Cold rolling under the recrystallization, but generally understood to use rolling temperature of the rolled material. Rolled and cold-rolled aluminum foil rolled into plate. Than the thickness of 0.15 ~
Called plates, 0.15 to less known foil. Europe and the United States to use more 3-6 sets of continuous cold rolling mill as a device.
Applications
Cold-rolled strip is widely used, such as automobile manufacturing, electrical products, rolling stock, aerospace, precision instruments, food and canned.
Cold rolled steel sheet is ordinary carbon steel cold rolled sheet for short, also known as cold-rolled plate, commonly known as cold, sometimes mistakenly written as cold rolling plate. Cold plate is made of ordinary carbon steel hot rolled strip, after further cold rolled steel plate having a thickness of less than 4mm. Since rolling at room temperature, does not produce iron skin, therefore, the cold plate surface quality, dimensional accuracy, coupled with the annealing treatment, the mechanical properties and process performance are better than hot rolled steel sheet, in many areas, especially in the appliance manufacturing, it has been gradually replaced with hot rolled steel sheet. https://www.facebook.com/DongguanYizeMouldCoLtd?ref=hl
Applicable Grade: Q195, Q215, Q235, Q275; SPCC (Japanese brands); ST12 (German grade)
Japanese general structural steel grades that way (JIS standard)
1 Japanese steel grades in the general structural steel is mainly composed of three parts: The first part of that material, such as: S (Steel) said steel, F (Ferrum) represents iron; second portion of said different shapes, types, uses, such as P (Plate) indication board, T (Tube) indicates pipe, K (Kogu) represents the tool; the third part of that feature figures, usually minimum tensile strength. Such as: SS400 - S represents the first steel (Steel), said second S "structural" (Structure), 400 for the lower tensile strength of 400MPa, a tensile strength of 400MPa as a whole represents a general structural steel.
2.SPHC-- the first steel Steel S is an abbreviation, P is the abbreviation plate Plate, H is the heat Heat acronym, C for commercial Commercial abbreviation indicates the overall hot-rolled steel sheet and strip for general use.
3.SPHD-- indicates stamping rolled steel sheet and strip.
4.SPHE-- expressed deep drawing hot-rolled steel sheet and strip.
5.SPCC-- indicates a general cold-rolled carbon steel sheet and strip, equivalent to China Q195 ~ Q215A grades, Germany grade ST12. Airbender third letter C is Cold Cold abbreviations. The need to ensure mechanical performance, plus T in grade at the end as SPCCT.
6.SPCD-- that Cold Rolled carbon steel sheet and strip, equivalent to China 08AL (13237) quality carbon structural steel, equivalent to the German grade ST13.
7.SPCE-- expressing deep drawing cold rolled carbon steel sheet and strip, equivalent to China 08AL (5213) deep drawing steel, equivalent to the German grade ST14. Aging treatment, the grade at the end plus N, as SPCEN.
Cold-rolled carbon steel sheet and strip quenched Code: annealed state is A, the standard quenching of S, 1/8 hard to 8,1 / 4 hard to 4,1 / 2 to 2 hard, hard to 1.
Surface processing code: matt finishing for the D, luster finishing of B. Such as SPCC-SD standard conditioning, matt finishing rolled carbon sheet. Again SPCCT-SB represents the standard conditioning, light processing, sought assurances that the mechanical properties of cold-rolled carbon sheet.
Symbol:
1, Q-ordinary carbon steel yield point (limit) of the Code, it is "framed" the first phonetic alphabet; 195,215,235,255,275 - represent their yield point (limit ) values, unit: MPa MPa (N/mm2); Since Q235 steel strength, ductility, toughness and weldability and other mechanical properties of carbon structural steel is the best, can better meet the general use requirements, so a very wide range of applications.
2, S-Steel (Steel), P-plate (Plate), C-rolled (cold), fourth in the C-commercial (commercial).
3, ST-steel (Steel), 12 - ordinary grade cold-rolled steel sheet,
Tags: dimensional accuracy - Size - Plate Breed Standard
Cold-rolled steel: Steel - technology standard
Tag example: B-0.57501500-GB708-88; steel, standard number Q/BQB402, grade SPCC, heat treatment annealing + formation (S), the central processing state table linen D, surface quality for the FB level trimming (cutting edge EC, not trimming EM) steel, thickness 0.5mm, B-level precision, width 1000mm, A-level precision, length 2000mm, A-level accuracy, roughness accuracy PF.A, is marked as: steel ECQ / BQB 402 - SPCC-SD-FB / (0.51000A2000A-PF.A);
Cold-rolled steel: Q225-GB912-89
Main origin: Baosteel, Anshan, Benxi Iron and Steel, Wuhan Steel, Handan Iron and Steel, Baotou Steel, Tangshan Iron and Steel, Lianyuan Steel, Jinan Iron and Steel, etc.
Cold-rolled steel sheet: the ordinary carbon steel or low alloy steel cold-rolled steel. Good quality cold-rolled plate surface. Good drawing properties. Required to ensure that its cold and cup test pass, commonly used in the automotive and other industries and coated sheet materials. https://www.facebook.com/DongguanYizeMouldCoLtd?ref=hl
High-quality cold-rolled steel sheet: including a variety of high-quality cold-rolled steel sheet, the most commonly used is carbon structural steel, especially deep drawing cold rolled steel sheet, is made of cold-rolled carbon quality steel 08Al sheet, plate press surface quality is divided into three groups; Ⅰ, Ⅱ, Ⅲ, respectively particularly high, high, high surface finishing by drawing level is divided into ZF, HF, F grade (on behalf of Punch drawing the most complex, it is complicated, complex parts), according to the plate thickness tolerances, is divided into A, B two precision, widely used in automobile and tractor industries.
Cold-rolled steel, smooth surface, fine processing for cars, refrigerators, washing machines and other appliances, and industrial equipment, various construction materials. With economic development, cold-rolled steel has been called a modern society must be material. Classification of cold-rolled products: hot rolled pickling, rolling hard, ordinary cold-rolled, galvanized (galvanized fingerprint resistant, hot dip galvanized), zinc, tin plating, coating, electrical steel (silicon steel) and so on.
1, the hot pickling:
2, hard roll: at room temperature for hot continuous rolling pickling.
Product Features: Because no annealing, and its high hardness (HRB greater than 90), poor machining performance, only a simple directional bending less than 90 degrees (perpendicular to the winding direction).
Product Category
(1) processed into ordinary cold rolling after annealing;
(2) before annealing treatment device processing zinc galvanizing;
(3) the basic need for processing panels.
Product Features:https://www.facebook.com/DongguanYizeMouldCoLtd?ref=hl
(A) have good durability, longer life compared with galvanized steel;
(2) has good heat resistance, compared with galvanized steel under high temperature and is not easy to change color;
(3) has a good thermal reflectivity;
(4) has a gorgeous silver-white surface;
(5) has a similar galvanized steel processing and coating performance;
(6) has good weldability.
Applications: demanding industries in the use of galvanized sheet.
6, tin plating (tin): The Frostin insoluble anode-type tin plating processing technology.
7, painted;
8, electrical steel (silicon steel).
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