CN105084877A - Preparation method for ceramic binder used for rapid synthesis of CBN abrasive tools by microwave method - Google Patents
Preparation method for ceramic binder used for rapid synthesis of CBN abrasive tools by microwave method Download PDFInfo
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Abstract
The invention relates to a preparation method for a ceramic binder used for rapid synthesis of CBN abrasive tools by a microwave method, belonging to the field of preparation of binders. The preparation method comprises the following steps: a, by mass, weighing 45 to 70% of silica acid or silicon dioxide, 3 to 10% of aluminium hydroxide or aluminium oxide, 5 to 15% of anhydrous sodium carbonate or sodium oxide and 5 to 20% of boric acid or diboron trioxide, carrying out uniform mixing and grinding, and carrying out sieving with a 200-to-300-mesh sieve so as to prepare a mixed material; b, melting the mixed material prepared in the step a and then carrying out water quenching, wherein melting conditions are as follows: carrying out heating to 1300 to 1500 DEG C with a rate of 10 DEG C/min and then carrying out melting for 2 to 5 h; c, drying a product prepared in the step b at 100 to 150 DEG C for 4 to 8 h, then carrying out grinding, and carrying out sieving with the 200-to-300-mesh sieve so as to prepare a basic ceramic binder; and d, subjecting the basic ceramic binder prepared in the step c to pressing molding into a blank with a presser, and carrying out sintering with a microwave sintering furnace so as to prepare the ceramic binder. The method provided by the invention has the characteristics of low reaction temperature, short reaction time, low production cost, energy conservation, etc., and is easy to realize industrial production.
Description
Technical field
The invention provides a kind of preparation method of microwave method Fast back-projection algorithm CBN grinding tool ceramic bond, belong to bonding agent preparing technical field.
Background technology
Ceramic bond has controlled void content, good thermostability and chemical stability, is widely used at a high speed, the machine-shaping of the CBN grinding tool of efficient, high-precision grinding.Vitrified Bond CBN Tools not only cut sharp, grinding force is little, production efficiency is high, long service life, be easy to shaping and dressing, grinding accuracy is high, and during grinding, workpiece temperature is low, can eliminate residual tension.Can the quality of ceramic bond performance be directly connected to CBN abrasive particle premium properties and be fully played, thus finally have influence on the ground effect of CBN emery wheel.So ceramic bond is one of key factor of research Vitrified Bond CBN Tools.
The intensity of ceramic bond is the important factor affecting the use of CBN grinding tool.The intensity of bonding agent mainly comprises the content of two aspects: one is the intensity of bonding agent itself, and two is the bonding strengs between bonding agent and abrasive particle.If insufficient strength, emery wheel easily produces revolution and breaks, and makes the person and device security be subject to great threat.CBN grinding tool requires that ceramic bond used must can form very firmly bonding agent bridge, and has good bonding streng to abrasive particle, otherwise the high rigidity of CBN abrasive material just has no way of embodying.
The refractoriness of ceramic bond is one of main performance index of bonding agent, and the refractoriness as bonding agent is too high, and the degree that sinters when burning till is poor, it and abrasive particle bond loosely, affect hardness and the intensity of grinding tool, very sensitive to the fluctuation of firing temperature, make grade of abrasive tool unstable; Contrary as too low in bonding agent refractoriness, when burning till, the viscosity of liquid phase is little again, and grinding tool will be caused to be out of shape foaming.The principal element affecting bonding agent refractoriness is chemical composition and raw material granularity.Bonding agent granularity is thinner, and dispersity is larger, and response capacity is stronger, can cause the reduction of refractoriness.
Traditional normal pressure-sintered legal system is high for sintering temperature needed for ceramic bond, obtained ceramic bond intensity is low, shock resistance, anti-fatigue performance are poor, in order to improve its performance and avoid high temperature sintering to the injury of CBN abrasive material, everybody studies Low-temperature high-strength ceramic bond one after another at present, to realize the easy fired of grinding tool.Compared with normal pressure-sintered, microwave sintering can quickly and evenly heating material and can not cause bonding agent ftracture or in bonding agent, form thermal stresses, bonding agent inside is made to form uniform fine crystalline structure, and then improve the performance of ceramic bond, strengthen the intensity of CBN grinding tool, improve use and the processing characteristics of grinding tool, reach the preparation object of low-temperature high-strength CBN grinding tool ceramic bond.In addition, adopt microwave sintering to reduce sintering temperature, shorten sintering time, and the ceramic structure of preparation is even, fine and close.
Therefore, in order to improve the performance of Vitrified Bond CBN Tools better, obtaining Low-temperature high-strength ceramic bond CBN grinding tool, being necessary to explore a kind of preparation method realizing low temperature, Fast back-projection algorithm ceramic bond.
Summary of the invention
The object of the present invention is to provide a kind of novel method of Fast back-projection algorithm CBN grinding tool ceramic bond, better to meet the application of ceramic bond in CBN grinding tool, make the Low-temperature high-strength ceramic bond obtained
cbN grinding tool more easy to reach at a high speed, the condition of efficient, high-precision grinding.The method has save energy, reduces production cost, and the feature such as technique is simple.
The synthetic method of CBN grinding tool ceramic bond of the present invention comprises the following steps:
A, by mass percentage get 45 ~ 70% silicic acid or silicon-dioxide, 3 ~ 10% aluminium hydroxide or aluminium sesquioxide, 5 ~ 15% anhydrous sodium carbonate or sodium oxide and 5 ~ 20% boric acid or boron trioxide mixing, 200 ~ 300 mesh sieves are crossed, obtained compound after grinding;
B, by shrend after compound melting obtained for step a, the condition of melting used is: with the ramp of 10 DEG C/min to melting 2 ~ 5h after 1300 ~ 1500 DEG C;
C, product dry 4 ~ 8h at 100 ~ 150 DEG C that step b is obtained, grinding, crosses 200 ~ 300 mesh sieves, obtained basic ceramic bond;
D, basic ceramic bond press obtained for step c is pressed into blank, sinters with microwave agglomerating furnace, obtained ceramic bond of the present invention.
Mixing of the present invention, ball milling carry out in a kind of equipment in high energy ball mill, rotary mill and shredder.
The smelting temperature of bonding agent of the present invention is 1300 ~ 1500 DEG C, and smelting time is 2 ~ 5h.
Drying plant of the present invention is any one equipment in air dry oven and vacuum drying oven.
The drying temperature of bonding agent of the present invention is 100 ~ 150 DEG C, and time of drying is 4 ~ 8h.。
The agglomerating plant of described bonding agent of the present invention is microwave agglomerating furnace.
The present invention compares the existing method preparing CBN grinding tool ceramic bond, has following beneficial effect:
(1) firing temperature is even.Microwave sintering method has the effect of inside and outside Synchronous Heating, microwave sintering can quickly and evenly heating material and can not cause bonding agent ftracture or in bonding agent, form thermal stresses.
(2) temperature of reaction is low, and the reaction times is short, save energy.The method of relative conventional atmospheric sintered ceramic bonding agent, this synthetic method significantly can reduce temperature of reaction, Reaction time shorten, effective save energy.
(3) excellent performance, has a extensive future: the CBN grinding tool ceramic bond that reaction generates, and bending strength is large, hardness is high, it is large to burn till density.In addition, the ceramic bonding agent air hole that this method obtains is even, and between abrasive particle, hold is large, and obtained grinding tool grinding performance is good, has a extensive future.
Embodiment
The present invention is further described below with reference to embodiment:
Embodiment 1:
Take silicon-dioxide 34.8g, aluminium hydroxide 9.36g, sodium oxide 12.4g and boric acid 19.8g analytical pure by weight, after sufficiently mixing, cross 200 mesh sieves, then compound is elevated to 1500 DEG C by certain temperature rise rate, and is incubated 2 ~ 5h.After water-cooled, drying, fragmentation, ball milling, obtained basic ceramic bond.The techniques such as repressed, dry, microwave firing, measure refractoriness and the folding strength of bonding agent respectively.Result shows: the refractoriness of bonding agent is 500 ~ 600 DEG C, and folding strength is 55 ~ 110MPa.
Embodiment 2:
Take silicic acid 61.8g, aluminium hydroxide 11.5g, anhydrous sodium carbonate 17.0g and boron trioxide 27.5g analytical pure by weight, after sufficiently mixing, cross 300 mesh sieves, then compound is elevated to 1400 DEG C by certain temperature rise rate, and is incubated 2 ~ 5h.After water-cooled, drying, fragmentation, ball milling, obtained basic ceramic bond.The techniques such as repressed, dry, microwave firing, measure refractoriness and the folding strength of bonding agent respectively.Result shows: the refractoriness of bonding agent is 500 ~ 600 DEG C, and folding strength is 55 ~ 110MPa.
Embodiment 3:
Take silicon-dioxide 53.65g, aluminium sesquioxide 7.66g, sodium oxide 12.25g and boric acid 20.86g analytical pure by weight, after sufficiently mixing, cross 200 mesh sieves, then compound is elevated to 1300 DEG C by certain temperature rise rate, and is incubated 2 ~ 5h.After water-cooled, drying, fragmentation, ball milling, obtained basic ceramic bond.The techniques such as repressed, dry, microwave firing, measure refractoriness and the folding strength of bonding agent respectively.Result shows: the refractoriness of bonding agent is 500 ~ 600 DEG C, and folding strength is 55 ~ 110MPa.
Embodiment 4:
Take silicic acid 42.9g, aluminium hydroxide 7.0g, anhydrous sodium carbonate 19.2g and boric acid 40.8g analytical pure by weight, after sufficiently mixing, cross 300 mesh sieves, then compound is elevated to 1300 DEG C by certain temperature rise rate, and is incubated 2 ~ 5h.After water-cooled, drying, fragmentation, ball milling, obtained basic ceramic bond.The technique such as repressed, dry, to burn till, measures the refractoriness of bonding agent, mobility and folding strength respectively.The refractoriness of result display bonding agent is 500 ~ 600 DEG C, and folding strength is 55 ~ 110MPa.
Claims (6)
1. a preparation method for microwave method Fast back-projection algorithm CBN grinding tool ceramic bond, is characterized in that: described synthetic method comprises the following steps:
A, by mass percentage get 45 ~ 70% silicic acid or silicon-dioxide, 3 ~ 10% aluminium hydroxide or aluminium sesquioxide, 5 ~ 15% anhydrous sodium carbonate or sodium oxide and 5 ~ 20% boric acid or boron trioxide mixing, 200 ~ 300 mesh sieves are crossed, obtained compound after grinding;
B, by shrend after compound melting obtained for step a, the condition of melting used is: with the ramp of 10 DEG C/min to melting 2 ~ 5h after 1300 ~ 1500 DEG C;
C, product dry 4 ~ 8h at 100 ~ 150 DEG C that step b is obtained, grinding, crosses 200 ~ 300 mesh sieves, obtained basic ceramic bond;
D, basic ceramic bond press obtained for step c is pressed into blank, sinters with microwave agglomerating furnace, obtained ceramic bond of the present invention.
2. synthetic method according to claim 1, is characterized in that: described mixing, ball milling carry out in a kind of equipment in high energy ball mill, rotary mill and shredder.
3. synthetic method according to claim 1, is characterized in that: the smelting temperature of described bonding agent is 1300 ~ 1500 DEG C, and smelting time is 2 ~ 5h.
4. synthetic method according to claim 1, is characterized in that: described drying plant is any one equipment in air dry oven and vacuum drying oven.
5. synthetic method according to claim 1, is characterized in that: the drying temperature of described bonding agent is 100 ~ 150 DEG C, and time of drying is 4 ~ 8h.
6. synthetic method according to claim 1, is characterized in that: the agglomerating plant of described bonding agent is microwave agglomerating furnace.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972371A (en) * | 2018-08-23 | 2018-12-11 | 沈阳中科超硬磨具磨削研究所 | A kind of vitrified bond containing base plate glass |
| CN109531445A (en) * | 2018-12-28 | 2019-03-29 | 山东泰广奕砂轮有限公司 | A kind of high abrasion vitrified CBN wheel bonding agent |
| CN109773673A (en) * | 2019-02-20 | 2019-05-21 | 常州兆威不锈钢有限公司 | A kind of preparation method of Technique of Vitrified Diamond Wheels |
| CN110614592A (en) * | 2019-08-19 | 2019-12-27 | 沈阳中科超硬磨具磨削研究所 | Preparation method of microwave ceramic bonding agent |
| CN110640639A (en) * | 2019-09-29 | 2020-01-03 | 河南工业大学 | Preparation method of metal binding agent diamond product |
| CN112659000A (en) * | 2020-12-23 | 2021-04-16 | 中国有色桂林矿产地质研究院有限公司 | Cluster type inorganic bonding agent and preparation method thereof |
| CN112775857A (en) * | 2020-12-30 | 2021-05-11 | 佛山市三水日邦化工有限公司 | Preparation method of crystallized ceramic bond grinding tool |
| CN118005420A (en) * | 2024-02-06 | 2024-05-10 | 杭州芯研科半导体材料有限公司 | Preparation method of Cu-MOF modified ceramic bond diamond grinding wheel block |
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| CN101993249A (en) * | 2010-10-26 | 2011-03-30 | 河南工业大学 | Preparation method of ceramic bond for low-temperature high-strength cubic boron nitride (CBN) grinding tool |
| CN103624696A (en) * | 2013-12-16 | 2014-03-12 | 珠海市钜鑫科技开发有限公司 | Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool |
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| CN101993249A (en) * | 2010-10-26 | 2011-03-30 | 河南工业大学 | Preparation method of ceramic bond for low-temperature high-strength cubic boron nitride (CBN) grinding tool |
| CN103624696A (en) * | 2013-12-16 | 2014-03-12 | 珠海市钜鑫科技开发有限公司 | Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972371A (en) * | 2018-08-23 | 2018-12-11 | 沈阳中科超硬磨具磨削研究所 | A kind of vitrified bond containing base plate glass |
| CN109531445A (en) * | 2018-12-28 | 2019-03-29 | 山东泰广奕砂轮有限公司 | A kind of high abrasion vitrified CBN wheel bonding agent |
| CN109773673A (en) * | 2019-02-20 | 2019-05-21 | 常州兆威不锈钢有限公司 | A kind of preparation method of Technique of Vitrified Diamond Wheels |
| CN109773673B (en) * | 2019-02-20 | 2021-09-17 | 上海邦佳实业有限公司 | Preparation method of ceramic bond diamond grinding wheel |
| CN110614592A (en) * | 2019-08-19 | 2019-12-27 | 沈阳中科超硬磨具磨削研究所 | Preparation method of microwave ceramic bonding agent |
| CN110640639A (en) * | 2019-09-29 | 2020-01-03 | 河南工业大学 | Preparation method of metal binding agent diamond product |
| CN112659000A (en) * | 2020-12-23 | 2021-04-16 | 中国有色桂林矿产地质研究院有限公司 | Cluster type inorganic bonding agent and preparation method thereof |
| CN112775857A (en) * | 2020-12-30 | 2021-05-11 | 佛山市三水日邦化工有限公司 | Preparation method of crystallized ceramic bond grinding tool |
| CN118005420A (en) * | 2024-02-06 | 2024-05-10 | 杭州芯研科半导体材料有限公司 | Preparation method of Cu-MOF modified ceramic bond diamond grinding wheel block |
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