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IMS surcon 3D Tube Surface Inspection System

Continuous inline surface inspection is crucial for the quality of the end product

Heiligenhaus, October 2020

In tube production, surface defects are often perpetuated through the complete process chain. Non-stop surface inspection from billet to finished tube is therefore critical for the quality of the final product.

A prerequisite for the economical and future-oriented production of pipes is specific knowledge of the production process. In particular these are the product properties after each of the typically three forming stages. Only through precise, reliable and durable measuring equipment can the ever-increasing demands on the finished product “tube” in terms of uniformity and adherence to low tolerance limits be met.  

Accordingly, the objectives are always the continuous recording and storage of all measured values, production parameters and system events, feedback of the measured values to the pre-control and / or tracking of the control equipment of the rolling units, support of the operator by targeted fault diagnosis and high availability of the measuring system.  

In the 3D surface inspection system “surcon 3D Tube”, IMS provides tube manufacturers with another high-quality inspection tool. The system enables you to detect surface defects at a much earlier stage of the rolling process than before and to counteract them early and effectively through precise corrective measures.   

In particular, the three-dimensional information on the spatial extent of the defects enables far more reliable decisions to be made on the extent to which a surface defect can still be tolerated or whether immediate intervention in the production process is necessary.  

In addition, 100% surface inspection ensures that immediate knowledge is available as to whether a detected defect occurs once, recurs several times on a tube or at the same length position from tube to tube – information that is almost impossible to determine reliably by manual inspection. Especially in tube production, surface defects are often perpetuated through the complete process chain. Non-stop surface inspection from bloom to finished tube is therefore critical for the quality of the final product. 

Advantages of surcon 3D Surface Inspection System: 

The exemplary types of defects shown here as examples for seamlessly rolled tubes are only a selection of concise samples of how they can be detected with the help of 3D surface inspection on finished tubes of different dimensions.   

Depending on the error type, the cause of the error can be determined as quickly as possible and a corresponding countermeasure can be taken, e.g. a change of roll stands if all the following tubes were rolled out with the same significant defects in the case of a roll breakage or bearing damage. 

Height profile of a defect in the form of a “shell”
Height profile of a defect in the form of “scale“
Height profile of a defect in the form of “impression”
Height profile of a defect in the form of “washout”
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