Manufacturing Process Of Cemented Carbide Products

First Step

The main raw material is tungsten carbide powder, in order to keep the product stable, we funded 20,000,000.00 USD and imported the carbide powder manufacture equipment in 2010.

 

Electric heating rotary calcination furnace
Electric heating rotary calcination furnace

 

Tungsten carbide powder is produced by APT, and burning in Electric heating rotary calcination furnace, and then comes into being Blue tungsten oxide

 

tungsten carbide powder
Blue tungsten oxide

 

Second step

 

Automatic-propelling-deacidizing-furnace
Automatic propelling deoxidizing furnace

 

Blue tungsten powder through burning and then producing the tungsten powder.

 

Tungsten powder after burning
Tungsten powder after burning

 

Third step:

The tungsten powder is screened by a vibrating screen.

 

 

Four step

Through the Air classification equipment, tungsten powder is classified into different granularity

 

Air classification equipment
Air classification equipment

 

Fifth Step:

Tungsten powder in a certain proportion, adding carbon black and other additives after ball milling and mixing.

 

Ball grinder with the addition of carbon
Ball grinder with the addition of carbon

 

Sixth Step:

The tungsten powder with good carbon black is added to the intermediate frequency carbonization furnace.

 

Intermediate frequency carbonization furnace
Intermediate frequency carbonization furnace

 

Seventh step:

In the end, the WC powder was milled by the ball milling machine, and the high-quality tungsten carbide powder was produced.

 

ball milling machine WC powder

 

Tungsten carbide particles under high power scanning electron microscope.

 

Tungsten carbide particles
Tungsten carbide particles under high power scanning electron microscope.

 

Eighth Step:

The WC powder, cobalt powder, and other rare elements are formulated in good proportion.

 

Weighing-ratio
Weighing ratio

 

Ninth Step:

Will be equipped with a good raw material to join the ball mill through the 24 hours of wet grinding, and mixed into the forming powder, so that the powder is fully mixed.

 

Ball grinder
Ball grinder

 

Tenth Step:

Put the wet grinding mixture into the spray drying tower

 

Spray drying tower
Spray drying tower

 

11th Step:

Compression molding will be prepared and put the powder into the mold, press molding with a hydraulic press;

 

hydraulic Compression hydraulic Compression

 

12th Step:

Put the Roughcast into the furnace and burning into the rough cast

 

Low pressure dewaxing sintering furnace
Low-pressure dewaxing sintering furnace
10Mpa Dewaxing sintering furnace
10Mpa Dewaxing sintering furnace
Germany PVATePla
Germany PVATePla

 

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