Alumina ceramic round rod

Alumina Ceramic Rods and Ceramic Plunger Rods Product Introduction:

Zirconia Ceramic Rod Product Features:

1. Excellent Physical Properties: Mohs hardness up to 8.5-9.1, close to natural diamond, and more than 30% lighter than metal; fracture toughness reaches 8 MPa·m¹/²; bending strength exceeds 1200 MPa; melting point is 2700℃; can work stably for a long time at high temperatures of 1000℃.

Chemical stability is 10 times higher than stainless steel, resistant to strong acids and bases.

2. Production Process: Processed using isostatic pressing technology to form a uniform and dense ceramic layer; sintering temperature is 1400-1600℃, with two processes: conventional sintering and hot isostatic pressing; precision machining uses diamond grinding wheels + laser polishing, with a roundness error of ≤0.005mm.

Application Areas:

• Semiconductor wafer manufacturing (robotic arm drive shaft)

• New energy field (fuel cell membrane)

• Medical equipment (artificial joints, dental restorations)

• Mining machinery (wear-resistant lining)

Alumina Ceramic Plunger Rod Product Features

1. Core Advantages: Hardness ≥ 9 Mohs (close to diamond), wear resistance is 5-10 times that of metal; excellent corrosion resistance, mass loss <0.01% in 10% hydrochloric acid for 30 days; surface roughness Ra ≤ 0.008μm, friction coefficient as low as 0.02; wide operating temperature range (-273℃ to 1000℃).

2. Structural Design:  Often uses a steel-ceramic composite structure, combining the strength of metal with the wear resistance of ceramic; segmented design reduces internal stress and improves temperature change resistance; special oil groove and cleaning sleeve design prevent impurity accumulation.

3. Specifications:

• Working Pressure: Up to 320MPa.

• Plunger Diameter: 2-40mm (customizable).

• Service Life: 3-5 times longer than metal plungers.

4. Application Fields:

• Medical equipment (hemodialysis machines, insulin pumps).

• Oil extraction (core components of oil pumps).

• Chemical production (high-pressure pumps, metering pumps).

• Airless spray equipment.

Product Comparison

Supports custom specifications.