Yadda ake yin crucibles

A matsayin kayan aiki mai mahimmanci a fasahar simintin gyare-gyare na zamani,silicon carbide cruciblesannu a hankali ya zama kwandon da aka fi so don ba da ƙarfe ba na ƙarfe ba saboda kyakkyawan aikinsa da kaddarorin kayan abu na musamman. Musamman lokacin sarrafa ƙarfe mai zafin jiki narke, silicon carbide crucibles yana nuna jerin fa'idodin fasaha masu mahimmanci. Wannan labarin zai gabatar da dalla-dalla dalla-dalla halaye na silicon carbide crucibles, aikace-aikacen sa a cikin tsarin simintin gyare-gyare, da kuma yadda za a samar da ingantacciyar mafita ga kamfanonin simintin gyaran kafa na zamani.

1. Menene silicon carbide crucible?
Silicon carbide crucible babban akwati ne mai zafin jiki ta amfani da silicon carbide (SiC) a matsayin babban ɗanyen abu. An fi amfani da shi don narkewa da sarrafa karafa daban-daban da gami. Silicon carbide abu ne na roba wanda ke da tsananin ƙarfi da juriya mai zafi. Ana amfani da shi sosai a manyan fasahohin fasaha kamar su yumbu, ƙarfe, da semiconductor.

Saboda siliki carbide crucibles suna da kyawawan kaddarorin jiki da sinadarai kamar haɓakar haɓakar thermal, ƙarancin haɓaka haɓakar thermal, da juriya na lalata, suna nuna kwanciyar hankali da karko a ƙarƙashin yanayin zafi da matsanancin yanayi.

2. Fa'idodin fasaha na silicon carbide crucible
1. Madalla high zafin jiki juriya
Silicon carbide crucibles suna da matsanancin juriya na zafi kuma suna iya jure yanayin zafi sama da 1600 ° C. Wannan ya sa su dace don narke karafa masu zafi kamar jan karfe, aluminum da nickel. Idan aka kwatanta da kullun da aka yi da wasu kayan, ƙarfin silicon carbide crucibles ba ya raguwa sosai a ƙarƙashin yanayin zafi mai zafi, yana tabbatar da kwanciyar hankali a lokacin aikin narkewa.

Wannan kyakkyawan juriya mai zafi yana taimaka wa kamfanoni su guje wa ɓarna daga lalacewa ko fashe saboda yanayin zafi, don haka inganta ci gaban samarwa da inganci.

2. Kyakkyawan thermal conductivity
Wani sanannen alama na silicon carbide abu ne mai girma thermal watsin, wanda damar da sauri da kuma ko da zafi canja wuri. Wannan yana nufin cewa yayin aikin narkewar, narkakkar ƙarfe na iya saurin isa ga zafin da ake buƙata, rage lokacin narkewa da haɓaka haɓakar samarwa.

Wannan ingantaccen tafiyar da zafi yana kuma rage zafi da narkakken karfen, yana taimakawa wajen samun madaidaicin sarrafa zafin jiki yayin aikin simintin da kuma tabbatar da daidaiton ingancin simintin.

3. Low thermal fadada coefficient
Ƙimar haɓakar haɓakar thermal yana nufin iyakar abin da abu ke faɗaɗa cikin ƙara lokacin da aka yi zafi. Silicon carbide yana da ƙarancin haɓakar haɓakar haɓakar thermal, wanda ke nufin yana canzawa kaɗan kaɗan yayin zafi. Sabili da haka, ko da a cikin yanayin da ke da matsanancin yanayin zafi, siliki carbide crucible zai iya kula da ainihin siffarsa kuma ya guje wa fasa ko lalacewa saboda fadadawa ko raguwa.

Ƙarƙashin haɓakar zafin jiki ya dace musamman don matakan simintin gyare-gyaren da suka shafi dumama da sake zagayowar sanyaya, mahimmanci yana faɗaɗa rayuwar sabis na crucible.

4. Kyakkyawan juriya na lalata
A lokacin aikin narkewar, narkakkar karfen yana amsawa tare da ƙugiya, a hankali yana lalata samansa. Duk da haka, siliki carbide abu yana da kyakkyawan juriya na lalata sinadarai kuma yana iya yin tsayayya da yashwar ƙarfe mai ƙarfi, musamman lokacin da ake mu'amala da karafa masu amsawa sosai kamar jan karfe da aluminum.

Kyakkyawan juriya na lalata ba kawai yana ƙara rayuwar sabis na crucible ba, amma kuma yana rage ƙazantaccen gurɓataccen gurɓataccen abu wanda ya haifar da lalacewa a kan crucible surface, tabbatar da tsabtar ruwa na karfe da kuma inganta ingancin samfurin karshe.

5. Babban ƙarfin injiniya
Silicon carbide crucibles suna kula da ƙarfin injina ko da a yanayin zafi mai yawa, yana sa su ƙasa da yuwuwar karyewa ko lalacewa. Wannan babban ƙarfin hali yana ba da damar ƙwanƙwasa don tsayayya da tasiri na narkewar ƙarfe da damuwa na inji na waje, kiyaye kwanciyar hankali na tsarin a lokacin zafi mai zafi.

6. Good thermal shock kwanciyar hankali
Kwanciyar girgizar zafi tana nufin ƙarfin abu don tsayayya da fashe lokacin da zafin jiki ya canza da sauri. Silicon carbide crucibles suna nuna kyakkyawan kwanciyar hankali na zafin zafi kuma suna iya jure saurin canjin zafin jiki ba tare da fashewa ba. Wannan yana da mahimmanci musamman don matakan simintin gyaran kafa waɗanda ke buƙatar dumama da sanyaya akai-akai.

uku. Aikace-aikace na silicon carbide crucible
Saboda tsananin juriya da zafinsa, zafin zafi, da juriya na lalata, ana amfani da siliki carbide crucibles a fannoni daban-daban na narke da simintin gyare-gyaren ƙarfe, musamman a cikin narkewar karafa marasa ƙarfe da gami. Wadannan su ne yanayin aikace-aikacen gama gari da yawa:

Simintin Tagulla: Lokacin da ake narka tagulla.silicon carbide crucibles iya ci gaba da narke zafin jiki uniform, rage samuwar najasa, da kuma inganta ingancin jan karfe sassa.
Aluminum da aluminum alloy smelting: Aluminum cikin sauƙi yana amsawa tare da crucible yayin aikin narkewa, amma juriya na silicon carbide yadda ya kamata yana kare crucible daga lalata aluminum kuma yana tsawaita rayuwarsa.
Sauran zafi mai zafi: Silicon carbide crucible shima ya dace da narka karafa masu zafi kamar zinc da nickel, kuma yana da karfin daidaitawa.

Hudu. Amfani da kula da silicon carbide crucible
Don tsawaita rayuwar sabis na siliki carbide crucibles, amfani daidai da kulawa suna da mahimmanci. Ga wasu shawarwari:

Preheat crucible: Kafin fara amfani da shi ko sake amfani da shi, ana ba da shawarar a hankali a yi zafi da crucible zuwa zafin aiki don hana dumama da fashewa kwatsam.
Guji saurin dumama da sanyaya: Ko da yake siliki-carbide crucibles suna da kyakkyawan kwanciyar hankali na zafin zafi, saurin canjin zafin jiki na iya lalata crucible.
Dubawa na yau da kullun: Yayin amfani, bincika kullun da ke da ƙarfi don alamun fashe ko lalata, da warware matsalolin da za a iya fuskanta a kan lokaci.