Method for cleaning surface of graphite boat
The invention discloses a method for cleaning the surface of a graphite boat, which is characterized by comprising the following steps: putting the graphite boat into a cleaning solution for cleaning, the cleaning solution is prepared by mixing hydrofluoric acid, nitric acid and water according to t...
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| creator | LU GUOYUN ZHANG BO YAO XIANBIN |
| description | The invention discloses a method for cleaning the surface of a graphite boat, which is characterized by comprising the following steps: putting the graphite boat into a cleaning solution for cleaning, the cleaning solution is prepared by mixing hydrofluoric acid, nitric acid and water according to the volume ratio of HF: HNO3: H2O = (0.9-1.1): (0.9-1.1): (2.7-3.3), the mass fraction of hydrofluoric acid stock solution is 9.9%-12.1%, and the mass fraction of nitric acid stock solution is 12.2%-15.0%; washing the surface of the graphite boat with pure water; the graphite boat is put into a pure water soaking tank to be cleaned, and meanwhile continuous bubbling operation is carried out; the graphite boat is put into a pure water soaking tank to be cleaned and overflow, and meanwhile continuous bubbling operation is conducted; the surface of the graphite boat is blow-dried, and surface moisture is removed; and the graphite boat is moved into a clean oven to be dried. By optimizing the formula of the cleaning sol |
| format | Patent |
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By optimizing the formula of the cleaning sol</description><language>chi ; eng</language><subject>BLASTING ; CLEANING ; CLEANING IN GENERAL ; DRYING ; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; PREVENTION OF FOULING IN GENERAL ; TRANSPORTING ; WEAPONS</subject><creationdate>2024</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=20240621&DB=EPODOC&CC=CN&NR=118218310A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240621&DB=EPODOC&CC=CN&NR=118218310A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LU GUOYUN</creatorcontrib><creatorcontrib>ZHANG BO</creatorcontrib><creatorcontrib>YAO XIANBIN</creatorcontrib><title>Method for cleaning surface of graphite boat</title><description>The invention discloses a method for cleaning the surface of a graphite boat, which is characterized by comprising the following steps: putting the graphite boat into a cleaning solution for cleaning, the cleaning solution is prepared by mixing hydrofluoric acid, nitric acid and water according to the volume ratio of HF: HNO3: H2O = (0.9-1.1): (0.9-1.1): (2.7-3.3), the mass fraction of hydrofluoric acid stock solution is 9.9%-12.1%, and the mass fraction of nitric acid stock solution is 12.2%-15.0%; washing the surface of the graphite boat with pure water; the graphite boat is put into a pure water soaking tank to be cleaned, and meanwhile continuous bubbling operation is carried out; the graphite boat is put into a pure water soaking tank to be cleaned and overflow, and meanwhile continuous bubbling operation is conducted; the surface of the graphite boat is blow-dried, and surface moisture is removed; and the graphite boat is moved into a clean oven to be dried. By optimizing the formula of the cleaning sol</description><subject>BLASTING</subject><subject>CLEANING</subject><subject>CLEANING IN GENERAL</subject><subject>DRYING</subject><subject>DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>PREVENTION OF FOULING IN GENERAL</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDxTS3JyE9RSMsvUkjOSU3My8xLVyguLUpLTE5VyE9TSC9KLMjILElVSMpPLOFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBUA9eakl8c5-hoYWRoYWxoYGjsbEqAEAbrUpZg</recordid><startdate>20240621</startdate><enddate>20240621</enddate><creator>LU GUOYUN</creator><creator>ZHANG BO</creator><creator>YAO XIANBIN</creator><scope>EVB</scope></search><sort><creationdate>20240621</creationdate><title>Method for cleaning surface of graphite boat</title><author>LU GUOYUN ; ZHANG BO ; YAO XIANBIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN118218310A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>BLASTING</topic><topic>CLEANING</topic><topic>CLEANING IN GENERAL</topic><topic>DRYING</topic><topic>DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>PREVENTION OF FOULING IN GENERAL</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>LU GUOYUN</creatorcontrib><creatorcontrib>ZHANG BO</creatorcontrib><creatorcontrib>YAO XIANBIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LU GUOYUN</au><au>ZHANG BO</au><au>YAO XIANBIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for cleaning surface of graphite boat</title><date>2024-06-21</date><risdate>2024</risdate><abstract>The invention discloses a method for cleaning the surface of a graphite boat, which is characterized by comprising the following steps: putting the graphite boat into a cleaning solution for cleaning, the cleaning solution is prepared by mixing hydrofluoric acid, nitric acid and water according to the volume ratio of HF: HNO3: H2O = (0.9-1.1): (0.9-1.1): (2.7-3.3), the mass fraction of hydrofluoric acid stock solution is 9.9%-12.1%, and the mass fraction of nitric acid stock solution is 12.2%-15.0%; washing the surface of the graphite boat with pure water; the graphite boat is put into a pure water soaking tank to be cleaned, and meanwhile continuous bubbling operation is carried out; the graphite boat is put into a pure water soaking tank to be cleaned and overflow, and meanwhile continuous bubbling operation is conducted; the surface of the graphite boat is blow-dried, and surface moisture is removed; and the graphite boat is moved into a clean oven to be dried. By optimizing the formula of the cleaning sol</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | BLASTING CLEANING CLEANING IN GENERAL DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL TRANSPORTING WEAPONS |
| title | Method for cleaning surface of graphite boat |
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