CARBURIZATION DETECTION METHOD
PROBLEM TO BE SOLVED: To provide a carburization detection method capable of detecting even fine carburization which is hardly detected by a conventional carburization detection method.SOLUTION: The carburization detection method includes: inserting a carburized material P0 whose carburization on a...
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| creator | TAKIMOTO GIICHI HYODO SHIGETOSHI |
| description | PROBLEM TO BE SOLVED: To provide a carburization detection method capable of detecting even fine carburization which is hardly detected by a conventional carburization detection method.SOLUTION: The carburization detection method includes: inserting a carburized material P0 whose carburization on a tube inner surface is already known into an excitation coil 11 and a detection coil 12; determining a value of a parameter K represented by an expression (1) of K=(I N/L) F, where I(A) is a current value of an excitation current supplied to the excitation coil, L is a length (mm) of the excitation coil, N is the number of turns of the excitation coil, and F is a frequency (kHz) of the excitation current supplied to the excitation coil, so that carburization occurring to the carburized material can be detected based upon an output signal from the detection coil; then setting a condition of the excitation coil so as to obtain the value of the parameter K; and then detecting whether carburization is caused on the tube inner surface of the object to be inspected. |
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determining a value of a parameter K represented by an expression (1) of K=(I N/L) F, where I(A) is a current value of an excitation current supplied to the excitation coil, L is a length (mm) of the excitation coil, N is the number of turns of the excitation coil, and F is a frequency (kHz) of the excitation current supplied to the excitation coil, so that carburization occurring to the carburized material can be detected based upon an output signal from the detection coil; then setting a condition of the excitation coil so as to obtain the value of the parameter K; and then detecting whether carburization is caused on the tube inner surface of the object to be inspected.</description><language>eng</language><subject>CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; 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determining a value of a parameter K represented by an expression (1) of K=(I N/L) F, where I(A) is a current value of an excitation current supplied to the excitation coil, L is a length (mm) of the excitation coil, N is the number of turns of the excitation coil, and F is a frequency (kHz) of the excitation current supplied to the excitation coil, so that carburization occurring to the carburized material can be detected based upon an output signal from the detection coil; then setting a condition of the excitation coil so as to obtain the value of the parameter K; and then detecting whether carburization is caused on the tube inner surface of the object to be inspected.</description><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><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>METALLURGY</subject><subject>PHYSICS</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBzdgxyCg3yjHIM8fT3U3BxDXF1BrN8XUM8_F14GFjTEnOKU3mhNDeDkptriLOHbmpBfnxqcUFicmpeakm8V4CRgaGxgaWRiaGFozFRigAHZiHy</recordid><startdate>20130516</startdate><enddate>20130516</enddate><creator>TAKIMOTO GIICHI</creator><creator>HYODO SHIGETOSHI</creator><scope>EVB</scope></search><sort><creationdate>20130516</creationdate><title>CARBURIZATION DETECTION METHOD</title><author>TAKIMOTO GIICHI ; 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determining a value of a parameter K represented by an expression (1) of K=(I N/L) F, where I(A) is a current value of an excitation current supplied to the excitation coil, L is a length (mm) of the excitation coil, N is the number of turns of the excitation coil, and F is a frequency (kHz) of the excitation current supplied to the excitation coil, so that carburization occurring to the carburized material can be detected based upon an output signal from the detection coil; then setting a condition of the excitation coil so as to obtain the value of the parameter K; and then detecting whether carburization is caused on the tube inner surface of the object to be inspected.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL 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 METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TESTING |
| title | CARBURIZATION DETECTION METHOD |
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