Product Specifications
|
Parameter |
Value |
|
Applicable Materials |
Carbon steel, alloy steel, stainless steel, cast iron, aluminum alloy |
|
Weight Range |
1-600kg |
|
Minimum Wall Thickness |
≥6mm |
|
Dimensional Tolerance Standard |
CT7-CT10 |
|
Surface Roughness |
Ra12.5-25μm |
|
Process Features |
No parting line, foam pattern vaporization, dry sand vacuum pouring |
|
Inspection Standard |
UT Level 2, MT as required by drawing |
|
Typical Applications |
Pump and valve housings, construction machinery parts, frames, agricultural castings, complex structural parts |
Complex Shapes with No Parting Lines
Lost foam casting is a special process we offer for complex parts. Unlike traditional sand casting, this method uses a foam pattern. The foam is coated and placed in dry sand with vacuum applied. When we pour the metal, the foam vaporizes and the metal fills the cavity. The biggest advantage is that there is no parting line. This allows us to cast parts with complex internal passages and irregular shapes. Typical applications include pump bodies, valve housings, agricultural parts, and frame structures. If you have a design that is difficult to cast with other methods, lost foam is worth considering.
-
Materials and Size Range
We can use lost foam casting for carbon steel, alloy steel, stainless steel, cast iron, and aluminum alloy. The weight range is 1 to 600 kilograms. The minimum wall thickness is 6 millimeters. The dimensional tolerance is CT7 to CT10. The surface roughness is Ra12.5 to 25 micrometers. Because there is no draft angle requirement, you can design the part in any shape. You do not have to compromise your design for mold release. This gives you more freedom in your engineering.
-
Process Experience and Quality Control
We have accumulated many years of experience in lost foam casting. The process requires careful control of the foam pattern and the coating application. We have our own pattern-making capability and a dedicated lost foam production line. The dry sand vacuum process gives better surface quality and dimensional accuracy than ordinary sand casting. Flash and burrs are minimal. This means less finishing work for you. Our heat treatment shop has car-bottom resistance furnaces. We can do annealing, normalizing, or quenching and tempering to relieve internal stress and improve mechanical properties.
Testing and Documentation
We do spectral analysis and mechanical property testing for every batch. Important areas get UT inspection. All test reports come with the shipment. We ensure traceability for all quality data. You will have the documentation you need to verify the casting quality. We support third-party inspection at our factory. This is a standard part of our process, not an exception.
Hot Tags: lost foam method, China lost foam method manufacturers, suppliers, factory
