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厚度自动控制(AGC)是五十年代发展起来的新技术,它使带钢纵向尺寸精度提高了一个数量级,国外热轧板卷的实际厚差为±0.05mm,冷轧为±0.003mm。这样的带钢尺寸公差能够满足各方面用户的需要。我国在六十年代开始研究和实验AGC技术。近来,结合我国当前的设备改造和提高产品质量的需要,又开始了实验和推广AGC技术的新高潮。下面根据实践体会,谈谈AGC技术中的若干问题。 1.提高和改善带钢纵向精度的有效措施坯料沿纵向的厚度和硬度波动、轧制速度等是造成纵向厚差的主要原因。张力既是扰动因素,也
Automatic thickness control (AGC) was developed in the 1950s as a new technology that increased the strip’s dimensional accuracy by an order of magnitude. The actual thickness difference for foreign hot rolled coils was ± 0.05 mm and the cold rolled ± 0.003 mm. This strip size tolerance to meet the needs of users in all aspects. Our country began to study and experiment AGC technology in the sixties. Recently, with the current needs of equipment modification and product quality improvement in our country, a new upsurge of experimenting and promoting AGC technology has begun. The following experience based on practice, talk about a number of issues in the AGC technology. 1. To improve and improve the strip longitudinal accuracy of the effective measures Blank along the vertical thickness and hardness fluctuations, rolling speed is the main reason for the vertical thickness difference. Tension is a disturbing factor, too