CN104131193B - A kind of preparation method of filled type layer structure carbide alloy - Google Patents
A kind of preparation method of filled type layer structure carbide alloy Download PDFInfo
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- CN104131193B CN104131193B CN201410405662.7A CN201410405662A CN104131193B CN 104131193 B CN104131193 B CN 104131193B CN 201410405662 A CN201410405662 A CN 201410405662A CN 104131193 B CN104131193 B CN 104131193B
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Abstract
The present invention relates to a kind of preparation method of filled type layer structure carbide alloy, belong to metal dust moulding preparing technical field. The present invention makes filled type layer structure carbide alloy by 30-40% major ingredient and 60-70% inserts by compacting. The present invention can realize coarse grain and compact grained organically combines, thereby change the grainiess of subsequent product, and can realize the combination of high cobalt and low cobalt and primary tungsten carbide and regeneration tungsten carbide, thereby the cobalt layer structure that changes subsequent product, fundamentally overcomes hart metal product toughness and wear-resisting opposed contradiction. And expanded the scope of application of regeneration tungsten resource, create larger Social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of preparation method of filled type layer structure carbide alloy, belong to metal dust moulding technology of preparingField.
Background technology
Filled type layer structure carbide alloy is mainly for conventional monolayers uniformity structure alloy. Individual layer is evenProperty carbide alloy, its composition is made up of hard phase (WC, WC-Tic etc.) and Binder Phase (as CO, CO+Ni etc.), this single layer structureThe entirety that is formed a continuous transition by the interphase interaction of Binder Phase metallic molecule. The institutional framework of this individual layer causes itPerformance has paradox, i.e. good toughness, wears no resistance, well poor toughness of wearability. Therefore, being necessary to research and develop one has concurrentlyThe high tenacity of high-cobalt hart metal and the high-wearing feature of hard alloy in low cobalt, have concurrently again simultaneously super thick carbide alloy high tenacity andThe carbide alloy of fine grain hard alloy wearability.
Summary of the invention
The object of the invention is to: provide a kind of by filling reinforced mode, in identical product, change carbide alloyCobalt layer structure, grainiess and raw material structure, thereby the filled type stratiform of the high tenacity of realization and high-wearing feature perfect unityThe preparation method of structure carbide alloy.
Technical scheme of the present invention is:
A preparation method for filled type layer structure carbide alloy, is characterized in that: it is by following weight percentageRaw material mutually suppress and to form:
30-40% major ingredient 60-70% inserts
Described major ingredient is any one in coarse-grain pellet, low cobalt material, primary tungsten carbide.
Described inserts is any one in fine grain material, high cobalt material, regeneration tungsten carbide.
Described coarse-grain pellet is that grain size is the carbide alloy of 2.5-6.0 μ m, and fine grain material is that grain size is below 1 μ mTungsten carbide powder;
Described low cobalt material refers to that cobalt content is 6%-8%; High cobalt material refers to that containing cobalt amount be 11%-20%;
Described primary tungsten carbide refers to the tungsten carbide being prepared from by primary tungsten powder; Regeneration tungsten carbide refers to prepareTungsten carbide powder after the alloy from waste reduction processing of Cheng Hezhi alloy material.
The preparation method of above-mentioned filled type layer structure carbide alloy, is characterized in that: it comprises the following steps:
1) determine, first by weight percentage major ingredient and inserts,
2), according to the part by weight relation between major ingredient and inserts, first determine volume size and the substance of inserts, soAfter inserts is pressed into angle is 55o-65oBullet-shaped semi-finished product; Pressure in inserts semi-finished product pressing process is600 kilograms/every square centimeter; It is 55 that inserts is pressed into angleo-65oThe half-finished object of bullet-shaped, be to ensureIn follow-up pressing process, between inserts and major ingredient, contact-making surface becomes " V " type interface, to ensure to suppress quality;
3), according to total substance of product, the major ingredient of surplus is dropped in die cavity, then insert the filling suppressing in advanceMaterial is suppressed under the pressing conditions of 800 kilograms/every square centimeter, is compressed to time 4-6 second, obtains filled type layer structure hardMatter alloy.
Beneficial effect of the present invention is
1, the present invention can realize coarse grain and compact grained combination, thereby changes the grainiess of subsequent product, carriesThe combination property of high product.
2, the present invention can realize the combination of high cobalt and low cobalt, thereby changes the cobalt layer structure of subsequent product, from allOn overcome hart metal product toughness and wear-resisting opposed contradiction.
3, the present invention can realize the combination of primary tungsten carbide and regeneration tungsten carbide, has expanded greatly regeneration tungsten resourceThe scope of application, created larger Social benefit and economic benefit.
Brief description of the drawings
Accompanying drawing is the schematic cross-section of filled type layer structure carbide alloy of the present invention.
In figure: 1, major ingredient, 2, inserts.
Detailed description of the invention
Embodiment 1
First by the percentage by weight of 35% ︰ 65% take coarse-grain pellet that granularity is 2.5-6.0 μ m and grain size 1 μ m withUnder fine grain material, then according to the part by weight relation between coarse-grain pellet and fine grain material, determine that the volume of fine grain material is largeLittle and substance, then fine grain material being pressed into angle is 55oBullet-shaped semi-finished product. Fine grain material is pressed into angle is55oThe half-finished object of bullet-shaped, be to ensure that between fine grain material and coarse-grain pellet, contact-making surface must become " V " type to connectMouthful, thereby ensure the quality that is connected that follow-up coarse-grain pellet suppresses mutually with fine grain material. In fine grain material semi-finished product pressing processPressure be 600 kilograms/every square centimeter. According to total substance of product, the coarse-grain pellet of surplus is dropped in die cavity, thenInsert the fine grain material semi-finished product that suppress in advance and suppress under the pressing conditions of 800 kilograms/every square centimeter, be compressed toTime 4-6 second, obtain filled type layer structure carbide alloy.
Embodiment 2
First by the percentage by weight of 30% ︰ 70%, to take low cobalt material that cobalt content is 6%-8% and cobalt content be 11%-20%High cobalt material, then according to the part by weight relation between low cobalt material and high cobalt material, determine volume size and the substance of high cobalt material, thenIt is 60 that high cobalt material is pressed into angleoBullet-shaped semi-finished product. It is 60 that high cobalt material is pressed into angleoBullet-shaped half becomeThe object of product, is to ensure that between high cobalt material and low cobalt material, contact-making surface must become " V " type interface, thus ensure follow-up low cobalt material withThe linking quality that high cobalt material is suppressed mutually. Pressure in high cobalt material semi-finished product pressing process is 600 kilograms/every square centimeter. RootAccording to total substance of product, the low cobalt material of surplus is dropped in die cavity, then insert the high cobalt material semi-finished product that suppress in advance and existUnder the pressing conditions of 800 kilograms/every square centimeter, suppress, be compressed to time 4-6 second, obtain filled type layer structure hard and closeGold.
Embodiment 3
First take by the percentage by weight of 40% ︰ 60% the primary tungsten carbide and the alloy from waste that are prepared from by primary tungsten powderRegeneration tungsten carbide after reduction processing, then according to the part by weight relation between primary tungsten carbide and regeneration tungsten carbide, determine againVolume size and the substance of raw tungsten carbide, then regeneration tungsten carbide being pressed into angle is 65oBullet-shaped semi-finished product. Will be againIt is 65 that raw tungsten carbide is pressed into angleoThe half-finished object of bullet-shaped, be to ensure to regenerate tungsten carbide and primary tungsten carbideBetween contact-making surface must become " V " type interface, thereby ensure the matter that is connected that subsequent regeneration tungsten carbide suppresses mutually with primary tungsten carbideAmount. Pressure in regeneration tungsten carbide semi-finished product pressing process is 600 kilograms/every square centimeter. According to total substance of product, will remainThe former raw material of surplus drop in die cavity, then insert the reworked material semi-finished product that suppress in advance at 800 kilograms/every square centimeterUnder pressing conditions, suppress, be compressed to time 4-6 second, obtain filled type layer structure carbide alloy.
Claims (1)
1. a filled type layer structure carbide alloy, is characterized in that: it is mutually to be pressed by the raw material of following weight percentageSystem forms:
30-40% major ingredient 60-70% inserts
Described major ingredient is that grain size is low cobalt material, the primary tungsten carbide that carbide alloy, the cobalt content of 2.5-6.0 μ m is 6%-8%In any one;
Described inserts is high cobalt material, the regeneration carbonization that tungsten carbide powder, the cobalt content of grain size below 1 μ m is 11%-20%Any one in tungsten;
Described primary tungsten carbide refers to the tungsten carbide being prepared from by primary tungsten powder; Regeneration tungsten carbide refers to be prepared into and to closeTungsten carbide powder after the alloy from waste reduction processing of matter alloy material;
The preparation method of above-mentioned filled type layer structure carbide alloy comprises the following steps:
1) determine, first by weight percentage major ingredient and inserts,
2), according to the part by weight relation between major ingredient and inserts, first determine volume size and the substance of inserts, then willIt is 55 that inserts is pressed into angleo-65oBullet-shaped semi-finished product; Pressure in inserts semi-finished product pressing process is 600 public affairsJin/every square centimeter; It is 55 that inserts is pressed into angleo-65oThe half-finished object of bullet-shaped, be to ensure follow-up pressureIn process processed, between inserts and major ingredient, contact-making surface becomes " V " type interface, to ensure to suppress quality;
3), according to total substance of product, the major ingredient of surplus is dropped in die cavity, then insert the inserts suppressing in advance and existUnder the pressing conditions of 800 kilograms/every square centimeter, suppress, be compressed to time 4-6 second, obtain filled type layer structure hard and closeGold.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410405662.7A CN104131193B (en) | 2014-08-18 | 2014-08-18 | A kind of preparation method of filled type layer structure carbide alloy |
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| CN201410405662.7A CN104131193B (en) | 2014-08-18 | 2014-08-18 | A kind of preparation method of filled type layer structure carbide alloy |
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| CN104131193A CN104131193A (en) | 2014-11-05 |
| CN104131193B true CN104131193B (en) | 2016-05-25 |
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| CN109249027A (en) * | 2018-08-22 | 2019-01-22 | 株洲欧科亿数控精密刀具股份有限公司 | A kind of hard alloy numerical control blade of layer structure and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101899585A (en) * | 2010-07-23 | 2010-12-01 | 西安交通大学 | Prefabricated part of composite abrasion-resistant part and method for manufacturing abrasion-resistant part with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899585A (en) * | 2010-07-23 | 2010-12-01 | 西安交通大学 | Prefabricated part of composite abrasion-resistant part and method for manufacturing abrasion-resistant part with same |
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