专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS61273232A MOLD COATING MATERIAL FOR DURABLE CASTING MOLD 失效
公开(公告)号：JPS61273232A
公开(公告)日：1986-12-03
申请号：JP11485085
申请日：1985-05-28
申请人： KAWASAKI STEEL CO , KAWASAKI REFRACTORIES CO LTD
发明人： ARIMOTO TAKESHI , HIROE YOSHINORI , SUZUKI NISAKU , TANI TOSHIRO , NAKAJIMA MASAYOSHI , FUNATO KATSUAKI
IPC分类号： B22C3/00 , B22C1/00
摘要： PURPOSE:To prevent the penetration of a base metal to a durable casting mold and the burning of a mold coating material to the casting and to extend the life of the curable casting mold by using the mold coating material prepd. by adding a phosphoric acid binder soln. at the weight limited with respect to the weight of a mixture composed of a refractory material and carbon material of a limited weight ratio to said mixture. CONSTITUTION:The mold coating material is prepd. by adding 1-40pts.wt. phosphoric acid binder soln. to 100pts.wt. mixture composed of 10-70wt% refractory material and 30-90wt% carbon material. The refractory material is used by combining 1 or >=2 kinds refractory materials suitable for using conditions. Burning and surface roughening increase if the carbon material is used at =90wt%. The mechanical strength is low if the binder soln. is used at =40pts.wt.

2. 发明专利

JPS61273235A MOLD PARTING MATERIAL FOR DURABLE CASTING MOLD 失效
公开(公告)号：JPS61273235A
公开(公告)日：1986-12-03
申请号：JP11485185
申请日：1985-05-28
申请人： KAWASAKI STEEL CO , KAWASAKI REFRACTORIES CO LTD
发明人： ARIMOTO TAKESHI , HIROE YOSHINORI , SUZUKI NISAKU , ENDO ISAMU , TANI TOSHIRO , NAKAJIMA MASAYOSHI
IPC分类号： B22C1/14
摘要： PURPOSE:To suppress the reaction of a molten metal and slag and casting mold and to permit the easy rapping of a casting by compounding a suitable amt. of binder and water with refractory raw material powder, coating the mixture of the durable casting mold, heating the mold at an adequate temp. to dry and applying a coating material on the surface. CONSTITUTION:The mold parting material is prepd. by compounding 0.5-25wt% clay mineral such as 'KIBUSHI' clay, org. binder such as molasses or inorg. binder such as sodium silicate with the refractory raw material powder of alumina, magnesia, etc., compounding, if necessary, water therewith and kneading the mixture. Such mold parting material is coated on the durable casting molds 1-3 and is dried at an adequate temp. of 50-300 deg.C. The conventional surface coating material is applied on the surface after drying. The mold parting material has adequate strength and is easily strippable and therefore the material permits the easy rapping and suppresses the penetration of the molten metal 4, slag or flux into the durable casting mold and the reaction thereof with the durable casting mold.

3. 发明专利

JPS61273236A DURABLE CASTING MOLD 失效
公开(公告)号：JPS61273236A
公开(公告)日：1986-12-03
申请号：JP11484985
申请日：1985-05-28
申请人： KAWASAKI STEEL CO , KAWASAKI REFRACTORIES CO LTD
发明人： ARIMOTO TAKESHI , HIROE YOSHINORI , SUZUKI NISAKU , TANI TOSHIRO , HAGIWARA NOBORU , NAKAJIMA MASAYOSHI , FUNATO KATSUAKI
IPC分类号： B22C1/18
摘要： PURPOSE:To improve the casting surface of a casting by compounding a suitable amt. of phosphoric acid binder with refractory raw material powder to form a durable casting mold and drying the mold thereby permitting the repeated use of the durable casting mold with high strength and decreasing the gas to be generated in the stage of casting a molten metal. CONSTITUTION:About 20-90wt% phosphoric acid binder such as aluminum phosphate and magnesium phosphate is compounded and kneaded with the ordinary refractory raw material powder such as alumina or zircon and the mixture is molded by ordinary rammer molding, casting, etc. and is dried. The resulted durable casting molds 5, 7 have the high strength and can be repeatedly used. The gas to be generated from the casting mold during casting of the molten metal is decreased and the casting surface of the casting is good.

4. 发明专利

JPS6415250A MOLD FOR REDUCED PRESSURE CASTING AND ITS RISER MOLDING METHOD 失效
公开(公告)号：JPS6415250A
公开(公告)日：1989-01-19
申请号：JP16861887
申请日：1987-07-08
申请人： KAWASAKI STEEL CO
发明人： ICHINO KENJI , SUZUKI NISAKU
IPC分类号： B22C9/04
摘要： PURPOSE:To improve yield of casting and to reduce man-hour for cutting riser by standing a riser guide bar on a master pattern in the mold and also arranging a lost foam riser pattern on the way of standing part of the riser hole. CONSTITUTION:The slender guide bar 11 having diameter corresponding to neck diameter of the riser is stood at the position of the riser on the master pattern 5 in the mold. Next, after forming film 8 on the guide bar 11, the riser pattern 6 made of the lost foam pattern is fitted around the bar 11. Sand (aggregate) is filled in the mold and after film-forming on the upper face of the mold flask, air pressure in the mold is reduced. After that, by taking out the master patter 5 and the guide bar 11, the molding is completed. By this method, as the lost foam riser pattern is possessed at the standing part of the small riser hole in the mold, the riser 6 is miniaturized and the yield of the casting is improved. As the riser is formed as neck-down type, the man-hour for cutting the riser is reduced.

5. 发明专利

JPS6380942A METHOD FOR CASTING USING CONSUMABLE PATTERN AND SAID PATTERN 失效
公开(公告)号：JPS6380942A
公开(公告)日：1988-04-11
申请号：JP22585086
申请日：1986-09-26
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU
IPC分类号： B22C9/04
摘要： PURPOSE:To reduce the man-hours for molding and to easily form a casting mold having high accuracy by embedding a consumable pattern into molding sand, evaporating and consuming the pattern and pouring a molten metal into the cavity formed thereafter. CONSTITUTION:The pattern 1 is fashioned of the block of dry ice and is embedded into a molding flask 7. A runner 2, sprue 3, etc., are set thereto and molding is executed by using quick setting self-curable molding sand 4. A flow off hole 5 is provided to the flange part in contact with the cope surface in the upper part of the pattern 1 and the molten metal 8 is poured through a funnel 6. The pattern 1 and the runner 2 are molded and are sublimated and consumed upon lapse of the prescribed time to form a cavity. The molten metal 8 is successively cast into the casting mold 1 from the lower part and the casting having the shape exactly complying with the shape of the pattern is obtd. Casting is thereby easily and simply executed. Since the pattern itself is strong, the deformation thereof is obviated. The product casting having intricate shapes is thus easily cast.

6. 发明专利

JPS6213254A COOLING METHOD FOR VACUUM CASTING MOLD 失效
公开(公告)号：JPS6213254A
公开(公告)日：1987-01-22
申请号：JP15276785
申请日：1985-07-11
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU
IPC分类号： B22D18/06 , B22D27/04
摘要： PURPOSE:To safely and easily obtain a satisfactory cooling effect by embedding a pipe coatd with a film around micro-vent holes into a titled casting mold and packing dry ice into the pipe. CONSTITUTION:The cooling pipe 4 bored with the micro-vent holes on the outside circumference is coated with the film and the granular dry ice is packed into the pipe 4. The pipe 4 is embedded into the vacuum casting mold in a metal flask 1. The pipe 4 is coupled by a joint 5 and is removable as desired. The inside of the flask 1 is evacuated by suction through a suction hole 3 from a suction chamber 2. The film coating the pipe 4 is expended and the dry ice evaporates and introdes into the casting mold through the small holes bored to the pipe 4 with a product 7 is cast. The dry ice cools the product 7 together with the sand and is conducted into the chamber 2 from which the dry ice is discharged. The above-mentioned film which prevents the release of the dry ice till pouring of the molten metal into the mold and easily melts even at a low temp. is preferable.

7. 发明专利

JPS6061139A CASTING METHOD OF HIGH MANGANESE CAST STEEL PRODUCT 失效
公开(公告)号：JPS6061139A
公开(公告)日：1985-04-08
申请号：JP16679183
申请日：1983-09-12
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU , WATANABE YASUO
IPC分类号： B22C1/02 , B22C3/00 , B22D18/06
摘要： PURPOSE:To obtain a high manganese cast steel which has excellent quality and with which a defect such as burn-on is hardly admitted on the surface by using a casting mold composed of silica sand, coating an MgO or Cr2O3 mold coating material into film and subjecting the steel to vacuum casting. CONSTITUTION:MgO and Cr2O3 both exhibit basicity. The reaction between MgO and SiO2 of silica sand prevents the burn-on of a casting surface. The Cr2O3 mold coating material does not react with MnO as said material has basicity at a high temp. A high manganese cast steel having a good casting surface is thus obtd. Therefore if vacuum casting is performed after the mold coating material of MgO or Cr2O3 alone or a mixture composed thereof is coated into film, the high manganese cast steel product having no burn-on defect formed on the surface is obtd. and the cost by using the molding sand composed of silica sand is reduced.

8. 发明专利

JPS6061137A DELAYING METHOD OF TIME FOR CURING ORGANIC MOLDING SAND 失效
公开(公告)号：JPS6061137A
公开(公告)日：1985-04-08
申请号：JP16679283
申请日：1983-09-12
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU
IPC分类号： B22C1/02 , B22C1/20
摘要： PURPOSE:To provide a casting mold having high strength and surface stability by mixing ethylene glycol methacrylate, etc. with a curing catalyst or mixing preliminarily the same with molding sand and forming a self-curing casting mold. CONSTITUTION:Ethylene glycol or polyethylene glycol methacrylate is mixed as a delaying agent to an org. acid which is a curing catalyst or said glycol is preliminarily and independently mixed with molding sand and a self-curing casting mold is formed in the stage of forming an org. casting mold. The additive is added at 0.1-0.3pts.wt. by 100pts.wt. the sand by which an adequate curing speed is obtd., working efficiency is improved and the casting mold having excellent surface stability is provided. The casting defect occurring in the casting mold is decreased and productivity is improved.

9. 发明专利

JPS5994550A METHOD FOR PREVENTING DETERIORATION IN GRAPHITE TEXTURE IN SURFACE LAYER OF CASTING OF SPHERIOIDAL GRAPHITE CAST IRON 失效
公开(公告)号：JPS5994550A
公开(公告)日：1984-05-31
申请号：JP20347282
申请日：1982-11-19
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU
IPC分类号： B22C3/00
摘要： PURPOSE:To improve the resistance to cracking and quality by coating a mold coating material consisting essentially of Zn oxide on the surface of a casting mold for a spheroidal graphite cast iron (SGI) so that the sulfurizing in the surface part of a casting is prevented. CONSTITUTION:A mold coating material consisting essentially of Zn oxide and contg. >=1 kind among oxides of Ni, Cr, Fe, Cu is coated in one layer on the surface of a casting mold contg. an org. binder curable by an acid. A mold coating material contg. >=1 kind among Ni, Cr, Fe, Cu is coated thereon to form the 2nd layer. The melt of SGI is charged into the casting mold coated thereon with such mold coating material and the casting of SGI is cast. The sulfurizing in the surface of such casting is prevented, whereby the resistance to cracking and quality are improved.

10. 发明专利

JPS63104747A VACUUM CASTING METHOD BY USING EXPENDABLE PATTERN 失效
公开(公告)号：JPS63104747A
公开(公告)日：1988-05-10
申请号：JP25086686
申请日：1986-10-23
申请人： KAWASAKI STEEL CO
发明人： SUZUKI NISAKU
IPC分类号： B22C9/02
摘要： PURPOSE:To form a secure shell layer on the surface of a solid carbon dioxide expendable pattern without molding a film on said surface by coating the surface of said pattern with sand added with a low viscous emulsion and packing dry sand onto the outside thereof and subjecting the same to a pressure reduction. CONSTITUTION:The surface of the solid carbon dioxide expendable pattern 4 is coated with the sand 2 added with the low viscous emulsion and the dry sand 3 is packed onto the outside thereof in a molding flask 1 having a reduced pressure construction. Such pattern 4 is expended by evaporation to form a cavity and the pressure in the cavity is reduced from a suction hole through a jacket 5 continuously until the pouring of a molten metal into the cavity is completed. The emulsion sand 2 is prepd. by dissolving vinyl acetate, etc., in a solvent such as xylene, mixing the same with mixing the sand with such emulsion. Said sand cures by reacting with the carbon dioxide generated during the sublimation of the pattern 4 and forms a casting mold of high strength on the surface of the pattern.

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