Chinopfuta uye Chinoputika

Chibairo chesimbi chinoshandiswa muhari yeceramic kuchengetedza simbi kuti inyungudike muchoto. Ichi chibairo chemhando yepamusoro, chemhando yepamusoro chinoshandiswa neindasitiri yekugadzira zvinhu zvemaindasitiri.

Chinonyungudika chinodiwa kuti chitsungirire kupisa kwakanyanya kunosangana nesimbi dzinonyungudika. Chinhu chinonyungudika chinofanira kunge chine nzvimbo yakanyanya yekunyungudika kupfuura simbi iri kunyungudika uye chinofanira kunge chine simba rakanaka kunyangwe chinopisa chichena.

Chitofu chesilicon carbide chinodziya zvakanyanya ifanicha yakanaka kwazvo yechoto yezvigadzirwa zvemaindasitiri, yakakodzera kupisa nekunyungudutsa zvigadzirwa zvakasiyana-siyana, uye inoshandiswa zvakanyanya mumakemikari, peturu, kuchengetedzwa kwezvakatipoteredza nedzimwe nzvimbo. Chitofu chesilicon carbide ndicho chikamu chikuru chemakemikari chesilicon carbide germanium, chine hunhu hwekuomarara kwakanyanya. Kuomarara kwechitofu chesilicon carbide kuri pakati pe corundum nedhaimani, simba rayo remuchina rakakwirira kupfuura re corundum, ine mwero wekupisa wakakwira, saka inogona kuchengetedza simba rakawanda.

RBSiC/SISIC crucible uye sagger mudziyo weceramic wakadzika mubasin. Nekuti unopfuura midziyo yegirazi pakudzivirira kupisa, unoshandiswa zvakanaka kana chinhu chakasimba chikapiswa nemoto. Sagger ndeimwe yemidziyo yemoto yekupisa porcelain. Mhando dzese dzeporcelain dzinofanira kuiswa mumasaggers kutanga dzozoiswa muchoto kuti dzigocherwe.

Chinonyungudutsa silicon carbide ndicho chinhu chikuru chezvishandiso zvemakemikari, igaba rimwe chete rinogona kushandiswa kunyungudutsa, kuchenesa, kudziyisa uye kuita chimwe chinhu. Saka mamodheru nehukuru hwakawanda zvinosanganisirwa; hapana muganho kubva pakugadzirwa, huwandu kana zvinhu.

Chinonyungudutsa chesilicon carbide imidziyo yeceramic ine chimiro chedeep bowl iyo inoshandiswa zvakanyanya muindasitiri yesimbi. Kana zvinhu zvakasimba zvikapiswa nemoto mukuru, panofanira kunge paine mudziyo wakakodzera. Zvakakosha kushandisa chinonyungudutsa paunenge uchidziya nekuti chinogona kutsungirira kupisa kwakanyanya kupfuura girazi uye zvakare kuve nechokwadi chekuchena kubva mukusvibiswa. Chinonyungudutsa chesilicon carbide hachigone kuzadzwa zvakawandisa nezviri mukati zvakanyungudutswa nekuti zvinhu zvinopisa zvinogona kubikwa uye kupfapfaidzwa. Zvikasadaro, zvakakoshawo kuchengetedza mhepo ichitenderera zvakasununguka kuti pave nemhedzisiro ye oxidation.

Cherechedza:
1. Chengetai chakaoma uye chakachena. Chinofanira kupiswa kusvika 500℃ zvishoma nezvishoma musati mashandisa. Chengetai ma crucible ese munzvimbo yakaoma. Hunyoro hunogona kukonzera kuti crucible itsemuke painodziiswa. Kana yagara yakachengetwa kwenguva yakati, zvakanaka kudzokorora kuidziisa. Ma silicon carbide crucibles ndiwo asinganyanyi kunyudza mvura iri mudura uye kazhinji haadi kunyoroveswa musati mashandisa. Ipfungwa yakanaka kupinza crucible itsva pamoto mutsvuku musati maishandisa kekutanga kuti ibvise uye iomese ma coating nema binders emufekitori.
2. Isa zvinhu izvi mu silicon carbide melting crucible zvichienderana nehuwandu hwazvo uye chengeta nzvimbo yakakodzera kudzivirira kuputsika kwekupisa. Zvinhu izvi zvinofanira kuiswa mu crucible zvisina kusimba. USAMBO "rongedza" crucible, sezvo zvinhu izvi zvichawedzera pakupisa uye zvinogona kupwanya ceramic. Kana zvinhu izvi zvanyunguduka kuita "chitsitsinho", nyatsoisa zvinhu zvakawanda mugomba kuti zvinyunguduke. (YAMBIRO: Kana paine hunyoro pachinhu chitsva, mhute inoputika). Zvakare, usasunga simbi zvakasimba. Ramba uchiisa zvinhu mu melting kusvika huwandu hunodiwa hwanyunguduka.
3. Zvibatiso zvese zvinofanirwa kubatwa nembato dzakanyatsokodzera (chishandiso chekusimudza). Mbato dzisina kukodzera dzinogona kukonzera kukuvara kana kukundikana zvachose kwechibatiso panguva yakaipa zvikuru.
4. Dzivisa moto une oxidized wakasimba uchibvira zvakananga pamoto unopisirwa. Izvi zvinopfupisa nguva yekushandisa nekuda kwe oxidation yezvinhu.
5. Usaise silicon carbide inonyunguduka inodziya pasimbi inotonhora kana pamusoro pehuni nekukasika. Kutonhora kamwe kamwe kunokonzera kutsemuka kana kuputsika uye pamusoro pehuni unogona kukonzera moto. Ndapota siya padhina kana ndiro isingapindi mvura woirega ichitonhorera yega.