How does tungsten carbide material made?
In the field of tungsten carbide, there are some different moulding processes. Such as mould pressing, Extrusion mould and Injection moulding.
Here we’d like to introduce these three different moldings
1. Mould pressing
· Process: tungsten carbide components are pressed into a specific shape using a mold under high pressure. This process is typically used for manufacturing complex shapes, difficult parts, and tools. Such as cemented carbide strip or plate, tungsten carbide nozzles, carbide tips, carbide button, cemented carbide seal rings, carbide bushing or carbide sleeves, carbide ball, carbide jars or cups, carbide seat and valves, tungsten carbide knife,
· Explanation:
"Pressing is a basic cemented technique for shaping. It involves compacting the powdered material into a desired form using a mold under high pressure. Each shape need to have a mold"
· Advantages: High dimensional accuracy, different shapes possible, cost-effective for large volumes
· Disadvantages: Limited to simpler drawings, may require additional sintering steps
· Photos:
2. Extrusion
· Process: A heated hard metal powder preform is forced through a die to produce a continuous, elongated shape, such as cemented carbide rod or carbide tube.
· Explanation:
"Extrusion is used to create long, consistent hard metal shapes like rods or tubes. The powdered material is heated and forced through the extrusion mold
· Advantages: Excellent dimensional control, can produce long and thin parts
· Disadvantages: Limited to simple shapes, requires specialized tooling
· Photos:
3. Injection Molding
· Process: A mixture of cemented carbide powder and a binder is heated and injected into a mold, where it solidifies. The binder is then removed through a process like debinding and sintering.
· Explanation:
"Injection molding allows for the production of complex carbide parts. A mixture of powder and binder is injected into a mold, and the binder is removed in subsequent steps to form the final hard metal component."
· Advantages: High detail possible, complicated drawings, automation-friendly
· Disadvantages: Higher tooling costs, binder removal and sintering processes can be complex
· Photos: 
