Preventing Metal Parts From Corrosion
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Preventing Metal Parts From Corrosion

By Manufacturing Technology Insights | Monday, November 25, 2019

Metal WorkingCoatings can offer a layer of protection alongside corrosion by acting as a physical barrier between the oxidizing elements and metal parts in the environment. One standard process is galvanization, in which makers coat the piece with a thin layer of zinc.

FREMONT, CA: No metal is entirely safe from the peril of corrosion. But one can reduce, manage, or prevent corrosion before it causes a problem.

There are practical methods to prevent corrosion in metal parts. Manufacturers can apply protective corrosion barriers, while engineers, on the other hand, can incorporate corrosion control into the design process. Lastly, the people who use the components can take preventive steps to lengthen its life.

Ways to Prevent Corrosion of Metal Parts 

Preventing corrosion in metal parts takes reflection at all stages in the process, from design, manufacturing to finishing, and maintenance.

1. Design                                                              

Corrosion control starts at the engineering stage. If the component is for use in an atmosphere where it is susceptible to corrosion, manufacturers ought to design the part with that in mind. To decrease crevice corrosion, designers should remove narrow gaps that let fluid or air to enter and become stagnant. For corrosive surroundings like in saltwater, it may be wise to engineer for a degree of corrosion allowance.

Metal Working

2. Protective Coating

 

Coatings can offer a layer of protection alongside corrosion by acting as a physical barrier between the oxidizing elements and metal parts in the environment. One standard process is galvanization, in which makers coat the piece with a thin layer of zinc.

Additionally, powder coatings are another efficient way to prevent corrosion in metal components. With proper relevance, a powder coating can seal the surface of the part away from the setting to guard against oxidization.

3. Environmental Control

Many environmental aspects impact the probability of corrosion. It helps when the metal parts are stored in a clean and dry place when not in use. If one intends to store them for a long time, they can consider using methods to control the level of oxygen, sulfur, or chloride in the environment. 

Galvanic corrosion happens when metal parts with two different electrode potentials come in contact with an electrolyte like saltwater. The process causes the metal with high electrode activity to corrode at the point of contact. So, one can prevent galvanic corrosion by storing the parts separately, and the effect can also work as an anti-corrosion measure.

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