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冷軋鋼板由于有一定程度的加工硬化，韌性低，但能達(dá)到較好的屈強(qiáng)比，用來(lái)冷彎彈簧片等零件，同時(shí)由于屈服點(diǎn)較靠近抗拉強(qiáng)度，所以使用過(guò)程中對(duì)危險(xiǎn)沒有預(yù)見性，在載荷超過(guò)許用載荷時(shí)容易發(fā)生事故。

Due to work hardening of cold rolled steel plate, a certain degree of toughness is low, but can yield better than that used to cold spring piece parts, at the same time as the yield point is close to the tensile strength, so the use of risk is not predictable, prone to accidents in the load exceeds the allowable load.

1) 冷板采用冷扎加工表面無(wú)氧化皮，質(zhì)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 used in cold rolling surface nonscale, good quality. The hot surface oxide thickness of hot rolled steel, have difference.

2)熱軋鋼板韌性和表面平整性差，價(jià)格較低，而冷軋板的伸展性好，有韌性，但是價(jià)格較貴。

2 hot rolled steel plate toughness and surface roughness is poor, the price is low, while the cold rolled plate of good ductility, toughness, but the price is more expensive.

3)軋制分為冷軋和熱軋鋼板，以再結(jié)晶溫度為區(qū)分點(diǎn)。

3) divided into cold and hot rolled steel plate, the recrystallization temperature is provided.

4) 冷軋：冷軋一般用于生產(chǎn)帶材，其軋速較高。

4) cold rolling: cold rolling is generally used in the production of strip, the high speed.

熱軋鋼板：熱軋的溫度與鍛造的溫度

Hot rolled steel plate: hot rolling temperature and forging temperature

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(lái)區(qū)分，冷扎板的光滑度高于熱扎鋼板。

5) hot plate surface plating black brown, plating cold rolled plate surface is gray, after plating from the surface smoothness to distinguish, lengzha board smoothness is higher than that of hot rolled steel plate.

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