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鋼板表面質(zhì)量是鋼板質(zhì)量的重要指標(biāo)之一，表面質(zhì)量的優(yōu)劣直接影響其最終產(chǎn)品的質(zhì)量與性能。
The surface quality of steel plate is one of the most important indexes for the quality of steel plate.
在鋼板加工過程中，由于原材料、軋制設(shè)備和工藝等多種原因，常常導(dǎo)致鋼板表面出現(xiàn)結(jié)疤、裂紋、輥印、刮傷、針眼、鱗皮、孔洞、麻點(diǎn)等各種缺陷。這些缺陷不僅影響到產(chǎn)品的外觀，而且降低了產(chǎn)品的抗腐蝕性、耐磨性和疲勞強(qiáng)度等性能。如何在生產(chǎn)過程中快速檢測鋼板的表面質(zhì)量，有效控制和提高產(chǎn)品的表面質(zhì)量，降低產(chǎn)品的次品率，提高勞動(dòng)生產(chǎn)效率，對于鋼板加工企業(yè)具有十分重要的現(xiàn)實(shí)意義。
In steel processing, as raw materials, rolling equipment and technology and other reasons, often cause scarring, cracks, scratch
es, roller, needle, scale, holes, pits and various defects in the surface of the steel plate. These defects not only affect the appearance of the product, but also reduce the corrosion resistance, wear resistance and fatigue strength. How the quality of the steel plate surface rapid detection in the production process, effective control and improve product quality, reduce product defect rate, improve labor productivity, has very important practical significance for steel processing enterprises.
目前鋼板表面缺陷檢測的方法，主要有傳統(tǒng)的無損檢測和現(xiàn)代的機(jī)器視覺技術(shù)。其中，無損檢測技術(shù)主要有渦流檢測技術(shù)、紅外檢測技術(shù)和漏磁檢測技術(shù)等。但是，由于這些技術(shù)方法并非十全十美，有的還存在各種不同的缺點(diǎn)，比如檢測精度低、檢測速度慢、無法對缺陷進(jìn)行分類、缺陷漏檢率高、現(xiàn)場安裝條件苛刻等，因此并不能完全滿足高速軋制帶鋼表面質(zhì)量檢測的要求。
At present, the methods of surface defect detection of steel plate mainly include traditional nondestructive testing and modern machine vision technology. Among them, nondestructive testing technology mainly includes eddy current testing technology, infrared detection technology and magnetic flux leakage testing technology. However, because these methods are not perfect in every respect, some also have various shortcomings, such as low precision, slow detection speed, unable to defect classification, defect detection rate is high, on-site installation conditions, and therefore can not fully meet the surface quality requirements of high-speed rolling strip detection.
隨著CCD(電荷耦合元件)技術(shù)、圖像處理技術(shù)，尤其是計(jì)算機(jī)技術(shù)的飛速發(fā)展，機(jī)器視覺技術(shù)也迅速發(fā)展，使鋼板表面質(zhì)量在線檢測成為可能。
With the rapid development of CCD (charge coupled device) technology and image processing technology, especially computer technology, machine vision technology is developing rapidly.
這種在線檢測系統(tǒng)可在生產(chǎn)線正常運(yùn)行的條件下實(shí)時(shí)、高效地檢測出鋼板表面的各類缺陷，通過統(tǒng)計(jì)分析并參照產(chǎn)品質(zhì)量等級(jí)評(píng)定標(biāo)準(zhǔn)，評(píng)估出單個(gè)或批量產(chǎn)品的質(zhì)量狀況，并提供給工廠質(zhì)量控制部門，作為其決策的依據(jù)。同其他檢測技術(shù)相比，具有很大的優(yōu)越性。
The online detection system in the production line running under the condition of real-time and efficient to detect various types of defects on steel plate surface, through statistical analysis and reference standard for grading the quality of products, assess the quality from single or batch of products, and provide the factory quality control department, as the basis for decision-making. Compared with other detection techniques, it has great advantages.
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