Production of lightweight corundum refractories with a low apparent density by a semidry pressing method

Refractories ◽  
1983 ◽  
Vol 24 (5-6) ◽  
pp. 240-242
Author(s):  
Ya. Z. Shapiro ◽  
A. N. Gaodu ◽  
O. V. Zhuchenko ◽  
G. E. Karas' ◽  
A. A. Mukhin ◽  
...  
Keyword(s):  
Apparent Density ◽  
Pressing Method ◽  
Lightweight Corundum ◽  
Semidry Pressing

Study on the Preparation and Properties of CaZr0.9in0.1O3-α and BaCe0.85Y0.15O3-α Solid Electrolytes

2011 ◽  
Vol 287-290 ◽  
pp. 939-942 ◽  
Author(s):  
Yu Shi Ding ◽  
Ying Li ◽  
Yi Zhang ◽  
Chang Zhen Wang
Keyword(s):  
Apparent Density ◽  
Injection Moulding ◽  
Solid Electrolytes ◽  
Single Phase ◽  
Pressing Method ◽  
Isostatic Pressing ◽  
Preparation Conditions ◽  
Hot Injection ◽  
Good For

CaZr0.9In0.1O3-α and BaCe0.85Y0.15O3-α two kinds of solid electrolytes were prepared, and the preparation conditions were determined. DSC-TG curves were used to illustrate the synthetic mechanism of CaZr0.9In0.1O3-α and BaCe0.85Y0.15O3-α, and XRD analyses indicate these two solid electrolytes are single phase after calcining at 1400°C for 10h. The isostatic pressing method and hot injection moulding method were used to prepare CaZr0.9In0.1O3-α and BaCe0.85Y0.15O3-α tubes. Through comparing the apparent density of sintered tubes, it is found that isostatic pressing shaping method is good for improving the compactness of CaZr0.9In0.1O3-α sintered tubes, and hot injection moulding shaping method is good for improving the compactness of BaCe0.85Y0.15O3-α sintered tubes.

The optimum apparent density of steel casting plugs made by semidry pressing

Refractories ◽  
1965 ◽  
Vol 6 (5-6) ◽  
pp. 272-277
Author(s):  
I. Sh. Shvartsman ◽  
Yu. F. Mikhailov ◽  
Kh. M. Papakin ◽  
Zh. A. Vydrina ◽  
N. V. Kuznetsova ◽  
...  
Keyword(s):  
Apparent Density ◽  
Steel Casting ◽  
Semidry Pressing

scholarly journals Investigation of the compressibility of low-cement corundum castable with the addition of chromium oxide depending on moisture and pressing pressure

2017 ◽  
Vol 117 ◽  
pp. 84-93
Author(s):  
V. V. Primachenko ◽  
I. G. Shulik ◽  
T. G. Galchenko ◽  
E. B. Protsak ◽  
L. V. Belik
Keyword(s):  
Compressive Strength ◽  
Carbon Black ◽  
Chromium Oxide ◽  
Apparent Density ◽  
Open Porosity ◽  
Pressing Pressure ◽  
Research Results ◽  
Semidry Pressing

The mass compressibility of composition low-cement corundum castable with an addition of chromium oxide, depending on its moisture (2.5, 3.0, 3.5, 4.0, 4.5 %) and specific pressing pressure (50, 75, 100 N/mm2) has been investigated. The optimum moisture of the forming mass (3.0—3.5 %) and the pressing pressure (100 N/mm2), which ensure the production of fresh-formed samples with an apparent density of 3.14 g/cm3, dried (after hardening in humid conditions for 7 days ) with an apparent density of 3.03—3.04 g/cm3, and fired samples with an apparent density, open porosity and compressive strength, respectively, of 2.97—2.98 g/cm3, 24.8—25.0 %, 80—83 N/mm2, were established. The obtained research results can be used at the enterprises producing carbon black for the products manufacture by semidry pressing or ramming methods from the delivered by PJSC “UKRNIIO NAMED AFTER A. S. BEREZHNOY” dry mixtures containing all the necessary mass components. The products ramming, as well as pressing, must be carried out up to obtain an apparent density of fresh-formed green not less than 3.14 g/cm3.

Study of the apparent density in 7 m industrial coke ovens

1989 ◽  
Vol 86 (5) ◽  
pp. 387-392
Author(s):  
W. Eisenhut ◽  
F. Huhn ◽  
F. Strelow
Keyword(s):  
Apparent Density ◽  
Coke Ovens
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