Mineral Castings
Mineral castings, also known as resin concrete, serve as an excellent material for mechanical base components.
Mineral Castings
Phone:+1(912)4192388
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Composition of mineral castings: Primarily composed of epoxy resin, curing agents, and other filler materials.
Application fields of mineral castings: Machine tools, automation equipment, laser equipment, PCBs, and semiconductor processing.
Mineral castings represent a new energy-saving and environmentally friendly structural material that replaces cast iron while outperforming both cast iron and marble.
I. High Damping Performance:
Mineral castings reduce vibration 10 times more effectively than cast iron and approximately 15 times more than steel. This streamlines equipment installation and commissioning procedures, minimizes steps, and reduces time. It delivers optimal imaging during optical sensor detection, ensures stability for rapid scanning and inspection, and enhances machining precision of workpieces.
High Precision:
Traditional castings exhibit dimensional accuracy of 1-3mm/m after demolding. while mineral casting materials achieve 0.1-0.3mm/m. Their low thermal conductivity slows response to external temperature changes, enhancing overall dimensional accuracy. Post-processing precision now reaches up to 0.005mm/m, with dimensional stability maintained within 0.005mm across a 40°C temperature range—a capability unmatched by any metallic material.
Excellent Chemical and Mechanical Stability:
Resists corrosion from media such as engine oil, corrosive solutions, acids, and common coolants.
Short Production Cycle:
Employing a one-step manufacturing process, mineral cast products are produced in a single casting. Components made from mineral cast materials have shorter production cycles than traditional cast iron or steel counterparts. This offers significant economic benefits, particularly for high-volume production runs.
Flexible Design and Manufacturing:
Utilizing embedded technology integrates various mechanical components. Screws or inserts, slotted pins or locating pin holes, trapezoidal grooves/slots, conduits, wires, through-holes, and piping can all be cast into mineral casting products. This high design包容性 reduces post-processing workload and enhances production efficiency.
Competitive Advantages Mineral Castings Offer Customers
Reduced Upfront Investment.
In industries where equipment volumes are relatively low but precision and aesthetic requirements are high—such as certain machinery sectors—initial mold investments can be substantial, ranging from hundreds of thousands to tens of millions. Mineral castings enable the design of equipment with intricate details and compact overall structures, significantly reducing mold costs, post-processing expenses, and assembly fees. This approach also helps small and medium-sized equipment manufacturers avoid unnecessary upfront capital expenditures.
Cost Reduction. Utilizing mineral castings enables:
reduced machining workload; lower assembly costs; and decreased logistics expenses. Overall, employing mineral castings as the equipment's main body while embedding numerous structural components within the casting optimizes equipment design in multiple aspects. This approach achieves a comprehensive cost reduction of at least 20%. The more complex the structure and the higher the precision requirements, the more pronounced the advantages of mineral castings become.
Substantially Enhance Equipment Precision and Stability.
Mineral cast iron bed bodies possess exceptional rigidity, effectively neutralizing forces induced by linear motor acceleration. Simultaneously, their excellent vibration-absorbing properties, when integrated with linear motors, significantly improve workpiece surface quality and extend grinding wheel lifespan.
Enhance product quality and reduce after-sales service.
Designing the equipment mainframe with mineral castings and embedding numerous components within them substantially increases structural complexity while simultaneously simplifying and optimizing the overall equipment structure. The exceptional vibration absorption properties of mineral castings significantly extend the service life of moving structures and components.
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Project
Steel
Cast iron
Natural marble
Mineral Castings
Density
High,≈7.85 g/cm³
High,≈7.2 g/cm³
China,≈2.7 g/cm³
China,≈2.4–2.8 g/cm³
Modulus of Elasticity
Extremely high,≈200 GPa
High,≈100–120 GPa
China,≈50–60 GPa
China,≈40–50 GPa
Thermal Expansion
High,≈11.5×10⁻⁶/℃
Mid-to-high,≈10–11×10⁻⁶/℃
Low,≈6–8×10⁻⁶/℃
Low,≈6–9×10⁻⁶/℃
Damping / Shock Absorption
Poor
Generally
Good
Excellent
Dimensional Stability
Generally
Better
Excellent
Excellent
Processability
Easy to machine and weld
Easy to cast, difficult to machine
Highly brittle, difficult to machine, prone to chipping
Near-net forming with minimal subsequent machining
Corrosion Resistance
Generally,Rust prevention required
Generally,Prone to rust
Susceptible to weak acids and prone to weathering
Excellent, acid and alkali resistant, moisture resistant
Cost
Mid-to-high
Low
China
Mid-to-low
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Q: What is mineral castings?
A: Mineral castings are a composite material primarily composed of natural mineral aggregates (such as quartz and granite fragments, accounting for approximately 90%) mixed with a polymer resin binder (typically epoxy resin, accounting for approximately 10%). It is poured into molds and cured to form the required mechanical structural components.
Q: What is the primary advantage of mineral castings?
A: The core advantage is its exceptionally high damping properties (vibration absorption). Its shock absorption capacity is 6-10 times that of cast iron and 30 times that of steel. This means using mineral castings as machine tool beds significantly reduces machining vibrations, improving surface finish quality and tool life.
Q: How is its thermal stability?
A: Excellent. Mineral castings exhibit an extremely low thermal expansion coefficient and poor thermal conductivity (making them less susceptible to ambient temperature fluctuations). This enables them to maintain exceptional geometric precision under varying temperatures, making them highly suitable for precision measuring equipment and high-end machine tools.
Q: Are the mold costs high? What is the development cycle?
A:Compared to wooden or metal molds required for cast iron, mineral casting molds (typically made of fiberglass or metal) are lower in cost with shorter manufacturing cycles. For small to medium production runs, they offer greater advantages in upfront investment.
Q: Do mineral castings require stress relief treatment?
A: No. Cast iron parts need extended natural or artificial aging to eliminate internal stresses and prevent deformation. Mineral castings generate minimal internal stresses during curing and can undergo precision machining immediately after pouring, significantly shortening production cycles.
Mineral Castings
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