SU455931A1 - Method of making large refractory products - Google Patents
Method of making large refractory productsInfo
- Publication number
- SU455931A1 SU455931A1 SU1914400A SU1914400A SU455931A1 SU 455931 A1 SU455931 A1 SU 455931A1 SU 1914400 A SU1914400 A SU 1914400A SU 1914400 A SU1914400 A SU 1914400A SU 455931 A1 SU455931 A1 SU 455931A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- refractory products
- making large
- large refractory
- mixture
- products
- Prior art date
Links
Description
33
3 мм. Из сухих зерен составл ют шихту, увлажн ют раствором сульфитно-спиртовой барды, после чего дополнительно пластифицируют смесью сол ной кислоты и поливииилацетатиой эмульсии в количестве 1 % при соэтиошении 2:1. Прессуют при влажности массы 8% и давлении 450 кг/см, высушивают и обжигают при температуре 1750° с выдержкой 6 час. Пористость изделий 2,5%, плотность 3,65 г/см, предел прочности при сжатии 4000 кг/см2.3 mm. Dry grains are made of dry grains, moistened with sulphite-alcohol stillage solution, and then further plasticized with a mixture of hydrochloric acid and emulsion polyvinyl acetate in an amount of 1% at 2: 1 ratio. Compressed at a moisture content of 8% and a pressure of 450 kg / cm, dried and calcined at a temperature of 1750 ° with a holding time of 6 hours. The porosity of products is 2.5%, the density is 3.65 g / cm, the compressive strength is 4000 kg / cm2.
Пример 3. Окись хрома измельчают до размера зерен менее 10 мкм, увлажн ют раствором сульфитио-сииртовой барды, после чего дополнительно пластифицируют смесью сол иой кислоты и поливинилацетатиой эмульсии в количестве 1,5% при соотиошепии 4:1, шликеруют при влажности массы 30%.Example 3. Chromium oxide is crushed to a grain size of less than 10 µm, moistened with a solution of sulphite sieve stillage, then further plasticized with a mixture of hydrochloric acid and emulsion polyvinyl acetate in an amount of 1.5% at a ratio of 4: 1, and ground at a moisture content of 30% .
Полученный шликер высушивают и затем зерн т до размера менее 0,5 мм. Из сухих зерен составл ют шихту, увлажн ют раствором сульфитно-спиртовой барды, после чего пластифицируют смесью сол иой кислоты и иоливинилацетатиой эмульсии в количестве 1,5°/о при соотиошеиии 4 : 1 прессуют при влажности массы 5% и давлении 500 кг/ск, высушивают и обжигают при температуре 1750° с выдержкой С) час. Пористость изделий 7,6%, плотность 4,51 г/см, предел прочности при сжатии 3150 кг/см2.The resulting slurry is dried and then grained to a size less than 0.5 mm. Dry grains are made of a mixture, moistened with a sulfite-alcohol stillage solution, and then plasticized with a mixture of hydrochloric acid and 1.5% i / v emulsion of an emulsion at a ratio of 4: 1 and pressed at a moisture content of 5% and a pressure of 500 kg / m , dried and calcined at a temperature of 1750 ° with exposure C) hour. The porosity of the products is 7.6%, the density is 4.51 g / cm, the compressive strength is 3150 kg / cm2.
Предмет изобретени Subject invention
Способ изготовлени крупногабаритных огнеупорных изделий из тонкоизмельченных окисных материалов путем смешени , увлажнени сульфитно-спиртовой бардой, гранулировани шихты, повторного увлажнени сульфитно-спиртовой бардой, прессовани и обжига , отличаюшийс тем, что, с целью повышени плотности и прочности, шихту каждый раз после увлажнени сульфитно-спиртовой бардой дополнительно пластифицируют смесью сол ной кислоты с органическим полимером в соотношении от 0,3: 1 до 4:1, которую ввод т в количестве 0,15-1,5 вес. %.A method of manufacturing large refractory products from finely divided oxide materials by mixing, moistening sulphite-alcohol barda, granulating the charge, re-wetting the sulphite-alcohol bardy, pressing and firing, characterized in that, in order to increase the density and strength, after each moisture, -alcoholic barda is additionally plasticized with a mixture of hydrochloric acid and an organic polymer in a ratio from 0.3: 1 to 4: 1, which is introduced in an amount of 0.15-1.5 weight. %
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1914400A SU455931A1 (en) | 1973-05-03 | 1973-05-03 | Method of making large refractory products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1914400A SU455931A1 (en) | 1973-05-03 | 1973-05-03 | Method of making large refractory products |
Publications (1)
Publication Number | Publication Date |
---|---|
SU455931A1 true SU455931A1 (en) | 1975-01-05 |
Family
ID=20551490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1914400A SU455931A1 (en) | 1973-05-03 | 1973-05-03 | Method of making large refractory products |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU455931A1 (en) |
-
1973
- 1973-05-03 SU SU1914400A patent/SU455931A1/en active
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