CN106541339A - A kind of cubic boron nitride piles up the preparation technology of abrasive material - Google Patents
A kind of cubic boron nitride piles up the preparation technology of abrasive material Download PDFInfo
- Publication number
- CN106541339A CN106541339A CN201611049352.1A CN201611049352A CN106541339A CN 106541339 A CN106541339 A CN 106541339A CN 201611049352 A CN201611049352 A CN 201611049352A CN 106541339 A CN106541339 A CN 106541339A
- Authority
- CN
- China
- Prior art keywords
- boron nitride
- abrasive material
- cubic boron
- piles
- abrasive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003082 abrasive agent Substances 0.000 title claims abstract description 116
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 44
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 239000007767 bonding agent Substances 0.000 claims abstract description 23
- 238000009825 accumulation Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000000498 ball milling Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 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
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 11
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 229920002472 Starch Polymers 0.000 claims abstract description 5
- 235000019698 starch Nutrition 0.000 claims abstract description 5
- 239000008107 starch Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 abstract description 36
- 239000011230 binding agent Substances 0.000 abstract description 13
- 230000035508 accumulation Effects 0.000 description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 229910001651 emery Inorganic materials 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 4
- 239000010431 corundum Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000001272 pressureless sintering Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910002923 B–O–B Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XGCTUKUCGUNZDN-UHFFFAOYSA-N [B].O=O Chemical compound [B].O=O XGCTUKUCGUNZDN-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- -1 it is easy to broken Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Food Science & Technology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of cubic boron nitride piles up the preparation technology of abrasive material, the technique is comprised the following steps：TiO 2 sol, water glass solution and boric acid are prepared into into bonding agent；Again by ball milling after binding agent and yellow starch gum powder, cubic boron nitride abrasive materials dispensing after, sieve, minus mesh is dried to obtain the dry-pressing material that cubic boron nitride piles up abrasive material；By the dry-pressing material of cubic boron nitride accumulation abrasive material compressing, dry, sintering, cooling, obtain cubic boron nitride and pile up abrasive material block, cubic boron nitride accumulation abrasive material is obtained by cubic boron nitride accumulation abrasive material block levigate.The accumulation abrasive material is compared with cubic boron nitride monocrystal abrasive material with more superior grinding performance.
Description
Technical field
The present invention relates to a kind of cubic boron nitride piles up the preparation technology of abrasive material.
Background technology
Cubic boron nitride（CBN）Because having the features such as hardness is high, thermal conductivity is big, chemical stability is good, it is acknowledged as black
The optimal abrasive material of non-ferrous metal accurate grinding.Often the CBN abrasive materials of powder are mixed with resin, ceramics or metallic bond at present
It is compressing afterwards, then the CBN emery wheels with definite shape or intensity are prepared into by solidification or sintering process, it is applied to black gold
Category grinding.It is all monocrystal abrasive to be currently used in and prepare the CBN abrasive materials of CBN emery wheels, and every CBN abrasive material is a monocrystalline,
When being prepared into emery wheel and being ground, every abrasive material only forms a grinding sword, with the carrying out of grinding, the grinding on CBN abrasive materials
Sword is gradually passivated, and crushes in the presence of grinding force and thermal stress, forms a new grinding sword, so goes round and begins again, and continues
Ensure the sharpness of emery wheel.
If can prepare a kind of CBN piles up abrasive material, the micropowder of CBN abrasive materials is bonded together by certain technique,
The CBN that forming certain diameter has some strength piles up abrasive material.With the CBN emery wheels of accumulation abrasive material preparation in grinding process, by
Micropowder interplanar in abrasive material is piled up is to adopt adhesive bond, and bond strength is relatively low, under grinding force effect, piles up abrasive material
It is broken along micropowder crystal face, many small grinding swords are formed in the grinding area of each accumulation abrasive material.With the monocrystalline of same particle sizes
CBN abrasive materials are compared, on the one hand, in grinding process, pile up the grain boundaries low intensity of abrasive material, it is easy to broken, abrasive material from sharp
Property more preferably, grinding efficiency is high；On the other hand, the grinding area of abrasive material is many tiny grinding swords, unlike monocrystalline CBN abrasive materials that
Sample is a big grinding sword, is significantly better than monocrystal abrasive with the surface smoothness for piling up abrasive grinding workpiece out.
Have at present and the report that diamond piles up abrasive material is prepared using Ludox and Alumina gel as binding agent, calcine in abrasive material
Binding agent is changed into unformed aluminium oxide and silicon dioxide can be bonded with diamond afterwards, forms high intensity bonding.But it is molten using silicon
Glue and Alumina gel cannot be prepared CBN as binding agent and pile up abrasive material.It is simultaneously existing pile up abrasive material preparation method be all
In a large amount of liquid-based bonding agents, compound abrasive obtains slurry, accumulation abrasive material is obtained is calcined by way of being spray-dried again, should
The usage amount of technique liquid-based bonding agent is big, and equipment is complicated, because being not pressurized, between abrasive grain and granule, contact surface is little, sintering
It is low that abrasive material bond strength is piled up afterwards.
The content of the invention
Present invention solves the technical problem that being, prior art fails to prepare the cubic boron nitride of function admirable and piles up mill
Material, the present invention combine ball milling, sintering process and obtain cubic boron nitride accumulation of good performance after being bondd with a kind of new binding agent
Abrasive material.
It is an object of the invention to a kind of cubic boron nitride piles up the preparation technology of abrasive material, the technique first adopts solution legal system
It is standby go out CBN micropowders bonding agent, then after bonding agent is mixed homogeneously by a certain percentage with CBN micropowders, dry-pressing formed pressureless sintering,
The block materials of inorganic adhesive and CBN abrasive materials composition are obtained, then the CBN for obtaining designated size by sieving after block materials ball milling
Pile up abrasive material.
The technical scheme is that, there is provided a kind of cubic boron nitride piles up the preparation technology of abrasive material, the method include with
Lower step：
（1）The preparation of bonding agent
By weight percentage, the formula of bonding agent is as follows：
The TiO 2 sol 20%-30% of solid content 8-12%
The water glass solution 65%-75% of modulus 2.6-2.9
Boric acid 4-6%
Boric acid is dissolved in waterglass, can improve the wettability of liquid adhesive and CBN, while piling up the follow-up burning of abrasive material
In knot technique, with TiO2The low-melting glass of boracic is formed with waterglass sodium silicate, strengthens moistening of the low-melting glass to CBN
Property, improve the adhesive strength to CBN.
First the water glass solution for weighing up is mixed with TiO 2 sol, boric acid is added, after mixing, is obtained bonding agent；
（2）Cubic boron nitride piles up the preparation of abrasive material
By weight percentage, the composition of raw materials of cubic boron nitride accumulation abrasive material is as follows：
Cubic boron nitride abrasive materials 75%-80% of the granularity for W5
Step（1）The bonding agent 17%-22% of preparation
Yellow starch gum powder 2-4%
In order to the grinding efficiency of accumulation abrasive material and the surface smoothness of part after abrasive machining of taking into account acquisition are W5 from granularity
Cubic boron nitride abrasive materials.The dry-pressing formed block that yellow starch gum powder can pile up abrasive material to cubic boron nitride provides certain interim
Intensity, complete oxidation volatilization during high temperature sintering do not affect cubic boron nitride to pile up intensity after the sintering of abrasive material.
The cubic boron nitride for weighing up is piled up the raw material mixing and ball milling of abrasive material by formula, then the material after ball milling is sieved,
Minus mesh is dried to obtain the dry-pressing material that cubic boron nitride piles up abrasive material；
By the dry-pressing material of cubic boron nitride accumulation abrasive material compressing, dry, sintering, cooling, obtain cubic boron nitride and pile up mill
Cubic boron nitride is piled up the levigate cubic boron nitride that obtains of abrasive material block and piles up abrasive material by material block.
Preferably, the sintering is first to be warming up to 500-550 DEG C with the speed of 3-5 DEG C/min of heating rate, and 1-2 is little for insulation
When, then 800-850 DEG C is warming up to the speed of 2-4 DEG C/min of heating rate, 1.5-2 hours are incubated, stop heating.
Preferably, it is described be cooled in sintering after the completion of first carry out furnace cooling, when furnace temperature be less than 450 DEG C when open fire door it is cold
But, cubic boron nitride accumulation abrasive material block is taken out from stove when temperature is less than 70 DEG C.
Preferably, cubic boron nitride piles up the particle diameter of the dry-pressing material of abrasive material less than 40 mesh sieve screen distances.
Preferably, cubic boron nitride piles up the particle diameter of abrasive material less than 60 mesh sieve screen distances.
Preferably, step（1）In, by the water glass solution for weighing up, silicon dioxide gel is added, at 2000 revs/min
Rotating speed under stir 0.5-1 hours, be subsequently adding boric acid, under 2000 revs/min of rotating speed stir 1-2 hours, obtain bonding
Agent.
Step（1）Formula mixing after the binding agent that obtains for liquid binding agent, after mix with CBN abrasive materials, sintering is converted
Cheng Jun has the inorganic binder of the solid-state of strong cementation.
Learn by analysis, if Ludox and Alumina gel are as binding agent, as CBN abrasive surfaces have wrapped up one layer of B2O3
Oxide layer, the oxide layer are difficult by Ludox and Alumina gel moistening, at the same calcining after CBN surfaces B2O3Lacking alkali metal oxygen
Al in the presence of compound, in meeting Ludox and Alumina gel2O3And SiO2Form the high expansion coefficient glass ceramics of layer structure
Phase, it is impossible to firmly combine CBN abrasive materials.Therefore want to prepare high performance CBN accumulations abrasive material, it is necessary to consider that CBN abrasive materials
The B that surface is present2O3Oxide layer, designs a kind of CBN and piles up abrasive material special inorganic binding agent, and it can preferable moistening CBN abrasive material tables
The B in face2O3Oxide layer, after heat treatment, bonding agent energy and B2O3Oxide layer forms what the coefficient of expansion was matched with CBN, comprehensive mechanical property
The good inorganic bond layer of energy.
The present invention adds appropriate TiO in water glass solution2Colloidal sol and boric acid are prepared for CBN and pile up special viscous of abrasive material
Knot agent, because TiO2The B that colloidal sol is easily present with CBN abrasive surfaces2O3Oxide layer forms Ti-B-O chemical bondings, can be effectively
Wettability of the binding agent to CBN abrasive materials is improved, current Ludox is solved and Alumina gel system binding agent is difficult to moistening CBN abrasive materials
A difficult problem.When the dry-pressing formed pressureless sintering of the CBN abrasive materials that will add bonding agent, the moisture in bonding agent is removed completely, residual
Under inorganic constituentss TiO2、NaSiO3And B2O3In abrasive material sintering process is piled up, mutually fusion low-melting glass phase can be formed,
High strength bond is realized to CBN abrasive materials.On the one hand, because there is Na in the glass phase2O and B2O3, B2O3Na can be captured2O " from
By oxygen ", glass network is entered with the structure of boron oxygen tetrahedron, the expansion system of the intensity and reduction glass phase of glass phase can be improved
Number, makes the coefficient of expansion of the glass bond after sintering be reduced to 6 × 10-6/ below K, the coefficient of expansion 5.5 × 10 with CBN-6/
K is more matched, and is reduced the thermal stress of bonding interface, is improve adhesive strength；Exist in another aspect glass phase bonding agent
TiO2And B2O3, Ti-B-O and B-O-B keys can be formed with CBN at a sintering temperature, form firm interface cohesion.This is special viscous
Knot agent solves CBN and piles up abrasive material preparation process, and the skill of high strength bonding is difficult to by binding agent moistening and realized between CBN abrasive materials
Art problem, is that unique a kind of CBN of current report piles up abrasive material bonding agent.Meanwhile, this technique is using a small amount of special bonding of addition
Powder body dry-pressing formed rear pressureless sintering is crushed and is sieved as molding mass by the CBN abrasive material dry-pressing material of agent again, is obtained and is piled up abrasive material.
The technique liquid-based bonding agent addition is few, and technique is relatively easy, because pressurizeing in molding, contact surface between abrasive grain and granule
Greatly, abrasive material bond strength is piled up after sintering high.
The invention has the beneficial effects as follows, obtaining CBN and pile up abrasive material, the accumulation abrasive material is compared with CBN monocrystal abrasives in mill
During cutting, macroscopically, the accumulation abrasive material has certain comprcssive strength, can give full play to CBN abrasive material high rigidity, high service life
The characteristics of.See on microcosmic, in grinding process, pile up the grain boundaries low intensity of abrasive material, it is easy to which broken, the self-sharpening of abrasive material is more
Good, grinding efficiency improves more than 50% than the monocrystalline CBN abrasive materials of one-size.Meanwhile, the grinding area for piling up abrasive material is many tiny
Grinding sword, be a big grinding sword unlike monocrystalline CBN abrasive materials, with pile up abrasive grinding workpiece out surface light
Cleanliness is significantly better than monocrystal abrasive.
Description of the drawings
Fig. 1 represents that CBN piles up the surface topography of grinding surface after abrasive grinding.
Fig. 2 represents the surface topography of workpiece after the grinding of 60# monocrystalline CBN abrasive grinding wheels.
Fig. 3 represents that 60#CBN piles up the surface topography of workpiece after abrasive grinding wheel grinding.
Specific embodiment
A kind of CBN piles up the preparation technology of abrasive material, concretely comprises the following steps：
By technical grade TiO 2 sol（Solid concentration 10wt%）, commercially available industrial-grade sodium silicate solution（Modulus 2.8）And boric acid
（Chemistry is pure）In mass ratio 25:70:5 weigh, and will add TiO 2 sol in the water glass solution for weighing up, 2000 turns/
Stir 1 hour under the rotating speed of minute, be subsequently adding load weighted boric acid, stir 1 hour under 2000 revs/min of rotating speed, then
The liquid for mixing is poured into stand-by in hermetic container, the bonding agent of acquisition CBN accumulation abrasive materials.
（2）By CBN abrasive materials（Granularity W5）, step（1）The bonding agent and yellow starch gum powder in mass ratio 77 of acquisition:20:3 weigh
Good, the various raw materials for weighing up are poured in corundum ball milling altar, ball milling altar diameter 400mm, by ball material mass ratio 0.8:1 ratio is added
Baton round abrading-ball, wherein the baton round of a diameter of 40mm accounts for 30%, diameter accounts for 70% less than the baton round of 40mm.Ball milling altar rotation
Speed is 30r/min.Raw material ball milling was taken out after 1 hour, after raw material crosses 40# screen clothes, was dried 2 hours, envelope in 70 DEG C of baking ovens
Preserve, obtain CBN and pile up abrasive material dry-pressing material.
（3）Square dies of the specification for 40 × 40 × 10mm are chosen, and the compact density for abrasive material block being piled up by CBN is
2.3g/cm3, the quality that feeds intake is calculated according to mould volume and compact density, the molding mass of respective quality is weighed, after crossing 80# screen clothes
Put in mould, extrusion forming, after mould is pressed onto specified shaping position, pressurize 3 minutes, release, the demoulding, after molding
CBN piles up abrasive material block and is positioned on SiC refractory slabs, after placing 12 hours, is dried 6 hours in being put into 70 DEG C of baking ovens under room temperature.
（4）The refractory slab for placing CBN accumulation abrasive material blocks is put in shaft furnace, is heated up with the speed of 5 DEG C/min of heating rate
To 500 DEG C, 2 hours are incubated, then 850 DEG C are warming up to the speed of 3 DEG C/min of heating rate, be incubated 1.5 hours, close furnace rear CBN
Emery wheel natural cooling in the electric furnace, opens fire door cooling when furnace temperature is less than 450 DEG C, and CBN is piled up when being less than 70 DEG C and ground by temperature
Material block is taken out from stove.
(5) CBN accumulation abrasive material blocks are put in the corundum ball milling altar of diameter 400mm, each ball milling altar is put into CBN accumulations
10 pieces of abrasive material block, is put into 800 grams of the corundum ball of diameter 30mm, 500 grams of the corundum ball of diameter 200mm.With 30 revs/min turn
Fast ball milling CBN piles up abrasive material block, pours out broken CBN abrasive material blocks within 0.5 hour per ball milling, crosses 60# screen clothes, and what sieve was lower is
Abrasive material finished product is piled up for CBN, during on sieve, fragment is put into ball milling altar, continuation ball milling sieves for 0.5 hour.It is repeated 3 times ball milling to sieve, sieves
Under CBN pile up abrasive material and be final CBN and pile up abrasive material finished product.
Made with the abrasive material after CBN emery wheels, in grinding process, every CBN piles up abrasive material and can break along the crystal face of CBN micropowders
It is broken, many small grinding swords can be formed in the grinding surface of abrasive material（Such as Fig. 1）.With the monocrystalline CBN abrasive material systems of same particle sizes 40#
Standby CBN emery wheels are compared, and the grinding efficiency for piling up abrasive grinding wheel improves 62%.Using the CBN emery wheels for piling up the preparation of CBN abrasive materials
The GCr15 piece surfaces fineness of processing is Ra0.16, and the surface smoothness of the GCr15 parts of monocrystalline CBN abrasive machinings is
Ra1.6,（Such as Fig. 2, Fig. 3）.The fineness for piling up the part of abrasive machining is more preferable.
Claims (6)
1. a kind of cubic boron nitride piles up the preparation technology of abrasive material, it is characterised in that the method is comprised the following steps：
（1）The preparation of bonding agent
By weight percentage, the formula of bonding agent is as follows：
The TiO 2 sol 20%-30% of solid content 8-12%
The water glass solution 65%-75% of modulus 2.6-2.9
Boric acid 4-6%
First the water glass solution for weighing up is mixed with TiO 2 sol, boric acid is added, after mixing, is obtained bonding agent；
（2）Cubic boron nitride piles up the preparation of abrasive material
By weight percentage, the composition of raw materials of cubic boron nitride accumulation abrasive material is as follows：
Cubic boron nitride abrasive materials 75%-80% of the granularity for W5
Step（1）The bonding agent 17%-22% of preparation
Yellow starch gum powder 2-4%
The cubic boron nitride for weighing up is piled up the raw material mixing and ball milling of abrasive material by formula, then the material after ball milling is sieved, under sieve
Material is dried to obtain the dry-pressing material that cubic boron nitride piles up abrasive material；
By the dry-pressing material of cubic boron nitride accumulation abrasive material compressing, dry, sintering, cooling, obtain cubic boron nitride and pile up mill
Cubic boron nitride is piled up the levigate cubic boron nitride that obtains of abrasive material block and piles up abrasive material by material block.
2. preparation technology as claimed in claim 1, it is characterised in that the sintering is first with 3-5 DEG C/min of heating rate
Speed is warming up to 500-550 DEG C, is incubated 1-2 hours, then is warming up to 800-850 DEG C with the speed of 2-4 DEG C/min of heating rate, protects
Warm 1.5-2 hours, stop heating.
3. preparation technology as claimed in claim 1, it is characterised in that it is described be cooled in sintering after the completion of first carry out it is cold with stove
But, fire door cooling is opened when furnace temperature is less than 450 DEG C, when temperature is less than 70 DEG C by cubic boron nitride accumulation abrasive material block from stove
Take out.
4. preparation technology as claimed in claim 1, it is characterised in that the particle diameter that cubic boron nitride piles up the dry-pressing material of abrasive material is little
In 40 mesh sieve screen distances.
5. preparation technology as claimed in claim 1, it is characterised in that cubic boron nitride is piled up the particle diameter of abrasive material and is less than 60 mesh sieves
Screen distance.
6. preparation technology as claimed in claim 1, it is characterised in that step（1）In, by the water glass solution for weighing up, plus
Enter silicon dioxide gel, 0.5-1 hours are stirred under 2000 revs/min of rotating speed, boric acid is subsequently adding, at 2000 revs/min
Rotating speed under stir 1-2 hours, obtain bonding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049352.1A CN106541339B (en) | 2016-11-24 | 2016-11-24 | A kind of preparation process of cubic boron nitride accumulation abrasive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049352.1A CN106541339B (en) | 2016-11-24 | 2016-11-24 | A kind of preparation process of cubic boron nitride accumulation abrasive material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106541339A true CN106541339A (en) | 2017-03-29 |
| CN106541339B CN106541339B (en) | 2018-08-21 |
Family
ID=58395026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611049352.1A Active CN106541339B (en) | 2016-11-24 | 2016-11-24 | A kind of preparation process of cubic boron nitride accumulation abrasive material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106541339B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926146A (en) * | 2017-04-14 | 2017-07-07 | 河南工业大学 | A kind of nanometer combines superhard micro mist and piles up abrasive material and preparation method thereof |
| CN107081688A (en) * | 2017-05-27 | 2017-08-22 | 江苏省江南新型复合研磨材料及制品工程技术研究中心有限公司 | The multiple grinding piece and its manufacture method of a kind of high-strength high-performance |
| CN107617983A (en) * | 2017-10-25 | 2018-01-23 | 湖南兴大新材料有限公司 | A kind of low-temperature sintered ceramics bonding agent and its preparation technology |
| CN113635227A (en) * | 2021-08-13 | 2021-11-12 | 白鸽磨料磨具有限公司 | Polymerized abrasive ceramic grinding wheel for grinding bearing channel and preparation method thereof |
| CN116903387A (en) * | 2023-07-20 | 2023-10-20 | 优钢新材料科技(湖南)有限公司 | Preparation method of ZTA particle porous ceramic preform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2264115A1 (en) * | 2000-10-06 | 2010-12-22 | 3M Innovative Properties Co. | Agglomerate abrasive grain and a method of making the same |
| CN104772711A (en) * | 2015-03-25 | 2015-07-15 | 富耐克超硬材料股份有限公司 | Polycrystalline cubic boron nitride abrasive and preparation method thereof |
| CN105252429A (en) * | 2015-10-09 | 2016-01-20 | 芜湖市鸿坤汽车零部件有限公司 | Titanium modification resin grinding wheel and preparation method thereof |
| CN105856087A (en) * | 2016-04-22 | 2016-08-17 | 柳州凯通新材料科技有限公司 | Preparing method for superhard diamond abrasive materials for high-precision cutting grinding wheel |
-
2016
- 2016-11-24 CN CN201611049352.1A patent/CN106541339B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2264115A1 (en) * | 2000-10-06 | 2010-12-22 | 3M Innovative Properties Co. | Agglomerate abrasive grain and a method of making the same |
| CN104772711A (en) * | 2015-03-25 | 2015-07-15 | 富耐克超硬材料股份有限公司 | Polycrystalline cubic boron nitride abrasive and preparation method thereof |
| CN105252429A (en) * | 2015-10-09 | 2016-01-20 | 芜湖市鸿坤汽车零部件有限公司 | Titanium modification resin grinding wheel and preparation method thereof |
| CN105856087A (en) * | 2016-04-22 | 2016-08-17 | 柳州凯通新材料科技有限公司 | Preparing method for superhard diamond abrasive materials for high-precision cutting grinding wheel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926146A (en) * | 2017-04-14 | 2017-07-07 | 河南工业大学 | A kind of nanometer combines superhard micro mist and piles up abrasive material and preparation method thereof |
| CN106926146B (en) * | 2017-04-14 | 2019-02-26 | 河南工业大学 | A kind of nanometer combines superhard micro mist accumulation abrasive material and preparation method thereof |
| CN107081688A (en) * | 2017-05-27 | 2017-08-22 | 江苏省江南新型复合研磨材料及制品工程技术研究中心有限公司 | The multiple grinding piece and its manufacture method of a kind of high-strength high-performance |
| CN107617983A (en) * | 2017-10-25 | 2018-01-23 | 湖南兴大新材料有限公司 | A kind of low-temperature sintered ceramics bonding agent and its preparation technology |
| CN113635227A (en) * | 2021-08-13 | 2021-11-12 | 白鸽磨料磨具有限公司 | Polymerized abrasive ceramic grinding wheel for grinding bearing channel and preparation method thereof |
| CN116903387A (en) * | 2023-07-20 | 2023-10-20 | 优钢新材料科技(湖南)有限公司 | Preparation method of ZTA particle porous ceramic preform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106541339B (en) | 2018-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106541339B (en) | A kind of preparation process of cubic boron nitride accumulation abrasive material | |
| CN109551382B (en) | Microcrystalline glass ceramic bonding agent and method for preparing CBN grinding wheel by using same | |
| CN102229122A (en) | Special ceramic bond diamond grinding wheel for grinding diamond | |
| CN103240683B (en) | Ceramic-metal compound bond for cubic boron nitride grinding wheels | |
| CN103551971A (en) | Ceramic binding agent for ceramic grinding block and preparation method thereof | |
| CN104669131A (en) | Calcium sulfate whisker reinforced resin grinding wheel and preparation method thereof | |
| CN104128892A (en) | Metal ceramic composite binding agent and composite binding agent diamond grinding wheel | |
| CN105130482B (en) | A kind of Metal toughened ceramic matric composite for 3D printing | |
| CN103624696A (en) | Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool | |
| CN101851488A (en) | Ceramic bond diamond grinding block and manufacturing method thereof | |
| CN105196201A (en) | Novel grinding material, novel grinding tool, preparing method of novel grinding material and preparing method of novel grinding tool | |
| CN106041760A (en) | Self-sharpening diamond grinding wheel and preparation method thereof | |
| CN108610073A (en) | A kind of fire resisting cracking resistance composite brick and preparation method thereof | |
| CN107617983B (en) | A kind of low-temperature sintered ceramics bonding agent and its preparation process | |
| CN105345679A (en) | Basalt fiber enhanced nano-vitrified bond diamond grinding wheel and preparation method thereof | |
| CN105418054A (en) | Novel special ceramic material preparing method | |
| CN106116579A (en) | A kind of high-strength diamond based composite ceramic material | |
| CN107685294A (en) | A kind of vitrified bond and preparation method thereof | |
| CN105666346A (en) | Lead-free microcrystalline glass binding agent, superhard material grinding wheel and preparation method of superhard material grinding wheel | |
| CN105196200B (en) | A kind of manufacture method of the emery wheel of rare-earth ceramic bonding agent and the use bonding agent | |
| CN103465178A (en) | Ceramic organic composite binder for cubic boron nitride grinding wheels | |
| CN110078511B (en) | Ti3AlC2Method for preparing diamond drilling tool bit based on ceramic bond | |
| CN114163228B (en) | Slag-stopping sliding plate of aluminum-calcium-carbon converter and preparation method thereof | |
| CN105171624A (en) | Nano ceramic bond diamond wheel containing tetrapod-like zinc oxide whiskers reinforced and preparing method of nano ceramic bond diamond wheel | |
| CN109665530B (en) | A method of ultra-fine cristobalite powder is prepared with quartz sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20241017 Address after: Room 103, Building 12, No. 188, Environmental Protection Middle Road, Tongsheng Street, Yuhua District, Changsha City, Hunan Province 410000 Patentee after: Hunan Ming Innovative Materials Technology Co.,Ltd. Country or region after: China Address before: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 2 Patentee before: HUNAN University Country or region before: China |