Anti-corrosion hollow piston rod
The utility model discloses an anti-corrosion hollow piston rod which comprises a supporting pipe, the outer surface and the inner surface of the supporting pipe are both fixedly connected with first anti-corrosion layers, and the outer surface and the inner surface of each first anti-corrosion laye...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses an anti-corrosion hollow piston rod which comprises a supporting pipe, the outer surface and the inner surface of the supporting pipe are both fixedly connected with first anti-corrosion layers, and the outer surface and the inner surface of each first anti-corrosion layer are both fixedly connected with second anti-corrosion layers. The outer surface and the inner surface of the second corrosion-resistant layer are fixedly connected with third corrosion-resistant layers, the outer surfaces and the inner surfaces of the third corrosion-resistant layers are provided with zinc coatings, the supporting pipe is formed by cutting a carbon steel pipe, and the first corrosion-resistant layer is formed by cutting a stainless steel pipe. The first corrosion-resistant layer, the second corrosion-resistant layer, the third corrosion-resistant layer and the zinc-plating layer are adopted to perform multi-stage protection on the supporting pipe, so that the corrosion resistance of the device is |
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