CN109097650A - Wear-resisting PCD composite sheet and preparation method thereof - Google Patents
Wear-resisting PCD composite sheet and preparation method thereof Download PDFInfo
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- CN109097650A CN109097650A CN201811022030.7A CN201811022030A CN109097650A CN 109097650 A CN109097650 A CN 109097650A CN 201811022030 A CN201811022030 A CN 201811022030A CN 109097650 A CN109097650 A CN 109097650A
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- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007864 aqueous solution Substances 0.000 claims abstract description 27
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 23
- 239000010432 diamond Substances 0.000 claims abstract description 23
- 239000007767 bonding agent Substances 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- 150000003746 yttrium Chemical class 0.000 claims abstract description 16
- 238000000498 ball milling Methods 0.000 claims abstract description 15
- 159000000013 aluminium salts Chemical class 0.000 claims abstract description 14
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims abstract description 14
- 150000002815 nickel Chemical class 0.000 claims abstract description 14
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 14
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004327 boric acid Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- -1 zirconates Chemical class 0.000 claims abstract description 5
- 235000019441 ethanol Nutrition 0.000 claims description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 13
- 230000032683 aging Effects 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 235000002639 sodium chloride Nutrition 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 3
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical group S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims description 3
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 claims description 3
- 229940009827 aluminum acetate Drugs 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 3
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- UTEFBSAVJNEPTR-RGEXLXHISA-N loprazolam Chemical compound C1CN(C)CCN1\C=C/1C(=O)N2C3=CC=C([N+]([O-])=O)C=C3C(C=3C(=CC=CC=3)Cl)=NCC2=N\1 UTEFBSAVJNEPTR-RGEXLXHISA-N 0.000 claims 1
- 229960003019 loprazolam Drugs 0.000 claims 1
- 150000003754 zirconium Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of wear-resisting PCD composite sheets and preparation method thereof, the preparation method includes: 1) to disperse nano silica, hydrochloric acid in the aqueous solution of alcohol, it is subsequently added into sodium salt, aluminium salt, boric acid, zirconates, yttrium salt, nickel salt, butyl titanate mixing, then lye is added dropwise and stirs, is finally aged, is dry to obtain xerogel；2) xerogel is heat-treated to obtain heat-treated products；3) heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder are subjected to ball milling to obtain bonding agent；4) by diamond dust, bonding agent in 1600-1800 DEG C, 2 × 1011Pa‑10×1011Sintering is under Pa to be made the high rigidity PCD composite sheet.The PCD composite sheet has excellent wearability, while the preparation method has the advantages that process is simply and easy to operate.
Description
Technical field
The present invention relates to PCD cutters, and in particular, to a kind of wear-resisting PCD composite sheet and its preparation side.
Background technique
Diamond is applied to machining as a kind of ultrahard cutting tool material and has centuries history.Cutter development course,
From late nineteenth century to the twentieth century phase, cutter material is using high-speed steel as main representative；Nineteen twenty-seven, Germany developed hard first
Alloy cutter material is simultaneously widely applied；Nineteen fifties, the U.S. of Sweden are respectively synthesized out diamond, cutting
It is to represent period that cutter, which is stepped into from this with superhard material,.Nineteen seventies, people are synthesized using high-pressure synthesis technology
Polycrystalline diamond (PCD) solves the problems, such as natural diamond rare numbers, expensive, expands diamond cutter application range
Open up the multiple fields such as Aeronautics and Astronautics, automobile, electronics, stone material.
Diamond cutter has the characteristics such as hardness is high, compression strength is high, thermal conductivity and wearability are good, can high-speed cutting acquisition
Very high manufacturing accuracy processing efficiency.The above-mentioned characteristic of diamond cutter is determined by diamond crystal state.Diamond crystal, carbon atom
Four valence electrons press tetrahedral structure bonding, and each carbon atom and four adjacent atoms form covalent bond, and then form diamond
Structure, the structure binding force directionality is very strong, so that diamond be made to have extreme hardness.Since polycrystalline diamond PCD structure takes
To different fine-particle diamond sintered body, although joined bonding agent, hardness and wearability are still below single-crystal diamond.
Summary of the invention
The object of the present invention is to provide a kind of wear-resisting PCD composite sheet and preparation method thereof, which has excellent
Wearability, while the preparation method has the advantages that process is simply and easy to operate.
To achieve the goals above, the present invention provides a kind of preparation methods of wear-resisting PCD composite sheet, comprising:
1) disperse nano silica, hydrochloric acid in the aqueous solution of alcohol, be subsequently added into sodium salt, aluminium salt, boric acid, zirconates, yttrium salt,
Then nickel salt, butyl titanate mixing are added dropwise lye and stir, be finally aged, be dry to obtain xerogel；
2) xerogel is heat-treated to obtain heat-treated products；
3) heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder are subjected to ball milling to obtain bonding agent；
4) by diamond dust, bonding agent in 1600-1800 DEG C, 2 × 1011Pa-10×1011Sintering is under Pa to be made the height
Hardness PCD composite sheet.
The present invention also provides a kind of wear-resisting PCD composite sheet, which is prepared by above-mentioned preparation method
And it obtains.
In above-mentioned technical proposal, the present invention pass through first sol-gel method be made xerogel, then by heat treatment so that
Xerogel resolves into the complex being made of many oxide, finally by heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder
It is combined to form bonding agent, finally bonding agent, diamond dust is calcined, PCD composite sheet is made；The bonding agent enables to
PCD composite sheet obtained has excellent wearability, while the preparation method has the advantages that process is simply and easy to operate.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of preparation methods of wear-resisting PCD composite sheet, comprising:
1) disperse nano silica, hydrochloric acid in the aqueous solution of alcohol, be subsequently added into sodium salt, aluminium salt, boric acid, zirconates, yttrium salt,
Then nickel salt, butyl titanate mixing are added dropwise lye and stir, be finally aged, be dry to obtain xerogel；
2) xerogel is heat-treated to obtain heat-treated products；
3) heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder are subjected to ball milling to obtain bonding agent；
4) by diamond dust, bonding agent in 1600-1800 DEG C, 2 × 1011Pa-10×1011Sintering is under Pa to be made the height
Hardness PCD composite sheet.
In step 1) of the invention, the dosage of each material can select in a wide range, but in order to further mention
The wearability of PCD composite sheet made from height, it is preferable that in step 1), nano silica, sodium salt, aluminium salt, boric acid, zirconates,
Yttrium salt, nickel salt, butyl titanate molar ratio be 1:0.4-0.6:0.7-0.9:0.2-0.4:0.05-0.15:0.08-0.12:
0.1-0.3:0.25-0.35.
In step 1) of the invention, hydrochloric acid, the aqueous solution of alcohol, lye dosage can select in a wide range, but
The wearability in order to further increase PCD composite sheet obtained, it is preferable that in step 1), nano silica, hydrochloric acid,
The aqueous solution of alcohol, lye amount ratio be 1mmol:2-3mL:5-10mL:4-6mL, and in the aqueous solution of alcohol alcohol volume fraction
It is 4-5 for 30-40%, the pH of hydrochloric acid, the pH of lye is 11-13.
In step 1) of the invention, the type of each material can select in a wide range, but in order to further mention
The wearability of PCD composite sheet made from height, it is preferable that in step 1), the alcohol of the aqueous solution of alcohol is selected from ethyl alcohol, methanol, propyl alcohol
At least one of with isopropanol；Lye is selected from least one of potassium hydroxide aqueous solution, sodium hydrate aqueous solution；Sodium salt choosing
From at least one of sodium chloride, sodium sulphate, sodium nitrate；Aluminium salt is selected from least one of aluminum nitrate, aluminium chloride, aluminum acetate；
Zirconates is selected from least one of zirconium nitrate, citric acid zirconates；Yttrium salt is selected from yttrium nitrate, three (radical) yttrium salts, fluoroform
At least one of alkyl sulfonic acid yttrium；Nickel salt is selected from least one of nickel nitrate, nickel sulfate, nickel chloride.
In step 1) of the invention, the condition of ageing can select in a wide range, but in order to further increase
The wearability of PCD composite sheet obtained, it is preferable that in step 1), ageing meets the following conditions: Aging Temperature is 25-35 DEG C,
Digestion time is 18-24h.
In step 1) of the invention, dry condition can select in a wide range, but in order to further increase
The wearability of PCD composite sheet obtained, in step 1), drying meets the following conditions: drying temperature is 100-110 DEG C, dry
Time is 2-4h.
In step 1) of the invention, the mixed time can select in a wide range, but in order to further increase
The wearability of PCD composite sheet obtained, it is preferable that in step 1), the mixed time is 15-20min.
In step 2) of the invention, the condition of heat treatment can select in a wide range, but in order to further mention
The wearability of PCD composite sheet made from height, it is preferable that in step 2, heat treatment meets the following conditions: treatment temperature 510-
530 DEG C, the processing time is 6-10h.
In step 3) of the invention, the dosage of each material can select in a wide range, but in order to further mention
The wearability of PCD composite sheet made from height, it is preferable that in step 3), heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder
Weight ratio is 10:1-3:1.6-2:1.7-2.1:0.5-0.8.
In step 3) of the invention, the condition of ball milling can select in a wide range, but in order to further increase
The wearability of PCD composite sheet obtained, it is preferable that in step 3), ball milling meets the following conditions: the mass ratio of abrading-ball and material
For 20:0.8-1.2, revolving speed 1600-1800rpm, Ball-milling Time 40-60min.
In step 4) of the invention, the time of calcining can select in a wide range, but in order to further increase
The wearability of PCD composite sheet obtained, it is preferable that in step 4), the time of calcining is 12-15h；
In step 4) of the invention, the granularity of diamond dust can select in a wide range, but in order to further mention
The wearability of PCD composite sheet made from height, it is preferable that in step 4), the granularity of diamond dust is 2-4 μm.
The present invention also provides a kind of wear-resisting PCD composite sheet, which is prepared by above-mentioned preparation method
And it obtains.
The present invention will be described in detail by way of examples below.
1) it disperses nano silica, hydrochloric acid in the aqueous solution of alcohol (ethyl alcohol), is subsequently added into sodium salt (sodium chloride), aluminium
Salt (aluminum nitrate), boric acid, zirconates (zirconium nitrate), yttrium salt (yttrium nitrate), nickel salt (nickel nitrate), butyl titanate mixing 18min, so
Lye (potassium hydroxide aqueous solution) is added dropwise afterwards and stirs 18min, finally ageing (Aging Temperature is 30 DEG C, digestion time 20h),
Dry (drying temperature is 105 DEG C, drying time 3h) is to obtain xerogel；Wherein, nano silica, sodium salt, aluminium salt, boron
Acid, zirconates, yttrium salt, nickel salt, butyl titanate molar ratio be 1:0.5:0.8:0.3:0.1:0.1:0.2:0.30；Nano-silica
SiClx, hydrochloric acid, the aqueous solution of alcohol, lye amount ratio be 1mmol:2.5mL:8mL:5mL, and alcohol in the aqueous solution of the alcohol
Volume fraction is 35%, and the pH of the hydrochloric acid is 4.5, and the pH of the lye is 12；
2) xerogel is heat-treated (treatment temperature is 520 DEG C, and the processing time is 8h) to obtain heat-treated products；
3) by heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder according to the weight ratio row ball milling (mill of 10:2:1.8:1.9:0.7
The mass ratio of ball and material is 20:1, revolving speed 1700rpm, Ball-milling Time 50min) to obtain bonding agent A1.
Embodiment 2
1) it disperses nano silica, hydrochloric acid in the aqueous solution of alcohol (propyl alcohol), is subsequently added into sodium salt (sodium sulphate), aluminium salt
(aluminium chloride), boric acid, zirconates (citric acid zirconates), yttrium salt (three (radical) yttrium salts), nickel salt (nickel sulfate), butyl titanate
15min is mixed, lye (sodium hydrate aqueous solution) is then added dropwise and stirs 15min, (Aging Temperature is 25 DEG C, old for finally ageing
Changing the time is for 24 hours), dry (drying temperature is 100 DEG C, drying time 4h) to obtain xerogel；Wherein, nanometer titanium dioxide
Silicon, sodium salt, aluminium salt, boric acid, zirconates, yttrium salt, nickel salt, butyl titanate molar ratio be 1:0.4:0.7:0.2:0.05:0.08:
0.1:0.25；Nano silica, hydrochloric acid, the aqueous solution of alcohol, lye amount ratio be 1mmol:2mL:5mL:4mL, and it is described
The volume fraction of alcohol is 30% in the aqueous solution of alcohol, and the pH of the hydrochloric acid is 4, and the pH of the lye is 11；
2) xerogel is heat-treated (treatment temperature is 510 DEG C, and the processing time is 10h) to obtain heat-treated products；
3) by heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder according to the weight ratio row ball milling (mill of 10:1:1.6:1.7:0.5
The mass ratio of ball and material is 20:0.8, revolving speed 1600rpm, Ball-milling Time 60min) to obtain bonding agent A2.
Embodiment 3
1) it disperses nano silica, hydrochloric acid in the aqueous solution of alcohol (isopropanol), is subsequently added into sodium salt (sodium nitrate), aluminium salt
(aluminum acetate), boric acid, zirconates (citric acid zirconates), yttrium salt (trifluoromethayl sulfonic acid yttrium), nickel salt (nickel chloride), butyl titanate are mixed
20min is closed, lye (sodium hydrate aqueous solution) is then added dropwise and stirs 20min, (Aging Temperature is 35 DEG C, ageing for finally ageing
Time is 18h), dry (drying temperature is 110 DEG C, drying time 2h) to obtain xerogel；Wherein, nano silica,
Sodium salt, aluminium salt, boric acid, zirconates, yttrium salt, nickel salt, butyl titanate molar ratio be 1:0.6:0.9:0.4:0.15:0.12:
0.3:0.35；Nano silica, hydrochloric acid, the aqueous solution of alcohol, lye amount ratio be 1mmol:3mL:10mL:6mL, and it is described
The volume fraction of alcohol is 40% in the aqueous solution of alcohol, and the pH of the hydrochloric acid is 5, and the pH of the lye is 13；
2) xerogel is heat-treated (treatment temperature is 530 DEG C, and the processing time is 6h) to obtain heat-treated products；
3) by heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder according to the weight ratio row ball milling (abrading-ball of 10:3:2:2.1:0.8
Mass ratio with material is 20:1.2, revolving speed 1800rpm, Ball-milling Time 40min) to obtain bonding agent A3.
Application examples 1
By granularity be 2 μm of diamond dusts, above-mentioned bonding agent according to the weight ratio of 1:5 in 1700 DEG C, 7 × 1011It is sintered under Pa
Then 13h detects the thermal coefficient of PCD composite sheet, the results are shown in Table 1 so that wear-resisting PCD composite sheet is made.
Table 1
| Bonding agent | A1 | A2 | A3 |
| Thermal coefficient (W/mK) | 786 | 779 | 769 |
Wherein, thermal coefficient is higher, is more avoided that the abrasion of PCD composite sheet, and then improve the wearability of PCD composite sheet.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of preparation method of wear-resisting PCD composite sheet characterized by comprising
1) disperse nano silica, hydrochloric acid in the aqueous solution of alcohol, be subsequently added into sodium salt, aluminium salt, boric acid, zirconates, yttrium salt,
Then nickel salt, butyl titanate mixing are added dropwise lye and stir, be finally aged, be dry to obtain xerogel；
2) xerogel is heat-treated to obtain heat-treated products；
3) heat-treated products, zinc powder, molybdenum powder, titanium valve and aluminium powder are subjected to ball milling to obtain bonding agent；
4) by diamond dust, bonding agent in 1600-1800 DEG C, 2 × 1011Pa-10×1011It is sintered under Pa to be made described high hard
Spend PCD composite sheet.
2. preparation method according to claim 1, wherein in step 1), the nano silica, sodium salt, aluminium salt,
Boric acid, zirconates, yttrium salt, nickel salt, butyl titanate molar ratio be 1:0.4-0.6:0.7-0.9:0.2-0.4:0.05-0.15:
0.08-0.12:0.1-0.3:0.25-0.35.
3. preparation method according to claim 1, wherein in step 1), the nano silica, hydrochloric acid, alcohol
Aqueous solution, lye amount ratio be 1mmol:2-3mL:5-10mL:4-6mL, and in the aqueous solution of the alcohol alcohol volume fraction
It is 4-5 for 30-40%, the pH of the hydrochloric acid, the pH of the lye is 11-13；
Preferably, in step 1), the alcohol of the aqueous solution of the alcohol in ethyl alcohol, methanol, propyl alcohol and isopropanol at least one
Person；The lye is selected from least one of potassium hydroxide aqueous solution, sodium hydrate aqueous solution；The sodium salt be selected from sodium chloride,
At least one of sodium sulphate, sodium nitrate；The aluminium salt is selected from least one of aluminum nitrate, aluminium chloride, aluminum acetate；The zirconium
Salt is selected from least one of zirconium nitrate, citric acid zirconates；The yttrium salt is selected from yttrium nitrate, three (radical) yttrium salts, trifluoro
At least one of Loprazolam yttrium；The nickel salt is selected from least one of nickel nitrate, nickel sulfate, nickel chloride.
4. preparation method according to claim 1, wherein in step 1), the ageing meets the following conditions: ageing temperature
Degree is 25-35 DEG C, digestion time 18-24h.
5. preparation method according to claim 1, wherein in step 1), the drying meets the following conditions: dry temperature
Degree is 100-110 DEG C, drying time 2-4h.
6. preparation method according to claim 1, wherein in step 1), the mixed time is 15-20min.
7. preparation method according to claim 1, wherein in step 2, the heat treatment meets the following conditions: processing
Temperature is 510-530 DEG C, and the processing time is 6-10h.
8. preparation method according to claim 1, wherein in step 3), the heat-treated products, zinc powder, molybdenum powder, titanium
The weight ratio of powder and aluminium powder is 10:1-3:1.6-2:1.7-2.1:0.5-0.8.
9. preparation method according to claim 1, wherein in step 3), the ball milling meets the following conditions: abrading-ball with
The mass ratio of material is 20:0.8-1.2, revolving speed 1600-1800rpm, Ball-milling Time 40-60min；
Preferably, in step 4), the time of the calcining is 12-15h；
It is highly preferred that the granularity of the diamond dust is 2-4 μm in step 4).
10. a kind of wear-resisting PCD composite sheet, which is characterized in that the wear-resisting PCD composite sheet passes through any one in claim 1-9
Preparation method described in is prepared.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115319647A (en) * | 2022-08-09 | 2022-11-11 | 河南科技大学 | Xerogel and preparation method thereof, organic-inorganic composite bonding agent, corundum abrasive tool and preparation method thereof |
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| WO2014143700A1 (en) * | 2013-03-15 | 2014-09-18 | Smith International, Inc. | Carbonate pcd and methods of making the same |
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| CN106498253A (en) * | 2016-09-21 | 2017-03-15 | 芜湖扬展新材料科技服务有限公司 | A kind of polycrystalline diamond composite material with high stable wearability and preparation method thereof |
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| WO2014143700A1 (en) * | 2013-03-15 | 2014-09-18 | Smith International, Inc. | Carbonate pcd and methods of making the same |
| CN103722174A (en) * | 2013-12-30 | 2014-04-16 | 中原工学院 | Self-sharpening polycrystalline diamond compact and preparation method thereof |
| CN105108666A (en) * | 2015-07-29 | 2015-12-02 | 苏州赛力精密工具有限公司 | Ceramic diamond grinding wheel for machining PCD saw blades and preparation method thereof |
| CN106498253A (en) * | 2016-09-21 | 2017-03-15 | 芜湖扬展新材料科技服务有限公司 | A kind of polycrystalline diamond composite material with high stable wearability and preparation method thereof |
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| CN115319647A (en) * | 2022-08-09 | 2022-11-11 | 河南科技大学 | Xerogel and preparation method thereof, organic-inorganic composite bonding agent, corundum abrasive tool and preparation method thereof |
| CN115319647B (en) * | 2022-08-09 | 2024-01-19 | 河南科技大学 | Xerogel and preparation method thereof, organic-inorganic composite binding agent, corundum grinding tool and preparation method thereof |
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Application publication date: 20181228 |