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2021.02.05

How to avoid the problem of unqualified steel quality of steel structure space frame

How to avoid the problem of unqualified steel quality of steel structure space frame

In the process of steel space frame construction, it is very important to purchase steel, Because the quality of steel directly affects the quality of construction projects, it is necessary to take preventive measures against unqualified steel quality.

Reasons for the quality problems of steel structure space frame steel:

1) Failure to follow normal standards during the purchase process. If the quality of the dealer’s products is not reviewed, steel products and steel castings will be purchased in large quantities.

2) The mechanical properties and chemical composition of the selected steel do not meet the requirements, or a forged certificate is a low-quality product.

3) The purchased steel does not have a quality specification, which means that there is the ability of inferior steel.

4) Quality problems occur during the transportation of steel.

 

Preventive measures for quality problems of steel structure space frame

 

  • In the process of purchasing steel products, a large number of purchases can be made only after the dealer’s products are qualified
  • There is a match between the selected steel and the welding process. Pay attention to the problem of laminar tearing of the steel when purchasing.
  • The steel should be protected during product transportation to avoid welding consumables.

4) Stacking should be carried out in batches to prevent serious corrosion of steel, which directly affects the quality of steel, and sampling must be carried out in accordance with relevant standards.

5) Strictly purchase steel materials in accordance with the acceptance criteria. The steel materials you choose must have proof materials and meet the design standards.

6) Pay attention to setting the chemical composition and mechanical composition during the purchase of the space frame steel, and test the processing technology if necessary to see if the product meets the qualified standard.