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TOYO HB-77,NF-77 Vulcanized Fibre----[[LIREN ELECTRICAL INSULATION MATERIALS]]
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TOYO  Vulcanized Fibre

Description:

 

 

 TOYO Vulcanized Fibre from Japan is a material manufactured by gelatinizing several plies of high purity cellulose papers. It has extremely high internal bond strength, and mechanically excellent punching, forming, machining and many other unique properties. TOYO proudly carries specialty grades to comply any application required by users, such as water resistant grades, flame retardant grades, combination grades etc. in roll, sheet and coil.

Main Types:

 

 

HB-77: This fibre uses original cotton fibre sheets as its raw material. The available colors are red, white, gray and black. It is the                     general used fibre which can be used for motors, speakers and other electrical appliances.

  HB-77 Characteristic 

Properties

Units

Typical Value

Nominal Thickness

mm

0.25,0.35,0.4,0.5,0.8,1.2,1.6,2.0,2.4,3.2,4,4.8,6.4,8,10

Density

g/cm3

 

1.15

Tensile

Strength

MD

kgf/mm2

9.5

TD

kgf/mm2

5.3

Dielectric strength

KV/mm

6.9

Water Absorption (Max)

% / 2hrs

52

% / 24hrs

66

Ash content (Max)

%

Red

Grey

Black

 

 

5

1

1

Zinc Chloride content

%

0.05

 

NF-77: NF-77 is a UL listed flame retardant vulcanized fibre with good tracking rate, high ampere-arc, and hot wire ignition rate.     

        It has almost the same workability as the standard grade, but can be easily flexed if slightly pre-heated.

Properties

Units

Value

Standard thickness

mm

0.25~1.6

Flame class

 

UL 94 V-0

Hot wire ignition

sec

min 300

High ampere-arc

 

min 200 times

Tracking

V

420

Heat deflection temp.

120

Electrical insulation

 

Good

 

K-57 :  K-57 is listed in Class E of Japan Electricity Regulation. It has an ideal incorporation of good workability of fibre and dimensional stability.

PRODUCT CATEGORY                                    

The classification of our products listed below is based upon TOYO's recommendation as general purpose only.

Product Classification

Product Name

Available Color

UL Approved

General purpose, electrical & reinforced properties for mechanical requirement

HB-77

N, R, B, SW

Yes

FP

DB

Yes

Flame Retardant

NF-77

N, R, B, SW

Yes

NF-95FP

N, R, B, SW

Yes

RNF-97FP

N, R, B, SW

Yes

Heat Resistance

K-57

N, R, B, SW

Yes

RK-76

N, R, B, SW

Yes

RK-76HB

N, R, B, SW

Yes

RGFK-57

N

Yes

Water Resistance

RNFK-88

CH

Yes

NFK-88

CH

Yes

RNF-77

N,R,B,SW

Yes

 

 

Color Code
N = Natural (Grey)
R = Red
B = Black
SW = White
DB = Deep Blue
CH = Chocolate

Color Sample

N

R

B

SW

 

 

 

 

 

Note: These values are typical performance data for the products; they are not intended to be used as design data. TOYO is a registered trademark of TOYO FIBRE

 

 

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