The cause of cracks in stainless steel seamless elbows is analyzed by Licheng Steel Industry!
Wenzhou Licheng Steel Industry Co., Ltd. is a modern enterprise specializing in stainless steel pipes, pipe fittings and flange products. We have professional technical strength and advanced team management capabilities. Grades include: 304.304L.304H.321.321H.316.316L.317L.310S.347H etc. Pipe size range (6mm-580mm) * outer diameter (2mm-40mm) WT * 4000-15000mm) length.
1. [Raw material reason] The raw materials of stainless steel seamless elbows are of poor quality, and the tube blanks will have internal and external warping, scarring and cracks.
2. [Temperature reason] There is a heating process in the production of stainless steel seamless elbows, so if the heating is not good, that is, the temperature is not enough, the heating is uneven, etc., it will cause the inner warping of the steel pipe and so on.
3. [Equipment reason] From the time the stainless steel seamless elbow comes out of the furnace, each equipment part will affect the final quality of the pipe, such as warped skin and pits caused by equipment parts being scratched, and poor entry into the piercer, resulting in difficulty in biting the head of the pipe billet due to water drenching Or warped skin inside the head.
4. [Process reason] Process problems are divided into adjustment problems, equipment failure problems, and pipe quality problems caused by wear and tear of process components.