Featured Articles

How to Fix and Prevent Roof Leakage in Light Steel Structures

-
图片
Roof leakage is one of the most common problems in light steel workshops and warehouses. It not only affects daily use but also causes internal corrosion, shortens the building’s service life, and leads to higher maintenance costs. Most leakage happens at panel joints, screw holes, flashing areas, or around openings. The main reasons are poor waterproof treatment, aging sealant, loose screws, or improper installation. To fix existing leaks, first clean the surface and locate the leakage points. Replace damaged or aging sealing strips. Re-tighten loose screws or replace them with waterproof self-drilling screws. Apply professional waterproof sealant at joints and openings. For serious cases, add a layer of waterproof coating to improve protection. To prevent future leakage, use high-quality roof panels and waterproof materials from the beginning. Ensure professional installation with standard flashing and sealing design. Conduct regular inspections, especially before rainy seasons, and ...
发表评论

Reasons and prevention of corrosion in space frame engineering

-

 As most of the space frame project adopts steel structure material, due to the influence of coating and natural environment, it is very easy to appear rust and corrosion. The following explains how to do a good job in the construction of large-scale network frame project anti-corrosion measures.

 First, the influence of large-scale network frame project corrosion causes

First of all is the space frame project coating aging problem, no matter what kind of material are basically aging characteristics, and this anti-corrosion coatings are no exception, but also the aging of this coating makes the steel structure anticorrosion coating failure, which makes the rust affects the life.

In addition, there is a natural environment factor around the space frame project, if the air around the steel structure plant is humid, then it will make the steel structure rust gradually under the erosion of water and air.

In addition, if the surrounding environment is more polluted, in which the polluted atmosphere has sulfide, nitride, carbide and other corrosive and harmful components content, etc., then it will also affect the service life of the steel structure plant.

Therefore, for the maintenance of portal steel frame project, need to always pay attention to, it is best to plating a layer of film, at the same time after a period of time to anticorrosive paint coating, make it can be used for a long time.



 Second, the anti-corrosion measures of large-scale space frame project

1, surface treatment: the surface treatment of steel structure is very important, the same kind of paint, the same kind of corrosive environment, the use of different construction techniques life can be extended three times to five times. The dirt and rust layer on the surface of steel should be removed, especially the black oxide skin formed when rolling steel, which is the cathode of electrochemical corrosion and the root cause of corrosion, and must be removed. The quality of surface treatment should reach Sa2.5 level of steel surface pretreatment specification before painting.

2, material selection: surface painting special steel structure anticorrosion paint is still the main means of steel structure anticorrosion and space frame anticorrosion at present. Anti-corrosion paint for steel structure can be divided into primer, middle paint and top coat according to the protection function, each layer of paint has its own characteristics, each has its own responsibility, and several layers are combined to form a composite coating, which improves the anticorrosion performance and prolongs the service life.

3, coating thickness: paint is an intermediate material for anti-corrosion, must be painted to form a coating. If the coating thickness is uneven, the steel surface burrs or anchor spinning peak will reveal the coating. If the coating construction traverses less, the coating has pinholes, the oxygen in the water, chloride ions, water molecules, etc. will pass through these weak places, so that the steel rust corrosion. Corrosion products volume expansion, the formation of rust package, gradually expand, and finally the coating blistering off.

评论

发表评论

此博客中的热门博文

What is a coal bunker?

-
图片
Coal bunker , is a structure used for storing coal. Coal bunkers play an important role in thermal power plants, coal mines and coal marshalling stations. Depending on the specific application scenario and design, there are various types of coal bunkers, such as circular coal bunkers, square coal bunkers and open coal yards. Safety Management of coal bunkers Preventing spontaneous combustion of coal: Since coal itself contains certain moisture and volatile substances, long-term exposure to the air may lead to spontaneous combustion, so the safe management of coal bunkers is of great significance in preventing spontaneous combustion of coal. Ensure the quality of coal: coal in the coal bunker usually needs to be stored for a long time, if not managed properly, it may lead to the decline in the quality of coal, such as sulphurisation, weathering and other phenomena, so it is necessary to ensure the quality of coal by strengthening the safety management of the coal bunker. Improve the eco...
阅读全文

What is the difference between a single-layer reticulated shell and a double-layerreticulated shell?

-
图片
  The differences between single-layer reticulated shells and double-layer reticulated shells are as follows: Structural Configuration   Single-layer reticulated shell: Composed of a single layer of members, with the members directly connected to form a grid structure . The node configuration is relatively simple, typically employing rigid connections that allow the members to bear not only axial forces but also bending moments and shear forces.   Double-layer reticulated shell: Consists of upper and lower parallel layers of members connected by web members, forming a truss-like structural system. The nodes are generally hinged, and the members primarily bear axial forces. Its configuration is relatively complex, requiring more members and nodes to ensure structural stability and load-bearing capacity. Structure Single-layer mesh shell: composed of one layer of rods, the rods are directly connected to form a mesh structure, the node structure is relatively simple, usually...
阅读全文

Structural Steel Bolting Balls: Connecting the Future, Securing the Cornerstone

-
图片
In the field of steel structure , bolted ball, as an innovative choice of connecting node, is gradually becoming the preferred solution in modern buildings and industrial facilities due to its advantages of easy installation, removable and reorganisable, and low maintenance cost. Compared with traditional welded balls, bolted balls not only simplify the construction process and improve efficiency, but also give the structure greater flexibility and sustainability, which is an indispensable and important component in modern steel structure projects. The core concept of the bolted ball connection technology is to use high-strength bolts to closely connect the components to form a stable and reliable node structure. Compared with welded ball, bolted ball connection does not require on-site welding and avoids thermal stress, deformation and weld quality problems that may arise during the welding process, thus improving the overall stability and safety of the structure. In addition, the bo...
阅读全文