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Marine side plate capable of resisting seawater corrosion and ocean environment corrosion

A marine environment and seawater-resistant technology, which is applied to the hull, hull, and hull parts, etc., can solve the problems of poor corrosion resistance, low service life, and bubbles of marine side plates

Inactive Publication Date: 2014-02-05
MAANSHAN XINGLONG FOUNDRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regardless of whether it is cast zinc-aluminum coating on the surface of marine equipment structural steel or gray cast iron marine side plate coating anti-corrosion, the surface of marine side plate is peeled, bubbled and corroded seriously in marine environment. Generally speaking, the quality of marine side plate Defects such as poor corrosion resistance, low service life and poor reliability

Method used

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  • Marine side plate capable of resisting seawater corrosion and ocean environment corrosion

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Effect test

Embodiment 1

[0012] The preparation method of the marine side plate is as follows: firstly make the lost foam model and reserve the coating margin of the cast-infiltrated layer on the lost mold, and apply the paint forming the cast-infiltrated layer on the reserved margin of the foam model by 3-5mm , and then brush the special lost foam refractory coating and put it into the oven to dry. The refractory coating is a commonly used water-based coating, and the thickness of the coating is 0.5mm. Then assemble the model coated with refractory paint into a model, place the pouring riser, put it into the sand box, fill it with dry sand, and vibrate on the three-dimensional vibrating table to make the sand mold compact. Put the compact sand box with built-in foam model on the casting station, cover the surface with plastic film, and turn on the vacuum pump to make the vacuum degree about 0.05MPa. The molten metal is poured into the mold, and the casting temperature is increased by 30°C on the ...

Embodiment 2

[0015] The preparation method of the marine side plate is as follows: firstly make a lost foam model and reserve the coating margin of the cast-infiltrated layer on the lost mold, and apply the coating that was cast to form the cast-infiltrated layer on the reserved margin of the foam model. Measure 3-5mm, and then brush the special lost foam refractory coating and then dry it in the oven. The refractory coating is a commonly used water-based coating, and the thickness of the coating is 0.4mm. Then assemble the model coated with refractory paint into a model, place the pouring riser, put it into the sand box, fill it with dry sand, and vibrate on the three-dimensional vibrating table to make the sand mold compact. Put the compact sand box with built-in foam model on the casting station, cover the surface with plastic film, and turn on the vacuum pump to make the vacuum degree about 0.05MPa. The molten metal is poured into the mold, and the casting temperature is increased ...

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Abstract

The invention discloses a marine side plate capable of resisting seawater corrosion and ocean environment corrosion, comprising a gray pig iron base body and a high-aluminum bronze based ceramic compound casting layer which is compounded on the outer surface of the gray pig iron base body and is capable of resisting the seawater corrosion. SiC ceramic in the compound layer on the surface of the corrosion-resisting marine side plate disclosed by the invention is uniformly distributed and the volume fraction is controllable; the compound casting layer is combined with the gray pig iron base body in a smelting manner and the casting layer is not cracked or damaged; and the corrosion resistance of the marine side plate disclosed by the invention is more than three times as much as that of a common antiseptic gray pig iron marine side plate which is coated by paint.

Description

technical field [0001] The invention relates to the field of marine side panels, in particular to a marine side panel resistant to seawater corrosion and marine environment corrosion. Background technique [0002] Corrosion of equipment steel structures in marine climate environments, especially in harsh conditions such as seawater, high temperature, high humidity, high smog, and high sunshine, has become increasingly prominent, and damage caused by corrosion occurs from time to time. The use of zinc-aluminum alloy anti-corrosion cast-infiltration layer is one of the effective methods for corrosion protection of steel structures. In practical applications, the zinc-aluminum cast-infiltration layer must be sealed with synthetic coatings to prevent corrosion in the gaps connected with the steel substrate. . At the same time, this type of cast-infiltrated layer system is particularly sensitive to pitting corrosion and mechanical damage, which makes the anti-corrosion cast-in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16B63B3/16
Inventor 张家俊李伟东周发明陈志浩
Owner MAANSHAN XINGLONG FOUNDRY CO LTD
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