Muhimmin rawar da foda mai launin kore na silicon carbide ke takawa a cikin kayan da ba su da ƙarfi
Foda mai launin kore na silicon carbide, sunan yana da wuya. Ainihin nau'i nesilicon carbide (SiC), wanda ake narkar da shi a zafin da ya wuce digiri 2000 a cikin tanda mai jure wa sinadarai masu ƙarfi kamar su quartz yashi da petroleum coke. Ya bambanta da na yau da kullun.baƙin silicon carbide, yana da cikakken iko kan tsarin a matakin ƙarshe na narkewar abu, tare da ƙarancin ƙazanta da kuma tsarkin lu'ulu'u mai yawa, don haka yana gabatar da launin kore ko duhu na musamman. Wannan "tsarki" yana ba shi kusan tauri mai tsanani (taurin Mohs yana da girman 9.2-9.3, na biyu kawai da lu'u-lu'u da boron carbide) da kuma kyakkyawan yanayin zafi da ƙarfin zafin jiki mai yawa. A fagen kayan da ba su da ƙarfi, "ƙashi mai tauri" ne wanda zai iya jurewa, yaƙi, zafi da ginawa.
To, ta yaya wannan foda mai kore zai iya nuna ƙarfinsa a cikin duniyar mawuyacin hali na kayan da ba su da ƙarfi kuma ya zama "mutum mai mahimmanci" wanda ba makawa?
Inganta ƙarfi da kuma jefa "ƙasusuwan ƙarfe" masu zafi mai zafi: Kayan da ke hana ruwa gudu suna jin tsoron "rashin iya jure" yanayin zafi mai zafi, su zama masu laushi da rugujewa.Micropodar silicon carbide mai launin koreyana da matuƙar tauri da ƙarfin zafin jiki mai kyau. Ƙara shi zuwa nau'ikan ƙarfe masu jurewa, kayan ramming ko tubali kamar ƙara ragar ƙarfe mai ƙarfi ga siminti. Yana iya samar da kwarangwal mai ƙarfi a cikin matrix, yana tsayayya da nakasa da laushin kayan a ƙarƙashin nauyin zafin jiki mai yawa. Kayan ƙarfe na tashar ƙarfe ta tanderun fashewa na babban masana'antar ƙarfe sun yi amfani da kayan yau da kullun a da, waɗanda suka lalace da sauri, ba za a iya ƙara yawan kwararar ƙarfe ba, kuma akai-akai ana jinkirta samarwa. Daga baya, an sami ci gaba na fasaha, kuma rabonfoda mai siffar silicon carbide kore An ƙara yawan kayan aikin sosai. "Kai, abin mamaki ne!" Daga baya darektan bitar ya tuna, "Lokacin da aka saka sabon kayan, ƙarfen da aka narke ya ratsa ta, gefen tashar ya bayyana a fili 'ya lalace', ƙimar kwararar ƙarfe ta koma baya, kuma adadin lokacin gyara ya ragu da fiye da rabi, kuma tanadin duk kuɗi ne na gaske!" Wannan tauri shine tushen tsawon rai na kayan aiki masu zafi.
Inganta kwararar zafi da kuma sanya "wurin nutsewa" a kan kayan: Da zarar kayan da ke hana zafi ya yi yawa, to, zai fi kyau! Ga wurare kamar ƙofofin tanda na coke da bangon gefen ƙwayoyin lantarki na aluminum, kayan da kansa yana buƙatar yin zafi na ciki cikin sauri don hana zafin gida ya yi yawa da lalacewa. Rarraba zafi na micropowder na silicon carbide kore tabbas "ɗalibi ne mai kyau" a cikin kayan da ba na ƙarfe ba (ƙimar kwararar zafi na ɗakin na iya kaiwa fiye da 125 W/m·K, wanda ya fi na tubalin yumbu sau da yawa). Ƙara shi zuwa kayan da ke hana zafi a wani takamaiman ɓangare kamar saka ingantaccen "bututun zafi" a cikin kayan, wanda zai iya inganta kwararar zafi gaba ɗaya, taimakawa zafi ya ɓace da sauri kuma daidai, da kuma guje wa zafi da barewa na gida ko lalacewa da "ƙonawa" ke haifarwa.
Ƙara juriya ga girgizar zafi da kuma haɓaka ikon "kwantar da hankali yayin da ake fuskantar canji": Ɗaya daga cikin "masu kashe" kayan da ke hana ruwa gudu shine sanyaya da dumama cikin sauri. Ana kunna tanderun kuma ana kashe shi, kuma zafin yana canzawa sosai, kuma kayan yau da kullun suna da sauƙin "fashewa" da kuma cirewa.Koren silicon carbideMicropowder yana da ƙaramin ma'aunin faɗaɗa zafi da kuma saurin jurewar zafi, wanda zai iya daidaita damuwa da bambancin zafin jiki ke haifarwa cikin sauri. Shigar da shi cikin tsarin juriya zai iya inganta ikon kayan don tsayayya da canje-canjen zafin jiki kwatsam, wato, "juriyar girgizar zafi". Iron ɗin bakin murhu da aka yi amfani da shi a cikin murhun siminti yana fuskantar mummunan girgizar sanyi da zafi, kuma ɗan gajeren rayuwarsa matsala ce ta daɗe. Wani ƙwararren injiniyan ginin murhu ya gaya mini: "Tun lokacin da aka yi amfani da casttables masu ƙarfi tare da micropowder na silicon mai launin kore a matsayin babban taro da foda, tasirin ya kasance nan take. Lokacin da iska mai sanyi ta busa lokacin da aka dakatar da murhun don gyarawa, sauran sassan suna fashewa, amma wannan kayan bakin murhun yana da ƙarfi kuma yana da ƙarfi, kuma akwai ƙarancin fasawar saman. Bayan zagaye, asarar tana raguwa a bayyane, tana ceton ƙoƙarin gyara da yawa!" Wannan "kwantar da hankali" shine don magance hauhawar farashi da raguwa a samarwa.
Domin kuwafoda mai siffar silicon carbide kore ya haɗa ƙarfi mai ƙarfi, ƙarfin jure zafi mai yawa, juriya mai kyau ga girgizar zafi, da juriya mai ƙarfi ga zaizayar ƙasa, ya zama "abokin tarayya" a cikin ƙirƙirar kayan zamani masu ƙarfi. Daga tanderun fashewa, masu juyawa, ramukan ƙarfe, da tankunan torpedo a cikin ƙarfe da ƙarfe na ƙarfe zuwa ƙwayoyin lantarki a cikin ƙarfe marasa ƙarfe; daga manyan sassan kilns na siminti da kilns na gilashi a masana'antar kayan gini zuwa kilns masu ƙarfi a cikin fannoni na masana'antar sinadarai, wutar lantarki, da ƙone sharar gida, har ma da zuba kofuna da tubalin ƙarfe masu gudana don yin siminti… Duk inda akwai zafi mai yawa, lalacewa, canji kwatsam, da zaizayar ƙasa, wannan ƙaramin foda mai kore yana aiki. An saka shi a hankali a cikin kowane tubalin mai ƙarfi da kowane murabba'in siminti, yana ba da kariya mai ƙarfi ga "zuciyar" masana'antar - kilns masu zafi mai yawa.
Ba shakka, "noma" na ƙwayar silicon carbide mai kore ba abu ne mai sauƙi ba. Daga zaɓin kayan aiki, daidaitaccen tsarin narkewar wutar lantarki mai juriya (don tabbatar da tsarki da kore), zuwa niƙa, niƙa, cire datti, rarrabuwar daidaici tsakanin iskar gas ko iska, zuwa marufi mai tsauri bisa ga rarrabawar girman barbashi (daga ƙananan microns zuwa ɗaruruwan microns), kowane mataki yana da alaƙa da ingantaccen aikin samfurin ƙarshe. Musamman ma, tsarki, rarraba girman barbashi da siffar barbashi na ƙwayar micropowder kai tsaye yana shafar wargajewar sa da tasirinsa a cikin kayan da ba su da ƙarfi. Ana iya cewa ƙwayar silicon carbide mai inganci mai inganci ita ce samfurin haɗin fasaha da fasaha.