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This belt is suitable for the working conditions contacting with acid-alkali, such as manufacturing phosphate fertilizer, making sea salt. We use a rubber-plastic mixture as belt cover and added with inert materials of nice acid-alkali resistance. Belt carcasses are made of EP canvas which has more reliable acid-alkali resistance than cotton canvas. We often produce endless belt of this type.
Rubber Cover Properties:
Item | Tensile strength/Mpa≥ | Breaking elongation/%≥ | Abrasion loss/mm3≤ | Hardness/（o）±105 |
Before ageing | 14.0 | 400 | 250 | 60 |
After ageing | 12.0 | 340 | - | 65 |
Note：When any cover thickness is 0.8mm-1.6mm, sample thickness can be the maximum cutting thickness. At the moment, Tensile strength and Breaking elongation can be allowed 15% lower than the values in this table. | ||||
Acid-alkali Resistant Properties of Rubber Cover:
Class | Soak liquid | Concentration | Soak conditions | Change rate of properties before and after soaking | |
Volume expansion rate | Change rate of tensile strength | ||||
A1 | Hydrochloric acid(HCl) | 18% | 50℃×96h | ≤+10% | ≥-10% |
A2 | Sulfuric acid(H2SO4) | 50% | 50℃×96h | ≤+10% | ≥-10% |
A3 | Sodium hydroxide(NaOH) | 48% | 50℃×96h | ≤+10% | ≥-10% |
Telephone：86-13373390777 86-13373390777
Fax： 0319-4388866