Ndezvipi zvinhu zvinokanganisa kuramba kwe oxidation kwema graphite electrodes?

Kuramba kwe graphite electrodes kunokonzerwa nekusanganiswa kwezvinhu, zvinosanganisira tembiricha, kuwanda kwe oxygen, chimiro chekristaro, hunhu hwe electrode (senge graphitization degree, bulk density, uye simba remakanika), dhizaini ye electrode (senge mhando yemajoini uye thermal expansion compatibility), uye kurapwa kwepamusoro (senge antioxidants coatings). Inotevera iongororo yakadzama yezvinhu izvi:

1, Tembiricha:
Mwero wekuoxidation wemaelectrode egraphite unowedzera zvakanyanya nekupisa kuri kukwira. Pamusoro pe450°C, graphite inotanga kuita zvine simba neokisijeni, uye mwero wekuoxidation unowedzera zvakanyanya kana tembiricha ikapfuura 750°C.
Pakupisa kwakanyanya, makemikari ari pamusoro pegirafiti anowedzera kusimba, zvichikonzera kukurumidza kuoxidation. Semuenzaniso, mumaovheni emagetsi, tembiricha yekumusoro kweelectrode inogona kudarika 2000°C, zvichiita kuti oxidation ive chikonzero chikuru chekushandiswa kweelectrode.

2, Kuwanda kweOxygen:
Kuwanda kweokisijeni chinhu chakakosha chinokanganisa mwero weokisijeni wemaelectrode egraphite. Pakupisa kwakanyanya, kufamba kwekupisa kwemamorekuru eokisijeni kunowedzera, zvichiita kuti akwanise kuroverana negraphite uye kukurudzira maitiro eokisijeni.
Munzvimbo dzemaindasitiri dzakadai semaovheni emagetsi, mhepo yakawanda inopinda nepamaburi emagetsi anofukidza ovheni nemasuo eovheni, zvichiunza okisijeni uye zvichiwedzera oxidation ye electrode.

3, Crystal Structure:

Maumbirwo ekristaro egraphite haana kusimba uye anogona kurwiswa nemaatomu eokisijeni. Pakupisa kwakanyanya, maumbirwo ekristaro egraphite anowanzo chinja, zvichikonzera kudzikira kwekugadzikana uye kukurumidza kuoxidation.

4, Zvimiro zveElectrode Material:

• Dhigirii reGraphitization: Maelectrode ane mwero wepamusoro wegraphitization anoratidza kuramba kuri nani kweoxidation uye kushandiswa kushoma. Graphite yakachena kwazvo, ine tembiricha yegraphitization inowanzo kusvika pa2800°C, inoratidza kuramba kwakanyanya kweoxidation zvichienzaniswa nemaelectrode emagetsi egraphite (ane tembiricha yegraphitization inosvika 2500°C).
• Kuwanda Kwemagetsi: Simba remuchina, elastic modulus, uye kupisa kwema electrode e graphite zvinowedzera nekuwanda kwemagetsi, ukuwo resistivity uye porosity zvichidzikira. Kuwanda kwemagetsi kune simba rakananga pakushandiswa kwema electrode, nema electrode ane kuwanda kwemagetsi achiratidza kuramba kuri nani kwe oxidation.
• Simba reMichina: Maelectrode eGraphite haangosanganiswi nehuremu hwawo chete nemasimba ekunze asiwo nemasimba ekupisa etangential, axial, uye radial panguva yekushandiswa. Kana kumanikidzwa kwekupisa kunopfuura simba remichina reelectrode, kutsemuka kana kutotyoka kunogona kuitika. Nokudaro, maelectrode ane simba remichina rakawanda anodzivirira kupisa zvakanyanya uye anodzivirira zviri nani oxidation.

5, Dhizaini yeElectrode:

• Hunhu Hwemajoini: Majoini ndiwo mapoinzi asina simba emaelectrode uye anogona kukuvara kupfuura muviri weelectrode. Zvinhu zvakaita sekubatana kwakasununguka pakati pemaelectrode nemajoini, uye kusawirirana kwemajoini ekuwedzera kwekushisa zvinogona kukonzera kukurumidza kuoxidation uye kutotyoka pamajoini.
• Kuenderana Kwekuwedzera Kwekupisa: Kusawirirana kwema coefficients ekuwedzera kwekupisa pakati pezvinhu zve electrode nenzvimbo yakapoteredza kunogonawo kukonzera kutsemuka kwe electrode. Kana electrode ikatsemuka pakupisa kwakanyanya, kana nzvimbo yakapoteredza kana zvinhu zviri kusangana ne electrode zvikasakwanisa kuwedzera zvinoenderana, kushushikana kunoitika, zvichizopedzisira zvaita kuti patsemuke.

6, Kurapa Pamusoro:
Kushandiswa kwezvinodzivirira kukuvadza kunogona kuwedzera zvakanyanya kusimba kwe graphite electrodes. Semuenzaniso, RLHY-305 graphite antioxidant coating inoumba dense antioxidant coating pamusoro pe substrate, ichipa hunhu hwakanaka hwekuvhara. Inoparadzanisa okisijeni kubva ku graphite pakupisa kwakanyanya, ichivhara kusangana pakati pe graphite ne oxygen, uye inowedzera hupenyu hwezvigadzirwa zve graphite ne 30%.
Kurapa nekuisa mishonga yekudzivirira muviri inzira inoshanda yekudzivirira muviri. Nekuisa mishonga yekudzivirira muviri mu graphite electrodes kuburikidza nekuisa mishonga yekudzivirira muviri kana kuinyudza mumuviri, kuramba kwe electrodes ne oxidation kunogona kuvandudzwa.