CN113001418B - Ceramic bond of superhard abrasive tool, superhard abrasive tool and preparation method of superhard abrasive tool - Google Patents
Ceramic bond of superhard abrasive tool, superhard abrasive tool and preparation method of superhard abrasive tool Download PDFInfo
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- CN113001418B CN113001418B CN202110120723.5A CN202110120723A CN113001418B CN 113001418 B CN113001418 B CN 113001418B CN 202110120723 A CN202110120723 A CN 202110120723A CN 113001418 B CN113001418 B CN 113001418B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 34
- VAKIVKMUBMZANL-UHFFFAOYSA-N iron phosphide Chemical compound P.[Fe].[Fe].[Fe] VAKIVKMUBMZANL-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- FBMUYWXYWIZLNE-UHFFFAOYSA-N nickel phosphide Chemical compound [Ni]=P#[Ni] FBMUYWXYWIZLNE-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 15
- 238000007731 hot pressing Methods 0.000 claims abstract description 14
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 11
- 239000010432 diamond Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000011049 filling Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000003082 abrasive agent Substances 0.000 claims abstract description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000005245 sintering Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical group [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000011812 mixed powder Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical group 0.000 claims description 4
- 239000000178 monomer Substances 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 3
- 239000011324 bead Substances 0.000 claims description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- 229910052580 B4C Inorganic materials 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- 239000001099 ammonium carbonate Substances 0.000 claims description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 239000002932 luster Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005087 graphitization Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004814 ceramic processing Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006112 glass ceramic composition Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
- B24D3/18—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for porous or cellular structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A ceramic bond of a superhard abrasive tool, a superhard abrasive tool and a preparation method thereof, relating to the field of diamond tool (CBN tool) manufacturing; the adhesive comprises the following components in percentage by volume: 4-40% of superhard abrasive material; 0% -5% of pore-forming agent; 6% -50% of filler; 15% -68% of fine ceramic binder; the low-temperature binder in the fine ceramic bond comprises micro-nano iron phosphide powder and/or-200 # nickel phosphide powder; the sum of the volume percentages of the components is 100 percent. The components of the fine ceramic bond designed by the invention are subjected to processing technologies such as material mixing, die filling, pressing, heating and hot pressing, demoulding and finish machining, and the manufactured superhard abrasive tool has high hardness, high grinding tool strength and good tool applicability. The invention adopts micro-nano iron phosphide powder and/or-200 # nickel phosphide powder as main binding components in the fine ceramic binding agent, can realize the effective combination of the superhard abrasive and the binding agent, and realizes the optimal use state of the diamond tool.
Description
Technical Field
The invention belongs to the field of superhard material product processing and manufacturing, and particularly relates to a superhard abrasive tool of a ceramic bond and a preparation method thereof.
Background
Diamond and cubic boron nitride are collectively referred to as superabrasive materials. The superabrasive material is formed into a superhard tool in the presence of a bond, such tools commonly referred to collectively as diamond tools. The bonding agent used for manufacturing diamond tools is commonly metal bonding agent, ceramic bonding agent and resin bonding agent. The metal bond mainly comprises simple substance metal or metal alloy components, and can be added with partial nonmetallic material additives; the resin binder mainly comprises high polymer resin material components, and partial nonmetallic components or metal components are added according to the use performance of the tool so as to adjust the comprehensive performance of the binder.
The ceramic material performance is one of the binding materials most suitable for manufacturing the diamond tool, and the special strength, hardness and brittleness can ensure that the diamond tool has moderate sharpness and wear resistance, and the tool has good shape retention and high cost performance in processing. At present, a large number of ceramic bonding agents are used in the market, wherein low-temperature oxide ceramic materials are used as bonding agents and microcrystalline glass ceramic materials are used as bonding agents. The diamond or cubic boron nitride superhard grinding tool manufactured by the bonding agent has good sharpness and good shape retention of the grinding tool, and the grinding tool is mainly used in the field of precision machining of high-precision metal and alloy parts. Due to the limitation of physical and chemical performance indexes of the materials, the materials have the advantages of higher sintering temperature, poor technological performance, high molding difficulty, low molding strength and low production yield. The tool is very limited in application range, and is difficult to be widely used in the stone processing, glass processing and engineering ceramic processing fields.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the purposes of the invention is to provide a ceramic bond of a superhard abrasive tool, which has good bonding property and can improve the strength of the superhard abrasive tool.
The second purpose of the invention is to provide a superhard abrasive tool of ceramic bond, which has high tool strength, low production cost, high production yield and good adaptability, and can be widely used in the fields of stone processing, glass processing and engineering ceramic processing.
The invention also provides a preparation method of the superhard abrasive tool of the ceramic bond.
One of the purposes of the invention is realized by adopting the following technical scheme:
a ceramic bond for a superabrasive tool comprising the following components in percent by volume:
0% -5% of pore-forming agent;
6% -50% of filler;
15% -68% of ceramic binder;
the ceramic binder is micro-nano iron phosphide powder and/or-200 # nickel phosphide powder;
the sum of the volume percentages of the components is 100 percent.
Further, the pore-forming agent is hollow glass beads and/or ammonium bicarbonate and the like.
Further, the filler is a carbide-based filler or a composition composed of a carbide-based filler and a metal-based filler.
Further, the carbide-based abrasive is silicon carbide and/or boron carbide.
Further, the metal filler is a metal oxide and/or a metal monomer;
the metal oxide is alumina and/or silicon oxide;
the metal monomer is iron powder and/or nickel powder.
Further, the binder in the ceramic bond consists of micro-nano iron phosphide powder and-200 # nickel phosphide powder in a mass ratio of 1:0-3.
The second purpose of the invention is realized by adopting the following technical scheme:
a ceramic bond superabrasive tool comprising the following components in volume percent:
4-40% of superhard abrasive material;
and the balance of ceramic bonding agent.
Further, the super abrasive is diamond and/or cubic boron nitride.
Further, the alloy comprises the following components in percentage by volume:
the sum of the volume percentages of the components is 100 percent.
The third purpose of the invention is realized by adopting the following technical scheme:
a method of making a ceramic bond superabrasive tool, comprising the steps of:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, the mixture is put into a forming die and pressed at normal temperature, and the pressure is 100MPa-300MPa.
S3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming at 760-820 ℃ and 50-300MPa, wherein the heating and pressurizing are synchronously carried out.
S4, cooling the die, and demoulding, finishing and packaging to obtain the superhard abrasive tool.
Compared with the prior art, the invention has the beneficial effects that:
according to the ceramic bond of the superhard abrasive tool, micro-nano iron phosphide powder and/or nickel phosphide powder are used as ceramic bond components, and phosphide can reduce the sintering temperature of the manufacturing process of the superhard abrasive tool, so that the phenomenon that the superhard abrasive is corroded by metal elements to generate graphitization at high temperature is avoided; meanwhile, the iron phosphide powder and the nickel phosphide powder can realize the effective combination of the superhard abrasive and the filler, and the bonding agent has strong bonding force, and the obtained tool has strong toughness and high wear resistance.
According to the ceramic bond superhard abrasive tool, the hardness of the manufactured superhard abrasive tool is high through reasonable proportion of the components, and the Mohs hardness reaches HRB85-HRB 95; the superhard grinding tool has good use adaptability, can meet the requirements of processing strength under rough working conditions such as stone, glass, engineering ceramics and the like, and has stable processing performance.
The preparation method of the ceramic bond superhard abrasive tool has the advantages of low production cost, high production yield, low hot-press sintering forming temperature and capability of avoiding graphitization phenomenon caused by corrosion of the superhard abrasive by metal elements at high temperature; the material combination is in a small amount of liquid phase at the process temperature, the sintering process is mainly completed by intermolecular solid phase diffusion, and the synchronous operation of temperature rise and pressurization can enable the sintering process to be completed rapidly and thoroughly.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
Example 1
The ceramic bond superhard abrasive tool of the embodiment comprises the following components in percentage by volume:
5% of diamond;
silicon carbide 43%;
52% of ceramic binder.
The ceramic binder consists of micro-nano iron phosphide powder and-200 # nickel phosphide powder in a mass ratio of 1:1.
Wherein, micro-nano iron phosphide powder: the phosphorus content is 5-18% by mass percent; the content of iron phosphide is not less than 99.5%; particle size d50+.15 μ;
-200# nickel phosphide powder: the phosphorus content is 5-18% by mass percent; the content of nickel phosphide is not less than 99.5%; particle size-200 #;
silicon carbide powder: the SiC content is not less than 99%; free carbon less than 0.2%; fe (Fe) 2 O 3 Less than 0.2%; green luster crystals are formed.
The preparation method of the ceramic bond superhard abrasive tool comprises the following steps:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 100MPa.
S3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming under the technological conditions of 760-820 ℃ and 100MPa, wherein the hot-pressing process must ensure that the temperature and pressure rise are synchronously carried out.
And S4, cooling the die, and performing demoulding and finish machining to obtain the square grinding tool grinding head with the length, width and height of 24 x 10 x 20 mm.
Example 2
The ceramic bond superhard abrasive tool of the embodiment comprises the following components in percentage by volume:
the ceramic binder is micro-nano iron phosphide powder.
Wherein, micro-nano iron phosphide powder: the phosphorus content is 5-18% by mass percent; the content of iron phosphide is not less than 99.5%; particle size d50+.15 μ;
silicon carbide powder: the SiC content is not less than 99%; free carbon less than 0.2%; fe (Fe) 2 O 3 Less than 0.2%; green luster crystals are formed.
The preparation method of the ceramic bond superhard abrasive tool comprises the following steps:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 200MPa.
S3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming under the hot-pressing process with the temperature of 760-820 ℃ and the pressure of 200MPa, wherein the hot-pressing process must ensure that the temperature rise and the pressure rise are synchronously carried out.
S4, cooling the die, and performing demoulding and finish machining to obtain the circular grinding tool grinding head with the outer circle diameter of 200 mm, the inner circle diameter of 180 mm and the height of 12 mm.
Example 3
The ceramic bond superhard abrasive tool of the embodiment comprises the following components in percentage by volume:
the ceramic binder consists of micro-nano iron phosphide powder and-200 # nickel phosphide powder in a mass ratio of 1:3.
Wherein, micro-nano iron phosphide powder: the phosphorus content is 5-18% by mass percent; the content of iron phosphide is not less than 99.5%; particle size d50+.15 μ;
-200# nickel phosphide powder: the phosphorus content is 5-18% by mass percent; the content of nickel phosphide is not less than 99.5%; particle size-200 #;
silicon carbide powder: the SiC content is not less than 99%; free carbon less than 0.2%; fe (Fe) 2 O 3 Less than 0.2%; green luster crystals are formed.
The preparation method of the ceramic bond superhard abrasive tool comprises the following steps:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 300MPa.
S3, placing the (charging mould) into a heating furnace, and hot-pressing, sintering and forming under the technological conditions of 760-820 ℃ and 200MPa, wherein the hot-pressing process must ensure that the temperature and pressure rise are synchronously carried out.
S4, cooling the die, and performing demoulding and finish machining to obtain the circular grinding tool grinding head with the outer circle diameter of 250 mm, the inner circle diameter of 200 mm and the height of 15 mm.
Example 4
The ceramic bond superhard abrasive tool of the embodiment comprises the following components in percentage by volume:
the ceramic binder consists of micro-nano iron phosphide powder and-200 # nickel phosphide powder in a mass ratio of 1:1.5.
Wherein, micro-nano iron phosphide powder: the phosphorus content is 5-18% by mass percent; the content of iron phosphide is not less than 99.5%; particle size d50+.15 μ;
-200# nickel phosphide powder: the phosphorus content is 5-18% by mass percent; the content of nickel phosphide is not less than 99.5%; particle size-200 #;
silicon carbide powder: the SiC content is not less than 99%; free carbon less than 0.2%; fe (Fe) 2 O 3 Less than 0.2%; green luster crystals are formed.
The preparation method of the superhard abrasive tool containing the ceramic bond comprises the following steps:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 300MPa.
S3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming under the technological conditions of 760-820 ℃ and 200MPa, wherein the hot-pressing process must ensure that the temperature and pressure rise are synchronously carried out.
S4, cooling the die, and performing demoulding and finish machining to obtain the circular grinding tool grinding head with the outer circle diameter of 300 mm, the inner circle diameter of 220 mm and the height of 18 mm.
Example 5
Other matters of this embodiment are the same as those of embodiment 4, except that: in example 5, no glass beads were added, and sintering voids were reserved by controlling the density of the sintered bit, and the pore diameter of the voids was 0.1 to 10. Mu.m. The gap has the functions of containing scraps, removing chips and enhancing heat dissipation in the grinding process of the superhard abrasive tool, and the grinding effect of a workpiece is improved.
Comparative example 1
The ceramic bond superhard abrasive tool of the embodiment comprises the following components in percentage by volume:
wherein, silicon carbide powder: the SiC content is not less than 99%; free carbon less than 0.2%; fe (Fe) 2 O 3 Less than 0.2%; green luster crystals are formed.
The preparation method of the ceramic bond superhard abrasive tool comprises the following steps:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 300MPa.
S3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming under the process conditions of 1100 ℃ and 200MPa, wherein the hot-pressing process ensures that the temperature and the pressure rise are synchronously carried out.
S4, cooling the die, and performing demoulding and finish machining to obtain the circular grinding tool grinding head with the outer circle diameter of 300 mm, the inner circle diameter of 220 mm and the height of 18 mm.
Performance detection
Examples 1-5 and comparative example 1 were tested using the mohs hardness test, HRB scale, and the data results are shown in table 1.
TABLE 1 Performance data
As shown in Table 1, compared with the alumina of comparative example 1 which is used as a binder, the invention adopts micro-nano iron phosphide powder and/or-200 # nickel phosphide powder as ceramic binders, and has higher hardness with Mohs hardness of HRB85-HRB 98. The phosphide can reduce the sintering temperature of the superhard abrasive tool and avoid graphitization phenomenon caused by corrosion of the superhard abrasive by metal elements at high temperature; meanwhile, the iron phosphide powder and the nickel phosphide powder can realize the combination of the superhard abrasive and the filler, have strong binding force and high toughness and wear resistance, and can be used for manufacturing an integral grinding tool grinding head with the diameter of 300 mm.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (9)
1. A ceramic bond superabrasive tool, comprising the following components in volume percent:
4-40% of superhard abrasive material;
ceramic bond balance;
the ceramic bond comprises the following components in percentage by volume:
0% -5% of pore-forming agent;
6% -50% of filler;
15% -68% of ceramic binder;
the ceramic binder is micro-nano iron phosphide powder and/or-200 # nickel phosphide powder;
the sum of the volume percentages of the components is 100 percent.
2. The ceramic bond of a superabrasive tool of claim 1, wherein: the pore-forming agent is hollow glass beads and/or ammonium bicarbonate and the like.
3. The ceramic bond of a superabrasive tool of claim 1, wherein: the filler is a carbide-based filler or a composition consisting of a carbide-based filler and a metal-based filler.
4. A ceramic bond for a superabrasive tool as recited in claim 3, wherein: the carbide-based abrasive is silicon carbide and/or boron carbide.
5. A ceramic bond for a superabrasive tool as recited in claim 3, wherein: the metal filler is metal oxide and/or metal monomer;
the metal oxide is alumina and/or silicon oxide;
the metal monomer is iron powder and/or nickel powder.
6. The ceramic bond of a superabrasive tool of claim 1, wherein: the binder in the ceramic bond consists of micro-nano iron phosphide powder and-200 # nickel phosphide powder in a mass ratio of 1:0-3.
7. A ceramic bond superabrasive tool in accordance with claim 1, wherein: the super-abrasive is diamond and/or cubic boron nitride.
8. A ceramic bond superabrasive tool in accordance with claim 1 or 7, wherein: comprises the following components in percentage by volume:
the sum of the volume percentages of the components is 100 percent.
9. A method of preparing a superabrasive tool with a ceramic bond as recited in any of claims 7-8, comprising the steps of:
s1, preparing and mixing raw materials with the formula amount to prepare mixed powder;
s2, filling the mixture into a forming die, and pressing at normal temperature under the pressure of 100-300 MPa;
s3, placing the charging mould into a heating furnace, and hot-pressing, sintering and forming at 760-820 ℃ and 50-300MPa, wherein the temperature and the pressure are synchronously raised;
s4, cooling the die, and demoulding, finishing and packaging to obtain the superhard abrasive tool.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB887255A (en) * | 1959-03-06 | 1962-01-17 | Norton Grinding Wheel Co Ltd | Metal bonded abrasive composition |
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| CN109015419A (en) * | 2018-08-02 | 2018-12-18 | 大连工业大学 | A kind of LAS microcrystalline glass in series abrasive material combination agent prescription, preparation method and application |
| CN111716258A (en) * | 2020-06-06 | 2020-09-29 | 南京惠诚工具制造有限公司 | Preparation method of brazing filler metal alloy coated ceramic bond superhard abrasive |
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2021
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|---|---|---|---|---|
| GB887255A (en) * | 1959-03-06 | 1962-01-17 | Norton Grinding Wheel Co Ltd | Metal bonded abrasive composition |
| US4157897A (en) * | 1977-04-14 | 1979-06-12 | Norton Company | Ceramic bonded grinding tools with graphite in the bond |
| US5011510A (en) * | 1988-10-05 | 1991-04-30 | Mitsui Mining & Smelting Co., Ltd. | Composite abrasive-articles and manufacturing method therefor |
| TW442364B (en) * | 1996-11-26 | 2001-06-23 | Cabot Microelectronics Corp | Composition and method for polishing rigid disks |
| WO2005056238A1 (en) * | 2003-12-15 | 2005-06-23 | Junfeng Gao | Manufacture method of super-hard grinding tool containing metallic or ceramic binder |
| JP2010089177A (en) * | 2008-10-06 | 2010-04-22 | Mitsubishi Heavy Ind Ltd | Superabrasive grain tool |
| CN101913122A (en) * | 2010-07-21 | 2010-12-15 | 安泰科技股份有限公司 | Method for preparing ceramic bond super-hard abrasive tool |
| CN108098603A (en) * | 2017-12-30 | 2018-06-01 | 新乡市中开科技发展有限公司 | A kind of polishing train special grinding wheel containing super hard abrasive cermet bonding agent and preparation method thereof |
| CN109015419A (en) * | 2018-08-02 | 2018-12-18 | 大连工业大学 | A kind of LAS microcrystalline glass in series abrasive material combination agent prescription, preparation method and application |
| CN111716258A (en) * | 2020-06-06 | 2020-09-29 | 南京惠诚工具制造有限公司 | Preparation method of brazing filler metal alloy coated ceramic bond superhard abrasive |
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| CN113001418A (en) | 2021-06-22 |
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