conveyor belt

Conveyor Belt

Conveyor belt formula application---reducing costs and increasing efficiency

Recipe Application:

product


How to use

Results

type

part

Activated rubber powder A

Flame retardant

Covering rubber, middle layer

Partial replacement

NR/BR

. Flame retardant: meets MT/T668-2019 test standard . Physical properties: consistent with the original formula performance

Activated rubber powder B

Ordinary type, wear-resistant type,

General flame retardant

Covering rubber, middle layer

. Flame retardant: meet the corresponding customer needs . Physical properties: consistent with the original formula . Abrasion: excellent performance

Activated rubber powder C

General

Middle Layer

.Meet technical standards


Principle of adjusting the main ingredients of the formula:



Principle of cost reduction and efficiency improvement:

plan

WPS

A1

Purpose

Original recipe

Cost savings

Cost saving yuan/ton (quality cost)

0

-259

NR

35


BR9000

10

-5

12MPa reclaimed rubber

50

-10

Activated rubber powder A

0

+15

Reduce the amount of BR9000: the purpose is to reduce costs

Reduce the amount of recycled rubber: the purpose is to enhance the wear resistance and heat resistance of the formula


Recipe test results:

Verify the recipe:

Recipe Name

WPS

A1

Natural Rubber

35

35

BR9000

10

5

Activated rubber powder A


15

Recycled rubber 12MPa

50

40

Verification result: 150℃*30min

hardness

62

63

Tensile Strength

17.35

17.21

Elongation at break

536.55

495.66

100% fixed stretch

2.19

2.42

300% fixed stretch

7.89

9.06

density

1.136

1.147

DIN wear

149.2

142.6

Cost Savings:

Savings per ton/yuan

(Quality cost)

0

-259

Savings per ton/yuan

(Volume cost)

0

-230

Data analysis (activated rubber powder A: 15phr)

Hardness: The hardness is consistent with the original formula

Physical properties: The tensile stress has been improved; the tensile strength is consistent with the original formula; the elongation at break has been slightly reduced and is at the same level as the original formula;

Abrasion: Excellent abrasion performance.


Customer application feedback: Flame-retardant conveyor belt cover rubber

Raw materials

XT

XT-1

Natural Rubber

30

30

Butadiene rubber

35

35

SBR1502

35

35

Activated rubber powder A


10

Vulcanization conditions: 150℃*30min; 10MPa

hardness

65

64

TB/MPa

16.37

16.38

EB/%

474

468

300% fixed stretch

12.66

13.08

proportion

1.128

1.127

DIN wear

134.2

136.4

Flame retardant testing (MT/T668-2019)

With flame (flame duration): ≤3S

No flame: ≤1.5S

With flame (flame duration): ≤1S Without flame: No spark

Data analysis (activated rubber powder A: 10phr)

Hardness: The hardness is consistent with the original formula;

Physical properties: The tensile stress, tensile strength and elongation at break are consistent with the original formula;

Abrasion: Excellent abrasion performance;

Flame retardant effect: meets MT/T668-2019 testing standards.



Customer application feedback: High-strength conveyor belt cover rubber

Data analysis (activated rubber powder A: 20phr)

After using 20phr activated rubber powder A instead of 18phr N330 carbon black in the formula, the overall performance of the formula is maintained at the original formula level, and the wear performance is improved.


Customer feedback: The verification results of the D-grade steel wire rope core cover glue formula are good, and a long-term cooperation has been formed.

Recipe Verification:

Raw materials

BNT-0

BNT-1

BNT-2

BNT-3

BNT-4

BNT-5

BNT-6

Natural Rubber

80



-5

-10



Butadiene rubber

20





-5

-10

Activated rubber powder A/B


10

15

10

15

10

15

Verify the results


Consistency

Meet national standards

Consistency

Meet national standards

Consistency

Meet national standards

Note: BNT-0 is the D-grade rubber formula for steel wire rope core (D-grade tensile strength: ≥18Mpa)

Customer feedback: BNT-0 steel wire rope core D-grade cover rubber formula (TB≥18Mpa)

          Use 10 parts of activated rubber powder, the physical properties are consistent with the original formula;

          When using 15 parts, the physical properties decrease slightly, meeting the national standards.


Conveyor belt recycling


In conclusion

Through the above formula experiments and customer usage verification, Star activated rubber powder can reduce costs and increase efficiency in the conveyor belt application market with significant results.

Welcome to use it and work together to further develop the application market!

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