120. 发明专利

JP2000334556A METHOD FOR CONTROLLING NOZZLE TEMPERATURE OF METAL INJECTION-FORMING MACHINE AND DEVICE THEREOF 失效
公开(公告)号：JP2000334556A
公开(公告)日：2000-12-05
申请号：JP14566699
申请日：1999-05-25
申请人： JAPAN STEEL WORKS LTD
发明人： SAKAMOTO RYUICHI , OSHITA JUNICHI
IPC分类号： B22D17/32 , B22D17/00 , B22D17/02 , B22D17/20 , B22F3/02
摘要： PROBLEM TO BE SOLVED: To control the temperature of a nozzle so that the casting pressure in a plug optimizes. SOLUTION: To a metal injection-forming machine, with which an incline screw system injection device 1 for injecting and melting a forming material with the rotation of a screw 5 arranged in a cylinder 8 and executing the injection and the nozzle 2 arranged at the tip part of the cylinder 8. The tip part of the nozzle 2 is in press-contact with a metallic mold when injecting, and the plug formed at the tip part in the nozzle 2 is ejected and removed with a prescribed injection pressure to injection-form the metallic forming material 12 into the metallic mold. Ejecting pressure of the plug is detected and the temp. setting value of the nozzle 2 is modified according to the ejecting pressure to execute the temp. control.

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