日本三级韩国三级美三级91_奇米影视亚洲春色_日韩免费精品_天天操免费视频_日本免费黄色网址_性视频在线

我們都知道熱軋鋼板含碳量可比冷軋鋼板略高些。在成份相持不大的情況下密度是一樣的。熱軋鋼板分為結構鋼、低碳鋼、焊瓶鋼，熱軋鋼板硬度低，加工容易，延展性能好。冷軋板硬度高，加工相對困難些，但是不易變形，強度較高。
We all know that hot rolled steel plate carbon content slightly higher than cold rolled steel sheet. In the case of ingredients is locked density is the same. Hot rolled steel plate is divided into structural steel, mild steel, welding steel, hot rolled steel plate hardness is low, easy processing, good extensibility. Manufacture high hardness, processing is relatively difficult, but it is not easy deformation, high strength.
　　熱軋鋼板強度相對較低,表面質量差點，但塑性好，一般為中厚板、冷軋板、強度高、硬度高、表面光潔度高、一般為薄板，可以作為沖壓用板。
Hot rolled steel plate strength is relatively low, surface quality, but good plasticity, generally for the medium plate, manufacture, high strength, high hardness, high surface finish, generally for sheet, can be used as a drawing board.
　　熱軋鋼板和冷軋鋼板加工工藝不同。熱軋鋼板是在高溫下軋制而成，冷軋是在常溫下炸至。一般來說，冷軋鋼板具有更好的強度，熱軋鋼板具有更好的延性。冷軋的一般厚度比較小，熱軋的可以有較大的厚度。冷軋鋼板的表面質量、外觀、尺寸精度均優于熱軋板。熱軋鋼板，機械性能遠不及冷加工，也次于鍛造加工，但有較好的韌性和延展性。

Hot rolled steel plate and cold rolled steel plate processing technology is different. Hot rolled steel plate is rolled at high temperature, cold rolling is Fried to at room temperature. Generally speaking, cold rolled steel has better strength, hot rolled steel plate has better ductility. The relatively small average thickness of cold rolled and hot rolled can have bigger thickness. Cold rolled steel sheet surface quality, appearance, dimension precision are better than that of the hot rolled plate. Hot rolled steel plate, the mechanical properties of far less cold, also is inferior to the forging processing, but has good toughness and ductility.
　　冷軋鋼板由于有一定程度的加工硬化，韌性低，但能達到較好的屈強比，用來冷彎彈簧片等零件，同時由于屈服點較靠近抗拉強度，所以使用過程中對危險沒有預見性，在載荷超過許用載荷時容易發生事故。
Cold rolled steel sheet due to a certain degree of strain hardening, toughness is low, but can reach better showed, used for cold bending spring pieces and parts, at the same time due to the yield point is close to the tensile strength, so no foresight to danger, in use process in the load exceeds allowable load are prone to accidents.
　　1、冷板采用冷扎加工表面無氧化皮，質量好。熱軋鋼板采用熱扎加工表面有氧化皮，板厚有下差。
1, cold plate using cold processing surface without scale, good quality. Hot rolled steel plate, surface of oxide skin are processed using the hot rolled plate thickness with the poor.
　　2、熱軋鋼板韌性和表面平整性差，價格較低，而冷軋板的伸展性好，有韌性，但是價格較貴。
2, hot rolled steel toughness, surface smoothness is poor, the price is low, and the extension of manufacture and resilient, but the price is more expensive.
　　3、軋制分為冷軋和熱軋鋼板，以再結晶溫度為區分點。
3, rolling into cold rolled and hot rolled steel plate, distinguish between point for recrystallization temperature.
　　4、冷軋：冷軋一般用于生產帶材，其軋速較高。
4, cold-rolled: generally used in the production of strip cold rolling, the rolling speed is higher.
　　5、不電鍍的熱扎鋼板表面成黑褐色，不電鍍的冷扎板表面是灰色，電鍍后可從表面的光滑程度來區分，冷扎板的光滑度高于熱扎鋼板。
5, plating surface of hot rolled steel plate into a dark brown, not plated cold plate surface is gray, from the smooth degree of surface after plating will distinguish, lengzha board smoothness is higher than that of hot rolled steel plate.
　　客戶的滿意就是對我們的肯定，歡迎您前來選購我公司的產品，我們一直以為您提供產品為己任并一直堅持這樣做。歡迎您的光臨。
Customer satisfaction is our affirmation, welcome you to come to my company's products of choose and buy, we always thought that you to provide products as its own duty and always insisted to do. All are welcome.