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	Epoxy glass cloth laminated board

	Phenolic cotton cloth laminated board

	Phenolic paper laminated board

	Laminated tube, laminated rod

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Product

Laminated rod

一、Summation
It is made of heat hardening resin and cotton cloth or glass cloth, types of phenolic cloth rod are 3722, 3723, 3724, 3725, high mechanical performance and electric performance under normal condition; type of epoxy glass rod is 3841, higher mechanical performance and electric performance under damp condition
二、Requirement
1、Appearance
The surface should be velvet, without air bubble, oil and impurity, unequal color, scratch and slim are available, cracking of laminated glass cloth rod whose diameter exceeds 25mm is available.
2、Nominal diameter and permissible error

Nominal diameter	Windage	Nominal diameter	Windage
5～12	±0.5	＞28～45	±1.5
＞12～16	±0.7	＞45～65	±2.0
＞16～28	±1.0	＞65～100	±2.3

3、Length and permissible error (unit: mm)

Length	Windage	Length	Windage
450～900	±15	＞900～1250	±25

4、Planeness

Diameter（mm）	Non-straightness （max%）	（mm）	（max%）Non-straightness
5～6	2.0	Diameter＞19	0.5
＞6～19	1.0

5、Performance Index

No.	Performance	Unit	Performance Index
No.	Performance	Unit	3722	3723	3724	3725	3841
1	Bending Strength	Mpa	≥110.3	≥89.6	≥110.3	≥82.7	≥241.3
2	Compression Strength	Mpa	≥131.0	≥137.9	≥131.0	≥137.9	≥241.3
3	Parallel Breakdown Voltage	kv	/	≥10	/	≥10	≥15
4	Density	g/cm3	≥1.28	≥1.26	≥1.28	≥1.26	≥1.70

Phenolic cotton cloth laminated rod 3722 3722-1

Phenolic paper laminated rod