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Steel Pretreatment of Inner Tank of Enamel Water Heater

Steel Pretreatment of Inner Tank of Enamel Water Heater

  • Categories:Company news
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  • Time of issue:2021-11-05
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(Summary description)The anti-corrosion performance of the inner tank of the enamel water heater is one of the most important indicators.

Steel Pretreatment of Inner Tank of Enamel Water Heater

(Summary description)The anti-corrosion performance of the inner tank of the enamel water heater is one of the most important indicators.

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2021-11-05
  • Views:0
Information

The anti-corrosion performance of the inner tank of the enamel water heater is one of the most important indicators. In order to achieve the purpose of anti-corrosion of the enamel inner tank, the porcelain layer must be close and free of voids. The enamel layer fired from the enamel frit has a strong adhesion to the underlying steel. sex. To this end, the steel must be cleaned and pretreated.

There are two kinds of steel plate pretreatment methods: chemical method and physical method.

 

Most manufacturers that choose the physical method use sandblasting. Sandblasting can not only clean the surface, but also make the surface rough, which is beneficial to increase the adhesion between the ceramic layer and the steel surface. The factors that need to be considered when choosing the sandblasting method are surface contamination. Spots, surface roughness, and economy.

 

Chemical cleaning usually adopts pickling method. For steel, it is usually cleaned with sulfuric acid. For bisexual metals, it is usually cleaned with alkaline solution. After pickling, the steel must be washed with clean water to remove the remaining acid solution.

 

Which of these two methods is better depends entirely on the economics of the operation and other process factors, but both methods can produce a surface suitable for enamelling.

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湘ICP备17005568号-1      www.300.cn