CN208801683U - PcBN composite sheet - Google Patents
PcBN composite sheet Download PDFInfo
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- CN208801683U CN208801683U CN201821210879.2U CN201821210879U CN208801683U CN 208801683 U CN208801683 U CN 208801683U CN 201821210879 U CN201821210879 U CN 201821210879U CN 208801683 U CN208801683 U CN 208801683U
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- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 82
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 32
- 239000011195 cermet Substances 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 160
- 239000007767 bonding agent Substances 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000003779 heat-resistant material Substances 0.000 claims description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 229910010037 TiAlN Inorganic materials 0.000 claims description 4
- 229910008482 TiSiN Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 claims description 4
- 229910021332 silicide Inorganic materials 0.000 claims description 4
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000005439 thermosphere Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 239000000956 alloy Substances 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 12
- 238000005245 sintering Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 229910052582 BN Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
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- Ceramic Products (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model provides a kind of PcBN composite sheet.The PcBN composite sheet includes cBN material layer and at least one layer of refractory layer for being covered in cBN material layer, and each layer refractory layer is the composite layer of ceramic material layer, cermet material layer or ceramic material and cermet material composition.Above-mentioned refractory layer being capable of heat resistance with higher, inoxidizability, hardness and strength.The products such as cutter are welded and are processed as to above-mentioned PcBN composite sheet and alloy substrate, the flank of settable cutter is made of cBN, and rake face is mainly made of refractory layer.At this point, cutter flank shows as the high rigidity and high-wearing feature of cBN；Rake face shows as the heat resistance of ceramic material.In the case where not influencing cBN service performance, heat resistance is improved, to effectively improve cBN cutting-tool's used life, processing efficiency is improved, reduces production cost.
Description
Technical field
The utility model relates to field of material preparation, in particular to a kind of PcBN composite sheet.
Background technique
Polycrystalline cubic boron nitride (PcBN) is to be succeeded in developing first by GE company, the U.S. in last century, be after diamond it
A kind of successfully novel artificial superhard material is manufactured afterwards.Cubic boron nitride (cBN) is similar to diamond crystal structures, has high hard
The features such as degree, high-termal conductivity, low thermal coefficient of expansion, has extensive in the processing of the materials such as hardened steel, cast iron, powder metallurgy
Using.Polycrystalline cubic boron nitride is divided into integrated piece and two kinds of forms of composite sheet with hard alloy substrate, wherein PcBN integrated piece
It is made of being sintered at high temperature under high pressure as cBN particle and bonding agent；PcBN composite sheet is by cBN particle, bonding agent and hard
Made of alloy substrate is sintered at high temperature under high pressure.
CBN has a wide range of applications in cutter due to having the characteristics that high rigidity and high abrasion resistance.It was cutting
Cheng Zhong, cutter flank is mainly physically worn, and rake face is mainly by the effect of thermal wear.However, since cBN is heat-resisting
Property is lower, cause in process cBN material surface be highly prone to oxidative wear, so as to cause converted products such as process tools
Service life reduction, cost increase.
Utility model content
The main purpose of the utility model is to provide a kind of PcBN composite sheets, to solve cBN material table in the prior art
Face is vulnerable to the problem of converted products service life reduction, cost increase caused by oxidative wear.
To achieve the goals above, one aspect according to the present utility model provides a kind of PcBN composite sheet, including
CBN material layer and at least one layer of refractory layer being covered in cBN material layer, and each layer refractory layer is ceramic material layer, metal
The composite layer of ceramic material layer or ceramic material and cermet material composition.
Further, ceramic material layer is selected from TiN layer, TiC layer, TiCN layer, TiAlN layers, TiSiN layers, Al2O3Layer,
TiCrAlN layers, Si3N4Layer and ZrO layers it is any one or more of.
Further, cermet material layer choosing autoxidisable substance based ceramic metal layer, carbide-base ceramics layer, nitridation
Object based ceramic metal layer, boride-base cerment layer and silicide based ceramic metal layer are any one or more of.
It further, include transition with one layer of refractory layer of cBN material layer contacts in single layer refractory layer or multi-layered layer
The surface of the separate cBN material layer side of transition refractory layer is arranged in refractory layer and heat-resistant material layer, heat-resistant material layer.
Further, the material of cBN material layer is the composite layer being made of cBN and bonding agent.
Further, refractory layer with a thickness of 0.1~0.5mm.
Further, PcBN composite sheet further includes the alloy-layer for being set to the separate refractory layer side of cBN material layer.
Using the technical solution of the utility model, a kind of PcBN composite sheet is provided, since the PcBN composite sheet includes cBN
Material layer and at least one layer of refractory layer being covered in cBN material layer, and the material for forming each layer refractory layer includes ceramic material
Material and/or cermet material, to enable above-mentioned refractory layer heat resistance with higher, inoxidizability, hardness and strength.
The products such as cutter are welded and are processed as to above-mentioned PcBN composite sheet and alloy substrate, the flank of settable cutter is made of cBN,
Rake face is mainly made of refractory layer.At this point, cutter flank shows as the high rigidity and high-wearing feature of cBN；Rake face performance
For the heat resistance of ceramic material.In the case where not influencing cBN service performance, heat resistance is improved, to effectively improve cBN knife
The service life of tool improves processing efficiency, reduces production cost.
Detailed description of the invention
The Figure of description for constituting a part of the utility model is used to provide a further understanding of the present invention, this
The illustrative embodiments and their description of utility model do not constitute the improper limit to the utility model for explaining the utility model
It is fixed.In the accompanying drawings:
Fig. 1 shows a kind of structural schematic diagram of PcBN composite sheet provided by the utility model.
Wherein, the above drawings include the following reference numerals:
10, cBN material layer；20, refractory layer；210, transition refractory layer；220, heat-resistant material layer.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.In addition, term " packet
Include " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps
Or the process, method, system, product or equipment of unit those of are not necessarily limited to be clearly listed step or unit, but can wrap
Include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As described in background technique, in the prior art since cBN heat resistance is lower, cause in process
CBN material surface is highly prone to oxidative wear, increases so as to cause the converted products such as process tool service life reduction, cost.This Shen
It is please studied regarding to the issue above, proposes a kind of PcBN composite sheet, as shown in Figure 1, including cBN material layer 10 and covering
In at least one layer of refractory layer 20 in cBN material layer 10, and the material for forming each layer refractory layer 20 includes ceramic material and/or gold
Belong to ceramic material.
In the above-mentioned PcBN composite sheet of the utility model due to the material for forming each layer refractory layer include ceramic material and/
Or cermet material, to enable above-mentioned refractory layer heat resistance with higher, inoxidizability, hardness and strength.It will be upper
It states PcBN composite sheet and alloy substrate welds and be processed as the products such as cutter, the flank of settable cutter is made of cBN, preceding knife
Face is mainly made of refractory layer.At this point, cutter flank shows as the high rigidity and high-wearing feature of cBN；Rake face shows as making pottery
The heat resistance of ceramic material.In the case where not influencing cBN service performance, heat resistance is improved, to effectively improve cBN cutter
Service life improves processing efficiency, reduces production cost.
In the above-mentioned PcBN composite sheet of the utility model, in order to improve the heat resistance of refractory layer 20, it is preferable that above-mentioned pottery
Ceramic material includes TiN, TiC, TiCN, TiAlN, TiSiN, Al2O3、TiCrAlN、Si3N4It is any one or more of with ZrO, but
It is not limited to above-mentioned preferred type, those skilled in the art can carry out according to type of the prior art to above-mentioned ceramic material
Rational choice；And, it is preferable that above-mentioned cermet material includes oxide base cermet, carbide-base ceramics, nitrogen
Compound based ceramic metal, boride-base cerment and silicide based ceramic metal are any one or more of.Above-mentioned refractory layer
20 can be the multilayered structure for being covered in 10 side of cBN material layer, at this point, each layer refractory layer 20 can choose different ceramic materials
Material and/or cermet material.
In the above-mentioned PcBN composite sheet of the utility model, formed cBN material layer 10 material may include cBN powder and
Bonding agent specifically to form above-mentioned cBN material layer 10 by mixing and suppressing by raw materials such as cBN powder and bonding agents.It is preferred that
Ground, above-mentioned bonding agent include vitrified bond and/or metallic bond.Those skilled in the art can select according to actual needs
Any one of vitrified bond and metallic bond or two kinds of bonding agents are used in combination, when selecting single bonding agent, due to
Metallic bond good toughness intensity is high, to make to be not easy to occur crushing knife phenomenon in process；And use vitrified bond then
It is able to solve the shortcomings that softening and wearability are deteriorated under metallic bond high temperature；When two kinds of bonding agents of simultaneous selection, pass through two
Kind bonding agent is complementary, can not only improve impact resistance, toughness and intensity, avoid the occurrence of crushing knife phenomenon, additionally it is possible to avoid high temperature
Softening has excellent wearability.It is further preferable that metallic bond can be used when cBN content higher (80% or more), and
Vitrified bond is used when cBN content is lower.Those skilled in the art can be according to ceramic material and/or cermet material
Specific type carries out Rational choice to the type of above-mentioned vitrified bond and/or metallic bond.
In the above-mentioned PcBN composite sheet of the utility model, it is preferable that in the refractory layer 20 or multi-layered layer 20 of single layer
The one layer of refractory layer 20 contacted with cBN material layer 10 includes transition refractory layer 210 and heat-resistant material layer 220, heat-resistant material layer 220
The surface of separate 10 side of cBN material layer of transition refractory layer 210 is set, as shown in Figure 1.Above-mentioned transition refractory layer 210 is
By will be formed after heat-resisting green body and the pressure sintering of cBN green body, in pressure sintering process close to cBN green body in heat-resisting green body
Some materials (predominantly ceramic material and/or cermet material) and cBN green body in close to heat-resisting green body some materials
(predominantly cBN can also include bonding agent) Reaction-diffusion terms, so that is formed has ceramic material and/or cermet material
Material, and the transition refractory layer 210 with cBN material, by formed above-mentioned transition refractory layer 210 can make cBN material layer 10 with
Combination between refractory layer 20 is more secured.
In the above-mentioned PcBN composite sheet of the utility model, it is preferable that refractory layer 20 with a thickness of 0.1~0.5mm.Pass through
It is excellent resistance to that the thickness limit of refractory layer 20 can not only be guaranteed to PcBN composite sheet has in above-mentioned preferred parameter area
It is hot, additionally it is possible to guarantee that the product operations such as the cutter processed by PcBN composite sheet are light.
In the above-mentioned PcBN composite sheet of the utility model, PcBN composite sheet can also include being set to cBN material layer 10
20 side of separate refractory layer alloy-layer.While cBN material layer adds at least one layer of refractory layer, in cBN material layer
A laminated layer gold is added to further improve the strong of PcBN composite sheet to constitute alloy-cBN- ceramic structure composite sheet again below
Degree.
Another aspect according to the present utility model additionally provides a kind of preparation method of PcBN composite sheet, including following step
It is rapid: at least one layer of heat-resisting green body being set on cBN green body and is sintered, cBN material layer 10 and at least one layer of refractory layer are obtained
20, each heat-resisting green body of layer includes ceramic material and/or cermet material.PcBN composite sheet obtained above is as shown in Figure 1.
In the above preparation method, heat-resisting due to being formed using the raw material for including ceramic material and/or cermet material
Layer, to enable above-mentioned refractory layer heat resistance with higher, inoxidizability, hardness and strength.By above-mentioned PcBN composite sheet
The products such as cutter are welded and are processed as with alloy substrate, and the flank of settable cutter is made of cBN, and rake face is mainly by heat-resisting
Layer is constituted.At this point, cutter flank shows as the high rigidity and high-wearing feature of cBN；Rake face shows as the heat-resisting of ceramic material
Property.In the case where not influencing cBN service performance, heat resistance is improved, to effectively improve cBN cutting-tool's used life, is mentioned
High processing efficiency reduces production cost.
Above-mentioned preparation method can also include the steps that forming cBN green body, at this point, in a preferred embodiment.
The step of forming above-mentioned cBN green body includes following procedure: the first raw material including cBN powder and bonding agent mixed and suppressed,
To obtain cBN green body.Those skilled in the art can according to the prior art to above-mentioned compacting formed the process conditions of cBN green body into
Row reasonable set, details are not described herein.
In above-mentioned preferred embodiment, it is preferable that above-mentioned bonding agent includes vitrified bond and/or metal bonding
Agent.Those skilled in the art can select any one of vitrified bond and metallic bond or two kinds of knots according to actual needs
Mixture is used in combination, when selecting single bonding agent, since metallic bond good toughness intensity is high, to make in process not
It is easy to appear crushing knife phenomenon；And it is then able to solve and is softened under metallic bond high temperature and wearability variation using vitrified bond
Disadvantage；When two kinds of bonding agents of simultaneous selection, by two kinds of bonding agent complementations, impact resistance, toughness and strong can not only be improved
Degree, avoids the occurrence of crushing knife phenomenon, additionally it is possible to avoid hot mastication, have excellent wearability.It is further preferable that above-mentioned first is former
The mass percentage of bonding agent is 5~60% in material.Those skilled in the art can be according to ceramic material and/or cermet
The specific type of material carries out Rational choice to the type of above-mentioned vitrified bond and/or metallic bond.
Above-mentioned preparation method can also include the steps that forming heat-resisting green body, at this point, in a preferred embodiment,
The step of forming above-mentioned heat-resisting green body includes following procedure: will include the second raw material of ceramic material and/or cermet material
It mixes and suppresses, to obtain heat-resisting green body.Those skilled in the art can form heat-resisting base to above-mentioned compacting according to the prior art
The process conditions of body carry out reasonable set, and details are not described herein.
In above-mentioned preferred embodiment, in order to improve the heat resistance of refractory layer 20, it is preferable that above-mentioned ceramic material packet
Include TiN, TiC, TiCN, TiAlN, TiSiN, Al2O3、TiCrAlN、Si3N4It is any one or more of with ZrO, but be not limited to
Above-mentioned preferred type, those skilled in the art can rationally be selected according to type of the prior art to above-mentioned ceramic material
It takes；And, it is preferable that above-mentioned cermet material includes oxide base cermet, carbide-base ceramics, nitride base
Cermet, boride-base cerment and silicide based ceramic metal are any one or more of.
In a preferred embodiment, pressure sintering is carried out to heat-resisting green body and cBN blank sintering, includes to be formed
The refractory layer 20 of transition refractory layer 210 and heat-resistant material layer 220, as shown in Figure 1, above-mentioned transition refractory layer 210 further includes at this time
CBN material.By by heat-resisting green body and the pressure sintering of cBN green body, close to cBN green body in heat-resisting green body in pressure sintering process
Some materials (predominantly ceramic material and/or cermet material) and cBN green body in close to heat-resisting green body some materials
(predominantly cBN can also include bonding agent) Reaction-diffusion terms, so that is formed has ceramic material and/or cermet material
Material, and the transition refractory layer 210 with cBN material, by formed above-mentioned transition refractory layer 210 can make cBN material layer 10 with
Combination between refractory layer 20 is more secured.
In above-mentioned preferred embodiment, in order to further increase the combination between cBN material layer 10 and refractory layer 20
Power, the preferably temperature of pressure sintering are 1200~1700 DEG C；Also, it is preferred that the pressure of pressure sintering is 5~7GPa.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
Since the PcBN composite sheet includes cBN material layer and at least one layer of refractory layer for being covered in cBN material layer, and
The material for forming each layer refractory layer includes ceramic material and/or cermet material, thus enable above-mentioned refractory layer have compared with
High heat resistance, inoxidizability, hardness and strength.Above-mentioned PcBN composite sheet and alloy substrate such as welds and are processed as cutter at the production
The flank of product, settable cutter is made of cBN, and rake face is mainly made of refractory layer.At this point, cutter flank is shown as
The high rigidity and high-wearing feature of cBN；Rake face shows as the heat resistance of ceramic material.The case where not influencing cBN service performance
Under, heat resistance is improved, to effectively improve cBN cutting-tool's used life, processing efficiency is improved, reduces production cost.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of PcBN composite sheet, which is characterized in that including cBN material layer (10) and be covered in the cBN material layer (10)
On at least one layer of refractory layer (20), and each layer refractory layer (20) be ceramic material layer, cermet material layer or ceramics
The composite layer of material and cermet material composition.
2. PcBN composite sheet according to claim 1, which is characterized in that the ceramic material layer be selected from TiN layer, TiC layer,
TiCN layer, TiAlN layers, TiSiN layers, Al2O3Layer, TiCrAlN layers, Si3N4Layer and ZrO layers it is any one or more of.
3. PcBN composite sheet according to claim 1, which is characterized in that the cermet material layer choosing autoxidisable substance base
Cermet coating, carbide-base ceramics layer, nitride based ceramic metal layer, boride-base cerment layer and silicide base
Cermet coating is any one or more of.
4. PcBN composite sheet according to claim 1, which is characterized in that resistance to described in refractory layer described in single layer (20) or multilayer
The one layer of refractory layer (20) contacted in thermosphere (20) with the cBN material layer (10) includes transition refractory layer (210) and resistance to
Hot material layer (220), heat-resistant material layer (220) setting is in the transition refractory layer (210) far from the cBN material layer
(10) surface of side.
5. PcBN composite sheet according to any one of claim 1 to 4, which is characterized in that the cBN material layer (10)
Material is the composite layer being made of cBN and bonding agent.
6. PcBN composite sheet according to any one of claim 1 to 4, which is characterized in that the thickness of the refractory layer (20)
Degree is 0.1~0.5mm.
7. PcBN composite sheet according to any one of claim 1 to 4, which is characterized in that the PcBN composite sheet is also wrapped
Include the alloy-layer far from the refractory layer (20) side for being set to the cBN material layer (10).
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|---|---|---|---|
| CN201821210879.2U CN208801683U (en) | 2018-07-27 | 2018-07-27 | PcBN composite sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821210879.2U CN208801683U (en) | 2018-07-27 | 2018-07-27 | PcBN composite sheet |
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| CN208801683U true CN208801683U (en) | 2019-04-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757907A (en) * | 2018-07-27 | 2020-02-07 | 北京沃尔德金刚石工具股份有限公司 | PcBN composite sheet and preparation method thereof |
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2018
- 2018-07-27 CN CN201821210879.2U patent/CN208801683U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757907A (en) * | 2018-07-27 | 2020-02-07 | 北京沃尔德金刚石工具股份有限公司 | PcBN composite sheet and preparation method thereof |
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