Stainless Steel Lost Wax Precision Casting Railway Parts
Product Details
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Material
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Carbon Steel, Stainless Steel,Alloy Steel, Iron, Copper, Aluminum
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Surface Treatment
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Painting, Galvanized, Dacromet,Powder Coating, Polishing,etc.
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Application
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Mechanical Components/parts,Boat parts and Marine hardware,Construction hardware,Auto parts and accessories,Medical Instrument
parts,pump & valve parts and accessories,Impellers and propellers(propellors),Pipe Fittings or pipeline accessories,Other industry
metal casting parts
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Tolerances
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Customers' drawing request
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Standard
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AISI,ATSM,UNI,BS,DIN,JIS,GB etc
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Service
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OEM/ODM
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Heat Treatment
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Annealing,Normalizing,Homogenization Treatment ,Quenching, Tempering,Stabilizing, etc.
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Process
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Mold design→Wax injection→Assembly tree→Shell making→Dewax→Casting→Knockout→Cut off→Grinding→Inspection and post
treatment→Finished casting
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Design
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Various type of 2D or 3D drawings are acceptable, such as JPG,PDF,DWG,,IGS,STP,STEP etc.
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Quality Control
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Dimension inspection,Chemical composition analysis (Spectrum analysis),Mechanical property testing,X-Ray inspection,Dye penetrant
inspection,Magnetic powder inspection,Metallographic inspections
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Production Process
-Mold design
According to customers’ drawing, our engineer will finish the mold design.And then make the mould according to the design.
-Wax injection
The wax is being injected by the machine. Wax design of the desired castings is produced by injection molding.
-Assembly tree
The patterns are attached to a central wax stick, to form a casting cluster or assembly tree.
-Shell making
The shell is built by immersing the assembly in a liquid ceramic slurry and then into a bed of extremely fine sand. Up to 6 layers may be applied in this manner. The shell will be dry in each layer making.
-Dewaxing
Once the ceramic is dry, then heating. The wax will be melted out. The melted wax will be flow out from the shell.
-Casting
In the conventional process, the shell is filled with molten metal by gravity pouring. As the metal cools, the parts and gates,
sprue, and pouring cup become solid casting.
-Knock-out
When the metal has cooled and solidified, the ceramic shell will be broken off by vibration or a knock-out machine.
-Cut off
The parts are cut away from the central spruce using a high-speed friction saw.
-Grinding
After the casting was cut off. The casting pouring part will be ground carefully.
-Inspection and post treatment
The casting will be inspected by the inspector as per the drawing and quality request. If there are unqualified parts. It will be repaired and inspected again.
-Finished casting
After surface finishing operations, the metal castings become identical to the original wax patterns.
-Machining
The casting blank will be machined by CNC according to customers’ drawings.
-Testing
The finished parts will be tested by the professional inspection engineer.
-Packing
The qualified parts will be packed according to customers’ request.
About Us
Sunrise Foundry is a professional Metal Foundry, located in Ningbo. We have been producing Gray Iron,
Ductile Iron Castings and and any other precision castings for more than 25 years.
We are dedicated to meet different requirements of various customers across the world, products are mainly
involved Agricultural and Construction Machinery, Hydraulic, Mining industry, Municipal Products, some steel
and stainless steel castings for Pumps and Valves, Pipe Fittings, etc.
Please feel free to contact us if you have any requests.
Quality Control
FAQ
Q: Are you a factory or trading company?
A:We're a direct factory,we have our own casting foundry and machining factory over 30 years.
Q: Do you make customized products based on our design drawings?
A: Yes, we are a professional metal fabrication factory with 20 experiences to make custom products according to clients' drawings.
Q: Will my drawing be safe after you get it?
A: Yes, we will not release your design to third party unless with your permission.
Q: What is the MOQ?
A: Usually we don't set MOQ, but the more, the cheaper. Besides, we are happy to make prototype or sample for clients to ensure quality standard.
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