3526 Phenolic Cloth Laminated Tube

 

Production Description

3526 Phenolic Cloth Laminated Tube is made by scouring and desizing cotton cloth impregnated with phenolic resin, and then cured by heating, rolling, pressing, and baking.

 

Application

3526 Phenolic Cloth Laminated Tube has high radial tensile strength, low water absorption, and is suitable for insulating structural parts that require high mechanical strength and can withstand a variety of mechanical processing.

 

Instructions

1) Laminated pipe has different properties from metal, so it should be processed according to JB/Z 141.

2) Due to the low thermal conductivity of the laminated tube, a small feed rate and high cutting speed should be used during machining.

3) After the laminated pipe is processed, it is easy to absorb moisture. It is best to impregnate the insulating paint for moisture-proof treatment.

4) Dust and odor are easily generated during mechanical processing of laminated pipes, so ventilation and dust removal and labor protection of workers should be strengthened.

5) It is best to use dry processing for laminated pipes, because the wet method (cooling with water) can easily change its dielectric properties and affect its use.

6) Store in the original package in a dry, cool, ventilated room or under a shed that is strictly prohibited from fireworks and fire. The storage period is twelve months from the date of leaving the factory.

 

Technical Data

Table 1 (unit mm）

 

Nominal inner diameter	Allowable deviation of inner diameter	Minimum wall thickness	Allowable deviation
			Wall thickness≤10	Wall thickness ＞10
10~80 (Multiples of 2 or 5)	±0.5	1.5	±0.5	±1.0
≥85 (Multiple of 5)	±0.5	2.0
Note: Non-standard specifications can be produced through negotiation between the supplier and the buyer.

Table 2 (unit mm)

Nominal length	Allowable deviation
800	+25
900	±25

Table 3

No	Indicator name		Unit	Index value	TEST METHOD
1	Density:		g/cm3	1.04~1.20	GB/T 5132
2	Water absorption		%	≤4
3	Thermal stability		℃	≥130
4	Bending strength		MPa	≥80
5	Compressive strength		MPa	≥45
6	Surface resistivity	normal state	Ω	≥1.0×108
		Damp		≥1.0×107
7	Volume resistivity	normal state	Ω·m	≥1.0×107
		Damp		≥1.0×105
8	Vertical layer direction electric strength (50Hz, 20℃±5℃ in transformer oil)		MV/m	≥3.5

Special Note

The company strictly controls product quality in accordance with relevant product standards. Due to the diversity and variability of application conditions and many other factors, it does not rule out the need for users to conduct experiments on their own. Legally, certain properties of the product are not guaranteed to be fully applicable to a specific purpose, and the right to modify the information is reserved.

 

Picture of Factory