Technical laminates – tubes and rods

PAPER PHENOLIC TUBES

Tubes type acc. to DIN 7735: Hp 2065
The tubes made from cellulose paper as a basis and phenolformaldehyde resin as a binder. This tubes are used like insulating and constructive material for various electrical equipment construction.

Available dimensions: The tubes are produced from inside diameter 5,2 mm.
The wall thickness is from 2 mm.
The tube length is 1050 mm.

Machining: The tubes are machined by cutting, milling, drilling, turning.

Properties	Unit	Value
Density	g/cm³	1,05 1,30
Flexure strength, min.	MPa	75
Pressure strength, min.	MPa	40
Insulation resistance after 96 hours in water 85%, min.	Ω	5.108
Breakdown voltage in oil pallarel to layers by 90°C for 20 mm, min.	kV	25
Electrical strenght in oil, pallarel to layers by 90°C, min.	kV	10

COTTON PHENOLIC TUBES

Tubes type acc. to DIN 7735: Hgw 2085
The cotton phenolic tubes are made from cotton fabric as a basis and phenolformaldehyde resin as a binder. This tubes are suitable for production of chambers of expansionary small-oil schwiters, case bearing etc.

Available diameters: The tubes are produced from inside diameter 5,2 mm.
The wall thickness is from 2 mm.
The length is 650 mm for inside diameter 5,2 mm to 25 mm.
The length is 1350 mm for inside diameter 25 mm and more.

Machining: The tubes are machined by cutting, turning, drilling and milling.

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Properties	Unit	Value
Density	g/cm³	1,15 1,42
Flexure strength, min.	MPa	80
Pressure strength, min.	MPa	40
Insulation resistance after 96 hours in water 85%, min.	Ω	1,0.107
Breakdown voltage in oil pallarel to layers by 90°C for 20 mm, min.	kV	15
Electrical strenght in oil, pallarel to layers by 90°C, min.	KV.mm-1	2

GLASS EPOXY TUBES G11 – Hgw 2375

Tubes type acc. to DIN 7735: Hgw 2375
The glass epoxy tubes are made from modified glass fabric as a basis and epoxy resin as a binder. This tubes have very good mechanical and electrical properties at high huminidy and mechanical strenght at higher temperatures.

Available dimenisons: The tubes are produced from inside diameter 5,2 mm.
The wall thickness is from 2 mm.
The tube length is 1050 mm.

Machining: The tubes are machined by cutting, turning, drilling and milling

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Properties	Unit	Value
Density	g/cm³	1,85
Flexure strenght, min.	MPa	280
Pressure strengtht, min.	MPa	150
Insulation resistance after 96 hours in water 85%, min.	Ω	1,0.108
Breakdown voltage in oil pallarel to layers by 90°C for 20 mm, min.	kV	20
Electrical strenght in oil, pallarel to layers by 90°C, min.	KV.mm-1	10

COTTON PHENOLIC RODS

Norm: Hgw 2088
Rolled cotton phenolic rods are made from cotton fabric and phenolformaldehyde resin as a binder. There are suitable as a constructive material for production of various components (mechanically and electrically stressed).

Available diameters: The rods are produced from diamter 6 mm to 200 mm.
The tube length is 1000 mm.

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Properties	Unit	Values
Flexure strenght, min.	MPa	100
Pressure strenght, min.	MPa	100
Tension strenght, min.	MPa	50
Insulation resistance, min.	Ohm	107
Temperature class		E
Breakdown voltage in oil pallarel to layers by 90 oC diam. 20 mm (min.)	kV	10
Density	kg.m-3	1300-1420

GLASS EPOXY TUBES G11 – Hgw 2375.4

Tubes type acc. to DIN 7735: Hgw 2375.4
The glass epoxy tubes are made from modified glass fabric as a basis and epoxy resin as a binder. This tubes have very good mechanical and electrical properties at high huminidy and mechanical strenght at higher temperatures.
Available dimenisons: The tubes are produced from inside diameter 5,2 mm.
The wall thickness is from 2 mm.
The tube length is 1050 mm.

Machining: The tubes are machined by cutting, turning, drilling and milling

Properties	Unit	Value
Density	g/cm³	1,7-1,9
Flexure strenght, min.	MPa	300
Pressure strengtht, min.	MPa	175
Insulation resistance after 24 hours in water min.	Ω	1,0.103
Breakdown voltage in oil pallarel to layers by 90°C for 20 mm, min. 1-min. proof test 20s step-by-step voltage increas. test	KV/mm	40 40
Electrical strenght in oil, pallarel to layers by 90°C, min. for thickness 1 mm for thickness 5 mm	KV.mm-1	11,6 7,7
Water absorption, max.	mg/cm²	1,5
Thermal endurance	T.I.	155