How to ensure that the steel structure coating does not go wrong

Steel construction has penetrated into our lives. At present, many large buildings in China are made of steel. In the process of building steel structure, fire is very important, but in the production process, steel structure is fire. After coating, sometimes there will be delamination or tapping found that the surface is hollow, and some even surface has obvious depression, uneven appearance. If this phenomenon occurs, the steel structure brand will be reworked, but what is the cause of this phenomenon and how to deal with it?

Steel structure brands first analyze the reasons: the coating is too thick, the surface has been dry and solidified, but the inside is still solidified, which is like a sweet egg; Thick coating is not dry, can not be coated with a coating, brush coating; In addition, fireproof coating construction environment temperature is too high, resulting in rapid curing surface cracking. Another reason may be less attention, because sometimes the temperature of the site is not artificially controlled, so after the completion of the construction must be carefully checked.

When the steel structure brand in the steel structure members found this situation, need to find its preventive measures: should be mixed according to the requirements of the fire coating product manual, and according to the prescribed thickness of the coating according to the steel construction process; The new coating should be carried out after the coating interval of the thick coating; During high temperature construction in summer, the coating construction of steel structure brand should avoid exposure to the sun, and pay attention to the maintenance of steel structure members; The coating whose local crack width is larger than the acceptance test specification should be repaired; Coating cracks can be treated by using air tools or manual tools to layer the cracks and surrounding coating away to repair the coating.

Of course, if these problems are noticed before construction, the steel structure brand can prevent painting problems in advance and try to avoid the influence of painting problems on the whole steel structure project in the construction work.