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Acid and alkali resistant conveyor belt

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Purpose:

Acid and alkali resistant conveyor belt is suitable for chemical plant, chemical fertilizer plant, paper mill and other enterprises to transport bulk, granular and powder materials or finished articles containing acid or alkali.


Structure:

Acid and alkali resistant conveyor belt is made of multi-layer impregnated nylon canvas and EP canvas as framework material, covered with acid and alkali resistant covering rubber, and manufactured through calendering, molding, curing and other processes.


Features:

This product has good chemical corrosion resistance, good physical properties, acid and alkali resistance, wear resistance and other characteristics

·Executive standard: Hg / t3782-2015 acid and alkali resistant conveyor belt


Main technical indicators:

Project

Type

NN、EP

Adhesion strength

Overlay and

Between cores

Thickness of covering layer > 1.5mm / ≥ n / mm

3.5

Thickness of covering layer: 0.8-1.5mm / ≥ n / mm

3.2

Between layers ≥ n / mm

4.5

Longitudinal full thickness tensile strength value of belt / N / mm

160 ~ 3150

Elongation of full thickness longitudinal reference force of belt /% ≤

4

Coating performance

hardness

Performance before aging / degree

55-70

Performance / degree after aging

75-85

Breaking strength

Performance before aging / MPa ≥

15.0

Performance after aging / MPa ≥

12.0

Elongation at break

Performance before aging /% ≥

400

Performance after aging /% ≥

200

Wear amount / mm3 ≤

200

Test conditions: ozone concentration (50 ± 5) × 10-8 (volume fraction), temperature (40 ± 2) ℃, elongation (20 ± 2)%, time 15 h, ozone aging test results shall be free of cracks.

Immersion solution: 18% hydrochloric acid (HCl), 50% sulfuric acid (H2SO4), 48% sodium hydroxide (NaOH) immersion conditions: temperature × time 50 ℃ × 96h

Volume expansion rate before and after immersion + 10%.


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