2022 isitini se-chrome corundum esisha

Izinzuzo zomkhiqizo: i-porosity ephansi, ukuqina okuphezulu, amandla aphezulu, ukumelana okuhle kokushisa okuphezulu, ukumelana okuhle nokubanda okukhulu nokushisa okukhulu, ukumelana okuhle kwe-slag, nokuqina okuhle.

incazelo yomkhiqizo

Izitini ezikhanyayo zeChromium corundum zihlanganiswa kusuka ku-Al2O3 ne-Cr2O3 emsulwa njengezinto zokusetshenziswa eziyinhloko. Uma kuqhathaniswa nezitini ezimsulwa ze-corundum, inezakhiwo ezingcono, ezinjenge-refractoriness, ukuthambisa ukushisa kwe-deformation ngaphansi komthwalo, amandla we-flexural, izinga lokushisa eliphakeme, ukuqina kwevolumu yokushisa okuphezulu nokumelana nokugqwala kwe-slag.

Izitini ze-Chrome corundum ziyizitini ze-corundum ezichasayo eziqukethe i-Cr2O3. Emazingeni okushisa aphezulu, i-Cr2O3 ne-Al2O3 yakha isisombululo esiqinile esiqhubekayo. Ngakho-ke, ukusebenza okuphezulu kokushisa kwezitini ze-chromium corundum kungcono kunezitini ze-corundum ezimsulwa. Izitini ze-chromium corundum ezisetshenziswa esithandweni segesi semboni ye-petrochemical kufanele zibe yi-silicon ephansi, i-iron ephansi, i-alkali ephansi, ubumsulwa obuphakeme, kepha futhi kufanele ibe namandla amakhulu namandla. Izitini ze-Chrome corundum zisetshenziswa kabanzi, futhi okuqukethwe yi-Cr2O3 ikakhulu kubanga elingu-9% kuye ku-15%.

Izitini ze-chrome corundum zibizwa nangokuthi ukugqoka okuphezulu kwe-chromium corundum ngokuthepha izitini zesiteshi. Kungumkhiqizo osezingeni eliphakeme okhuthazwa emakethe eminyakeni yamuva. It is synthesized from pure alumina Al2O3 and chromium oxide Cr2O3 as main raw materials. Uma kuqhathaniswa nezitini ze-corundum ezimsulwa, inezakhiwo ezingcono, ezinjenge-refractoriness, izinga lokushisa lokuthambisa umthwalo, amandla we-Flexural, izinga lokushisa eliphakeme, ukuzinza kwevolumu yokushisa okukhulu nokumelana nokugqwala kwe-slag. Isitini se-Chrome corundum siwuhlobo lwezinto zokuphikisa ezisezingeni eliphakeme, futhi impilo yenkonzo yayo ingafinyelela ezinyangeni eziyi-10 kuye kwezingu-18 ngemuva kwabasebenzisi abaningi besigayo.

Ukuzijwayeza kukhombisile ukuthi ukusetshenziswa kwezitini zesiteshi zokugqoka eziphakeme kakhulu ezingagcini esiteshini sokuthinta isithando somlilo sokushisa amabhilidi amakhulu, ukungqubuzana okuphezulu endaweni ngayinye kanye nokukhipha okuphezulu, hhayi nje kuphela okunganweba kakhulu impilo yenkonzo ngokuthepha isiteshi nokunciphisa ukuvalwa kwesithando somlilo isikhathi, ukwandisa ukukhiqizwa, ukunciphisa izindleko zokusetshenziswa kanye nokulungiswa kwezindleko, nokunciphisa inani lokupholisa nokushisa okusheshayo okubangelwa ukuvalwa kwesithando somlilo, ukuze impilo yonke yesithando ithuthukiswe, futhi izinzuzo ezisobala zomnotho zingatholakala.

Izinkomba zomzimba nezamakhemikhali

project	Isitini se-chrome oxide esiphakeme Cr-93	Isitini esimaphakathi se-chrome oxide Cr-86	Isitini se-Chrome Corundum Cr-60	Isitini se-Chrome Corundum Cr-30	Isitini se-Chrome Corundum Cr-12
I-Cr2O3%	≥93	≥86	≥60	≥30	≥12
I-Al2O3%	–	–	≤38	≤68	≤80
I-Fe2O3%	–	–	≤0.2	≤0.2	≤0.5
I-porosity ebonakalayo%	≤17	≤17	≤14	≤16	≤18
Ubuningi besisindo g / cm3	≥4.3	≥4.2	≥3.63	≥3.53	≥3.3
Amandla acindezelayo ekamelweni lokushisa MPa	≥100	≥100	≥130	≥130	≥120
Layisha ukuqala kokushisa okuthambile ℃ 0.2MPa, 0.6%	≥1680	≥1670	≥1700	≥1700	≥1700
Shintsha isilinganiso somugqa wokuvuselela kabusha% 1600 ℃ × 3h	± 0.2	± 0.2	± 0.2	± 0.2	± 0.2
Isicelo	Izitini eziphezulu ze-chromium zisetshenziswa kakhulu ezingxenyeni ezisemqoka zezikhuni ezifana nemboni yamakhemikhali yamalahle, izimboni zamakhemikhali, i-alkali-free glass fiber, izikhuni zokushisa udoti, njll .;
Isicelo	Izitini ze-Chrome corundum zisetshenziselwa kakhulu ulwelwesi lwama-carbon black furnaces, amalahle okuncibilikisa ithusi, amachibi okuncibilikisa amaziko engilazi, insimbi egingqikayo yokushisa amaslayidi esithandweni somlilo, namapulatifomu wokuthepha.