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Vacuum injection pultrusion rodVacuum injection pultrusion rodVacuum injection pultrusion rod
Vacuum injection pultrusion rodVacuum injection pultrusion rodVacuum injection pultrusion rod

Vacuum injection pultrusion rod

The vacuum injection epoxy glass fiber drawing rod is an insulating product made of an alkali-free and flawless glass fiber yarn impregnated with an epoxy composite rubber, which is vacuum-injected, continuously pultrusion and solidified, and has good electrical properties and mechanical strength, and at the same time, High temperature and stress corrosion resistance. Can be processed according to different requirements: slotting, turning, picking, etc.
The diameter of the mandrel is from φ3 to φ130mm, and the new mold can be made according to the user's demand.

Henan Jingwei Electric Power Technology Co.,Ltd.

Description
1. According to customer requirements can be made into any length, length tolerance is not more than ± 2mm.
2. The nominal diameter and allowable deviation shall comply with the requirements of (Table 1).
3. Appearance: There is no bonding wire on the surface, and there is no crack or crack inside the mandrel. Allows uneven color on the surface and does not affect the slight build-up of the glue.
4. The mandrel should be able to withstand machining such as sawing, drilling, milling, planing and buckles.
5. Physical, mechanical properties and dielectric properties should meet the requirements of (Table 3).
Technical Dates
Nominal diameter  Deviation
 3、8、10、12、13、14、15、15.7、16、16.2   ±0.10
 18、20、22、24、25、28、30、32  ±0.10
 34、35、36、38、39、40、41、43、45、 46、50、53、55  ±0.10
 60、66、68、70、80、90、100、110、120、130   ±0.15

1. The physical, mechanical and dielectric properties of the mandrel should meet the requirements of Table 1.

Serial number

Indicator name

Unit

Epoxy slats

High temperature resistant

Acid and high temperature resistant

1

Density

g/cm³

>1.90

>2.10

>2.15

2

Water absorption rate

%

<0.05

<0.05

<0.05

3

Tensile Strength

Mpa

>520

≥1000

≥1200

4

Bending strength

Mpa

>500

≥1000

≥1100

5

Hot bending strength 150±2°C

Mpa

 

≥300

≥300

6

Surface withstand voltage 1min normal

kV

10

 

 

7

Water diffusion test (0.1% Nacl boiling for 100h)

kV/1min

 

12

12

8

Leakage current

μA

 

≤50

≤50

9

Redness test

min

 

≥20

≥20

10

Stress corrosion resistance (1mol/1HNO3, 67% stress)

h

 

≥100

11

Lightning impulse withstand voltage (100kV)

Times

 

≥5

≥5

12

Volume resistivity

Ω·m

 

≥10

13

DC breakdown withstand voltage

kV

 

≥50

≥50

14

AC breakdown withstand voltage

kV

 

≥50

≥50

15

Twist strength

Mpa

 

≥800

≥800

16

Interlaminar shear strength

Mpa

 

≥50

≥50

17

Barcol hardness
-

 

≥50

≥50

18

Glass fiber content
%

 

≤80

≥50

19

Swing fatigue test

Times

 

≥12Ten thousand

≥50

 

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