How to Anticorrosion for Metal Bellows? What Factors to Consider in Anticorrosion?

Firstly, the outer side of the steel corrugated pipe culvert is primarily subjected to soil corrosion, while the inner side is mainly affected by water corrosion and atmospheric corrosion, with the focus on protecting against soil and water corrosion.

In the design phase, when selecting materials, it is essential to fully consider the material, data, and corrosion characteristics in the specific medium, and to make full use of effective work experience and procedures.

Three, anti-corrosion design should adhere to the principle of combining prevention with protection. According to the corrosion conditions of the medium produced during the production process, environmental conditions, production operation management levels, and construction and maintenance conditions, adapt to local conditions, differentiate treatment, and comprehensively select anti-corrosion measures. Threatens personal safety

Irreparable parts, as well as critical bearing structures and components, should be protected.

Four, fully understand the corrosion environment conditions, including:

(1) Chemical Factors: Medium composition (including impurities), acidity/alkalinity, oxygen content, possible chemical reactions, etc.

(2) Physical Factors: Medium temperature, flow rate, heating and cooling conditions, type and magnitude of stress, etc. Special attention should be paid to high temperature, low temperature, high pressure, vacuum, impact load, alternating stress, and other environmental conditions.

In the design of anti-corrosion structures, it is also essential to consider whether the shapes of the structures and components, as well as their combinations, meet the anti-corrosion requirements, particularly the prevention of various localized corruptions.

Five, when considering the corrosion impact of steel corrugated pipe culverts, it should be taken into account from aspects such as material selection and structural design, specifically focusing on the following two aspects:

(1) Select structural materials, anti-corrosion methods, and service life appropriately, and handle the relationship with engineering economics.

(2) Considering damage or corrosion prevention measures during installation, fully take into account the fatigue limit under the combined action of stress and corrosion, and thoroughly consider the stress loss caused by corrosion at the connection points.