| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | JPS6244110Y2 - | JP17688779 | 1979-12-20 | JPS6244110Y2 | 1987-11-19 | |
| 242 | Spheroidal graphite cast iron for metallic mold | JP25349384 | 1984-11-30 | JPS61133360A | 1986-06-20 | ISHIHARA TOSHIAKI; IKUSHIMA KAZUTAKE; MIYAMOTO YASUHIRO; SUZUKI KATSUMI |
| PURPOSE: To provide spheroidal graphite cast iron giving a metallic mold having a fine appearance and satisfactory mechanical characteristics by specifying the contents of C, Si, Ni, Cu, Mo and Mg and regulating the carbon equiv. CONSTITUTION: This spheroidal graphite cast iron for a metallic mold consists of, by weight, 2.8W3.8% C, 1.5W3.0% Si, (C+1/3Si=3.8W4.3%), 4.5W6.0% Ni, 0.3W2.5% Cu, 0.2W1.0% Mo, 0.02W0.07% Mg and the balance Fe with inevitable impurities. The spheroidal graphite cast iron does not contain spheroidal graphite of >100μm maximum grain size by the graphite grain refining effect of Ni and Cu, and the average grain size of graphite is ≤60μm. The average grain size of graphite in a casting surface is reduced to ≤30μm by a rapid cooling effect produced by contact with the surface of a casting mold. When a metallic mold made of the cast iron is used, a thick-walled casting having a smooth surface and high dimensional accuracy is obtd. COPYRIGHT: (C)1986,JPO&Japio | ||||||
| 243 | Production of belt block for belt type continuous variable transmission | JP22359984 | 1984-10-24 | JPS61104027A | 1986-05-22 | SENDA YOSHIZUMI |
| PURPOSE:To improve the wear resistance and strength by restricting the chemical composition of cast iron and the amount of free cementite in the cast iron in an as-cast state so as to improve the hardenability and by specifying conditions during hardening. CONSTITUTION:A casting mold provided with a cavity having the shape of a belt block is produced, by a precision casting. Molten alloy cast iron having the composition consisting of, by weight, 2.8-3.3% C, 1.5-2.1% Si, 1-1.5% Cr, 0.6-0.8% Mo, 0.2-0.5% Ni and the balance Fe is charged into the casting mold and subjected to the precision casting so that the amount of free cementite is regulated to 30-60% in the as-cast state without crystallizing flake graphite. Mold balancing is then carried out, and the resulting belt block taken out of the mold is held at 970 deg.C for 1-10hr, quenched in oil at ordinary temp. - 80 deg.C, and tempered at 140-200 deg.C low temp. for 0.5-2hr. | ||||||
| 244 | Manufacture of directional solidified turbine blade | JP18676685 | 1985-08-27 | JPS6171168A | 1986-04-12 | MAIKERU ANTONII BAAKU; SHIRIRU JIERAADO BETSUKU |
| A process for fabricating turbine blades for combustion turbines. A mold containing molten metal is cooled in a controlled fashion such that solidification occurs slow enough to allow single crystal growth beginning at the airfoil end. The solidification is monitored and magnetic mixing of the remaining molten metal is started at approximately the beginning of solidification of said root section and at approximately the same time the rate of cooling of said blade is increased to a rate faster than at which single crystal growth occurs. Grain boundary strengthener (preferably carbon) can be added at approximately the same time mixing is begun. A blade is produced with a single crystal airfoil section and a fine grained root section. | ||||||
| 245 | JPS5947618B2 - | JP2113877 | 1977-02-28 | JPS5947618B2 | 1984-11-20 | ARAI TETSUO |
| 246 | Method for preventing cracking of cast iron product in die casting | JP7181183 | 1983-04-22 | JPS59197373A | 1984-11-08 | KATOU TATSUHIKO; KAGITANI MASAYUKI; MATSUKAWA HIDETO |
| PURPOSE:To prevent generation of a cracking defect in a cast iron product in the stage of casting by casting a molten metal consisting of a specific ratio of Fe, C, Si, Mn, S and P into water-cooled dies formed of a copper alloy and parting the dies after a specified time. CONSTITUTION:A molten metal of which the chemical components consist, by weight, of 3.2-4.0% C, 2.2-3.0% Si, 0.4-0.9% Mn, <=0.15% S, 0.2-0.8% P and the balance Fe and of which at least the weight ratio of Mn/S is within a 8-15 range is cast into water-cooled dies formed of a copper alloy (0.2-0.8Cal/cm<2>. S. deg.C heat conductivity) and the dies are parted upon lapse of 8sec. The cast iron product which has high strength, has the graphite shape of the D or E type texture and obviates generation of a cracking defect is thus obtd. | ||||||
| 247 | JPS5964436U - | JP15912582 | 1982-10-20 | JPS5964436U | 1984-04-27 | |
| 248 | Soft magnetic alloy casting | JP15680282 | 1982-09-10 | JPS5947065A | 1984-03-16 | KATOU TOSHIHIRO; IKEDA MASANORI |
| PURPOSE:To produce a soft magnetic alloy casting having excellent magnetic characteristics and intricate shapes with a simple magnetic annealing treatment at a low cost in the precision casting stage of an Fe-Ni type soft magnetic alloy having a specific compsn., by casting the alloy at the time. higher by a specific degree from the liquidus line of the alloy. CONSTITUTION:An Fe-Ni soft magnetic alloy contg. 35-85wt% Ni is used as a raw material in the stage of producing a soft magnetic alloy casting having intricate shapes and excellent magnetic characteristics. The melt of such alloy is cast into a precision casting mold of lost wax or the like from the temp. higher by >=50 deg.C than the liquidus line temp. thereof, whereafter the molten metal is subjected to a simplified magnetic annealing treatment and the magnetic alloy casting having excellent magnetic characteristics is produced. 1 or >=2 Kinds among <8% Si, <15% Mn, <26% Cu, <8% Mo are added to improve further the magnetic characteristics, and <8% Cr is added to improve the corrosion resistance and further 1 or >=2 kinds among Nb, V, Ti, Ta, W are added in specific amts. in order to improve the wear resistance. | ||||||
| 249 | JPS58134635U - | JP2958882 | 1982-03-04 | JPS58134635U | 1983-09-10 | |
| 250 | JPS5810574B2 - | JP1945179 | 1979-02-20 | JPS5810574B2 | 1983-02-26 | SUGANO HIDEO |
| 251 | Production of magnetic material | JP9042281 | 1981-06-12 | JPS5744462A | 1982-03-12 | SUZUKI KUNIO; TOKUSHIMA TADAO; KASHIMURA MAMORU |
| PURPOSE: To prevent the formation of shrinkage and micro voids by pouring molten metal of an Fe-Al-Si type magnetic material into a mold in a vacuum and allowing the molten metal to solidify while it is held in a vibrated state. CONSTITUTION: High-purity materials are used for raw materials for melting, and are so compounded that the product to be obtained in the final consists essentially of about 3W8wt% Al, about 3W12wt% Si, and the balance Fe. More preferably, Si is about 9.7wt%±0.2wt%, and if Si is 9.7wt%, Al is desirably about 5.8wt% and Fe about 4.5wt%. It is desirable that the degree of evacuation in the chamber where the molten metal exists is about 10 -3W10 -5 torr, and mechanical accelerations are applied to the molten metal by vibration. Thereby, the labor for turning and grinding work after the casting is considerably reduced, a high working yield is obtained, and the material of extremely high magnetic characteristics is obtained. COPYRIGHT: (C)1982,JPO&Japio | ||||||
| 252 | Silicon-aluminum alloy sliding member | JP449280 | 1980-01-21 | JPS56102545A | 1981-08-17 | HASHIMOTO MASAOKI; KOYAMA HARATSUGU; MANABE AKIRA; KATOU SHINJI; HIRAMATSU SHIGEKI |
| PURPOSE: To provide a sliding member with highly stabilized seizing and wear resist ances by specifying the area percentage of proeutectic Si in a sliding surface layer of an Al-Si alloy sliding member contg. a specified amount of Si. CONSTITUTION: When an Al-Si alloy contg. 14W20wt% Si is cast, casting conditions such as mold temp., molten metal temp., plunger speed and gate area are selected to gradually increase the area percentage of proeutectic Si from the casting surface toward the interior. Accordingly by arbitrarily selecting the Si content, casting conditions, cutting margin and polishing margin, the area percentage of proeutectic Si can be adjusted arbitrarily in the 2W8% range. Since the resulting Si-Al alloy has superior seizing and wear resistances, it is applied to a sliding member for a car driving gear, a car gearbox, etc. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 253 | JPS5692733U - | JP17688779 | 1979-12-20 | JPS5692733U | 1981-07-23 | |
| 254 | Sliding material | JP16027979 | 1979-12-12 | JPS5684433A | 1981-07-09 | INOUE KIYOSHI |
| PURPOSE: To provide a sliding material having excellent pressure resistance, strength, hardness, and abrasion resistance under a high temperature by sintering molded mixture of carbonaceous material, metal alloy, and organic silicone cpd. CONSTITUTION: Carbonaceous material such as coke or graphite: 0W80%, organic silicone cpd. such as polydimethyl silane: 1W50%, tar as a binding agent: 0W60%, the remaining metal or alloy such as Al, Ni, Cu, Ag, Mo, and W are grained except for tar and then mixed. The mixture is formed into a specified shape under a pressure of 200W1,000kg/cm 2 and heated to a temperature of 100W150°C to vaporize volatile matter in the mixture. The mixture is sintered by raising the temperature to 800W1,000°C whereby highly reactive Si produced by decomposition of organic silicone cpd. reacts with carbonaceous material to form SiO, which, together with formed metal carbide, is uniformly distributed into the product. Thus, the process provides a sliding material having excellent properties under high temperature and suited as current passing brush, pantograph, metal, and bearing. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 255 | Production of broad amorphous metal tape and producing apparatus thereof | JP3325779 | 1979-03-23 | JPS55136552A | 1980-10-24 | TAKAHASHI TAKASHI |
| PURPOSE: To prevent the erosion of nozzle end part, form stable molten metal jet flow and produce the broad metal tape by blowing the raw material metal which has been melted on a porous heat-resistanct plate provided right above the nozzle to a rotary cooling body from the nozzle in an inert atmosphere thereby rapidly solidifying the same. CONSTITUTION: Raw material metal (e.g.; Fe 62Ni 16Mo 2Si 8B 12) is loaded onto a porous heat-resistant plate 16 composed of quartz glass or the like in a molten metal feed pipe 11. Inert gas such as Ar gas is flowed from a gas feed pipe 19 into the furnace through gas hole 18 and is flowed in a heating furnace 14. On the other hand, while the Ar gas is being flowed into the pipe 11, the furnace 14 is headed to the specified temperature to melt the raw material metal. After it has melted perfectly, it is lowered in the pipe 11. Thence, Ar gas is applied to molten metal in the pipe 11 under high pressure to let the molten metal jet out onto the rotary cooling body 15 which is rotating at a high speed, from a nozzle 13 through the multiple pores of the heat resistant plate 16. As a result of this, the homogeneous broad amorphous metal tape of flat surfaces is obtained. COPYRIGHT: (C)1980,JPO&Japio | ||||||
| 256 | Production of fe-a -si base alloy | JP13404578 | 1978-10-31 | JPS5561364A | 1980-05-09 | HAGI CHITOSHI |
| PURPOSE: To form the molding suited for magnetic head core material without grinding by sucking molten metal of Fe/Al/Si base alloy into the tubular body composed of high melting point material of a desired shape. CONSTITUTION: Molten metal 3 of Fe/Al/Si base alloy prepared by a vacuum melting method or the like is contained in an aluminum crucible 1 which is heat-retained with a heating coil 2 and a tubular body composed of high melting point material of a desired shape such as quartz tube 4 or the like is inserted therein, thence the molten metal is sucked up by a vacuum pump. Since this method lets a circular cylindrical block 5 of a desired shape to be directly formed, it enables the magnetic head core material of high yield to be obtained. COPYRIGHT: (C)1980,JPO&Japio | ||||||
| 257 | Production of fiberrreinforced composite material | JP10202177 | 1977-08-25 | JPS5442332A | 1979-04-04 | BAN KEISUKE; ARAI TAKEO; DAIMARU AKEMASA |
| 258 | Method of making allsi alloy casting members | JP7203278 | 1978-06-14 | JPS5410233A | 1979-01-25 | MARUCHIN RIYUURE |
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