Stock PZT4D Piezo Rings for Inkjet Printer
Product Description
Stock PZT4D Piezo Rings for Inkjet Printer
1.Product Description:
Dimension : OD6mm xID2.5mm x Thi2mm
Material :PZT-4D
Application: PIEZO INKJET PRINTERS
2.Size Range of PiezoRing
Outer Dimension from 3mm up to 180mm
Inner Dimension from 1mm up to 150mm
Thickness from 0.2mm up to 25mm
Choice of metallisation (Silver, Nickel, Gold and others on request)
Wide choice of PZT formulations
3.Typical value of "Hard" PZT materials performance：
Hard" PZT materials |
|||||||
Properties |
PZT-41 |
PZT-42 |
PZT-43/4D |
PZT-82 |
PBaS-4 |
||
Dielectric Constant |
ɛTr3 |
1050 |
1250 |
1420 |
1100 |
1900 |
|
Coupling factor |
KP |
0.58 |
0.58 |
0.58 |
0.52 |
0.59 |
|
K31 |
0.32 |
0.33 |
0.34 |
0.3 |
0.34 |
||
K33 |
0.66 |
0.67 |
0.68 |
0.57 |
0.68 |
||
Kt |
0.48 |
0.48 |
0.48 |
0.4 |
0.49 |
||
Piezoelectric coefficient |
d31 |
10-12m/v |
-106 |
-124 |
-138 |
-100 |
-160 |
d33 |
10-12m/v |
260 |
280 |
300 |
240 |
380 |
|
g31 |
10-3vm/n |
-11.4 |
-11.2 |
-11 |
-10.3 |
-9.5 |
|
g33 |
10-3vm/n |
28 |
25.3 |
24 |
25 |
22.6 |
|
Frequency coefficients |
Np |
2280 |
2200 |
2160 |
2280 |
2200 |
|
N1 |
1671 |
1613 |
1583 |
1671 |
1613 |
||
N3 |
1950 |
1900 |
1875 |
1950 |
1850 |
||
Nt |
2250 |
2200 |
2200 |
2300 |
2200 |
||
Elastic compliance coefficient |
Se11 |
10-12m2/n |
11.8 |
12.7 |
13.2 |
11.6 |
13.2 |
Machanical quality factor |
Qm |
1000 |
800 |
600 |
1200 |
2200 |
|
Dielectric loss factor |
Tg δ |
% |
0.3 |
0.4 |
0.5 |
0.3 |
0.5 |
Density |
ρ |
g/cm3 |
7.5 |
7.5 |
7.5 |
7.6 |
7.5 |
Curie Temperature |
Tc |
°C |
320 |
320 |
320 |
310 |
310 |
Young's modulus |
YE11 |
<109N/m3 |
85 |
79 |
76 |
86 |
76 |
Poison Ratio |
0.3 |
0.3 |
0.3 |
0.3 |
0.33 |
4. Inkjet Printer Application
Inkjet printer technology uses a piezo crystal at the rear of the ink reservoir. This is rather like a loudspeaker cone that flexes when an electric current flows through it. So whenever a dot is required, a current is applied to the piezo element which then flexes and,it is forcing a drop of ink out of the nozzle.
There are several advantages to the piezo method. The process permits greater control over the shape and size of the released ink droplet. The minuscule fluctuations in the crystal allow for smaller droplet sizes and hence higher nozzle density. Unlike thermal technology, the ink does not have to be heated and cooled between each cycle. This saves time, and the ink itself is geared more for its absorption properties than its ability to withstand high temperatures. This enables greater freedom in developing new types of inks.