SPCC steel plate
SPCC steel plate is a cold rolled carbon steel plate specified in the Japanese Industrial Standard (jis g 3141). Its full name is "steel plate cold rolled commercial quality", where spcc represents the characteristics and uses of this steel plate: s represents steel. , p means flat plate, c means commercial grade, and the last c means cold rolling processing. This steel plate is a low-carbon steel plate often used to make parts for new refrigerators, downsized refrigerators or conveyor belts for automatic cars. This steel plate has excellent forming and stamping properties, and can be processed by deep cold stamping. Due to its low carbon content, it has poor mechanical properties but has good plasticity, making it simple and easy to shape into different sizes. Although spcc steel plate is less suitable for applications requiring higher strength, it is still widely used in many industries such as home appliances and automobiles. At the same time, this material also has excellent corrosion resistance and is widely used in occasions with relatively high requirements.
The surface treatment of spcc steel plate can be done in many ways. Here are some common methods:
Mechanical cleaning: Use tools such as wire brushes or sandpaper to polish and rinse the surface to remove dirt such as rust and oil.
Chemical treatment: using acid, alkali or other chemical reagents to dissolve or convert surface oxides or other impurities into cleanable substances to achieve the purpose of cleaning the surface.
Electroplating treatment: Metal plating is performed on the surface of the steel plate through electrolysis to produce a layer of metal protective layer to improve its corrosion resistance and appearance.
Coating treatment: Spray various colors of paint on the surface of spcc steel plate to play anti-corrosion and beautification functions.
Different surface treatment methods are suitable for different industrial needs. Choosing the appropriate method to treat the surface of spcc steel plate according to the actual situation can extend its service life and maintain excellent mechanical properties.
SECC steel plate
The full name of SECC is Steel, Electrolytic Zinc-coated, Cold Rolled Steel Coil, which is a steel plate that is electrolytically galvanized after cold rolling. The surface is electrolytically galvanized to have better anti-corrosion performance and aesthetics. It is usually used to manufacture products with low anti-corrosion performance and decorative requirements, such as home appliance casings, instrument casings, etc.
SECC galvanizing method:
Hot Dipped Galvanized Coil: Hot-dip galvanizing is an anti-corrosion treatment that forms a zinc layer on the surface of steel. It is to immerse steel plates or steel parts into molten zinc liquid that is preheated to an appropriate temperature (usually 450-480 degrees Celsius), and form a thicker and dense zinc-iron alloy coating on the surface of the steel parts through reaction. Protect steel parts from corrosion. Compared with electrolytic galvanizing, hot-dip galvanizing has higher corrosion resistance and longer service life, and is usually used to manufacture important products such as large structural parts, ships, bridges, and power generation equipment.
Continuous galvanizing method: Rolled steel sheets are continuously immersed in a plating bath containing dissolved zinc.
Plate galvanizing method: The cut steel plate is immersed in a plating bath, and there will be zinc spatter after plating.
Electroplating method: electrochemical plating. There is zinc sulfate solution in the plating tank, with zinc as the anode and the original steel plate as the cathode.
SPCC vs SECC
SECC galvanized steel sheet and SPCC cold rolled steel sheet are two different materials. Among them, SECC refers to electrolytically galvanized cold-rolled steel sheets, while SPCC is a universal cold-rolled steel sheet standard.
Their main differences are:
Physical properties: SECC has a zinc coating and has better corrosion resistance; SPCC has no anti-corrosion layer. Therefore, SECC is more durable than SPCC and prevents rust and corrosion.
Surface treatment: SECC has undergone electrolytic galvanizing and other treatment processes, and has a certain degree of decoration and aesthetics; while SPCC uses a cold rolling process without surface treatment.
Different uses: SECC is usually used to manufacture parts or casings in the fields of electrical appliances, automobiles, and home appliances, while SPCC is widely used in industries such as construction, manufacturing, and packaging.
In short, although both are cold-rolled steel plates in terms of process components, there are significant differences in their anti-corrosion properties, surface treatments and uses. The choice of SECC or SPCC steel plate should be determined based on the specific situation, taking into account various factors such as the use of the product being manufactured, the environment and actual needs, and selecting the most appropriate material.
Post time: Nov-06-2023