Seed Technologies Corp., Ltd.

Pioneer Energy (jiangsu) Co., Ltd.

Zhihua Cao

Yuehua Xu

Bin Liu

Hong Wang

Ji Wu

Cankun Chen

Shuo Liu

Disclosed is an alloy drill. Components of the alloy drill are: 14-30 wt % of a binder phase being one or more of Co, Ni, Fe, and Cu; 0.32-9.7 wt % of an additive being one or more of TaC, MoC, Cr3C2, and MnC; and the remainder as a hard phase being WC. In the alloy drill, WC is used as the hard phase to improve its hardness and wear resistance, Cu, Ni, Fe, or Co as the binder phase can improve its anti-corrosion performance and anti-fatigue performance, and TaC, MoC, Cr3C2, or MnC as the additive can further improve its thermal stability and wear resistance. Thus, the alloy drill has superior wear resistance and impact toughness, and also possesses excellent anti-corrosion performance and anti-fatigue performance.

Alloy drill and manufacturing method thereof

A composite hard-surface material preparation method and a composite hard-surface material prepared thereby, the preparation method comprising: dispersedly fixing a plurality of cemented carbide sheets () to a surface of a metal substrate (); and surfacing the cemented carbide sheets () and the metal substrate () with a solder () to obtain a composite hard-surface material, the solder () comprising nickel-based alloy powder, tungsten carbide particles and boron nitride powder. The solder () used in the preparation of the composite hard-surface material comprises nickel-based alloy powder, tungsten carbide particles and boron nitride powder, wherein the nickel-based alloy powder can increase fluidity and corrosion resistance, the tungsten carbide particle can improve hardness, and the boron nitride powder can effectively reduce friction coefficient. The present solder has good fluidity, high hardness and good solderability, using said solder, the obtained composite hard-surface material may enjoy good wear resistance.

Composite hard-surface material and preparation method therefor

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Hunan, China

Zhihua Cao