I-Corrosion Resistance Properties ye-Graphite Crucibles embonini ye-Metallurgical

Isingeniso

Embonini ye-metallurgical, ukusetshenziswa kwezinto ezisezingeni eliphezulu kubaluleke kakhulu ukuze kuqinisekiswe ukukhiqizwa okuphumelelayo nokuthembekile kwezinsimbi nama-alloys. Phakathi kwezinto ezihlukahlukene ezisetshenziswayo, ama-graphite crucibles athole ukuthandwa okuphawulekayo ngenxa yezakhiwo zawo ezihlukile zokumelana nokugqwala. Lesi sihloko sihlola izici zokumelana nokugqwala kweama-graphite crucibleskanye neqhaza labo elibalulekile ezinqubweni ze-metallurgical.

Ukumelana Nokugqwala kweI-Graphite Crucibles

I-graphite, uhlobo lwekhabhoni, ikhombisa ukumelana okumangalisayo nokuhlaselwa kwamakhemikhali kanye namazinga okushisa aphezulu, okuyenza ibe yinto efanelekile yezinsimbi embonini ye-metallurgical. Ukumelana nokugqwala kwe-graphite crucibles kubangelwa izici eziyingqayizivele ze-graphite ngokwayo. I-graphite inemvelo engasabeli, eyivimbela ukuthi ingasabeli nama-asidi amaningi, ama-alkali, nezinye izinto ezigqwalayo ezihlangabezana nazo ngesikhathi sokuncibilika kwensimbi nokukhiqizwa kwengxubevange.

▪ Ukumelana ne-Acidi:

I-graphite cruciblesbonisa ukumelana okuhle kakhulu nezindawo ezine-asidi. Bangakwazi ukumelana nemiphumela elimazayo yama-asidi afana ne-sulfuric acid, i-hydrochloric acid, ne-nitric acid. Le khwalithi ibalulekile ezinqubweni ezibandakanya ukuphatha ama-asidi, njengokukhiqizwa kwezinsimbi ezithile nama-oxide ensimbi.

▪ Ukumelana ne-Alkali:

Ngaphezu kwama-asidi,ama-graphite cruciblesbonisa ukumelana nama-alkali. Izinto ezine-alkaline, njenge-sodium hydroxide ne-potassium hydroxide, zivame ukusetshenziswa ezinhlelweni ezihlukahlukene ze-metallurgical.I-graphite cruciblesuhlale ungathinteki kulawa ma-alkali, uqinisekisa ubuqotho nokuphila isikhathi eside kwe-crucible phakathi nezinqubo ezinjalo.

▪ Ukumelana Ne-oxidation:

I-graphite inokumelana ne-oxidation okuhle kakhulu, ngisho namazinga okushisa aphezulu. Lapho ingaphansi kokushisa okudlulele, i-graphite yenza ungqimba oluyisivikelo lwe-graphite oxide ebusweni bayo, olusebenza njengesithiyo ngokumelene ne-oxidation eyengeziwe. Lesi sakhiwo sinenzuzo ikakhulukazi ezinhlelweni lapho ama-crucibles echayeka emkhathini we-oxidizing, njengokuncibilikiswa nokucwengwa kwezinsimbi.

I-Thermal Shock Resistance: Esinye isici esibalulekileama-graphite cruciblesukumelana kwabo nokushaqeka okushisayo. I-graphite ine-conductivity ephezulu yokushisa kanye ne-coefficient ephansi yokunweba okushisayo, okuyenza ikwazi ukumelana nokushintsha kwezinga lokushisa ngokushesha ngaphandle kokuqhekeka noma ukuphuka. Lokhu kumelana nokushaqeka okushisayo kubalulekile ezinqubweni ezibandakanya imijikelezo yokufudumeza nokupholisa ephindaphindiwe, njengokusakazwa kwensimbi nokukhiqizwa kwengxubevange.

Izinzuzo ze-Graphite Crucibles

Izakhiwo zokumelana nokugqwala kwe-graphite crucibles zinikeza izinzuzo ezimbalwa embonini ye-metallurgical:

▪ Ukuphila Okude:

I-graphite crucibles inesikhathi eside sokuphila uma iqhathaniswa nezinsimbi zendabuko ezenziwe ngezinto ezifana nobumba noma i-ceramic ngenxa yokumelana kwazo okuphakeme nokugqwala nokushaqeka okushisayo.

▪ Ikhwalithi Yomkhiqizo Ethuthukisiwe:

Imvelo engasebenzi ye-graphite crucibles iqinisekisa ukuthi insimbi encibilikisiwe noma i-alloy ihlala ingangcolisiwe, okuholela emikhiqizweni yokugcina yekhwalithi ephezulu.

▪ Ukusebenza Kwamandla:

I-graphite crucibles inokuguquguquka okuhle kwe-thermal, okuvumela ukudluliswa kokushisa okusebenzayo, ukusatshalaliswa kwezinga lokushisa okufanayo, kanye nokunciphisa ukusetshenziswa kwamandla ngesikhathi senqubo yokuncibilika.

Ukusebenza Kwezindleko: Nakuba ekuqaleni kubiza kakhulu kunezinye izinto ezikhiqizwayo, ama-graphite crucibles 'isikhathi esinwetshiwe sempilo nokusebenza okuphakeme kuwenza abe ukukhetha okubiza izindleko ngokuhamba kwesikhathi.

Isiphetho

I-graphite crucibles idlala indima ebalulekile embonini ye-metallurgical, ihlinzeka ngezinto ezihlukile zokumelana nokugqwala, ukumelana nokushaqeka okushisayo, nokumelana ne-oxidation. Ikhono labo lokumelana nezimo ezinzima ezihlangatshezwana nazo ngesikhathi sokuncibilika kwensimbi nokukhiqizwa kwe-alloy kubenza babaluleke kakhulu ezinqubweni ezihlukahlukene ze-metallurgical. Ngokukhetha ama-graphite crucibles, abakhiqizi bangaqinisekisa ikhwalithi yomkhiqizo ethuthukisiwe, impilo ende ye-crucible, ukusebenza kahle kwamandla, kanye nokusebenza kahle kwezindleko. Njengoba imboni ye-metallurgical iqhubeka nokuthuthuka, ama-graphite crucibles azohlala eyingxenye ethembekile nebalulekile ekuphishekeleni ukukhiqizwa kwensimbi okuphumelelayo nekhwalithi ephezulu.