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Customized high precision Zirconia Ceramic Top Comb Processing

Zirconia ceramic 
1. High hardness: 
zirconia ceramics have high hardness and good wear resistance.

2. good high temperature resistance: 
zirconia ceramics have high high temperature resistance and can work for a long time in high temperature environment of 1200℃-1600℃.

3. excellent oxidation resistance: 
zirconia ceramics have good oxidation resistance in the air, not easy to have chemical reaction with oxygen.

4. High strength: 
zirconia ceramics have high flexural and tensile strength, and can withstand greater pressure.

5. good electrical insulation properties: 
zirconia ceramics have excellent electrical insulation properties, suitable for making electrical
Availability:
Quantity:
  • 02A30

  • HaoRui

Ceramic top comb, also known as ceramic top teeth and ceramic comb. It is a main component of straight combing machine. The top comb rises when combing sillim combing, and falls when separating tufts, combing the tail of the fibre tufts which have been combed by sillim combing. The position should be close to the extraction stage in the extraction of the skin plate (skin roller), the spacing to 0.5 ~ 1mm is appropriate to ensure that the fibre tufts are not combed to the part of the comb tin can be combed by the top comb.

Zirconia ceramic processing methods, machining methods of high efficiency, and therefore widely used in industry, especially diamond grinding, grinding and polishing is more common. Zirconia ceramics other processing methods are mostly suitable for punching, cutting or micromachining. Most of the cutting with diamond grinding wheel grinding cutting, punching holes in accordance with different apertures were ultrasonic processing, grinding or grinding mode processing.


Zirconia ceramic top combs are machined with attention to machining accuracy and chipping. Generally, the teeth are first machined on a grinding machine, and then the holes or threads on the top comb are machined on a CNC machine specialised in ceramics. Depending on the size and number of teeth, the machining time varies considerably. Zirconia ceramic top combs have low electrical conductivity and high chemical stability. Therefore, these characteristics of the ceramic material must be taken into account when the ceramic top comb is subsequently processed, and finishing of the ceramic by electrical processing or chemical etching is generally not possible. Commonly used zirconia ceramic top comb processing equipment are: grinding machine, CNC machine tools, CNC machine tools are best to use zirconia ceramic top comb special machine tools.


The strength of zirconia ceramics is sensitive to the processing conditions and it is difficult to achieve high processing efficiency, so the processing cost of zirconia ceramics is much higher than that of ordinary materials.

Zirconia Ceramic Performance Table

Property
ItemDataUnit
Mechanical CharacteristicsColorIvory-
Density6.02
g/cm3
Bending Strength800MPa
Compressive trength3000MPa
Elastic Modulus200GPa
Fracture Toughness8MPa m1/2
Weber Coefficient15m
Vickers Hardness1200HV 0.5
Thermal CharactericsCoefficient of Line Thermal Expansion1010-6K-1
Thermal Conductivity3W/mK
Thermal Shock Resistance(Put in Water)300ΔT °C
Max Working Temperature1000°C
Electrical CharacteristicsVolume Resistance at 20°C>1013Ωcm
Dielectric Strength11×106V/m
Dielectric Constant33εr
One MHZ Dielectric Loss Angle at 20°C0.0016tanδ
Chemical CharacteristicsNitric Acid (60%) 90°C≒0.00WT Loss mg/cm^2/day

Sulphuric Acid (95%) 95°C0.04

Caustic Soda (30%) 80°C0.08



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