You are here:HOME >> News >> Industry news

News

News

News

Problems in the development of cold roll forming steel

Problems in the development of cold roll forming steel

It has been over 10 years since the application of cold roll forming steel in China railway freight, but it cannot compare to Russia, the United States and other countries in quantity. There are some problems in the cold roll forming steel manufacturing process and product loading using: one is that cold roll forming steel as a finished product has greater internal stress. In the process of cold roll forming, the processing method of this machine is using the mechanical force to deform the raw material, and it is bound to have a great internal stress.



The second is that the pre-loading treatment causes the cold roll forming section to produce a large deformation. In addition to the rust and passivation, the internal stress was also released, causing the rolling and torsional deformation. The third is that although China‘s development of weather resistant steel is good for its mechanical properties, corrosion resistance and weldability, its stamping performance is not as good as ordinary carbon steel. Fourth, it is necessary to improve the technical condition of the new type of cold bending section as soon as possible.

Application of cold roll forming section steel railway wagon in China has just started, and learning from the foreign truck development direction of railway industry, the cold roll forming section steel has a long way to go in Chinese railway vehicle, although there are many problems, such as the urgent improvement of production technology and the lack of relevant industry standards. Experts suggested that as the manufacturer of cold roll forming steel factory should be strengthen the mutual communication with the truck manufactures, so as to better promote the wide application of cold roll forming steel on the truck; It can also make the railway truck structure more rationally optimized, so that the whole machine performance of the truck products could be improved.

 

Related Products

Online Now #
  • +86-137 0285 5825 
  • sales@kingreal.org
  • jet-clima jet-clima
  • 952688242Sales