CN101301686A - Fe/Ni-based carbide alloy coating cutter material for cutting rolled steel and preparation thereof - Google Patents
Fe/Ni-based carbide alloy coating cutter material for cutting rolled steel and preparation thereof Download PDFInfo
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- CN101301686A CN101301686A CNA2008100454390A CN200810045439A CN101301686A CN 101301686 A CN101301686 A CN 101301686A CN A2008100454390 A CNA2008100454390 A CN A2008100454390A CN 200810045439 A CN200810045439 A CN 200810045439A CN 101301686 A CN101301686 A CN 101301686A
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Abstract
The invention relates to a blade used for cutting processing of steels and a preparation method thereof. The blade comprises a hard alloy substrate which takes Fe and Ni as binding phase and a wearable coating. The binding phase in the hard alloy substrate occupies the proportion of 6 to 10 percent, wherein, the proportion of Fe to Ni is 3 : 1; the hard alloy substrate is all carbonyl powder; the coating is prepared by adopting a chemical vapour deposition technique; from a layer adjacent to the substrate to the most external layer, the coating materials sequentially comprises TiN (0.5-1 Mu meters), Ti(C, N) (5-8 Mu meters), Al2O3 (3-5Mu meters) and TiN (1-2Mu meters). After being coated, the blade coating and the substrate have high binding strength, good wearability, can be used for the rough turning processing of the carbon structural steels and alloy steels, and have an equivalent service life with P30 alloy.
Description
Technical field
The present invention is used for coated cemented carbide insert of cutting rolled steel processing and preparation method thereof, and particularly the carbide alloy with the Fe/Ni bonding is basal body coating layer blade and preparation method thereof.
Background technology
With WC, TiC, TaC is main hard phase, is that the carbide alloy of bonding phase has been the main material of machining since the nineteen twenty-three invention always with Co.But the bonding phase Co in the carbide alloy is a kind of rare strategic resource, and Co reserves in the world are 4,500,000 tons, and the distribute Zaire mainly concentrate on turbulent political situation and Zambia (the Co output of two countries account for the world 63%) and Russia.China Co resource shortage has been verified 56.30 ten thousand tons of Co reserves at present.China is present CEMENTED CARBIDE PRODUCTION and country of consumption the biggest in the world, accounts for 1/3 of the world, year about 1350t of consumption Co.Therefore need spend a large amount of foreign exchange import Co every year, but the supply of material of Co and conditions of demand complexity, very unstable (in non-turbulent political situation, the supply of material is difficult; The Russia economy instability, prospect of export is uncertain), cause the price fluctuation amplitude of Co bigger.And it is reported that lung cancer is relevant with the powder that suction contains Co.Therefore cemented carbide industry wishes to reduce the consumption of Co and the substitute of searching Co.
Fe and Ni belong to the iron group metal together with Co in the periodic table of chemical element.Density, fusing point, atomic radius is close, and physics, chemical property are close, can both good wetting WC hard phase, and Fe is much abundanter than Co with the reserves of Ni, so Fe, Ni are the substitutes of desirable Co.More research has reported that Fe/Ni is for the Co Study of Cemented Carbide.Chen Hongwei studies show that WC-Fe Ni system or WC-Fe Co Ni based material, best mechanical property all appears at the composition of Ni equivalent=25wt%, WC-Fe Co the Ni series hard metal to be used for the collars material be feasible on technology, have application value in the high speed wire rolling field.Human Fe, Ni such as Yong Zhihua partly replace the binding agent Co in the WC-8Co carbide alloy, add trace rare-earth Y again
2O
3Make WC-8 (Fe/Ni/Co) R carbide alloy, tested its physical and mechanical properties, and studied the influence of the bonding various composition ratios of Liu and sintering temperature carbide alloy.The result shows: the property of WC-8 (Fe/Ni/Co) R carbide alloy can reach the performance standard of YG8.Fe, the Ni part of people such as the Sun Baoqi exploitation of powder metallurgy factory of Zhongnan Polytechnic Univ is for the T series rock drilling carbide alloy physical and mechanical properties excellence of Co, and intensity hardness is good, and is approaching with traditional YJ series alloy, has tangible economic benefit and social benefit.Patent 01127466.2 discloses a kind of production process of cobalt-less hard alloy, belongs to the hard alloy blocks manufacturing process technology field.The present carbide alloy that uses contains cobalt improves cost.The technical scheme of this invention is: get tungsten carbide 85～94%, iron 5～10%, nickel 0.5～5% and sieve behind the ball mill ball milling, evaporate to dryness is after sieve then, adding buna gasoline solution in the powder of making, oven dry is sieved again, with the compound die forming after sieving make the carbide alloy blank in sintering furnace binder removal and under high temperature sintering, oil quenching after the alloy block cooling, cobalt-free hard alloy is made in tempering in batch-type furnace then.Its advantage is: manufacturing process is simple, and the cobalt-free hard alloy cost of making is low, and performance is suitable with cobalt-containing alloy.
Although in recent years to Fe, Ni has done more research for the Co carbide alloy, and at present mainly at wear part, field such as mine instrument or other less demanding occasions have obtained limited application to Fe/Ni for the Co carbide alloy.And Fe/Ni for the Co carbide alloy on hardness and wear resistance with the gap of traditional carbide alloy, make its application on the big typical carbide product (as cutting tool) of use amount be restricted.The invention of this patent a kind of carbide alloy with Fe/Ni bonding be the coating cutter material of matrix, be used for structural carbon steel and rough turning processing, service life and P30 alloy phase ought.
Summary of the invention
The present invention is directed to present Fe/Ni and use few present situation in the cutting tool field for the Co carbide alloy, it is the coating cutter material of matrix that a kind of carbide alloy with the Fe/Ni bonding is provided, and the preparation method of this cutter material is provided.
The blade that is used for cutting rolled steel of the present invention comprises hard alloy substrate and coating.It is characterized in that the matrix carbide alloy serves as to bond mutually with Fe and Ni, with WC, TiC is the hard phase.
Blade of the present invention is characterized in that matrix carbide alloy constituent is: bonding accounts for 6-10wt% (Fe: Ni=3 wherein: 1) mutually; TiC:6-15wt%, all the other are WC.
The matrix carbide alloy composition of blade of the present invention is characterized in that: Fe is a 2.0-2.5 μ m carbonyl iron dust; Ni is a 1.5-2.5 μ m carbonyl nickel powder; TiC adopts 2.0-2.5 μ m; WC: TiC=50: 50 (Ti, W) C solid solution is introduced;
Blade of the present invention is characterized in that coating constitutes by 4 layers, is followed successively by to outermost layer from adjacent with matrix: TiN (0.5～1 μ m)+Ti (C, N) (5～8 μ m)+Al203 (3～5 μ m)+TiN (1～2 μ m).
The preparation method of blade of the present invention comprises following step successively:
(1) the various carbide and the metal dust that will finally can satisfy the described matrix constituent of claim 2 weight percentage mixes wet-milling;
(2) material after the wet-milling through precipitation, dry, mix forming agent and make compound, compression moulding;
(3) the compacting green compact are made cutting tip through oversintering and coating processing;
The preparation method of blade of the present invention is characterized in that:
(1) wet-milling is carried out in the roller milling machine, and wet grinding media is an absolute ethyl alcohol, and mill ball is the WC-8wt%Co sintered carbide ball;
(2) forming agent is the SD rubber of 12wt%;
(3) sintering carries out in vacuum drying oven, and coating is handled and adopted chemical gaseous phase depositing process to carry out;
The preparation method of blade of the present invention, its technological parameter is:
(1) grinding rate is 56r/min, and milling time is 48h, and the mill ball diameter is 10mm, and ratio of grinding media to material is 5: 1;
(2) addition of SD rubber is 80～95ml/Kg, and pressing pressure is 300～400MPa
(3) come unstuck to be higher than under 10～15Pa and carry out, between 400 ℃～500 ℃, be incubated 2-4h in vacuum; Sintering vacuum is higher than 1～5 * 10
-2Carry out under the Pa, sintering temperature is 1400 ℃～1450 ℃, and temperature retention time is 1～1.5h;
(4) coating treatment process parameter is: depositing temperature: 700～900 ℃; Sedimentation time: 1～4 hour; Chamber pressure: 5～20KPa;
The basic proportioning of each primary raw material gas: CH3CN/TiCl4/H2=0.01/0.02/1.
The invention has the advantages that:
Because the plasticity of Fe and Ni is good, when wet-milling, assemble easily, form Fe pond and Ni pond during sintering, reduce the intensity of material.The present invention adopts carbonyl iron dust and carbonyl nickel powder, can avoid Fe and the Ni gathering when wet-milling, and obtaining uniformly, bonding distributes mutually.Adopt WC: TiC=50: 50 (Ti, W) C solid solution improves the hardness of matrix carbide alloy.Combine good between the coating structure of four-layer structure and the matrix carbide alloy, the decarburization phase can not appear, thereby increase the impact flexibility of blade, coating is carried out under lower temperature (700～900 ℃), can reduce thermal stress and obtain fine and closely woven tissue, be that blade has high wearability and thermal shock resistance.This that invented is the coating cutter material of matrix with the carbide alloy of Fe/Ni bonding, can be used for structural carbon steel and rough turning processing, and service life and P30 alloy phase are worked as.
Description of drawings
The microstructure pattern of example 1 coated chip among Fig. 1 the present invention
The wear of the tool flank pattern of example 1WC-TiC-Fe/Ni coated chip among Fig. 2 the present invention
The wear of the tool flank pattern of example 1WC-TiC-Co coated chip among Fig. 3 the present invention
The microstructure pattern of example 2 coated chips among Fig. 4 the present invention
The wear of the tool flank pattern of example 2WC-TiC-Fe/Ni coated chip among Fig. 5 the present invention
The wear of the tool flank pattern of example 2WC-TiC-Co coated chip among Fig. 6 the present invention
The specific embodiment
Example 1: prepare burden by following scheme: 2.15 μ m carbonyl Fe powder account for 6.9wt%; 2.45 μ m carbonyl Ni powder accounts for wt2.3%; 2.25 μ mWC: TiC=50: 50 (Ti, W) C solid solution accounts for 12.4%, and all the other are WC.Various accurately carbide of weighing and metal dust are mixed, grind in the drum-type wet milk, wet grinding media is an absolute ethyl alcohol, and mill ball is the WC-8wt%Co sintered carbide ball; Grinding rate is 56r/min, and milling time is 48h, and the mill ball diameter is 10mm, and ratio of grinding media to material is 5: 1, after the wet-milling through precipitation and dry, the SD rubber-moulding agent of mixing 12wt%.The addition of forming agent is 80ml/Kg, is pressed into the TNMG160408 blade after sieving, and pressing pressure is 300～400MPa.Sintering in vacuum sintering furnace comes unstuck to be higher than under 10～15Pa in vacuum and carries out, and is incubated 2-4h between 400 ℃～500 ℃; Sintering vacuum is higher than 1～5 * 10
-2Carry out under the Pa, sintering temperature is 1440 ℃, and temperature retention time is 1h.Carry out coating with chemical vapour deposition technique then and handle, coating treatment process parameter is: depositing temperature: 700～900 ℃; Sedimentation time: 1～4 hour; Chamber pressure: 5～20KPa; The basic proportioning of each primary raw material gas: CH3CN/TiCl4/H2=0.01/0.02/1.The coating that obtains constitutes by 4 layers, is followed successively by to outermost layer from adjacent with matrix: TiN (0.5～1 μ m)+Ti (C, N) (5～8 μ m)+Al203 (3～5 μ m)+TiN (1～2 μ m).According to the iron carbide alloy of nickel-base coated chip even tissue of mentioned component and process conditions preparation, its grain size is 1.8-2.2 μ m, bending strength 1720MPa, hardness 91.6HRA.Its microscopic appearance is seen Fig. 1.
According to the iron carbide alloy of nickel-base coated chip of mentioned component and process conditions preparation, be anchoring strength of coating contrast experiment and cutting ability contrast experiment with traditional C o base cemented carbide coated chip with identical binder content and identical coating structure.The bond strength of WC-TiC-Fe/Ni coated chip and WC-TiC-Co coated chip be respectively 9.15 and the lathe that adopts of 7.65Kg. cutting experiment be the CW6140A lathe; Machined material is long 500mm, the modified 45 steel poles of Φ 100, and hardness is HRC25; The Tool in Cutting parameter is: amount of feeding f=0.3mm/r; Cutting speed V=200m/min; Cutting depth a
p=2mm; Cutting experiment is the result show: under above-mentioned cutting experiment condition, iron carbide alloy of nickel-base coated chip and the traditional C o base cemented carbide coated chip with identical binder content and the identical coating structure back knife face behind 13 poles of cutting all has only wearing and tearing seldom, and Fig. 2 and Fig. 3 are respectively the wear of the tool flank picture of WC-TiC-Fe/Ni coated chip and WC-TiC-Co coated chip.
Example 2: prepare burden by following scheme: 2.15 μ m carbonyl Fe powder account for 4.5wt%; 2.45 μ m carbonyl Ni powder accounts for wt1.5%; 2.25 μ mWC: TiC=50: 50 (Ti, W) C solid solution accounts for 30%, and all the other are WC.Various accurately carbide of weighing and metal dust are mixed, grind in the drum-type wet milk, wet grinding media is an absolute ethyl alcohol, and mill ball is the WC-8wt%Co sintered carbide ball; Grinding rate is 56r/min, and milling time is 48h, and the mill ball diameter is 10mm, and ratio of grinding media to material is 5: 1, after the wet-milling through precipitation and dry, the SD rubber-moulding agent of mixing 12wt%.The addition of forming agent is 80ml/Kg, is pressed into the TNMG160408 blade after sieving, and pressing pressure is 300～400MPa.Sintering in vacuum sintering furnace comes unstuck to be higher than under 10～15Pa in vacuum and carries out, and is incubated 2-4h between 400 ℃～500 ℃; Sintering vacuum is higher than 1～5 * 10
-2Carry out under the Pa, sintering temperature is 1440 ℃, and temperature retention time is 1h.Carry out coating with chemical vapour deposition technique then and handle, coating treatment process parameter is: depositing temperature: 700～900 ℃; Sedimentation time: 1～4 hour; Chamber pressure: 5～20KPa; The basic proportioning of each primary raw material gas: CH3CN/TiCl4/H2=0.01/0.02/1.The coating that obtains constitutes by 4 layers, is followed successively by to outermost layer from adjacent with matrix: TiN (0.5～1 μ m)+Ti (C, N) (5～8 μ m)+Al203 (3～5 μ m)+TiN (1～2 μ m).According to the iron carbide alloy of nickel-base coated chip even tissue of mentioned component and process conditions preparation, its grain size is 1.6-1.8 μ m, bending strength 1700MPa, hardness 92.0HRA.Its microscopic appearance is seen Fig. 4.
According to the iron carbide alloy of nickel-base coated chip of mentioned component and process conditions preparation, be anchoring strength of coating contrast experiment and cutting ability contrast experiment with traditional C o base cemented carbide coated chip with identical binder content and identical coating structure.The bond strength of WC-TiC-Fe/Ni coated chip and WC-TiC-Co coated chip be respectively 8.97 and the lathe that adopts of 7.65Kg. cutting experiment be the CW6140A lathe; Machined material is long 500mm, the modified 45 steel poles of Φ 100, and hardness is HRC25; The Tool in Cutting parameter is: amount of feeding f=0.3mm/r; Cutting speed V=200m/min; Cutting depth a
p=2mm; Cutting experiment is the result show: under above-mentioned cutting experiment condition, iron carbide alloy of nickel-base coated chip and the traditional C o base cemented carbide coated chip with identical binder content and the identical coating structure back knife face behind 13 poles of cutting all has only wearing and tearing seldom, and Fig. 5 and Fig. 6 are respectively the wear of the tool flank picture of WC-TiC-Fe/Ni coated chip and WC-TiC-Co coated chip.
Claims (7)
1. a blade that is used for cutting rolled steel comprises hard alloy substrate and coating; It is characterized in that the matrix carbide alloy serves as to bond mutually with Fe and Ni, with WC, TiC is the hard phase.
2. blade according to claim 1 is characterized in that matrix carbide alloy constituent is: bonding accounts for 6-10wt% (Fe: Ni=3 wherein: 1) mutually; TiC: 6-15wt%, all the other are WC.
3. matrix carbide alloy composition according to claim 2 is characterized in that: Fe is a 2.0-2.5 μ m carbonyl iron dust; Ni is a 1.5-2.5 μ m carbonyl nickel powder; TiC adopts 2.0-2.5 μ mWC: TiC=50: 50 (Ti, W) C solid solution introducing.
4. blade according to claim 1 is characterized in that coating constitutes by 4 layers, is followed successively by to outermost layer from adjacent with matrix: TiN (0.5～1 μ m)+Ti (C, N) (5～8 μ m)+Al2O3 (3～5 μ m)+TiN (1～2 μ m).
5. the preparation method of the blade of stating according to claim 1 comprises following step successively:
(1) the various carbide and the metal dust that will finally can satisfy the described matrix constituent of claim 2 weight percentage mixes wet-milling;
(2) material after the wet-milling through precipitation, dry, mix forming agent and make compound, compression moulding;
(3) the compacting green compact are made cutting tip through oversintering and coating processing.
6. cutting tip preparation method according to claim 4 is characterized in that:
(1) wet-milling is carried out in the roller milling machine, and wet grinding media is an absolute ethyl alcohol, and mill ball is the WC-8wt%Co sintered carbide ball;
(2) forming agent is the SD rubber of 12wt%;
(3) sintering carries out in vacuum drying oven, and coating is handled and adopted chemical gaseous phase depositing process to carry out.
7. cutting tip preparation method according to claim 4 is characterized in that:
(1) grinding rate is 56r/min, and milling time is 48h, and the mill ball diameter is 10mm, and ratio of grinding media to material is 5: 1;
(2) addition of SD rubber is 80-95ml/Kg, and pressing pressure is 300～400MPa;
(3) come unstuck to be higher than under 10～15Pa and carry out, between 400 ℃～500 ℃, be incubated 2-4h in vacuum; Sintering vacuum is higher than 1～5 * 10
-2Carry out under the Pa, sintering temperature is 1400 ℃～1480 ℃, and temperature retention time is 1～1.5h;
(4) coating treatment process parameter: depositing temperature: 700～900 ℃; Sedimentation time: 1～4 hour; Chamber pressure: 5～20KPa; The basic proportioning of each primary raw material gas: CH3CN/TiCl4/H2=0.01/0.02/1.
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| CN102021464A (en) * | 2010-12-15 | 2011-04-20 | 中国铝业股份有限公司 | Material for aluminium electrolysis crust breaking chip |
| CN102732766A (en) * | 2012-07-06 | 2012-10-17 | 四川大学 | Coarse grain hard alloy material and preparation method thereof |
| CN102990303A (en) * | 2012-12-03 | 2013-03-27 | 浙江东钨实业有限公司 | Manufacturing method of hard alloy special-shaped product |
| CN103014472A (en) * | 2012-12-14 | 2013-04-03 | 苏州新锐合金工具股份有限公司 | Hard alloy with iron-nickel as binder metal and preparation method thereof |
| CN103820694A (en) * | 2014-01-27 | 2014-05-28 | 湖南海云冶金材料有限公司 | Method for preparing WC (Wolfram Carbide)-TiC (Titanium Carbide) solid solution powder for tungsten-titanium-cobalt hard alloy |
| CN104404335A (en) * | 2014-12-29 | 2015-03-11 | 株洲硬质合金集团有限公司 | Steel bond hard alloy |
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| CN105057802A (en) * | 2015-08-10 | 2015-11-18 | 江苏塞维斯数控科技有限公司 | Heat-resisting tool for linear cutting machine tool |
| CN106032555A (en) * | 2015-03-18 | 2016-10-19 | 中国科学院宁波材料技术与工程研究所 | Granular material and preparation method thereof |
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| US9765573B2 (en) * | 2015-05-25 | 2017-09-19 | Shanghai Gogoal Industry Co., Ltd. | Composite tungsten carbide insert with heterogeneous composition and structure and manufacturing method thereof |
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| AT522605A1 (en) * | 2019-05-23 | 2020-12-15 | Boehlerit Gmbh & Co Kg | Carbide insert |
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| CN115302212A (en) * | 2022-08-15 | 2022-11-08 | 江苏利宇剃须刀有限公司 | Tungsten carbide razor blade preparation process |
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| CN102732766A (en) * | 2012-07-06 | 2012-10-17 | 四川大学 | Coarse grain hard alloy material and preparation method thereof |
| CN102990303A (en) * | 2012-12-03 | 2013-03-27 | 浙江东钨实业有限公司 | Manufacturing method of hard alloy special-shaped product |
| CN103014472A (en) * | 2012-12-14 | 2013-04-03 | 苏州新锐合金工具股份有限公司 | Hard alloy with iron-nickel as binder metal and preparation method thereof |
| CN103820694B (en) * | 2014-01-27 | 2015-11-25 | 湖南海云冶金材料有限公司 | The preparation method of a kind of tungsten-titanium-cobalt series hard metal WC-TiC solid-solution powder |
| CN103820694A (en) * | 2014-01-27 | 2014-05-28 | 湖南海云冶金材料有限公司 | Method for preparing WC (Wolfram Carbide)-TiC (Titanium Carbide) solid solution powder for tungsten-titanium-cobalt hard alloy |
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| CN105063411A (en) * | 2015-07-29 | 2015-11-18 | 昆山德泰新材料科技有限公司 | Preparation method for tungsten-copper-cobalt alloy powder |
| CN105057802A (en) * | 2015-08-10 | 2015-11-18 | 江苏塞维斯数控科技有限公司 | Heat-resisting tool for linear cutting machine tool |
| CN106637130A (en) * | 2016-12-29 | 2017-05-10 | 东莞市吉和金属制品有限公司 | Hard alloy blade and preparation method thereof |
| CN107619980A (en) * | 2017-09-12 | 2018-01-23 | 河源正信硬质合金有限公司 | A kind of ultra-fine grain cobalt-free hard alloy and preparation method thereof |
| CN107619980B (en) * | 2017-09-12 | 2019-04-30 | 河源正信硬质合金有限公司 | A kind of ultra-fine grain cobalt-free hard alloy and preparation method thereof |
| CN109047772A (en) * | 2018-08-14 | 2018-12-21 | 安徽利成机电设备制造有限公司 | A kind of production method being cut by laser machine knife blade |
| AT522605A1 (en) * | 2019-05-23 | 2020-12-15 | Boehlerit Gmbh & Co Kg | Carbide insert |
| AT522605B1 (en) * | 2019-05-23 | 2021-02-15 | Boehlerit Gmbh & Co Kg | Carbide insert |
| CN113874546A (en) * | 2019-05-27 | 2021-12-31 | 山特维克科洛曼特公司 | Coated cutting tool |
| CN113874546B (en) * | 2019-05-27 | 2023-09-05 | 山特维克科洛曼特公司 | Coated cutting tool |
| CN113649575A (en) * | 2021-07-02 | 2021-11-16 | 湖北刃锋精工有限公司 | Hard alloy blade and preparation method thereof |
| CN113649575B (en) * | 2021-07-02 | 2023-08-04 | 湖北刃锋精工有限公司 | Cemented carbide blade and preparation method thereof |
| CN115302212A (en) * | 2022-08-15 | 2022-11-08 | 江苏利宇剃须刀有限公司 | Tungsten carbide razor blade preparation process |
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