Electro Tinning Line

ElectroTinning Line

The continuous electro tinning refers to a procedure in which tin from stannatesolution being continuously deposited onto the surface of pretreated steelstrip to obtain tinning coating under the effect of electric field. The goal ofthis procedure is to coat a uniform tin layer onto the surface of cold rollingsteel plate to resist the corrosions from outside circumstances. Tinning platehas a vast utilization, mainly in the industry of can contained food. Besides, tinningplate can be used as packaging materials in chemical industry, pharmaceuticalindustry, dyes for textile industry, industrial oil, electric appliance,instruments and military industry. Tinning plate can be welded, color coated orprinted easily.

Process flow

Main equipments according to processflow in turn are as follows:

Manually loading → entry skid → coil loading trolley I# &II# → pay off reel I# &II# → decoiling pinch roll I# &II# → transverse shearer I# &II# → join pinch roll → welder → pinchroll after welding → tension bridle roll I# →entry accumulator → CPC double roller centering machine I# → tension bridle roll II#→ chemical degreasing → electrolyzed degreasing → electrolyzed pickling → CPCdouble roller centering machine II# → electrotinning → soft melting→ passivating section → hot airdrying → electrostatic oiler → tension bridle roll III#→ exit accumulator → CPC double-roller centering machine III# → pinhole detector → stroboscope → tensionbridle roll IV# → pinch shearer → exit pinchroll I# &II# → recoiler I# &II# (EPC) → coil unloading trolley I# &II# → auxiliary recoiler I# &II# → exit skid → manually unloading

Manually loading →entry skid →coil loading trolley I# &II# →pay off reel I# &II# →decoiling pinch roll I# &II# →transverse shearer I#&II# →join pinch roll →welder →pinch roll after welding →welder →tension bridle roll I# →entry accumulator →CPC double roller centering machine I# →tension bridle roll II# →chemical degreasing →electrolyzed degreasing →electrolyzed pickling →CPC double roller centering machine II#→electro tinning →soft melting→passivating section →hot air drying →electrostatic oiler →tension bridle roll III# →exit accumulator →CPC double-roller centering machine III#→pinhole detector →stroboscope →tension bridle roll IV# →pinch shearer →welder →exit pinch roll I# &II# →welder →recoiler I# &II# (EPC) →coil unloading trolley I# &II# →auxiliary recoiler I# &II# →exit skid →manually unloading.

TechnicalParameters:

◆Raw material: Low carbon cold rollingcoil

◆Thicknessof steel strip: 0.15-0.5mm

◆Width ofsteel strip: 800-1,250mm

◆Weight of raw material coil: Max. 20t/coil

◆Weight of end product coil: 5-20t/coil

◆Processing speed: 20-180m/min

◆Weigh of tin coating: 2.80g/ (25#); 5.60g/ (50#);

                    8.40g/(75#);11.20g/(100#)

◆Technology:Continuous electro tinning to the front and back surfaces of thin plate,

thickness of the tin coatingsuccessively adjustable,

different coating inthe front and back surfaces

◆Products grades: Industrial grade, foodgrade

?◆Transmission mode: AC transmission,frequency conversion?

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