Silikoni carbide Sagger ndi Crucible
Chogulitsachi ndi chabwino kwambiri pa uvuni wa mafakitale, kusungunula, kusungunula ndipo chimagwiritsidwa ntchito pazinthu zosiyanasiyana. Mu mafakitale a mankhwala, mafuta ndi kuteteza chilengedwe ndi ntchito zosiyanasiyana.
1) Kukhazikika kwa kutentha
2) mankhwala osagwira dzimbiri
3) Kupirira kutentha kwambiri (mpaka 1650°)
4) Kusavala/kuwononga/kukana okosijeni
5) Mphamvu ya makina imagwira ntchito bwino kwambiri
6) Kuyeretsa kapena kupukuta malo ovuta kwambiri pansi pa nthaka
7) Amagwiritsidwa ntchito popera, kulumikiza, ndi kudula waya komanso kuphulika koopsa
| Kapangidwe ka Mankhwala SIC >= | % | 90 | |
| Kutentha Kwambiri kwa Utumiki. | ºC | 1400 | |
| Kusakhazikika kwa mpweya >= | SK | 39 | |
| 2kg/cm2 Kusagwira ntchito bwino kwa T2 >= | ºC | 1790 | |
| Katundu wa fizikisi | Modulus ya Rupturt pa kutentha kwa chipinda >= | Kg/cm2 | 500 |
| Modulus of Ropture pa 1400ºC >= | Kg/cm2 | 550 | |
| Mphamvu yokakamiza >= | Kg/cm2 | 1300 | |
| Kuwonjezeka kwa Kutentha pa 1000ºC | % | 0.42-0.48 | |
| Kuoneka ngati Porosity | % | ≤20 | |
| Kuchuluka kwa Zinthu Zambiri | g/cm3 | 2.55-2.7 | |
| Kutentha kwa kutentha pa 1000ºC | Kcal/m.hr.ºC | 13.5-14.5 | |
Kufotokozera:
Chophimba ndi mphika wa ceramic womwe umagwiritsidwa ntchito kusunga chitsulo kuti chisungunuke mu uvuni. Ichi ndi chophimba chapamwamba kwambiri, chapamwamba chomwe chimagwiritsidwa ntchito ndi makampani opanga zitsulo.
Zimene Zimachita:
Chophikira chimafunika kuti chipirire kutentha kwambiri komwe kumakumana nako mu zitsulo zosungunuka. Chophikiracho chiyenera kukhala ndi malo osungunuka kwambiri kuposa chitsulo chomwe chikusungunuka ndipo chiyenera kukhala ndi mphamvu zabwino ngakhale chitakhala choyera.
N'zotheka kugwiritsa ntchito chophikira chachitsulo chopangidwa kunyumba kuti musungunule zitsulo monga zinc ndi aluminiyamu, chifukwa zitsulozi zimasungunuka kutentha kotsika kwambiri kuposa kwa chitsulo. Komabe, kukulitsa (kuphulika) kwa pamwamba pa chophikira chachitsulo ndi vuto. Chophikirachi chingadetse kusungunuka ndikuchepetsa makoma a chophikira mwachangu. Chophikira chachitsulo chimagwira ntchito ngati mukuyamba kumene ndipo simukusamala ndi chophikiracho.
Zipangizo zodziwika bwino zotetezera zomwe zimagwiritsidwa ntchito popanga zinthu zoyambira ndi dongo-graphite, ndi silicon-carbide yolumikizidwa ndi kaboni. Zipangizozi zimatha kupirira kutentha kwambiri pantchito yopangira zinthu zoyambira. Silicon carbide ili ndi ubwino wowonjezera chifukwa ndi chinthu cholimba kwambiri.
Zombo zathu za Clay Graphite Bilge Shape zili ndi kutentha kwa 2750 °F (1510 °C). Zimagwira zinc, aluminiyamu, mkuwa / bronze, siliva ndi golide. Wopanga amanena kuti zingagwiritsidwe ntchito pa chitsulo chosungunuka. Zopangidwa ku United States!
Maonekedwe Ophimbidwa:
Chophimba chooneka ngati bilge (“B” Shape) chimaoneka ngati mbiya ya vinyo. Kukula kwa “bilge” ndi kukula kwa chophimbacho pamalo ake otakata kwambiri. Ngati palibe kukula kwa bilge komwe kwawonetsedwa, ndiye kuti m'mimba mwake pamwamba ndiye m'lifupi mwake.
Lamulo la chala chachikulu limati nambala ya choyimbira cha “bilge” imapereka mphamvu yogwirira ntchito yoyerekeza mu mapaundi a aluminiyamu. Pa choyimbira cha mkuwa kapena bronze gwiritsani ntchito katatu kuposa nambala ya choyimbira cha mkuwa. Mwachitsanzo, choyimbira cha #10 chingakhale ndi mapaundi pafupifupi 10 a aluminiyamu ndi mapaundi 30 a mkuwa.
Mipira yathu ya “B” imagwiritsidwa ntchito ndi anthu okonda zosangalatsa komanso okonda kuponya mipira pafupipafupi. Iyi ndi mipira yamtengo wapatali komanso yokhazikika pamalonda.
Chongani matebulo omwe ali pansipa kuti mupeze kukula koyenera kwa ntchito yanu.
Momwe Mungagwiritsire Ntchito:
Zipangizo zonse zonyamulira ziyenera kugwiritsidwa ntchito ndi zomangira zoyenera (chida chonyamulira). Zipangizo zonyamulira zosayenerera zingayambitse kuwonongeka kapena kulephera kwathunthu kwa chomangira panthawi yovuta kwambiri.
Disiki ya khadibodi ikhoza kuyikidwa pakati pa chophikira ndi maziko a ng'anjo musanatenthe. Izi zidzayaka, kusiya mpweya pakati pake ndikuletsa chophikiracho kuti chisamamatire pansi pa ng'anjo. Chophimba cha Plumbago (Carbon Black) chimachita chimodzimodzi.
Ndi bwino kugwiritsa ntchito chophikira chosiyana pa mtundu uliwonse wa chitsulo kuti mupewe kuipitsidwa. Onetsetsaninso kuti mwatulutsa madzi onse mu chophikiracho mutachigwiritsa ntchito. Chitsulo chomwe chimasiyidwa kuti chikhale cholimba mu chophikiracho chingakulire pakutenthetsanso ndikuchiwononga.
Chonde tenthetsani miphika yatsopano kapena yomwe yasungidwa. Tenthetsani miphika yopanda kanthu kwa maola awiri pa 220 F (104 C). (Gwiritsani ntchito mpweya wokwanira. Miphika yatsopano idzasuta pamene glaze ikutha.) Kenako yatsani miphika yopanda kanthuyo pamoto wofiira. Lolani miphika kuti izizire kutentha kwa chipinda mu uvuni musanagwiritse ntchito. Njirayi iyenera kutsatiridwa pa miphika yonse yatsopano komanso pa miphika iliyonse yomwe ingakhale itakumana ndi chinyezi m'malo osungira.
Sungani miphika yonse pamalo ouma. Chinyezi chingapangitse miphika kusweka ikatenthedwa. Ngati yasungidwa kwa kanthawi, ndi bwino kubwerezanso kutenthetsa.
Ma silicon carbide crucibles ndi omwe sangatenge madzi ambiri m'malo osungira ndipo nthawi zambiri safunika kutenthedwa musanagwiritse ntchito. Ndibwino kuyatsa crucible yatsopano ku kutentha kofiira musanagwiritse ntchito koyamba kuti muyatse ndikulimbitsa zokutira ndi zomangira za fakitale.
Zinthuzo ziyenera kuyikidwa mu mbiya yophwanyika momasuka KWAMBIRI. MUSAPAKE "chidendene" cha mbiya, chifukwa zinthuzo zidzakula zikatenthedwa ndipo zitha kuswa ceramic. Zinthuzi zikasungunuka kukhala "chidendene", sungani zinthu zambiri mosamala mu dziwe kuti zisungunuke. (CHENJEZO: Ngati pali chinyezi chilichonse pa chinthu chatsopanocho, nthunzi idzaphulika). Apanso, musapake chitsulocho mwamphamvu. Pitirizani kuyika zinthuzo mu sungunuka mpaka kuchuluka kofunikira kusungunuke.
CHENJEZO!!!: Miyala yamoto ndi yoopsa. Kusungunula chitsulo mu dalaivala ndi koopsa. Kuthira chitsulo mu nkhungu ndi koopsa. Miyala yamoto ingagwe popanda chenjezo. Miyala yamoto ikhoza kukhala ndi zolakwika zobisika mu zipangizo ndi kupanga zomwe zingayambitse kulephera, kuwonongeka kwa katundu, kuvulala kwa munthu, kuvulala kwa anthu omwe akuyang'ana ndi kutayika kwa miyoyo.
Chophimba Choyambira
Kufotokozera:
BCS Chipilala choyambira ndi chopondera cha kutentha kwambiri chomwe chimagwiritsidwa ntchito kukweza chophikiracho kupita kumalo otentha a ng'anjo.
Zimene Zimachita:
Chipika choyambira nthawi zambiri chimagwiritsidwa ntchito mu ng'anjo yoyaka ndi gasi kuti chinyamule choyaka mmwamba kuti lawi la choyatsira moto lisaphulike mwachindunji pakhoma lopyapyala la choyatsira moto. Ngati lawi la choyatsira moto liloledwa kugunda choyatsira moto mwachindunji, lingayambitse kugwa kwa khoma la choyatsira moto motero limachepetsa moyo wake. Njira yoyenera yopewera izi ndikugwiritsa ntchito choyatsira moto kuti chinyamule choyatsira motocho kuchokera pamalo oyaka moto.
Kukweza chotenthetseracho kumathandizanso kuti chikhale mu "malo otentha" a ng'anjo. Ngakhale kuti lawi la chotenthetseracho limalowa m'thupi la ng'anjo pansi, malo otentha kwambiri ndi kuyambira pakati mpaka pamwamba. Ndi m'derali momwe makoma a ng'anjo amatenthedwa ndi mpweya wozungulira bwino kwambiri. Kukhala ndi mbali za chotenthetseracho m'derali kumalimbikitsa kutentha kwabwino kwambiri kuchokera ku mpweya wosasunthika komanso kutentha kwa makoma amkati mwa ng'anjo yowala.
Momwe Mungagwiritsire Ntchito:
Chipika chapansi chiyenera kukhala chachitali mokwanira kuti lawi la choyatsira moto ligwirizane ndi pamwamba pa chipikacho. Palibe vuto ngati pamwamba pa chipikacho pali pamwamba kuposa cholowera cha choyatsira moto. Chomwe simukufuna ndichakuti lawi ligunde mbali zoonda za chipikacho. Ndikoyeneranso ngati lawi ligunda gawo lokhuthala pansi pa chipikacho chifukwa gawoli silingawonongeke ndi mpweya.
Mipira ndi Zokwawa:
Shandong Zhongpeng Special Ceramics Co., Ltd ndi imodzi mwa njira zazikulu kwambiri zothetsera zinthu zatsopano za silicon carbide ceramic ku China. SiC technical ceramic: Kuuma kwa Moh ndi 9 (Kuuma kwa New Moh ndi 13), komwe kumalimbana bwino ndi kukokoloka ndi dzimbiri, kukana bwino kwambiri - kukana komanso kukana okosijeni. Moyo wa ntchito wa SiC ndi wautali nthawi 4 mpaka 5 kuposa 92% alumina. MOR ya RBSiC ndi nthawi 5 mpaka 7 kuposa ya SNBSC, ingagwiritsidwe ntchito pazinthu zovuta kwambiri. Njira yowerengera mawu ndi yachangu, kutumiza kumakhala monga momwe kunalonjezera ndipo khalidwe lake ndi lapamwamba kwambiri. Nthawi zonse timapitilizabe kutsutsa zolinga zathu ndikubwezera mitima yathu kwa anthu.
