Reaction yomangidwa ndi silicon carbide Crucible
Mankhwalawa ndi abwino kwa ng'anjo yamafakitale, sintering, smelting ndikugwiritsa ntchito mitundu yonse yazinthu. M'munda wamakampani opanga mankhwala, petroleum ndi kuteteza chilengedwe ndi ntchito zosiyanasiyana.
1) Kukhazikika kwamphamvu kwa kutentha
2) Chemical dzimbiri zosagwira
3) Kupsa mtima kwambiri (mpaka 1650 °
4) kuvala / dzimbiri / oxidation kugonjetsedwa
5) Kuchita kwakukulu kwa mphamvu zamakina
6) Kuyeretsa kapena kuyika malo ovuta kwambiri
7) Amagwiritsidwa ntchito popera, kupukutira, ndi kudula mawaya komanso kuphulika kwa abrasive
| Chemical Composition SIC >= | % | 90 | |
| Max.Service Temp. | ºC | 1400 | |
| Refractoriness > = | SK | 39 | |
| 2kg/cm2 Refractoriness pansi pa katundu T2>= | ºC | 1790 | |
| Physics katundu | Modulus ya Rupturt pa chipinda cha tempo>= | Kg/cm2 | 500 |
| Modulus of Rupture pa 1400ºC >= | Kg/cm2 | 550 | |
| Mphamvu zopondereza>= | Kg/cm2 | 1300 | |
| Kuwonjeza Kutentha kwa 1000ºC | % | 0.42-0.48 | |
| Kuwoneka kwa Porosity | % | ≤20 | |
| Kuchulukana Kwambiri | g/cm3 | 2.55-2.7 | |
| Thermal Conductivity pa 1000ºC | Kcal/m.hr.ºC | 13.5-14.5 | |
Kufotokozera:
A cruciblendi mphika wa ceramic womwe umagwiritsidwa ntchito kusunga zitsulo posungunuka mu ng'anjo. Ichi ndi chida chapamwamba kwambiri, chogwiritsidwa ntchito ndi makampani opanga malonda.
Zomwe Imachita:
Chophimbacho chimafunika kuti chipirire kutentha kwakukulu komwe kumapezeka muzitsulo zosungunuka. Zopangira crucible ziyenera kukhala ndi malo osungunuka kwambiri kuposa zitsulo zomwe zimasungunuka ndipo ziyenera kukhala ndi mphamvu zabwino ngakhale zoyera zotentha.
N'zotheka kugwiritsa ntchito chitsulo chopangidwa ndi nyumba kuti chisungunuke zitsulo monga zinki ndi aluminiyamu, chifukwa zitsulozi zimasungunuka ndi kutentha pansi pa chitsulo. Komabe kukulitsa (kuwotcha) kwa chitsulo chamkati chamkati kumakhala vuto. Sikelo iyi imatha kuwononga chisungunuko ndikuchepetsa makoma opindika mwachangu. Zitsulo zachitsulo zimagwira ntchito ngati mutangoyamba kumene ndipo osayiwala kuthana ndi makulitsidwe.
Zomwe zimagwiritsidwa ntchito popanga crucible ndi clay-graphite, ndi carbon bonded silicon-carbide. Zida izi zimatha kupirira kutentha kwambiri pantchito yoyambira. Silicon carbide ili ndi mwayi wowonjezera wokhala chinthu cholimba kwambiri.
Zida zathu za Clay Graphite Bilge Shape zidavotera 2750 °F (1510 °C). Adzagwira zinc, aluminium, mkuwa / bronze, siliva ndi golide. Wopangayo akuti atha kugwiritsidwa ntchito ngati chitsulo chachitsulo. Zapangidwa ku United States!
Maonekedwe a Crucible:
Chidutswa chopangidwa ndi bilge ("B" Shape) chimapangidwa ngati mbiya yavinyo. The "bilge" dimension ndi m'mimba mwake wa crucible pamtunda wake waukulu. Ngati palibe mainchesi omwe akuwonetsedwa ndiye kuti m'mimba mwake pamwamba ndiye m'lifupi mwake.
Lamulo la chala chachikulu likunena kuti # ya "bilge" crucible imapereka mphamvu yake yogwirira ntchito mu mapaundi a aluminiyamu. Pamkuwa kapena mkuwa gwiritsani ntchito katatu kuposa crucible #. Mwachitsanzo # 10 crucible imatha kukhala ndi pafupifupi mapaundi 10 a aluminiyamu ndi mapaundi 30 amkuwa.
Ma crucibles athu a "B" amagwiritsidwa ntchito ndi zomwe amakonda komanso ochita masewera pafupipafupi. Izi ndi zamtengo wapatali kwambiri, zokhalitsa kwanthawi yayitali zamalonda.
Yang'anani m'magome omwe ali pansipa kuti mupeze kukula koyenera kwa ntchito yanu.
Momwe Mungagwiritsire Ntchito:
Ma crucibles onse amayenera kugwiridwa ndi zomangira zoyenerera bwino (chida chonyamulira). Zingwe zosayenera zimatha kuwononga kapena kulephera kwathunthu kwa crucible panthawi yoyipa kwambiri.
Diski ya makatoni ikhoza kuyikidwa pakati pa crucible ndi ng'anjo m'munsi musanayambe kutentha. Izi zidzawotcha, kusiya mpweya wa carbon pakati ndikuletsa crucible kuti isamamatire pansi pa ng'anjo. Chophimba cha Plumbago (Carbon Black) chimachita zomwezo.
Ndi bwino kugwiritsa ntchito crucible yosiyana pamtundu uliwonse wazitsulo kuti musatengeke. Onetsetsaninso kuti muchotse kwathunthu crucible mukatha kugwiritsa ntchito. Chitsulo chosiyidwa kuti chikhale cholimba mu crucible chimatha kukulitsa kutentha ndikuchiwononga.
Chonde tenthetsani zotengera zatsopano kapena zomwe zasungidwa. Kutenthetsa crucible yopanda kanthu kwa maola awiri pa 220 F (104 C). (Gwiritsirani ntchito mpweya wokwanira. Miyendo yatsopano idzasuta pamene glaze iyamba.) Kenaka yatsani crucible yopanda kanthu ku kutentha kofiira. Lolani crucible kuziziritsa kutentha kwa chipinda mu ng'anjo musanagwiritse ntchito. Njirayi iyenera kutsatiridwa pazitsulo ZONSE zatsopano ndi crucible iliyonse yomwe ingakhale yonyowa posungira.
Sungani zitsulo zonse pamalo ouma. Chinyezi chimapangitsa kuti crucible iwonongeke potentha. Ngati yasungidwa kwa nthawi yayitali ndi bwino kubwereza kupsya mtima.
Silicon carbide crucibles ndi mtundu wocheperako womwe ungatenge madzi posungira ndipo nthawi zambiri safunikira kutenthedwa musanagwiritse ntchito. Ndibwino kuyatsa crucible yatsopano pamoto wofiyira musanagwiritse ntchito koyamba poyendetsa ndikuumitsa zokutira ndi zomangira za fakitale.
Zinthuzo ziyenera kuyikidwa mu crucible momasuka. OSATI "kunyamula" crucible, popeza zinthuzo zidzakula pakuwotcha ndipo zimatha kusokoneza ceramic. Izi zikasungunuka kukhala "chidendene", sungani mosamala zinthu zambiri mumadzi kuti zisungunuke. (CHENJEZO: Ngati chinyontho CHILICHONSE chilipo pa zinthu zatsopano KUPUKA kwa nthunzi kudzachitika). Apanso, musamangirire mwamphamvu muzitsulo. Pitirizani kudyetsa zinthuzo kuti zisungunuke mpaka kuchuluka kofunikira kusungunuka.
CHENJEZO !!!: Mitanda ndi yowopsa. Kusungunula zitsulo mu crucible ndikoopsa. Kuthira zitsulo mu nkhungu ndikoopsa. Chophimba chikhoza kulephera popanda chenjezo. Ma Crucibles amatha kukhala ndi zolakwika zobisika muzinthu ndi kupanga zomwe zingayambitse kulephera, kuwonongeka kwa katundu, kuvulala kwamunthu, kuvulala kwa omwe akuima ndi kutaya moyo.
Crucible Base Block
Kufotokozera:
BCS A base block ndi chopondapo cha kutentha kwambiri chomwe chimagwiritsidwa ntchito kukweza chitsulo cholowera kumalo otentha a ng'anjo.
Zomwe Imachita:
Chophimbacho nthawi zambiri chimagwiritsidwa ntchito mung'anjo yoyaka ndi gasi kukweza crucible kuti lawi lamoto lisawombere mwachindunji khoma lopyapyala la crucible. Ngati lawi loyatsa limaloledwa kugunda mwachindunji pa crucible lingayambitse kukokoloka kwa khoma la crucible motero kufupikitsa moyo wake. Njira yoyenera yopewera izi ndikugwiritsa ntchito chipika choyambira kukweza crucible kuchokera pamalo oyaka.
Kukweza crucible kumathandizanso kuti ikhale mu "malo otentha" a ng'anjo. Ngakhale moto woyaka umalowa m'thupi la ng'anjo pansi, malo otentha kwambiri amachokera pakati mpaka pamwamba. Ndi m'dera lino kuti makoma a ng'anjo amatenthedwa ndi mpweya wozungulira bwino kwambiri. Kukhala ndi mbali za crucible m'dera lino kumalimbikitsa kutentha kwabwino kwambiri kuchokera ku mpweya wovuta wa mpweya komanso kutentha kwa makoma amkati mwa ng'anjo yonyezimira.
Momwe Mungagwiritsire Ntchito:
Chophimbacho chiyenera kukhala chachitali kuti chowotchacho chigwirizane ndi pamwamba pa chipikacho. Zili bwino ngati pamwamba pa chipikacho ndi chokwera kuposa cholowera chowotcha. Zomwe simukufuna ndikuti lawi lamoto liwombe mbali zowonda kwambiri za crucible. Ndizovomerezekanso ngati lawi lamoto likagunda pansi pa crucible chifukwa gawoli silingathe kuvala kuchokera ku gasi.
Shandong Zhongpeng Special Ceramics Co., Ltd ndi imodzi mwamayankho akulu kwambiri a silicon carbide ceramic ku China. SiC ukadaulo wa ceramic: Kulimba kwa Moh ndi 9 (Kulimba kwa Moh Chatsopano ndi 13), kukana kwambiri kukokoloka ndi dzimbiri, abrasion yabwino - kukana ndi anti-oxidation. Moyo wautumiki wa SiC ndi 4 mpaka 5 nthawi yayitali kuposa 92% alumina. MOR ya RBSiC ndi 5 mpaka 7 nthawi ya SNBSC, itha kugwiritsidwa ntchito pazinthu zovuta kwambiri. Ndondomeko yobwereketsa ndi yofulumira, yobweretsera ndi monga momwe inalonjezedwa ndipo khalidweli ndi lachiwiri kwa wina aliyense. Nthawi zonse timalimbikira kutsutsa zolinga zathu ndikubwezeranso mitima yathu kwa anthu.
