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SU390050A1 - REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS - Google Patents

REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS

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Publication number
SU390050A1
SU390050A1 SU1696180A SU1696180A SU390050A1 SU 390050 A1 SU390050 A1 SU 390050A1 SU 1696180 A SU1696180 A SU 1696180A SU 1696180 A SU1696180 A SU 1696180A SU 390050 A1 SU390050 A1 SU 390050A1
Authority
SU
USSR - Soviet Union
Prior art keywords
refractory material
manufacture
temperature filters
aluminum nitride
magnesium
Prior art date
Application number
SU1696180A
Other languages
Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1696180A priority Critical patent/SU390050A1/en
Application granted granted Critical
Publication of SU390050A1 publication Critical patent/SU390050A1/en

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  • Ceramic Products (AREA)
  • Filtering Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

1one

Изобретение относитс  к металлургической промышленности, в частности к огнеупорным материалам дл  изготовлени  высокотемпературных фильтров дл  непосредственного определени  газов в жидких алюминиевых сплавах в плавильных печах при 680 - 870°СThe invention relates to the metallurgical industry, in particular to refractory materials for the manufacture of high-temperature filters for the direct determination of gases in liquid aluminum alloys in melting furnaces at 680-870 ° C.

Р1звестен огнеупорный материал на осно-ве нитрида алюмини . Такой материал имет низкую пористость, котора  не превышает 20%j а низкую термическую стойкость.Refractory material based on aluminum nitride is known. Such a material has a low porosity which does not exceed 20% j and a low thermal resistance.

В цел х устранени  этих недостатков предлагаемый огнеупорный материал содержит 60 - 90 вес.% нитрида алюмини  и, кроме того , 10 - 40 вес.% магни .In order to eliminate these disadvantages, the proposed refractory material contains 60 to 90 wt.% Aluminum nitride and, in addition, 10 to 40 wt.% Magnesium.

Огнеупорный материал получают следующим образом.Refractory material is obtained as follows.

Смешивают порошки нитрида алюмини  и магни  в необ.ходимы.к количествах. Из полученной смеси формуют заготовки прессованием или методом лить  термопластичных шликеров с последуюшим спеканием заготовок при 1800°С а азоте в засыпке из нитрида бора . Полученный материал обладает следующими свойствами;Mix powders of aluminum nitride and magnesium in the required quantities. From the mixture obtained, the blanks are molded by pressing or by pouring thermoplastic slips with subsequent sintering of the blanks at 1800 ° C and nitrogen in a boron nitride charge. The resulting material has the following properties;

Пористость, %50 - 60Porosity,% 50 - 60

Термостойкость (1200 -20°С, воздух) более 100Heat resistance (1200 -20 ° С, air) more than 100

|Количество теплосмен| Number of heat cycles

Стойкость в расплавленном алюмИнИйResistance in melted aluminum

при 900°Сне смачиваетс at 900 ° C not wetted

П р е д М е т изобретени PRED ME of the invention

Огнеупорный материал дл  изготовлеий  высокотемпературных фильтров на основе нитрида алюмини , отличающийс  тем, что, с целью повышени  пористости и термической стойкости, он содержит в вес. %:Refractory material for the manufacture of high temperature filters based on aluminum nitride, characterized in that, in order to increase porosity and thermal stability, it contains in weight. %:

Нитрид алюмини 60-90Aluminum nitride 60-90

и, кроме того, магний10-40and, moreover, magnesium 10-40

SU1696180A 1971-08-13 1971-08-13 REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS SU390050A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1696180A SU390050A1 (en) 1971-08-13 1971-08-13 REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1696180A SU390050A1 (en) 1971-08-13 1971-08-13 REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS

Publications (1)

Publication Number Publication Date
SU390050A1 true SU390050A1 (en) 1973-07-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1696180A SU390050A1 (en) 1971-08-13 1971-08-13 REFRACTORY MATERIAL FOR THE MANUFACTURE OF HIGH-TEMPERATURE FILTERS

Country Status (1)

Country Link
SU (1) SU390050A1 (en)

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