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1. 发明专利

JPS57170734A METHOD AND APPARATUS FOR MOLDING RIM URETHANE IN CENTER INJECTION SYSTEM 失效
公开(公告)号：JPS57170734A
公开(公告)日：1982-10-21
申请号：JP5556481
申请日：1981-04-15
申请人： HITACHI LTD
发明人： HOSOE YOSHIHISA , HIRAMATSU HIROMICHI , KANEKO HIROSHI , TSUZUKI SUSUMU , HIYOSHI YASUO , KOUYA KENICHI , GOTOU MASAO , YOKONO ATARU
IPC分类号： B29C45/46 , B29C33/00 , B29C37/00 , B29C43/00 , B29C45/00 , B29C45/76 , B29C67/24
摘要： PURPOSE:To obtain a molding with high dimensional and superficial precision by a method wherein an after-mixer mold consisting of an upper and a lower molds is provided on the upper surface of an upper mold and raw liquid is supplied from the middle into a mold cavity through a mixer head and the after-mixer. CONSTITUTION:The plunger 11 of a mold controlling mechanism 10 is set at the 1st position according to the display of a sensor 13 and the primary liquid is supplied from the upper part in the middle of the mold cavity 8 through the mixer head 3 formed on the upper mold 4 of the aftermixer, the after-mixer 20 formed on the lower mold 5 of the after-mixer and an injecting gate 7. Subsequently, the plunger 11 is set at the 2nd position, an air vent 12 equipped on the upper mold 4 and the cavity 8 are connected through the gate 7 and gas generated in the cavity 8 is exhausted from an air vent 30. After then, the plunger 11 is set at the 3rd position, the molding is filled with packing and part of the molding is restrained from leaking from the cavity 8 into the gate 7 and after a preset mold releasing time the molds are opened to take out the molding.

2. 发明专利

JPS5775840A Injection molding method causing liquid reaction 失效
标题翻译：注射成型方法引起液体反应
公开(公告)号：JPS5775840A
公开(公告)日：1982-05-12
申请号：JP15209080
申请日：1980-10-31
申请人： Hitachi Ltd
发明人： HIYOSHI YASUO , ISOGAI TOKIO , KANEDA AIZOU , YOKONO ATARU , GOTOU MASAO , AOKI MASAYOSHI , TSUZUKI SUSUMU , KOUYA KENICHI , IIDA MAKOTO , NAKAMURA SHIYOUZOU
IPC分类号： B29C45/57 , B29B7/76 , B29C43/00 , B29C44/42 , B29C45/00 , B29C67/24 , B29K105/14
CPC分类号： B29B7/7621 , B29B7/7663 , B29C44/42 , B29C67/246
摘要： PURPOSE:To reliably and inexpensively mold foamed product with no defects in its external appearance and internal structure by a method wherein plural kinds of liquids raw waterials are poured into a mold cavity and then gas is introduced under pressure to expand and curefy, in an injection molding method causing a liquid reaction. CONSTITUTION:A mixing head 8 provided with a gas supply port 16 and a gas exhaust port 17 is employed. With a piston 15 located on the right side, liquid raw materials A, B flow into the head through right pipes, pass through passages formed in the piston 15 and then discharged therefrom through left pipes, thus circulated separately. When working oil 12 is sucked to move the piston 15 leftward, the liquid raw materials A, B are mixed with each other. Subsequest movement of the piston 15 in the rightward direction causes a predetermined amount of the mixed liquid raw material to be fed into a mold cavity. Thereafter, a valve for the gas supply port 16 is opened to introduce gas 18 into the cavity, so that the mixed liquid raw materials are formed and solidified while filling up the cavity. Then, a valve for the gas exhaust port 17 is opened to discharge the excess of the gas 18, so that solidification is completed and foamed products are obtained.
摘要翻译：目的：通过将多种液体原料倒入模腔中，然后在压力下引入气体进行膨胀和固化的方法，以可注射和低成本地模制发泡产品的外观和内部结构的缺陷，造成液体反应的成型方法。构成：采用设有气体供给口16和排气口17的混合头8。当活塞15位于右侧时，液体原料A，B通过右管道流入头部，穿过形成在活塞15中的通道，然后通过左管排出，从而分开循环。当工作油12被吸入以使活塞15向左移动时，液体原料A，B彼此混合。活塞15沿向右的顺序运动使预定量的混合液体原料进料到模腔中。此后，打开用于气体供给口16的阀，将气体18引入空腔，从而在填充空腔的同时形成并固化混合液体原料。然后，打开用于排气口17的阀，以排出多余的气体18，使得固化完成并获得发泡产品。

3. 发明专利

JPS5772840A Mold for reactive injection molding 失效
标题翻译：用于反应注射成型的模具
公开(公告)号：JPS5772840A
公开(公告)日：1982-05-07
申请号：JP14889080
申请日：1980-10-25
申请人： Hitachi Ltd
发明人： KOUYA KENICHI , NAKAMURA SHIYOUZOU , GOTOU MASAO , YOKONO ATARU
IPC分类号： B29C45/00 , B29B13/00 , B29C33/00 , B29C33/42 , B29C39/00 , B29C39/02 , B29C39/24 , B29C39/26 , B29C43/00 , B29C45/26 , B29C45/27 , B29C67/24 , B29K105/04
CPC分类号： B29C33/0061 , B29C67/246
摘要： PURPOSE:To facilitate and simplify alteration of a gate shape or a gate size for improving molding inferiority of attaching a replaceable bar for an auxiliary gate to an auxiliary gate part provided between a gate and a mold cavity. CONSTITUTION:A groove type auxiliary gate is provided between a gate 9 and a mold cavity 11 and a bar 6 for an auxiliary gate with an appropriate cross area shape is attached to said ausiliary gate part 10 by a screw 6c. When a step part is present in the mold cavity, the bar (shallow at 6a and deep at 6b) for the auxiliary gate having a step part corresponding to that of said mold cavity may be used. When non-filling of a resin or the like, so called molding inferiority is generated, it is not necessary to exchange a metal mold entirely and, because only a shape and a size of the bar 6 for the auxiliary gate is altered, molding inferiority can be easily improved.
摘要翻译：目的：为了简化和简化门形状或门尺寸的改变，以改善将辅助浇口的可更换杆附接到设置在浇口和模具腔之间的辅助浇口部分的模塑不良。构成：在门9和模具腔11之间设置槽型辅助浇口，用于具有适当横截面形状的辅助浇口的杆6通过螺钉6c附接到所述远端浇口部分10。当模具腔中存在台阶部件时，可以使用具有对应于所述模腔的台阶部分的辅助浇口的杆（在6a处为浅的和深的6b）。当不填充树脂等时，产生所谓的成型劣化，不需要完全更换金属模具，并且由于只有辅助浇口的杆6的形状和尺寸改变，所以模塑不良可以轻松改善。

4. 发明专利

JPS5769027A Method of controlling removing time from mold in rim molding and apparatus therefor 失效
标题翻译：控制RIM模具中模具移除时间的方法及其设备
公开(公告)号：JPS5769027A
公开(公告)日：1982-04-27
申请号：JP14366380
申请日：1980-10-16
申请人： Hitachi Ltd
发明人： NAKAMURA SHIYOUZOU , GOTOU MASAO , YOKONO ATARU , KOUYA KENICHI , TANI SEIJIROU
IPC分类号： B29C45/78 , B29C43/00 , B29C45/26 , B29C67/24
CPC分类号： B29C44/60 , B29C67/246 , B29C2037/90 , B29K2075/00 , B29K2105/04
摘要： PURPOSE:To make it possible to determine rationally the removing time of a product from molds, to improve the molding efficiency, and to prevent defects on the molded product, by opening the molds when the detected values of the elevated temperature and the foaming pressure of the molding material in the cavity. CONSTITUTION:A polyol and an isocyanate are filled in the cavity 4, and the elevated temperature and the foaming pressure are detected by a temperature sensor 17 and a pressure sensor 18. As the time has passed, the temperature 23 and the pressure 24 reach the maximum value Tmax and the mazimum value Pmax, then fall, and when they have reached predetermined elevated temperature T1 and foaming pressure P1, a mold opening and closing apparatus 22 is actuated to open the molds 2A, 3A, and the molded product is removed from the molds.
摘要翻译：目的：为了有效地确定产品从模具中去除时间，提高成型效率，并防止成型产品的缺陷，当检测到的高温和发泡压力值通过打开模具空腔中的成型材料。构成：将多元醇和异氰酸酯填充到空腔4中，通过温度传感器17和压力传感器18检测高温和发泡压力。随着时间的流逝，温度23和压力24达到最大值Tmax和最大值Pmax，然后下降，并且当它们达到预定的升高温度T1和发泡压力P1时，致动模具打开和关闭装置22以打开模具2A，3A，并且将模制产品从模具。

5. 发明专利

JPS5586691A BONDING METHOD OF COPPER PIPE AND ALUMINUM PIPE 失效
公开(公告)号：JPS5586691A
公开(公告)日：1980-06-30
申请号：JP15747178
申请日：1978-12-22
申请人： HITACHI LTD
发明人： KOUYA KENICHI , TERABAYASHI TAKAO , KAMATA MITSUNARI , KOBAYASHI MASARU , WAKABAYASHI YOUICHI , OCHIAI IZUMI
IPC分类号： B23K20/12 , B23K1/00 , B23K1/06 , B23K103/20
摘要： PURPOSE:To bond copper pipe and Al pipe in a short time without forming any brittle intermetallic compound at the boundary of the bonded part by inserting the beveled part of the solder-plated copper pipe into the Al pipe and applying ironing thereto while expanding the pipe then friction-pressure-welding the pipes. CONSTITUTION:An Al pipe 2 fixed with a pipe holder 5 with a ring holder and a heat-insulating ring 4 whose inside surface is tapered is fixed by the pipe holder 5. When the pipe holder 5 fixing the Al pipe 2 moves and the copper pipe 1 which is revolving at a high speed and the Al pipe 2 make contact, then the Al pipe 2 is expanded by the solder-plated beveled part of the copper pipe 1. Further, the Al pipe 2 is ironed by the tapered surface of the heat-insulating ring 4 and the beveled part of the copper pipe to generate friction heat and at the same time the inside of Al becomes clean. The solder plating 3 of the beveled part of the copper pipe 1 is fused by friction heat. The revolution of the copper pipe 1 is stopped and upset force is loaded to the bond part, whereby the beveled part of the copper pipe 1 and the inside circumferential surface of the Al pipe 2 are bonded.

6. 发明专利

JPS57100041A REACTION INJECTION MOLDING METHOD 失效
公开(公告)号：JPS57100041A
公开(公告)日：1982-06-22
申请号：JP17582280
申请日：1980-12-15
申请人： HITACHI LTD
发明人： GOTOU MASAO , KOUYA KENICHI , NAKAMURA SHIYOUZOU , YOKONO ATARU , IIDA MAKOTO , TSUZUKI SUSUMU
IPC分类号： B29C45/78 , B29C35/00 , B29C39/38 , B29C43/00 , B29C45/00 , B29C45/26 , B29C67/24
摘要： PURPOSE:To control the thickness of a skin layer and the foaming density artificially and shorten the molding time at the same time, by injecting the reaction liquid into the mold kept warm at a certain temperature, making it to react and harden and then at once cooling said mold rapidly. CONSTITUTION:A mold 11 is kept warm by delivering hot water to the mold 11 from a hot water tank 2. Then, the two-part liquid type reactive resin material is injected (RIM) into the mold 11, made to react and harden, thereafter delivery of hot water is stopped, cold water is delivered to the mold 11 from the cold water tank 5 and the mold 11 is cooled rapidly. Because the mold kept warm at a certain temperature is cooled rapidly in a short time, the thickness of a skin layer and the foaming density can be controlled artificially and also the molding time from foaming to cooling, hardening can be shortened.

7. 发明专利

JPS56164830A MOLD FOR SANDWICH STRUCTURE BODY 失效
公开(公告)号：JPS56164830A
公开(公告)日：1981-12-18
申请号：JP6888980
申请日：1980-05-26
申请人： HITACHI LTD
发明人： GOTOU MASAO , NAKAMURA SHIYOUZOU , KOUYA KENICHI , YOKONO ATARU , AOKI MASAYOSHI , SHIBATA KATSUO , NAKA REIJI
IPC分类号： B32B5/18 , B29B7/00 , B29B13/00 , B29C33/00 , B29C33/02 , B29C33/04 , B29C39/00 , B29C39/12 , B29C39/26 , B29C39/38 , B29C44/04 , B29C45/73
摘要： PURPOSE:To produce a skin layer having a desired thickness at a desired part of a molded article and thereby enhance the strength of the molded body by a method wherein a mold body forming a mold cavity is provided with a cooling hole for passing a coolant therethrough at a part of the mold body corresponding to the part of the article to be enhanced in strength. CONSTITUTION:The cooling hole 7 is provided at a corner part 5b of an upper mold 5A having holes 8 for temperature regulation in the proximity of the mold cavity 4. Two kinds of stock solutions are poured into the cavity 4 formed by the upper mold 5A and a lower mold 6. Before the stock solutions are solidified through reacting with each other to form the sandwich structure body 1A, the coolant cooled to a temperature of -5-+10 deg.C is circulated through the cooling hole 7 to cool the stock solution in the proximity to the hole 7, thereby producing the skin layer 2b having a high density and the desired thickness.

8. 发明专利

JPS5577988A FRICTION PRESSURE WELDING METHOD OF COPPER PIPE AND ALUMINUM PIPE 失效
公开(公告)号：JPS5577988A
公开(公告)日：1980-06-12
申请号：JP15207978
申请日：1978-12-11
申请人： HITACHI LTD
发明人： TERABAYASHI TAKAO , KOUYA KENICHI , KAMATA MITSUNARI , KOBAYASHI MASARU , WAKABAYASHI YOUICHI , OCHIAI IZUMI
IPC分类号： B23K20/12 , B29C65/06
摘要： PURPOSE:To perform friction pressure welding of thin wall, small diameter pipes at high workability, by rotating a copper pipe of which end face inside is chamfered at high speed, and pressing a stationary Al pipe of which outer circumference is made adiabatic thereto to bond together. CONSTITUTION:A copper pipe 1 of which end face inside is chamfered, and an Al pipe 2 are fitted on chucks 3. A ceramic restraining ring 4 is fitted to the outer circumference of the Al pipe 2, and this ring 4 is secured to the ring holder 5 by means of a cap 6. In this state, the copper pipe 1 is rotated at high speed, and the Al pipe 2 is pressed thereto. By this pressing, the both pipes are heated within the restraining ring 4 due to frictional heat, and this heat is maintained, so that the junction boundary of the both pipe bodies is sufficiently heated. Also, the centers of the pipes will not be deviated because of the restraining ring which works as guide. In this state, on the moment reaching to a temperature allowing joining, the rotation is stopped suddenly while maintaining the pressing force, and the pipes are cooled in air. Then, by removing burrs from the pipe inside, a joint pipe is obtained.

9. 发明专利

JPS5575890A FRICTION PRESSURE WELDING METHOD OF COPPER PIPE AND ALUMINUM PIPE 失效
公开(公告)号：JPS5575890A
公开(公告)日：1980-06-07
申请号：JP14788578
申请日：1978-12-01
申请人： HITACHI LTD
发明人： KOUYA KENICHI , TERABAYASHI TAKAO
IPC分类号： B23K20/12 , B23K103/10 , B23K103/12
摘要： PURPOSE:To perform friction pressure welding effectively by subjecting the faying part of an aluminum pipe to high frequency induction heating and letting a copper pipe revolve at a high speed and allowing the same to make friction with the end face of the aluminum pipe then stopping the heating and revolving and pressure cooling these. CONSTITUTION:When the Al pipe 2 having been mounted by way of a pipe holder 4 to a stationary side chuck 7 is approached to the copper pipe 1 which has been mounted to a rotating side chuck 8 and is revolving at a high speed, first a core metal 3 is inserted into the bore of the copper pipe. Thence, the end face of the copper pipe 1 and the end face of the Al pipe 2 make contact with each other to cause friction. Here, the Al pipe 2 is heated by a high frequency coil 10 through the pipe holder 4 and therefore the insufficient portion of friction heat is made up. At the same time, the deformation resistance of the Al pipe 2 becomes lower and since the core metal 3 is held inserted, the clatter and vibrations at the initial period of friction do not occur. Thence, the revolution of the copper pipe 1 and the heating of the heating coil 10 are stopped after the specified time and an upset pressure is applied, whereby both pipes are bonded.

10. 发明专利

JPS54112762A JOINTING METHOD FOR METALLIC PIPES 失效
公开(公告)号：JPS54112762A
公开(公告)日：1979-09-03
申请号：JP1979878
申请日：1978-02-24
申请人： HITACHI LTD
发明人： TERABAYASHI TAKAO , MURAKAMI SUZUYA , KOUYA KENICHI
IPC分类号： F16L13/02 , B23K20/12
摘要： PURPOSE:To make easy the friction welding without necessity of shrinking mechanism for the ring diameter like as the conventional method, at the friction welding of thin walled metallic pipes, by revolving the ring, in which the inside of both end faces are chamfered at the same angle, between the fixed two pipes whose end faces are both cahmfered. CONSTITUTION:Two metallic pipes 1, 1', whose end faces are both chamfered, are respectively held by chucks 2, 2'; a ring 3 being chamfered at the same angle as pipes 1, 1', is arranged on the chamfered outer circumference of pipes 1, 1'; and this ring 3 is revolved at a fast speed. A core metal 4, whose outside diameter is a little smaller than the inside diameter of the pipe, is inserted into pipes 1, 1'. Under this condition, pipes 1, 1', are moved together with chucks 2, 2', face to face, so as to thrust the revolving ring 3; as a result, materials are molten due to the friction heat. At this moment, the ring 3 is suddenly stopped, and the thrusting is continued unitl the temperature goes down; hereby, a jointed pipe is obtained. The core metal 4 is to prevent the burr generated while thrusting continues; however, a high strength insulating material is desirable for core metal 4 for preventing the radiation of the friction heat.

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