How to make tungsten carbide rods

Tungsten carbide is a kind of hard alloy with high hardness and stable performance. So what are the characteristics of hard alloy bars made of hard alloy? How exactly is a hard alloy made into a tungsten carbide bar?

What is carbide rod?

cemented carbide rod with one straight hole 2 1

Carbide bar is the carbide round bar, also called tungsten carbide hollow rod, which is simply the tungsten steel round bar or carbide round bar. Cemented carbide is a kind of composite material produced by powder metallurgy, which is composed of refractory metal compound (hard phase) and bonding metal (bonding phase).

Cemented carbide (WC) is an inorganic compound that contains equal amounts of tungsten and carbon atoms. In its most basic form, it is a subtle gray powder, but it can be used in industrial machinery, tools, abrasives, and shapes used. The carbon content of cemented carbide is three times that of steel, and the crystal structure is denser than steel and titanium. Its hardness is comparable to diamond, and it can only be polished into a cemented carbide and polished with cubic boron nitride abrasives. Cemented carbide rod is a new technology and new material. Mainly used in the manufacture of metal cutting tools, wood, plastics and other industries that require hardness and wear resistance and corrosion resistance.

How to make tungsten carbide rod?

With the continuous progress of today’s science and technology, the demand for cemented tungsten carbide rods is also increasing. The important step in making cemented carbide rods is extrusion. The task of extrusion is to pour the dried mixture of a certain grade and a certain proportion of molding plasticizer into a double-screw mixer, and repeat the rolling stirring and mixing within a specified time. After 2.5 hours to 3.0 hours of rolling milling, the plasticized mixed billet is made into uniform spheres, and then the material is discharged and the mold is pre-extruded. The round rod blanks of various required specifications are slowly extruded under high pressure. Then use the polishing tool to polish the blank, make it smooth, and finally shape.

How to choose carbide round rods

1. When buying a cemented carbide rod, you must know its alloy grade, that is, the physical performance parameters of the cemented carbide rod. This is very important!

2. When you buy tungsten carbide rods, check their dimensions. The precise dimensions of cemented tungsten carbide rods can reduce a lot of your deep processing time, thereby improving your production efficiency and reducing your processing costs.

3. When purchasing cemented carbide round rods, pay attention to the flatness, symmetry and other geometric tolerances of the inspection plane. The cemented carbide round rods with high geometric tolerance precision can produce higher quality products and much simpler processing.

Application range of cemented carbide rods

Cemented tungsten carbide rods have the characteristics of high red hardness, good weldability, high hardness and high wear resistance. They are mainly used in the manufacture and processing of solid wood, density boards, and gray cast iron. Non-ferrous metal materials, chilled cast iron, hardened steel, PCB, brake materials. Carbide rod of suitable material should be selected according to the application in detail. Cemented tungsten carbide rods have excellent durability, high hardness, good wear resistance, high elastic modulus, high compressive strength, and good chemical stability (acid, alkali, high temperature oxidation resistance).

With the progress of industrial technology, the production of cemented carbide round rod is becoming more and more mechanized and simplified, and the application of cemented carbide rod in the future will be further expanded to provide convenience for industrial development.


JAT Carbide not only provide high quality carbide rods, but also cermet rods, available in unground and ground for your choice. Welcome to cantact us and inquiry now.

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