METHOD FOR PROCESSING CYLINDRICAL SURFACES OF SAPPHIRE PARTS, A SAPPHIRE PISTON PAIR AND A METERING PUMP ON THE BASIS THEREOF
The invention relates to piston pairs and metering pumps on the basis thereof, to the manufacture of devices and parts thereof, and in particular to a method for processing cylindrical surfaces of parts consisting of a crystal on the basis of α-modification of aluminium oxide. The piston pair compri...
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| description | The invention relates to piston pairs and metering pumps on the basis thereof, to the manufacture of devices and parts thereof, and in particular to a method for processing cylindrical surfaces of parts consisting of a crystal on the basis of α-modification of aluminium oxide. The piston pair comprises an outer and an inner parts consisting of a crystal on the basis of the modification of aluminium oxide, preferably a monocrystal of leucosapphire with a roughness of the contact working surfaces Ra of 2-5 Angstroem. Smoothness of the surface is achieved by a processing method comprising drilling of preliminary semifinished products of parts consisting of a crystal with the aid of a diamond tool, three-stage mechanical processing of the surface with the diamond tool in the presence of cutting fluids and then decreasing the grain size of the abrasive, removing the internal stress in the semifinished products by means of an annealing method in a muffle furnace, processing the surface using a semi-soft or soft buffing wheel or a lapping tool with a diamond grain size of 5/3 and/or 1/0 μm using jeweller's rouge, and tribochemical polishing of the surface using a polishing material on the basis of colloidal SiO. The invention makes it possible to increase the service life of piston pairs used in metering pumps and to maintain for a longer period of time the accuracy of metering of metered liquids by virtue of reducing the coefficient of friction of rubbing surfaces.
Изобретение относится к плунжерным парам и насосам-дозаторам на их основе, к изготовлению устройств и их частей, в частности к способу обработки цилиндрических поверхностей деталей из кристалла на основе α-модификации оксида алюминия. Плунжерная пара содержит наружную и внутреннюю детали из кристалла на основе α-модификации оксида алюминия, предпочтительно монокристалла лейкосапфира, с шероховатостью контактирующих рабочих поверхностей Ra 2-5 Å. Гладкость поверхности достигается способом обработки, включающем высверливание предварительных заготовок деталей из кристалла при помощи алмазного инструмента, трехступенчатую механическую обработку поверхности алмазным инструментом в присутствии смазочно-охлаждающих жидкостей с последовательным убыванием величины зерна абразива, снятие внутреннего напряжения в заготовках методом отжига в муфельной печи, обработку поверхности полумягким или мягким полировальным кругом или притиром с алмазным зерном 5/3 мкм и/или 1/0 мкм на часовом масле, трибохимическое полиро |
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Изобретение относится к плунжерным парам и насосам-дозаторам на их основе, к изготовлению устройств и их частей, в частности к способу обработки цилиндрических поверхностей деталей из кристалла на основе α-модификации оксида алюминия. Плунжерная пара содержит наружную и внутреннюю детали из кристалла на основе α-модификации оксида алюминия, предпочтительно монокристалла лейкосапфира, с шероховатостью контактирующих рабочих поверхностей Ra 2-5 Å. Гладкость поверхности достигается способом обработки, включающем высверливание предварительных заготовок деталей из кристалла при помощи алмазного инструмента, трехступенчатую механическую обработку поверхности алмазным инструментом в присутствии смазочно-охлаждающих жидкостей с последовательным убыванием величины зерна абразива, снятие внутреннего напряжения в заготовках методом отжига в муфельной печи, обработку поверхности полумягким или мягким полировальным кругом или притиром с алмазным зерном 5/3 мкм и/или 1/0 мкм на часовом масле, трибохимическое полирование поверхности полировальным составом на основе коллоидного SiO. Изобретение позволяет увеличить ресурс эксплуатации плунжерных пар в составе насосов-дозаторов, дольше сохранять точность дозировки дозируемых жидкостей за счёт снижения коэффициента трения трущихся поверхностей.</description><language>eng ; rus</language><subject>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE ; APPARATUS THEREFOR ; BLASTING ; CHEMISTRY ; CRYSTAL GROWTH ; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY ; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR ; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY ; DRESSING OR CONDITIONING OF ABRADING SURFACES ; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ; GRINDING ; HEATING ; HUMAN NECESSITIES ; HYGIENE ; LIGHTING ; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; MECHANICAL ENGINEERING ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; PERFORMING OPERATIONS ; POLISHING ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; PUMPS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; REFINING BY ZONE-MELTING OF MATERIAL ; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE ; SINGLE-CRYSTAL-GROWTH ; TRANSPORTING ; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL ; WEAPONS ; WORKING CEMENT, CLAY, OR STONE ; WORKING STONE OR STONE-LIKE MATERIALS</subject><creationdate>2017</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=20170630&DB=EPODOC&CC=EA&NR=027091B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170630&DB=EPODOC&CC=EA&NR=027091B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAVENKOV Vitaly, Alexeevich</creatorcontrib><title>METHOD FOR PROCESSING CYLINDRICAL SURFACES OF SAPPHIRE PARTS, A SAPPHIRE PISTON PAIR AND A METERING PUMP ON THE BASIS THEREOF</title><description>The invention relates to piston pairs and metering pumps on the basis thereof, to the manufacture of devices and parts thereof, and in particular to a method for processing cylindrical surfaces of parts consisting of a crystal on the basis of α-modification of aluminium oxide. The piston pair comprises an outer and an inner parts consisting of a crystal on the basis of the modification of aluminium oxide, preferably a monocrystal of leucosapphire with a roughness of the contact working surfaces Ra of 2-5 Angstroem. Smoothness of the surface is achieved by a processing method comprising drilling of preliminary semifinished products of parts consisting of a crystal with the aid of a diamond tool, three-stage mechanical processing of the surface with the diamond tool in the presence of cutting fluids and then decreasing the grain size of the abrasive, removing the internal stress in the semifinished products by means of an annealing method in a muffle furnace, processing the surface using a semi-soft or soft buffing wheel or a lapping tool with a diamond grain size of 5/3 and/or 1/0 μm using jeweller's rouge, and tribochemical polishing of the surface using a polishing material on the basis of colloidal SiO. The invention makes it possible to increase the service life of piston pairs used in metering pumps and to maintain for a longer period of time the accuracy of metering of metered liquids by virtue of reducing the coefficient of friction of rubbing surfaces.
Изобретение относится к плунжерным парам и насосам-дозаторам на их основе, к изготовлению устройств и их частей, в частности к способу обработки цилиндрических поверхностей деталей из кристалла на основе α-модификации оксида алюминия. Плунжерная пара содержит наружную и внутреннюю детали из кристалла на основе α-модификации оксида алюминия, предпочтительно монокристалла лейкосапфира, с шероховатостью контактирующих рабочих поверхностей Ra 2-5 Å. Гладкость поверхности достигается способом обработки, включающем высверливание предварительных заготовок деталей из кристалла при помощи алмазного инструмента, трехступенчатую механическую обработку поверхности алмазным инструментом в присутствии смазочно-охлаждающих жидкостей с последовательным убыванием величины зерна абразива, снятие внутреннего напряжения в заготовках методом отжига в муфельной печи, обработку поверхности полумягким или мягким полировальным кругом или притиром с алмазным зерном 5/3 мкм и/или 1/0 мкм на часовом масле, трибохимическое полирование поверхности полировальным составом на основе коллоидного SiO. Изобретение позволяет увеличить ресурс эксплуатации плунжерных пар в составе насосов-дозаторов, дольше сохранять точность дозировки дозируемых жидкостей за счёт снижения коэффициента трения трущихся поверхностей.</description><subject>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE</subject><subject>APPARATUS THEREFOR</subject><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>CRYSTAL GROWTH</subject><subject>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</subject><subject>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</subject><subject>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</subject><subject>DRESSING OR CONDITIONING OF ABRADING SURFACES</subject><subject>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</subject><subject>GRINDING</subject><subject>HEATING</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>LIGHTING</subject><subject>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</subject><subject>MECHANICAL ENGINEERING</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POLISHING</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</subject><subject>PUMPS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>REFINING BY ZONE-MELTING OF MATERIAL</subject><subject>SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</subject><subject>SINGLE-CRYSTAL-GROWTH</subject><subject>TRANSPORTING</subject><subject>UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</subject><subject>WEAPONS</subject><subject>WORKING CEMENT, CLAY, OR STONE</subject><subject>WORKING STONE OR STONE-LIKE MATERIALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFjLEKwkAQRNNYiPoN7gcoJFqI5eay5x2Y3LF7KaxCkLMSDcTWf_cCFnZWM8wb3jx71xSMq0A7Bs9OkYhtTqAuZ9tUbBWeQVrWmAA4DYLeG8sEHjnIBvBnsRJck4BlwKZKKKmJJ5tvaw-JBUNQoliZGpPTy2x26-9jXH1zka01BWW2cXh2cRz6a3zEV0eY7w75sSiL_f_HB6h_Of4</recordid><startdate>20170630</startdate><enddate>20170630</enddate><creator>SAVENKOV Vitaly, Alexeevich</creator><scope>EVB</scope></search><sort><creationdate>20170630</creationdate><title>METHOD FOR PROCESSING CYLINDRICAL SURFACES OF SAPPHIRE PARTS, A SAPPHIRE PISTON PAIR AND A METERING PUMP ON THE BASIS THEREOF</title><author>SAVENKOV Vitaly, Alexeevich</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EA027091B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rus</language><creationdate>2017</creationdate><topic>AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE</topic><topic>APPARATUS THEREFOR</topic><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>CRYSTAL GROWTH</topic><topic>DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY</topic><topic>DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR</topic><topic>DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY</topic><topic>DRESSING OR CONDITIONING OF ABRADING SURFACES</topic><topic>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</topic><topic>GRINDING</topic><topic>HEATING</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>LIGHTING</topic><topic>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</topic><topic>MECHANICAL ENGINEERING</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POLISHING</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</topic><topic>PUMPS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>REFINING BY ZONE-MELTING OF MATERIAL</topic><topic>SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE</topic><topic>SINGLE-CRYSTAL-GROWTH</topic><topic>TRANSPORTING</topic><topic>UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL</topic><topic>WEAPONS</topic><topic>WORKING CEMENT, CLAY, OR STONE</topic><topic>WORKING STONE OR STONE-LIKE MATERIALS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAVENKOV Vitaly, Alexeevich</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAVENKOV Vitaly, Alexeevich</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR PROCESSING CYLINDRICAL SURFACES OF SAPPHIRE PARTS, A SAPPHIRE PISTON PAIR AND A METERING PUMP ON THE BASIS THEREOF</title><date>2017-06-30</date><risdate>2017</risdate><abstract>The invention relates to piston pairs and metering pumps on the basis thereof, to the manufacture of devices and parts thereof, and in particular to a method for processing cylindrical surfaces of parts consisting of a crystal on the basis of α-modification of aluminium oxide. The piston pair comprises an outer and an inner parts consisting of a crystal on the basis of the modification of aluminium oxide, preferably a monocrystal of leucosapphire with a roughness of the contact working surfaces Ra of 2-5 Angstroem. Smoothness of the surface is achieved by a processing method comprising drilling of preliminary semifinished products of parts consisting of a crystal with the aid of a diamond tool, three-stage mechanical processing of the surface with the diamond tool in the presence of cutting fluids and then decreasing the grain size of the abrasive, removing the internal stress in the semifinished products by means of an annealing method in a muffle furnace, processing the surface using a semi-soft or soft buffing wheel or a lapping tool with a diamond grain size of 5/3 and/or 1/0 μm using jeweller's rouge, and tribochemical polishing of the surface using a polishing material on the basis of colloidal SiO. The invention makes it possible to increase the service life of piston pairs used in metering pumps and to maintain for a longer period of time the accuracy of metering of metered liquids by virtue of reducing the coefficient of friction of rubbing surfaces.
Изобретение относится к плунжерным парам и насосам-дозаторам на их основе, к изготовлению устройств и их частей, в частности к способу обработки цилиндрических поверхностей деталей из кристалла на основе α-модификации оксида алюминия. Плунжерная пара содержит наружную и внутреннюю детали из кристалла на основе α-модификации оксида алюминия, предпочтительно монокристалла лейкосапфира, с шероховатостью контактирующих рабочих поверхностей Ra 2-5 Å. Гладкость поверхности достигается способом обработки, включающем высверливание предварительных заготовок деталей из кристалла при помощи алмазного инструмента, трехступенчатую механическую обработку поверхности алмазным инструментом в присутствии смазочно-охлаждающих жидкостей с последовательным убыванием величины зерна абразива, снятие внутреннего напряжения в заготовках методом отжига в муфельной печи, обработку поверхности полумягким или мягким полировальным кругом или притиром с алмазным зерном 5/3 мкм и/или 1/0 мкм на часовом масле, трибохимическое полирование поверхности полировальным составом на основе коллоидного SiO. Изобретение позволяет увеличить ресурс эксплуатации плунжерных пар в составе насосов-дозаторов, дольше сохранять точность дозировки дозируемых жидкостей за счёт снижения коэффициента трения трущихся поверхностей.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR BLASTING CHEMISTRY CRYSTAL GROWTH DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING HEATING HUMAN NECESSITIES HYGIENE LIGHTING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE METALLURGY PERFORMING OPERATIONS POLISHING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH TRANSPORTING UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL WEAPONS WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS |
| title | METHOD FOR PROCESSING CYLINDRICAL SURFACES OF SAPPHIRE PARTS, A SAPPHIRE PISTON PAIR AND A METERING PUMP ON THE BASIS THEREOF |
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