scholarly journals Cambering of Four High Cold Mill with the View of Reducing Roller Ends Contact and Preventing Complex Waves

Engineering ◽  
2011 ◽  
Vol 03 (04) ◽  
pp. 359-363
Author(s):  
Zhenhua Bai ◽  
Hongxin Si ◽  
Xiaodong Shi ◽  
Qingtian Zhou
Keyword(s):  
Complex Waves ◽  
Cold Mill

Thyristor-supplied tandem cold mill

1968 ◽  
Vol 115 (10) ◽  
pp. 1513
Author(s):  
D.W. Draper ◽  
R.J. Goodridge
Keyword(s):  
Tandem Cold Mill ◽  
Cold Mill

Mastication of Rubber. II. Interpolymerization of Natural Rubber and Neoprene on Cold Milling

1956 ◽  
Vol 29 (2) ◽  
pp. 427-437
Author(s):  
D. J. Angier ◽  
W. F. Watson
Keyword(s):  
Free Radicals ◽  
Natural Rubber ◽  
Small Molecules ◽  
The Other ◽  
Polymer Molecules ◽  
Commercially Important ◽  
The Individual ◽  
Cold Mill ◽  
General Method ◽  
Butadiene Styrene

Abstract The softening of elastomers on cold milling results from scission of the polymer molecules by the applied shearing forces. The ruptured chains are free radicals, which can undergo mutual combination, interaction with oxygen and various additives, and branching (grafting) on to other polymer molecules. A general method of producing graft and block interpolymers between elstomers is therefore indicated, namely, to cold-mill the polymers together in the absence of small molecules which can terminate the polymeric radicals in order that the radicals may cross-terminate or graft onto the polymer molecules of the other type. A survey of several pairs of the commercially important elastomers, natural rubber, butadiene-styrene, Neoprene, and butadiene-acrylonitrile, has shown that cold milling does effect interlinking. Detailed results for the rubber-Neoprene system are reported in this communication. Experimental verification of polymer interlinking was obtained from the solubility properties of the milled elastomers. Cold milling of Neoprene under nitrogen produces gel, whereas of natural rubber does not, but the milling of mixtures gives gels containing natural rubber. Also, the solubilities and precipitation of the milled mixtures cannot be accounted for by these properties of the individual polymers. Finally, Neoprene-natural rubber mixtures, after and not before cold-milling, can be cross-linked by magnesium oxide, with rubber bound into the vulcanizate.

Complex waves in a circular dielectric waveguide

1978 ◽  
Vol 21 (9) ◽  
pp. 926-929
Author(s):  
T. N. Getmantseva ◽  
S. B. Raevskii
Keyword(s):  
Dielectric Waveguide ◽  
Complex Waves ◽  
Circular Dielectric Waveguide

Research of Virtual Inertial Control in AC Driver System of Tandem Cold Mill

2021 ◽  
Author(s):  
Jin Wang ◽  
Dapeng Zheng ◽  
Qian Zhang ◽  
Hailong Li ◽  
Chunyi Zhu
Keyword(s):  
Inertial Control ◽  
Tandem Cold Mill ◽  
Cold Mill

Operational Experience With The New Harold E. Saunders Maneuvering And Seakeeping (MASK) Basin Directional Wavemaker

2017 ◽  
Author(s):  
John G. Hoyt ◽  
Steven R. Turner ◽  
Herman J. Moeller ◽  
Scott A. Carpenter ◽  
Miguel R. Quintero
Keyword(s):  
Lessons Learned ◽  
Virtual Space ◽  
Operational Experience ◽  
Regular Waves ◽  
Computer Screen ◽  
Complex Waves ◽  
Naval Surface Warfare ◽  
New System

The Naval Surface Warfare Center, Carderock Division replaced their 21 pneumatic type wavemaker domes with a 216-paddle directional wavemaker in the fall of 2013. This wavemaker is capable of producing regular waves at oblique angles to the wave banks as well as long crested and short crested irregular model seas. Another powerful capability of the new system is the ability to preview the commanded waves in 3D virtual space on the computer screen. The new directional wavemaker facility has been in operation for four years. Mixtures of capabilities exceeding the original requirements as well as unforeseen problems were encountered. Based upon the operational experience gained in the last four years lessons learned are presented. Going from 21 domes to 216 individual paddles has adverse consequences on maintenance and reliability. That in and of itself is just a consequence of requiring a more complex machine to make more complex waves – not really good or bad. Despite the initial concerns this wavemaker has proven to be reliable, easily maintainable and when required, easily repairable.

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