Tinplates & TFS
Even since its introduction as a packing material for the proceed foods, tinplate has plays an important role in packing industry for over 100 years. Today, various kind of packing materials have been developed and commercialized. However, with an attractive surface finish, excellent corrosion resistance, workability, solderability, printability and paintability, tinplate is still the main stream of food packing materials and popular in numerous applications such as motor oil cans, electric parts, dry cells, stations, toys, etc.
Realizing the potential tinplate enjoys in the packing industry, we diversified into this field, and a computerized, fully automated electrolytic tinning line, planned and built by JFE Steel Corp. on a turnkey basis, was commissioned in 1986. The line employs the Halogen Continuous Electrolytic process which is famous not only for its ability to guarantee the uniformity of tin coating weight but also its ability to run the ultra thin or high temper black plate; besides it is simple to maintain.
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Manufacturing Process
We operate the Halogen continuous electric tinning line through a fully computerized control system for non-stop manufacturing which even changes cutting size and selects current chemical treatment, temperature and line speed, besides it automatically inspects and adjusts for malfunction. It's a high-tech production which is an excellent combination of technologies, sophisticated facilities and professional spirits.
Process of Tinning Line
PACKING
Ton Yi’s packing has been specially developed to guarantee its product during the handling, transportation and warehousing. Tinplate in cut lengths are usually shipped in lots containing 1500 sheets in one skid. The quantity of sheets per package can be modified when required.
IDENTIFICATION/
All packages of cut length are attached with labels carrying STEEL TYPE, TEMPER, SURFACE FINISH, DIMENSIONS, WEIGHT, QUANTITY OF SHEETS CONTAINED, CHECK CODE, etc. -
Ton Yi has a multi-purpose plating line producing tinplates, tin free steel and other plated steel which can be packed in both sheets and coils. Its annual capacity is 300 thousand metric tons at speed of 350 mpm. There is a set of scroll-cutting equipment for cutting coil in scrolled sharp, especially for can end pressing
1. Standard Specification
A. Tinplate
Tinplate produced in Ton Yi meets the requirements of CNS 4155、JIS G3303 standard.
B. Tin Free Steel (TFS)
Tin Free Steel produced in Ton Yi meets the requirements of CNS 11241、JIS G3315 standard.2. Product Size
Item
Thickness
mm(lb)Width
mm(in)Lenght
mm(in)Coil WT
M/T(lb)Inside DIA.
mm(in)Sheet
0.14~0.60
680~950 508~1,050 ___ ___ ___ ___ Coil 0.14~0.60 680~950 ___ ___ max.11 406(16),419(16.5),
508(20)
3. Steel Type
Steel Type
Characteristics
MR
It contains few residual minor constituents and has a good corrosion resistance, so that it is widely used for such application as containers. L
It contains particularly few residual minor constituents such as Cu,Ni,Cr,Mo,so that it is suitable for the material of containers which require improved corrosion resistance. D
It is aluminum killed steel ,so that it is suitable for the application which bear deep drawing or other working that is liable to produce Luder's Lines.
4.Temper Designation
Designation
HR30TSm
Usage
Thickness (mm)
t≦0.210
0.210＜t≦0.280
0.280＜t
SR
(Single Reduced)
T-1
50±4
49±4
48±4
Drawn requirements , nozzles , spouts , closures.
T-2
54±4
53±4
52±4
Applications where moderate drawability and some stiffness are required small square and oval.
T-2.5、T-2.5CA
56±4
55±4
54±4
Items requiring the drawability of T2 in combination with the stiffness of T3.
T-3、T-3CA
58±4
57±4
56±4
Can ends and bodies , large diameter closures , crown caps.
T-4、T-4CA
62±4
61±4
60±4
General line cans ,crowns and others requiring higher stiffness than T3.
T-5CA
66±4
65±4
64±4
Large can ends and bodies where excellent bulking resistance is required.
Designation
HR30TSm
Usage
Thickness (mm)
DR
(Double Reduced)DR-7.5CA
71±4
To form the body and cover of the three-piece tin cans.
DR-8CA
72±4
To form the body and cover of the two- and three-piece tin cans. Also, it can form the body of the beverage cans, such as beer and carbonated drink.
DR-8.5CA
73±4
To form the body and cover of the three-piece tin cans.
DR-9CA
75±4
To form the body and cover of the two- and three-piece tin cans. Also, it can form the body of the large cans.
Remarks:
1. The suffix CA means continuous-annealing. CA tinplate has superior features due to the greater rigidity, high corrosion resistance and uniformity of mechanical properties and is ideal for speedy can-making.
2. DR: Base metal produced by double cold reduction process --- the base metal has received a second major cold reduction following annealing. Consequently, it offers greater rigidity and strength than conventional base metals.
3. Both CA and DR tinplates have the property of mechanical direction. It is necessary to have the rolling direction of tinplate parallel with the con circle.
5. Tin Coating Weight Designation
Type of Coating
Designation of Coating Weight
Nominal Coating Weight
Minimum Ave. Coating Weight
CNS,JIS
g/m2
lb/B.B.
g/m2
lb/B.B.
Equal Coating
1.1/1.1
#10/10
1.1/1.1
0.05/0.05
0.9/0.9
0.04/0.04
2.8/2.8
#25/25
2.8/2.8
0.125/0.125
2.45/2.45
0.11/0.11
5.6/5.6
#50/50
5.6/5.6
0.25/0.25
5.05/5.05
0.23/0.23
8.4/8.4
#75/75
8.4/8.4
0.375/0.375
7.55/7.55
0.35/0.35
11.2/11.2
#100/100
11.2/11.2
0.50/0.50
10.1/10.1
0.45/0.45
Differential Coating
2.8/5.6
#25/50
2.8/5.6
0.125/0.25
2.45/5.05
0.11/0.23
2.8/8.4
#25/75
2.8/8.4
0.125/0.375
2.45/7.55
0.11/0.35
2.8/11.2
#25/100
2.8/11.2
0.125/0.50
2.45/10.1
0.11/0.45
5.6/8.4
#50/75
5.6/8.4
0.25/0.375
5.05/7.55
0.23/0.35
5.6/11.2
#50/100
5.6/11.2
0.25/0.50
5.05/10.1
0.23/0.45
8.4/11.2
#75/100
8.4/11.2
0.375/0.50
7.55/10.1
0.35/0.45
Remarks:
1.The following designations and markings are used for differentially coated tinplates:
A. A-mark : Parallel lines on the heavily coated surface.
B. S-mark : Single continuous line on the lightly coated surface.
C. Interrupted parallel lines are marked on the lighter coated surface.(The marking symbol may be agreed by the purchaser and the manufacturer)
2.For the tin coating mass over 11.2(#100) or below 1.1(#10), please inquire.Differential Marking
Type
Designation
Differential Marking
Parallel lines on the heavily coated surface
A continuous line on the lightly coated surface
Differential Coating
2.8/5.6 (#25/50)
1/2" line spacing
A continuous line should be given on the lightly coated surface at 3 mm from the trimmed edge
2.8/8.4 (#25/75)
1" line spacing
2.8/11.2 (#25/100)
1-1/2" line spacing
5.6/8.4 (#50/75)
1/2",1" line spacing
5.6/11.2 (#50/100)
1/2",1-1/2" line spacing
8.4/11.2 (#75/100)
1",1-1/2" line spacing
Examples of Marking
6. Surface Finish
Code
Classification
Specific Features
B
Bright Finish
Bright finish a luster surface provided by a flow-brightened tin coating on a smooth grindstone finished steel base.
R
Stone Finish
A luster surface provided by a flow-brightened tin coating on a steel base characterized by a directional grindstone pattern.
S
Silver Finish
A luster surface provided by a flow-brightened tin coating on a coarse dull finished steel base.
M
Matte Finish
A dull surface provided by an unmealted coating generally on a dull finished steel base.
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When an inquiry is made about or when an order is placed for Ton Yi’s Tinplate, please give the following information.
１. Tinplate specification
A. Steel type
B. Dimensions
C. Tin Coating weight
D. Desired temper designation
E. Surface finish required
２. Specific end use
３. Packing and marking requirements
４. Delivery requirement
５. Any other information, if required
For more information,please contact:
Scottie Su
TEL:886-6-2531131 Ext:508
FAX:886-6-2539361
E-mail: scottie@tonyi.com.tw