METHOD FOR JUDGING MOLTEN SOLID OF WELD PART WITH USING ULTRASONIC FLAW DETECTION APPARATUS
PROBLEM TO BE SOLVED: To judge whether or not a molten solid (nugget (n)) is formed at a welded part by a nondestructive inspection. SOLUTION: According to this judgment method, a joint member formed by welding two metallic members m1, m2 is used as a material M to be inspected, ultrasonic waves are...
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| creator | SHINAGAWA NORIO KAWABATA KATSUYUKI |
| description | PROBLEM TO BE SOLVED: To judge whether or not a molten solid (nugget (n)) is formed at a welded part by a nondestructive inspection. SOLUTION: According to this judgment method, a joint member formed by welding two metallic members m1, m2 is used as a material M to be inspected, ultrasonic waves are emitted from a probe 10 and an attenuation state of the ultrasonic waves passing a weld part and reflected at a lower face M2 is observed, whereby it is judged whether a molten solid (nugget (n)) is formed or whether the material M is cold jointed. The molten solid generated by the welding increases a crystal particle size due to the re-solidification, and the ultrasonic waves propagating the part are attenuated larger than a cold joint without the molten solid. Whether it is the molten solid or cold joint can be surely judged by observing and evaluating a state of the attenuation. |
| format | Patent |
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SOLUTION: According to this judgment method, a joint member formed by welding two metallic members m1, m2 is used as a material M to be inspected, ultrasonic waves are emitted from a probe 10 and an attenuation state of the ultrasonic waves passing a weld part and reflected at a lower face M2 is observed, whereby it is judged whether a molten solid (nugget (n)) is formed or whether the material M is cold jointed. The molten solid generated by the welding increases a crystal particle size due to the re-solidification, and the ultrasonic waves propagating the part are attenuated larger than a cold joint without the molten solid. 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SOLUTION: According to this judgment method, a joint member formed by welding two metallic members m1, m2 is used as a material M to be inspected, ultrasonic waves are emitted from a probe 10 and an attenuation state of the ultrasonic waves passing a weld part and reflected at a lower face M2 is observed, whereby it is judged whether a molten solid (nugget (n)) is formed or whether the material M is cold jointed. The molten solid generated by the welding increases a crystal particle size due to the re-solidification, and the ultrasonic waves propagating the part are attenuated larger than a cold joint without the molten solid. Whether it is the molten solid or cold joint can be surely judged by observing and evaluating a state of the attenuation.</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>MEASURING ANGLES</subject><subject>MEASURING AREAS</subject><subject>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</subject><subject>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyj0KwjAUAOAsDqLe4XkAh7agriE_TUqaF5oXMjiUInESLdT7o4IHcPqWb80uvSKDEjQO0CXZWt9Cj46Uh4jOSkANWTkJgQ8E2ZKBFL8pORp4RG8FaMczSEVKkEUPPHwupxS3bHWb7kvZ_dywvVYkzKHMz7Es83Qtj_Iau2CqqqmP9fnEm3_OG4TPMlI</recordid><startdate>19991126</startdate><enddate>19991126</enddate><creator>SHINAGAWA NORIO</creator><creator>KAWABATA KATSUYUKI</creator><scope>EVB</scope></search><sort><creationdate>19991126</creationdate><title>METHOD FOR JUDGING MOLTEN SOLID OF WELD PART WITH USING ULTRASONIC FLAW DETECTION APPARATUS</title><author>SHINAGAWA NORIO ; KAWABATA KATSUYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11326287A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>MEASURING ANGLES</topic><topic>MEASURING AREAS</topic><topic>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</topic><topic>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SHINAGAWA NORIO</creatorcontrib><creatorcontrib>KAWABATA KATSUYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHINAGAWA NORIO</au><au>KAWABATA KATSUYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR JUDGING MOLTEN SOLID OF WELD PART WITH USING ULTRASONIC FLAW DETECTION APPARATUS</title><date>1999-11-26</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To judge whether or not a molten solid (nugget (n)) is formed at a welded part by a nondestructive inspection. SOLUTION: According to this judgment method, a joint member formed by welding two metallic members m1, m2 is used as a material M to be inspected, ultrasonic waves are emitted from a probe 10 and an attenuation state of the ultrasonic waves passing a weld part and reflected at a lower face M2 is observed, whereby it is judged whether a molten solid (nugget (n)) is formed or whether the material M is cold jointed. The molten solid generated by the welding increases a crystal particle size due to the re-solidification, and the ultrasonic waves propagating the part are attenuated larger than a cold joint without the molten solid. Whether it is the molten solid or cold joint can be surely judged by observing and evaluating a state of the attenuation.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING |
| title | METHOD FOR JUDGING MOLTEN SOLID OF WELD PART WITH USING ULTRASONIC FLAW DETECTION APPARATUS |
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