CN104402458A - Thin-walled honeycomb ceramic carrier mud material and preparation method thereof - Google Patents
Thin-walled honeycomb ceramic carrier mud material and preparation method thereof Download PDFInfo
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- CN104402458A CN104402458A CN201410573910.9A CN201410573910A CN104402458A CN 104402458 A CN104402458 A CN 104402458A CN 201410573910 A CN201410573910 A CN 201410573910A CN 104402458 A CN104402458 A CN 104402458A
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Abstract
The invention discloses a thin-walled honeycomb ceramic carrier mud material and a preparation method thereof, wherein the thin-walled honeycomb ceramic carrier mud material includes the following raw materials by weight: 100 parts of inorganic material powder, 10-15 parts of paraffin powder, 0.1-1 part of organic spherical powder and 4-6 parts of cellulose, the thin-walled honeycomb ceramic carrier mud material is prepared by adding the paraffin powder for ball milling and sieving and adding the organic spherical powder and the cellulose for mixing and kneading. Through rotation in a ball mill with alumina balls, the paraffin powder adheres to the inorganic material powder to for a layer of paraffin film, under the driving effect of the spherical structure organic spherical powder, sliding and liquidity can be greatly improved, and the organic spherical powder is free of residue after heating at the high temperature of 300 DEG C, the method is simple, a 600-mesh or above and 0.12mm or below high hole density thin-walled honeycomb ceramic carrier product can be prepared, at the same time the die service life is prolonged.
Description
Technical field
The present invention relates to honeycomb ceramic carrier technical field, specifically a kind of thin wall honeycomb ceramic carrier pug formula and preparation method thereof.
Background technology
Constantly strict along with motor vehicle exhaust regulation, purifying vehicle exhaust with honeycomb ceramic carrier also constantly to high density holes, grid wall thin-walled property future development, after truck carrier rises to state four standard by state three emission standard, the hole density of truck carrier will from 400 orders bring up to 600 orders and more than, grid wall thickness also can bring up to 0.12mm and following from 0.17mm.When adopt with below 400 orders, the honeycomb ceramic carrier of 0.17mm grid wall thickness fill a prescription shaping 600 orders of identical pug and above, grid wall thickness 0.12mm thereof and following product thereof time, because pug passage becomes much narrow, the extrude power of pug required in die channel can increase greatly, pug also there will be situation about not catching up with simultaneously, so will cause the problem of two aspects: the pressure that mould can be made to bear on the one hand increases greatly, the damage of aggravation mould, even exceedes the scope that mould can bear pressure; On the other hand, the state that this pug does not catch up with can make the product formed out occur lacking grid wall or cannot molding continuous print qualified product at all.
The root that the problems referred to above produce is that pug is when extrusion moulding, the slip property difference of feed particles in pug causes, and slip property had both shown the frictional force between the feed particles of pug inside and feed particles, showed again the frictional force of pug particle between pug and mould and die surface.
Although the honeycomb ceramic carrier pug of 0.17mm wall thickness below current 400 orders, be the mobility and the slipping property that to increase pug by adding grease (animal grease, Vegetable oil lipoprotein etc.), water-soluble lubricating fat (stearate, glycerine, lauroleate etc.) etc. in pug formula as lubricant.But effect when this being directly applied to shaping 600 orders and above, grid wall thickness 0.12mm thereof and following product thereof is apparent, can not solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of thin wall honeycomb ceramic carrier pug formula and preparation method thereof, by improving the mobility of pug and slipping property, obtained 600 orders and above, grid wall thickness 0.12mm thereof and following thin wall honeycomb ceramic vector product thereof.
For achieving the above object, the invention provides following technical scheme:
A kind of thin wall honeycomb ceramic carrier pug formula, comprises inorganic raw material powder 100 parts, paraffin powder 10-15 part, organic spherical powder 0.1-1 part and Mierocrystalline cellulose 4-6 part according to the raw material of weight part.
As the further scheme of the present invention: described paraffin powder is industrial paraffin powder.
As the further scheme of the present invention: described organic spherical powder includes but not limited to epoxy resin, acrylic resin, PVC.
As the further scheme of the present invention: described organic spherical powder is the globosity of particle diameter at 1-10 μm of uniform particle sizes, and its strength at break is greater than 15MPa.
As the further scheme of the present invention: the perfect combustion after 300 DEG C of heat of described organic spherical powder, noresidue.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprises the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing:
The surface treatment of described inorganic raw material powder and the concrete steps of shaping are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out;
The concrete steps of a certain amount of organic spherical powder of described introducing are: added in dry powder blender by the powder after sieving above, then add organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is rolled in the ball mill having alumina globule by inorganic raw material powder, the corner angle of inorganic raw material powder surface are polished off and forms spherical or that class is spherical shape, the mobility of inorganic raw material powder and slipping property are promoted greatly; The paraffin powder simultaneously added in mechanical milling process, also the surface of inorganic raw material powder is sticked in the process can rolled at inorganic raw material powder, make inorganic raw material powder surface form one deck Parafilm, so just can promote slipping property and the mobility of inorganic raw material powder further; Inorganic raw material powder in the present invention is under the drive of organic spherical powder of globosity, slipping property and mobility are promoted greatly, and this organic spherical powder is getting final product perfect combustion after 300 DEG C of heat, noresidue, on the performance of thin wall honeycomb ceramic carrier pug product without impact; The method is simple, can obtain 600 orders and above, 0.12mm thereof and following high density holes thin wall honeycomb ceramic vector product thereof, also extend the mold use life-span simultaneously.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of thin wall honeycomb ceramic carrier pug formula, comprises according to the raw material of weight part the vinylformic acid bead 0.5 part that inorganic raw material powder 100 parts, Mierocrystalline cellulose 5 parts, 15 parts, paraffin powder and particle diameter are 3 μm.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprise the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing, concrete steps are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out; Powder after sieving is added in dry powder blender, then adds organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Embodiment 2
In the embodiment of the present invention, a kind of thin wall honeycomb ceramic carrier pug formula, comprises according to the raw material of weight part the PVC bead 1 part that inorganic raw material powder 100 parts, Mierocrystalline cellulose 5 parts, 15 parts, paraffin powder and particle diameter are 5 μm.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprise the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing, concrete steps are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out; Powder after sieving is added in dry powder blender, then adds organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Embodiment 3
In the embodiment of the present invention, a kind of thin wall honeycomb ceramic carrier pug formula, comprises inorganic raw material powder 100 parts according to the raw material of weight part, Mierocrystalline cellulose 5 parts, 13 parts, paraffin powder, particle diameter is the vinylformic acid bead 0.3 part of 3 μm and particle diameter is the PVC bead 0.3 part of 5 μm.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprise the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing, concrete steps are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out; Powder after sieving is added in dry powder blender, then adds organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Embodiment 4
In the embodiment of the present invention, a kind of thin wall honeycomb ceramic carrier pug formula, comprises inorganic raw material powder 100 parts according to the raw material of weight part, Mierocrystalline cellulose 5 parts, 10 parts, paraffin powder, particle diameter is the vinylformic acid bead 0.3 part of 3 μm and particle diameter is the PVC bead 0.5 part of 5 μm.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprise the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing, concrete steps are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out; Powder after sieving is added in dry powder blender, then adds organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Embodiment 5
In the embodiment of the present invention, a kind of thin wall honeycomb ceramic carrier pug formula, comprises inorganic raw material powder 100 parts according to the raw material of weight part, Mierocrystalline cellulose 5 parts, 10 parts, paraffin powder, particle diameter is the vinylformic acid bead 0.5 part of 3 μm and particle diameter is the PVC bead 0.5 part of 5 μm.
The preparation method of described thin wall honeycomb ceramic carrier pug formula, comprise the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing, concrete steps are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out; Powder after sieving is added in dry powder blender, then adds organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
Adopt different extrusion pressures that pug prepared by above-mentioned 5 embodiments is made thin wall honeycomb ceramic vector product, and be provided with a control group, the concrete data of concrete formula, extrusion pressure and once shaped qualification rate are as shown in table 1, and wherein the extruded velocity of 6 groups is 500mm/min.As shown in Table 1, once shaped qualification rate except control group is except 60%, the once shaped qualification rate of above-mentioned 5 embodiments is 100%, illustrate that formula of the present invention and preparation method are feasible, 600 orders and above, 0.12mm thereof and following high density holes thin wall honeycomb ceramic vector product thereof can be obtained, also extend the mold use life-span simultaneously.
The pug formula of each embodiment of table 1 and once shaped qualification rate
| Formula | Inorganic raw material powder (w%) | Mierocrystalline cellulose (w%) | Paraffin powder (w%) | The vinylformic acid bead (w%) of particle diameter 3 μm | The PVC bead (w%) of particle diameter 5 μm | Extrusion pressure (MPa) | Once shaped qualification rate (%) |
| Control group | 100 | 5 | 18 | 60 | |||
| Embodiment 1 | 100 | 5 | 15 | 0.5 | 14 | 100 | |
| Embodiment 2 | 100 | 5 | 15 | 1 | 13 | 100 | |
| Embodiment 3 | 100 | 5 | 13 | 0.3 | 0.3 | 12 | 100 |
| Embodiment 4 | 100 | 5 | 10 | 0.3 | 0.5 | 11 | 100 |
| Embodiment 5 | 100 | 5 | 10 | 0.5 | 0.5 | 10 | 100 |
The present invention is rolled in the ball mill having alumina globule by inorganic raw material powder, is polished off by the corner angle of inorganic raw material powder surface and forms spherical or that class is spherical shape, and the mobility of inorganic raw material powder and slipping property are promoted greatly; The paraffin powder simultaneously added in mechanical milling process, also the surface of inorganic raw material powder is sticked in the process can rolled at inorganic raw material powder, make inorganic raw material powder surface form one deck Parafilm, so just can promote slipping property and the mobility of inorganic raw material powder further; Inorganic raw material powder in the present invention is under the drive of organic spherical powder of globosity, slipping property and mobility are promoted greatly, and this organic spherical powder is getting final product perfect combustion after 300 DEG C of heat, noresidue, on the performance of thin wall honeycomb ceramic carrier pug product without impact.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a thin wall honeycomb ceramic carrier pug formula, is characterized in that, comprises inorganic raw material powder 100 parts, paraffin powder 10-15 part, organic spherical powder 0.1-1 part and Mierocrystalline cellulose 4-6 part according to the raw material of weight part.
2. thin wall honeycomb ceramic carrier pug formula according to claim 1, is characterized in that, described paraffin powder is industrial paraffin powder.
3. thin wall honeycomb ceramic carrier pug formula according to claim 1, is characterized in that, described organic spherical powder includes but not limited to epoxy resin, acrylic resin, PVC.
4. thin wall honeycomb ceramic carrier pug formula according to claim 1, is characterized in that, described organic spherical powder is the globosity of particle diameter at 1-10 μm of uniform particle sizes, and its strength at break is greater than 15MPa.
5. thin wall honeycomb ceramic carrier pug formula according to claim 1, is characterized in that, the perfect combustion after 300 DEG C of heat of described organic spherical powder, noresidue.
6. a preparation method for the thin wall honeycomb ceramic carrier pug formula as described in as arbitrary in claim 1-5, is characterized in that, comprises the surface treatment of inorganic raw material powder and shaping, a certain amount of organic spherical powder of introducing:
The surface treatment of described inorganic raw material powder and the concrete steps of shaping are: proportionally take inorganic raw material powder, and join in ball mill by the inorganic raw material powder configured; In ball mill, add the alumina globule that diameter is 3-10mm again, the fixing fabric structure of alumina globule is at the 1/3-1/4 of inorganic raw material powder volume; Add paraffin powder again; Then start ball mill, rotate 0.5-1 hour; After ball mill stops operating, powder is taken out, then by 180 object spin vibration sieves, the alumina globule in powder and oarse-grained paraffin powder is filtered out;
The concrete steps of a certain amount of organic spherical powder of described introducing are: added in dry powder blender by the powder after sieving above, then add organic spherical powder and Mierocrystalline cellulose; Then after fully mixing in mixing machine, then kneader is put into; Conveniently honeycomb ceramic carrier pug kneader process, while the kneading of limit, limit sprays into the aqueous solution being mixed with liquid lubricant, and after the clod that powder becomes doughball shape, the preparation of pug completes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503233A (en) * | 2015-12-14 | 2016-04-20 | 重庆奥福精细陶瓷有限公司 | Large-size thin-wall cordierite honeycomb ceramics carrier mud and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090156385A1 (en) * | 2003-10-29 | 2009-06-18 | Giang Biscan | Manufacture and use of engineered carbide and nitride composites |
| CN102850084A (en) * | 2012-09-17 | 2013-01-02 | 李少荣 | Preparation method for porous ceramic by using organic resin foaming microspheres as pore-forming agent |
-
2014
- 2014-10-24 CN CN201410573910.9A patent/CN104402458A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090156385A1 (en) * | 2003-10-29 | 2009-06-18 | Giang Biscan | Manufacture and use of engineered carbide and nitride composites |
| CN102850084A (en) * | 2012-09-17 | 2013-01-02 | 李少荣 | Preparation method for porous ceramic by using organic resin foaming microspheres as pore-forming agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503233A (en) * | 2015-12-14 | 2016-04-20 | 重庆奥福精细陶瓷有限公司 | Large-size thin-wall cordierite honeycomb ceramics carrier mud and preparation method thereof |
| CN105503233B (en) * | 2015-12-14 | 2019-04-16 | 重庆奥福精细陶瓷有限公司 | A kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug and preparation method thereof |
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