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JP3719664B2 |
To provide a high-chromium iron casting for large objects which may extend its longevity and prevent damages during use. The casting comprises 2.4-3.5 wt.% C, 0.5-1.5 wt.% Si, 0.5-2.5 wt.% Mn, 14-21 wt.% Cr, 2-4 wt.% Mo, 0.5-2.5 wt.% Ni ...
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JP3712338B2 |
To provide a method for producing spheroidal graphite cast iron having excellent internal quality to a thick spheroidal graphite cast iron product having a thickness of ≥200 mm. The molten metal of a ferrous alloy having a composition ...
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JP2005297005A |
To manufacture a rolled stock of cast iron which is difficult to manufacture by a conventional method, at a low cost and in large amounts and also to provide high-quality rolled cast iron.A cast slab is manufactured by making the cast ir...
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JP3709445B2 |
To reduce the amount of Ni to be added in a rotor for a disk brake without damaging its heat crack resistance and to reduce its cost. This rotor is composed so as to contain respectively, by weight, 2.8 to 3.8% C, 1.8 to 3.4% Si, 0.5 to ...
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JP3710053B2 |
To provide a stainless spheroidal carbide cast iron having satisfactory characteristics such as corrosion resistance, heat resistance, abrasion resistance toughness, and workability together, by crystallizing only spheroidal vanadium car...
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JP2005290406A |
To provide a member for nonferrous molten metal which has excellent erosion resistance, thermal shock resistance or the like, and in which the part to be exposed to high temperature other than the part to be contacted with molten metal h...
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JP2005290420A |
To provide a cast iron material which maintains high strength sufficiently corresponding to the request for the increase in strength in the cast iron material by eliminating the defects of the conventional cast iron material, and also ha...
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JP2005290408A |
To provide a member for nonferrous molten metal which has excellent erosion resistance, thermal shock resistance or the like, and in which the part to be exposed to high temperature other than the part to be contacted with molten metal h...
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JP3707825B2 |
PURPOSE: To provide a low thermal expansion cast iron of which the low thermal expansion property is further improved by effectively reducing Ni segregation even in the as-cast condition without always executing such heat treatment of ra...
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JP3707675B2 |
To provide a flaky graphite cast iron for restraining wear of a tool, which shows abrasion resistance principally in a high speed machining region. The objective flaky graphite cast iron includes Mg in a range of 0.005 wt.% or more but l...
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JP2005281769A |
To easily produce a tough nanocrystal high carbon iron alloy bulk material having high hardness and high strength by producing a tough nanocrystal high carbon iron alloy powder material having extremely high hardness, and compacting the ...
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JP2005281768A |
To easily produce a tough nanocrystal white cast iron bulk material having high hardness and high strength by producing a tough nanocrystal white cast iron powder material having extremely high hardness and compacting the powders.The nan...
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JP3704676B2 |
To provide a casting suitable for a wear resistant material such as agricultural machines, e.g. the edges of a subsoiler, a rotary, a plough, or the like, and a sprocket, a pump case for raw sewage, a livestock excreta pump, scattering m...
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JP2005264238A |
To provide a member for a molten nonferrous metal which has excellent erosion resistance, thermal impact resistance or the like, and in which the part exposed to high temperature other than the part in contact with molten metal has excel...
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JP2005256088A |
To provide a spheroidal graphite cast iron member whose surface layer is a structure mainly composed of ferrite in an as-cast state, and whose inside is composed of a structure having a pearlite area rate higher than that of the surface ...
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JP2005528522A |
Inoculation alloys for treating cast iron castings containing, by weight, 0.005% to 3% of an element selected from the group consisting of bismuth, lead and antimony, 0.3 to 10% of metals of the rare-earth group and optionally aluminum u...
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JP2005246391A |
To provide a three-layer composite sleeve roll especially excellent in wear resistance, resistance to surface roughening and resistance to break, with respect to a rolling roll.The three-layer composite sleeve roll comprises an outer lay...
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JP3694732B2 |
To provide a method for producing a high chromium cast iron powder alloy having hardness exceedingly higher than that of the conventional casting material by refining and homogenizing its structure. High chromium cast iron rapidly solidi...
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JP3687329B2 |
To provide a method for producing high thermal conductivity high grade cast iron excellent in strength and thermal conductivity and to provide high thermal conductivity high grade cast iron. In a molten metal obtd. by melting cast iron c...
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JP3683417B2 |
To secure large surface compressive residual stress in an outer layer by forming an intermediate layer from an adamite type material and making the overall structure of the intermediate layer into a pearlitic structure. An intermediate l...
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JP3685381B2 |
To solve the prolem that ductile cast iron metal materials, conventional friction welding cannot assure the resultant base metal of even strength and elongation. Two ductile cast iron materials, either or both of which contain 2.5% or mo...
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JP2005213546A |
To solve problems that a high-silicon cast iron (14 wt.% or more silicon) in which a large amount of Si is added to the iron for use in concentrated sulfuric acid is too hard and fragile to be mechanically worked into a complicated shape...
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JP2005206894A |
To provide white cast iron for a cutting tool having excellent working properties at the edge and having satisfactory sharpness since the grain size and distributed condition of V carbides are sufficiently controlled and also its structu...
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JP3672832B2 |
To provide a ductile cast iron pipe having a small content of impurities such as P, Cu and Cr and excellent mechanical properties such as elongation or impact value and a manufacturing method therefor. The ductile cast iron pipe is obtai...
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JP2005177809A |
To provide an external layer material of a rolling roll which is excellent in wear resistance, resistance to rough surface and resistance to accident, and the rolling roll using the same.The external layer material of the rolling roll ha...
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JP2005177808A |
To provide an external layer material of a rolling roll which is excellent in wear resistance, resistance to rough surface and resistance to accident and the rolling roll using the same.The external layer material of the rolling roll, th...
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JP2005169427A |
To provide an outer layer material of a rolling roll which is excellent in wear resistance, roughening resistance and resistance to accident and the rolling roll using the same.This outer layer material of the rolling roll has, by area, ...
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JP2005171285A |
To provide an external layer material for rolling mill roll in which wear resistance and surface roughing resistance are improved by forming the shape of MC carbides into granular shape and dispersing the MC carbides finely and uniformly...
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JP2005169426A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary between an outer layer and an inner laye...
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JP2005169423A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary between an outer layer and an inner laye...
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JP2005169422A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary of an outer layer and an inner layer.The...
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JP2005169425A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary between an outer layer and an inner laye...
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JP2005169424A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary between an outer layer and an inner laye...
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JP2005169421A |
To provide a composite rolling roll excellent in abrasion resistance, surface roughening resistance, and accident resistance, and excellent in mechanical properties in the vicinity of the boundary of an outer layer and an inner layer.The...
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JP2005171286A |
To provide an external layer material of a roll for rolling having excellent wear resistance, surface roughening resistance and accident resistance, and to provide a roll for rolling using the same.The external layer material of a roll f...
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JP3664703B2 |
To provide cast iron which has a long service life and excellent molten metal erosion resistance, and can withstand repeated use. The cast iron comprises, by mass, 1.0 to 3.3% C, 0.5 to 1.5% Si, 0.5 to 1.5% Mn, 10 to 30% Cr and 1 to 5% A...
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JP2005163093A |
To reduce the cost of an apparatus concerned with an exhaust flow passage in an automobile diesel engine in which stainless steel has been used heretofore such as an EGR (exhaust gas recirculator) cooler, by using a high melting point ca...
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JP2005152957A |
To provide a spheroidal graphite cast iron casting which is made low-cost by dispensing with both a feeder head and a cooling mold or minimizing the necessity for both of them, and to provide a production method therefor.The method of pr...
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JP3659799B2 |
To increase the tensile strength of high strength cast iron contg. Ce components and to increase the yield of Ce to be added to molten metal. To molten metal in which the original molten metal of cast iron is previously added with Cr, Mo...
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JP3659031B2 |
To produce an external layer material for a centrifugally cast roll small in the segregation of components or the like, having a low friction coefficient, excellent in crack resistance and wear resistance and moreover having high tensile...
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JP3660134B2 |
To provide a ferrous alloy material for thixocasting, capable of producing a casting having mechanical properties uniform all over. This material has a composition consisting of, by weight, 1.8-2.5% C, 1.0-3.0% Si, 0.1-1.5% Mn, 0.5-3.0% ...
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JP3658099B2 |
To provide a wear resistant type high strength roll having ≥80kgf/ mm2 tensile strength in the shaft part and in the inner layer. A rolling roll is constituted by forming an outer layer metal around a core material by casting. At this ...
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JP3658488B2 |
To produce an eutectic graphite cast iron having uniform structure by the use of a sand mold. A molten cast iron, having a composition consisting of, by weight, 2.6-3.6% C, 1.8-2.4% Si, ≤1.0% Mn, ≤0.2% P, 0.006-0.02% S, 0.15-0.30% Ti...
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JP3654899B2 |
This invention relates to a method of manufacturing cast iron having a high Ni content, a high strength and a low expansion in which the strength of cast iron is improved without spoiling the low expansibility thereof. The cast iron is u...
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JP2005133142A |
To provide a cast iron based soft magnetic material which is advantageous to the increase of magnetic flux density.The cast iron based soft magnetic material has a ferritic iron based matrix, and carbide formed by one or more carbide for...
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JP3648158B2 |
To provide a spherical graphite cast iron which can be lightened and has excellent low temperature impact resistance and mechanical properties such as tensile strength. The spherical graphite cast iron has a composition containing, by ma...
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JP2005113232A |
To provide a new carbon-solid-solution iron material which is excellent in heat resistant strength characteristics, durability, wear resistance, a release property.The carbon-solid-solution iron material in which 5 to 50mass% of carbon e...
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JP3643313B2 |
To provide a treating agent for injecting magnesium into iron containing a mixture of high melting point particles and magnesium particles. The quantity of the high melting point particles in the mixture of the high melting point particl...
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JP3643487B2 |
To heat even a material having a chill structure into a semi-melted condition without developing cracks. In heating a material for thixocasting in which a Fe alloy material having a chill structure is heated from a normal temperature to ...
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JP3641597B2 |
To provide a composite roll for hot rolling and a method for hot rolling using this roll which has less wearout due to high frictional force between the workpiece and is neither flattened nor damaged by yielding for continuous hot rollin...
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