information about Spheroidal Graphite Iron Casting

Spheroidal Graphite Iron Details:
Place of Origin: Zhejiang, China (Mainland)
Casting: graphite cast iron
Material: iron
Dimensions: as customer's need
Service: OEM service
Surface Treatment: as required
Application: Metal parts, Mechanical parts, Marine Hardware, Electric power fitting, Construction parts, Pipe Fitting, Hardware, Auto parts, Valve parts, Industrial parts, Agricultural machinery, Hinges, etc.

Introduction of Spheroidal Graphite Iron:
Due to the graphite occurs as spheroids rather than as individual flakes as in gray iron, that an unusual combination of properties is obtained in ductile iron. Ductile iron also called nodular iron or spheroidal graphite iron. The high C and Si content of ductile iron provide the casting process advantages. The different grades are produced by controlling the matrix structure around the graphite either as-cast or by subsequent heat treatment.

Our Company:
Fenghua Ruyi Casting Co.,Ltd. as a traditional foundry, supply Ductile Iron Casting, Grey Iron Casting, Green Sand Casting, No-Bake Resin Sand Casting, Shell Mold Casting, etc. We can provide product precision machining services to the customers by using professional production lines & advanced equipment at home and abroad.
Our company can supply various casting parts (OEM) according to the customers’ drawings and requirements. We will supply you not only the products with good quality but also competitive price. Our moulds can produce more than one casting once,as your special mould-making process can make your wanted products in one pattern, which can save your time and money.

Welcome to do business with us.
Tel: +86-574-88931587
Email: sales@ruyicasting.com

This blog is published by China Spheroidal Graphite Iron manufacturer FENGHUA RUYI FOUNDRY CO., LTD.

Brief introduction of green casting

Green casting as the name suggests is energy-saving environmental protection type casting.Energy saving and environmental protection is the key to the implementation of the Green Foundry Casting Production and realize sustainable development.We must study and promote energy saving, environmental protection and new equipment base on Chinese national conditions.

To enter the "Twelfth Five Year" period, to advocate the green low-carbon has become the trend of the development of the foundry industry, while the "green low-carbon" has become an irresistible trend of the world, China has put "green, low-carbon, sustainable development" as the national strategy and basic national policy.

To enter the "Twelfth Five Year" period, to advocate the green low-carbon has become the trend of the development of the foundry industry, while the "green low-carbon" has become an irresistible trend of the world, China has put "green, low-carbon, sustainable development" as the national strategy and basic national policy.As an enterprise, it is imperative to take "low investment, high yield, low consumption, low emission, energy recycling, sustainable" green development.

green casting

Measures of green casting
1.Focus on melting and heating equipment, fully tap the energy potential, using the new technology to eliminate the pollution of the environment, improve the quality of smelting;
2.Save material, recycling, and optimize the design and optimize the process to improve the production rate of the casting
3.From the materials, processes, equipment, and solve the problem of environmental pollution. Development of nontoxic refining, modification technology, non-toxic and tasteless adhesive and white casting powder and dust removal technology, sand regeneration technology, no dust casting technology.
4.The high compaction moulding machine and modern system of core technology, strengthen the mechanization and automation of the production process, reduce the machining allowance, improve the management level.To save material resources, to develop the recycling technology of materials, recycling of waste, and to create the highest value.

This blog is published by china green casting manufacturer TBC Bearing.

Brief introduction of nodular cast iron

Nodular cast iron is a kind of high strength cast iron material developed in the fifty "s in twentieth Century. Its comprehensive performance is close to that of steel.Based on its excellent performance, it has been successfully used in the casting of some parts with complex strength, toughness and wear resistance.Nodular cast iron has been rapidly developed as a very wide range of cast iron.

Nodular graphite cast iron is obtained by the ball and inoculation process. It can improve the mechanical properties of the cast iron, especially improve the ductility and toughness.

Nodular cast iron

Cast iron is containing carbon content greater than 2.11 percent of iron carbon alloy, produced by high temperature melting and casting industrial pig iron, scrap steel, iron, steel and alloy material. Except for Fe, containing and other cast iron carbon graphite morphology of the precipitated, if the precipitation of graphite is a sheet of iron called grey cast iron, flocculent iron called white cast iron , and spherical cast iron is called nodular cast iron.

The chemical composition of ductile iron in addition to iron is usually as follows: 3 to 4% carbon content, containing silicon content of 1.8 to 3.2%, with manganese, phosphorus, sulfur content less than 3% and the amount of rare earth, magnesium, etc..


This blog is  published by the nodular cast iron manufacturer RUYI FOUNDRY CO., LTD.

Properties of gray cast iron

The mechanical properties of gray cast iron are related to the microstructure of matrix and graphite.

Serious flake graphite in gray cast iron matrix of the fragmented, easy cause stress concentration in graphite in pointed, leading to the tensile strength of gray cast iron, making the plasticity and toughness much lower than that of steel, but the compressive strength is same to the steel, is also commonly used in cast iron parts in mechanical properties of the cast iron.At the same time, the matrix structure of gray cast iron has a certain effect on the mechanical properties, the ferrite matrix gray cast iron graphite sheet is thick, the strength and the hardness is lowest, so the application is less; The graphite sheet of the pearlite matrix gray cast iron is small, and has high strength and hardness, which is mainly used to manufacture more important grey iron casting; The graphite sheet of a pearlite matrix gray cast iron is slightly thick, and the performance is not as good as the pearlite gray cast iron. Therefore, the industrial use of the pearlite matrix of gray iron. Gray cast iron has good casting properties, good vibration reduction, good abrasion resistance, good cutting performance and low notch sensitivity.

This blog is  published by the grey iron casting manufacturer RUYI FOUNDRY CO., LTD.

Grey Cast Iron

Grey cast iron, or gray iron, is a type of cast iron with a graphitic microstructure. And its name comes from the gray color of the fracture it forms, and this is because of the presence of graphite. Now, grey cast iron is the most common cast iron based on weight.

Grey cast iron is widely used for casting parts, for which the the stiffness of the component is more important than its tensile strength, such as, valve bodies, pump housings, internal combustion engine cylinder blocks, electrical boxes, and decorative castings. With the high thermal conductivity and specific heat capacity, grey cast iron is often exploited to make cast iron cookware and disc brake rotors.

RUYI CASTING can offer the professional service of grey iron casting. Our advanced casting machining plant with over 9 NC and CNC machining centers can ensure the effectively and precision production. And now the one-stop service from molding design and casting production to precision machining has brought us a satisfaction and trust from our customer, who are mainly from Canada, USA, Switzerland, Sweden and other European countries. If you want to join them, please email us to sales@ruyicasting.com .

Green Sand Casting Process

These expendable molds used to make the mold's shape in green sand casting process are made of wet sands, which is not a type of green color sand, but a mixture in the sense that it is used in a wet state, akin to green wood. The wet sands usually contains:
silica sand , chromite sand, zircon sand, olivine, staurolite, or graphite;
clay;
water;
inert sludge;
Anthracite.

In green sand casting process, the sands for non-ferrous metals does not use coal additives, because the CO created is not effective to prevent oxidation. Green sand for aluminum typically uses olivine sand, which is a mixture of the minerals forsterite and fayalite. Furthermore, the choice of sand can make a difference on the temperature that the metal is poured.

Ruyi Casting owns a advanced automatic moulding line, which is exactly suitable for such green sand casting process. Our advanced moulding machine as well as the stable sand preparation system can guarantee the high efficiency production and stable quality. And now we have built good relationships with customers from Canada, USA, Switzerland, Sweden and other European countries. If you have the interest in our service, please email us to sales@ruyicasting.com .

Shell Molding Process

Introduction:

Shell molding is similar to sand casting, but there is something different. In the process of sand casting, the molding cavity is a flask filled with sand, but in that of shell molding process, the molding cavity is formed by a hardened "shell" of sand instead. The sand used in shell molding process is finer than that in sand casting process, and it is mixed with a resin so that it can be heated by the pattern and hardened into a shell around the pattern.

Advantages:

Due to the resin and finer sand, shell molding process gives a much finer surface finish.
This kind of casting process is easily automated and more precise.
Common metals can be used, including cast iron, aluminum, magnesium, copper alloys,etc.
Shell molding process is exactly suitable for complex items which are small or medium-sized.
Shell molding process offers better dimensional tolerances
Shell Molding Process offers higher throughput due to reduced cycle times.

Why choose us:

With more than 10 years development, RUYI CASTING has become a professional manufacturer of shell molding parts used for autos. Our advanced machinery and technology as well as professional staff will give you the excellent service. If you have interest in our service, please email us to sales@ruyicasting.com .