In this paper,the mechanical properties and structure of tussah silks rolled from the tussah at controlled different spinning speeds are studied by using Instron material testing system,IR spectroscope,optical polarizing microscope and scanning electron microscope.
对已开始吐丝的柞蚕在人为控制的不同吐丝速度下卷取柞蚕丝,并采用Instron万能试验机、红外光谱、偏光显微镜以及SEM对其力学性能和结构进行了研究。
The elongation of silks can be described with logistic curve and the peak of elongation rate appeared the third day after silking.
吐丝后第3天生长速率最大。
Development and application of head positioning control system based on domestic laying head;
基于国产吐丝机的头部定位控制系统的研制及应用
Discussion on the quality of wire coil by laying head;
高速线材吐丝机吐圈质量的探讨
The coil disorder analysis and the field dynamic balancing study of Morgan high speed laying head in Baotou Iron and Steel Co.;
包钢高线吐丝机乱卷原因分析及其消除措施
Meanwhile,the effect of laying temperature and cooling speed on microstructure and peformance were studied.
介绍了唐山钢铁集团有限责任公司AWSER70S-6CO2气保焊丝用盘条的生产情况;分析了碳、锰、硅含量对该钢抗拉强度的影响和拉拔脆断产生的原因,以及吐丝温度和冷却速度对组织性能的影响。
The effect of technological parameters of stelmor on the microstructure and properties of high carbon wire rolled at high speed has been studied The relationship between the microstructure and the properties of the wire rolled with different laying temperature and cooling rate has been analyzed Optimal technological parameters of stelmor have been obtaine
研究了 9mm高碳钢高速线材斯太尔摩工艺参数 ,分析了不同吐丝温度和模拟控制冷却速率对金相组织和力学性能的影响 ,确定了最佳的斯太尔摩工艺参数。
The product quality is improved by optimizing chemical component, adjusting laying temperature and cooling speed to improve microstructure and property .
以牌号为GH60的钢种为例介绍高线生产含Ti焊丝的情况,通过优化化学成分、调节吐丝温度和冷却速度来改善组织性能,提高产品质量。
The rule of wear of loop laying pipe caused by many aspects such as different specifications and varieties has been mastered through monitoring online wall thickness with ultrasonic thickness gauge.
通过利用超声波测厚仪对在线吐丝管壁厚的监测,掌握了不同规格、品种等多方面原因造成对吐丝管磨损的规律,从而制订相应的措施,提高了吐丝管的使用寿命,对提高吐丝圈形,产品的外形质量提供了保障。