Ceramic based liner has good resistance to wear / flow friction, it can be not only adapted to some enough environment such as deep oil reservoir, hard stratum and severe earthiness, but also used for offshore oil and natural gas exploitation.
★Ceramic liners have better performance than metal liners in wear proof, corrosion resistant and service life.
★The material of ceramic liner is the most advanced international increased flexible Zirconium. As per this material, the tenacity breakpoint is K10--15MPa ( 10 times of the ordinary material), bending strength is σ600--800Mpa with Weber coefficient is m18 and modulus of elestity of E200Gpa.
★These new ceramic liners are made for superior performance under tough corrosive and abrasive conditions.
★The HRC is more than 60°. Each liner is machined to close tolerances to assure ease of installation and long liner life.
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No#
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Testing item
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Testing condition/ Unit
|
Performance
|
||
|
ZrO2
|
ZTA
|
A-99
|
|||
|
1
|
Bulk density
|
Room temperatureg/cm³
|
5.5-5.8
|
4.18
|
3.87
|
|
2
|
Bending strength
|
Room temperature/MPa
|
600
|
500
|
450
|
|
3
|
Compressure strength
|
Room temperature/MPa
|
4500
|
4200
|
3800
|
|
4
|
Break tenacity
|
Kic(Mpa.M﹣½)
|
7
|
6
|
6
|
|
5
|
coefficient of linear expansion
|
(200-500) ℃1/℃
|
7.0×10-6
|
6.9×10-6
|
6.9×10-6
|
|
6
|
Thermo stability
|
(Room temperature-800)℃
|
>=7times
|
>=6times
|
>=5times
|
|
7
|
Chemical stability
|
10%HClmg/cm³
|
5.5
|
5.3
|
5.3
|
|
1:9NaOH mg/cm³
|
0.16
|
0.14
|
0.12
|
||