Abrasive Resistant Customized 99.5% Alumina Piston Valve Rod Ceramic Shaft

• Application: Electronics, Medical, Refractory, Structure Ceramic, Industrial Ceramic
• Type: Ceramic Parts
• Certification: ISO9001:2008, RoHS
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: Customized
• Feature: Vacuum, Corrosion Resistant
• Style: Without Outer Ring
• Rows Number: Multiple
• Shaping Methods: Dry Pressed, ISO Pressed, Hot Pressed
• Density: Over 5.95g/cm3
• Surface Treatment: Diamond-Like Polishing
• Secondary Process: CNC Machining, Fine Grinding
• Tolerance: Od and ID Best to Be 0.005mm
• Certificate: RoHS, Reach, ISO9001:2008
• Usage: Ceramic Holder, Structure Ceramic Parts
• Transport Package: Individual Packaging
• Specification: Max. OD to be 800mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 5000000PCS/Month
• Package Size: 36.00cm * 20.00cm * 24.00cm
• Package Gross Weight: 8.000kg

Product Description

Abrasive Resistant Customized 99.5% Alumina Piston Valve Rod Ceramic Shaft
 

Product Description

The main features of the alumina ceramic shafts

1. Excellent wear resistance with much low friction coefficiency, therefore  it can offer much longer service life than stainless steel one.

2. High hardness: over 9 on Mohs scale, diamond being 10, with a satin-smooth surface finish

3. Good chemical and corrosion resistance, it won't react with almost all strong acides and alkalis except for HF.

4. It won't oxided and rust forever in any harsh conditions and enviroments.

5. It offers ligh-weight advantage than both stainless steel and zirconia ones.

 

The specification of ceramic parts

Material option	99%,  99.5% and 99.8% alumina optional
Forming methods	Dry pressed, Ceramic injection molding, Hot pressed, ISO pressed
Specification	OD can be from 1 to 50mm, length can be from 10mm to 800mm
Precision processing	CNC machining, Precision grinding, Polishing, Lapping,
Tolerance	The tolerance of OD and ID can be 0.001mm,  the tolerance of length can be 0.001mm
Key parameters	Roughness to be 0.02mm, Parallelism to be 0.001mm
Surface quality	Free of cracks, foreign contamination, mirror surface better than Ra0.1

 

Products category

The gallery of technical ceramic parts

Technical Datasheet

 

Property	Units	Material
		99.5% alumina	99% alumina	95% alumina	ZrO2 (Y-TZP)	ZrO2 (TTZ)
Density	g/cm^3	≥3.85	≥3.80	≥3.60	≥5.95	≥5.72
Water absorption	%	0	0	0	0	0
Hardness	HV	1700	1700	1500	1300	900
Flexural strength	Mpa	≥379	≥338	≥320	≥1200	≥1200
Compressive strength	Mpa	≥2240	≥2240	≥2000	≥1990	1750
Fracture toughness	Mpa m^1/2	4-5	4-5	3-4	6.5-8	11
Max. service temperature	ºC	1675	1600	1450	1000
CTE	1×10 ^-6/ºC	6.5~8.0	6.2~8.0	5.0~8.0	8.0~9.5	10.2
Thermal shock	T(ºC)	≥250	≥200	≥220	≥300	350
Thermal conductivity(25ºC)	W/m.k	30	29	24	3	3
Volume resistivity	ohm.cm
25ºC		>1 x 10^14	>1 x 10^14	>1 x 10^14	>1 x 10^11	>1 x 10^11
300ºC		1 x 10 ^12	8 x 10^11	10^12 -10^13	1 x 10 ^10	1 x 10 ^10
500ºC		5 x 10 ^10	2 x 10^9	1 x 10^9	1 x 10^6	1 x 10^6
Insulation strength	KV/mm	19	18	18	17	20
Dielectric constant(1Mhz)	(E)	9.7	9.5	9.5	29	28

 

Why choose us?

1. Various selections of shaping equipment, mainly including dry pressing, ceramic injection molding (CIM), hot pressing, and Cold isosatic pressing
 

 

2. In-housing CNC machining, and precision dimensional checking

 

Certifications

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FAQ

Q1. Are you a factory or trading company?
A: We are a manufacturer with over 16 years of experience. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight is collected.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call or tell us in your email so we can proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demands as per different materials, dimensions, and designs.