A kind of cemented carbide and its preparation method and application
A cemented carbide and wire rolling technology, applied in the field of cemented carbide, can solve the problems of bonding wear, stainless steel work hardening, poor surface quality of rolling grooves, etc. The effect of rolling tonnage increase
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Embodiment 1
[0040] Use 30% by weight of flaky tungsten carbide with a particle size of 10.0 μm (the area where the unit cell grows along the {0001} crystal plane is the same as the unit cell along the The area ratio of crystal plane growth is 5, denoted as S{0001} / S 0.8% Cr3 C 2 powder, 6% Co powder and the rest of ordinary WC powder with a particle size of 4 μm as raw materials; according to the requirements for the final preparation of WC-Co-Cr cemented carbide bulk materials, mix the above raw materials in proportion and perform wet grinding for 20 hours , The uniformly refined mixed powder is prepared into a mixture by spray drying; then the mixed powder is cold pressed into a billet, placed in a sintering furnace for liquid phase sintering, the sintering temperature is 1500 ° C, and then cooled to room temperature with the sintering furnace.
Embodiment 2-5
[0042] Embodiment 2-5 is the same as embodiment 1, only the content of Co powder is changed. The specific parameters are shown in Table 1.
Embodiment 6-10
[0044] Embodiment 6-10 is the same as embodiment 1, only changes Cr 3 C 2 The powder content and specific parameters are shown in Table 1.
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