Mineral Casting

Company advantages
 

Our certificate

It has more than 40 trademark patent certificates and more than 20 QC certificates, such as ISO 9001, CE, SGS.

 

Advanced equipment

The factory has 6 ultra-high-precision machines for drilling and grooving products, and has 4 high-precision surface grinders and other high-end ultra-precision equipment.

Professional team

We have the technology and industry expertise to develop solutions that connect people and businesses across a variety of mobile devices.

 

Rich experience

Founded in 1998, it is mainly engaged in the processing and casting of precision mechanical metal parts and has 20 years of experience in the manufacturing industry.

 

What is Mineral Casting

 

Mineral casting is also known as epoxy granite, granite composite, and polymer-bonded mineral casting. It's an alternative to parts made from grey cast iron or steel. Mineral casting is made from a combination of materials like cement, granite, and quartz sand. It has reinforcing fibers and nanoparticles.Mineral casting features clear technological, economic and ecological advantages over steel, gray cast iron or cast iron. Its excellent vibration damping, chemical resistance and thermal stability not only impress users in machine tool manufacturing, but also in many other industries such as medical technology, solar technology,

 

  • Cast Iron Machine Base
    Engineered Stability for Ultra-Precision Applications In high-end manufacturing, machine stability is not optional-it defines performance. Our precision mineral casting machine base is engineered...
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  • Precision Mineral Casting Base
    Product Story & Value Proposition In the world of ultra-precision engineering, every micron matters. That's why UNPARALLELED Group engineered this custom mineral casting base - not just as a...
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  • Polymer Concrete Base
    Overview As the industry standard-bearer, UNPARALLELED® provides the most advanced Mineral Casting (also known as Polymer Concrete) solutions for the global high-tech sector. In an era where...
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  • UNPARALLELED® Mineral Casting
    Overview Engineering Stability Beyond Traditional Materials In the pursuit of nanometer-level accuracy, traditional cast iron and steel often fall short due to thermal instability and vibration...
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  • Cast Iron Composite Materials
    In the evolution of high-end manufacturing, the limitations of traditional gray iron and steel welds have become increasingly apparent. UNPARALLELED® Mineral Casting (also known as Polymer...
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  • Epoxy Granite Machine Base
    Since its introduction to the market (1980 year ago) as a modern material, mineral casting (also called epoxy granite or polymer concrete) is has presented an important alternative to conventional...
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  • Mineral Casting Machine Base
    UNPARALLELED Nano-polymer Mineral composite machine bases are made of nanometer mineral components (silica, alumina, calcium oxide, etc.) as cementing materials and high-quality granite and quartz...
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Benefits of Mineral Casting

High precision

Machine tool mineral castings are characterized by high precision, and their manufacturing process is very exquisite, which can accurately control the size and shape of the castings. The precision of machine tool components manufactured using machine tool mineral castings can reach a very high level and can meet the needs of high-precision machine tools.

High stability

Machine tool mineral castings are also characterized by high stability because their material properties are very uniform, ensuring the stability of machine tool components. Moreover, because the manufacturing process of machine tool mineral castings is relatively mature, its quality is also very reliable and will not cause problems such as deformation due to changes in the environment.

High reliability

Machine tool mineral castings are made of high-strength, high-hardness materials and feature high reliability. This material can reduce mechanical wear, extend the service life of machine tool components, and improve machine tool reliability.

 

Long life

Machine tool mineral castings have some anti-wear and anti-fatigue additives added during the manufacturing process, so they have long service life. Compared with traditional iron castings, steel parts and other materials, machine tool mineral castings have a longer service life and can bring longer-lasting economic benefits.

 

Application of Mineral Casting

 

 

Mineral castings are widely used in manufacturing industries, such as machine tools, automobiles, aerospace and other fields. In high-precision machine tool manufacturing, machine tool mineral castings can greatly improve the accuracy of machine tools and improve the manufacturing efficiency of machine tools. In the automotive field, machine tool mineral castings can be used to manufacture automotive parts and enhance the structural strength and safety of automobiles. In the aerospace field, machine tool mineral castings can be used to manufacture high-strength, high-precision parts such as engine parts and seats.

 

What Is The Difference Between Mineral Castings and Traditional Castings?
Mineral Casting Machine Base

 

Production process

 

Traditional castings are generally produced using sand molds, metal molds, etc. This production method is relatively simple and low-cost. Mineral castings are produced using professional molds such as plaster molds and light wave irradiation molds, which require more high-end production equipment and technology.

 

Material selection

 

Traditional castings usually use materials such as iron, steel, copper, and zinc. Mineral castings use some minerals with special physical or chemical properties as materials, such as gypsum, quartz, graphite, etc. This material can better meet the needs of some special processes and special materials.

 

Performance

 

 

Traditional castings perform fairly well in terms of heat resistance, corrosion resistance, mechanical strength and other properties, while mineral castings have superior performance in these aspects. For example, in terms of corrosion resistance, mineral castings have better corrosion resistance; in terms of fire resistance, mineral castings will not lose their structural retention ability due to the influence of high temperatures.

 

Mineral Casting Performance Requirements
 

Static Performance
The criterion for measuring the static performance of a base is usually the stiffness of the material - minimal deformation under load - rather than high strength. For static elastic deformation, mineral castings can be considered as isotropic homogeneous materials obeying Hooke's law. The density and elastic modulus of mineral castings are 1/3 of cast iron respectively. Since mineral castings and cast iron have the same specific stiffness, under the same weight, the stiffness of cast iron parts and mineral castings is the same without considering the influence of shape. In many cases, mineral castings are designed with wall thicknesses that are usually three times that of iron castings, and this design does not cause any problems with the mechanical properties of the product or casting.

 

Dynamic Characteristics
The greater the rotational speed and/or acceleration of the shaft, the more important the dynamic performance of the machine becomes. Rapid positioning, rapid tool change, and high-speed feed continuously enhance the mechanical resonance and dynamic excitation of machine tool structural parts. In addition to the dimensional design of the component, the deflection, mass distribution and dynamic stiffness of the component are largely influenced by the damping properties of the material. The use of mineral castings solves these problems well. Because its vibration absorption capacity is 10 times better than traditional cast iron, it can greatly reduce the amplitude and natural frequency.
In machining operations such as machining, it results in higher accuracy, better surface quality and longer tool life. At the same time, in terms of noise impact, through comparison and verification of bases, transmission castings and accessories of different materials for large engines and centrifuges, mineral castings also performed well. According to impact sound analysis, mineral castings can achieve a local reduction of 20% in sound pressure levels.

 

Thermal performance.
Experts estimate that approximately 80% of machine tool deviations are caused by thermal effects. Process interruptions such as internal or external heat sources, preheating, changing workpieces, etc. are all causes of thermal deformation. In order to be able to select the best material, it is necessary to clarify the material requirements. High specific heat and low thermal conductivity give mineral castings good thermal inertia against transient temperature effects (such as changing workpieces) and ambient temperature fluctuations. If, like a metal bed, rapid preheating is required or the bed temperature is prohibited, heating or cooling devices can be cast directly into the mineral casting to control the temperature. Using this temperature compensation device can reduce deformation due to temperature effects and help improve accuracy at a reasonable cost.

 

Manufacturing Process of Mineral Castings

 

1) Raw material proportioning mineral castings are made of sand, filler, resin adhesive, curing agent, retarder and other raw materials in a certain percentage. The ratio of raw materials often has a greater impact on mineral castings. In addition, the type, hardness, particle size, shape and moisture content of sand and gravel will have a greater impact on the strength of mineral castings. Therefore, only through continuous research and development, testing and optimization of raw material ratio can better mineral castings be produced.

 

2) The process of uniform distribution and full mixing of various sands, fillers, adhesives and additives through a mixer or a CNC continuous mixer. The mixing time shall not be too short, otherwise the mixing is insufficient; At the same time, it is required to stir evenly to make the sand and gravel filler fully wetted, otherwise the performance of the products after casting will be affected.

 

3) The mold fabrication and component assembly shall pre fabricate the corresponding special mold, and integrate the damping characteristics of mineral casting materials such as wire pipes, hydraulic pipes, forklift grooves, cooling water pipes, chip removal grooves, steel parts and cast iron materials in other links into the mold in advance, so as to facilitate the overall casting and molding of the castings.

 

4) Pouring: Pour the fully mixed raw materials into the pre prepared mold. Similar to ordinary cast iron casting, this process should be completed as quickly as possible. At the same time, it is necessary to reduce bubbles through mechanical vibration, so that raw materials can be quickly and tightly combined. Compared with the casting of cast iron, the casting is completed at room temperature, with low energy consumption, meeting the requirements of low-carbon, energy-saving and environmental protection.

 

How to Maintain Mineral Casting

 

1

Cleaning and maintenance: During the use of mineral casting, it is easy to accumulate dust, oil and other impurities, which will affect the service life of the casting. Regular cleaning of the surface of castings can effectively prevent the accumulation of dust, oil and other impurities and extend the service life of castings.

2

Lubrication and maintenance: Lubrication is often one of the key factors in the service life of mineral castings. When using castings, parts need to be lubricated regularly to reduce friction between parts and prevent wear of moving parts. In addition, you can also choose high-quality lubricating oil and refueling equipment to ensure the lubrication effect.

3

Anti-corrosion maintenance: During long-term use, mineral casting is easily corroded by gas, moisture, etc. in the environment. If anti-corrosion treatment is not carried out, the aging and damage of castings will be accelerated. For castings made of different materials, different anti-corrosion methods can be adopted, such as coating with anti-corrosion paint, galvanizing, etc.

4

Temperature maintenance: Temperature is also an important factor affecting the service life of mineral castings. Therefore, when using castings, you need to pay attention to the ambient temperature to avoid castings being exposed to high or low temperatures for a long time. If the casting is exposed to a high temperature environment for a long time, the casting will be deformed or even damaged due to the thermal expansion of the metal.

5

Maintenance records: For important mineral castings, every maintenance situation needs to be recorded during use. This helps to detect problems in time and solve them in time, and also helps to extend the life of castings.

 

Our Factory

 

UNPARALLELED started in 1998, and UNPARALLELED is mainly engaged in the processing and casting of precision machinery metal parts. Later, in 1999, it began to research and produce high -precision granite components and precision granite measuring tools. In 2003, UNPARALLELED began to develop and produce precision ceramic components, Ceramic measuring tools and mineral casting (also known as artificial granite, resin concrete, resin granite components, etc.). UNPARALLELED is a benchmark in the precision manufacturing industry. It can be said that the "UNPARALLELED" is already synonymous with the most advanced ultra -high precision manufacturing.

 

 

Our certificate

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FAQ
 

 

Q: What are the properties of mineral casting?

A: Casting. Mineral composite materials have become a substitute for traditional metals and natural stones due to their excellent shock absorption, high dimensional accuracy and shape integrity, low thermal conductivity and moisture absorption, excellent corrosion resistance and anti-magnetic properties.

Q: What is the most common cause of shrinkage voids within a casting?

A: As mentioned, the most common causes of shrinkage are related to the casting sprue and ingate location and size, which is the passage through which molten metal is poured into the investment casting mold.

Q: What is the difference between hot tear and crack?

A: There are two types of cracks that could occur during DC casting; hot tearing when the alloy is still in the semi solid state and cold cracking when the alloy is already in a fully solid. Cold cracking usually occurs when the alloy is in its brittle state, i.e. at a relatively low temperature [3].

Q: How do you avoid porosity in casting?

A: Improving the mold design can help prevent both gas and shrinkage porosity. The most common way of reducing the formation of pores is by maintaining the die casting wall thickness. Other ways to improve the mold design include: Change the thickness of the gate.

Q: How do you prevent hot tears in casting?

A: Method to prevent hot tears may improving the casting design, achieving directional solidification and even rate of cooling, selecting proper mold and materials to suit the cast metal, and controlling the mold hardness in relation to other components of sand.

Q: What is a pinhole defect in casting?

A: Appearance: Pinhole defects are a form of gas porosity. They are usually small, elongated holes (about 1/16 in. in diameter) at or immediately below the casting surface with the long axis of the pinhole perpendicular to the casting surface. The walls of pinholes in steel are often smooth and bright.

Q: How do you check for casting defects?

A: Casting defects can be tested through various methods such as visual inspection, non-destructive testing (e.g., ultrasonic testing, radiography, dye penetrant testing), and destructive testing (e.g., mechanical testing, metallurgical analysis) to identify and evaluate any flaws or irregularities in the casting.

Q: Is epoxy good for granite?

A: The answer is yes; epoxy can be applied to fix many types of stone surfaces. Epoxy resin is a popular and effective glue that bonds well with many different materials, including marble, granite, concrete, and more. If you want to repair your countertops, then epoxy will work great!

Q: What is the damping ratio of epoxy granite?

A: The composite shows high damping for granite-epoxy ratio 80:20. The tensile, flexural and impact strengths are found to be maximum for granite-epoxy ratio 50:50. Rockwell hardness test indicates highest hardness for granite-epoxy ratio 80:20.

Q: Is epoxy more durable than granite?

A: A well-maintained granite countertop can last you 100 years or longer, while epoxy countertops last 10 years or longer. With such a vast difference in the length of life, it may make sense to go with granite if your budget allows.

Q: How stiff is epoxy granite?

A: 12% Epoxy Resin Granite Damping ratio improved by 2.2 times and weight reduced by 38.64 % for same stiffness as compared cast iron bed. Tsung-Chia Chen et al. - - Dynamic stiffness of the granite model was 0.5–1.3 times higher than that of casting machine.

Q: How long does granite-epoxy take to dry?

A: Stone Coat countertop epoxy will dry to the touch nicely overnight, and be ready for light use in 72 hours. Your surface will continue to cure harder and harder over 30 days. Be nice to them during the curing process. We like to machine polish our tops 5 days after the last coat.

Q: What do you clean granite with before epoxy?

A: Granite: Try using a gentle sponge with a little soap and some warm water. Make sure you rinse/wipe off all the soap thoroughly afterward. Dry it off with paper towels or a lint-free microfiber cloth, but be sure to switch to a dry replacement frequently to avoid leaving behind fibers.

Q: Which of these are major problems that can occur in continuous casting?

A: A review on the causes of the foremost defects in continuous casting, based on an extensive literature survey, is given. The specific defects which are considered are transversal and longitudinal cracking, inclusions, sticking, bleeding, oscillation marks, stopmarks and depressions.

Q: What is mineral cast?

A: Mineral casting is also known as epoxy granite, granite composite, and polymer-bonded mineral casting. It's an alternative to parts made from grey cast iron or steel. Mineral casting is made from a combination of materials like cement, granite, and quartz sand. It has reinforcing fibers and nanoparticles.

Q: What is the best material for casts?

A: Casts for broken bones are commonly made of plaster or fiberglass. While plaster is supportive, it is bulky and heavy. Fiberglass is often preferred because it's lighter and can get wet.Standard Prince August casting metal. This is a Standard Metal (65% Lead / 2% Antimony / 33% Tin) and is the cheapest metal available. We recommend that you vent the moulds if you use Standard Metal. Standard metal melts at 210°C (410°F).

Q: What are the properties of mineral casting?

A: Casting. Mineral composite materials have become a substitute for traditional metals and natural stones due to their excellent shock absorption, high dimensional accuracy and shape integrity, low thermal conductivity and moisture absorption, excellent corrosion resistance and anti-magnetic properties.In the case of mineral cast, sustainability means 80 % raw materials of entirely natural origin like marble powder and quartz sand. Using the state-of-the-art findings of our own research and cutting-edge production technology, we then combine these natural ingredients with custom-made resins (polyester resin).

Q: Which rock is most dense?

A: The heaviest rocks would be those that are made up of dense, metallic minerals. Two of the heaviest or densest rocks are peridotite or gabbro. They each have a density of between 3.0 to 3.4 grams per cubic centimeter. Interestingly, peridotite are the rocksthat naturally occurring diamonds are found in.Sand casting is the oldest known casting process. It is also the most versatile and widely used metal casting method. Sand casting has the ability to produce highly-varied components with regards to shape, size, and complexity.

Q: How do I choose casting material?

A: For example, you might want to choose a material that has low melting point and high fluidity for a casting process that requires low temperature and high speed, or a material that has high viscosity and low shrinkage for a molding process that requires high pressure and precision.

Q: How much does epoxy granite cost?

A: 2024 Epoxy Countertops Cost: A Complete Price Guide | Angi For most homeowners, professionally installed epoxy countertops cost $50 to $150 per square foot. The price is dependent on the size of your countertop. For example, the average 35-square-foot epoxy kitchen countertop costs $1,750 to $5,250—but you'll pay much less for a single bathroom vanity. Countertop Size (Sq).

UNPARALLELED LTD is one of the most professional mineral casting manufacturers and suppliers in China, featured by advanced products and good service. Please rest assured to buy custom made mineral casting at competitive price from our factory.

Mineral Casting Components, epoxy granite milling machine, polymer concrete for cnc