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Patent Searching and Data


Matches 601 - 650 out of 3,360

Document Document Title
JP2012201975A
To provide an austenitic stainless steel pipe excellent in water vapor oxidation resistance by determining quality of shot processing based on measurement of surface roughness on the inner surface of the pipe.In the austenitic stainless ...  
JP2012200840A
To provide a heat conducting member in which a residual tensile stress in a metal tube is reduced when a tubular ceramic body is covered with the metal tube.This heat conducting member 10 includes a tubular ceramic body 11 having a fluid...  
JP5049133B2  
JP2012193394A
To provide a high face-pressure component which makes soft-solid lubrication powder efficiently adhere to a soft metal membrane having slide performance by performing shot peening by using mixed powder after a steel ball and a soft metal...  
JP5044712B1  
JP5039311B2  
JP2012184463A
To provide a spring which achieves a reduction in the material cost and simplification of the manufacturing process, and is excellent in fatigue endurance, and to provide a method for manufacturing the spring.The spring is characterized ...  
JP2012179656A
To provide a method for making a clad material with a substrate having strength larger than that of a cladding material.The method includes a step for preparing an assembly 10 by welding a clad material and a substrate 12 where an edge o...  
JP5029788B1  
JP2012176437A
To provide a fatigue strength improving method for improving fatigue strength of a weld part of a steel structure like a steel bridge suitable for hammer peening by introducing a compressive residual stress without imparting any deformat...  
JP2012167328A
To provide a welded steel pipe which can be manufactured with high productivity and is excellent in collapse strength with excellent toughness, without reducing allowable degree of pipe making and coating conditions by using a steel pipe...  
JP5020884B2  
JP5020843B2  
JP2012519780A  
JP5005409B2  
JP2012153977A
To provide a laser peening treatment method for improving fatigue property more than the conventional methods in an environment where repeated loads act on a weld toe portion of a weld structure and a plastic deformation region of a form...  
JP2012144752A
To provide a spring having excellent corrosion fatigue strength, though having high strength.The spring has Rockwell hardness of HRC 53 to HRC 56, and when the Rockwell hardness of the spring is defined as H, in the range of the Rockwell...  
JP4990467B2  
JP4985644B2  
JP4987773B2  
JP4987772B2  
JP2012135864A
To improve the surface roughness of a metal product, surely form uniform nano-scale microstructures on a surface layer, and form a surface layer robust enough not to disappear due to wear on the surface layer.Instantaneous rapid heating ...  
JP4977234B2  
JP2012132097A
To provide: a spring which can secure high rigidity, high toughness and a high strength ratio even if tempering treatment after quenching is eliminated; a spring steel wire used for the spring; and spring steel.This spring steel contains...  
JP4970811B2  
JP4969325B2  
JP2012117095A
To provide a method for improving fatigue strength that can improve the fatigue strength of cast iron material, specifically spherical graphite cast iron, to the same level as that of carbon steel subjected to carburizing and quenching.T...  
JP2012117091A
To provide a steel wire for a high strength spring by which breakage is suppressed during coiling and from which a high strength spring having excellent durability and settling resistance is obtained after coiling.The steel wire for the ...  
JP2012115881A
To provide a method for improving fatigue strength capable of improving the fatigue strength of a cast iron material, specifically spherical graphite cast iron to the same level as that of carbon steel subjected to carburizing and quench...  
JP2012115925A
To provide a method for improving a fatigue strength which can improve the fatigue strength of a cast iron material, particularly spheroidal graphite cast iron, to the same degree as carburized and quenched carbon steel.The method includ...  
JP2012117119A
To provide a method of ultrasonic impact processing for a coil spring, reducing processing time while uniformly applying compressive residual stress on an inner circumferential surface of a coil spring and capable of achieving improvemen...  
JP2012117092A
To provide a high strength spring which has high settling resistance and durability and is used in a power train of an automobile.The high strength spring contains 0.50-0.70 mass% of C, 1.80-2.20 mass% of Si, 0.50-0.80 mass% of Mn, 0.50-...  
JP4957362B2  
JP4959108B2  
JP2012111992A
To provide a spring that has excellent fatigue resistance, reduces material costs and simplifies manufacturing processes.A method for manufacturing the spring includes: a shaping step of shaping a wire rod having components consisting of...  
JP2012110978A
To provide both high hardness and crystal grain refinement, in shot peening which is a simple and inexpensive surface treatment.The apparatus includes: an induction heating coil 130 for heating a workpiece W; a high-frequency applying de...  
JP4952862B2  
JP2012512992A  
JP2012102378A
To provide an inexpensive steel for a high strength spring excellent in corrosion resistance and pitting corrosion resistance and having a low amount of alloy elements added, to provide a method for producing the high strength spring, an...  
JP4938603B2  
JP2012087356A
To provide autofrettage processing capable of reducing, as much as possible, wear and tear of a part caused by abrasion.The autofrettage processing device applies the autofrettage processing to a workpiece, in which before pressurization...  
JP4926384B2  
JP2012077382A
To provide a ferritic stainless steel welded pipe excellent in expanding workability free from a crack in pipe expansion working occurring at a welding part or near the welding part in the pipe expansion working of two times or more of a...  
JP4918199B2  
JP2012072497A
To provide a hot-rolled steel sheet for chemical conversion treatment inexpensively, and to provide a method for manufacturing the same.The hot-rolled steel sheet for chemical conversion treatment includes, by mass, 0.01-0.10% C, 0.01-2....  
JP4916364B2  
JP4916365B2  
JP4912385B2  
JP4909304B2  
JP4909247B2  

Matches 601 - 650 out of 3,360