丝头

采用一维多取向小角X射线散射研究了聚丙烯腈细流在凝固过程中，凝固浴温度、浓度以及喷丝头拉伸比对初生纤维中微孔结构形态的影响。

The effects of coagulation temperature and concentration and draw down ratio on the microcellular structural morphology of as-spun PAN fiber were studied during coagulation process by small angle X-ray scattering .

在高速纺丝中，控制PTT初生纤维取向结构的关键是喷丝头拉伸比，决定结晶结构的关键是卷绕速度。

Spinneret draft ratio played a crucial role in controlling the orientation structure of as-spun PTT fiber during high-speed spinning .

基于UV-LIGA技术的微孔异形喷丝头制备

Fabrication of profiled microfiber spinneret based on UV-LIGA technology

ECDP熔体喷丝头组件压力降研究

Study on the ECDP Melt Spinnerette Unit Pressure Descension

PLC控制系统可实现功能顺序控制、剪切次数计数、显示电机转速等功能；验证实验表明：铺丝头试验台能够可靠地完成纤维的剪切、压紧和重送主要功能，达到了预期要求。

PLC control program can achieves the function sequence control , cutting counting and showing the motor speed . Validation experiment shows that the fiber placement head devised can reliably complete the main function of cutting , pressing and retransmission which achieves the desired requirements .

研究了干-喷湿纺聚丙烯腈（PAN）初生纤维的喷丝头拉伸比和三级拉伸（空气拉伸、DMF浴拉伸、热水和沸水拉伸、干热拉伸）工艺中各拉伸比对纤维性能的影响。

The effects of the jet stretch ratio and draw ratios of three-stage drawing including air drawing , DMF bath drawing , hot water and boiling water drawing and dry-hot drawing on the properties of PAN fiber were studied in dry-jet wet spinning .

研究发现：在一定的电压和喷丝头与接收屏的距离（C-D）下，7wt%是具有良好可纺性的临界浓度。

7wt % was a critical concentration of SF solution for better spinnability at a special vol - ( tage ) and distance from the tip of capillary to the collector screen ( C-SD ) .

主要改进是在标准静电纺丝机的喷丝头上增加了气流喷射系统。对喷丝头重新设计。

A new spinneret combined a gas jet orifice was designed .

人们不会认为绝缘的金属丝头是有电部件。

Insulated lead wires are not to be considered to be live parts .

喷丝头组合花板的真空熔炼

Vacuum Melting of Composition Graining Board with Spinning Nozzle

喷丝头是化纤纺织机上的关键部件。

The tantalum spinneret is a key part in chemical fibre silk spinning_machine .

喷丝头冷藏技术在醋酸纤维生产中的应用研究

Application of Refrigerated Spinnerets in Acetate Fiber Production

钽喷丝头电化学处理工艺研究

Development of Electrochemical Process of Tantalum Spinneret

钽喷丝头的熔盐阳极氧化

Anodization of Tantalum Spinneret in Melting Salt

金铂喷丝头中铂的测定

Determination of Platinum in Gold-Platinum Spinning Nozzle

钽喷丝头表面改性技术的研究

Study on surface modification of tantalum spinneret

分析喷丝头拉伸比对纤维的聚集态结构及性能的影响。

And also effect of spinneret draw-ratio on fibre aggregated structure and the properties was discussed .

一般喷丝头细孔的数量决定了纱中长丝的根数。

Usually the number of holes in the spinneret determines the number of filament in the yarn .

工业化试验表明：当喷丝头负拉伸率为-73%时，纤维可纺性达到最佳状态。

The practical experiments showed that fiber spinnability was optimized when spinneret negative draw ratio was - 73 % .

按照铺放8路纤维的要求，将各功能模块合理组合成完整的铺丝头结构。

The fiber placement head is devised through combining the functional devices reasonably following the idea of 8 fibers placement .

当膜液出喷丝头的剪切速度达到某一极限值时（不同膜液体系，此极限值不同），获得了压密性能优良的聚砜中空纤维超滤膜。

Hollow fiber membranes with excellent compressive strength were obtained when the spinning rate of the dope reached a certain limit .

粘胶化纤喷丝头连接板材料的研制介绍了一种新研制的粘胶铝板复合机的结构特点，研制过程及其功能。

This article tells how to design a new kind of viscose aluminum board compounding machine , its process and functions .

探讨了喷丝头拉伸比，空气层长度，拉伸条件对纤维结构性能的影响。

The effects of draw-down ratio , air-layer length , drawing conditions on the structure and properties of the fiber were discussed .

本文用微分几何理论推导出纤维缠绕复合材料压力容器的非测地线缠绕轨迹、包角方程及绕丝头运动方程。

Non geodesic trajectory mandrel rotation and payout eye motion equations for fiber reinforced composite pressure vessels are derivated by theory of differential geometry .

结果表明：提高喷丝头拉伸比可明显地降低初生纤维的线密度，提高强度；

The results showed that the increase of jet stretch ratio could greatly decrease the linear density of as-spun fiber and improve the strength ;

喷丝头拉伸比为-36.7%-10%时，微孔尺寸和取向角都增大。

Both the microcellular dimension and the orientation angle were increased when the draw down ratio was elevated from - 36.7 % to 10 % .

纺丝液经过滤后，借助于泵的压力穿过喷丝头的细孔。

The concentrated sodium hydroxide is filtered through a pressure filter . The solution is filtered and pumped through the fine holes of a spinneret .

聚甲醛纤维是由高速附近的喷丝头的激光照射加热熔融纺丝获得的，同时变薄的行为进行了检查，在线测量。

Polyoxymethylene fibers were obtained by high-speed melt spinning with laser irradiation heating near the spinneret , meanwhile the thinning behavior was examined by on-line measurement .

在缠绕过程中，为了保证缠绕线型的稳定，导丝头与芯模间的距离要保持不变。

In winding process , in order to ensure the stability of the winding line , the distance between the mandrel and filar guide will remain unchanged .

文章介绍了一般性纬缩疵点和纬丝头端缠绕形成的缩纬疵点的产生原因和防治措施。

In this article are introduced the forming causes of normal weft loop and weft loop caused by the interlaced filament ends and the measures to prevent them .