Fused Silica Cib

1. Muaj zog thermal poob siab tsis kam, ruaj khov khoom, SiO2 cov ntsiab lus siab dua 99%, zoo heev corrosion kuj thiab acid kuj.

2. Tsawg Fe 2O3 cov ntsiab lus tsawg dua 0.1%, rau cov khoom (xws li iav kua, thiab lwm yam)

3. Tsawg flux Performance index (Al2O3+2R2O) tsawg dua 0.3%, corrosion kuj, zoo kub kuj.

4. Fused silica bricks thermal expansion coefficient yog ze rau xoom, thiab tsis muaj cov pob qij txha expansion yuav tsum tau tshwj tseg thaum kho, uas ua rau kom nruj ntawm cov masonry.

5. Nws tsis yooj yim rau kev ua raws li cov pa roj carbon monoxide nyob rau hauv qhov kub thiab txias thiab siv tau ntev, thiab muaj kev tiv thaiv zoo rau kev yaig los ntawm cov hlau molten.

6. Cov thermal stability zoo heev, cov khoom yuav tsis tawg thaum lub sij hawm kho kub, thiab kev kho kev ua haujlwm tuaj yeem nqa ncaj qha rau ntawm qhov kub thiab txias yam tsis muaj qhov cub tawg.

7. Tom qab kho (kub kho), yuav tsis muaj tev thiab lwm yam tshwm sim, thiab nws muaj kev nyab xeeb thiab txhim khu kev qha rau kev siv mus ntev.

8. Tsis tas yuav ua rau lub cub tawg ntev ntev tom qab masonry; tsis xav tau preheating.

1. Kev xaiv ntawm particle muaj pes tsawg leeg
Lub looseness thiab sintering ntawm siliceous dawb paug thaum lub sij hawm cua sov nyob ntawm qhov xwm thiab tus naj npawb ntawm ntxhib thiab nplua particle qhov ntau thiab tsawg hauv cov particle muaj pes tsawg leeg. Thaum siv cov cib dawb uas muaj cov khoom zoo, nws yog qhov zoo los txo qis qis thaum lub sij hawm tua hluav taws, txo cov kab nrib pleb thiab ntim hloov hauv lub cev cib, txhim kho cov khoom lag luam, thiab nce cov ntsiab lus ntawm tridymite hauv cov khoom, tab sis cov khoom zoo ntawm lub cib. av nkos kuj yuav ua rau kom cov porosity ntawm fused silica cib. Qhov loj me me ntawm silica bricks feem ntau yog 2-3mm.
2. Moulding
Cov yam ntxwv ntawm silica cib molding yog pom nyob rau hauv cov yam ntxwv molding ntawm silica cib blanks thiab complex tsos thiab zoo sib txawv ntawm silica bricks. Siliceous blanks yog ib qho nyuaj, tsis tshua muaj kev sib raug zoo thiab cov khoom siv plasticity tsawg, yog li lawv cov compression thiab compacting yog tsawg. Lub molding kev ua tau zoo ntawm siliceous blanks yog cuam tshuam los ntawm lawv cov particle muaj pes tsawg leeg, noo noo thiab additives. Kho cov khoom no tuaj yeem txhim kho kev ua haujlwm molding ntawm blanks. Rau qhov khoob ntawm txhua qhov muaj pes tsawg leeg, ua kom lub siab molding tuaj yeem ua kom qhov ntom ntom ntawm xoom-expansion silica cib. Txhawm rau kom tau txais cov cib dense, cov moulding siab yuav tsum tsis txhob tsawg tshaj li 100-150 mpa mpa.
3. Kev tua
Silica bricks tau hloov pauv theem thiab hloov pauv loj thaum lub sijhawm tua hluav taws. Tsis tas li ntawd, cov kua nplaum uas tsim los ntawm cov cib ntawm qhov kub thiab txias yog qhov me me (li 10% lossis tsawg dua), ua rau nws nyuaj rau hluav taws ntau dua li lwm cov khoom siv refractory. Kev tua hluav taws ntawm xoom-expansion silica cib tsis muaj dab tsi cuam tshuam nrog kev hloov pauv ntawm lub cev thiab tshuaj lom neeg uas tshwm sim hauv cov cib thaum lub sij hawm tua, tus naj npawb thiab cov khoom ntawm cov neeg koom, qhov loj ntawm lub cev, thiab cov yam ntxwv ntawm kev tua hluav taws. kiln.