CN105084894B - A kind of zirconium oxide micro mist mixing formula - Google Patents
A kind of zirconium oxide micro mist mixing formula Download PDFInfo
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- CN105084894B CN105084894B CN201510571704.9A CN201510571704A CN105084894B CN 105084894 B CN105084894 B CN 105084894B CN 201510571704 A CN201510571704 A CN 201510571704A CN 105084894 B CN105084894 B CN 105084894B
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Abstract
The invention discloses a kind of zirconium oxide micro mist mixing formula, compositing formula includes 83 86 parts of the nano zircite micro mist of yttrium stabilization in terms of parts by weight, 45 parts of acrylic resin, 35 parts of polypropylene, 5 parts of EVA3,24 parts of paraffin, 0.5 0.7 parts of glycerine, 0.2 0.4 parts of stearic acid, 0.1 0.3 parts of amine salt, 0.1 0.3 parts of dibutyl phthalate.The zirconium oxide micro mist mixing formula, it is good fluidity, good with mould adaptability, have good demoulding property, higher pressure can be resistant to during injection moulding, the constraint of traditional 1Mpa pressures below injection, the blank compact crystallization that the formula is sintered out is changed, stomata is small, dimensional contraction is small, it is not easy to crack, good mechanical performance.
Description
Technical field
The present invention relates to zirconium oxide micro mist applied technical field, specially a kind of zirconium oxide micro mist mixing formula.
Background technology
Zirconium oxide micro mist mixing formula technology is the core technology that injection molding produces blank of cored ceramics, and it is to whole
Individual ceramic insertion core production technology has a major impact, and published formula has at present：(1) Application No. 201310083180.X's is special
Profit application, discloses a kind of zirconium oxide micro mist mixing formula：Zirconium oxide powder:77-91 parts, EVA:0.9-6.9 parts, polyphenyl second
Alkene:0.45-4.6 parts, polypropylene:0.9-4.6 parts, vegetable oil:0.09-1.15 parts, stearic acid:0.45-1.35 parts, paraffin:
0.9-4.5 parts.(2) patent application of Application No. 201410437995.8, discloses a kind of zirconium oxide micro mist mixing formula：Oxygen
80-82 parts of zircon ceramic powder of change, 3-5 parts of ethylene-vinyl acetate copolymer, 2-4 parts of oleic acid, 2-4 parts of polymethacrylates, randomly
2-4 parts of polypropylene, 4-7 parts of paraffin.（3）Other formulas that other kinds document is announced.
These formulas mainly solve problems with：（1）It can uniformly mix, drop with powder in the ceramic injection forming stage
Self raising flour end viscosity so that powder has good mobility, as being suitable for injection molding feeding；（2）Binding agent can be
Play a part of maintaining idiosome shape after ceramic injection forming and during degreasing, make product that there is complete suitable shape before sintering
Shape.
In production practices, it is found that existing formula still has some problems, performance is in the following areas：1. pair production technology
It is required that high, technical process is difficult to control to；2. mobility viscosity is relatively large, generally higher than 50Pa.s；3. through injection moulding and burning
The product qualified rate obtained after knot is low；4. compatibility is bad；5. mixing is not easy uniform；6. thermal stress defect etc. is easily produced to ask
Topic.
The content of the invention
It is an object of the invention to provide a kind of zirconium oxide micro mist mixing formula, it can preferably solve prior art presence
The problem of.
To achieve the above object, the present invention provides following technical scheme：A kind of zirconium oxide micro mist mixing formula, compositing formula
Including 83-86 parts of the nano zircite micro mist that yttrium is stable in terms of parts by weight, 4-5 parts of acrylic resin, 3-5 parts of polypropylene,
EVA3-5 parts, 2-4 parts of paraffin, 0.5-0.7 parts of glycerine, 0.2-0.4 parts of stearic acid, 0.1-0.3 parts of amine salt, the fourth of phthalic acid two
0.1-0.3 parts of ester.
It is preferred that, described compositing formula includes 84.8 parts of the nano zircite micro mist of yttrium stabilization, third in terms of parts by weight
4.2 parts of olefin(e) acid resin, 3.6 parts of polypropylene, EVA3.3 parts, 2.8 parts of paraffin, 0.6 part of glycerine, 0.3 part of stearic acid, 0.2 part of amine salt,
0.2 part of dibutyl phthalate.
Compared with prior art, the beneficial effects of the invention are as follows：
1. viscosity with temperature change is small in the zirconium oxide micro mist mixing formula, good fluidity, forming process, under forming temperature
Viscosity can be less than 10Pa s, injection moulding, sintering after density it is good, density can reach 6.10 grams/cc.
2. the intensity of the formula is adjusted together by heat-resist high polymer and plasticizer, change tradition and rely solely on height
Polymers is adjusted and the unstable defect of form.
3. the formula is good with injection molding adaptability, have good demoulding property.
4. the formula can be resistant to higher pressure in injection moulding, the beam of traditional 1Mpa pressures below injection is changed
Tie up.
5. the blank compact crystallization that the formula is sintered out, stomata is small, dimensional contraction is small, it is not easy to crack, mechanical property
Can be excellent.
6. material composition is not oxidizable and rotten in process of production for the formula.
Embodiment
Embodiment 1：
A kind of zirconium oxide micro mist mixing formula, compositing formula is micro- including the stable nano zircite of yttrium yttrium in terms of parts by weight
83 parts of powder, 4 parts of acrylic resin, 4 parts of polypropylene, EVA5 parts, 2.3 parts of paraffin, 0.7 part of glycerine, 0.4 part of stearic acid, amine salt 0.3
Part, 0.3 part of dibutyl phthalate.
Embodiment 2：
A kind of zirconium oxide micro mist mixing formula, compositing formula is micro- including the stable nano zircite of yttrium yttrium in terms of parts by weight
86 parts of powder, 4 parts of acrylic resin, 3 parts of polypropylene, EVA3.5 parts, 2 parts of paraffin, 0.7 part of glycerine, 0.4 part of stearic acid, amine salt 0.3
Part, 0.1 part of dibutyl phthalate.
Embodiment 3：
A kind of zirconium oxide micro mist mixing formula, compositing formula stable nano zircite micro mist of yttrium yttrium in terms of parts by weight
84.8 parts, 4.2 parts of acrylic resin, 3.6 parts of polypropylene, EVA3.3 parts, 2.8 parts of paraffin, 0.6 part of glycerine, 0.3 part of stearic acid,
0.2 part of amine salt, 0.2 part of dibutyl phthalate.
Embodiment 4：
A kind of zirconium oxide micro mist mixing formula, compositing formula stable nano zircite micro mist 86 of yttrium yttrium in terms of parts by weight
Part, 5 parts of acrylic resin, 4.1 parts of polypropylene, EVA3 parts, 2 parts of paraffin, 0.5 part of glycerine, 0.2 part of stearic acid, 0.1 part of amine salt,
0.1 part of of dibutyl phthalate
Embodiment 5：
A kind of zirconium oxide micro mist mixing formula, compositing formula stable nano zircite micro mist 83 of yttrium yttrium in terms of parts by weight
Part, 5 parts of acrylic resin, 5 parts of polypropylene, EVA3.7 parts, 2 parts of paraffin, 0.6 part of glycerine, 0.3 part of stearic acid, 0.2 part of amine salt,
0.2 part of dibutyl phthalate.
100 parts of preparation respectively is formulated as described in embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 to be injected into
Sample 1, sample 2, sample 3, sample 4, the sample 5 of type, its average viscosity are respectively 8 Pa.s, 9 Pa.s, 8 Pa.s, 7
Pa.s、8 Pa.s.The ceramic lock pin based on zirconium oxide blank sample A that is obtained after mixing, injection moulding, sintering, sample B, sample C,
Sample D, sample E, after testing after result such as following table：
| Averag density (g/cm3) | Average hardness (HMV) | Averagely break toughness (M N.m) | Average bending strength (MPa) | Average sintering shrinkage | |
| Sample A | 6.05 | 1250 | 8.5 | 1260 | 17% |
| Sample B | 6.10 | 1254 | 8.4 | 1258 | 16% |
| Sample C | 6.07 | 1258 | 8.6 | 1254 | 16% |
| Sample D | 6.03 | 1250 | 8.6 | 1250 | 15% |
| Sample E | 6.06 | 1254 | 8.5 | 1253 | 17% |
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of zirconium oxide micro mist mixing formula, it is characterised in that：Compositing formula includes the nanometer of yttrium stabilization in terms of parts by weight
83-86 parts of zirconium oxide micro mist, 4-5 parts of acrylic resin, 3-5 parts of polypropylene, EVA3-5 parts, 2-4 parts of paraffin, glycerine 0.5-0.7
Part, 0.2-0.4 parts of stearic acid, 0.1-0.3 parts of amine salt, 0.1-0.3 parts of dibutyl phthalate.
2. a kind of zirconium oxide micro mist mixing formula according to claim 1, it is characterised in that：Described compositing formula includes
84.8 parts stable of nano zircite micro mist of yttrium, 4.2 parts of acrylic resin, 3.6 parts of polypropylene, EVA3.3 parts, 2.8 parts of paraffin,
0.6 part of glycerine, 0.3 part of stearic acid, 0.2 part of amine salt, 0.2 part of dibutyl phthalate.
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| CN201510571704.9A CN105084894B (en) | 2015-09-10 | 2015-09-10 | A kind of zirconium oxide micro mist mixing formula |
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| CN105084894B true CN105084894B (en) | 2017-09-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1259283C (en) * | 2004-06-25 | 2006-06-14 | 清华大学 | Ceramic injection material with water degreasing characteristic and its application |
| CN101767988B (en) * | 2009-01-01 | 2012-07-11 | 黄石晨信光电有限责任公司 | Nano ZrO2 ceramic pin blank and preparation method thereof |
| CN103113102B (en) * | 2013-03-15 | 2014-08-27 | 湖南正阳精密陶瓷有限公司 | Zirconia ceramic insert core and preparation method thereof |
| CN103803974B (en) * | 2013-09-29 | 2015-07-08 | 雅安远创陶瓷有限责任公司 | Injection molding zirconium oxide and preparation method for same |
| CN104261820B (en) * | 2014-09-01 | 2016-04-06 | 河北智康通信技术有限公司 | Ceramic lock pin based on zirconium oxide and production technique thereof |
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Effective date of registration: 20160513 Address after: 223600 No. 33 East Hangzhou Road, Shuyang economic and Technological Development Zone, Jiangsu, Suqian Applicant after: JIANGSU ZHONGKE PHOTOELECTRIC CO., LTD. Address before: Ruian City Bishan Zhen Du tou village of Wenzhou city in Zhejiang province 325200 Applicant before: Lu Lijian |
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