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Wood cutting tool material of Ti(CN) cermet and preparation method thereof

A cutting tool material and cermet technology, which is applied in the field of powder metallurgy manufacturing, can solve problems such as high brittleness and poor toughness, and achieve the effects of reduced cutting processing costs, improved durability, and increased service life

Inactive Publication Date: 2012-05-02
CHENGDU BANGPU CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a woodworking tool material of Ti(CN) cermet and its preparation method, which solves the shortcomings of existing cermet tool materials such as high brittleness and poor toughness, and the manufacturing process is the same as that of cemented carbide

Method used

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  • Wood cutting tool material of Ti(CN) cermet and preparation method thereof
  • Wood cutting tool material of Ti(CN) cermet and preparation method thereof
  • Wood cutting tool material of Ti(CN) cermet and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Add the mass percentage according to the ratio of Ti(CN) powder: 55%; cobalt powder: 6%; nickel powder: 6%; molybdenum powder: 8%; tungsten carbide powder: 20%; Rolling ball mill with cemented carbide as the grinding body (the purity of the raw materials is greater than 99.5%, and the average particle size is less than 2.0 μm). Water ethanol, add molding agent of 4.1% of the total mass of raw materials and 0.3% of oleic acid, 0.4% of stearic acid at the same time, the cumulative ball milling time is: 96 hours, the slurry after ball milling to the point is atomized and dried by spray drying , Drying outlet temperature: 90°C, drying time: 120 minutes, bulk density of the obtained spray-dried mixed pellets: 2.95g / cm 3 , the fluidity is: 37 seconds / 50g, the sprayed pellets that meet this requirement are molded by a precision press and sintered in a pressure sintering furnace. The carrier gas flow rate is 40 liters / min; the sintering temperature is 1440°C, the carrier gas p...

Embodiment 2

[0026] The mass percentage is according to Ti (CN) powder: 60%; Cobalt powder: 7%; Nickel powder: 7%; Molybdenum powder: 10%; Tungsten carbide powder: 10.2%; Tantalum carbide powder: 5%; %; vanadium carbide powder: after 0.4% of the ratio of ingredients, add the rolling ball mill (the purity of the raw material is greater than 99.5%, and the average particle size is less than 2.0 μm) with cemented carbide as the grinding body. The rotating speed of the ball mill is: 35 rev / min, The ball-to-material ratio is: 10:1, the ball milling medium is absolute ethanol, and 4.2% molding agent, 0.3% oleic acid, and 0.3% stearic acid of the total mass of raw materials are added at the same time, and the cumulative ball milling time is: 100 hours, The slurry after ball milling to the point is atomized and dried by spray drying, the drying outlet temperature is 90°C, the drying time is 120 minutes, and the bulk density of the obtained spray-dried mixed pellets is: 3.10g / cm 3 , the fluidity is...

Embodiment 3

[0030]The mass percentage is according to Ti(CN) powder: 54%; cobalt powder: 9%; nickel powder: 11%; molybdenum powder: 10%; tungsten carbide powder: 10.2%; tantalum carbide powder: 5%; After the ratio of % is added to the rolling ball mill with cemented carbide as the grinding body (the purity of the raw materials is greater than 99.5%, and the average particle size is less than 2.0 μm), the rotating speed of the ball mill is: 35 rpm, and the ball-to-material ratio of the ball mill is: 10 : 1, the ball milling medium is absolute ethanol, and simultaneously add 4.1% molding agent of raw material gross mass and 0.3% oleic acid, 0.4% stearic acid, the accumulated ball milling time is: 110 hours, the slurry after ball milling to the point Spray drying is used for atomization drying, drying outlet temperature: 90°C, drying time: 130 minutes, and the bulk density of the obtained spray-drying mixed pellets is: 3.00g / cm 3 , the fluidity is: 35 seconds / 50g, the sprayed pellets that me...

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Abstract

The invention provides a wood cutting tool material of Ti(CN) cermet and a preparation method thereof, relating to the technical field of wood cutting tool materials. The Ti(CN) cermet comprises 50 to 65% of Ti(CN) powder, 5 to 10% of cobalt powder, 5 to 10% of nickel powder, 8 to 15% of molybdenum powder, 10 to 20% of tungsten carbide powder, 4 to 8% of tantalum carbide powder and 0 to 1.0% of chromium carbide and vanadium carbide powder. The preparation method comprises the steps of preparation of materials, ball milling, spray drying, compacting, pressure sintering and obtainment of a finished product. Compared to other cutter materials, a cutter prepared in the invention has durability and a service life increased by 1 to 10 times, a cutting speed increased by 1.5 to 3 times and cost for cutting processing reduced by 20% to 40%, and has a wide application prospect in processing of wood composite materials by using cermet cutters.

Description

Technical field: [0001] The invention relates to the technical field of woodworking tool materials, in particular to a Ti (CN) cermet woodworking tool material and a powder metallurgy manufacturing technology used for preparing the material. Background technique: [0002] Usually woodworking tool materials mainly include carbon tool steel, alloy tool steel, Stellite alloy, high-speed steel, etc. These materials are often used in occasions with low cutting speed, low feed speed and low processing accuracy requirements, and are generally used for solid wood processing. . With the emergence of wood composite materials such as fiberboard, particleboard, plywood and laminated timber, these traditional cutting materials can no longer meet the process requirements. The cemented carbide materials originally used for metal processing are now widely used in wood processing, and gradually It replaces high-speed steel and other materials; polycrystalline diamond and polycrystalline cub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/04B22F3/16
Inventor 李克林
Owner CHENGDU BANGPU CUTTING TOOLS CO LTD
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