On-line measurement of orientation development in the high-speed melt spinning process

1999 ◽  
Vol 39 (12) ◽  
pp. 2349-2357 ◽  
Author(s):  
Takeshi Kikutani ◽  
Kazuhito Nakao ◽  
Wataru Takarada ◽  
Hiroshi Ito
2013 ◽  
Vol 821-822 ◽  
pp. 149-152
Author(s):  
Xin Wen ◽  
Sheng Lin Yang ◽  
Guang Li

The online temperature detections of fiber along the spinning line should be the important means for the precise controlling of fiber higher order structures as well as fiber-final performance. In this paper, a method of measurement fiber temperature has been introduced which mainly use the instrument of monochromatic infrared thermometer to measure fiber temperature in the melt-spinning processes. Due to the probe field of view of monochromatic infrared thermometer being much larger than the fiber diameter, monochrome infrared thermometers can't be used to measure temperature of fibers directly, the measurement results is an average between the fiber and backgrounds, which can't be used to indicate the temperature of fibers directly and have to calibrated. The calibrated results of monochromatic infrared thermometer are compared to the measurement results of infrared thermography. It has been found that the on-line measurement with infrared thermometer could promise high-speed and highly reliable temperature testing for the fibers.


1994 ◽  
Vol 50 (9) ◽  
pp. P529-P536 ◽  
Author(s):  
TAKESHI KIKUTANI

1991 ◽  
Vol 43 (8) ◽  
pp. 1511-1520 ◽  
Author(s):  
J. F. Hotter ◽  
J. A. Cuculo ◽  
P. A. Tucker

2004 ◽  
Vol 2004.42 (0) ◽  
pp. 143-144
Author(s):  
Masayuki HAMADA ◽  
Satoru HARAMI ◽  
Katsuju IGARI ◽  
Yoshiyuki AOYAMA

1991 ◽  
Vol 35 (B) ◽  
pp. 1211-1218
Author(s):  
Hiroharu Kato ◽  
Kiyotaka Imai ◽  
Hideya Tanabe

AbstractA new method, for the on-line determination of the composition and the coating weight of galvannealed (Zn-Fe-alloy-coated) steel sheets using monochromatic incident x-rays with two optical systems, is described. In the case of galvannealed steel sheets, it is difficult to determine the composition and the coating weight precisely by simple XRF, because fluorescent x-rays of Iron are emitted not only from the coating layer but also from the underlying steel sheets. We have developed an on-line analyzer with two optical systems which are different in incident angles, take-off angles and wavelengths of monochromatic incident x-rays. We determine the composition and the coating weight by solving simultaneous equations of the data which we derive using two optical systems. Using monochromatic x-rays enabled us to obtain high precision with high speed. We considered en-or factors in on-line measurement such as statistical error or fluctuation of the distance between the sensor head and steel sheets. This on-line analyzer has been applied to the continuous galvanizing line in our Fukuyama works successfully. As a result, we have been able to significantly improve product quality.


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