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Non-alkali glass fiber grinding wheel reinforced mesh

Alkali-free glass fiber grinding wheel reinforced mesh is made of glass fiber cloth coated with phenolic resin and epoxy modified resin and dried and punched. When needed, it is covered with non-woven fabric and black paper, which has excellent tensile strength and flexure resistance. Performance, good combination with abrasives, good heat resistance during grinding and cutting, etc. It is the best reinforcing substrate for various resin grinding wheels.

1. Enhanced cloth

1) Product description

The alkali-free glass fiber grinding wheel reinforced mesh fabric is a woven fabric made of glass fiber yarn treated with a silane coupling agent. The structure is divided into two types: plain weave and strand weave. With good combination and smooth surface, it is the base material of glass fiber reinforced sheet.

2) Specification expression method

Take EG6.5 * 5.4-115 / 190 as an example:

Glass composition: C means medium alkali, E means no alkali;
Organization structure: G means twisted weave, P means plain weave;

Warp density: indicates that the density of warp yarns per 25mm is 6.5;

Weft density: It means that the density of yarn in every 25mm weft direction is 5.4;

Width: 115 means the width of the cloth;

Gram weight: 190 means mass per unit area;

2. Enhancement film

1) Product description

The alkali-free glass fiber grinding wheel reinforced mesh is made of glass fiber cloth coated with phenolic resin and dried and punched. It is covered with non-woven fabric and black paper when needed. It has excellent tensile strength and flexural resistance, and is combined with abrasives Good performance, good heat resistance during grinding and cutting, etc. It is the best reinforcing substrate for various resin grinding wheels.

2) Specification expression method


Take EG190-6.5 * 5.4 / 178 * 23V + W as an example:

The surface of the reinforcing cloth is similar to the above;

Reinforcement outer diameter: it means that the outer diameter of the reinforcement is 178;

The inner diameter of the reinforcing sheet: it means that the inner diameter of the reinforcing sheet is 23;

Surface: V + W means non-woven waxed paper (W means waxed paper, P means black paper, B means black)


The alkali-free glass fiber wheel reinforced mesh has the properties of light weight, high strength, good flatness, small elongation, temperature resistance, wear resistance, non-toxic and odorless, and can meet the current and upgrade needs of customers' automation equipment. Various grinding wheels made of this material have excellent safety, flatness, wear resistance, high-speed cutting resistance, heat resistance and other excellent properties.

The main technical performance indicators of the products are shown in the following table


Volatile content
%

Insoluble content

Resin content
%

Outer diameter
mm

Inner diameter
mm

strength
N / TEX

7 ~ 13

≤5

26 ~ 35

37 ~ 860

7 ~ 110

≥0.5


Comparison of composition between medium-alkali glass fiber and non-alkali glass fiber

Ingredients

SiO2

Al2O3

Fe2O

CaO

MgO

K2O

Na2O

B2O3

TiO2

other

Alkali glass fiber

67%

6.20%


9.50%

4.20%

12%



1.10%

Alkali-free glass fiber

54.18%

13.53%

0.29%

22.55%

0.97%

0.10%

0.28%

6.42%

0.54%

1.14%

Performance comparison of medium-alkali glass fiber and non-alkali glass fiber

performance




Variety

Mechanical Performance

density
(g / cm3)

Anti-aging performance


Water resistance


Moisture resistance

Tensile Strength
(MPa)

Elastic Modulus
(GPa)

Elongation
(%)

weightlessness
(Mg)

Alkali analysis
(Mg)

Strong loss after one week
(%)

Alkali glass fiber

2650

69

3.84

2.5

general

25.8

9.9

20%

Alkali-free glass fiber

3058

72

4.25

2.57

better

20.98

4.1

5%


Advantages of alkali-free glass fiber reinforced materials

1 Thinner mesh, higher strength, more uniform warp and weft forces

Take EG6.5 * 5.4-190 as an example

Sample mesh

Yarn number

Thickness / mm

Powerful (N / 25mm)

Strength (N / tex)

vertical

Weft direction

vertical

Weft direction

vertical

Weft direction

Domestic counterparts

EG5.8 * 6-190

400

420

0.789

1102

1481

0.475

0.59

Jiuding alkali-free

EG6.5 * 5.4-190

400

400

0.688

1625

1651

0.625

0.75

Internal peers VS Jiuding alkali-free

difference

0

0

-0.023

523

170

.0150

0.16

Difference rate%

0

0

-3.23%

47.46%

11.48%

31.58%

28.01%

2. The appearance is more perfect

(1) Keep flat for a long time

(2) The mesh is clearer and more square

(3) The edges are not easy to spread

(4) Can meet the current and upgrading needs of customers' automation equipment

3. Better grinding wheel performance

(1) Test data of grinding wheel 355 * 2.8 * 25mm (Jiuding alkali-free EP8 * 8-260)


Grinding wheel

Blasting ≥8062rpm

Single point lateral compliance test ≥125N

Three-point lateral load test ≥150N

Impact test ≥5.4NM

1

10200

168.33

242.11

8.15

2

10380

166.97

231.71

8.15

3

10680

165.89

247.90

8.15

4

10410




5

10650




average

10464

167.23

240.57

8.153


(2) Comparison between Jiuding mesh wheel and domestic counterpart mesh wheel, 115 * 6.4 * 22mm, 6-month slewing performance tracking test data

Grinding wheel mesh specifications

Blasting / B (rpm)

(20140611)

Two months after the change

Blasting / B (rpm)

(20141223)

Six months after the change

Domestic counterparts

CG5 * 5-260

22161

21247


20968


22184

21417


21067


average

22172.5

21332

-3.79%

21017

-5.21%

Jiuding

EG5 * 5-260

25476

25437


24655


24594

24428


24318


average

25035

24933

-0.41%

24487

-2.19%

compare results


12.91%

16.88%


16.51%



Serial number
No.

Product specification
Specifications

Grey fabric tensile fracture
Tensile Strength of Raw Cloth ≥N / 50mm

Tensile breaking strength of adhesive tape and mesh
Tensile Strength of Coated Cloth and Discs ≥N / 25mm

Warp

Weft

Warp

Weft

1

EG8 * 8-50

450

400

420

350

2

EG14 * 14-53

450

500

360

360

3

EG10 * 10-55

420

550

400

420

4

EG10 * 9.5-60

550

500

420

420

5

EG12 * 12-65

500

600

450

450

6

EG14 * 14-65

450

700

450

450

7

EG14 * 14-75

600

750

550

550

8

EG5 * 5-80

650

750

550

550

9

EG14 * 13.5-85

750

700

660

660

10

EG8.5 * 7.6-85

700

800

600

600

11

EG6 * 6-95

800

950

550

550

12

EG10 * 9-100

800

950

720

720

13

EG5 * 5-105

850

1000

880

880

14

EG7 * 7-110

880

1100

830

910

15

EG14 * 13-125

1150

1050

960

960

16

EG6 * 6-125

1000

1250

840

840

17

EG8 * 8-125

950

1250

900

900

18

EG8.5 * 7.3-125

1000

1150

900

900

19

EG7 * 6-130

1150

1300

1100

1050

20

EG7 * 6.3-140

1150

1300

1020

1020

21

EG7 * 7-148

1150

1500

1080

1080

22

EG5 * 5-160

1300

1500

1300

1300

23

EG5.5 * 4.5-160

1300

1450

1300

1300

24

EG6 * 6-160

1300

1500

1200

1200

25

EG8.5 * 7-160

1400

1500

1200

1200

26

EG5 * 4-190

1700

1600

1500

1250

27

EG6 * 6-190

1500

1850

1550

1550

28

EG6.5 * 5.4-190

1550

1900

1550

1550

29

EG6.5 * 6-200

1550

1900

1550

1550

30

EG5.5 * 4.5-210

1850

1850

1600

1600

31

EG6 * 6-230

1900

2000

1680

1680

32

EG6 * 5-230

1900

2000

1750

1600

33

EG8.5 * 6.3-235

2000

2000

2050

1650

34

EG5 * 4-240

2100

2000

2000

2000

35

EG8.5 * 7-247

2000

2200

1850

1950

36

EG5 * 5-260

2100

2500

1920

1920

37

EG5.5 * 4.4-260

2300

2300

2000

2000

38

EG5.5 * 5.3-285

2300

2700

2040

2040

39

EG5 * 4.8-330

2550

3450

2200

2550

40

EG5.5 * 4.3-330

2600

3000

2250

2250

41

EG5 * 4-350

2500

3500

2280

2280

42

EG5 * 5.2-350

2500

3500

2350

2350

43

EG5.5 * 5.2-365

2900

3300

2750

2750

44

EG2.25 * 1.8-390

3450

3300

2700

2200

45

EG5 * 4-390

3000

3500

2750

2750

46

EG5 * 4-400

3200

3500

2750

2750

47

EG5 * 4.2-420

3200

3800

2750

2750

48

EG3.8 * 3.6-480

4100

4100

3400

2700

49

EG4 * 3.8-480

3500

4200

2940

2940

50

EG3.5 * 3.7-500

3600

4200

3150

3150

51

EP19 * 19-105

950

950

780

750

52

EP13 * 13-135

1400

1400

1150

1150

53

EP14 * 13.5-145

1200

1200

1200

1200

54

EP13 * 13-150

1400

1400

1150

1150

55

EP8 * 8-210

2100

2100

1820

1820

56

EP11 * 11-230

2300

2300

1680

1680

57

EP9 * 8.8-250

2500

2500

2000

1900

58

EP8 * 8-260

2500

2500

1980

1980

59

EP11 * 11-260

2600

2600

2150

2150

60

EP16 * 15-272

2800

2650

2110

2150

61

EP8 * 7.6-275

2800

2650

2100

2100

62

EP9 * 8.4-275

2800

2700

2160

2160

63

EP9 * 8.8-280

3200

2500

2350

2050

64

EP11 * 10.2-280

2850

2650

2040

2040

65

EP9 * 9-300

3100

2900

2400

2300

66

EP12 * 11.5-310

3200

3050

2380

2470

67

EP8 * 8-330

3300

3300

2650

2650

68

EP11 * 10-330

3300

3000

2450

2350

69

EP8 * 7.6-370

3700

3500

2750

2750

70

EP7.5 * 7.2-388

3450

3350

2720

2850

71

EP8 * 7.9-420

4100

4100

3000

3000

72

EP13 * 13.5-420

3900

4100

3100

3400

73

EP7 * 7-430

3850

3850

2350

2350

74

EP8 * 8.4-520

3850

4000

3350

3350

Note: EG--no alkali, twisted;

EP-alkali-free, plain weave.


Due to the use of unique ingredients and surface treatment technology, Jiuding reinforced tablets have unparalleled high strength, which provides excellent guarantee for the quality of various grinding wheel products.

Resin cutting wheel

The resin cutting grinding wheel produced by using Jiuding high-strength reinforced sheet as the reinforced base material makes the product have good flatness, safety performance and bending resistance, small dust, no odor, and meet the environmental protection requirements. It also has excellent cutting life and cutting efficiency. It is widely used in cutting of metal and non-metal materials.

Resin drawing wheel

The resin-drawn grinding wheel produced by using Jiuding multi-layer high-strength reinforced sheet as the reinforced base material makes the product have excellent safety and wear resistance. This product can be widely used in the grinding process of machinery, automobile, shipbuilding, metallurgy, chemical industry, construction and other industries.


Selection guide

(1) Specification selection

The selection of reinforcement sheet specifications is mainly based on the type, shape and size, design linear speed and main application of the resin grinding wheel, and the appropriate organization structure, warp and weft density and gram weight are selected. It is generally designed by the technical staff of the grinding wheel manufacturer and determined after passing the rotary blast test.

(2) Resin selection

The resin selection of the reinforcing sheet mainly considers the bonding strength of the reinforcing sheet and the grinding wheel. Generally, phenolic resin is used. If the customer has special requirements for the resin, the company can conduct research and development of special resin according to the customer's requirements.

(3) Selection of coating

The selection of the coating compound of the reinforcing sheet mainly considers the requirements of the appearance of the grinding wheel, the production process equipment of the grinding wheel, etc. The optical mesh is generally used for the inner substrate of the grinding wheel, and the mesh coated with black paper and non-woven fabric is mainly used for the outer mesh of the grinding wheel .

(4) Color selection

The color selection of the reinforced film mainly considers the appearance requirements of different varieties of grinding wheels. The standard colors of the company's products are light yellow and black. Other special colors can be provided according to customer requirements.

(5) Other special requirements

Our company has a complete reinforcing sheet industry chain from fiberglass kiln drawing, textile, post-processing, and slicing. It also has the capabilities of fabric specification design, resin performance R & D, and post-processing process development. It has strong abrasives to enhance glass The comprehensive research and development capabilities of fiber substrate products, such as customers with special requirements on special abrasives, can provide special product design and manufacture.


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