SU810648A1 - Charge for making refractory articles - Google Patents
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- SU810648A1 SU810648A1 SU792746643A SU2746643A SU810648A1 SU 810648 A1 SU810648 A1 SU 810648A1 SU 792746643 A SU792746643 A SU 792746643A SU 2746643 A SU2746643 A SU 2746643A SU 810648 A1 SU810648 A1 SU 810648A1
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- USSR - Soviet Union
- Prior art keywords
- charge
- refractory articles
- making refractory
- oxide
- products
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- Photoreceptors In Electrophotography (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
1one
Изобретение относитс к окисным высокоогнеупорным материалам дл кварцевого стекловарени .FIELD OF THE INVENTION The present invention relates to high-refractory oxide materials for quartz glass melting.
Известна шихта дл изготовлени спеченного термостойкого огнеупора, включающа двуокись циркони , стабилизированную на 75% окисью кальци и 3-8% алюминатом кальци .The known charge for the manufacture of sintered heat-resistant refractories, including zirconia, stabilized by 75% calcium oxide and 3-8% calcium aluminate.
Наиболее близкой по технической сущности и достигаемому результату к изобретению вл етс шихта, включающа двуокись циркони , окисел щелочно-земельного элемента и окисел редкоземельного элемента .The closest in technical essence and the achieved result to the invention is the charge, including zirconium dioxide, alkaline earth oxide and rare earth oxide.
Недостатком этих огнеупорных материалов вл етс низка термостойкость и плоха спекаемость.The disadvantage of these refractory materials is their low heat resistance and poor sintering properties.
Цель изобретени - повышение плотности и термостойкости изделий.The purpose of the invention is to increase the density and heat resistance of products.
Поставленна цель достигаетс тем, что шихта дл изготовлени огнеупорных изделий , включающа двуокись циркони , окись щелочноземельного элемента, окись редкоземельного элемента, дополнительно содержит окись титана или кремни при This goal is achieved by the fact that the charge for the manufacture of refractory products, including zirconia, alkaline earth oxide, rare earth oxide, additionally contains titanium oxide or silicon
следующем соотношении the following ratio
компонентов, вес. %:components weight. %:
Двуокись циркони 65-95 Окись щелочноземель0 ,1-5 ного элемента Окись редкоземель0 ,1-27 ного элемента Окись титана или 0,5-8 кремни Zirconium dioxide 65-95 Alkaline earth oxide 0, 1-5 element oxide Rare earth0, 1-27 element oxide Titanium oxide or 0.5-8 silicon
Изготовление изделий производ т следующим образом.The manufacture of products is as follows.
В начале двуокись циркони стабилизируют при 1700-1750°С добавкой 12 мол. % (ЬпзОз+МеО) или 8 мол. % (2Оз+МеО), а затем стабилизированную Zr02 перемешивают с тонкодисперсной SiO2 (или TiO2). Смесь увлал н ют 5%-ным раствором поливинилового спирта, после чего массу с влажностью 5-8% прессуют при удельном давлении 500-1000 кгс/см. Обжиг производ т при температуре не ниже 1700°С.At the beginning, zirconium dioxide is stabilized at 1700-1750 ° C with the addition of 12 mol. % (HpzOz + MeO) or 8 mol. % (2Oz + MeO), and then stabilized Zr02 is mixed with finely dispersed SiO2 (or TiO2). The mixture is removed by a 5% solution of polyvinyl alcohol, after which the mass with a moisture content of 5–8% is pressed at a specific pressure of 500–1000 kgf / cm. Calcination is carried out at a temperature not lower than 1700 ° C.
В табл. 1 приведены примеры и свойства приготовленных по вышеупом нутой технологии изделий в сравнении с прототипом.In tab. 1 shows examples and properties of products prepared according to the aforementioned technology in comparison with the prototype.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792746643A SU810648A1 (en) | 1979-01-24 | 1979-01-24 | Charge for making refractory articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792746643A SU810648A1 (en) | 1979-01-24 | 1979-01-24 | Charge for making refractory articles |
Publications (1)
Publication Number | Publication Date |
---|---|
SU810648A1 true SU810648A1 (en) | 1981-03-07 |
Family
ID=20819496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792746643A SU810648A1 (en) | 1979-01-24 | 1979-01-24 | Charge for making refractory articles |
Country Status (1)
Country | Link |
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SU (1) | SU810648A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0460959A2 (en) * | 1990-06-07 | 1991-12-11 | Japan Abrasive Co., Ltd. | Fused zirconia refractory materials having high-temperature heat resistance and corrosion resistance and a method for producing the same |
-
1979
- 1979-01-24 SU SU792746643A patent/SU810648A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0460959A2 (en) * | 1990-06-07 | 1991-12-11 | Japan Abrasive Co., Ltd. | Fused zirconia refractory materials having high-temperature heat resistance and corrosion resistance and a method for producing the same |
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