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1. 发明专利

JP2005088016A Composite sleeve for die casting machine 审中-公开
标题翻译：复合型套管机
公开(公告)号：JP2005088016A
公开(公告)日：2005-04-07
申请号：JP2003321489
申请日：2003-09-12
申请人： Kubota Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社クボタ
发明人： GAMA TAKAHIRO , MIHASHI TAKESHI , NUKAMI TETSUYA , KAMEDA HIROYUKI , DOBASHI AKIRA , KUBOTA TETSUO , KAWAI HIROSHI
IPC分类号： B22D17/20 , C04B37/02
摘要： PROBLEM TO BE SOLVED: To enhance erosion resistance and wear resistance of a sleeve for a die cast machine and obtain an improved service life of the sleeve, by applying ceramics to the sleeve.
SOLUTION: The sleeve has a front cylindrical body (10) and a rear cylindrical body (20B) connected to the rear end side of the front cylindrical body. The rear cylindrical body (20B) consists of a multilayered cylindrical body (23), which is formed by shrink-fitting a ceramic inner cylinder (22) to the inside of an outer cylinder (21) made of a low thermal expansive material, and a holding cylinder (24), which surrounds the multilayered cylindrical body (23). A thermal expansion coefficient of the low thermal expansive material is 5-7×10
-6 /°C in the range from ordinary temperature to 600°C. A thermal expansion coefficient difference between the low thermal expansive material and the ceramics is 2-4.5×10
-6 /°C in the range from an ordinary temperature to 600°C. The boundary face between the multilayered cylindrical body (23) and the holding cylinder (24) has a gap (25). The front cylindrical body (10) and the rear cylindrical body (20B) are connected in a manner that an annular projection (10p) of the front cylindrical body (10) and an annular projection (21p) of the rear cylindrical body (20B) are connected with screws. The holding cylinder (24) may be omitted so that the multilayered cylindrical body (23) is, as a rear cylindrical body (20B), connected to the front cylindrical body (10).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提高压铸机的套筒的耐冲击性和耐磨性，并通过将陶瓷应用于套筒而获得套筒的使用寿命。解决方案：套筒具有连接到前筒体的后端侧的前筒体（10）和后筒体（20B）。后筒体（20B）由通过将陶瓷内筒（22）收缩配置到由低热膨胀材料制成的外筒（21）的内部而形成的多层圆柱体（23），以及围绕多层圆柱体（23）的保持筒（24）。低热膨胀材料的热膨胀系数在常温至600℃的范围内为5-7×10 -6 /℃。低温膨胀材料与陶瓷之间的热膨胀系数差在常温至600℃的范围内为2-4.5×10 -6 /℃。多层圆柱体（23）和保持筒（24）之间的边界面具有间隙（25）。前筒体（10）和后筒体（20B）以前筒体（10）的环状突起（10p）和后筒体（20B）的环状突起（21p）的方式连接，用螺丝连接。可以省略保持筒（24），使得多层圆筒体（23）作为后筒体（20B）连接到前筒体（10）。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JPH1143727A GRAVITY CASTING PROCESS 失效
公开(公告)号：JPH1143727A
公开(公告)日：1999-02-16
申请号：JP19613297
申请日：1997-07-22
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , OKOCHI YUKIO
IPC分类号： B22D19/14 , B22F3/26 , C22C1/00 , C22C47/00 , C22C1/09
摘要： PROBLEM TO BE SOLVED: To provide a gravity casting process capable of producing the getter effect of Ti even at a casting temp. lower than the activation temp. (about 750 deg.C) of Ti and impregnating a powder compact with molten metal under gravity. SOLUTION: A compact, which is composed of an Al or Al-base alloy powder, a Ti powder, and 0.05-30 vol.% of a powder of a reactant causing exothermic reaction with Al at a temp. lower than the activation temp. of Ti for dexidizing and denitriding reaction, is impregnated with molten metal or molten alloy under gravity. As the reactant, Ni, Cu, Ag, etc., can be used. Light metals, such as Al and Mg, and light alloys are representatives of the molten metal or alloy to be impregnated. Generally, alloys, such as light alloys, can be produced by this gravity casting process, and particularly, a dispersion-strengthened- type metal matrix composite can be produced by further adding a reinforcement into the compact.

3. 发明专利

JPH0656599A PRODUCTION OF TIC WHISKER 失效
公开(公告)号：JPH0656599A
公开(公告)日：1994-03-01
申请号：JP23138492
申请日：1992-08-06
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA
IPC分类号： C30B29/62
摘要： PURPOSE:To produce extremely high TiC whiskers having

4. 发明专利

JPH0617180A HIGH STRENGTH ALUMINUM ALLOY 失效
公开(公告)号：JPH0617180A
公开(公告)日：1994-01-25
申请号：JP17702292
申请日：1992-07-03
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA
IPC分类号： C22C21/06
摘要： PURPOSE:To provide a high strength A1 alloy more excellent in strength at ordinary temp. and strength at high temp. than a conventional A1 alloy. CONSTITUTION:An A1 alloy consisting of, by weight, 3- =0.5% Cu and >=0.5% Ni, >2-4% Mg and the balance A1 with inevitable impurities of further contg. 0.4-0.8% Mu and/or >0.2-0.6% Fe is age-hardened after soln. heat treatment or the balance of the Cu, Ni and Mg contents is regulated and Mu and Fe are incorporated to provide the objective A1 alloy excellent is strength at ordinary temp. and strength at high temp.

5. 发明专利

JPH05337631A 失效
公开(公告)号：JPH05337631A
公开(公告)日：1993-12-21
申请号：JP17737392
申请日：1992-06-11
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA
IPC分类号： B22D19/14 , C22C1/10 , C22C47/00 , C22C1/09
摘要： PURPOSE:To efficiently manufacture a casting inserting the metal base composite into light alloy in good condition at low cost. CONSTITUTION:This method is the one inserting the metal base composite 14 having pure Al or the light metal mainly containing Al in the matrix 12 in the light alloy and the metal base composite 14 as the material to be inserted is heated at high temp. to melt the matrix 12 and thereafter, the composite is inserted into molten light alloy 22 of Al alloy, etc., containing >=1wt.% Mg.

6. 发明专利

JPH04165032A ALUMINA-BORIA WHISKER REINFORCED AL BASE COMPOSITE 失效
公开(公告)号：JPH04165032A
公开(公告)日：1992-06-10
申请号：JP28803790
申请日：1990-10-25
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA , OKOCHI YUKIO
IPC分类号： C22C49/00 , C22C47/00 , C22C49/06
摘要： PURPOSE:To make an Al base composite high strength by using alumina-boria whisker as strengthening material and Mg-containing Al alloy or pure Al as matrix. CONSTITUTION:The alumina-boria whisker 10 is charged into distilled water 12, and after stirring with propellers 14, this is shifted into a forming jig and compacted. The obtd. formed body is charged into a freezing chamber. Water in the formed body is frozen. This formed body 20 is packed into a case 18 made of stainless steel, etc., and heated together with the case 18 to dry the formed body. The formed body 20 is set in a mold 24 in a high pressure casting device 22 together with the case 18. Into the mold 24, molten metal 26 of the Al alloy containing 0.75wt.% Mg or the pure Al, is poured and pressurized with a plunger 28 and solidified. As necessary, the obtd. composite is heat treated. By this method, reaction between B2O3 in the whisker and Mg in the matrix, is reduced, and the development of spinel layer and lowering of strength of the whisker are restrained.

7. 发明专利

JPH0327859A PRODUCTION OF FIBER REINFORCED COMPOSITE METALLIC MATERIAL 失效
公开(公告)号：JPH0327859A
公开(公告)日：1991-02-06
申请号：JP16322289
申请日：1989-06-26
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA , KUBO MASAHIRO
IPC分类号： B22D17/00 , C22C47/00 , C22C47/08 , C22C47/12
摘要： PURPOSE:To improve productivity by forming a fiber molding in which short fibers are two-dimensionally and randomly disposed, disposing the molding in a die in such a manner that the plane of orientation parallels the flow direction of a molten metal and impregnating the molten metal therein at a specific permeation rate. CONSTITUTION:Short alumina silica fibers are suction-molded to form the molding 14 in which the individual short fibers 10 are two-dimensionally randomly disposed parallel with the plane 12 of orientation. The molding 14 is pre-heated and disposed into the cavity 20 of the die 18 for die casting in such a manner that the plane 12 of orientation parallels the flow direction ot the molten metal. The molten metal is then injected at 0.3 to 3m/sec permeation rate. The setting of the high permeation rate of the molten metal is possible and the time to the completion of combining is shortened. The productivity of the composite material is thus improved.

8. 发明专利

JPH01306533A PRODUCTION OF COMPOSITE MATERIAL OF INTERMETALLIC COMPOUND 失效
公开(公告)号：JPH01306533A
公开(公告)日：1989-12-11
申请号：JP13869788
申请日：1988-06-06
申请人： TOYOTA MOTOR CORP
发明人： KAJIKAWA YOSHIAKI , SUGANUMA TETSUYA , TANAKA ATSUO , MORIKAWA TAKASHI , KUBO MASAHIRO , NUKAMI TETSUYA
IPC分类号： C22C47/08 , C22C1/10
摘要： PURPOSE:To efficiently produce the good composite material which is an intermetallic compd. by bringing a molding contg. an inorg. reinforcing material, metal forming the intermetallic compd. with Al, and the fine pieces of metal fluoride into contact with molten Al, thereby penetrating the molten Al therein. CONSTITUTION:Ni-plated carbon fibers 10 and Ni fibers 12 are oriented unidirectionally in the state of mixing the same substantially uniformly with each other into a stainless steel case 14 in such a manner that the respective volume ratios attain about 38% and about 43% and a columnar molding 16 is formed. This molding 16 is immersed together with the case 14 into an aq. K2ZrF6 soln. 18 of about 13g/100cc concn. and about 90 deg.C; thereafter, the molding is heated together with the case 14 to about 150 deg.C and is sufficiently dried to deposit the crystals of K2ZrF6 finely on the surfaces of the individual fibers. This molding 16 is then preheated by heating the same for 10 minutes at about 200 deg.C and is immersed together with the case 14 for about 2 minutes in the pure molten Al 20 kept at about 750 deg.C. The molding is taken out of the molten metal and the molten metal 20 is allowed to solidify as it is. The good composite material is thereby obtd. at a low cost without pressurizing the molten metal 20 and without preheating the reinforcing material 10.

9. 发明专利

JPH01306531A PRODUCTION OF INTERMETALLIC COMPOUND 失效
公开(公告)号：JPH01306531A
公开(公告)日：1989-12-11
申请号：JP13869688
申请日：1988-06-06
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , KAJIKAWA YOSHIAKI , SUGANUMA TETSUYA , MORIKAWA TAKASHI , TANAKA ATSUO , KUBO MASAHIRO
IPC分类号： C22C1/02 , C22C1/00
摘要： PURPOSE:To efficiently produce the intermetallic compd. at a low cost by forming a molding contg. metallic fibers forming the intermetallic compd. with Al and the fine pieces of metal fluoride and bringing molten Al into contact with this molding. CONSTITUTION:Ni fibers 10 are oriented unidirectionally to have about 74% volume rate and are packed into a stainless steel case 12 opened at both ends and a rectangular parallelepiped-shaped molding 14 is formed. This molding 14 is immersed together with the case 12 into an aq. K2ZrF6 soln. 16 of about 10% concn. and about 90 deg.C temp. and thereafter, the molding 14 is heated to about 150 deg.C together with the case 12 and is sufficiently dried to deposit the crystals of K2ZrF6 finely on the surfaces of the Ni fibers. After this molding 14 is immersed together with the case 12 in the pure molten Al 18, the molding is taken out and the molten metal 18 is solidified in this state. The intermetallic compd. is easily obtd. in this way without pressurizing the molten metal 18 or preheating the fibers 10, etc.

10. 发明专利

JPH08333645A AL-MATRIX COMPOSITE MATERIAL EXCELLENT IN ADHESION RESISTANCE AND ITS PRODUCTION 失效
公开(公告)号：JPH08333645A
公开(公告)日：1996-12-17
申请号：JP13974095
申请日：1995-06-06
申请人： TOYOTA MOTOR CORP
发明人： NUKAMI TETSUYA , SUGANUMA TETSUYA , OKOCHI YUKIO
IPC分类号： C22C47/08 , B22F3/26 , C22C21/02 , C22C1/09
摘要： PURPOSE: To provide an Al-matrix composite material excellent in adhesion resistance and suitable for production of a wear resistant annular part by incorporating specific amounts of primary-crystal Si grains and eutectic Si grains, having fine grain sizes, into an Al type matrix. CONSTITUTION: The Al-matrix composite material is formed by incorporating primary-crystal Si grains and eutectic Si grains, having

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