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High Silica Fiberglass Filter Mesh for Molten Aluminum Steel foundry Filtration
High Silica fiberglass filter mesh is
weaved with high silica fiberglass yarn and coated with special refractory
coating. It can effectively remove slag, refractory particles and non-metallic
inclusions from molten metals. After special treatment, high silica mesh
filters are capable of withstanding pouring temperatures up to 1620℃.
High Silica fiberglass mesh is an ideal filter for in-mold filtration of gray,
malleable, white, compacted graphite and ductile cast irons, as well as non-ferrous
aluminum and copper-based metal alloys and many types of small scale steel
casting filtration. Besides the function of molten metal filtration, it also could
be used for riser knock-off or de-gating knock-off. Investment casters have
also placed the preformed cup shape filters in the wax mold gating system to
filter metal at pattern entry. It is developed as a low cost but with rather
filtration efficiency alternative to ceramic filters.
Product Features
• Low cost and easy to use
• Improves fluidity and metal distribution
• Removes micron sized inclusions and impurities
• Can be used with existing pattern equipment
• Eliminates inclusions created by ceramic chips
Product Parameters
SiO2 content |
≥96% |
Softening Point |
1700℃ |
Working Temperature |
≤1620℃ |
Sustaining Working Time |
5 minutes |
Tensile Strength |
16kg/4 ends |
Color |
Dark brown, black |
Mesh Size |
0.8mm/1.0mm/1.5mm/2.0mm/2.5mm |
Density |
300-600 g/cm2 |
Thermal Shock Resistance |
≥2times/1100ºC‐Room temperature |
Specification:
Item |
Density |
Mesh size |
Porosity |
SiO2 |
Thickness |
HSWM-15 |
580g/m2 |
1.5x1.5mm |
0.19 |
≥96% |
0.98mm |
HSWM-20 |
460g/m2 |
2.0x2.0mm |
0.24 |
≥96% |
0.98mm |
HSWM-25 |
350g/m2 |
2.5x2.5mm |
0.33 |
≥96% |
0.98mm |
Note: other specifications made as requests.
Application:
- Cut pieces for in mold filtration like sand casting, gravity casting, etc.
- Cut pieces for riser sleeves, bottom or across ports in walls
- Cut pieces to provide a weakened plane for riser knock-off
- Cup shapes for investment casting