The purpose of mixing processes is to bond a variety of carbides and metal powder prepared according to a different Alloy composition, a mixed powder with uniform particle size , the main means of milling .

WC-Co, WC-TiC-Co cemented carbide production mix drying process

Vibration Drying: vibrating a vibration dryer eccentric shaft driven by a motor which generates the vibration frequency of 1400 times / min, the amplitude of 5 ~ 10mm.

Vacuum drying : vacuum drying carbide mixture drying process more 

advanced methods , currently used devices are more extensive bi-cone vacuum dryer .Like this:

WC-Co, WC-TiC-Co cemented carbide production mix mixed plastic ( wax ) - pelleting process

Good mix mixture before the incorporation of some of the organic compounds to suppress , the purpose of the powder mixture 6 is to improve the binding between the state so that the mixture has good fluidity, improve the uniformity of the green density and strength .

WC-Co, WC-TiC-Co cemented carbide production mixes Quality Control: Quality control mixture mainly through chemical analysis and identification block sintering tests to achieve.

WC-Co, WC-TiC-Co cemented carbide forming method of production mix

WC-Co, WC-TiC-Co cemented carbide products in a variety of molding methods . The production of commonly used method for forming a molded , cold isostatic pressing , extrusion molding plasticized powder , powder injection molding .

WC-Co, WC-TiC-Co cemented carbide sintering

Carbide sintering methods are: hydrogen sintering, vacuum sintering, hot pressing , vacuum - pressure sintering, hot isostatic pressing and sintering . In recent years, for the preparation of ultra-fine grain carbide, microwave sintering , spark plasma sintering process has been studied and utilized.

WC-Co, WC-TiC-Co alloys

Alloy Density : Density is the assessment of the performance of basic indicators carbide . Alloy composition is constant, the degree of size can reflect the organizational structure of carbide .

Coercive Force (Hc): The bonding metal alloy ferromagnetic material, so that a magnetic alloy .

Magnetic saturation (Com): saturation magnetic alloy of cobalt content in the alloy only , and is independent of WC grains , therefore , the magnetic saturation value can be identified with the alloy composition and alloy clamp the existence of non- magnetic phase .

Hardness (HRA): hardness carbide mechanical properties of a major general in the 83.0-94.0HRA between .
Bending strength : bending strength is a measure of an important indicator of quality carbide , generally between 1300-4000MPa .

Compressive strength: Compressive strength indicates the ability of an alloy to withstand compressive loads , WC-Co alloys with cobalt content increases strength and decreases WC grains .

Toughness : Toughness is a measure of mining carbide and wilt under harsh conditions intermittent cutting tools is an important indicator , WC-Co alloy toughness increases with the cobalt content and WC grain increases.


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