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JP2002066723A |
To make it possible to adjust wear resistance of a part of a casting surface, and also to increase machining efficiency and machining accuracy of a casting after casting.This casting of a wear resistant compound material and its manufact...
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JP2002060823A |
To provide a highly ductile spheroidal graphite cast iron with particularly improved elongation characteristics.The high ductile spheroidal graphite cast iron has elongation 24-35%, in which the elongation of the as-cast material (Y-shap...
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JP3260099B2 |
To manufacture a thin automotive parts developing little noise by using a die casting method, by inserting a graphite cast iron member with a specific thickness of an aluminum alloy member as cast-in. A bearing supporting member 3 is ins...
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JP2002038217A |
To further improve the wear resistance of a cast iron component compared with a conventional wear resistant one by heightening its hardness.The raw material of a cast iron comprising, by weight, 2.0-3.5% C, 0-1.0% Si, 0.5-1.5% Mn, 0-1.5%...
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JP3253605B2 |
To provide a cast iron member for inserting excellent in the packing property of an aluminum material and the adhesive strength with the aluminum material when a die-casting is performed, an inserted product using this and a manufacturin...
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JP2002003982A |
To improve machinability and mechanical properties of cast iron such as flake graphite cast iron, eutectic graphite cast iron and spheroidal graphite cast iron.This cast iron has a composition containing, by mass, 2.8 to 4.0% C, 1.5 to 2...
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JP3243257B2 |
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JP3244613B2 |
PURPOSE: To stably obtain a product having high magnetic density in a low cost by adding the specific contents of Bi, Pb, Ca, Mg in the coating condition of Fe base and/or C base alloy to molten steel containing the specific contents of ...
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JP3241561B2 |
PURPOSE: To produce an inexpensive roll for hot rolling, excellent in resistance to wear and fracture loss, for use in the intermediate and the finishing stand at the time of rolling for steel bar, such as round bar and flat bar, and wir...
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JP2001348642A |
To provide a heat resistant joined member free from peeling caused by local internal oxidation in the joint even if repeatedly used in a high temperature oxidizing environment.In this heat resistant joined member whose one part at least ...
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JP2001342981A |
To provide a rotary compressor with excellent wear resistance and capable of being used for a refrigerant R134a, a refrigerant R22, and a refrigerant alternative to R22.A vane 15 inserted into a groove part formed radially in a cylinder ...
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JP3233711B2 |
PURPOSE: To produce a sound casting free from hexagonal cracking by casting a molten FeAl intermetallic compound, where Fe and Al are blended at specific ratio, in a mold and performing cooling at specific solidification cooling velocity...
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JP3231729B2 |
To improve the soundness on a joined interface of a cast iron and a steel material even in the case of being high carbon content in the steel material when the steel is inserted with the cast iron as cast-in. As the steel material 1B bei...
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JP3230899B2 |
PURPOSE: To provide a heat treating method suitable for a high-speed steel series cast iron material and a composite roll in which the external layer is provided with the same cast iron material. CONSTITUTION: A high-speed steel series c...
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JP2001520313A5 |
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JP2001520313A |
An iron alloy comprises 1.5-4.5 % carbon, 1.5-4.5 % silicon, at least 1.0 to 6.5 % molybdenum and optionally copper and/or nickel wherein (% Mo + % Ni + % Cu) does not exceed 6.5 %, balance iron and incidental impurities. The alloy is pr...
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JP2001294975A |
To provide a composite roll for a rolling treatment in which a roll with high performance corresponding to various shapes as a work roll for the rolling treatment and excellent in wear resistance, surface roughening resistance and toughn...
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JP3219987B2 |
To improve the surface roughing resistance of a high speed steel type cast iron material containing crystallized graphite, used as an outer layer material for a composite roll for rolling, while securing desired wear resistance. This hig...
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JP3218625B2 |
PURPOSE: To provide a thin CV graphite cast iron excellent in scuffing resistance and wear resistance as well as in toughness. CONSTITUTION: This cast iron has a composition consisting of, by weight ratio, 3.2-4.0% C, 1.5-2.8% Si, 0.3-0....
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JP2001279367A |
To provide a roll for hot rolling made by centrifugal casting excellent in wear resistance and crack resistance. This roll for hot rolling made by centrifugal casting is composed of an external layer having a composition containing, by m...
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JP2001279366A |
To provide a high capacity roll excellent in wear resistance and surface roughening resistance in rolling, particularly, in hot and cold rolling for steel. This roll material for rolling is composed of the material having a composition c...
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JP3217570B2 |
PURPOSE: To improve toughness, wear resistance, and seizure resistance by using a material suitable for functions respectively required for outer and inner layers. CONSTITUTION: An outer layer 2 is formed of a forged steel, an inner laye...
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JP3217427B2 |
PURPOSE: To improve the durability of the material used as a liner, a plate or the like used in a blast furnace of an iron mill and its stock treating equip ment. CONSTITUTION: The objective material having wear resistance to lump ores i...
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JP3217661B2 |
To obtain a ductile cast iron material excellent in toughness and surface roughing resistance by specifying a composition consisting of C, Si, Mn, P, S, Ni, Cr, Mo, Cu, Mg, Bi, and Fe. This material is a ductile cast iron material having...
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JP3214814B2 |
To achieve the spheroidization of dendrite in heating the casting material with dendrite to the semisolid condition where the solid phase and the liquid phase are coexistent. The casting material in which the difference a-b≥3.6atm.% wh...
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JP3204293B2 |
To provide a method for manufacturing a spheroidal graphite cast iron member having excellent bendability and mechanical strength such as impact resistance. The spheroidal graphite cast iron member has a surface layer part of at least 0....
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JP3205745B2 |
A hot-rolling roll excellent in wear and seizure resistances, which has a composition by weight consisting of 2.0 - 4.0 % of carbon, 0.5 - 4.0 % of silicon, 0.1 - 1.5 % of manganese, 1.0 - 7.0 % chromium, 2.0 - 10 % of molybdenum, 2.0 - ...
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JP3206093B2 |
PURPOSE: To produce a roll for rolling having a fine metallic structure and an outer shell layer excellent in homogeneity. CONSTITUTION: The roll is formed by forming an outer shell layer by using a cast iron material having a compositio...
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JP2001232406A |
To provide a manufacturing method of a composite rolling roll without defective welding or the like by expanding the condition range that an outer layer and an inner layer are weldable.In the composite rolling roll provided with the oute...
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JP2001234274A |
To provide a composition roll for hot rolling remarkably improved in wear resistance without deteriorating the characteristics of burning resistance and accicident resistance of a roll using a high alloy grain cast iron material.In this ...
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JP3202301B2 |
PURPOSE: To provide an ideal rotary type fluid compressor in terms of compatibility between the mutual properties on the wearing to a roller and a vane groove by making the vane having stable quality, in which a compound layer is easily ...
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JP3202300B2 |
PURPOSE: To form a vane in which a compound layer is easy to form on the surface and the control of its layer thickness is easy and excellent in wear resistance and dimension stability and dimensional dispersion, and to provide a rotary ...
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JP2001220640A |
To provide a spheroidal graphite cost iron member having a high Young's modulus in a structural member such as a crank shaft.In this spheroidal graphite cast iron, the base structure of is essentially consisting of a ferritic phase or a ...
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JP2001214990A |
To realize a thin outer layer wall of a centrifugally cast bent pipe for solid matter transport with an inner layer formed from high-Cr cast iron and an outer layer formed from well-weldable carbon steel or the like.The pipe for solid ma...
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JP2001214233A |
To provide a spheroidal graphite cast iron member having excellent rigidity and impact resistance even though having a thin part.In this spheroidal graphite cast iron member having a thin part with a thickness of 1 cm or less is composed...
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JP2001207218A |
To provide a cast iron member excellent in pitting resistance by changing the ferritic phase of a cast iron member into a phase having high strength by heat treatment and to provide a method for producing the same. A cam shaft is held un...
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JP2001200330A |
To provide a cast iron material excellent in vibration damping capacity in which vibration damping capacity is increased and to provide a method for producing the same. This cast iron material excellent in vibration damping capacity has ...
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JP2001181779A |
To provide a CV graphite cast iron for an engine improving the low strength and brittleness of grey cast iron used as the material for an engine, increasing the mechanical properties such as tensile strength, yield strength, an elastic m...
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JP2001172735A |
To produce sliding parts using ADI cast iron having high strength and low frictional properties and excellent in wear resistance in a short time.Sliding parts as the object for heat treatment are stored into a reaction furnace, are heate...
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JP2001150007A |
To provide a surface layer for a reduction roll of which the degree of carbon matter dispersion is narrow and it almost has not any segregation looking like an annual growth ring.A centrifugal foundry process forms the surface layer that...
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JP2001150005A |
To provide a method for manufacturing a surface layer of reduction roll of which the material is homogeneous and which is free from any segregation looking like annual growth ring and any crude and large dendrite.A centrifugal foundry pr...
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JP3172337B2 |
PURPOSE: To realize a compressor provided with an improved roller congenial to a vane even with HFC group fleon as refrigerant so as to reduce the mutual wear of the sliding face and able to stand long-term operation. CONSTITUTION: A rol...
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JP2001129640A |
To provide thin and flat, especially circular or ring-shaped cast articles excellent in wear resistance and heat resistance, with small primary dendrite arm spacing and free from any casting defects by stack molding process. A chiller is...
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JP2001123241A |
To produce a rotor for a disk brake satisfying the strength to be required as that of a brake rotor for a large commercial car, moreover having high damping property and also excellent in thermal cracking resistance or the like and to pr...
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JP3163561B2 |
PURPOSE: To produce a composite roll which has excellent wear resistance and thermal impact resistance and has no possibility of chipping with shortened stages at a low cost. CONSTITUTION: A composite roll blank consisting of an alloy ca...
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JP3160623B1 |
[wrap up] [Task] Provided is a cast iron material having an inclined structure. Rotational stirring is performed while controlling the stirring speed in the semi-solidified state of the molten cast iron, and at this time, the crystallize...
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JP3160624B1 |
[wrap up] [Task] Manufactures hypereutectic cast iron with excellent mechanical strength and wear resistance. The molten metal made of hypereutectic cast iron is cooled and stirred in a semi-solidified state during the solidification pro...
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JP2001107173A |
To provide a roller for a rotary compressor having excellent wear resistance. This roller for a rotary compressor is composed of cast iron having a composition containing, by weight, 0.50 to 1.00% Mn, 0.50 to 1.20% Cr and 0.15 to 0.40% M...
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JP2001105036A |
To provide a two-layer bend pipe having high wear resistance which is useful as a piping material for transporting solid materials of the like and its manufacturing method. This two-layer bend pipe is a hot press-bent pipe taking a centr...
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JP3153610B2 |
PURPOSE: To improve wear resistance and cracking resistance by specifying respective contents of C, V, Cr, Mo, W, and Co. CONSTITUTION: A composition which consists of 1-2.5% C, 3-10% V, one or more elements among Cr, Mo, W, and Co, and ...
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