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SPHC Pickled Steel Plate video

SPHC Pickled Steel Plate

Pickled strip steel is a steel product obtained by removing the surface oxide scale from hot-rolled strip steel through the pickling process. The surface oxide scale not only affects the appearance of the steel, but also has adverse effects on subsequent processing and performance. Pickled strip steel can effectively solve these problems.

Description

1. Product definition:

 

  • Pickled strip steel is a steel product obtained by removing the surface oxide scale from hot-rolled strip steel through the pickling process. The surface oxide scale not only affects the appearance of the steel, but also has adverse effects on subsequent processing and performance. Pickled strip steel can effectively solve these problems.

 

2. Production process:

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(1) Uncoiling: Unroll the hot-rolled strip steel in coils to prepare for subsequent processing.

(2) Straightening: Eliminate the bending or warping of the hot-rolled strip steel during the rolling and coiling process, ensure the straightness of the strip steel, and provide a stable processing basis for subsequent processes.

(3) Pickling: Use acid (such as hydrochloric acid, sulfuric acid, etc.) to react chemically with the oxide scale to convert the water-insoluble oxide into water-soluble iron salts, thereby removing the oxide scale. The chemical reaction includes dissolution, mechanical stripping and reduction.

(4) Cleaning: After pickling, rinse the strip steel with clean water to remove the residual acid and other impurities on the surface and prevent the residual acid from corroding the strip steel.

(5) Drying: Use hot air drying or other drying methods to remove moisture from the surface of the strip to avoid rust.

(6) Finishing: Including trimming, leveling and other operations, cutting off the uneven parts of the strip edge, making the strip shape more flat through leveling, reducing unevenness deviation and improving dimensional accuracy.

 

3. Product characteristics:

 

(1) High surface quality: After removing the iron oxide scale, the surface is smooth, flat and clean, without defects such as oxide scale and rust, which is convenient for subsequent welding, painting, electroplating and other processing, can improve the adhesion and corrosion resistance of the coating, and enhance the appearance of the product.

(2) Excellent processing performance: It retains the good processing performance of hot-rolled strip steel and can be subjected to various cold processing such as stamping, bending, stretching and welding, meeting the processing needs of different industries for complex-shaped parts.

(3) Moderate mechanical properties: It has certain strength, toughness and ductility, and can meet the use requirements of general engineering structures and machinery manufacturing. For example, its yield strength and tensile strength can meet the strength requirements of common mechanical parts, and it is not easy to break or deform excessively during stamping, bending and other processing.

(4) Cost advantage: Compared with cold-rolled strip steel, the production process of pickled strip steel is relatively simple and the cost is low. In some occasions where the surface quality and processing performance requirements are not particularly high, pickled strip steel can be used instead of cold-rolled strip steel to reduce costs for enterprises.

 

4. Common specifications:

 

(1) Thickness: Usually between 0.8-8.0mm, common ones are 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, etc., and the appropriate thickness can be selected according to different industries and product requirements.

(2) Width: Generally 600-2000mm, common width specifications are 1000mm, 1250mm, 1500mm, etc., to meet the processing requirements of products of different sizes.

(3) Length: It can be a fixed length or a coil. The coil weight is generally around 2-35 tons, which can be customized according to customer needs.

 

5. Application fields:

 

(1) Automobile manufacturing: It is used to manufacture automobile chassis systems (such as beams, sub-beams), wheels (rims, spokes), cab interior panels, compartment panels, anti-collision bumpers, brake sleeves and other automobile parts, which not only meet the automobile's requirements for component strength and processing performance, but also reduce production costs.

(2) Machinery manufacturing: It is suitable for the manufacture of shells, brackets, and parts of equipment such as textile machinery, mining machinery, fans, and general machinery, such as compressor shells and upper and lower covers of household refrigerators and air conditioners, pressure vessels and mufflers of power compressors, and bases of screw air compressors.

(3) Construction industry: It can be used to make steel structures, bridges, pipelines, light steel keels, roof and wall materials, etc. Its good processing performance and surface quality can meet the strength and appearance requirements of building structures and improve the durability of buildings.

(4) Home appliance industry: used to manufacture the shell, bracket, liner, etc. of home appliance products, such as refrigerators, air conditioners, washing machines, water heaters, etc., which not only ensures the structural strength of the product, but also obtains a beautiful appearance through subsequent surface treatment.

(5) Other fields: widely used in bicycle parts, various welded pipes, electrical cabinets, highway guardrails, supermarket shelves, warehouse shelves, fences, iron ladders and various shapes of stamping parts. It is also used in hardware accessories, steel furniture and other industries.

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