濟(jì)南彩鋼瓦c型鋼對(duì)大家來說并不陌生。簡(jiǎn)單來說，就是一種看起來像英文字母中“C”的冷彎型鋼，但又分為冷軋和熱軋兩種方式，這也是兩種成型方式。此外，C型鋼的成型方法也可分為：鍍鋅、熱鍍鋅、沖孔等，那么大家知道濟(jì)南C型鋼的冷軋工藝嗎?對(duì)此了解多少呢?接下來我們將為大家詳細(xì)的總結(jié)一下。

Jinan color steel tile C steel is no stranger to everyone. In short, it is a kind of cold-formed section steel that looks like "C" in the English letter, but it can be divided into cold rolling and hot rolling, which are also two forming methods. In addition, the forming methods of C-beam can also be divided into: galvanizing, hot galvanizing, punching and so on. Do you know the cold rolling process of Jinan C-beam? How much do you know about this? Next, we will give you a detailed summary.

熱軋和冷軋是型鋼或鋼板的成型工藝，對(duì)鋼材的組織和性能有很大影響。鋼材的軋制主要是熱軋，冷軋只用于生產(chǎn)小斷面鋼和薄板。

Hot rolling and cold rolling are the forming processes of section steel or steel plate, which have great influence on the microstructure and properties of steel. Steel rolling is mainly hot rolling, cold rolling is only used for the production of small section steel and sheet.

冷軋C型鋼是指在室溫下進(jìn)行冷彎、冷拉等一系列冷加工。這樣形成的鋼材雖然沒有經(jīng)過熱塑壓縮，但其截面上還是或多或少存在殘余應(yīng)力，會(huì)對(duì)C型鋼的彎曲特性產(chǎn)生一定的影響。而熱軋C型鋼是熱軋后內(nèi)部分層的現(xiàn)象，大大削弱了抗拉能力，更嚴(yán)重的是可能出現(xiàn)層間撕裂，非常危險(xiǎn)。而熱軋C型鋼也有殘余應(yīng)力，但這是由于冷卻不均勻造成的殘余應(yīng)力。在外力的作用下，變形、穩(wěn)定性、抗疲勞性都會(huì)出現(xiàn)問題，在一定程度上是危險(xiǎn)的。

Cold rolled C-beam refers to a series of cold working such as cold bending and cold drawing at room temperature. Although the steel formed in this way has not been subjected to thermoplastic compression, there are more or less residual stresses in its section, which will have a certain impact on the bending characteristics of C-beam. The hot rolled C-beam is a phenomenon of internal delamination after hot rolling, which greatly weakens the tensile capacity. What's more, interlaminar tearing may occur, which is very dangerous. Hot rolled C-beam also has residual stress, which is caused by uneven cooling. Under the action of external force, deformation, stability, fatigue resistance will appear problems, to a certain extent, it is dangerous.

熱軋可以破壞鋼錠的鑄造組織，細(xì)化鋼的晶粒，消除顯微組織缺陷，從而提高鋼的致密力學(xué)性能。這種改善主要體現(xiàn)在軋制方向上，使鋼材在一定程度上不再各向同性，在澆注過程中形成的氣泡、裂紋、氣孔也可以在高溫高壓下進(jìn)行焊接。但是，冷軋具有成形速度快、成品率高、不損傷鍍層的優(yōu)點(diǎn)，可以制成各種截面形式，以滿足使用條件的需要。冷軋能使鋼產(chǎn)生很大的塑性變形，從而提高鋼的屈服點(diǎn)。

Hot rolling can destroy the casting structure of ingot, refine the grain of steel, eliminate the microstructure defects, and improve the dense mechanical properties of steel. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic to a certain extent, and the bubbles, cracks and pores formed in the pouring process can also be welded under high temperature and high pressure. However, cold rolling has the advantages of fast forming speed, high yield and no damage to the coating. It can be made into various cross-section forms to meet the needs of service conditions. Cold rolling can cause great plastic deformation of steel, so as to improve the yield point of steel.