Graphitized Petroleum Coke: "Mambo" Pakati peVanoisa Carburizing

Coke yepetroleum yakasanganiswa inonzi Graphitized inoonekwa se "mambo" pakati pezvinhu zvinogadzira carburizing nekuda kwekuchena kwayo kwakanyanya, crystallinity yakakura, mwero wakanaka wekunyudzwa kwayo, uye kugadzikana, zvichiratidza kukosha kusingatsiviwi munzvimbo dzakasiyana siyana dzakadai sesimbi, kugadzirwa kwezvigadzirwa zvegraphite, uye indasitiri yemauto. Ongororo inotevera inoitwa kubva pazvikamu zvitatu: hunhu hwepakati, zvakanakira maitiro, uye mamiriro ekushandiswa.

I. Hunhu Hukuru: "Majini Ehumambo" eGraphitized Petroleum Coke

Kuchena Kwakanyanya uye Kusachena Kwakaderera

Kabhoni yemafuta ine grafiti inorapwa ne graphitization inodziya zvakanyanya pa 2200 - 2600℃, iyo inobvisa tsvina yakawanda senge sarufa, nitrogen, uye dota. Kabhoni yayo yakagadzika inosvika 80% - 92%, ine sarufa yakaderera se ≤0.1% uye nitrogen yakawanda ≤0.5%. Hunhu uhwu hwekuchena kwakanyanya hunovimbisa kuti haiunze zvinhu zvinokuvadza panguva ye carburizing process, zvichivandudza zvakanyanya kunaka kwesimbi. Semuenzaniso, mukugadzira simbi, sarufa shoma inogona kuderedza "kupisa kushoma" uye kuwedzera ductility uye impact resistance yesimbi.

Kupenya Kwakakwirira uye Kugadzikana

Maitiro ekugadzira girafiti anoronga maatomu ekabhoni kuita chimiro chegirafiti chakajairwa, zvichigadzira chimiro chekristaro chakakwirira. Chimiro ichi chakasimba zvakanyanya pakupisa kwakanyanya uye hachiwanzo kurumwa neokisijeni kana kuora, zvichiita kuti carburization igare kwenguva refu. Kusiyana neizvi, petroleum coke isina grafiti inogona kuora pakupisa kwakanyanya, zvichikonzera kudzikira kwehuwandu hwekabhoni inonyungudika.

Maumbirwo ane maburi uye High Reactivity

Koke yepetroleum ine girafiti ine chigadziko chine maburi ane nzvimbo yakakura, zvichiita kuti ikwanise kukurumidza kusangana nekuora musimbi kana simbi inonyunguduka kuti igadzire nuclei, zvichivandudza zvakanyanya mwero wekunyungudutswa kwekabhoni. Ruzivo rwekuyedza runoratidza kuti mhedzisiro yayo yekunyungudutswa yakaenzana neyezvinhu zvinogadzira kabhoni zvine kabhoni inodarika 90%, asi ine kukurumidza kuita, izvo zvinogona kupfupisa nguva yekunyungudutswa ne10% - 15%, zvichiita kuti simba richengetwe uye rideredzwe kushandiswa.

II. Zvakanakira Maitiro: Kushandura Dombo kuita Goridhe kuburikidza neGraphitization Treatment

Kugadzirisa Kurongeka Kwemamorekuru

Kurapa kweGraphitization kunowedzera nzvimbo iri pakati pemaatomu ekabhoni, zvichigadzira chimiro chekristaro chine hexagonal chinobatsira pakuora. Chimiro ichi chinogona kuburitsa maatomu ekabhoni nekukurumidza musimbi inonyunguduka, zvichikurudzira graphite nucleation uye kuvandudza chimiro chegraphite chesimbi yakakandwa (sekuwedzera huwandu hwespheroidal graphite), nokudaro zvichiwedzera hunhu hwemakanika uye kugona kwekugadzira macasting.

Kuenzana pakati peMutengo neKushanda Zvakanaka

Kunyangwe kurapwa kwegraphitization kuchida kushandiswa kwesimba rinopisa zvakanyanya, mwero wayo wekunyudzwa kwepamusoro uye kugadzikana kunogona kuderedza huwandu hwecarburizing agent inoshandiswa (kazhinji 20% - 30% pasi pecarburizing agents dzinobva kumalahle) uye kuderedza kurasikirwa kwenguva yekushanda kwekugadzira kunokonzerwa nekugadziriswa kwakawanda kwezvikamu. Nekufamba kwenguva, mutengo wese wakaderera, uye unogona kuvandudza mhando yechigadzirwa zvishoma nezvishoma.

III. Maitiro Ekushandisa: "Mutambi Wese" Kubva paMetallurgy kusvika kuHigh Technology

Indasitiri yeMetallurgical: Vimbiso mbiri yeCarburization uye Kuvandudzwa kweHunhu

• Kugadzira Simbi: Nekuwedzera huwandu hwesimbi dzakasara uye kuderedza kushandiswa kwesimbi yenguruve, pamwe chete necarburization uchishandisa graphitized petroleum coke, mutengo we castings unogona kuderedzwa ne10% - 20%, ukuwo uchivandudza kuchena uye hunhu hwemakanika esimbi.
• Kukanda: Kunogadzirisa chimiro chegraphite uye giredhi rema "nodularity", zvichiwedzera hupenyu hwekushanda kwe "castings". Semuenzaniso, mukukanda ma "car engine cylinder blocks" emotokari, kushandiswa kwe "graphitized petroleum coke" kunogona kuwedzera kuramba kwekuneta kwe "castings" ne15% - 20%.

Kugadzirwa kweGraphite: Dombo rePakona reZvinhu Zvepamusoro-soro

Graphitized petroleum coke chinhu chakakosha pakugadzira mabhuroko makuru e cathode, ma electrode e carbon, ma electrode ane graphitized, uye ma electrode pastes anoshanda zvakanaka. Kuchena kwayo kwakanyanya uye crystallinity yayo inogona kusangana nezvinodiwa zvemaindasitiri zvinokura kusvika pakukura kukuru uye kukuru, zvichideredza kurasikirwa kwe oxidation pakupisa kwakanyanya uye kuwedzera hupenyu hwebasa remuchina.

Indasitiri yeMasoja: Mutambi Anogona Kuita Zvinhu Zvisingapindi Bulletproof

Dhaimani nhema (dhaimani repolycrystalline rechisikigo) rinoonekwa sechigadzirwa chedongo chemangwana chekudzivirira maroketi anoboora zvombo nekuda kwekuoma kwayo kukuru (kwechipiri kune dhaimani neboron nitride) uye kurema kwayo kwakaderera (2.52 g/cm³). Graphitized petroleum coke, kuburikidza nekugadzirwa kwakadzika, inogona kutsiva dhaimani nhema zvishoma mukugadzirwa kwezvinhu zvinosimbisa zvekushandisa zvehondo, zvichideredza kuvimba nezvinhu zvishoma.

Mamwe Maindasitiri: "Zvinhu Zvinobatsira Zvese" zvekushandisa paMhiri kweMaguta

• Indasitiri yeMakemikoro: Inoshanda semushonga wekuderedza kupisa, inopinza mushonga wekuderedza kupisa, uye inodzivisa kupisa.
• Indasitiri yeMagetsi: Inoshandiswa kugadzira mabhurashi ekabhoni, zvichivandudza kufambisa kwemhepo uye kuramba kupfeka.
• Indasitiri yeMabhatiri: Inoshandiswa muzvinhu zvemagetsi kuwedzera huwandu hwesimba uye hupenyu hwemasevhisi.
• Indasitiri yeMichina: Inoshanda semafuta ekuderedza kurasikirwa kwekukweshana.

Mhedziso: "Nzira yeUmambo" yeGraphitized Petroleum Coke

Coke yemafuta ine grafiti yakaisa chiyero chakakosha mukugadzira zvinhu zvinogadzira carburizing zvine hunhu hwayo hwepanyama nemakemikari. Haingogadzirisi matambudziko ekusachena kwakanyanya uye mwero wakaderera wekunyudzwa kwezvinhu zvinogadzira carburizing zvechinyakare asiwo inokurudzira kuvandudzwa kwezvinhu mukugadzira simbi, kugadzirwa kwezvigadzirwa zvegrafiti, uye indasitiri yemauto kuburikidza nekusimba kwayo kwakanyanya. Nekuwedzera kwekudiwa kwekuchengetedza simba, kuderedza kusvibiswa, uye kugadzirwa kwepamusoro-soro, "chinzvimbo cheumambo" checoke yemafuta ine grafiti chichawedzerwa, zvichiita kuti ive "dhaimani dema" rinokosha mukuvandudza maindasitiri.