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hot-sale product: 20Cr precision steel pipe | 45 ? precision steel pipe | Q345B precision tube | 42CrMo precision steel pipe | 20CrMnTi precision steel pipe | 35CrMo precision steel pipe | GCr15 precision tube | 40Cr precision steel pipe | 16Mn precision steel pipe | 20 กม 10 precision steel pipe | 40Cr precision steel pipe | Large diameter precision steel pipe |
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Liaocheng Henghui precision tube factory ?
Contact person: Manager Zou
Mobile phone: 13561450133
Tel: 0635-8882797
website: bungalow12302.com
Address: Industrial Park, Liaocheng Economic Development Zone, Shandong Province

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Problems of cold rolled tube in Liaocheng Q345B precision bright tube factory
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? ? Liaocheng Q345B precision bright tube factory cold-rolled pipe is widely used in industry, but there are often problems in the production process. In order to ensure the quality of products, we should pay attention to some easy problems and reasons in the production, so as to reduce the inferior products and reduce the cost. The problems and causes in the production process of cold-rolled pipe are as follows.
? ? Liaocheng Q345B precision bright tube factory cold-rolled tube problems: the surface of the tube transverse scratch: generally due to the roll opening is not smooth or edge wear and roughening; If the position of the Maltese plate is not adjusted correctly, the steel pipe will be rotated and fed at the moment when the rolling groove or roller has not left the pipe surface.
? ? ? Liaocheng Q345B precision bright tube factory cold-rolled pipe problems: the surface of the longitudinal scratch: generally due to the roll opening is too small, rotation is not flexible, resulting in roller drag on the surface of the tube; The slope of the reverse section of the slide is not enough; The selected roll is too small or the tube blank is too large.
? ? Liaocheng Q345B precision bright tube factory cold-rolled pipe easy to appear problems: pipe end cracking: generally due to the radial tension exceeds the strength limit of the tube; There are microcracks at the end of the tube billet, and the cracks expand during rolling; When the tensile stress exceeds the strength limit of the pipe, it will crack; The wall thickness of tube blank is seriously uneven, and the deformation at the thickness is large, which leads to cracking; If the surface reduction rate is too large, the pipe can reach the limit of work hardening.
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Home page About us Product display News and information technical knowledge marketing network Customer message contact us
Precision steel pipe | precision bright steel pipe - Liaocheng Henghui precision pipe factory ? Contact person: Manager Zou ? Mobile phone: 13561450133
Tel: 0635-8882797 ? Fax: 0635-2122228 website: bungalow12302.com Address: Industrial Park, Liaocheng Economic Development Zone, Shandong Province Administration
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