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Specially formulated for wire drawing applications. This fine-grained zirconia ceramic
provides extreme Hardness, an exceptionally smooth wire drawing surface and
excellent corrosion resistance.
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Hardness
Specially formulated, zirconia ceramic is the most man-made material for wear applications such as wire drawing capstans.
Corrosion Resistance
Specially formulated, zirconia ceramic is highly resistance to attack by corrosion problems(chemical contents used in processing of wire drawing).
The corrosion resistance fo zirconia ceramic is far superior to metal.
Surface Finish
The superior surface by high polish prshi aocessing result in high quality of the drawn wire plus extended die life.
Originality
Providing excellent hardness, corrosion resistance, superior surface finish, ceramic capstans attained worldwide estimation in wire drawing industries field.
Product Description In order to meet the needs of high quality and productivity of metal wire drawing machines production,our company has successfully developed the ZrO2 ceramic wire drawing capstans with the strong technical supports from the relative university and research institutes.The ZrO2 ceramics is a type of new hi-tech with the following advantages which compared with traditional AI2O2 ceramics.
1High strength and fracture toughness
2High hardness and wear resistance
3its coefficient of thermal expansion almost attain the common metal
4Low thermal conductivity Featured with high strength and fracture toughness,ZrO2 ceramics has been well known as the ceramics steel.Its fracture toughness is the highest among all types of ceramics and its machining performances are excellent.with the perfection OF ZrO2v formula and those features guarantee their uncomparable wear-resistance with the traditional ceramics.after machining,the fine grain ceramics can gain very low surface roughness(<0.1UM),thus improve the quality of the finished wire rods.The fine grain ZrO2 ceramics is capable of self-lubrication and better polish can be expected after service.The modulus of elasticity and the coefficient of thermal expansion of the ZrO2 ceramics are similar to those of the steel,making it available to form a compound wire rod drawing wheel with its steel parts.And the damages or cracks can be avoided because of their balanced thrmal expansion Practical use prove that the ZrO2 ceramic wire drawing capstans are the perfect spare parts for modern high speed wire drawing machines.
ceramics performance paramcter
NO.
item
unit
materials
A-95
A-97
A-99
ZTA
ZRO2
1
density
g/cm
3
3.6
3.65
3.7
4.0-4.3
5.5-6.05
2
bending strength
Mpa
300
350
400
700
1100
3
fracture toughness
Mpam
1/2
4
4.5
5
7
12
4
Hardness
HRA
≥86
≥88
≥89
≥90
88-90
Modulus of elasticity
GPa
320
350
390
300
220
5
coefficient of linear expansion
X10
-6
/k
6.5-11.2
6
Minimal residual unbalance of up to
Gmm/kg
≤0.8
7
unbalance reduction rate
≥85%