Sinoway offers shell molding process production and shell mold casting products.
Shell molding was developed as a manufacturing process during the mid-20th century in Germany. And shell mold casting is a metal casting process similar to sand casting but using sand-resin mixture as molds, and the molds are expendable.
Sinoway has developed the shell mold casting process for more than ten years. We can improve metal casting products with more accurate dimensions and smoother surfaces by applying shell mold casting instead of the sand casting process. As a metal casting service supplier, we equipped the foundry with advanced testing instruments such as molten metal analyzers, spectrometers, and metallographic microscopes to guarantee the casting metal’s grade and mechanical properties.
And we usually apply the shell mold casting process to manufacture the small-to-medium-size parts. The casting materials include different cast irons, carbon steel, alloyed steel, stainless steel, and other metal alloys. Meanwhile, we have our own CNC machining workshop, where we can make the metal pattern molding and the after-casting machining of the casting blanks to meet the customers’ one-stop requirements.
If you have a metal part that needs to be customized, either for prototype or mass production, contact us now and immediately enjoy our services.
What is a shell mold casting process?
The shell mold casting process is a relatively new casting technology, and it developed as an industrial manufacturing process during the mid 20th century in Germany. We can also call it shell molding because a disposable sand-resin-mixed shell is made by a set of metal molds during the process. And we can pour the molten metal directly into the sand-resin shells to cast out the desired workpieces.
The molten metals applied for the shell mold casting process include cast iron, carbon steels, alloyed steels, stainless steels, copper alloys, and aluminum alloys. Large-sized parts do not apply to this process because of the metal patterns, while shell molding suits small-to-medium-sized metal parts that required higher accuracy and smoother surfaces.
There are several procedures involved in the shell mold casting process.
1. Pattern making
Design and create the metal patterns(a metal die) via machining process
2.Shell make
Inject the sand-resin mixed materials into the preheated pattern-dies to form the shells on the automatic shell molding machine and keep heating to harden them
3. Shells assembly
Stack up the single shells to make a casting mold with fixtures
4. Casting
Melt the applied metals and pour the molten metal into the shells
5. Castings divesting
Knock off the shells and separate the castings, and then cut off the workpieces and grind them to remove the cutting residues
Advantages of the shell mold casting process include
- High accuracy of the dimensions
- Good casting surface finishes
- High production rate
- low labor cost with automatic production equipment
- Suitable for products with complex shapes and structures
Why Choose Sinoway for your metal casting project?
Based on more than 20 years of practice, and overall technical support from our rich-experienced engineering team, Sinoway can supply customers with the most optimal solution to choose the right casting process and material, which expects to save 10% cost for their project. Meanwhile, due to our service team’s quick response, we are always there whenever you need us, saving time for both of us.
Benefits of Sinoway cast foundry include:
1. Our production facilities have automated shell materials injecting machines, electric induction furnaces up to 2T, and testing instruments including molten iron chemical composition analyzer and spectrometer, and metallographic microscopes.
2. Sinoway can manufacture castings made of all kinds of metal alloys. We can meet all your requirements for prototyping and mass production.
3. A technology supporting team that includes both hands-on production engineers coming from the workshop and professional design engineers from modern universities;
4. In addition to the shell molding production lines, Sinoway also has other casting processes, including sand casting, lost wax investment casting, lost foam sand casting, and die casting. And Sinoway also supplies other metal part production lines such as sheet metal stamping, drop forging, CNC machining, Welding, and surface treatment to meet customers’ demands for one-stop service of manufacturing the whole set of their products.
Quality control policy
Sinoway has established our quality management policy strictly following the ISO 9001 standard in the casting foundry. We require every step of the order execution to be managed and controlled according to this policy to provide customers consistent quality products and services.
Our quality management policy includes the following aspects.
- Molten metal composition analysis before each casting procedure;
- Sample quality inspection, including dimensions, chemical composition, and mechanical properties;
- Mass production casting procedure monitoring;
- Quality inspection after mass production;
- Packaging and transportation inspection;
- All tests must have traceable inspection reports on file.
Win-Win Cooperation
With our specialty in metal parts production, we have been serving many customers engaged in different industries like Home Appliances, Construction, Automobiles, Heavy Equipment, etc.
