1. Tinplate Products
DONGBU STEEL CO., LTD

2. Key Characteristics
◈ Dongbu’s high technology allows for the cost-effective
production of high-quality tinplate products which are
available in a wide variety of coating weights, widths and
thickness.
◈ Dongbu’s tinplate products provides attractive surface
finish, excellent corrosion protection, high workability,
paintability, and printability.
◈ Dongbu is the sole Korean producer of double reduced
tinplate in Korea.

3. Primary Tinplate & Tin Free Steel Products
Key Characteristics
End-User Markets
Single Reduced
Tinplate
Excellent corrosion resistance
Beverage, Food,
General can
Double Reduced
Tinplate
Excellent corrosion resistance,
Very thin gauge
Beverage, Food
Single Reduced
Tin Free Steel (ECCS)
Excellent corrosion resistance,
Excellent lacquerability
Crown, General can
Double Reduced
Tin Free Steel (ECCS)
Excellent corrosion resistance,
Excellent lacquerability,
Very thin gauge
Beverage, Food

4. Dongbu’s Electrolytic Tinning Line (ETL)
Overview

5. The No.2 ETL in Asan bay works
Basic concept
Design
Export oriented location
Asan bay with own port
High productivity
Line speed : 600 mpm
Capa. : 200,000 Ton/year
Thin gage
Wide width
Thickness : Min 0.14 mm
Width : Max 1,220 mm
Insoluble anode system
Combination reflow system
2-Step process of ECCS
New technology

6. No. 2 ETL PROCESS TFS BYPASS LOOPER TFS Cr PLATING TENSION LEVELLER
N0. 1,2 TENSION REEL
LOOPER
NO. 1,2 PAY OFF REEL
WELDER
CLEANING
TENSION
LEVELLER
TFS Cr PLATING
TFS BYPASS
REFLOW
TP CHEMICAL
OILER
MAIN PULPIT
BOTTOM
INSPECTION
PLCKLING
TIN PLATING

7. Quality oriented new technology
A. Insoluble anode system in the tinplating
ㅇ Insoluble anode
ㅇ Edge mask
ㅇTin ion dissolution
unit
Features
ㅇ Better coating
weight profile
(Especially #10 coating
and less)
ㅇ Lower edge over
coating
Advantages
ㅇ High productivity
; Decrease of
welding trouble
in can making
Benefits
Anode
system
Edge-Mask
Strip
Tin Anode
Insoluble Anode
Insoluble anode
Soluble anode

8. B. Combination reflow system
ㅇ Conduction : 60%
ㅇ Induction : 40%
Features
ㅇSuperior control of
tin alloy layer
ㅇ Considerably
reduced arc spot
Advantages
ㅇAttractive surface
finish
Benefits
C. 2-step process of ECCS
ㅇ Each plating cell
for metal Cr and
Cr oxide
Features
ㅇMore accurate
control of
chrome oxide film
Advantages
ㅇLacquer adhesion
improvement
ㅇ Excellent film
adhesion for
laminated can
Benefits

9. Size Availability Line Capacity (1000Ton) Unit Thickness Width
Products
& Applications
Inchon
Works
No.1
180 mm
0.17 ~ 0.60
600 ~ 980
TP,TFS(Cr,Ni)
Asan Bay
Works
No.2
200 mm
0.14 ~ 0.60
600 ~ 1,220
TP,TFS(Cr,Ni)

10. Specification