Alumina ceramic eyelets/yarn guides/yarn guides/yarn guides for textile machines

1.Material: 85 - 99.5% alumina ceramic2.Purpose:used in textile machinery3.Good quality Alumina Ceramic Yarn Guide / Eyelet Guide / Thread guide For Textile Machinery Gongtao company mainly produce ceramic parts and components for Textile Machinery,such as ceramic pulley ,ceramic

Featured Products

1.Material: 85 - 99.5% alumina ceramic
2.Purpose:used in textile machinery
3.Good quality
 

Alumina Ceramic Yarn Guide / Eyelet Guide / Thread guide For Textile Machinery
 
Gongtao company mainly produce ceramic parts and components for Textile Machinery,such as ceramic pulley ,ceramic guides,ceramic pigtails,dogtails.
 

Property

Item:

AL 2 O 3

AL2O3/TiO2

Cr2O3

ZrO2

Feature

The hardest in all oxide

Tenacity,good wear-resistance

Low porosity

High density,
High thermal resistance

The coating film can be bent

Low coating porosity

Connection of grain

Low thermal conductivity

Good insulating property

Densify and smooth

High sticking probability

Best thermal insulation

Property

Hardness ( HRA)

80

75

75

60

Porosity%       (Open bore)

8 / (7)

6/(4)

4/(2)

8/(7)

Resistivity

1.14*10-2
(260°C)

___

___

6.9*10-2
(260°C)

Ohm.cm

3.0*10-2
(427°C)

5.3*10-2
(427°C)

Bond strength KGF/cm2

>300

>300

>300

>300

Coefficient of thermal expansion
21-1232°C*10-6

7.3

6.5

8.9

9.6

Thermal conductivity (W/m.K)

2.7

2.8

2.6

1.15

Thermal shock resistance

Good

Good

Good

Good

Corrosion resistance

Excellent

Good

Excellent

Excellent

Spraying material

Metal,ceramic and other material

Metal,ceramic and other material

Metal,ceramic and other material

Metal,ceramic and other material

Thickness of spray in mm

0.1-1.0

0.1-1.0

0.1-1.0

0.1-1.0

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