CN101353258B - CBN grinding wheel of low temperature vitrified bond and preparation technique thereof - Google Patents
CBN grinding wheel of low temperature vitrified bond and preparation technique thereof Download PDFInfo
- Publication number
- CN101353258B CN101353258B CN 200810012675 CN200810012675A CN101353258B CN 101353258 B CN101353258 B CN 101353258B CN 200810012675 CN200810012675 CN 200810012675 CN 200810012675 A CN200810012675 A CN 200810012675A CN 101353258 B CN101353258 B CN 101353258B
- Authority
- CN
- China
- Prior art keywords
- bond
- abrasive material
- cbn
- blank
- sic
- 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.)
- Active
Links
Images
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A CBN grinding wheel of a low-temperature ceramic bond consists of a bond, auxiliary materials, an abrasive layer and a transition layer. The components and the proportion of the bond are 48-60% of SiO2, 25-37% of Al2O3, 5-10% of Na2O and 3-7% of Li2O; the components and the proportion of the abrasive layer are 23-40% of CBN and 23-40% of SiC, 20.3-29.8% of the bond, 0.1-0.3% of dextrin powder and 0.1-0.2% of walnut powder; and the components and the proportion of the transition layer are 64-76% of the SiC, 21.9-32.9% of the bond and 0.1-0.2% of the dextrin powder. By adopting the technical processes of mixing materials, molding a blank of the abrasive layer by compression, sintering the blank of the abrasive layer, configuring, determining and processing the dimension of matrix bond, bonding the abrasive layer with the matrix, carrying out rotation test, trimming the external circle and end face of the abrasive layer, inspecting the abrasive layer of the grinding wheel, carrying out dynamic balancing, processing the appearance, and the like, and by reducing the firing temperature of the ceramic bond, the problem that burning loss happens easily due to oxidation of the abrasive is solved, and the strength of the product is improved.
Description
Technical field:
The present invention relates to grinding tool and grinding technique field, particularly a kind of CBN emery wheel and preparation technology thereof of Low-temperature vitrified bond.
Background technology:
We recognize that the CBN abrasive material is a kind of superhard material, and it plays main ablation as abrasive material in emery wheel, and the quality of abrasive material directly affects a lot of performance indications of emery wheel.But main in the emery wheel structure is its institutional framework, is bond.The effect of bond is to disperse, control the CBN abrasive material.The CBN emery wheel in past is because its insufficient strength, and abrasive material comes off easily, the grinding wheel shape that is hard to keep, and easily cause the obstruction of emery wheel.In addition, general ceramic sintering temperature is more than 1200 ℃, because the anti-burning temperature of CBN abrasive material self is 1000 ℃, although the theoretical heat resisting temperature of CBN abrasive material is 1000 ℃, the CBN abrasive material just produces micro-oxidation since 700 ℃, easily causes scaling loss.
Summary of the invention
For overcoming the defective that exists in the prior art, the invention provides a kind of CBN emery wheel and preparation technology thereof of Low-temperature vitrified bond, reduce the firing temperature of vitrified bond, improve bond to CBN emery wheel and the preparation technology thereof of the Low-temperature vitrified bond of the wetability of abrasive material, matrix hardness, wearability etc.
For reaching above goal of the invention, the technical scheme that the present invention takes is: a kind of CBN emery wheel CBN emery wheel of Low-temperature vitrified bond is made of bond, auxiliary material, mill layer, transition zone.The composition of bond and ratio are: SiO
248～60%, Al
2O
325～37%, Na
2O 5～10%, Li
2O 3～7%; The batching of abrasive material and ratio: CBN 23～40%, SiC 23～40%; Bond 20.3～29.8%, dextrine powder 0.1～0.3%, walnut powder 0.1～0.2%; The batching of transition zone and ratio: SiC 64～76%, bond 21.9～32.9%, dextrine powder 0.1～0.2%.
The preparation technology of the CBN emery wheel of Low-temperature vitrified bond,, abrasive material blank sintering compressing through mixing material, abrasive material blank, matrix viscose glue size be real join determine and processing, abrasive material with matrix is bonding, turning test, abrasive material cylindrical and end face finishing, the inspection of the grinding-wheel grinder bed of material, dynamic balancing, outward appearance processing, final inspection.Mixed CBN abrasive material and SiC transition zone molding mass according to the weighing of moulding substance, are dropped into respectively moulding in the grinding tool sequentially.Wherein compressing characteristics are: with the moulding of pressure forming machine compacting emery wheel blank, adopt the voltage limiting mode controlled pressure in claimed range, to reach the density of control product abrasive material; The special grinding apparatus that certain taper is all arranged with overcoat and core bar, the residual stress when reducing the blank mould unloading; Adopt the method for layering compacting, solve the problem that pressure conduction does not freely reach Density inhomogeneity.Wherein the firing process characteristics are: the temperature curve control mode is adopted in burning till of ceramic CBN emery wheel; The sintering temperature of the sintering temperature of CBN, pottery all is controlled at below 1000 ℃; Adopt the baking modes of inert gas shielding, make the CBN abrasive material not oxidized under hot conditions.
The invention has the beneficial effects as follows: by reducing the firing temperature of vitrified bond, saved the CBN abrasive material and just produced micro-oxidation since 700 ℃, easily caused the problem of scaling loss.The bond firing temperature is low, and is so that intensity is high, good to the abrasive material wetability, bonding streng is high.Because selecting at abrasive material, the unlike material that adopts, the abrasive material of different cultivars mix the mode of using, for example in the CBN emery wheel, add a certain proportion of diamond, improved the intensity of product, can improve the grinding tool part defective in use of using single abrasive material, play the effect that improves grinding.
Description of drawings
Fig. 1 is preparation technology's flow chart of the CBN emery wheel of Low-temperature vitrified bond.
The specific embodiment
The CBN emery wheel CBN emery wheel of Low-temperature vitrified bond, the composition of bond and ratio are:
SiO
2 48～60％ Al
2O
3 25～37％
Na
2 O 5～10％ Li
2O 3～7％
The batching of abrasive material and ratio are:
CBN 23～40％ SiC 23～40％
Bond 20.3～29.8% dextrine powders 0.1～0.3%
Walnut powder 0.1～0.2%
The batching of transition zone and ratio are:
SiC 64～76% bonds 21.9～32.9%
Dextrine powder 0.1～0.2%
Selecting of abrasive material, can adopt the abrasive material of unlike material, different cultivars to mix use, as can in described CBN emery wheel, adding a certain proportion of diamond.
The step of preparation process of the CBN emery wheel of Low-temperature vitrified bond: mixing material → abrasive material blank is compressing → abrasive material blank sintering → matrix viscose glue size real join determine and processing → abrasive material and matrix bonding → turning test → abrasive material cylindrical and end face finishing → grinding-wheel grinder bed of material inspection → dynamic balancing → outward appearance processing → final inspection, mixed CBN abrasive material and SiC transition zone molding mass according to the weighing of moulding substance, are dropped into respectively moulding in the grinding tool sequentially.
Embodiment 1
CBN:37.83%, SiC:38.94%, bond: 22.93%, dextrine powder: 0.2%, walnut powder: 0.1%.The three-point bending resistance intensity of the abrasive material of mentioned component proportioning is 95.2MPa.
CBN:35.57%, SiC:35.73%, bond: 28.5%, dextrine powder: 0.1%, walnut powder: 0.1%.
The three-point bending resistance intensity of the abrasive material of mentioned component proportioning is 105.4MPa.
Because the anti-burning temperature of CBN abrasive material self is 1000 ℃, thus we in the sintering temperature curve of design, the highest sintering temperature is 750 ℃, sintering curre is:
20℃(80min)80℃(120min)150℃(150min)500℃(180min)500℃(60min)600℃(60min)600℃(120min)750℃(120min)750℃(0min)
Yet general ceramic sintering temperature is all more than 1200 ℃, and we have designed the high strength bond agent that is fit to do ceramic CBN emery wheel under 750 ℃.
The baking modes that has adopted property gas (nitrogen) protection lazy guarantees that the CBN abrasive material is not oxidized under hot conditions.
Claims (2)
1. the CBN emery wheel of a Low-temperature vitrified bond is made of bond, auxiliary material, abrasive material, transition zone, it is characterized in that:
The composition of bond and ratio are:
SiO
2 48～60％ Al
2O
3 25～37％
Na
2O 5～10％ Li
2O 3～7％
The batching of abrasive material and ratio are:
CBN 23～40％ SiC 23～40％
Bond 20.3～29.8% dextrine powders 0.1～0.3%
Walnut powder 0.1～0.2%
The batching of transition zone and ratio are:
SiC 64～76% bonds 21.9～32.9%
Dextrine powder 0.1～0.2%.
2. preparation technology who makes the CBN emery wheel of Low-temperature vitrified bond as claimed in claim 1, comprise: mixing material, abrasive material blank are compressing, abrasive material blank sintering, matrix viscose glue size real join determine and processing, abrasive material with matrix is bonding, turning test, abrasive material cylindrical and end face finishing, the inspection of the grinding-wheel grinder bed of material, dynamic balancing, outward appearance processing, final inspection, it is characterized in that: with mixed CBN abrasive material and SiC transition zone molding mass according to the weighing of moulding substance, drop into respectively sequentially moulding in the grinding tool, wherein:
A. sintering curre is:
20℃(80min)80℃(120min)150℃(150min)500℃(180min)500℃(60min)
600℃(60min)600℃(120min)750℃(120min)750℃(0min)；
The sintering temperature of the sintering temperature of B.CBN, pottery all is controlled at below 1000 ℃;
C. adopt the baking modes of inert gas shielding;
Compressing characteristics:
A. with the moulding of pressure forming machine compacting emery wheel blank, adopt the voltage limiting mode controlled pressure in claimed range, to reach the density of control product abrasive material;
B., the special grinding apparatus that certain taper is all arranged with overcoat and core bar, the residual stress when reducing the blank mould unloading;
C. adopt the method for layering compacting, solve the problem that pressure conduction does not freely reach Density inhomogeneity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810012675 CN101353258B (en) | 2008-08-07 | 2008-08-07 | CBN grinding wheel of low temperature vitrified bond and preparation technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810012675 CN101353258B (en) | 2008-08-07 | 2008-08-07 | CBN grinding wheel of low temperature vitrified bond and preparation technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101353258A CN101353258A (en) | 2009-01-28 |
| CN101353258B true CN101353258B (en) | 2013-04-24 |
Family
ID=40306314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810012675 Active CN101353258B (en) | 2008-08-07 | 2008-08-07 | CBN grinding wheel of low temperature vitrified bond and preparation technique thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101353258B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009392B (en) * | 2009-09-04 | 2012-07-04 | 沈阳中科超硬磨具磨削研究所 | Technology for producing CBN (Cubic Boron Nitride) high-speed ceramics grinding wheel |
| CN102009393B (en) * | 2009-09-04 | 2012-07-18 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of high-speed grinding CBN (Cubic Boron Nitride) ceramic grinding wheel |
| CN102059658B (en) * | 2009-11-13 | 2014-07-30 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of CBN (cubic boron nitride) ceramic grinding wheel for wholly grinding end surface and outer circle of crank shaft flange |
| CN102059663B (en) * | 2009-11-13 | 2014-08-13 | 沈阳中科超硬磨具磨削研究所 | Preparation technology of CBN (cubic boron nitride) micro ceramic grinding wheel for grinding automobile fuel injection nozzle |
| CN101913122B (en) * | 2010-07-21 | 2011-12-21 | 安泰科技股份有限公司 | Method for preparing ceramic bond super-hard abrasive tool |
| CN102729157B (en) * | 2012-06-19 | 2015-02-11 | 南京航空航天大学 | Cubic boron nitride grinding wheel with abrasive particles distributed sequentially in three dimensions and manufacturing method thereof |
| CN103551996B (en) * | 2013-10-28 | 2016-04-20 | 博深工具股份有限公司 | A kind of ceramic base diamond grinding block and preparation method |
| CN103770023A (en) * | 2014-01-10 | 2014-05-07 | 当涂县南方红月磨具磨料有限公司 | Composite binding agent type cubic boron nitride grinding wheel |
| CN105505313A (en) * | 2015-11-25 | 2016-04-20 | 江苏仓环铜业股份有限公司 | An abrasive used for cutter polishing or passivating |
| CN106623947B (en) * | 2016-12-06 | 2018-10-30 | 中国西电电气股份有限公司 | A kind of copper tungsten contact and preparation method thereof |
| CN108747854B (en) * | 2018-06-29 | 2020-09-25 | 江苏赛扬精工科技有限责任公司 | Ceramic bond diamond grinding wheel with low-temperature thermosetting type adhesion layer and preparation method thereof |
| CN108972923A (en) * | 2018-08-23 | 2018-12-11 | 沈阳中科超硬磨具磨削研究所 | A kind of ultra-thin cast-cutting saw slice of high-precision resin |
| CN110000720A (en) * | 2019-04-23 | 2019-07-12 | 山西钜星超硬工具制品有限公司 | A kind of hard grinding wheel production method |
| CN112388522A (en) * | 2019-08-12 | 2021-02-23 | 南昌巨晶砂轮科技有限公司 | Preparation method of grinding tool for grinding arc teeth |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060669A (en) * | 1990-10-17 | 1992-04-29 | 西北工业大学 | Ceramic binder cubic boron nitride compound emery wheel and grinding fluid thereof |
| CN1205262A (en) * | 1998-07-24 | 1999-01-20 | 中国科学院上海硅酸盐研究所 | Ultrahard compounded tool, its prepn. method and application |
| CN101037325A (en) * | 2007-03-27 | 2007-09-19 | 天津瑞祺超硬材料磨具有限公司 | Cube nitrification borax wheel ceramic combination agent |
| CN101204794A (en) * | 2007-12-03 | 2008-06-25 | 南京航空航天大学 | High temperature soldering CBN grinding wheel used metal combination dose layer material adding rare earths La |
-
2008
- 2008-08-07 CN CN 200810012675 patent/CN101353258B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060669A (en) * | 1990-10-17 | 1992-04-29 | 西北工业大学 | Ceramic binder cubic boron nitride compound emery wheel and grinding fluid thereof |
| CN1205262A (en) * | 1998-07-24 | 1999-01-20 | 中国科学院上海硅酸盐研究所 | Ultrahard compounded tool, its prepn. method and application |
| CN101037325A (en) * | 2007-03-27 | 2007-09-19 | 天津瑞祺超硬材料磨具有限公司 | Cube nitrification borax wheel ceramic combination agent |
| CN101204794A (en) * | 2007-12-03 | 2008-06-25 | 南京航空航天大学 | High temperature soldering CBN grinding wheel used metal combination dose layer material adding rare earths La |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101353258A (en) | 2009-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101353258B (en) | CBN grinding wheel of low temperature vitrified bond and preparation technique thereof | |
| CN101935219B (en) | Efficient silicon carbide corundum rare earth ceramic composite grinding wheel and manufacture method thereof | |
| CN102363578B (en) | Ceramic binder for steel ball grinding wheel | |
| CN106863152B (en) | Metal bonding agent, diamond grinding wheel prepared by adopting metal bonding agent and manufacturing method of diamond grinding wheel | |
| CN102009393B (en) | Preparation technology of high-speed grinding CBN (Cubic Boron Nitride) ceramic grinding wheel | |
| CN101481597B (en) | Normal atmosphere sintering method for magnetic grinding medium | |
| CN106219983B (en) | A kind of sintering temperature and low devitrified glass bonding agent and preparation method thereof | |
| CN107214634B (en) | A kind of skive and preparation method thereof | |
| CN106891272A (en) | A kind of vitrified bond high-performance CBN emery wheels based on strong electromagnetic and preparation method thereof | |
| CN105619266A (en) | Low-temperature sintering ceramic binding agent, grinding wheel and preparation method thereof | |
| CN101186521B (en) | Ceramic bonding agent air hole grinding wheel and preparation method | |
| CN104669129A (en) | Ceramics titanizing CBN (cubic boron nitride) grinding wheel and preparation method thereof | |
| CN106116579A (en) | A kind of high-strength diamond based composite ceramic material | |
| CN103522207A (en) | Ceramic bonding agent containing rare-earth metal | |
| CN106541339B (en) | A kind of preparation process of cubic boron nitride accumulation abrasive material | |
| CN109773673B (en) | Preparation method of ceramic bond diamond grinding wheel | |
| CN109015420A (en) | A kind of measuring tool processing grinding abrasive disk | |
| CN205953917U (en) | Prepare wear -resisting attrition medium of superfine coal slurry | |
| CN102059663B (en) | Preparation technology of CBN (cubic boron nitride) micro ceramic grinding wheel for grinding automobile fuel injection nozzle | |
| CN103570350B (en) | Preparation method of CBN ceramic high-speed grinding wheel used for high-speed grinding of air valve of internal combustion locomotive | |
| CN103331703A (en) | CBN product metallic bond and production method thereof | |
| CN107540375A (en) | A kind of low-temperature high-strength devitrified glass and its diamond composite | |
| CN103253936B (en) | Medical-stone-doped yttria-stabilized zirconia health care ball formula and manufacturing method thereof | |
| CN105903972A (en) | Diamond compact and preparation method thereof | |
| WO2014123153A1 (en) | Alumina sintered body, abrasive grains, grindstone, polishing cloth, and method for manufacturing alumina sintered body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |