Rolling

Rolling Mill

Quality control during manufacturing / Control of size accuracy

With respect to size precision, high size precision (precision rolled steel, super precision rolled steel) far beyond the JIS standard and AISI bar tolerance can be guaranteed by carrying out the following:

1.Precise temperature control and uniform heating with state-of-the-art heating furnaces
2.High rigidity by using large-sized rolling mills
3.Design and control of pass schedule specifically for precision rolling
4.Improvement of size precision by using a tensionless rolling mill system
5.Total length assurance by using automatic size measuring machines

In the field where materials that had undergone peeling and drawing processes were used, cost reductions can be achieved by eliminating these processes.

Control of dimensional precision

Control of size precision

Control of straightness (steel bar)

Automatic rake type cooling bed offers excellent straightness even after being rolled.

Automatic rake type cooling bed

Control of decarburization

Temperature control (low temperature and uniform heating) of the heating furnace enables the manufacture of products with less decarburization, leading to the elimination of peeling and centerless grinding processes required for decarburization layer removal.

Structure control

Temperature control during rolling by using the heating furnace, intermediate water boxes, product water boxes and the like allows the elimination of heat treatment processes such as the normalization and hardening of products.

Structure control

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