Based on the analysis of the piano wire’s vibration characteristics, the authors estab lished the mechanical model of piano wire proba bility screen , obtained the analytic so lution of thestable forced vibration...Based on the analysis of the piano wire’s vibration characteristics, the authors estab lished the mechanical model of piano wire proba bility screen , obtained the analytic so lution of thestable forced vibration of screen wires , and developed the para meter designfor m ula of the piano wire screen . The para meter design form ula has been used in coalpreparation industry .展开更多
通过对3家国外公司生产的琴钢丝和2家国内公司生产的碳素弹簧钢丝实物样品进行化学成分、表面质量、脱碳、金相组织、抗拉强度、断面收缩率和扭转值的分析研究。结果表明,3家国外公司生产的琴钢丝质量水平较高,其中B公司3.00 mm SWRS80...通过对3家国外公司生产的琴钢丝和2家国内公司生产的碳素弹簧钢丝实物样品进行化学成分、表面质量、脱碳、金相组织、抗拉强度、断面收缩率和扭转值的分析研究。结果表明,3家国外公司生产的琴钢丝质量水平较高,其中B公司3.00 mm SWRS80A琴钢丝各项指标较好且均衡;2家国内公司生产的碳素弹簧钢丝质量和国外公司生产的琴钢丝相比有差距,但D公司差距不大,E公司差距很大;国外公司生产的琴钢丝技术指标也存在不均衡现象。展开更多
文摘Based on the analysis of the piano wire’s vibration characteristics, the authors estab lished the mechanical model of piano wire proba bility screen , obtained the analytic so lution of thestable forced vibration of screen wires , and developed the para meter designfor m ula of the piano wire screen . The para meter design form ula has been used in coalpreparation industry .
文摘通过对3家国外公司生产的琴钢丝和2家国内公司生产的碳素弹簧钢丝实物样品进行化学成分、表面质量、脱碳、金相组织、抗拉强度、断面收缩率和扭转值的分析研究。结果表明,3家国外公司生产的琴钢丝质量水平较高,其中B公司3.00 mm SWRS80A琴钢丝各项指标较好且均衡;2家国内公司生产的碳素弹簧钢丝质量和国外公司生产的琴钢丝相比有差距,但D公司差距不大,E公司差距很大;国外公司生产的琴钢丝技术指标也存在不均衡现象。