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Titanized cubic boron nitride clad sheet and preparation process thereof

A cubic boron nitride, preparation process technology, applied in metal material coating process, sputtering plating, ion implantation plating, etc., can solve the problems affecting the service life and efficiency of cubic boron nitride composite sheet Capacitance and other issues, to achieve the effect of eliminating the bridging effect, improving performance compatibility, and increasing reaction temperature

Active Publication Date: 2018-12-07
ZHONGNAN DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common cubic boron nitride composite sheets in the prior art are usually prepared by ordinary (no surface coating) cubic boron nitride particles. Due to the structural defects and performance compatibility problems on the surface of ordinary cubic boron nitride particles, the cubic boron nitride composite sheet is affected. Improvement of Service Life and Efficiency of Boron Nitride Composite Sheets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation process of a titanium-plated cubic boron nitride composite sheet, comprising the following steps:

[0036] 1) Cobalt removal on the surface of the cemented carbide substrate: wrap the polytetrafluoroethylene protective material on the bottom and side of the cemented carbide substrate, and then place it on the HNO 3 :H 2 Etch in a solution with O volume ratio of 1:2.5 for 50 min, take out the cemented carbide substrate and rinse it with ion water to neutrality to obtain a cemented carbide substrate with decobalt on the surface, the thickness of the decobalt layer is 150 μm, and the cobalt content of the decobalt layer 1.6% (weight percentage);

[0037] Among them, the material grade of the cemented carbide substrate is YG12, and the specification is φ45mm×3.0mm;

[0038] 2) Titanium coating on the surface of cubic boron nitride micropowder: TiO 2 , MgO, NaCl and Al are mixed in a mass ratio of 35: 25: 30: 10 to obtain component A, and absolute ethanol, b...

Embodiment 2

[0053] A preparation process of a titanium-plated cubic boron nitride composite sheet, comprising the following steps:

[0054] 1) Cobalt removal on the surface of the cemented carbide substrate: wrap the polytetrafluoroethylene protective material on the bottom and side of the cemented carbide substrate, and then place it on the HNO 3 :H 2 Etching in a solution with O volume ratio of 1:3 for 160 min, took out the cemented carbide substrate and rinsed it with ionized water until neutral to obtain a cemented carbide substrate with decobalt on the surface, the thickness of the decobalt layer was 300 μm, and the cobalt content of 1.8% (weight percentage);

[0055] Among them, the material grade of the cemented carbide substrate is YG12, and the specification is φ45mm×3.0mm;

[0056] 2) Titanium coating on the surface of cubic boron nitride micropowder: TiO 2 , MgO, NaCl and Al are mixed in a mass ratio of 45:22:25:8 to obtain component A, and absolute ethanol, butanol, PEG200 ...

Embodiment 3

[0071] A preparation process of a titanium-plated cubic boron nitride composite sheet, comprising the following steps:

[0072] 1) Cobalt removal on the surface of the cemented carbide substrate: wrap the polytetrafluoroethylene protective material on the bottom and side of the cemented carbide substrate, and then place it on the HNO 3 :H 2 Etching in a solution with O volume ratio of 1:2.75 for 105 min, took out the cemented carbide substrate and rinsed it with ion water to neutrality to obtain a cemented carbide substrate with decobalt on the surface, the thickness of the decobalt layer was 225 μm, and the cobalt content of 1.7% (weight percentage);

[0073] Among them, the material grade of the cemented carbide substrate is YG12, and the specification is φ45mm×3.0mm;

[0074] 2) Titanium coating on the surface of cubic boron nitride micropowder: TiO 2 , MgO, NaCl and Al are mixed in a mass ratio of 40:23.5:27.5:9 to obtain component A, and absolute ethanol, butanol, PEG2...

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PUM

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Abstract

The invention discloses a titanized cubic boron nitride clad sheet and a preparation process thereof. The preparation process of the titanized cubic boron nitride clad sheet includes the steps of 1),surface cobalt removing of a hard alloy substrate; 2), surface titanizing of cubic boron nitride micro-powder; 3), purification of titanized cubic boron nitride micro-powder; 4), mixing preparation ofa cubic boron nitride powder layer; 5), preparation of a composite assembly; and 6), preparation of the clad sheet, wherein the titanized cubic boron nitride clad sheet is obtained. The prepared titanized cubic boron nitride clad sheet meets the machining requirements that an ultra-hard composite tool used in cutting and milling processes has high precision and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of superhard materials, and in particular relates to a titanium-coated cubic boron nitride composite sheet and a preparation process thereof. Background technique [0002] Cubic boron nitride composite sheet is a superhard composite material sintered under high temperature and high pressure conditions with cubic boron nitride micropowder and cemented carbide substrate as the substrate. Because of its high hardness and wear resistance of cubic boron nitride It has the characteristics of good resistance, and at the same time, it has the characteristics of strong impact resistance and good weldability of cemented carbide, so it is widely used in the field of machining tools. [0003] Cubic boron nitride composite sheet is a tool material with excellent performance. Due to its very high chemical inertness with iron group elements, it plays an indispensable role in the processing of high toughness, high wear resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/28C23C14/18B22F1/02B22F1/00B22F9/04B22F3/10B22F3/14B22F7/04B22F5/00C22C29/16C22C26/00
CPCC22C26/00C23C14/18C23F1/28B22F3/001B22F3/101B22F3/14B22F5/00B22F7/04B22F9/04B22F2009/043B22F2005/001C22C2026/007C22C2026/006B22F1/105B22F1/142B22F1/17
Inventor 张涛卢灿华窦明刘俊涛
Owner ZHONGNAN DIAMOND CO LTD
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