In the casting process of aluminum and aluminum alloys, riser tubes are a crucial component and are widely used in low-pressure casting processes. As the core channel for aluminum liquid transportation, riser tubes directly affect the quality, production efficiency and cost of castings. As a company focusing on the research and development and production of foundry materials, SF-Foundry focuses on the research of high-performance silicon nitride riser tubes and aluminum titanate riser tubes, and is committed to providing reliable solutions for the aluminum casting industry.
This article will deeply analyze the application advantages of these two high-performance riser tubes in the low-pressure casting process, including professional content such as material properties, structural design, use and maintenance, to help foundry companies optimize production processes and improve casting quality.
The role of high-performance riser in aluminum casting
The role of the riser is to controllably transport molten aluminum from the holding furnace or tundish to the mold or crystallizer through air pressure.
In the low-pressure casting system, the riser is responsible for:
- Aluminum liquid delivery channel: smoothly transport molten aluminum from the holding furnace to the mold cavity
- Control flow: accurately control the flow rate of aluminum liquid through air pressure or mechanical adjustment.
- Prevent oxidation/inclusion: reduce the contact between aluminum liquid and air, and avoid oxide film and impurities.
Performance of the riser tube in the aluminum die-casting process
Molten aluminum has high corrosive and high temperature (700~900°C) characteristics, so the riser tube must meet the following requirements:
- Super corrosion resistance: almost no reaction with molten aluminum
- Excellent mechanical strength: bending strength up to 600-800MPa
- Excellent thermal shock resistance: can withstand rapid cooling and heating above 1000℃
- Extremely long service life: 3-5 times longer than traditional materials
Typical application scenarios:
- High-end aluminum alloy wheel casting
- New energy vehicle structural parts production
- Aerospace precision casting manufacturing
SF-Foundry professional technical support and services
SF-Foundry is committed to providing high-quality industrial ceramic products and professional technical support to the global casting industry, helping customers achieve efficient and stable aluminum casting production.
We can also provide matching casting materials for aluminum plants to help customers optimize the aluminum casting process:
- Aluminum filtration system: ceramic foam filter
- Degassing purification equipment: graphite rotor
- Pouring control system: automatic ladle
Conclusion
Silicon nitride and aluminum titanate riser tubes are driving the aluminum casting process towards a more efficient and precise direction with their excellent performance. Correct selection and use of high-performance riser tubes can significantly improve casting quality and reduce production costs.
SF-Foundry will continue to innovate and provide customers with better silicon nitride riser tubes and aluminum titanate riser tubes, as well as complete technical services, to help foundry companies improve their market competitiveness.
If you want to know more about riser tubes or other foundry materials, please contact SF-Foundry. We will provide you with professional technical advice and customized solutions.
- Email: info@sf-foundry.com
- WhatsApp: +8613785803358