METHOD AND APPARATUS FOR HEAT TREATING RAILS
The invention relates to the iron and steel industry, more specifically to methods and devices for heat treating of railway rails. The method for heat treating of a rail includes preheating, postheating, and cooling. The technical result is achieved by means of heating that is carried out continuous...
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| creator | KHLYST, Sergey Vasilievich KHLYST, Ilya Sergeevich GALITSYN, Georgy Alexandrovich SERGEEV, Sergey Mikhaylovich KOZHEVNIKOV, Konstantin Gennadievich KUSHNAREV, Alexey Vladislavovich GONTAR, Alexey Vladimirovich IVANOV, Alexey Gennadievich KIRICHKOV, Anatoliy Alexandrovich PSHENICHNIKOV, Pavel Alexandrovich KUZMICHENKO, Vladimir Mikhaylovich SHESTAKOV, Andrey Nikolaevich KIRICHENKO, Mikhail Nikolaevich |
| description | The invention relates to the iron and steel industry, more specifically to methods and devices for heat treating of railway rails. The method for heat treating of a rail includes preheating, postheating, and cooling. The technical result is achieved by means of heating that is carried out continuously and/or intermittently according to a programmed mode. Preheating is carried out to the austenitization start temperature (point Ac 1 ) without exceeding the austenitization end temperature (point Ac 3 ). Postheating is carried out by thermal cycling in the ±-³ phase transformation region. In the intervals between individual heating devices, retention is carried out to equalize the temperature over each cross-section. The cooling speed is changed at different stages of the cooling mode. The claimed method is carried out on the proposed apparatus, which comprises a preheating zone, a thermal cycling zone, a homogenization zone with individual heating devices having intervals and/or devices therebetween for equalizing the temperature over a cross-section, a cooling zone containing cooling modules with a unit for controlling and adjusting the cooling parameters, and a self-tempering zone. The technical result of the invention consists in improved physical and mechanical properties, a rail head contact surface hardness of up to 415 HB, and increased service life of the rail. The rail is of the required straightness after heat treatment, making it possible to exclude straightening in a roller straightening machine. The range of adjustment of the heating and cooling speeds is extended, making it possible to heat treat rails made from different grades of steel. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP2700724B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP2700724B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP2700724B13</originalsourceid><addsrcrecordid>eNrjZNDxdQ3x8HdRcPQD4oAAxyDHkNBgBTf_IAUPV8cQhZAgIOnp564Q5OjpE8zDwJqWmFOcyguluRkU3FxDnD10Uwvy41OLCxKTU_NSS-JdA4zMDQzMjUycDI2JUAIAOogkkA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>METHOD AND APPARATUS FOR HEAT TREATING RAILS</title><source>esp@cenet</source><creator>KHLYST, Sergey Vasilievich ; KHLYST, Ilya Sergeevich ; GALITSYN, Georgy Alexandrovich ; SERGEEV, Sergey Mikhaylovich ; KOZHEVNIKOV, Konstantin Gennadievich ; KUSHNAREV, Alexey Vladislavovich ; GONTAR, Alexey Vladimirovich ; IVANOV, Alexey Gennadievich ; KIRICHKOV, Anatoliy Alexandrovich ; PSHENICHNIKOV, Pavel Alexandrovich ; KUZMICHENKO, Vladimir Mikhaylovich ; SHESTAKOV, Andrey Nikolaevich ; KIRICHENKO, Mikhail Nikolaevich</creator><creatorcontrib>KHLYST, Sergey Vasilievich ; KHLYST, Ilya Sergeevich ; GALITSYN, Georgy Alexandrovich ; SERGEEV, Sergey Mikhaylovich ; KOZHEVNIKOV, Konstantin Gennadievich ; KUSHNAREV, Alexey Vladislavovich ; GONTAR, Alexey Vladimirovich ; IVANOV, Alexey Gennadievich ; KIRICHKOV, Anatoliy Alexandrovich ; PSHENICHNIKOV, Pavel Alexandrovich ; KUZMICHENKO, Vladimir Mikhaylovich ; SHESTAKOV, Andrey Nikolaevich ; KIRICHENKO, Mikhail Nikolaevich</creatorcontrib><description>The invention relates to the iron and steel industry, more specifically to methods and devices for heat treating of railway rails. The method for heat treating of a rail includes preheating, postheating, and cooling. The technical result is achieved by means of heating that is carried out continuously and/or intermittently according to a programmed mode. Preheating is carried out to the austenitization start temperature (point Ac 1 ) without exceeding the austenitization end temperature (point Ac 3 ). Postheating is carried out by thermal cycling in the ±-³ phase transformation region. In the intervals between individual heating devices, retention is carried out to equalize the temperature over each cross-section. The cooling speed is changed at different stages of the cooling mode. The claimed method is carried out on the proposed apparatus, which comprises a preheating zone, a thermal cycling zone, a homogenization zone with individual heating devices having intervals and/or devices therebetween for equalizing the temperature over a cross-section, a cooling zone containing cooling modules with a unit for controlling and adjusting the cooling parameters, and a self-tempering zone. The technical result of the invention consists in improved physical and mechanical properties, a rail head contact surface hardness of up to 415 HB, and increased service life of the rail. The rail is of the required straightness after heat treatment, making it possible to exclude straightening in a roller straightening machine. The range of adjustment of the heating and cooling speeds is extended, making it possible to heat treat rails made from different grades of steel.</description><language>eng ; fre ; ger</language><subject>BLASTING ; CHEMISTRY ; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ; FURNACES ; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; HEATING ; KILNS ; LIGHTING ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; OPEN SINTERING OR LIKE APPARATUS ; OVENS ; RETORTS ; WEAPONS</subject><creationdate>2022</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=20220420&DB=EPODOC&CC=EP&NR=2700724B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220420&DB=EPODOC&CC=EP&NR=2700724B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KHLYST, Sergey Vasilievich</creatorcontrib><creatorcontrib>KHLYST, Ilya Sergeevich</creatorcontrib><creatorcontrib>GALITSYN, Georgy Alexandrovich</creatorcontrib><creatorcontrib>SERGEEV, Sergey Mikhaylovich</creatorcontrib><creatorcontrib>KOZHEVNIKOV, Konstantin Gennadievich</creatorcontrib><creatorcontrib>KUSHNAREV, Alexey Vladislavovich</creatorcontrib><creatorcontrib>GONTAR, Alexey Vladimirovich</creatorcontrib><creatorcontrib>IVANOV, Alexey Gennadievich</creatorcontrib><creatorcontrib>KIRICHKOV, Anatoliy Alexandrovich</creatorcontrib><creatorcontrib>PSHENICHNIKOV, Pavel Alexandrovich</creatorcontrib><creatorcontrib>KUZMICHENKO, Vladimir Mikhaylovich</creatorcontrib><creatorcontrib>SHESTAKOV, Andrey Nikolaevich</creatorcontrib><creatorcontrib>KIRICHENKO, Mikhail Nikolaevich</creatorcontrib><title>METHOD AND APPARATUS FOR HEAT TREATING RAILS</title><description>The invention relates to the iron and steel industry, more specifically to methods and devices for heat treating of railway rails. The method for heat treating of a rail includes preheating, postheating, and cooling. The technical result is achieved by means of heating that is carried out continuously and/or intermittently according to a programmed mode. Preheating is carried out to the austenitization start temperature (point Ac 1 ) without exceeding the austenitization end temperature (point Ac 3 ). Postheating is carried out by thermal cycling in the ±-³ phase transformation region. In the intervals between individual heating devices, retention is carried out to equalize the temperature over each cross-section. The cooling speed is changed at different stages of the cooling mode. The claimed method is carried out on the proposed apparatus, which comprises a preheating zone, a thermal cycling zone, a homogenization zone with individual heating devices having intervals and/or devices therebetween for equalizing the temperature over a cross-section, a cooling zone containing cooling modules with a unit for controlling and adjusting the cooling parameters, and a self-tempering zone. The technical result of the invention consists in improved physical and mechanical properties, a rail head contact surface hardness of up to 415 HB, and increased service life of the rail. The rail is of the required straightness after heat treatment, making it possible to exclude straightening in a roller straightening machine. The range of adjustment of the heating and cooling speeds is extended, making it possible to heat treat rails made from different grades of steel.</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</subject><subject>FURNACES</subject><subject>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>HEATING</subject><subject>KILNS</subject><subject>LIGHTING</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>OPEN SINTERING OR LIKE APPARATUS</subject><subject>OVENS</subject><subject>RETORTS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDxdQ3x8HdRcPQD4oAAxyDHkNBgBTf_IAUPV8cQhZAgIOnp564Q5OjpE8zDwJqWmFOcyguluRkU3FxDnD10Uwvy41OLCxKTU_NSS-JdA4zMDQzMjUycDI2JUAIAOogkkA</recordid><startdate>20220420</startdate><enddate>20220420</enddate><creator>KHLYST, Sergey Vasilievich</creator><creator>KHLYST, Ilya Sergeevich</creator><creator>GALITSYN, Georgy Alexandrovich</creator><creator>SERGEEV, Sergey Mikhaylovich</creator><creator>KOZHEVNIKOV, Konstantin Gennadievich</creator><creator>KUSHNAREV, Alexey Vladislavovich</creator><creator>GONTAR, Alexey Vladimirovich</creator><creator>IVANOV, Alexey Gennadievich</creator><creator>KIRICHKOV, Anatoliy Alexandrovich</creator><creator>PSHENICHNIKOV, Pavel Alexandrovich</creator><creator>KUZMICHENKO, Vladimir Mikhaylovich</creator><creator>SHESTAKOV, Andrey Nikolaevich</creator><creator>KIRICHENKO, Mikhail Nikolaevich</creator><scope>EVB</scope></search><sort><creationdate>20220420</creationdate><title>METHOD AND APPARATUS FOR HEAT TREATING RAILS</title><author>KHLYST, Sergey Vasilievich ; KHLYST, Ilya Sergeevich ; GALITSYN, Georgy Alexandrovich ; SERGEEV, Sergey Mikhaylovich ; KOZHEVNIKOV, Konstantin Gennadievich ; KUSHNAREV, Alexey Vladislavovich ; GONTAR, Alexey Vladimirovich ; IVANOV, Alexey Gennadievich ; KIRICHKOV, Anatoliy Alexandrovich ; PSHENICHNIKOV, Pavel Alexandrovich ; KUZMICHENKO, Vladimir Mikhaylovich ; SHESTAKOV, Andrey Nikolaevich ; KIRICHENKO, Mikhail Nikolaevich</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2700724B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2022</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</topic><topic>FURNACES</topic><topic>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>HEATING</topic><topic>KILNS</topic><topic>LIGHTING</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>OPEN SINTERING OR LIKE APPARATUS</topic><topic>OVENS</topic><topic>RETORTS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>KHLYST, Sergey Vasilievich</creatorcontrib><creatorcontrib>KHLYST, Ilya Sergeevich</creatorcontrib><creatorcontrib>GALITSYN, Georgy Alexandrovich</creatorcontrib><creatorcontrib>SERGEEV, Sergey Mikhaylovich</creatorcontrib><creatorcontrib>KOZHEVNIKOV, Konstantin Gennadievich</creatorcontrib><creatorcontrib>KUSHNAREV, Alexey Vladislavovich</creatorcontrib><creatorcontrib>GONTAR, Alexey Vladimirovich</creatorcontrib><creatorcontrib>IVANOV, Alexey Gennadievich</creatorcontrib><creatorcontrib>KIRICHKOV, Anatoliy Alexandrovich</creatorcontrib><creatorcontrib>PSHENICHNIKOV, Pavel Alexandrovich</creatorcontrib><creatorcontrib>KUZMICHENKO, Vladimir Mikhaylovich</creatorcontrib><creatorcontrib>SHESTAKOV, Andrey Nikolaevich</creatorcontrib><creatorcontrib>KIRICHENKO, Mikhail Nikolaevich</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KHLYST, Sergey Vasilievich</au><au>KHLYST, Ilya Sergeevich</au><au>GALITSYN, Georgy Alexandrovich</au><au>SERGEEV, Sergey Mikhaylovich</au><au>KOZHEVNIKOV, Konstantin Gennadievich</au><au>KUSHNAREV, Alexey Vladislavovich</au><au>GONTAR, Alexey Vladimirovich</au><au>IVANOV, Alexey Gennadievich</au><au>KIRICHKOV, Anatoliy Alexandrovich</au><au>PSHENICHNIKOV, Pavel Alexandrovich</au><au>KUZMICHENKO, Vladimir Mikhaylovich</au><au>SHESTAKOV, Andrey Nikolaevich</au><au>KIRICHENKO, Mikhail Nikolaevich</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND APPARATUS FOR HEAT TREATING RAILS</title><date>2022-04-20</date><risdate>2022</risdate><abstract>The invention relates to the iron and steel industry, more specifically to methods and devices for heat treating of railway rails. The method for heat treating of a rail includes preheating, postheating, and cooling. The technical result is achieved by means of heating that is carried out continuously and/or intermittently according to a programmed mode. Preheating is carried out to the austenitization start temperature (point Ac 1 ) without exceeding the austenitization end temperature (point Ac 3 ). Postheating is carried out by thermal cycling in the ±-³ phase transformation region. In the intervals between individual heating devices, retention is carried out to equalize the temperature over each cross-section. The cooling speed is changed at different stages of the cooling mode. The claimed method is carried out on the proposed apparatus, which comprises a preheating zone, a thermal cycling zone, a homogenization zone with individual heating devices having intervals and/or devices therebetween for equalizing the temperature over a cross-section, a cooling zone containing cooling modules with a unit for controlling and adjusting the cooling parameters, and a self-tempering zone. The technical result of the invention consists in improved physical and mechanical properties, a rail head contact surface hardness of up to 415 HB, and increased service life of the rail. The rail is of the required straightness after heat treatment, making it possible to exclude straightening in a roller straightening machine. The range of adjustment of the heating and cooling speeds is extended, making it possible to heat treat rails made from different grades of steel.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS HEATING KILNS LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS OPEN SINTERING OR LIKE APPARATUS OVENS RETORTS WEAPONS |
| title | METHOD AND APPARATUS FOR HEAT TREATING RAILS |
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