浅谈螺旋钢丝排线器的制造与应用

阐述螺旋钢丝排线器的设计、制作、成型,以及拉丝工艺布置对钢丝排线的影响,介绍几种常见的钢丝排线器.螺旋钢丝排线器的形状合理与否是影响原丝卷绕成型的关键因素.     

六角形钢丝圈覆胶不良的影响因素分析

分析胎圈钢丝、覆胶胶料、挤出机温度控制、钢丝预热、钢丝圈缠绕机口型、机头送料架及排线轮等因素对六角形钢丝圈覆胶不良的影响。通过严格控制胎圈钢丝镀层厚度和破断力,适当增大镀层质量;控制覆胶胶料的门尼粘度、门尼焦烧时间和物理性能在标准范围内;严格进行预热升温并控制挤出机温度;钢丝电感预热温度控制在40～60 ℃;在导丝板钢丝进口方向增加1个倒角;送料架料夹间隙和排线轮上的沟槽宽度适中,可使六角形钢丝圈覆胶不良问题得到有效控制。     

传动带成型机排线控制系统

介绍一种以步进电机为执行机构用于传动带成型机的排线控制系统。该系统采用80C31单片机控制，可根据排线间距的要求计算出步进电机的转速，进行单观根、左／右方向排线，排线间距可调范围大，较传统机械式齿轮换档排线机构操作简单、方便。     

压延钢丝帘布常见问题及控制

分析全钢载重子午线轮胎压延钢丝帘布常见问题,并提出相应控制措施。通过采取稳定压延速度,保证胶料混炼均匀,合理设计胶片厚度、辊距和辊筒挠度变形补偿参数,规范钢丝帘线锭子绕线、导开、拉线和排线等操作及电磁控制尾丝张力等措施,提高钢丝帘布压延工艺控制水平。     

风神轮胎5项成果获专利

正风神轮胎自主研发的5项技术成果获得国家知识产权局实用新型专利授权。这5项专利名称分别为:一种胀长缩式PE膜卷取辊、一种压延刺气泡智能化控制装置、一种新型子午胎钢圈生产线钢丝导开装置、一种零度锭子架钢丝排线装置和一种导开小车制动装置。2017年,风神轮胎120万套成型工段以"创新工作室"为平台,开展"五小"活动和QC活动,组织     

一种玻璃纤维拉丝卷绕用排线轮的专利介绍

从工艺方案、技术设计特征和经济性等3个方面介绍了新型玻璃纤维拉丝卷绕用排线轮.通过对比研究,新型排线轮可方便更换零件,使用寿命相对延长,有效解决了现有技术中存在的玻璃纤维高速拉丝卷绕过程中排线轮磨损快、使用寿命短的问题,排线轮消耗可下降约50％,有效节约了生产成本.     

新型传动带成型机的研制

介绍了新型传动带成型机的研制情况。该设备的机械部分是在C6132机床床身的基础上进行设计的；控制部分包括两路恒张力控制和排线控制系统，张力和排线间距控制精度高，能大大提高产品质量，且操作方便，性能／价格比高。     

拉丝排线喷雾形状对原丝质量的影响

1 由柱形喷雾改扇形喷雾的理由根据拉丝工艺,在拉丝卷取排线过程中,卷取的线速度达3000米/分以上,而排线轴每分钟在行程内往复运动只有四到五次.排线卷取装置如下图1示.     

电缆设备中速度控制在排线系统中的应用

本文介绍了电缆挤塑生产线中收排线架的收线与排线实现速度同步控制的解决方案,此方法满足了排线速度需要不断跟随收线速度的生产要求,并且通过精确显示排线当前位置确定了排线左右换向的时刻,使电线均匀有序的收卷在线盘上。整个系统实现自动控制过程,减少了人工干预,也大大提高了生产效率,生产线也具备了可靠的稳定性。     

GHG-18钢丝合股机的研制

文章介绍了ＧＨＧ－１８钢丝合股机的结构原理,重点介绍了该机的传动换向系统设计,电磁预置计数器的安置,钢丝走线方向的布置与鸟嘴出线器的设计使用     

焦油一次汽化温度计算方法的探讨

利用相平衡原理得出的焦油蒸馏时一次汽化温度的计算方法,其结果与按经验公式的计算结果进行了比较,同时讨论了一次汽化温度与焦油馏分产率及二段蒸发器过热蒸汽用量的关系。     

Techniques for screening adhesives for structural applications

—Due to its chemistry, no structural adhesive system (epoxies, acrylics, etc.) is likely to offer an ideal combination of toughness, strength, moisture resistance, and ambient-temperature curing. Therefore, for effective use of adhesives in primary structures, an engineer must be able to identify adhesives that represent an optimum compromise among the different properties. In this paper, we present techniques for screening high-strength, ambient-temperature-curing adhesives for (1) moisture resistance under sustained loading and (2) fracture resistance in a way that is directly related to joint performance.     

Efficacy for Whitlockite for Augmenting Spinal Fusion

Whitlockite (WH) is the second most abundant inorganic component of human bone, accounting for approximately 25% of bone tissue. This study investigated the role of WH in bone remodeling and formation in a mouse spinal fusion model. Specifically, morphology and composition analysis, tests of porosity and surface area, thermogravimetric analysis, an ion-release test, and a cell viability test were conducted to analyze the properties of bone substitutes. The MagOss group received WH, Group A received 100% beta-tricalcium phosphate (β-TCP), Group B received 100% hydroxyapatite (HAp), Group C received 30% HAp/70% β-TCP, and Group D received 60% HAp/40% β-TCP (n = 10 each). All mice were sacrificed 6 weeks after implantation, and micro-CT, hematoxylin and eosin (HE) staining, and Masson trichome (MT) staining and immunohistochemistry were performed. The MagOss group showed more homogeneous and smaller grains, and nanopores (<500 nm) were found in only the MagOss group. On micro-CT, the MagOss group showed larger fusion mass and better graft incorporation into the decorticate mouse spine than other groups. In the in vivo experiment with HE staining, the MagOss group showed the highest new bone area (mean: decortication group, 9.50%; A, 15.08%; B, 15.70%; C, 14.76%; D, 14.70%; MagOss, 22.69%; p < 0.0001). In MT staining, the MagOss group demonstrated the highest new bone area (mean: decortication group, 15.62%; A, 21.41%; B, 22.86%; C, 23.07%; D, 22.47%; MagOss, 26.29%; p < 0.0001). In an immunohistochemical analysis for osteocalcin, osteopontin, and CD31, the MagOss group showed a higher positive area than other groups. WH showed comparable bone conductivity to HAp and β-TCP and increased new bone formation. WH is likely to be used as an improved bone substitute with better bone conductivity than HAp and β-TCP.     

Demand Increases for New Fungicides for Rice

<正> After June this year China's regions growingmiddle and late rice had widespread blastand sheath/culm blight.Such diseasesplagued 19.2 million hectares.Starting fromJuly the market for new fungicides that cancontrol blast and sheath/culm blight for ricewas more and more active.Makers of traditional pesticides for thecontrol of blast have to contend with fiercecompetition from new pesticides in marketthis year.Kitazine,iprobenfos,isoprothiolane and tricyclazole,oftenused by farmers in the past,are graduallybeing replaced by new varieties with high