CN105084894A - Formula for mixing zirconia powder - Google Patents
Formula for mixing zirconia powder Download PDFInfo
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- CN105084894A CN105084894A CN201510571704.9A CN201510571704A CN105084894A CN 105084894 A CN105084894 A CN 105084894A CN 201510571704 A CN201510571704 A CN 201510571704A CN 105084894 A CN105084894 A CN 105084894A
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Abstract
The invention discloses a formula for mixing zirconia powder. The formula comprises the following components in parts by weight: 83-86 parts of nano-zirconia powder, 4-5 parts of acrylic resin, 3-5 parts of polypropylene, 3-5 parts of EVA, 2-4 parts of paraffin, 0.5-0.7 part of glycerinum, 0.2-0.4 part of stearic acid, 0.1-0.3 part of amine salt and 0.1-0.3 part of dibutyl phthalate. The zirconia powder mixed according to the formula has the advantages of good fluidity, good adaptability with molds and excellent demolding performance, can be used for enduring high pressure when being subjected to injection molding, and the traditional constraint of pressure injection below 1Mpa can be changed; and a blank sintered according to the formula has the advantages of compact blank crystallization, small pores, small dimension shrinkage, low possibility of cracking and excellent mechanical performance.
Description
Technical field
The present invention relates to zirconium white micro mist applied technical field, be specially a kind of zirconium white micro mist mixing formula.
Background technology
Zirconium white micro mist mixing formula technology is the core technology that injection molding produces blank of cored ceramics, it has material impact to whole ceramic insertion core production technique, current published formula has: (1) application number is the patent application of 201310083180.X, disclose a kind of zirconium white micro mist mixing formula: Zirconium oxide powder: 77-91 part, EVA:0.9-6.9 part, polystyrene: 0.45-4.6 part, polypropylene: 0.9-4.6 part, vegetables oil: 0.09-1.15 part, stearic acid: 0.45-1.35 part, paraffin: 0.9-4.5 part.(2) application number is the patent application of 201410437995.8, discloses a kind of zirconium white micro mist mixing formula: zirconia ceramics powder 80-82 part, ethylene-vinyl acetate copolymer 3-5 part, oleic acid 2-4 part, polymethacrylate 2-4 part, Atactic Polypropelene 2-4 part, paraffin 4-7 part.(3) other formula of other kinds document announcement.
These formulas mainly solve following problem: (1) the ceramic injection forming stage can with powder Homogeneous phase mixing, reduce powder viscosity, make powder have good mobility, become and be suitable for injection molding feeding; (2) binding agent can play the effect maintaining idiosome shape after ceramic injection forming and during degreasing, makes product have complete suitable shape before sintering.
In production practice, find that existing formula still exists some problems, show in the following areas: 1. pair manufacturing technique requirent is high, technological process is difficult to control; 2. mobility viscosity is relatively large, is generally greater than 50Pa.s; 3. the product qualified rate obtained after injection molding and sintering is low; 4. consistency is bad; 5. mixing is not easy evenly; 6. easily produce the problems such as thermal stresses defect.
Summary of the invention
The object of the present invention is to provide a kind of zirconium white micro mist mixing formula, it can better solve prior art Problems existing.
For achieving the above object, the invention provides following technical scheme: a kind of zirconium white micro mist mixing formula, compositing formula comprises the stable nano zircite micro mist 83-86 part of yttrium with weight parts, acrylic resin 4-5 part, polypropylene 3-5 part, EVA3-5 part, paraffin 2-4 part, glycerine 0.5-0.7 part, stearic acid 0.2-0.4 part, amine salt 0.1-0.3 part, dibutyl phthalate 0.1-0.3 part.
Preferably, described compositing formula comprises the stable nano zircite micro mist of yttrium 84.8 parts with weight parts, acrylic resin 4.2 parts, polypropylene 3.6 parts, EVA3.3 part, 2.8 parts, paraffin, glycerine 0.6 part, stearic acid 0.3 part, 0.2 part, amine salt, dibutyl phthalate 0.2 part.
Compared with prior art, the invention has the beneficial effects as follows:
1. this zirconium white micro mist mixing formula, good fluidity, moulding process medium viscosity varies with temperature little, and under mold temperature, viscosity can lower than 10Pa s, and after injection molding, sintering, density is good, and density can reach 6.10 grams/cc.
2. the intensity of this formula is regulated together with softening agent by the superpolymer of good heat resistance, changes tradition and only relies on superpolymer to carry out regulating and the defect of form instability.
3. this formula and injection molding adaptability good, have good demoulding property.
4. this formula can tolerate higher pressure when injection molding, changes the constraint of traditional below 1Mpa pressure injection.
5. the blank compact crystallization that sinters out of this formula, pore is little, and dimensional contraction is little, is not easy to crack, good mechanical performance.
6. material composition is not oxidizable and rotten in process of production for this formula.
Embodiment
Embodiment 1:
A kind of zirconium white micro mist mixing formula, compositing formula comprises the stable nano zircite micro mist of yttrium yttrium 83 parts with weight parts, acrylic resin 4 parts, polypropylene 4 parts, EVA5 part, 2.3 parts, paraffin, glycerine 0.7 part, stearic acid 0.4 part, 0.3 part, amine salt, dibutyl phthalate 0.3 part.
Embodiment 2:
A kind of zirconium white micro mist mixing formula, compositing formula comprises the stable nano zircite micro mist of yttrium yttrium 86 parts with weight parts, acrylic resin 4 parts, polypropylene 3 parts, EVA3.5 part, 2 parts, paraffin, glycerine 0.7 part, stearic acid 0.4 part, 0.3 part, amine salt, dibutyl phthalate 0.1 part.
Embodiment 3:
A kind of zirconium white micro mist mixing formula, compositing formula with the stable nano zircite micro mist 84.8 parts of weight parts yttrium yttrium, acrylic resin 4.2 parts, polypropylene 3.6 parts, EVA3.3 part, 2.8 parts, paraffin, glycerine 0.6 part, stearic acid 0.3 part, 0.2 part, amine salt, dibutyl phthalate 0.2 part.
Embodiment 4:
A kind of zirconium white micro mist mixing formula, compositing formula with the stable nano zircite micro mist 86 parts of weight parts yttrium yttrium, acrylic resin 5 parts, polypropylene 4.1 parts, EVA3 part, 2 parts, paraffin, glycerine 0.5 part, stearic acid 0.2 part, 0.1 part, amine salt, dibutyl phthalate 0.1 part.
Embodiment 5:
A kind of zirconium white micro mist mixing formula, compositing formula with the stable nano zircite micro mist 83 parts of weight parts yttrium yttrium, acrylic resin 5 parts, polypropylene 5 parts, EVA3.7 part, 2 parts, paraffin, glycerine 0.6 part, stearic acid 0.3 part, 0.2 part, amine salt, dibutyl phthalate 0.2 part.
By sample 1, sample 2, sample 3, sample 4, the sample 5 of preparing 100 parts of injection moldings respectively of filling a prescription described in embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, its average viscosity is respectively 8Pa.s, 9Pa.s, 8Pa.s, 7Pa.s, 8Pa.s.The ceramic lock pin based on zirconium oxide blank sample A obtained after mixing, injection molding, sintering, sample B, sample C, sample D, sample E, the result is after testing as following table:
| Mean density (g/cm3) | Average hardness (HMV) | Average broken 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 illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (2)
1. a zirconium white micro mist mixing formula, it is characterized in that: compositing formula comprises the stable nano zircite micro mist 83-86 part of yttrium with weight parts, acrylic resin 4-5 part, polypropylene 3-5 part, EVA3-5 part, paraffin 2-4 part, glycerine 0.5-0.7 part, stearic acid 0.2-0.4 part, amine salt 0.1-0.3 part, dibutyl phthalate 0.1-0.3 part.
2. a kind of zirconium white micro mist mixing formula according to claim 1, it is characterized in that: described compositing formula comprises the stable nano zircite micro mist of yttrium 84.8 parts, acrylic resin 4.2 parts, polypropylene 3.6 parts, EVA3.3 part, 2.8 parts, paraffin, glycerine 0.6 part, stearic acid 0.3 part, 0.2 part, amine salt, dibutyl phthalate 0.2 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN105084894A true CN105084894A (en) | 2015-11-25 |
| CN105084894B CN105084894B (en) | 2017-09-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594219A (en) * | 2004-06-25 | 2005-03-16 | 清华大学 | Ceramic injection material with water degreasing characteristic and its application |
| CN101767988A (en) * | 2009-01-01 | 2010-07-07 | 黄石晨信光电有限责任公司 | Nano ZrO2 ceramic pin blank and preparation method thereof |
| CN103113102A (en) * | 2013-03-15 | 2013-05-22 | 湖南正阳精密陶瓷有限公司 | Zirconia ceramic insert core and preparation method thereof |
| CN103803974A (en) * | 2013-09-29 | 2014-05-21 | 雅安远创陶瓷有限责任公司 | Injection molding zirconium oxide and preparation method for same |
| CN104261820A (en) * | 2014-09-01 | 2015-01-07 | 河北智康通信技术有限公司 | Zirconia ceramic ferrule and production process thereof |
-
2015
- 2015-09-10 CN CN201510571704.9A patent/CN105084894B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594219A (en) * | 2004-06-25 | 2005-03-16 | 清华大学 | Ceramic injection material with water degreasing characteristic and its application |
| CN101767988A (en) * | 2009-01-01 | 2010-07-07 | 黄石晨信光电有限责任公司 | Nano ZrO2 ceramic pin blank and preparation method thereof |
| CN103113102A (en) * | 2013-03-15 | 2013-05-22 | 湖南正阳精密陶瓷有限公司 | Zirconia ceramic insert core and preparation method thereof |
| CN103803974A (en) * | 2013-09-29 | 2014-05-21 | 雅安远创陶瓷有限责任公司 | Injection molding zirconium oxide and preparation method for same |
| CN104261820A (en) * | 2014-09-01 | 2015-01-07 | 河北智康通信技术有限公司 | Zirconia ceramic ferrule and production process thereof |
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| CN105084894B (en) | 2017-09-15 |
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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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Effective date of registration: 20211019 Address after: 518 Yunji Avenue, Hengnan County, Hengyang City, Hunan Province Patentee after: HUNAN ZHONGKE PHOTOELECTRIC Co.,Ltd. Address before: 223600 Hangzhou East Road, Shuyang economic and Technological Development Zone, Suqian, Jiangsu, 33 Patentee before: JIANGSU ZHONGKE PHOTOELECTRIC Co.,Ltd. |
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