CN108994721A - Grinder with excellent stability - Google Patents
Grinder with excellent stability Download PDFInfo
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- CN108994721A CN108994721A CN201810879384.7A CN201810879384A CN108994721A CN 108994721 A CN108994721 A CN 108994721A CN 201810879384 A CN201810879384 A CN 201810879384A CN 108994721 A CN108994721 A CN 108994721A
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- Prior art keywords
- grinder
- average grain
- grain diameter
- silica
- melting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/12—Lapping plates for working plane surfaces
- B24B37/14—Lapping plates for working plane surfaces characterised by the composition or properties of the plate materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of grinders with excellent stability, abrasive sheet is installed in the shaft of the grinder, the abrasive sheet is prepared by the following method and obtains: 1) tentatively melting lac resin, isocyanates, fatty acid, be subsequently added into phenolic resin and carry out second melting to obtain fusant；2) fusant is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder to mix so that mixture is made, the mixture is then laid in the surface of the PET polyester film, then cooling, cutting is to be made the grinder with excellent stability；The average grain diameter of the diamond is 0.2-0.3 μm, and the average grain diameter of the silica is 10-15nm, and the average grain diameter of the Brown Alundum is 0.02-0.05 μm, and the average grain diameter of the cerium oxide is 8-12nm.The grinder has excellent stability.
Description
Technical field
The present invention relates to abrasive sheets, and in particular, to a kind of grinder with excellent stability.
Background technique
Abrasive sheet refers to using ultraprecise coating technique, and selected micron or nanoscale abrasive micropowder and high-performance are bonded
After agent is evenly dispersed, it is coated on high-strength PET polyester film (PET is polyethylene terephthalate) surface, is then passed through
High-precision cuts technique and is process.Abrasive sheet is very extensive with field, such as optical communication field, micromotor field, hard disk
Field etc..Below with regard to specific product application be described in detail: diamond lap piece be applied to optical fiber connector, hard disc magnetic head, disk,
Optical glass, optical crystal, LED, LCD, semiconductor material grinding and polishing；Silicon carbide abrasive sheet is applied to going for ceramic insertion core
The fine-grinding and polishing of glue corase grinding, the grinding and polishing of plastics lock pin, magnetic head；Alumina lap piece be applied to optical fiber connector grinding,
The grinding of silicon chip of solar cell, the removal of hard disk carbon-coating protrusion, the removal of ITO protrusion, optical material grinding and polishing；Oxidation
Cerium abrasive sheet is convex applied to the grinding of optical fiber connector, the grinding of silicon chip of solar cell, the removal of hard disk carbon-coating protrusion, ITO
The grinding and polishing of the removal, optical material that rise；Silica abrasive piece is applied to the final Ultraprecise polished of optical fiber connector.
Although existing abrasive sheet can satisfy in most production requirement, abrasive sheet is in grinding, polishing process
In then there is excessive temperature (or even can 1400 DEG C), but often heat dispersal situations are undesirable for existing abrasive sheet, cannot dissipate in time
It loses and then the hardness of abrasive sheet and mechanical strength is caused to reduce.
Summary of the invention
The object of the present invention is to provide a kind of grinder with excellent stability, which has excellent stabilization
Property.
To achieve the goals above, the present invention provides a kind of grinder with excellent stability, which turns
Abrasive sheet is installed, the abrasive sheet is prepared by the following method and obtains on axis:
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added fusant and mixed so that mixture is made, will then mixed
The surface that object is laid in PET polyester film is closed, then cooling, cutting is to be made the grinder with excellent stability；
Wherein, the average grain diameter of diamond is 0.2-0.3 μm, and the average grain diameter of silica is 10-15nm, the average grain of Brown Alundum
Diameter is 0.02-0.05 μm, and the average grain diameter of cerium oxide is 8-12nm.
In the above-mentioned technical solutions, the present invention is preferred is modified lac resin by isocyanates, fatty acid
It prevents etherificate polymerization of the lac resin in thermal histories to improve it by hot property, while phenolic resin is added and is compounded
And then improve the heat resistance of binder；In addition, being optimized by the partial size to diamond, silica, Brown Alundum, cerium oxide
Screening, so that the heat conduction efficiency of abrasive sheet made of improving therefore is equipped with the grinding of the abrasive sheet to improve its stability
Piece has excellent stability.
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 grinder with excellent stability, abrasive sheet is installed in the shaft of grinder, institute
Abrasive sheet is stated to be prepared by the following method and obtain:
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added fusant and mixed so that mixture is made, will then mixed
The surface that object is laid in PET polyester film is closed, then cooling, cutting is to be made the grinder with excellent stability；
Wherein, the average grain diameter of diamond is 0.2-0.3 μm, and the average grain diameter of silica is 10-15nm, the average grain of Brown Alundum
Diameter is 0.02-0.05 μm, and the average grain diameter of cerium oxide is 8-12nm.
In step 1) of the invention, the dosage of each material can select in a wide range, grind to further increase
The stability of grinding machine, it is preferable that in step 1), lac resin, isocyanates, fatty acid, phenolic resin weight ratio be 10:
0.5-0.9:1.5-3:2-5.
In step 1) of the invention, the condition tentatively merged can select in a wide range, in order to further increase
The stability of grinder, it is preferable that in step 1), preliminary fusion meets the following conditions: melting temperature is 180-195 DEG C, is melted
Melting the time is 25-45min.
In step 1) of the invention, the condition of secondary fusion can select in a wide range, in order to further increase
The stability of grinder, it is preferable that in step 1), two hyposynchronization fusions meet the following conditions: melting temperature is 210-220 DEG C,
Melting time is 25-35min.
In step 2) of the invention, the dosage of each material can select in a wide range, grind to further increase
The stability of grinding machine, it is preferable that in step 2, fusant, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight
Amount is than being 15:1-3:42-46:22-25:6-10:5-12.
In step 2) of the invention, the mixed time can select in a wide range, in order to further increase grinding
The stability of machine, it is preferable that in step 2, the mixed time is 15-25min.
In step 2) of the invention, cooling condition can select in a wide range, in order to further increase grinding
The stability of machine, it is preferable that cooling to meet the following conditions in step 2: to be first cooled to the rate of 0.2-0.5 DEG C/min
75-80 DEG C and keep the temperature 40-60min, be then cooled to 40-50 DEG C with the rate of 1.2-1.5 DEG C/min and keep the temperature 2-4h, it is last from
It is so cooling.
In step 1) of the invention, the type of isocyanates and fatty acid can select in a wide range, in order into
One step improves the stability of grinder, and isocyanates is selected from toluene di-isocyanate(TDI), isophorone diisocyanate, diphenylmethyl
At least one of alkane diisocyanate, dicyclohexyl methyl hydride diisocyanate, fatty acid are selected from palmitinic acid, oleic acid, linoleic acid
At least one of with stearic acid.
The present invention will be described in detail by way of examples below.
Embodiment 1
1) lac resin, isocyanates (toluene di-isocyanate(TDI)), fatty acid (palmitinic acid) are tentatively melted into (melting temperature
Be 185 DEG C, melting time 35min), it is subsequently added into phenolic resin and carries out second melting (melting temperature is 215 DEG C, when melting
Between be 30min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio for 10:0.7:2:
3)；
2) fusant mixing 20min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:2:44:26:8:10), then will mixing
Object is laid in the surface of PET polyester film, is then first cooled to 78 DEG C with the rate of 0.4 DEG C/min and keeps the temperature 50min, then with
The rate of 1.4 DEG C/min is cooled to 45 DEG C and keeps the temperature 3h, and last natural cooling is cut so that abrasive sheet A1 is made；
Wherein, the average grain diameter of diamond is 0.25 μm, and the average grain diameter of silica is 13nm, and the average grain diameter of Brown Alundum is
0.04 μm, the average grain diameter of cerium oxide is 10nm.
Embodiment 2
1) lac resin, isocyanates (isophorone diisocyanate), fatty acid (oleic acid) are tentatively melted into (melting temperature
Degree is 180 DEG C, melting time 45min), being subsequently added into phenolic resin progress second melting, (melting temperature is 210 DEG C, melting
Time is 35min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio be 10:0.5:
1.5:2)；
2) fusant mixing 15min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:1:42:22:6:5), then by mixture
It is laid in the surface of PET polyester film, be then first cooled to 75 DEG C with the rate of 0.2 DEG C/min and keeps the temperature 40min, then with 1.2
DEG C/rate of min is cooled to 40 DEG C and keeps the temperature 2h, last natural cooling is cut so that abrasive sheet A2 is made；
Wherein, the average grain diameter of diamond is 0.2 μm, and the average grain diameter of silica is 10nm, and the average grain diameter of Brown Alundum is
0.02 μm, the average grain diameter of cerium oxide is 8nm.
Embodiment 3
1) lac resin, isocyanates (dicyclohexyl methyl hydride diisocyanate), fatty acid (stearic acid) are tentatively melted
(melting temperature is 195 DEG C, melting time 25min), is subsequently added into phenolic resin and carries out second melting (melting temperature 220
DEG C, melting time 25min) with obtain fusant (lac resin, isocyanates, fatty acid, phenolic resin weight ratio be
10:0.9:3:5)；
2) fusant mixing 25min is added in diamond, silica, Brown Alundum, cerium oxide, talcum powder (to melt so that mixture is made
Melt object, diamond, silica, Brown Alundum, cerium oxide, talcum powder weight ratio be 15:3:46:25:10:12), then will mixing
Object is laid in the surface of PET polyester film, is then first cooled to 80 DEG C with the rate of 0.5 DEG C/min and keeps the temperature 60min, then with
The rate of 1.5 DEG C/min is cooled to 50 DEG C and keeps the temperature 4h, and last natural cooling is cut so that abrasive sheet A3 is made；
Wherein, the average grain diameter of diamond is 0.3 μm, and the average grain diameter of silica is 15nm, and the average grain diameter of Brown Alundum is
0.05 μm, the average grain diameter of cerium oxide is 12nm.
Comparative example 1
It carries out that abrasive sheet B1 is made according to the method for embodiment 1, unlike, isocyanates, fatty acid are not used in step 1).
Comparative example 2
It carries out abrasive sheet B2 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 10-15nm.
Comparative example 3
It carries out abrasive sheet B3 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 0.02-0.05 μm.
Comparative example 4
It carries out abrasive sheet B4 is made according to the method for embodiment 1, unlike, silica in step 1), Brown Alundum, cerium oxide
Average grain diameter is 8-12nm.
Application examples 1
Above-mentioned abrasive sheet is installed in the shaft of grinder, then with the revolving speed polishing germanium block 30min of 3000rpm, is then examined
The change rate of polishing front and back Morse hardness is surveyed, concrete outcome is shown in Table 1.
Table 1
| A1 | A2 | A3 | B1 | B2 | B3 | B4 | |
| Change rate/% | -0.15 | -0.13 | -0.14 | -7.5 | -10.3 | -8.6 | -16.9 |
The preferred embodiment of the present invention has been described above in detail, still, the tool during present invention is not limited to the embodiments described above
Body details 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, these letters
Monotropic type all belongs 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 (9)
1. a kind of grinder with excellent stability, which is characterized in that be equipped with abrasive sheet, institute in the shaft of the grinder
Abrasive sheet is stated to be prepared by the following method and obtain:
1) lac resin, isocyanates, fatty acid are tentatively melted, is subsequently added into phenolic resin and carries out second melting to obtain
To fusant；
2) diamond, silica, Brown Alundum, cerium oxide, talcum powder are added the fusant and mixed mixture is made, then
The mixture is laid in the surface of the PET polyester film, it is then cooling, cut to be made described with excellent stability
Grinder；
Wherein, the average grain diameter of the diamond is 0.2-0.3 μm, and the average grain diameter of the silica is 10-15nm, the palm fibre
The average grain diameter of corundum is 0.02-0.05 μm, and the average grain diameter of the cerium oxide is 8-12nm.
2. grinder according to claim 1, wherein in step 1), the lac resin, isocyanates, fatty acid,
The weight ratio of phenolic resin is 10:0.5-0.9:1.5-3:2-5.
3. grinder according to claim 1, wherein in step 1), the preliminary fusion meets the following conditions: melting
Temperature is 180-195 DEG C, melting time 25-45min.
4. grinder according to claim 1, wherein in step 1), the two hyposynchronization fusion meets the following conditions: molten
Melting temperature is 210-220 DEG C, melting time 25-35min.
5. grinder according to claim 1, wherein in step 2, the fusant, diamond, silica, palm fibre are just
Jade, cerium oxide, talcum powder weight ratio be 15:1-3:42-46:22-25:6-10:5-12.
6. grinder according to claim 1, wherein in step 2, the mixed time is 15-25min.
7. grinder according to claim 1, wherein in step 2, the cooling meets the following conditions: first with 0.2-
The rate of 0.5 DEG C/min is cooled to 75-80 DEG C and keeps the temperature 40-60min, is then cooled to 40- with the rate of 1.2-1.5 DEG C/min
50 DEG C and 2-4h is kept the temperature, last natural cooling.
8. grinder according to claim 1, wherein in step 1), the isocyanates is selected from toluene diisocynate
Ester, isophorone diisocyanate, methyl diphenylene diisocyanate, at least one in dicyclohexyl methyl hydride diisocyanate
Person.
9. grinder according to claim 1, wherein in step 1), the fatty acid is selected from palmitinic acid, oleic acid, Asia
At least one of oleic acid and stearic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879384.7A CN108994721A (en) | 2018-08-03 | 2018-08-03 | Grinder with excellent stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879384.7A CN108994721A (en) | 2018-08-03 | 2018-08-03 | Grinder with excellent stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108994721A true CN108994721A (en) | 2018-12-14 |
Family
ID=64595162
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810879384.7A Withdrawn CN108994721A (en) | 2018-08-03 | 2018-08-03 | Grinder with excellent stability |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376726A (en) * | 2001-03-22 | 2002-10-30 | 王振国 | Polishing film and its preparing process |
| CN101219530A (en) * | 2008-02-03 | 2008-07-16 | 北京国瑞升科技有限公司 | Granulation type pouncing paper, preparation method and application thereof |
| US20080248726A1 (en) * | 2004-01-23 | 2008-10-09 | Bando Chemical Industries, Ltd. | Polishing Method and Polishing Film Used in Such Polishing Method |
| CN104275651A (en) * | 2014-09-26 | 2015-01-14 | 河南省联合磨料磨具有限公司 | Diamond polishing film production method |
| CN105415211A (en) * | 2015-12-25 | 2016-03-23 | 江苏锋芒复合材料科技集团有限公司 | Waterproof emery cloth for grinding of car industry and manufacturing method thereof |
| CN105500225A (en) * | 2015-12-25 | 2016-04-20 | 江苏锋芒复合材料科技集团有限公司 | High comprehensive performance composite grinding piece and manufacturing method thereof |
-
2018
- 2018-08-03 CN CN201810879384.7A patent/CN108994721A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376726A (en) * | 2001-03-22 | 2002-10-30 | 王振国 | Polishing film and its preparing process |
| US20080248726A1 (en) * | 2004-01-23 | 2008-10-09 | Bando Chemical Industries, Ltd. | Polishing Method and Polishing Film Used in Such Polishing Method |
| CN101219530A (en) * | 2008-02-03 | 2008-07-16 | 北京国瑞升科技有限公司 | Granulation type pouncing paper, preparation method and application thereof |
| CN104275651A (en) * | 2014-09-26 | 2015-01-14 | 河南省联合磨料磨具有限公司 | Diamond polishing film production method |
| CN105415211A (en) * | 2015-12-25 | 2016-03-23 | 江苏锋芒复合材料科技集团有限公司 | Waterproof emery cloth for grinding of car industry and manufacturing method thereof |
| CN105500225A (en) * | 2015-12-25 | 2016-04-20 | 江苏锋芒复合材料科技集团有限公司 | High comprehensive performance composite grinding piece and manufacturing method thereof |
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Application publication date: 20181214 |
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