CN1331811C - Ceramic sintered silicon carbide granular grinding block and its manufacturing method - Google Patents

Ceramic sintered silicon carbide granular grinding block and its manufacturing method Download PDF

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Publication number
CN1331811C
CN1331811C CNB2005101003775A CN200510100377A CN1331811C CN 1331811 C CN1331811 C CN 1331811C CN B2005101003775 A CNB2005101003775 A CN B2005101003775A CN 200510100377 A CN200510100377 A CN 200510100377A CN 1331811 C CN1331811 C CN 1331811C
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China
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ceramic particle
silicon carbide
ceramic
particle piece
grinding block
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CNB2005101003775A
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Chinese (zh)
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CN1785901A (en
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尹育航
孙文伟
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广东奔朗超硬材料制品有限公司
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Abstract

The present invention relates to a making method of ceramic sintered silicon carbide particle abrasive blocks, which comprises the making of ceramic particle blocks and the making of abrasive blocks, wherein the making of ceramic particle blocks comprises: 1. compounding: a ceramic fusion block is used as a binding agent, the ceramic fusion block is ground into powder by a grinder to be mixed with silicon carbide micropowder, dextrin is used as an adhesive, and the weight ratio of the ceramic fusion block to silicon carbide to dextrin is 1 to 1.1:7 to 9:0.3 to 0.5; the mixed materials are uniformly stirred by a stirrer; 2. forming: the mixed materials are injected into a ceramic particle block forming mould to be formed by pressing by a pressing machine; 3. sintering: the formed ceramic particle blocks are sent into a calcination chamber to be burned, the temperature is controlled to be between 1000 DEG C to 1100 DEG C and preserved for 3 to 5 hours, and finally, the ceramic particle blocks with the rockwell hardness range from 60 to 90 are obtained. The present invention has the advantages of simple making process, low cost and high work efficiency.

Description

Ceramic sintered silicon carbide granular grinding block and preparation method thereof

Technical field

The present invention relates to a kind of silicon carbide grinding block, particularly relate to a kind of ceramic sintered silicon carbide granular grinding block and preparation method thereof.

Background technology

Silicon carbide grinding block is a kind of grinding tool that is used for polished tile, stone surface polishing.Traditional silicon carbide grinding block is to make wedding agent with chloro-magnesium cement, and silicon carbide micro-powder is done abrasive material, adds some modification subsidiary material in addition in conjunction with what make, is characterized in that cost is low, and production technique is simple.But it has a fatal shortcoming: the rate of wear is fast, and work-ing life is short.When reality is used, have to often change silicon carbide grinding block owing to wearing and tearing, and it is all very long to change and adjust the shared time of silicon carbide grinding block, thereby directly has influence on corresponding grinding progress, and because of the also serious environment pollution of the back waste that produces that weares and teares.

Summary of the invention

The object of the present invention is to provide that a kind of manufacture craft is simple, with low cost, the ceramic sintered silicon carbide granular grinding block of high efficiency and preparation method thereof, to overcome weak point of the prior art.

Summary of the invention

Press the making method of a kind of ceramic sintered silicon carbide granular grinding block of this purpose design, it is characterized in that the making of described ceramic sintered silicon carbide granular grinding block comprises the preparation of ceramic particle piece and the preparation of abrading block:

The preparation of ceramic particle piece comprises the following aspects:

1) batching:

Adopt the preparing ceramic clinker close to make wedding agent, preparing ceramic clinker is become powder with ball mill grinding, mix by a certain percentage, make binding agent with dextrine powder with silicon carbide micro-powder with porcelain floor tile; Weight ratio between them is:

Preparing ceramic clinker: silicon carbide: dextrin=1~1.1: 7~9: 0.3~0.5;

With stirrer above compound is stirred;

2) moulding:

Above-mentioned compound is injected in the ceramic particle block forming die, and with its compression moulding, wherein pressing machine adopts about 200 tons semi-automatic press by pressing machine, and the pressure of press is controlled at about 3~4 MPas;

According to the needs of product, adopt different moulds, can obtain the ceramic particle piece of different shape and different size,

Ceramic particle piece cross section is that trilateral, tetragon, circle, ellipse or other Polygons combine with arcual, or arc combines with arcual;

3) sintering:

The ceramic particle piece of above-mentioned moulding delivered in the roasting chamber fire, temperature is controlled between 1000 ℃~1100 ℃, is incubated 3~5 hours, obtains the ceramic particle piece of Rockwell hardness in 60~90 scopes at last;

The preparation of abrading block:

The above-mentioned ceramic particle piece that obtains is rendered in the abrading block mould by certain weight percent adding of whole abrading block,

During input, overlay the slurry that one deck is made common silicon carbide grinding block earlier, put the ceramic particle piece then, arrange at interval between the ceramic particle piece that the slurry with common silicon carbide grinding block between the levels ceramic particle piece carries out the interval;

The slurry of common silicon carbide grinding block stirs in advance, mainly comprises chloro-magnesium cement, silicon carbide and suitable quantity of water in the slurry

The weight ratio of each component wherein: chloro-magnesium cement 65~80, silicon carbide 12~20, ceramic particle piece 10~20,

After the abrading block moulding, entire die is put into drying room, under 40 ℃~65 ℃ temperature, placed 1~2 day, to promote the abrading block id reaction, go out drying room after, parked 5~7 days, can come into operation.

The preparation of above-mentioned abrading block: when carrying out the input of material, overlay one deck earlier and make the slurry of common silicon carbide grinding block, its thickness is 2~15mm, on this layer slurry, put the ceramic particle piece then, arrange at interval between the ceramic particle piece, distance each other is 5~50mm, and the ceramic particle piece is 3~12mm apart from the distance of abrading block die edge; The slurry of the common silicon carbide grinding block of layer overlay again on this layer ceramic particle piece, the thickness of the common silicon carbide grinding block slurry of this layer is 4~15mm, and then continues to lay the ceramic particle piece above the slurry of the common silicon carbide grinding block of this layer; The thickness of the last common silicon carbide grinding block slurry of one deck is 2~15mm; The ceramic particle piece has a gap apart from the abrading block body edges, and this gap is 2~10mm.The two-layer ceramic particulate mass can be in same vertical position setting up and down, the setting of also can staggering mutually, and promptly the ceramic particle piece on upper strata is crossed over two ceramic particle pieces of lower floor or is arranged between two ceramic particle pieces of lower floor.

Adopt the ceramic sintered silicon carbide granular grinding block that aforesaid method obtained, comprise the silicon carbide grinding block body, its constitutional features is to be provided with in the body enhancing wear resisting property, the ceramic particle piece that increases the service life, and the ceramic particle piece is stratified and set in the body.

Above-mentioned ceramic particle piece levels is in same vertical position setting; Or in the setting of vertically staggering mutually.

The ceramic particle piece on above-mentioned ceramic particle piece upper strata is crossed over two ceramic particle pieces of lower floor or is arranged between two ceramic particle pieces of lower floor.

Above-mentioned ceramic particle piece has a gap apart from body edges, and this gap is 2~10mm.

The present invention is different with the making method of coater rolling moulding with the traditional ceramics particle, the abrading block of process coater rolling moulding is only at one or more layers ceramic sintered silicon carbide granular of its surface attachment, coating of particles, hardness all can not be well controlled, therefore the performance of product also is easy to generate fluctuation, in actual use, very easily come off or be stripped from, cause suitable weak point in work-ing life.The present invention earlier by press with the compression moulding of ceramic particle piece, directly make intensity stabilization, the ceramic particle piece of regular shape, the ceramic particle bulk strength that makes like this is higher, performance is more stable, the influence that improvement produced to product performance is also bigger, simultaneously, has overcome the big shortcoming of product performance fluctuation.Then ceramic particle piece place Min layers is located in the slurry that forms common silicon carbide grinding block, delivers to moulding in the baking vessel after the typing.This product is drawn following result through trying out:, can improve the performance of grinding tool from two aspects by adjusting the hardness of ceramic particle piece: the one, can obtain than the stronger product of common abrading block cutting force; The 2nd, keeping on the abrading block cutting force basis of invariable, prolonged 3~4 times than common abrading block work-ing life, and comprehensive production cost has only increased by 50%, promptly the product price ratio has significantly raising.

Description of drawings

Fig. 1 is a first embodiment of the invention sectional structure synoptic diagram.

Fig. 2 is the A-A sectional structure synoptic diagram of Fig. 1.

Fig. 3 is a second embodiment of the invention sectional structure synoptic diagram.

Fig. 4 is the B-B sectional structure synoptic diagram of Fig. 3.

Fig. 5 is a third embodiment of the invention sectional structure synoptic diagram.

Fig. 6 is the C-C sectional structure synoptic diagram of Fig. 5.

Embodiment

Below in conjunction with drawings and Examples the present invention is further described.

The making method of this ceramic sintered silicon carbide granular grinding block comprises the preparation of ceramic particle piece and the preparation of abrading block.

One, the preparation of ceramic particle piece comprises following step:

1) batching: adopt the preparing ceramic clinker close to make wedding agent, preparing ceramic clinker is become powder with ball mill grinding, mix by a certain percentage, make binding agent with dextrine powder with silicon carbide micro-powder with porcelain floor tile; Weight ratio between them is: preparing ceramic clinker: silicon carbide: dextrin=1~1.1: 7~9: 0.3~0.5; With stirrer above compound is stirred; Wherein need the dextrin amount to obtain according to following method: elder generation is mixed with 30~40 gram dextrine powders and 100 gram water, is heated to 80~100 degree, and behind the one-tenth pasty state, the cooling back is standby,

2) moulding: above-mentioned compound is injected in the ceramic particle block forming die, and with its compression moulding, wherein pressing machine adopts about 200 tons semi-automatic press by pressing machine, and the pressure of press is controlled at about 3~4 MPas; According to the needs of product, adopt different moulds, can obtain the ceramic particle piece of different shape and different size, ceramic particle piece cross section is that trilateral, tetragon, circle, ellipse or other Polygons combine with arcual, or arc combines with arcual; See the ceramic particle piece 2 and 3 among Fig. 1-Fig. 6;

3) sintering: the ceramic particle piece of above-mentioned moulding delivered in the roasting chamber fire, temperature is controlled between 1000 ℃~1100 ℃, is incubated 3~5 hours, obtains the ceramic particle piece of Rockwell hardness in 60~90 scopes at last.

Will be standby by the ceramic particle piece that above step obtains, carry out the preparation of abrading block below.

Two, the preparation of abrading block:

The above-mentioned ceramic particle piece that obtains is rendered in the abrading block mould by certain weight ratio adding of whole abrading block, during input, overlay one deck earlier and make the slurry of common silicon carbide grinding block, put the ceramic particle piece then, arrange at interval between the ceramic particle piece that the slurry with common silicon carbide grinding block between the levels ceramic particle piece carries out the interval; The slurry of common silicon carbide grinding block stirs in advance, mainly comprises the wherein weight percent of each component of chloro-magnesium cement, silicon carbide and suitable quantity of water in the slurry: chloro-magnesium cement 65~80, silicon carbide 12~20, ceramic particle piece 10~20.

During input, overlay one deck earlier and make the slurry of common silicon carbide grinding block, its thickness is 2~15mm, on this layer slurry, put the ceramic particle piece then, arrange at interval between the ceramic particle piece, distance each other is 5~50mm, the ceramic particle piece is 3~12mm apart from the distance of abrading block die edge, the slurry of the common silicon carbide grinding block of layer overlay again on this layer ceramic particle piece, the thickness of the common silicon carbide grinding block slurry of this layer is 4~15mm, and then continues to lay the ceramic particle piece above the slurry of the common silicon carbide grinding block of this layer; The thickness of the last common silicon carbide grinding block slurry of one deck is 2~15mm; The two-layer ceramic particulate mass can be in same vertical position setting up and down, the setting of also can staggering mutually, and promptly the ceramic particle piece on upper strata is crossed over two ceramic particle pieces of lower floor or is arranged between two ceramic particle pieces of lower floor, sees Fig. 1-Fig. 6.Wherein, the ceramic particle piece has a gap apart from the abrading block body edges, and this gap is 2~10mm.

After the abrading block moulding, entire die is put into drying room, under 40 ℃~65 ℃ temperature, placed 1~2 day, to promote the abrading block id reaction, go out drying room after, parked 5~7 days, can come into operation.

During use, along with the carrying out of polishing process, the abrading block body is consumed gradually, exposes to be embedded in intrinsic ceramic particle piece, because the ceramic particle piece is more firm, thereby strengthens wear resisting property, increases the service life.

We have done a collection of 46#, 60#, 80# number experiment product.Ceramic aggregate particle is pressed into rectangular bulk, is of a size of 38 * 20 * 8; Burn till under setting firing temperature curve, each ceramic block weight is 15 grams; Divide three layers evenly to add 12 ceramic blocks in each grinding tool, get product after moulding, the maintenance.It is on probation that finished product is taken polish line, and under the same conditions, the wear-resisting time can reach 5~8 hours; And original wear-resisting time of common grinding tool has only 1~2 hour.

Claims (6)

1. the making method of a ceramic sintered silicon carbide granular grinding block, it is characterized in that the making of described ceramic sintered silicon carbide granular grinding block comprises the preparation of ceramic particle piece and the preparation of abrading block: the preparation of ceramic particle piece comprises the following aspects:
1) batching:
Adopt the preparing ceramic clinker close to make wedding agent, with the preparing ceramic clinker ball mill with porcelain floor tile
Pulverize, mix by a certain percentage, make binding agent with dextrine powder with silicon carbide micro-powder;
Weight ratio between them is:
Preparing ceramic clinker: silicon carbide: dextrin=1~1.1: 7~9: 0.3~0.5;
With stirrer above compound is stirred;
2) moulding:
Above-mentioned compound is injected in the ceramic particle block forming die, and with its compression moulding, wherein pressing machine adopts about 200 tons semi-automatic press by pressing machine, and the pressure of press is controlled at about 3~4 MPas;
According to the needs of product, adopt different moulds, obtaining the ceramic particle piece of different shape and different size,
Ceramic particle piece cross section is that trilateral, tetragon, circle, ellipse or other Polygons combine with arcual, or arc combines with arcual;
3) sintering:
The ceramic particle piece of above-mentioned moulding delivered in the roasting chamber fire, temperature is controlled between 1000 ℃~1100 ℃, is incubated 3~5 hours, obtains the ceramic particle piece of Rockwell hardness in 60~90 scopes at last;
The preparation of abrading block:
The certain weight percent of the above-mentioned ceramic particle piece that obtains by whole abrading block added
Render in the abrading block mould,
During input, overlay the slurry that one deck is made common silicon carbide grinding block earlier, put the ceramic particle piece then, arrange at interval between the ceramic particle piece that the slurry with common silicon carbide grinding block between the levels ceramic particle piece carries out the interval;
The slurry of common silicon carbide grinding block stirs in advance, mainly comprises chloro-magnesium cement, silicon carbide and suitable quantity of water in the slurry
The weight ratio of each component wherein: chloro-magnesium cement 65~80, silicon carbide 12~20, ceramic particle piece 10~20,
After the abrading block moulding, entire die is put into drying room, under 40 ℃~65 ℃ temperature, placed 1~2 day, to promote the abrading block id reaction, go out drying room after, parked 5~7 days, can come into operation.
2. the making method of ceramic sintered silicon carbide granular grinding block according to claim 1, it is characterized in that the preparation of described abrading block: when carrying out the input of material, overlay one deck earlier and make the slurry of common silicon carbide grinding block, its thickness is 2~15mm, on this layer slurry, put the ceramic particle piece then, arrange at interval between the ceramic particle piece, distance each other is 5~50mm, the ceramic particle piece is 3~12mm apart from the distance of abrading block die edge, the slurry of the common silicon carbide grinding block of layer overlay again on this layer ceramic particle piece, the thickness of the common silicon carbide grinding block slurry of this layer is 4~15mm, and then continues to lay the ceramic particle piece above the slurry of the common silicon carbide grinding block of this layer;
The thickness of the last common silicon carbide grinding block slurry of one deck is 2~15mm;
The ceramic particle piece has a gap apart from the abrading block body edges, and this gap is 2~10mm;
The two-layer ceramic particulate mass can be in same vertical position setting up and down, the setting of also can staggering mutually, and promptly the ceramic particle piece on upper strata is crossed over two ceramic particle pieces of lower floor or is arranged between two ceramic particle pieces of lower floor.
3. ceramic sintered silicon carbide granular grinding block that ceramic sintered silicon carbide granular grinding block making method as claimed in claim 1 is obtained, comprise the silicon carbide grinding block body, it is characterized in that being provided with in the described body enhancing wear resisting property, the ceramic particle piece that increases the service life, the ceramic particle piece is stratified and set in the body.
4. ceramic sintered silicon carbide granular grinding block according to claim 3 is characterized in that described ceramic particle piece levels is in same vertical position setting; Or in the setting of vertically staggering mutually.
5. ceramic sintered silicon carbide granular grinding block according to claim 4, the ceramic particle piece that it is characterized in that described ceramic particle piece upper strata is crossed over two ceramic particle pieces of lower floor or is arranged between two ceramic particle pieces of lower floor.
6. ceramic sintered silicon carbide granular grinding block according to claim 3 is characterized in that described ceramic particle piece has a gap apart from body edges, and this gap is 2~10mm.
CNB2005101003775A 2005-10-14 2005-10-14 Ceramic sintered silicon carbide granular grinding block and its manufacturing method CN1331811C (en)

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CN1331811C true CN1331811C (en) 2007-08-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104707972B (en) * 2015-02-15 2018-01-30 广东省材料与加工研究所 A kind of preparation method of composite wear-resistant part

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU538882A1 (en) * 1974-07-29 1976-12-15 Предприятие П/Я А-1425 Mass of manufacture of the body of the abrasive tool
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
CN1453102A (en) * 2003-05-22 2003-11-05 罗广棉 Sintered grinding block for grinding ceramic plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU538882A1 (en) * 1974-07-29 1976-12-15 Предприятие П/Я А-1425 Mass of manufacture of the body of the abrasive tool
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
CN1453102A (en) * 2003-05-22 2003-11-05 罗广棉 Sintered grinding block for grinding ceramic plate

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Owner name: GUANGDONG BENLANG NEW MATERIAL CO., LTD.

Free format text: FORMER NAME: GUANGDONG BENLANG SUPERHARD MATERIALS CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Shunde District of Guangdong city of Foshan province Chen Cunguang Long Industrial Park eight Industrial Road No. seven

Patentee after: Guangdong Monte-Bianco Diamond Applications Co., Ltd.

Address before: Shunde District of Guangdong city of Foshan province Chen Cunguang Long Industrial Park eight Industrial Road No. seven

Patentee before: Benlang superhard Material Product Co., Ltd., Guangdong