Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art, and provide that a kind of with diatomite to be that main raw material prepares high-strength, moisture absorption, fp cosmetic container ceramic gasket.
The objective of the invention is to be achieved through the following technical solutions:
This ceramic gasket product is made of following set of dispense ratio, diatomite 30-50%, and wollastonite 5-10%, clay 10-20%, feldspar 15-30%, talcum 0-5% adds water 50-100%.Described diatomite chemical ingredients is: SiO
286.30%, Al
2O
36.30%, Fe
2O
32.47%, TiO
20.07%, CaO0.65%, MgO1.37%, K
2O0.97%, Na
2O1.16%, loss on ignition 0.56%.
Concrete processing step is as follows:
1, diatomite, wollastonite, clay, feldspar, talcum and water are formed weighing according to prescription, wherein water is adjusted according to slurry viscosity as admixture.The material that weighs up is put into high energy ball mill carry out levigately, behind the ball milling certain hour, cross 200 mesh sieves behind the slurry ball-milling, carry out testing graininess, it is surplus less than after 2% to treat that granularity reaches 10000-hole sieve, pours in the container slip stand-by.
2, the slip that stirs is put into baking oven and dry, after water ratio reaches 5%-8%, take out.
3, the material that will take out sieve, granulation, granularity is selected screen mesh size according to product requirement, the material water ratio be controlled at 5-8%.
4, will expect oldly more than 10 hours, and take by weighing a certain amount of material and put into mould, compression moulding, forming pressure is controlled between the 10-30Mpa.
5, the sample after the moulding being put into baking oven dries to constant weight.
6, the sample after will drying takes out and puts into retort furnace and calcine, and firing temperature behind the sintering takes out sample about 950-1050 ℃, and it is carried out Performance Detection, promptly makes required sample.
The effect that the present invention adopts technique scheme to reach is:
(1) good product performance: prepared product is through measuring, and every performance index are better.Its dimension formula hardness is 38HV, and water-intake rate is 17.4%, and ultimate compression strength>5Mpa, goods highly fall from 40cm does not have breakage.
(2) the anti-1000 ℃ of high temperature of goods do not have distortion in the course of processing, fire resistance is good.
(3) high hygroscopic property, moisture absorption automatically under wet environment, water-intake rate 15%-25%.
It is main raw material that this product all adopts northeast real estate diatomite, and it is lower to have a cost, technical maturity, the characteristics that workability is good.Can partly replace pourable resin chock, can improve the class of minaudiere, have market outlook preferably.
Embodiment
Embodiment one
A kind of high-strength, moisture absorption cosmetic container diatomite ceramic gasket, it prepares by following processing step:
A, with diatomite, clay, wollastonite, potassium felspar sand, albite, talcum and water according to following prescription weighing: diatomite 50g, clay 18g, wollastonite 9g, potassium felspar sand 15g, albite 5g, talcum 3g, water 100ml.The material that weighs up was put into the high energy ball mill ball milling 15 minutes, until slurry granularity 10000-hole sieve surplus<2%, slip is poured in the earthenware porcelain receptacle.
B, slurry put into vacuum drying oven dry, until water ratio about 5%-8%.
C, from baking oven, will expect to take out, carry out manual granulation, will expect 20 mesh sieves, put into tightness system old 10 hours.
D, the material after old is taken by weighing 10g, put into mould, compression moulding, forming pressure is 15Mpa, puts into baking oven after the compacting and dries to constant weight.
The sample of e, oven dry is put into the retort furnace sintering, and firing temperature is 1010 ℃, is incubated 30 minutes, and cooled sample is taken out, and it is carried out Performance Detection, promptly makes required sample.
The oven dry equipment used is a vacuum drying oven among the above-mentioned steps d, and drying temperature is 100 ℃, and be 24 hours time of drying.
The sample size of preparation is diameter 40mm, thickness 3mm.
It is as follows to fill a prescription:
Project |
Diatomite |
Clay |
Wollastonite |
Potassium felspar sand |
Albite |
Talcum |
Embodiment one |
50g |
18g |
9g |
15g |
5g |
3g |
Embodiment two |
50g |
12g |
10g |
18g |
6g |
4g |
Product performance are as follows:
Project |
Water-intake rate (%) |
Ultimate compression strength (Mpa) |
Dimension formula hardness (HV) |
Embodiment one |
17.4 |
6.18 |
38 |
Embodiment two |
17.2 |
6.32 |
39 |
The processing step of the foregoing description two is identical with embodiment one.