Introduction
Fired refractory products are able to not only resist large temperature extremes and chemical attack, but also change their shapes. As a matter of fact, refractory products are prone to bend or tilt during installation due to material shrinkage and differences in thermal expansion between the components. As a result, the quality of metallic accessories and peripheral components is essential for the entire fired refractory product assembly.
In recent years, with the development of industrial technology and the progress of science and technology, various types of high temperature resistant refractory products have emerged. However, bend or tilt in refractory products end faces is one of the common problems found in refractory products due to poor installation or assembly. If left unchecked, these problems can lead to uneven thermal expansion, causing the product to fail in high temperature environments. To ensure the safe and reliable operation of refractory products, it is necessary to ensure the quality of the end faces.
The purpose of this paper is to review the literature of inspection techniques and current technologies on bends or tilts of end faces in fired refractory products, and propose solutions and solutions to properly inspect the quality of the end faces.
Analysis of Common Inspection Techniques
The inspection of the bend and tilt of the end face of refractory product is very important. In the past, manual measurement was often used for visual inspection of the end faces. However, this method not only has low efficiency, but also cannot accurately control the quality of the end faces.
With the development of modern technology, many sophisticated tools have been introduced, such as vacuum instruments, microscope and theodolite, which can accurately measure the tilt, straightness, pitch, run-out and other parameters of the end faces.
These instruments are widely used for the inspection of end faces of refractory products due to their high accuracy, stable performance and portable characteristics. For example, a vacuum instrument uses a light sensitive material to produce corrugated images of the end face. The bent, tilt, etc. of the end face can be evaluated according to the outline of the end face on the corrugated images.
In addition, some advanced digital technologies, such as laser scanning or 3D scanning, are also used to produce a 3D consensus of the end face. By analyzing the 3D model of the end face, the deviation of the end face can be accurately measured, thus easily finding the bend and tilt of the end face.
Conclusion
In summary, the inspection of the bend and tilt of the end face of refractory product is very important for ensuring the safety and reliability of products in high temperature environments. Manual measurement is still widely used for end face inspection, but its efficiency and accuracy are very low. To improve the accuracy and efficiency of the inspection, modern tools and digital technologies can be used to measure the bend and tilt of the end face. In this paper, various common tools and technologies used for end face inspection are reviewed and discussed, and a solution to detect the tilt and bend of the end face is proposed. It can be seen that these solutions and techniques can effectively ensure the quality of the end faces of refractory products.
