Product Details

Textile Machinery alumina Ceramic thread guide

Product Description

Ceramic thread guideis the content of 95% or 99% alumina as raw material, made by high temperature of 1600 ° C for sintering. Alumina textile ceramic with superior strength, hardness, insulation, thermal conductivity, high temperature, oxidation resistance, corrosion resistance, abrasion resistance, high temperature strength and other characteristics, it has been widely used in engineering, mechanical seals, electronics, instrumentation, sensing, transport, communications, and other occasions or areas.

Features of Ceramic Thread Guide:

1) A variety of specifications available.

2) Satisfy various technical request

3) Lower medium spoilage

4) Good insulation performance and high temperature resistance

5) Stiffness texture

6) Used in all electric products, electric heating products and wear resistant machinery parts.

Parameter of Ceramic Thread Guide:

Performance For Industrial Ceramic
Item			Unit	90 Al2O3	95 Al2O3	99.7 Al2O3
Physical Characteristics	Heat resistance		0C	1500	1550	1800
	Bulk density		g/cm3	3.6	3.6	3.9
	Water absorption		%	0	0	0
Mechanical Characteristics	Flexural strength		Mpa	320	340	360
	Hardness vickers		Gpa	12.2	13.5	15.6
	Elastic modulus		Gpa	280	320	370
	Poisson’s ratio			0.22	0.23	0.23
Thermal Characteristics	Linear expansion coefficient		(20-5000C) 10-6/0C	7.1	7.2	8
	Thermal conductivity		w/(m.k)	16	24	32
	Specific Heat		10-3J/(kgK)	0.78	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)		-	9	9.4	9.9
	Dielectric loss angle		*10-4	15	5	1
	Dielectric strength		*106V/m	12	15	15
Processing technology
Process range (mm)
Outside Diameter		1---300
Inside Diameter		0.5---300
Length		0.5---1200
Accuracy of working (mm)
Perpendicularity		0.01
Concentricity		0.01
Roundness		0.005
Straightness		0.005
Parallelism		0.01
Planeness		0.005
Roughness		0.05
Fit clearance		0.005