CN104400673A - Method for manufacturing superhard grinding tool employing thermosetting ceramic as bonding agent - Google Patents

Method for manufacturing superhard grinding tool employing thermosetting ceramic as bonding agent Download PDF

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Publication number
CN104400673A
CN104400673A CN201410276079.0A CN201410276079A CN104400673A CN 104400673 A CN104400673 A CN 104400673A CN 201410276079 A CN201410276079 A CN 201410276079A CN 104400673 A CN104400673 A CN 104400673A
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CN
China
Prior art keywords
requiring
bonding agent
abrasive
ceramic
heat curing
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.)
Pending
Application number
CN201410276079.0A
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Chinese (zh)
Inventor
赵宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN YULANG CERAMICS NEW MATERIALS Co Ltd
Original Assignee
XI'AN YULANG CERAMICS NEW MATERIALS Co Ltd
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Application filed by XI'AN YULANG CERAMICS NEW MATERIALS Co Ltd filed Critical XI'AN YULANG CERAMICS NEW MATERIALS Co Ltd
Priority to CN201410276079.0A priority Critical patent/CN104400673A/en
Publication of CN104400673A publication Critical patent/CN104400673A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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
    • B24D3/04Physical 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
    • B24D3/14Physical 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 ceramic, i.e. vitrified bondings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING, OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent

Abstract

The invention relates to a method for manufacturing a superhard grinding tool employing thermosetting ceramic as a bonding agent. According to the method, a novel thermosetting ceramic material is used as a bonding agent; a hot press molding technology similar to that of thermosetting organic resin is adopted; compound design, grinding material weighing, alkali treatment of the grinding material, bonding agent adding, padding adding and even stirring are particularly carried out; hot press molding at the temperature ranging from 150 DEG C to 300 DEG C, demolding, trimming and other working procedures are carried out; and the superhard grinding tool employing thermosetting ceramic as the bonding agent is completely manufactured.

Description

A kind of preparation method of heat curing-type ceramic bond super-hard abrasive tool
Technical field:
This invention relates to a kind of preparation method of machining grinding tool.Be specifically related to a kind of new production method of super-hard abrasive tool.
Background technology:
Along with the development of science and technology, the continuous appearance of new material, machining is also at the development to high-quality, high accuracy, high efficiency, automation direction, and this also has higher requirement to the performance of super-hard abrasive tool.Resin anchoring agent diamond grinding wheel, because the temperature tolerance of organic resin is bad, easy carbonization, also more and more can not meet the requirement of modern processing, market is in the urgent need to high-performance ceramic anchoring agent diamond grinding wheel.
But because about 700 DEG C, diamond, cubic boron nitride are about 800 DEG C i.e. oxidable characteristics, make it have the restriction of special requirement, particularly firing temperature to the performance of vitrified bond, generally can not exceed the oxidizing temperature of abrasive material.And traditional vitrified bond needs the high-temperature firing of 1250-1300 degree, the particular/special requirement of the super hard abrasive such as diamond, cubic boron nitride can not be met.And industry technology personnel are in order to meet its particular/special requirement, modification is carried out to traditional ceramics bonding agent, to reduce firing temperature to about 700-800 DEG C, i.e. so-called Low-temperature vitrified bond, but the performance of ceramic material now has substantial degradation, be difficult to produce the desirable super-hard abrasive tool of performance, therefore Technique of Vitrified Diamond Wheels is not also widely used at present.Domestic skive is mainly resin and metallic bond, and the consumption of vitrified bond is also little.Its main cause is:
Diamond is generally namely oxidable at 700 DEG C, the general firing temperature of traditional vitrified bond is at 1250--1300 degree, for reducing refractoriness, introducing a large amount of alkaline material in bonding agent, obtaining so-called Low-temperature vitrified bond like this and generally also fire at about 700 DEG C, ceramic performance greatly reduces, sintering process is wayward, is difficult to produce desirable ceramic metal diamond grinding wheel, to meet the great demand in market, this contradiction also becomes an industry " difficult problem ", and long-standing problem industry development.For solving the problem, scientific worker is studied from many aspects, but the Main way studied in the industry at present still carries out limited modification to traditional ceramics bonding agent, does not have revolutionary new thinking, new theory, new material, new technology, has just been difficult to substantial breakthrough.
Summary of the invention:
In line with material composition, we determine that structure, structures shape performance, performance embody and are worth as thinking, theoretical for instructing with inorganic polymer, use for reference composite advantage, look for another way, start with from change material system, through long felt experiment, development & production goes out to have original only at about 200 DEG C namely curable ultralow temperature heat curing-type vitrified bonds (creativeness), well solves super-hard abrasive tool without this industry of desirable vitrified bond " difficult problem ".(practicality)
One, our ultralow temperature vitrified bond is low-temperature binder truly, and its porcelain temperature is only about 200 DEG C, there is no the report (novelty) of the vitrified bond being near or below it at present.Greatly can save energy consumption, decreasing pollution, enhance productivity.
Two, soft-pasteization in addition this material in porcelain process, have polycondensation phenomenon, have outside the advantage that traditional ceramics bonding agent has, also making the hold that also can improve while preventing diamond to be oxidized diamond abrasive.
Three, bonding agent is inorganic macromolecule material, not only has inorganic material behavior, also has certain organic material characteristic, and its good toughness feature can overcome the shortcoming that traditional ceramics bonding agent fragility is large.
Four, this bonding agent is soft-paste, can add certain organic material and realize composite modified, adjust in intensity, toughness etc., to better meet the needs of different workpieces.
Five, this material is chemical synthesis, reaches the restructuring of atom level, and 50% reaches nanoscale, can solve the technical barrier producing differentiating stage skive.
Six and traditional resin wheel production technology closely similar, without the need to carrying out large transformation to production equipment.
Seven, microwave porcelain can be realized, make production process more efficient, energy-conservation, clean.For grinding tool industry eliminates backward production, realize upgrading and transformation sustainable development and strong technical support is provided.
Beneficial effect: this heat curing-type vitrified bond is compared without the need to high-temperature firing with traditional Low-temperature vitrified bond, makes the production cycle of original needs about 15 days foreshorten to 1 hour, has greatly saved energy consumption, improve production efficiency.Compare with traditional resinoid bond, although technique is substantially identical, heat resistance can improve about 800 DEG C, substantially increases the service life of grinding tool and does not contain the harmful substance such as benzene, formaldehyde.Be enterprise transformation, the desirable route of product up-gradation, is reform the subversiveness of grinding tool industry traditional mode of production mode, causes very large repercussion in the industry.
Accompanying drawing illustrates: Fig. 1 is the process chart of preparation method.
Detailed description of the invention:
In long experiment, experimental basis, sum up heat curing-type vitrified bonded grinding tool and make new process:
This bonding agent is pure Inorganic synthese, has the characteristic of class thermosetting resin, but mobility is good not as good as organic resin, in hot-forming process, should suitable intensified pressure, and to improve mobility.
1. formula Design: according to the different requirements to grade of abrasive tool size, designs the formula of different proportion shared by super hard abrasive, heat curing-type vitrified bond, filler.
2. to weigh abrasive material.
3. alkali treatment abrasive material add bonding agent.(concrete grammar is attached)
4. add filler, stir.
5. hot pressing temperature 200--250 DEG C.
6. pressure is not less than 15--25 MPa.
7. according to workpiece size, heat-insulation pressure keeping about 35 minutes.Make shaping and solidification carry out simultaneously.As temperature retention time is short, also can baking oven regelate.
8. before 5,10 minutes, each venting 1 time.
9. after hot pressing completes, can be cool to about the 150 DEG C demouldings.And under being placed in slow cooling environment, to room temperature.
10. as directly and metallic matrix hot-forming, after hot pressing terminates, the demoulding immediately, and under being placed into rapidly slow cooling environment, to room temperature, preventing and MATRIX CRACKING.
11. matrixes need be slotted and are coated with silicone coupling agents treatment fluid.
The method of alkali treatment abrasive material
In order to improve hold, alkali treatment must be carried out to abrasive material, concrete grammar:
1, according to water: potassium hydroxide: abrasive material=3: 2: 5 batchings.
2, heat, stir, boil and boil.
3, boil boil to alkali lye will use up and not to the greatest extent time, stop heating.
4, add the water of the same amount again, stir 5 minutes, and filter lixiviating.(guaranteeing that abrasive surface is hygrometric state)
5, by the hygrometric state abrasive material after process, on a small quantity, repeatedly add in part bonding agent, do not stop to stir, avoid conglomeration.
6, again residue bonding agent directly added and stir.
7, finally filler added and stir.
8, as compound is moist, can at 150 DEG C of baking ovens dry 10 hours.(within first 1 hour, attention dispersion prevents conglomeration).

Claims (9)

1. take the hot press forming technology of organic resin, obtained ceramic phase is the super-hard abrasive tool workpiece of bonding agent.
2. described in requiring according to right 1, bonding agent is heat curing-type vitrified bond, and filler comprises metal powder, metallic fiber, mineral powder, mineral fibres, carborundum, tungsten carbide etc., can add the organic resins etc. such as polyimides as strengthened toughness.
3., described in requiring according to right 1, right 2,150-300 DEG C of temperature range hot pressing, shaping, solidification carries out mode simultaneously.
4., described in requiring according to right 1, right 2, pressure is between 10-25MPa.
5. described in requiring according to right 1, right 2, the appellation of " heat curing-type ceramic new material " and " heat curing-type vitrified bond ".
6., described in requiring according to right 1, right 2, working lining is bonding with matrix can be merged a step with hot-forming process and carry out.
7., described in requiring according to right 1, right 2, applicable abrasive material comprises corundum, carborundum, diamond, cubic boron nitride and CD etc.
8., described in requiring according to right 1, right 2, after hot pressing, also can continue solidification to enhance product performance, to enhance productivity by follow-up employing baking oven.
9. described in requiring according to right 1, right 2, the method for alkali treatment abrasive material.
CN201410276079.0A 2014-06-20 2014-06-20 Method for manufacturing superhard grinding tool employing thermosetting ceramic as bonding agent Pending CN104400673A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201410276079.0A CN104400673A (en) 2014-06-20 2014-06-20 Method for manufacturing superhard grinding tool employing thermosetting ceramic as bonding agent

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105108665A (en) * 2015-09-17 2015-12-02 苏州赛力精密工具有限公司 Ceramic bond abrasive disc and preparation method thereof
CN105773450A (en) * 2016-03-14 2016-07-20 宁波江东索雷斯电子科技有限公司 Method for preparing heat-resistant polyimide-diamond combined grinding wheel
CN109238849A (en) * 2018-09-18 2019-01-18 河南工业大学 A kind of detection method of vitrified bonded grinding tool performance
CN109238876A (en) * 2018-09-18 2019-01-18 河南工业大学 A kind of detection method of vitrified bond corundum grinding tool holding power
CN109794861A (en) * 2018-11-21 2019-05-24 郑州磨料磨具磨削研究所有限公司 A kind of extra hard material grinding wheel and preparation method thereof, extra hard material grinding wheel press-moulding die

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CN101927464A (en) * 2009-06-23 2010-12-29 黄曦 Preparation method of inorganic high molecular abrasive tool
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CN101570006A (en) * 2009-06-02 2009-11-04 深圳市常兴金刚石磨具有限公司 Process for producing ultrahard material ceramic abrasive tool by dry method
CN101927464A (en) * 2009-06-23 2010-12-29 黄曦 Preparation method of inorganic high molecular abrasive tool
US20110131889A1 (en) * 2009-12-02 2011-06-09 Saint-Gobain Abrasives, Inc. Bonded abrasive article and method of forming
CN103624695A (en) * 2013-12-13 2014-03-12 珠海市巨海科技有限公司 Super-hard ceramic bond abrasive tool and manufacturing method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105108665A (en) * 2015-09-17 2015-12-02 苏州赛力精密工具有限公司 Ceramic bond abrasive disc and preparation method thereof
CN105108665B (en) * 2015-09-17 2017-10-10 苏州赛力精密工具有限公司 A kind of vitrified bond mill and preparation method thereof
CN105773450A (en) * 2016-03-14 2016-07-20 宁波江东索雷斯电子科技有限公司 Method for preparing heat-resistant polyimide-diamond combined grinding wheel
CN109238849A (en) * 2018-09-18 2019-01-18 河南工业大学 A kind of detection method of vitrified bonded grinding tool performance
CN109238876A (en) * 2018-09-18 2019-01-18 河南工业大学 A kind of detection method of vitrified bond corundum grinding tool holding power
CN109794861A (en) * 2018-11-21 2019-05-24 郑州磨料磨具磨削研究所有限公司 A kind of extra hard material grinding wheel and preparation method thereof, extra hard material grinding wheel press-moulding die

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Application publication date: 20150311