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Normal and vacuum device

Products required for atmospheric and vacuum devices: lightweight mullite brick series products and supporting clay and lightweight castable series products.

Classification:

Keywords: high-strength wear-resistant materials wear-resistant corrosion-resistant materials

Description

Products required for atmospheric and vacuum devices: lightweight mullite brick series products and supporting clay and lightweight castable series products.

SQM series lightweight thermal insulation castable

SQM series technical performance indicators

Performance grade Bulk density Kg/m3 Compressive strength MPa Bending strength MPa Line change rate % Thermal conductivity w/m. k
110℃ 110℃ 815℃ 110℃ 815℃ 350℃
SQM-1300 ≤1300 ≥6 ≥5 ≥2 ≤0.3 ≤0.35
SQM-1200 ≤1200 ≥5 ≥4.5 ≥1.5 ≤0.4 ≤0.3
SQM-1000 ≤1000 ≥4 ≥3.5 ≥1.3 ≤0.45 ≤0.25
SQM-900 ≤900 ≥3 ≥2.5 ≥1.0 ≤0.5 ≤0.23
SQM-800 ≤800 ≥6 ≥2.1 ≥0.8 ≤0.5 ≤0.21
SQM-700 ≤700 ≥6 ≥1.8 ≥0.7 ≤0.55 ≤0.17
SQM-500 ≤500 ≥6 ≥1.2 ≥0.6 ≤0.6 ≤0.15

High temperature mullite insulation bricks

Physical and chemical indicators of high temperature mullite insulation bricks

Project Trademark
KDM-23 KDM-26 KDM-28
Refractory degree ℃ 1260 1430 1540
Bulk density Kg/m3 780 780 880
Normal temperature compressive strength Mpa ≥1.3 ≥1.6 ≥2.1
1500℃×8h reheat line change% ≤1.0 ≤1.0 ≤1.0
Thermal conductivity w/m.k 600℃ 0.16   0.38
800℃ 0.18 0.31 0.40
Chemical composition% Al2O3 ≥37.0 ≥58.0 ≥62.0
Fe2O3 ≤1.2 ≤1.0 ≤0.8
Thermal shock stability
(900℃~air cooling) times
    ≥20

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