FIELD: process engineering.
SUBSTANCE: invention relates to nondestructive examination and can be used in slab control for hot-rolled strip production. Signals are processed and obtained data is used to define chances of further use of slabs in production of hot-rolled strip. Note that cold slab is used for control purposes. Acoustic emission pickups are mounted on slab surface in the order that allows the control over slab material and determination of signal source coordinates. Slab is trained by its weight to 20%-80% of slab material yield stress and held at load for at least 1 min. Obtained signals are processed by computer to allow defining changes in material structure and chances of defect development in said zone in production of hot-rolled strip.
EFFECT: higher efficiency and accuracy.
| Title | Year | Author | Number |
|---|---|---|---|
| FLAW CONTROL OF SLABS FOR PRODUCTION OF HOT-ROLLED STRIP | 2012 |
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