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我厂生产的甲板是一种高强度钢板,热处理后能获得较高的机械性能(屈服极限在140公斤/毫米~2左右)。生产的最大困难,是热处理时产生的变形需要特大功率的冷矫设备加以矫正,尤其是弯曲件的矫形,不仅效率低,质量差,而且劳动强度大;由于它的塑性较低(延伸率仅4～5%),冷矫时,易产生裂纹,使大量产品报废。因此,如何控制热处理时的变形是甲板生产的关键。
The deck that our factory produces is a kind of high strength steel plate, after the heat treatment can obtain the high mechanical performance (yield limit is about 140 kg / mm ~ 2). The biggest difficulty in the production is that the deformation caused by the heat treatment needs extra cold straightening equipment to be corrected, especially the bending of the bending part, which is not only inefficient, poor in quality but also labor-intensive; due to its low plasticity 4 ~ 5%), cold straightening, easy to produce cracks, so that a large number of products scrapped. Therefore, how to control the deformation during heat treatment is the key to deck production.