Flourish Cheng Naicai is fireproof material grooms test subject

Flourish Cheng Naicai is fireproof material grooms test subject
One, judge a problem1, Ao Simai is special slag line, because get juice of high temperature frit,give makings mouth and cuttings pick-up opening acuteness erode and slag is eroded, service life has the in part of other place only. ()
2, the 90% above that blast furnace of refine lead zinc occupied furnace of plumbic zinc smelt in the past, suffer influence of environmental protection element to be mixed by furnace of oxygen boosting side-blown stage by stage now oxygen boosting bottom blows furnace to wait replace. ()
3, what cement is united in wedlock is pouring makings need not restrict when signing a contract protect character period. ()
4, the use quantity of indeterminate form material in the kiln furnace of smelt of heavy nonferrous metal is more than finalize the design the use quantity of firebrick. ()
5, water quality is shown alkalescent when, pouring the sclerotic speed of makings can be accelerated, begin sclerosis in agitate process even. ()

2, problem of fill a vacancy

1, the sort of magnesian chromic brick can be divided commonly for __________________ , __________________ , __________________ , __________________ .
2, the reserves of stone of our country zirconium is occupied in the whole world than having ____ only, zirconium stone basically applies at vitreous industry, the siliceous zirconium product that makes through broken, crocus, extract basically applies at ______ .
3, bases includes siliceous zirconium _________ and __________ , bulk density is ____g/cm3, the bulk density of the zirconia that joins carbolic element material to be made through electric frit can achieve ______g/cm3.
4, fireproof material is pouring expect what use commonly is aluminous acerbity calcic cement, among them _______ becomes CA-50 cement with lime fire, _______ becomes CA-60, CA-70 and CA-80 with lime fire.
5, the use oxygen gun that in grooming this, tells undertakes 3 kinds blowing oxygen the furnace of the operation has __________________ , __________________ , __________________
3, essay questionIs cement union pouring is stuff long what does not sclerotic reason have?
The answer: Judgement is inscribed 1, (√ ) 2, (√ ) 3, (× ) 4, (× ) 5, (√ ) fill a vacancy is inscribed 1, common magnesium chromic brick combines magnesian chromic brick directly half recombine magnesium is chromic recombine of bricky report frit is magnesian chromic brick 2, 1% , ceramics industry 3, the zirconia of 67.1% , the 2 oxidation silicon of 32.9% , 4.6, 5.95 ～ 6.0 4, aluminium is aluminous Alumina 5, oxygen boosting bottom blows furnace, furnace of oxygen boosting side-blown, ao Simai is special furnace. Essay question 1. Cement invalidation; 2. The amount that add water is too large; 3. Winter construction, air temperature is too low; 4. Water quality is bad, slant acidity.