CN109593515A - A kind of polycrystalline corundum abrasive material and preparation method thereof - Google Patents
A kind of polycrystalline corundum abrasive material and preparation method thereof Download PDFInfo
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- CN109593515A CN109593515A CN201710944725.XA CN201710944725A CN109593515A CN 109593515 A CN109593515 A CN 109593515A CN 201710944725 A CN201710944725 A CN 201710944725A CN 109593515 A CN109593515 A CN 109593515A
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- Prior art keywords
- polycrystalline
- polycrystalline corundum
- corundum abrasive
- abrasive material
- corundum
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- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 52
- 239000010431 corundum Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003082 abrasive agent Substances 0.000 title abstract description 49
- 239000002245 particle Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 238000000498 ball milling Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000005469 granulation Methods 0.000 claims abstract description 7
- 230000003179 granulation Effects 0.000 claims abstract description 7
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 19
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000009719 polyimide resin Substances 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000008399 tap water Substances 0.000 abstract description 3
- 235000020679 tap water Nutrition 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 11
- 239000007767 bonding agent Substances 0.000 description 11
- 238000007906 compression Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 10
- 239000003595 mist Substances 0.000 description 10
- 235000013339 cereals Nutrition 0.000 description 8
- 238000000227 grinding Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000006061 abrasive grain Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000020985 whole grains Nutrition 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
- C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by sintering
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
本发明公开了一种多晶刚玉磨料，由白刚玉微粉和基础结合剂组成，所述的白刚玉微粉的粒径为0.1～10μm，所述的基础结合剂的质量分数为2wt.％‑40wt.％。通过控制基础结合剂的含量、造粒的大小、烧结温度、保温时间等工艺参数，经混匀、过筛、成型、造粒、烧结等工艺得到多晶刚玉磨料，制备方法简单、对仪器要求低、原料价格相对便宜，大大降低了多晶刚玉磨料的生产成本，所得的多晶刚玉磨料通过在自来水中浸泡100h后测定其腐蚀前后的抗压强度比值，数值最高可达58.93％；根据GB/T 23538‑2009测定球磨韧性最高可达49.93％；单颗粒抗压强度可达25‑35N，磨料的密度最高可达3‑3.5g/cm3。The invention discloses a polycrystalline corundum abrasive, which is composed of white corundum micropowder and a basic binder, the particle size of the white corundum micropowder is 0.1-10 μm, and the mass fraction of the basic binder is 2wt.%-40wt .%. By controlling the content of the basic binder, the size of granulation, the sintering temperature, the holding time and other process parameters, the polycrystalline corundum abrasive is obtained by mixing, sieving, forming, granulating, sintering and other processes. The preparation method is simple and requires equipment. Low cost and relatively cheap raw material prices, which greatly reduces the production cost of polycrystalline corundum abrasives. The obtained polycrystalline corundum abrasives are immersed in tap water for 100 hours to measure the ratio of compressive strength before and after corrosion, and the value can reach up to 58.93%; according to GB /T 23538‑2009 determines that the ball milling toughness can reach up to 49.93%; the single particle compressive strength can reach 25‑35N, and the abrasive density can reach up to 3‑3.5g/cm3.
Description
Technical field
The invention belongs to field of inorganic nonmetallic material, it is related to a kind of polycrystalline corundum abrasive material and preparation method thereof.
Background technique
Grinding tool is the tool to be ground, grind and polish.Most grinding tool is with abrasive material plus made of bonding agent
Artificial grinding tool.In addition to being widely adopted in machine-building and other metal-processing industries, grinding tool is also used for grain processing, makes
The processing of the nonmetallic materials such as paper industry and ceramics, glass, stone material, plastics, rubber, timber.Abrasive material is sharp keen, hard material
Material is the manufacture essential material of each sophisticated product to be ground softer material surface, and performance seriously affects
The quality of grinding.
Traditional conventional abrasive material generallys use the method preparation of electric smelting smelting.One abrasive grain of monocrystal abrasive is exactly one
A abrasive material monocrystalline, when being ground, abrasive material corner angle are easy blunt, and abrasive grain whole grain falls off；It is different from monocrystal abrasive, polycrystalline abrasive grit
There is very big difference with it in microcosmic microstructure, abrasive grain is made of many small crystal, when carrying out grinding operation, mill
Grain is crushed in the broken mode not instead of whole grain that falls off of stress to fall off, and many small crystal gradually take off on each abrasive grain
It falls, the self-sharpening for not only having increased abrasive material the maintenance frequency for reducing tool, improves the working condition of abrasive material, but also extends grinding tool
Service life, while preparation method is simple, low in cost.
Although polycrystalline corundum abrasive material has many advantages, such as that application prospect is extensive, due to the fusing point (2050 of pure alumina
DEG C) very high, so that low temperature is difficult to be sintered during the preparation process, temperature is excessively high and easily causes abnormal grain growth, destructive characteristics.Cause
How this reduces polycrystalline corundum abrasive material firing temperature, at the same keep its microstructure again and the uniformity of pattern be polycrystalline corundum mill
Expect the emphasis of research field.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of polycrystalline corundum abrasive material and its preparation sides
Method is mixed, mistake by technological parameters such as content, the size of granulation, sintering temperature, the soaking times of the basic bonding agent of control
Sieve, molding, be granulated, the techniques such as sintering obtain polycrystalline corundum abrasive material, preparation method is simple, cost of material phase low to instrument requirements
To cheap, the production cost of polycrystalline corundum abrasive material is greatly reduced.
The present invention is achieved by the following technical solutions:
A kind of polycrystalline corundum abrasive material is made of, the partial size of the white fused alumina micro mist white fused alumina micro mist and basic bonding agent
It is 0.1~10 μm, the mass fraction of the basic bonding agent is 2wt.%-40wt.%.
In the above-mentioned technical solutions, the basic bonding agent is epoxy resin, novel phenolic resin, polyurethane resin or poly-
Imide resin.
In the above-mentioned technical solutions, the partial size of the white fused alumina micro mist is preferably 1~2 μm.
In the above-mentioned technical solutions, the mass fraction of the basic bonding agent is preferably 25wt.%-35wt.%.
A kind of preparation method of polycrystalline corundum abrasive material, comprising the following steps:
(1) white fused alumina micro mist and basic bonding agent mechanical mixture is uniform；
(2) the resulting mixing material of step (1) is smashed to pieces in mortar, binder granulation is added, filters out and meets grain
The particle that diameter requires, it is dry-pressing formed with press machine；
(3) step (2) gained is mixed into cooling after material is sintered and obtains polycrystalline corundum abrasive material.
In the above-mentioned technical solutions, the mechanical blending manner is to be mixed using ball mill, Ball-milling Time 1-3h.
In the above-mentioned technical solutions, the partial size of the white fused alumina micro mist is 0.1~10 μm, the basic bonding agent
Mass fraction is 2wt.%-40wt.%.
In the above-mentioned technical solutions, the basic bonding agent is epoxy resin, novel phenolic resin, polyurethane resin or poly-
Imide resin.
In the above-mentioned technical solutions, the binder is paraffin or waterglass.
In the above-mentioned technical solutions, the satisfactory grain diameter is 60-80 mesh.
In the above-mentioned technical solutions, the temperature of the sintering is 800 DEG C -1200 DEG C, and heating rate is 5-10 DEG C/min,
Soaking time is 0.5h-2h.
Compared with prior art, the invention has the advantages and beneficial effects that: preparation process is very simple, directly by white fused alumina
Micro mist and basic bonding agent obtain polycrystalline corundum abrasive material through mixing, sieving, molding, granulation, sintering process；Resulting polycrystalline corundum
For abrasive material by measuring its compression strength ratio before and after corroding after impregnating 100h in tap water, numerical value reaches as high as 58.93%；
Ball milling toughness, which is measured, according to GB/T 23538-2009 reaches as high as 49.93%；Individual particle compression strength is up to 25-35N, abrasive material
Density reach as high as 3-3.5g/cm3.
Specific embodiment
Below with reference to specific embodiment, present invention is further described in detail.It should be understood that following implementations
Example be it is illustrative, be not restrictive, cannot be limited the scope of protection of the present invention with following embodiments.In following embodiment
Required raw material is commercially available.Ball mill is that Germany FRITSCH (goes at express speed) tetra- tank planetary ball mill of P5, and chamber type electric resistance furnace is
The SX-2.5-10TC type integrated box resistance furnace of Huanghua light experimental instrument and equipment Co., Ltd, the examination of constant stress compression strength
Test the QJYL-2000 type constant stress compression Strength testing machine that machine is Shanghai Qing Ji instrument and meter Science and Technology Ltd..
Embodiment 1
Prepare polycrystalline corundum abrasive material
(1) by partial size be 1 μm white fused alumina micro mist and mass fraction be that 20% epoxy resin is uniformly mixed using ball mill,
Ball-milling Time is 1h；
(2) the resulting mixing material of step (1) is smashed to pieces in mortar, paraffin is added and is granulated, filters out the particle of 60 mesh, uses
Press machine is dry-pressing formed；
(3) material will be mixed obtained by step (2) and is warming up to 970 DEG C with the speed of 5 DEG C/min and be sintered, keep the temperature 1h, after with
Furnace is cooled to room temperature, cooling after sintering to obtain polycrystalline corundum abrasive material.
Gained polycrystalline corundum abrasive material individual particle compression strength be 34.3N, ball milling toughness be 49.93%, abrasive material it is corrosion-resistant
Property be 58.16%, the density of abrasive material is 3.45g/cm3.
Embodiment 2
Prepare polycrystalline corundum abrasive material
(1) by partial size be 2 μm white fused alumina micro mist and mass fraction be that 25% epoxy resin is uniformly mixed using ball mill,
Ball-milling Time is 1h；
(2) the resulting mixing material of step (1) is smashed to pieces in mortar, paraffin is added and is granulated, filters out 60 purposes
Grain, it is dry-pressing formed with press machine；
(3) material will be mixed obtained by step (2) and is warming up to 1000 DEG C with the speed of 5 DEG C/min and be sintered, keep the temperature 1h, after with
Furnace is cooled to room temperature, cooling after sintering to obtain polycrystalline corundum abrasive material.
Gained polycrystalline corundum abrasive material individual particle compression strength be 30.5N, ball milling toughness be 29.43%, abrasive material it is corrosion-resistant
Property be 44.25%, the density of abrasive material is 3.40g/cm3。
Embodiment 3
Prepare polycrystalline corundum abrasive material
(1) by partial size be 3 μm white fused alumina micro mist and mass fraction be that 30% epoxy resin is uniformly mixed using ball mill,
Ball-milling Time is 2h；
(2) the resulting mixing material of step (1) is smashed to pieces in mortar, filters out the particle of 60 mesh, paraffin is added and makes
Grain, it is dry-pressing formed with press machine；
(3) step (2) gained is mixed and expects that being warming up to 1200 DEG C with the speed of 10 DEG C/min is sintered, and keeps the temperature 2h, after
Cool to room temperature with the furnace, it is cooling after sintering to obtain polycrystalline corundum abrasive material.
Gained polycrystalline corundum abrasive material individual particle compression strength be 28.0N, ball milling toughness be 39.98%, abrasive material it is corrosion-resistant
Property be 58.93%, the density of abrasive material is 3.50g/cm3。
Embodiment 4
Prepare polycrystalline corundum abrasive material
(1) by partial size be 4 μm white fused alumina micro mist and mass fraction be that 35% epoxy resin is uniformly mixed using ball mill,
Ball-milling Time is 2h；
(2) the resulting mixing material of step (1) is smashed to pieces in mortar, filters out the particle of 80 mesh, paraffin is added and makes
Grain, it is dry-pressing formed with press machine；
(3) step (2) gained is mixed and expects that being warming up to 1200 DEG C with the speed of 10 DEG C/min is sintered, and keeps the temperature 2h, after
Cool to room temperature with the furnace, it is cooling after sintering to obtain polycrystalline corundum abrasive material.
Gained polycrystalline corundum abrasive material individual particle compression strength be 34.0N, ball milling toughness be 48.85%, abrasive material it is corrosion-resistant
Property be 56.72%, the density of abrasive material is 3.20g/cm3。
The present invention passes through the techniques ginsengs such as content, the size of granulation, sintering temperature, the soaking time of the basic bonding agent of control
Number obtains polycrystalline corundum abrasive material through techniques such as mixing, sieving, molding, granulation, sintering, and preparation method is simple, to instrument requirements
It is low, cost of material is relatively cheap, greatly reduce the production cost of polycrystalline corundum abrasive material.Resulting polycrystalline corundum abrasive material by
Its compression strength ratio for corroding front and back is measured after impregnating 100h in tap water, numerical value reaches as high as 58.93%；According to GB/T
23538-2009 measurement ball milling toughness reaches as high as 49.93%；Individual particle compression strength is measured up to 34.30N using drainage
The density of abrasive material, the density for measuring abrasive material reach as high as 3.5g/cm3.
According to summary of the invention carry out technological parameter adjustment can be achieved polycrystalline corundum abrasive material preparation, and show with it is upper
State the almost the same performance of embodiment.Illustrative description is done to the present invention above, it should which explanation is not departing from this hair
In the case where bright core, any simple deformation, modification or other skilled in the art can not spend creative labor
Dynamic equivalent replacement each falls within protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944725.XA CN109593515B (en) | 2017-09-30 | 2017-09-30 | A kind of polycrystalline corundum abrasive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944725.XA CN109593515B (en) | 2017-09-30 | 2017-09-30 | A kind of polycrystalline corundum abrasive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109593515A true CN109593515A (en) | 2019-04-09 |
| CN109593515B CN109593515B (en) | 2021-06-22 |
Family
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112094512A (en) * | 2020-08-25 | 2020-12-18 | 贵阳明通炉料有限公司 | High-performance sialon corundum coating and preparation method thereof |
| CN115074088A (en) * | 2022-06-27 | 2022-09-20 | 荥阳龙升磨料有限公司 | Surface-plated white corundum abrasive and preparation method thereof |
| CN117821018A (en) * | 2024-03-01 | 2024-04-05 | 淄博市淄川金龙磨料磨具有限公司 | Preparation method of chrome corundum composite abrasive |
| CN118772583A (en) * | 2024-07-29 | 2024-10-15 | 武汉市汇达材料科技有限公司 | An epoxy resin-based white corundum repairing disc and its preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046924A (en) * | 1989-04-28 | 1990-11-14 | 诺顿公司 | The bonded abrasive article that contains the agglomerating sol gel alumina abrasive |
| CN103600307A (en) * | 2013-11-21 | 2014-02-26 | 江苏苏北砂轮厂有限公司 | Elastic resin grinding wheel |
| US20150183088A1 (en) * | 2012-07-31 | 2015-07-02 | Saint-Gobain Abrasives, Inc. | Abrasive wheels and methods for making and using same |
| CN107200596A (en) * | 2017-07-26 | 2017-09-26 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of corundum dry materials containing polycrystalline alumina fiber |
-
2017
- 2017-09-30 CN CN201710944725.XA patent/CN109593515B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046924A (en) * | 1989-04-28 | 1990-11-14 | 诺顿公司 | The bonded abrasive article that contains the agglomerating sol gel alumina abrasive |
| US5035723A (en) * | 1989-04-28 | 1991-07-30 | Norton Company | Bonded abrasive products containing sintered sol gel alumina abrasive filaments |
| US20150183088A1 (en) * | 2012-07-31 | 2015-07-02 | Saint-Gobain Abrasives, Inc. | Abrasive wheels and methods for making and using same |
| CN103600307A (en) * | 2013-11-21 | 2014-02-26 | 江苏苏北砂轮厂有限公司 | Elastic resin grinding wheel |
| CN107200596A (en) * | 2017-07-26 | 2017-09-26 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of corundum dry materials containing polycrystalline alumina fiber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112094512A (en) * | 2020-08-25 | 2020-12-18 | 贵阳明通炉料有限公司 | High-performance sialon corundum coating and preparation method thereof |
| CN115074088A (en) * | 2022-06-27 | 2022-09-20 | 荥阳龙升磨料有限公司 | Surface-plated white corundum abrasive and preparation method thereof |
| CN117821018A (en) * | 2024-03-01 | 2024-04-05 | 淄博市淄川金龙磨料磨具有限公司 | Preparation method of chrome corundum composite abrasive |
| CN118772583A (en) * | 2024-07-29 | 2024-10-15 | 武汉市汇达材料科技有限公司 | An epoxy resin-based white corundum repairing disc and its preparation method and application |
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| CN109593515B (en) | 2021-06-22 |
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Granted publication date: 20210622 |