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彩鋼板常見的鋼種有哪些?

來源:http://www.ebassfish.com/ 日期:2020-06-04 發布人:jiangucaigang
在國內,對于彩涂鋼板選擇,用戶關心相對較少的是鋼種。因為國內大多數彩涂鋼板生產 廠鋼種種類較少,多數是DC51(因為他們采購來的熱軋板還是軋硬卷基本就是一個鋼種),有些有熱鍍鋅產線的彩涂鋼板廠通過熱鍍鋅退火來生產全硬鋼(S550)或高強鋼(S350等),但難度很大,因為他們對基板的質量、化學成分無法控制。因此,質量穩定性就差,從而導致性能波動大,引起壓型板板材變差。
In China, for the selection of color coated steel plate, users are relatively less concerned about steel grades. Because most of the domestic color coated steel plate production There are few kinds of steel in the plant, most of which are dc51 (because the hot rolled plate or hard rolled coil they purchased is basically a steel type). Some color coated steel plants with hot-dip galvanizing production line produce all hard steel (S550) or high-strength steel (S350, etc.) through hot-dip galvanizing annealing, but it is very difficult because they have no control over the quality and chemical composition of the substrate. Therefore, the quality stability is poor, which leads to large fluctuation of performance, resulting in poor pressure plate.
對建筑物來說,承載重量(風載荷、雪載荷、施工人員和機械)、建筑物的跨度、檁距的設計等都依賴于鋼板的強度,對于建筑維護結構用彩涂和鍍鋁鋅板來說,國外均有相應的標準。如美國的ASTM653、ASTM792,日本的JISG3302、JISG3321,歐州的EN10215、EN10147等。按鋼種大類分成CQ(普通商用級)、DQ(一般沖壓用)、HSS(高強結構鋼)、FH(全硬鋼)。
For buildings, the bearing weight (wind load, snow load, construction personnel and machinery), the span of buildings, the design of purlin distance, etc. all depend on the strength of steel plates. For the color coated and aluminum zinc plated plates for building maintenance structures, there are corresponding standards abroad. For example, astm653 and astm792 in the United States, jisg3302 and jisg3321 in Japan, en10215 and en10147 in Europe, etc. It can be divided into CQ (general commercial grade), DQ (general stamping), HSS (high strength structural steel) and FH (all hard steel) according to the steel categories.
CQ普通商用級
CQ general commercial grade
有色金屬冶煉廠(銅、鋅、鋁、鉛等)是更挑戰彩涂鋼板使用年限的。但是合理的選擇材料、設計、以及環保投入等能保證或提高彩涂鋼板的使用壽命。10年進行更換或維護是應該能做到的。
Nonferrous metal smelters (copper, zinc, aluminum, lead, etc.) are the most challenging for the service life of color coated steel plates. However, reasonable selection of materials, design and environmental protection investment can ensure or improve the service life of color coated steel plate. 10 years of replacement or maintenance should be possible.
DQ一般沖壓用
DQ for general stamping
由于一般建筑用彩板均是輥壓成型或復合夾芯,對材料的沖壓性能要求不高,因此很少在建筑領域使用(部分門窗類彩板除外)。
Generally, the color plates used in construction are roll forming or composite sandwich, so the stamping performance of materials is not high, so they are rarely used in the construction field (except for some door and window color plates).
濟南彩鋼板
HSS高強結構鋼
HSS high strength structural steel
按歐標HSS可分成4-5種不同強度的鋼種,但由于普通CQ級材料已經能夠取代低強度的HSS鋼,因此,市場上用得較多的是屈服強度280Mpa和345Mpa的鋼種,寶鋼所生產的TSTE28和TS350GD就是這兩個鋼種。
According to the European standard, HSS can be divided into 4-5 kinds of steel with different strength. However, because the common CQ grade material has been able to replace the low strength HSS steel, the steel with yield strength of 280mpa and 345mpa is widely used in the market. Tste28 and ts350gd produced by Baosteel are the two kinds of steel.
與普通CQ相比,HSS鋼有幾大優勢:(1)由于屈強比較低因此該鋼種的耐火及抗震性好。(2)對較厚的鋼板,它可以制造大跨度拱型板。(3)對一般的外墻和屋面板型,它可以比CQ材料適當減薄,從而可節約材料消耗。
Compared with common CQ, HSS steel has several advantages: (1) because of its low yield strength, it has good fire resistance and seismic resistance. (2) For thicker steel plates, it can be used to make large-span arch plates. (3) For general exterior wall and roof panel type, it can be properly thinner than CQ material, thus saving material consumption.
是通過控制退火溫度來提高鋼板屈服強度的一類鋼種,按通用標準,屈服強度≥550Mpa,抗拉強度≥570Mpa。這類材料強度高,延伸率低,適用于板型較淺的成型鋼板,使用時能夠大大節約材料。因此,各國爭先研究開發的這種鋼種。在國外標準中,對強度高又要求延伸率好的材料也有描述。例如,采用HSLA(低合金高強度)在煉鋼時加入強化合金元素,但由于強度高在鋼鐵廠進行軋制時加大壓下率就有限制,因此作為維護結構的較薄的彩涂板很少采用HSLA鋼種(另一缺點是成本高)。
It is a kind of steel that improves the yield strength of steel plate by controlling annealing temperature. According to the international general standard, the yield strength is ≥ 550MPa, and the tensile strength is ≥ 570Mpa. This kind of material has high strength and low elongation, which is suitable for forming steel plate with shallow plate shape, and can greatly save materials when used. Therefore, countries are competing for the first research and development of this kind of steel. In foreign standards, materials with high strength and good elongation are also described. For example, HSLA (low alloy and high strength) is used to add strengthening alloy elements in steel-making. However, due to the high strength and the limitation of increasing reduction rate when rolling in iron and steel works, HSLA steel is rarely used as thin color coated plate for maintenance structure (another disadvantage is high cost).
根據寶鋼多年的鋼種使用經驗,彩涂鋼板更終產品板型的保證,與鋼板的強度等級、壓型鋼板的板型以及加工機器等密切相關。
According to Baosteel's many years of experience in using steel grades, the guarantee of the final product shape of color coated steel plates is closely related to the strength grade of steel plates, the shape of profiled steel plates and processing machines.
總的來說,加工道次越多,板型越好,加工速度越慢、板型越好。對壓型鋼板板型來說,淺波板的板型優于高波板。對鋼板強度來說,強度加工后的板型變差的趨勢越明顯。高強鋼的板型相對較差還有另外一個原因就是很多彩涂生產廠僅靠降低熱鍍鋅的退火溫度來提高材料的屈服強度,這樣就會導致鋼板寬度方向上力學性能的不均衡。這種不均衡是由整個寬度方向帶鋼溫度的不均勻引起的,溫度下降可能導致部分部位溫度低于鋼板再結晶的退火溫度。
Generally speaking, the more processing passes, the better the shape of the board, the slower the processing speed and the better the shape of the board. For profiled steel plate, the shape of shallow wave plate is better than that of high wave plate. For the strength of steel plate, the trend of shape deterioration after strength processing is more obvious. Another reason for the relatively poor shape of high-strength steel is that many color coating plants only rely on reducing the annealing temperature of hot-dip galvanizing to improve the yield strength of materials, which will lead to the imbalance of mechanical properties in the width direction of steel plate. This imbalance is caused by the uneven temperature of the strip in the whole width direction. The temperature drop may cause the temperature of some parts to be lower than the annealing temperature of the recrystallization of the steel plate.
有了濟南彩鋼板上面的小總結,希望對廣大客戶有所幫助,如果有什么不理解的或者尋求幫助的請點擊我們的網站:http://www.ebassfish.com 或者來電咨詢,我們會盡全力為您解決
With the summary on Jinan color steel plate, I hope it can help our customers. If you don't understand or ask for help, please click our website: http://www.ebassfish.com  Or call for consultation, we will do our best to solve it for you
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