潤滑與冷卻對熱軋產品具有重要性的意義，潤滑油在軋延過程中進行潤滑、冷卻和清洗的作用，所以對鋼帶表面品質有很大程度取決於潤滑油的性能、油量與使用情況。目前，熱軋鋼帶潤滑油又稱為軋延油，在使用過程中，因軋延條件的複雜性、惡劣化，必定對鋼帶產生一定的影響，相對影響到鋼帶表面品質。由於熱軋生產溫度與軋延速度具有相關性，其原理經製程電腦所計算得出的理論數據，調整冷卻水量對製程設定的影響甚大，而且要求軋延穩定性，於是調整冷卻水壓進行對鋼帶表面的測試。隨著今後對鋼帶表面品質的要求越來越高，這些問題將更加顯著。因此，軋延油量的多寡與冷卻水壓力的大小在軋延過程中的變化情形對熱軋鋼帶的表面品質非常重要。
本研究針對中鴻熱軋廠精軋機分析熱軋潤滑油量與冷卻水壓分別對輥面及鋼帶表面品質的影響，應用軋延潤滑與冷卻的相關技術，結合現場情況對軋延潤滑與冷卻進行實驗，實驗過程中，軋延油量對輥面的影響從目視及觸摸即可得知，而冷卻水壓的大小必須透過電子儀器來偵測表面粗糙度才觀察得出結果。研究結果指出軋延油的油量在精軋前段的效果有相互作用的關係，但需以軋延力的大小與軋延穩定性來當作判斷準則。
從實驗結果指出，冷卻水壓大的鋼帶表面粗糙度雖然佳，但其零星部位會因壓力大而造成凹陷深度深；相對冷卻水壓小的表面粗糙度差，不過凹陷深度淺，使用於電鍍的產品上，具明顯的經濟效益。

Based on the finishing mills in Chung Hung hot rolling plant, the thesis is to study the effects of the flow rate of hot rolling lubricant and the cooling-water pressure on the qualities of roller and steel strip surfaces. The experimental study is conducted by combining the application of rolling lubrication and cooling related technologies with the site conditions. The effect of rolling oil on the roller surface can be learned from the visual and touch inspections. However, to analyze the influence of the cooling-water pressure needs to use electronic instruments to detect the surface roughness of the steel strip. The research result indicates that the amount of the rolling oil has the interaction relationship with the front-end finish rolling, whose judge criterion is subject to the rolling force magnitude and stability.The result also illustrates that the larger cooling water pressure has the smaller average roughness. However, the higher pressure water would cause the deeper depressions in some sporadic sites.Since the average roughness for the pressure range used in the work all fits the product requirement, the steel strips with shallower depressions (caused by the lower pressure water) are chosen, which could be used for electroplating products with obvious economic benefits.

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