Refractoriness℃ | Heat resistance① Sieve pass rate % | Bulk density g/cm3
| Air Permeability② | Thermal expansion rate % |
＞1800 | 90 | 1.48 | 310 | -0.06 |
①Temperature maintained at 1,500 °C for 10 minutes, vibrate the screen with aperture 3.35mm for 1 minute, and measure the pass rate;
②particle size test of 50/100.
Features
1.Low crushing rate, low abrasion rate, reduce solid waste emission;
2.Long high-temperature heat-resistant time after coating, reducing sand sticking and sintering phenomenon in castings;
3.Low thermal conductivity, low thermal expansion, which helps to improve the dimensional accuracy of castings;
4.Low angular coefficient, rounded grain shape, higher strength than other materials under the same conditions, and good air permeability.
Product application
