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 .

Sand Casting Plant

Sand casting, the other name sand molded casting, is a kind of metal casting process with the feature that using sand as the mold material. It is widely used, and over 70% of all metal castings adopts the sand casting process.

Sand casting is relatively cheap and sufficiently refractory suitable for steel foundry. Besides the sand, a suitable bonding agent, such as clay, is usually mixed with the sand. The mixture is moistened, with water or sometimes other substances, to develop strength and plasticity of the clay so as to make it suitable for molding.

RUYI CASTING can offer the service of Green Sand Casting and No-Bake Resin Sand Casting. As a professional manufacturer of casting parts in China, we have the advantages of advanced casting machinery, professional staff and excellent service. Today, most of our products are exported to Canada, USA, Switzerland, Sweden and other European countries, from which we have received good feedback. Furthermore, if you have special requirement of the parts, please email us your design drawing to sales@ruyicasting.com .

Precision CNC Machining

Machining Facility We Have:
Vertical Milling Center
Horizontal machining center
Gantry milling machine
CNC Turning Machine
Vertical machining center with four axles

Numerical control (NC) refers to the automation of machine tools, which means machine tools are operated by precisely programmed commands encoded on a storage medium, instead of being controlled manually via hand wheels or levers, or mechanically automated via cams alone. Today, Most NC is computerized numerical control (CNC), and the computer plays an integral part of the control.

RUYI CASTING has introduced the most advanced precision CNC machinery, and in the precision CNC machining, parts can goes directly from the former machinery to the next machinery without manually control, which can save much time for completing the parts. Combined with the coordinate measuring machine, we can ensure to achieve the key dimensions you require. Otherwise, the customized design of parts can be acceptable, and if you have special requirements, please email us to sales@ruyicasting.com . We will give you fast response as soon as possible.

Ductile Cast Iron

Ductile cast iron, other name ductile iron, nodular cast iron, spheroidal graphite iron, spherulitic graphite cast iron and SG iron, is a type of cast iron widely used in casting parts. With its nodular graphite inclusions, ductile cast iron has much more impact and fatigue resistance, different from the most varieties of cast iron which are brittle.

Through control of the microstructure, ductile cast iron can be produced to have a wide range of properties. The most common usage of ductile cast iron is in the form of ductile iron pipe, such as the hydraulic parts, which is heavier than the polymeric materials such as PVC, HDPE, LDPE and polypropylene, but requires less careful installation and protection from physical damage. Besides, ductile cast iron is specifically suitable for making many automotive components, where strength needs surpass that of aluminum but do not necessarily surpass steel. Other major industrial applications include off-highway diesel trucks, agricultural tractors, and oil well pumps and valves.

RUYI CASTING has professional ductile iron casting plant, where we have advanced machinery and operator. All of our products will be checked by our strict QC system, and if you have special requirement, please feel free to email us to sales@ruyicasting.com .

Grey Iron Casting Plant

RUYI CASTING has professional grey iron casting plant, which can offer you high-quality grey iron casting parts. And our professional workers as well as strict QC team members will ensure that any item we export is durable and reliable.

Gray cast iron is widely used in industry, and it has many advantages as following:
1.Good shock absorption; the pedestal, frame and other parts of machinery and equipment made by gray cast iron can effectively absorb vibration energy of machine.
2.Good lubrication performance.
3.Good thermal conductivity, which is due to the fact that graphite is a good conductor of the heat.
4.Convenient melting as well as good casting performance.
5.The good fluidity. Linear shrinkage and shrinkage rate of grey iron casting is small, so casting is not easy to crack, which makes it suitable for parts with the complex structure.

Contact our grey iron casting plant, you can email to sales@ruyicasting.com .
 

Metal Casting

Casting is one of the industrial basic technology in modern mechanical manufacturing, and metal casting is a kind of common casting process. Metal casting is to melt the metal into liquid meeting certain requirements and pour it into the mold, and then after the the cooling, cleaning treatment, we can get casting parts with predetermined shape, size and performance.

For the metal casting, the most important thing is the mold preparation; that is to prepare the metal container which makes metal liquid become solid casting. For mold making, RUYI CASTING has complete in-house capabilities, including computer aided design and manufacturing systems, CNC machining centers, coordinate measuring machine and all axiliary required for accurate machining. Our company has complete casting processing and inspection system, which can complete the process of clearing core and the foreign body on the casting surface, removing the riser, and shoveling and grinding the burrs, as well as heat treatment, shaping, rust and rough machining etc..

Metal casting blanks is almost complete forming to free machining or a small amount of processing, so it can reduce the cost and reduce the time in a certain extent. For more details, please email to sales@ruyicasting.com .

Iron Castings

Place of Origin: Zhejiang, China (Mainland)
Brand Name: RUYI
Model Number: RY-500
Material: QT500
Weight: 5-200kgs
Process1: Green Sand Casting
Process2: No-Bake Resin Sand Casting
Process3: Shell Mold Casting
Machining: CNC, ordinary machine tools
Application: auto parts,valve,gear housing,heavy machinery, construction

RUYI CASTING is specialized in iron casting for more than ten years from 2004, and now we mainly focus on Ductile Iron Casting and Grey Iron Casting. Pursuing high quality and precision of our products, we have introduced many advanced machinery to complete and aid our process of mold design and parts machining, such as the four axles vertical milling centers, horizontal milling centers, and coordinate measuring machine, which makes it easy and fast for production and makes sure that we are able to achieve key dimensions you require. And if you are interested in more details about our company and products, you can email to us to sales@ruyicasting.com.

FENGHUA RUYI FOUNDRY CO., LTD.

FENGHUA RUYI FOUNDRY CO., LTD. was established as a traditional foundry with Cupola smelting in 2004. Over 10 years efforts from all RUYI staffs and support from customers lead us into a rapid with steady growth. In 2014, according to the new environmental policy from the government and our management vision, our company’s big improvement has begun.

There are new induction furnaces and several imported automatic machines have been introduced in our new plant. The new induction furnaces hugely solve the environmental restriction and temperature control accuracy. New equipments such as SPECTROMAXX spectrometer helps us improve products quality control and inspection speed. The new flask less molding machine significantly improves our capacity to over 100 moulds per hour or 10,000 tons per year and also high accuracy from its automation system. Moreover, the sand preparation system with Europe technology can provide us high and stable molding sand. To summarize, our new plants and current professional staffs can provide very high quality casting products and services for customers worldwide.

Furthermore, RUYI also owns a machining plant with over 9 NC and CNC machining centers. The one-stop service from molding design and casting production to precision machining is a current practice which brought us a satisfaction and trust so far from our customer worldwide. Most of our products are exported to Canada, USA, Switzerland, Sweden and other European countries.