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1. 发明专利

JP2002105572A ALUMINUM ALLOY FOR DIECASTING, AUTOMOBILE SUBFRAME AND DIECASTING PROCESS ! Al-Mg-Si BASED Al ALLOY SHEET HAVING EXCELLENT BENDING WORKABILITY 失效
公开(公告)号：JP2002105572A
公开(公告)日：2002-04-10
申请号：JP2000293086
申请日：2000-09-26
申请人： RYOBI LTD , HONDA MOTOR CO LTD
发明人： KOMAZAKI TORU , SASAKI HIDETO , NISHI NAOMI , FUKUCHI FUMIAKI , MIKASA TETSUO , KUBO NOBUO , SUGIZAKI YASUAKI
IPC分类号： B62D21/00 , B22D17/00 , C22C21/02
摘要： PROBLEM TO BE SOLVED: To produce an Al alloy for diecasting which can be casted by a high pressure diecasting process, has sufficiently high strength and elongation even without performing T6 treatment after casting and can be used even in a corrosive environment, to provide a subframe produced by using the alloy and to provide a diecasting process for producing such a casting. SOLUTION: The Al alloy for diecasting for a subframe has a composition containing, by weight, 8.0 to 9.0% Si, 0.35 to 0.45% Mg, 0.3 to 0.4% Mn, 0.002 to 0.008% Be,

2. 发明专利

JPH06328190A POWDER PARTING MATERIAL FOR CASTING 失效
公开(公告)号：JPH06328190A
公开(公告)日：1994-11-29
申请号：JP14019493
申请日：1993-05-19
申请人： RYOBI LTD
发明人： WATANABE KAZUHIKO , SASAKI HIDETO , KOBASHI AKIO
IPC分类号： B22C3/00 , B22D17/20 , B22D27/18 , B29C33/60
摘要： PURPOSE:To adjust the deposition of a releasing agent according to temp. distribution of metallic molds and to adjust the kind of the releasing agent by mixing plural resin powders varying in m.p. and inorg. powders. CONSTITUTION:The powder releasing agent for casting is formed by mixing at least two kinds of the resin powders varying in m.p. and at least one kind of the inorg. powder. This releasing agent is applied on the metallic molds. The temp. rises in the metallic mold parts existing near sprues and the metallic mold parts corresponding to the thick parts of castings and, therefore, all the low-, middleand high-melting resin powders melt and becomes to a tacky adhesive state after adhesion. Only the low melting resin powder or the low- and middle-melting resins melt and become to the tacky adhesive state in the parts A where the mold metal temp. is relatively low but the tacky adhesive power thereof is low. The many inorg. powder sticks to the high-temp. parts C but the inorg. powders sticking to the low-temp. parts A are hot large in amt. Then, the seizure in the high-temp. parts by casting is prevented and the remaining of the parting material in the low temp. parts does not arise.

3. 发明专利

JPH0450126A GLASS ARTICLE HAVING TRANSPARENT LAYER ON SURFACE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0450126A
公开(公告)日：1992-02-19
申请号：JP15546390
申请日：1990-06-15
申请人： RYOBI LTD , UMEYA KAORU
发明人： UMEYA KAORU , WATANABE KAZUHIKO , KIYO KOKUSEN , SASAKI HIDETO
IPC分类号： B32B17/00 , B32B7/02 , C03B19/09
摘要： PURPOSE:To obtain a glass article having a transparent feeling and deepness in pattern, etc., by making glass of structure wherein a transparent glass layer is formed on the surface and a translucent or patterned glass layer fused to the glass layer is made under the transparent glass layer. CONSTITUTION:This glass article 1 is a glass article wherein a transparent glass layer 2 is formed on the surface and a translucent or patterned glass layer 3 fused to the glass layer is made under the transparent glass layer 2 and integrated. The glass article is obtained by the following method. Namely, translucent glass granules, powder, plate material or nonwoven fabric or glass granules, powder, plate material or nonwoven fabric to be translucent is packed into a refractory mold or glass granules, powder, plate material or nonwoven fabric having two or more different colors is filled into the mold so as to make a pattern, transparent glass granules, powder, plate material or nonwoven fabric is filled to the outside of the material to make a laminate, heated, fused or fused and crystallized and integrated.

4. 发明专利

JPH0442827A PRODUCTION OF GLASS HAVING PATTERN 失效
公开(公告)号：JPH0442827A
公开(公告)日：1992-02-13
申请号：JP14615490
申请日：1990-06-06
申请人： RYOBI LTD , UMEYA KAORU
发明人： UMEYA KAORU , WATANABE KAZUHIKO , SASAKI HIDETO , KIYO KOKUSEN
IPC分类号： E04F13/15 , C03B19/06 , C03B19/09 , C03B32/00 , E04F13/14
摘要： PURPOSE:To improve transparent feeling and solid feeling of a glass by arranging a mixture of transparent glass grains with opaque glass grains in a mold and integrating the mixture by heating. CONSTITUTION:A mixture of transparent glass grains and opaque glass grains is housed in a mold and fused or fused and crystallized by heating to integrate the glass 1 having a pattern in which opaque part 2 and transparent part 3 are mixed.

5. 发明专利

JPH0371950A SLURRY FOR FORMING INTERMEDIATE LAYER OF COLLAPSIBLE CORE AND PRODUCTION OF COLLAPSIBLE CORE BY USING THIS SLURRY AND COLLAPSIBLE CORE PRODUCED BY THIS METHOD 失效
公开(公告)号：JPH0371950A
公开(公告)日：1991-03-27
申请号：JP20415989
申请日：1989-08-07
申请人： RYOBI LTD
发明人： EKOSHI YOSHIAKI , SASAKI HIDETO
IPC分类号： B22C3/00 , F02F1/24
摘要： PURPOSE:To provide the core having excellent pressure resistance by adding an acidity control agent to a suspension prepd. by mixing refractories, water soluble urea resin and water, kneading the suspension and changing the pH of this suspension, thereby controlling the viscosity. CONSTITUTION:The slurry 2 for forming an intermediate layer is applied on the surface of the sand core 1a and while the slurry is held half-dried, the slurry 3 for forming an outside layer consisting of an aq. synthetic mica soln. is applied on the surface thereof. The slurry 2 for forming the above-mentioned intermediate layer and the slurry 3 for forming the outside layer are simultaneously cured by heating, by which the diffused layer across the intermediate layer and the outside layer is formed to intensify the adhesive property between the intermediate layer and the outside layer. The penetration of a molten metal is completely prevented in this way. Since the intermediate layer is acidic, the layer has small hygroscopicity and the generation of cavities is prevented.

6. 发明专利

JPH01133639A COLLAPSIBLE CORE AND ITS MANUFACTURE 失效
公开(公告)号：JPH01133639A
公开(公告)日：1989-05-25
申请号：JP19416788
申请日：1988-08-02
申请人： RYOBI LTD
发明人： EKOSHI YOSHIAKI , SASAKI HIDETO
IPC分类号： B22C9/10 , B22D17/22
摘要： PURPOSE:To obtain a core having no permeation of molten metal and good collapsibility by coating thermosetting resin solution to a first coating layer composing of fine powdery refractory and urea resin solution. CONSTITUTION:The thermosetting resin solution 3a is coated to the first coating layer 2 composing of the fine powdery refractory 2a and the urea resin solution 2b. The thermosetting resin solution 3a for binder is permeated into the urea resin solution 2b in the first coating layer 2 to deeply put down into the first coating layer 2. This second coating layer 3 is left as it is at room temp. and after vaporizing only a part of solvent, it is dipped into a second slurry and dried and the thermosetting resin solution 3a in the second coating layer 3 is permeated into a third coating layer 4 to deeply put down. By drying and hardening this, the second coating layer 3 deeply putting down into the first coating layer 2 and the third coating layer 4 is formed. By this method, the collapsible core having high sticking strength between each of the coating layers can be obtd.

7. 发明专利

JPS6448638A PRODUCTION OF COLLAPSIBLE CORE 失效
公开(公告)号：JPS6448638A
公开(公告)日：1989-02-23
申请号：JP20484787
申请日：1987-08-17
申请人： RYOBI LTD
发明人： EKOSHI YOSHIAKI , SASAKI HIDETO
IPC分类号： B22C9/10 , B22C3/00
摘要： PURPOSE:To improve the quality and accuracy of a product by coating a low temp. decomposing resin solution on surface of a first coated layer, vaporizing and drying solvent and next forming a second coating layer on the upper surface. CONSTITUTION:A core base body 1a containing collapsible agent is dipped into a first slurry to form the first coating layer 2. Next, the low temp. decomposing resin 4 of urea resin, etc., is coated on the surface of the first coating layer 2 by spray or impregnation and the resin is vaporized and dried in the range, which it is not set. Successively, the second coating layer 3 is formed by heat-setting with a second slurry composing of aggregate selected from scaly graphite, mica, metal powder, etc., and solvent. As the resin 4 is heated and set as penetrating in the first and second coating layers 2, 3, sticking strength of both coating layers 2, 3 is improved. By this method, as flowing loss of the coating layers 2, 3 is eliminated, the quality and accuracy of the product are improved.

8. 发明专利

JPH05337621A 失效
公开(公告)号：JPH05337621A
公开(公告)日：1993-12-21
申请号：JP17193292
申请日：1992-06-05
申请人： RYOBI LTD
发明人： WATANABE KAZUHIKO , SASAKI HIDETO
IPC分类号： B22D17/20 , B29C45/83
摘要： PURPOSE:To provide the heat insulating lubrication method for an injection sleeve which improves the lubricity and the heat insulating characteristic and obviates the generation of the intrusion of gases into a casting. CONSTITUTION:A liquid lubricant 2 having lubricity is applied on the inner peripheral surface of the injection sleeve 1 to form a liquid lubricant layer 2 and a heat insulating powder layer 3 is formed on the liquid lubricant layer 2 before the lubricant dries. As a result, a desired amt. of the heat insulating powder 3 is stuck to the sleeve by the wettability possessed by the liquid lubricant layer 2. Since the heat insulating powder layer 3 is provided, the desired heat insulating effect is obtd. The direct contact of the liquid lubricant and a high-temp. molten metal is prevented and the gasification of the lubricant is prevented.

9. 发明专利

JPH0556217B2 失效
公开(公告)号：JPH0556217B2
公开(公告)日：1993-08-19
申请号：JP291887
申请日：1987-01-08
申请人： RYOBI LTD
发明人： EKOSHI YOSHIAKI , SASAKI HIDETO
IPC分类号： B22C9/10 , B22D17/22

10. 发明专利

JPH0442824A PRODUCTION OF GLASS HAVING PATTERN 失效
公开(公告)号：JPH0442824A
公开(公告)日：1992-02-13
申请号：JP14615390
申请日：1990-06-06
申请人： RYOBI LTD , UMEYA KAORU
发明人： UMEYA KAORU , SASAKI HIDETO , KIYO KOKUSEN , WATANABE KAZUHIKO
IPC分类号： C03B32/00 , C03B11/00 , C03B19/00 , C03B19/06 , C03B19/09 , C03B23/207
摘要： PURPOSE:To make it possible to form a pattern having clear boundary by arranging plural sheets of articles formed with glass fiber nonwoven fabrics having mutually different colors or appearances in a mold and integrating the formed articles by heating. CONSTITUTION:Formed articles 1a and 1b of glass fiber nonwoven fabrics of prescribed shape and one or two or more formed articles of glass fiber nonwoven fabric having different colors or appearances from said formed articles 1a, 1b or grain bodies 2a, 3a, 3b and 3d of glass having 0.5-10mm grain size are arranged in a mold 4 and fused or fused and crystallized by heating to integrate the formed articles 1a and 1b with other formed articles or the above-mentioned grain bodies.

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