Rto Ceramic Honeycomb Ceramic Filters for Casting (HCF)
Product Description
Honeycomb Ceramic Filter also can be called Extruded Ceramic Filters or Molten Metal Cellular Filters, are widely used as molten metal filtration
in metallurgical and foundry industries. This product has the characters of excellent resistance to thermal shock, high strength, high porosity and specific surface area.
With its unique straight channel honeycomb designs, it can increase the specific
surface area between molten metal and ceramic filter, thereby to
improve its adsorptive and capturing tiny impurities ability, so as to get ride of non-metal impurity and gas, make the metal liquid steady, purify metal liquid. It can not only reduce casting cost, but also improve casting quality.
Advantages:
*Advanced casting filter manufacturer
*High strength and high thermal shock resistance
*Fast delivery
Physical and Chemical Properties
| Item | Value | Test Method | |
| Chemical Composition (%) | Al2O3 | ≥90% | Chemical titration |
| SiO2 | ≤8% | Gravimetric Method | |
| Other | ≤2% | Chemical Titration | |
| Compressive Strength (Mpa) | A axis | ≥2.2 | Universal Material Testing Machine |
| B axis | ≥2.5 | ||
| C axis | ≥0.18 | ||
| Water Absorption (%) | 18.5±2 | Gravimetric Method | |
| Softening Temperature (celsius degree) | ≥1380 | High-temperature Electric Resistance Furnace | |
| Thermal Coefficient of Expansion (room temperature ~800celsius degree) (cm/cm/celsius degree) | ≤5.7x10-6 | Expansion Indicator NETZSCH DIL 402PC | |
| Thermal Shock Resistance (room temperature ~650celsius degree) | 650celsius degree 20 minutes/cycle, five cycles no cracking | Air Cooling | |