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Description

Acid and alkali resistant conveyor belts are suitable for working environments that are in contact with acids and alkalis, such as phosphate fertilizer manufacturing and seawater salting. The cover rubber adopts rubber-plastic co-mingled and filled with inert materials with excellent acid and alkali resistance, which has better performance than neoprene acid and alkali resistant conveyor belt. The skeleton material adopts EP canvas, which is more reliable than cotton canvas core belt in terms of acid and alkali resistance. Generally it is made into ring shape.

Acid and alkali resistance of the cover layer

Form	Immersion solution	Immersion solution	Soaking conditions Temperature x time	Performance change rate before and after immersion
Form	Immersion solution	Immersion solution	Soaking conditions Temperature x time	Volume expansion	Strength change rate
A1	Hydrochloric acid (HCI)	18%	50°Cx 96	+10% or less	-Up to 10%
A2	Sulfuric acid (H₂SO₄)	50%	50°Cx 96	+10% or less	-Up to 10%
A3	Sodium hydroxide (N_aOH)	48%	50°Cx 96	+10% or less	-Up to 10%

Performances

Item	Tensile strength/MPa≥	Elongation at break %≥	Abrasion/mm3≤	Hardness/(0)⁺¹⁰_-5
Performance before aging	14.0	400	250	60
Performance after aging	12.0	340	-	65

Company Profile

Baoding Wanjia Conveying Machinery Manufacturing Co., Ltd. is a professional enterprise producing various kinds of conveyor belts, conveying machinery and accessories. Since its establishment, the company has always adhered to the business philosophy of developing enterprises based on science and technology, emphasizing quality management, pursuing good faith management and creating famous brand products. High-quality scientific and technological management team, advanced production equipment, complete testing methods, strict quality control system to ensure the production of high-quality, efficient products. The company is based on the domestic market, closely with the international norms. The company has been awarded “Certificate of Adoption of International Standards” issued by Hebei Provincial Bureau of Technical Supervision and “Certificate of Product Conformity” issued by Hebei Provincial Product Quality Supervision and Inspection Institute, and passed ISO9001 International Quality System Certification in 2005. The ordinary, high-temperature resistant and whole-core flame retardant conveyor belts produced by the company have been sold well all over the country and exported to Southeast Asian countries with their good product quality and considerate after-sales service. The products are widely used in coal, metallurgy, harbor, electric power, building materials and other production fields.