Heat Treatment｜TOKUSHU KINZOKU EXCEL CO.,LTD.

Equipment Overview

Heat treatment is performed to recover the metal structure changed by cold rolling (plastic deformation) and to remove residual stress and strain.
We use either a bell-type furnaces for heat treating coiled materials or continuous furnaces for heat treating non-coiled materials, depending on the material and purpose.

Changes in metallurgical structure and mechanical properties caused by plastic deformation and annealing

Annealing Furnace(BELL Type)

Features of TOKKIN

We control the internal structure of metals with our proprietary cold rolling and heat treatment know-how that we have cultivated over many years.

By controlling the metallurgical structure, workability, strength, and ductility can be adjusted.

Cold rolled carbon steels : Raw material(Hot rolled) vs. TOKKIN(Cold rolled)
- b) Thickness distribution
Austenitic Stainless Steels : Nomal Grain vs. nanoSUS(Ultra fine grain)
- a) Metal Structure
- b) Surface Comparizon after Bending

Equipment List

Type/Method	Temperature	Atmosphere Gas	Remarks
Annealing Furnace BELL Type/Electric heating	～　 760℃	H₂/N₂	2Bell-4Base
Annealing Furnace BELL Type/Electric heating	～　700℃	H₂/N₂	1Bell-1Base
Bright Annealing Continuous furnaces	～　1150℃	H₂/N₂	Manufacturing Range： t0.030 ～ 1.00mm ×ｗ340mmMAX t0.200 ～ 2.20mm ×ｗ340mmMAX
Bright Annealing Continuous furnaces	～　 850℃	H₂/N₂	Manufacturing Range： t0.040 ～ 1.70mm ×ｗ130mmMAX

Type/Method	Temperature	Atmosphere Gas	Remarks
Tension Annealing Continuous furnaces	～　 550℃	N₂	Manufacturing Range： t0.030 ～ 0.70mm ×ｗ340mmMAX

Manufacturing Technique

Equipment Overview

Features of TOKKIN

a) Carbide Structure

b) Thickness distribution

a) Metal Structure

b) Surface Comparizon after Bending

Equipment List

We welcome your questions and inquiries regarding materials.