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China Cheap price Shell Mold Casting Parts - Gray Cast Iron Shell Casting Product – RMC Foundry

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Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for Ductile Iron Lost Foam Casting Foundry , Alloy Steel Shell Casting , Precision Machining Services , At present, company name has more than 4000 kinds of products and gained good reputation and big shares on market domestic and overseas.
China Cheap price Shell Mold Casting Parts - Gray Cast Iron Shell Casting Product – RMC Foundry Detail:

China OEM custom gray cast iron shell mold casting products with CNC machining service.

Property Gray Cast Iron Melleable iron Ductile Iron C30 steel
Melt temperature, ℃ 1175 1200 1150 1450
Specific gravity, kg/m³ 6920 6920 6920 7750
Vibration damping Exellent Good Good Poor
Modulus of elasticity, MPa 126174 175126 173745 210290
Modolus of rigidiy, MPa 48955 70329 66190 78600

Shell molding casting process is also called pre-coated resin sand casting process, hot shell molding castings or core casting process. The main molding material is the pre-coated phenolic resin sand, which is more expensive than green sand and furan resin sand. Moreover, this sand can not be recycle used.

Furan resin self-hardening sand casting process (nobake process) uses the furan resin coated sand to form the casting mold. After mixing the original sand (or reclaimed sand), liquid furan resin and liquid catalyst evenly, and filling them into the core box (or sand box), and then tighten it to harden into a mold or mold in the core box (or sand box) at room temperature. Then the casting mould or casting core were formed, which is called self-hardening cold-core box molding (core), or self-hardening method (core).

Because the mold is formed at room temperature and no need to heat, the self-hardening sand casting is also called no-bake casting process. The self-hardening method can be divided into acid-catalyzed furan resin and phenolic resin sand self-hardening method, urethane resin sand self-hardening method and phenolic monoester self-hardening method.

As a self-hardening cold box binder sand, furan resin sand is the earliest and currently most widely used synthetic binder sand in Chinese foundry. The amount of resin added in molding sand is generally 0.7% to 1.0%, and the amount of added resin in core sand is generally 0.9% to 1.1%. The content of free aldehyde in furan resin is below 0.3%, and some factories have dropped to below 0.1%. In the foundries in China, the furan resin self-hardening sand has reached the international level regardless of the production process and the surface quality of the castings.

 

Resin Coated Sand Casting Metal and Alloys
Metal & Alloys Popular Grade
Gray Cast Iron GG10~GG40; GJL-100 ~ GJL-350;
Ductile (Nodular) Cast Iron GGG40 ~ GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2
Austempered Ductile Iron (ADI) EN-GJS-800-8, EN-GJS-1000-5, EN-GJS-1200-2
Carbon Steel C20, C25, C30, C45
Alloy Steel 20Mn, 45Mn, ZG20Cr, 40Cr,   20Mn5, 16CrMo4, 42CrMo,
40CrV, 20CrNiMo, GCr15, 9Mn2V
Stainless Steel Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic Stainless Steel, Precipitation Hardening Stainless Steel, Duplex Stainless Steel
Aluminium Alloys ASTM A356, ASTM A413,  ASTM A360
Brass / Copper-based Alloys C21000, C23000, C27000, C34500, C37710, C86500,  C87600, C87400, C87800,  C52100, C51100
Standard: ASTM, SAE, AISI, GOST, DIN, EN, ISO, and GB

 

The Advantages of Furan Resin Coated Sand Self-hardening Molding Casting:
1) Improve the dimensional accuracy of castings and the surface roughness.
2) The hardening of the mold (core) sand does not require drying, which can save energy, and inexpensive wood or plastic core boxes and templates can also be used.
3) Self-hardnening molding sand is easy to compact and collapse, easy to clean up castings, and old sand can be recycled and reused, which greatly reduces the labor intensity of core making, modeling, sand falling, cleaning and other links, and it is easy to realize mechanization or automation.
4) The mass fraction of resin in sand is only 0.8%~2.0%, and the comprehensive cost of raw materials is low.

Because the self-hardening method has many of the above-mentioned unique advantages, the self-hardening method is not only used for core making, but also used for casting moulding. It is especially suitable for single piece and small batch production, and can produce cast iron, cast steel and non-ferrous alloy castings. Some Chinese foundries have completely replaced clay dry sand molds, cement sand molds, and partially replaced water glass sand molds.

Resin Coated Sand Shell Casting Factory

custom shell mold casting product

Ductile Cast Iron Products

ductile iron casting products

Ductile Iron Casting Products


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We follow our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We aim to create much more worth for our buyers with our abundant resources, highly developed machinery, experienced workers and great providers for China Cheap price Shell Mold Casting Parts - Gray Cast Iron Shell Casting Product – RMC Foundry, The product will supply to all over the world, such as: Montreal , Afghanistan , Nigeria , The company attaches great importance to product quality and service quality, based on the business philosophy "good with people, genuine to whole world, your satisfaction is our pursuit". we design products, According to customer's sample and requirements, to meet the needs of the market and offer different customers with personalized service. Our company warmly welcomes friends at home and abroad to visit, to discuss cooperation and seek common development!
  • This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By EliecerJimenez from Mexico - 2017.08.15 12:36
    Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Hazel from Angola - 2017.02.28 14:19