Mold for Casting Metals

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention describes a metal casting mold made from high- or ultra-high-strength concrete that incorporates cellulose fibers. This specialized concrete mold is particularly suitable for pressure-assisted casting of metal alloys such as aluminum, magnesium, zinc, or tin. The inclusion of cellulose fibers improves the mold's thermal resistance and durability by creating a controlled pore network, allowing water vapor to escape safely during high-temperature use, thus preventing structural failure.

Use CasesContent extracted from patent full text and abstract with AI.

• Pressure die casting of aluminum, magnesium, zinc, or tin alloys for automotive and aerospace parts manufacturing.
• Production of thin-walled or complex metal cast components due to the mold's low thermal conductivity and high strength.
• Industrial-scale manufacturing where frequent casting cycles and long-term durability of metal molds are required.
• Casting operations requiring high chemical resistance and minimal contamination from the mold's material.
• Replacement for conventional steel molds in situations where lower thermal conductivity or specific heat management is beneficial.

BenefitsContent extracted from patent full text and abstract with AI.

• Higher durability and longevity under repeated thermal and mechanical cycling due to improved thermal shock resistance.
• Reduced risk of catastrophic mold failure since the controlled pore network allows safe escape of water vapor at high temperatures.
• Elimination or reduction of external mold release agents, simplifying process steps and reducing material costs and potential contamination.
• Enhanced casting precision and surface quality, especially for thin-walled or intricate castings, thanks to the mold's material properties.
• Decreased thermal conductivity compared to steel molds allows for longer metal flow distances before solidification, enabling fabrication of larger or more complex parts.
• Potential environmental advantages when using cement blends free from Portland cement, and when using recycled or alternative binders such as slag or metakaolin.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a mold (100) for casting metals (2), in particular for pressure-assisted casting of metal alloys based on aluminum, magnesium, zinc or tin. According to the invention, the mold (100) comprises a high-strength or ultra-strength concrete (10) which is produced with the addition of cellulose fibers.