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Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste

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Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste

Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste
Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste

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Aluminum Titanate Ceramic Sprue Bush with Superior Insulation and Corrosion Resistance to Reduce Feeder Waste

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Superior Insulation Ceramic Sprue Bush

,

Corrosion Resistance Aluminum Titanate Sprue Bush

,

Reduces Feeder Waste Sprue Bush

Aluminum Titanate Sprue Bush – Breaking the Limitations of Metal Sprue Bushes to Optimize Casting Feeders
Say Goodbye to Feeder Waste! How Aluminum Titanate Ceramic Sprue Bushes Optimize the Temperature Field in Low-Pressure Casting
In the low-pressure casting process, the sprue bush is the transitional component connecting the riser tube to the mold. Although small in size, it plays a decisive role in the solidification sequence and internal quality of the casting.
Traditional metal sprue bushes (e.g., cast iron or tool steel) have long presented a challenge: designed for cooling, they conduct heat too quickly. This causes the molten aluminum at the sprue to solidify prematurely, cutting off the feeding path. This forces process designers to enlarge feeders to compensate, resulting in significant material waste.
The advent of the Aluminum Titanate ceramic sprue bush provides the perfect solution to this dilemma.
From Fast Cooling to Heat Preservation: A Revolution in Sprue Bushes
The Aluminum Titanate sprue bush completely transforms traditional design concepts through its unique material properties:
  • Superior Insulation, Establishing an Ideal Temperature Gradient
    Aluminum Titanate has an extremely low thermal conductivity coefficient. This superior insulation property keeps the molten aluminum inside the sprue bush at a high temperature. While the casting solidifies and cools within the mold cavity, the aluminum at the sprue remains liquid, creating an ideal temperature gradient ("higher at the sprue, lower in the cavity"). This ensures that during solidification shrinkage, liquid aluminum can continuously flow from the sprue bush to feed the mold cavity.
  • Reducing or Even Eliminating Feeders, Improving Material Utilization
    By effectively keeping the feeding channel open, internal shrinkage porosity defects in the casting are significantly reduced. More importantly, process engineers can greatly reduce the size of feeders, and in some processes, even achieve feeder-less casting. This not only saves aluminum material but also reduces the cost of subsequent cutting operations.
  • Corrosion Resistance, Solving Metal Contamination Problems
    Aluminum Titanate exhibits high corrosion resistance and non-wetting properties against molten aluminum. Iron elements from traditional metal sprue bushes can slowly dissolve into the aluminum, forming hard spots that damage cutting tools and affect surface treatment quality. Aluminum Titanate sprue bushes completely eliminate this risk, ensuring high purity of the molten aluminum.
Technical Specifications
Item Result Unit
Density >3.4 g/cm³
Apparent porosity <7 %
Flexural strength 25 - 35 MPa
Thermal expansion coefficient 0.5 - 1.5 ×10⁻⁶/°C
Thermal conductivity 0.86 - 1.00 W/(m*k)
Max. Working temperature <1500 °C
Typical Applications
  • Automotive aluminum alloy wheel casting
  • Complex cylinder heads or intake manifolds
  • High-demand aerospace castings
The Aluminum Titanate sprue bush is more than just a simple replacement part; it is a process optimization tool. By improving the thermal balance, it helps you produce better castings with less material.

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Tonerde keramisch

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