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.