Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel
The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-res...
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creator | MIN GUANGZHONG |
description | The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-resistant steel in an electric furnace for three-time solution treatment; and c, detecting the mechanical properties of the 4Cr14Ni14W2Mo heat-resistant steel after solution treatment and selecting steel, the grain size of which is 8-10 grades, which is free of slip line in crystal and the quantity ofcrystal twin of which is smaller than or equal to 15%, for later use; and ionitriding treatment: cleaning surface dirt of the selected 4Cr14Ni14W2Mo heat-resistant steel with the cleaner, and removingburrs, and then carrying out ionitriding; and finally, carrying out inflation and blowing-in of the furnace. The process disclosed by the invention has the characteristics of being capable of solvingthe above technical proble |
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The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-resistant steel in an electric furnace for three-time solution treatment; and c, detecting the mechanical properties of the 4Cr14Ni14W2Mo heat-resistant steel after solution treatment and selecting steel, the grain size of which is 8-10 grades, which is free of slip line in crystal and the quantity ofcrystal twin of which is smaller than or equal to 15%, for later use; and ionitriding treatment: cleaning surface dirt of the selected 4Cr14Ni14W2Mo heat-resistant steel with the cleaner, and removingburrs, and then carrying out ionitriding; and finally, carrying out inflation and blowing-in of the furnace. The process disclosed by the invention has the characteristics of being capable of solvingthe above technical proble</description><language>chi ; eng</language><subject>ALLOYS ; 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 ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180309&DB=EPODOC&CC=CN&NR=107779810A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,782,887,25571,76555</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180309&DB=EPODOC&CC=CN&NR=107779810A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MIN GUANGZHONG</creatorcontrib><title>Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel</title><description>The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-resistant steel in an electric furnace for three-time solution treatment; and c, detecting the mechanical properties of the 4Cr14Ni14W2Mo heat-resistant steel after solution treatment and selecting steel, the grain size of which is 8-10 grades, which is free of slip line in crystal and the quantity ofcrystal twin of which is smaller than or equal to 15%, for later use; and ionitriding treatment: cleaning surface dirt of the selected 4Cr14Ni14W2Mo heat-resistant steel with the cleaner, and removingburrs, and then carrying out ionitriding; and finally, carrying out inflation and blowing-in of the furnace. The process disclosed by the invention has the characteristics of being capable of solvingthe above technical proble</description><subject>ALLOYS</subject><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>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAJKMpPTi0uVshPUygszUzOzqlUyMzPyywpykzJzEsHCZs4Fxma-GUamoQb-eYrZKQmlugWpRZnFpck5pUoFJekpubwMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4Zz9DA3Nzc0sLQwNHY2LUAAA0WDG-</recordid><startdate>20180309</startdate><enddate>20180309</enddate><creator>MIN GUANGZHONG</creator><scope>EVB</scope></search><sort><creationdate>20180309</creationdate><title>Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel</title><author>MIN GUANGZHONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN107779810A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</creationdate><topic>ALLOYS</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>MIN GUANGZHONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MIN GUANGZHONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel</title><date>2018-03-09</date><risdate>2018</risdate><abstract>The invention discloses a process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel. The process comprises the following steps: tempering treatment before nitriding: a, cleaning the 4Cr14Ni14W2Mo heat-resistant steel thoroughly with a cleaner; b, putting the cleaned 4Cr14Ni14W2Mo heat-resistant steel in an electric furnace for three-time solution treatment; and c, detecting the mechanical properties of the 4Cr14Ni14W2Mo heat-resistant steel after solution treatment and selecting steel, the grain size of which is 8-10 grades, which is free of slip line in crystal and the quantity ofcrystal twin of which is smaller than or equal to 15%, for later use; and ionitriding treatment: cleaning surface dirt of the selected 4Cr14Ni14W2Mo heat-resistant steel with the cleaner, and removingburrs, and then carrying out ionitriding; and finally, carrying out inflation and blowing-in of the furnace. The process disclosed by the invention has the characteristics of being capable of solvingthe above technical proble</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS |
title | Process of quickly ionitriding of 4Cr14Ni14W2Mo heat-resistant steel |
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