The strip-shaped protrusions on the surface of the wire along the rolling direction are called ears, and there are single-sided ears and double-sided ears. Due to tension in the production of high-speed wire rod mills, it is difficult to avoid the occurrence of ears at both ends of the product.
Ears are likely to occur when the following conditions occur: (1) The rolling groove and guide plate are not installed correctly;
(2) The rolling temperature fluctuates greatly or is uneven, which affects the spread of the rolled piece;
(3) Defects in the billet, such as shrinkage cavities, segregation, delamination and foreign inclusions, affect the normal deformation of the rolled parts;
(4) The size of the incoming material is too large.
Prevention and elimination methods are as follows:
(1) Correctly install and adjust population guides;
(2) Improve the quality of billet heating and control the rolling temperature;
(3) Reasonably adjust the tension;
(4) Control the size of incoming materials.
Link to this article：Causes and elimination methods of wire ears
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:Alloy Wiki，thanks！^^
