Strength
The ability of the sand mold to hold its geometric shape under the conditions of mechanical stress.
Permeability
The ability of a sand mold to permit the escape of gases and steam during the casting process.
Moisture Content
Moisture content affects a mold’s strength and permeability: a mold with too little moisture may break apart, while a mold with too much moisture can cause steam bubbles to be entrapped in the casting.
Flowability
The capacity of the sand to fill small cavities in the pattern. High flowability creates a more precise mold, and is therefore useful for detailed castings.
Product Description
MOLDING SAND CASTING PROPERTIES
Strength
The ability of the sand mold to hold its geometric shape under the conditions of mechanical stress.
Permeability
The ability of a sand mold to permit the escape of gases and steam during the casting process.
Moisture Content
Moisture content affects a mold’s strength and permeability: a mold with too little moisture may break apart, while a mold with too much moisture can cause steam bubbles to be entrapped in the casting.
Flowability
The capacity of the sand to fill small cavities in the pattern. High flowability creates a more precise mold, and is therefore useful for detailed castings.
Grain Size
The size of the individual particles of sand.
Grain Shape
This property evaluates the shape of the individual grains of sand based on how round they are. Generally, three grain categories are used in foundry sand:
Rounded Grain sands provide relatively poor bonding strength, but good flowability and surface finish.
Angular Grains have greater bonding strength because of interlocking, but poorer flowability and permeability than rounded grain sands.
Sub-angular Grains are the middle road. They possess better strength and lower permeability relative to rounded grains, but lower strength and better permeability than angular grains.
Collapsibility
The ability of the sand mixture to collapse under force. Greater mold collapsibility allows the metal casting to shrink freely as it solidifies, without the risk of hot tearing or cracking.
Refractory Strength
The mold must not melt, burn, or crack as molten metal is poured into it. Refractory strength measures the ability of molding sand to withstand extreme heat.
Reusability
The ability of molding sand to be reused (after sand conditioning) to produce other sand castings in subsequent manufacturing operations.
Materials: Carbon steels, alloy steels, stainless steels, Ductile iron, Gray iron, high chromium iron, high Mn steel
1) We can do different kinds of surface treatment after casting, such as machining, polishing, and plating
2) We make them by precision casting, investment casting and steel sand casting process in Ningbo, China
3) They are using for Auto machine and others
4) Machine parts (machining parts or machinery parts), matelwork (metal products) and stamping parts.
5. Export Markets: Australia Investment casting, America, United States. U.S.A.Investment
Casting, Canada Investment casting; U.K.England, Britain Investment casting, Germany
Investment casting, France Investment casting; Italy Investment casting, Espana, Spain
Investment casting, Holand Investment casting, South Africa Investment casting; Danmark
Investment casting; Sweden Investment casting; Finland Investment casting; Belgium
Investment casting; Rumania Investment casting; Russia Investment casting; Brazil
Investment casting; Argentina Investment casting.
6. Supplier: China Ningbo Investment Casting Factory; China Ningbo Investment Casting Company; China Ningbo Investment Casting Co., Ltd; China Ningbo Investment Casting inc; China Ningbo Investment Casting Corporation; China Ningbo Investment Casting Manufacturer; China Ningbo Investment Casting Supplier; China Ningbo Investment casting part; China Ningbo Investment casting foundry...
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PROCESS |
MATERIAL |
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SAND CASTING |
Green Sand |
Grey Iron, Ductile Iron, Malleable Iron, Stanless Steel, Carbon, Steel, Aluminium, Brass, Bronze |
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Furan Resin Sand |
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Cold Harden Resin Sand |
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INVESTMENT CASTING |
Sodium Silicone (Water glass) |
Stainless Steel, Carbon Steel, Special Alloy Steel Bronze, Brass, Aluminum |
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Silica Sol |
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FORGING |
Hammer Forging |
Stainless Steel, Carbon Steel, Alloy Streel, Brass, Aluminum |
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Die Forging |
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Roll Forging |
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STAMPING MACHINING |
STAMPING MACHINING |
All metal material |
Ningbo Hansheng Machinery Parts Co., Ltd. (Ningbo Yifei Machinery Parts Co., Ltd.) founded in 2006, is an enterprise focusing on the R&D, manufacturing and customization of non-standard bearings, high-precision bearings (import substitution) and bearing accessories and mechanical parts. With more than 30 years of technical design experience, FTM has earned an excellent reputation in the field of high-quality bearings. Our professional technical team provides domestic and foreign customers with high-quality bearing solutions in engineering machinery, textile machinery and other fields.
As China Forged Threaded Flange for Pipe Manufacturers and Forged Threaded Flange for Pipe Factory, relying on years of professional manufacturing and technical skills, FTM actively introduces advanced CNC machine tools from Japan to ensure product processing accuracy and stability. In addition, FTM bearing product research is guided by a doctor of tribology. We adhere to the corporate philosophy of innovation and development, and our products are exported to many countries and regions around the world. We have long been supporting and producing various types of bearings for many world-renowned companies, maintaining good production relationships. Rotate forever, inherit excellence, and create the future together. Choose FTM, and we will be your best choice for bearing solutions.
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