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This shows the digit tubes. Note that the segment pattern is not the normal 7 segment one.
Also, you can see a single filament wire in the digit tubes and 2 in the annunciator tube. The latter has twice the filament voltage of the former as a result. The filament circuit is 2 parallel chains of filaments, one consisting of 5 digit tubes in series, the other of the remaining 3 digit tubes and the annunciator tube.
Based on original designs of the end customer, Galbiati has produced and supplied to a known Indian steel mill two spare segments for a continuous casting plant.
The thickness of the casting sheet is precisely calibrated by special high pressure hydraulic cylinders fed by stainless steel pipes mounted on the segments.
Most of the mechanical, hydraulic components of the segments for continuous casting have been purchased by the most qualified European manufacturers.
A complete pre-assembly of the segments for continuous casting was carried out at the assembly department of Officine Galbiati and a final test was carried out with the full satisfaction of the Indian end customer’s inspector.
A special maritime packaging has been designed and manufactured at the Galbiati workshop to allow the shipment of each segment for continuous casting completely assembled and therefore ready for quick assembly on site.
A technical and quality manager of the Galbiati staff was requested by the Indian customer for on-site supervision in order to reconfirm the maximum performance and the good operation of the segments for continuous casting.
This was a real failure. First time out shooting with a newly modified (H-alpha) Nikon Z7. I did not know the camera sufficiently, so my attempted custom settings of ISO 1600 or 2000 were replaced by the camera selecting auto ISOs of 160 and 250-280 - DOH!
Despite the major faux pas, I stacked these in StarrySkyStacker. The waxing half-moon was still up of course, so overall viewing remained compromised.
11 light frames at a mere ISO250!
(File: ISO250_Z7A1916-26-Median.tif)
Hidden somewhere in the middle of concrete and cobblestones, protected by an ugly metallic cylinder closed by a strong grid, what remains of a centuries-old well. People from then may be chocked if they could see what it looks like now...
Basandosi su disegni originali del cliente finale, Galbiati ha realizzato e fornito a una nota acciaieria indiana due segmenti di ricambio per un impianto di colata continua.
Lo spessore del foglio di colata è calibrato con precisione da cilindri idraulici speciali ad alta pressione alimentati da tubazioni in acciaio inossidabile montate a bordo dei segmenti. La maggior parte dei componenti meccanici, idraulici dei segmenti per colata continua è stata acquistata dai produttori europei più qualificati.
Un completo pre-assemblaggio dei segmenti per colata continua è stato eseguito presso il reparto montaggio delle Officine Galbiati e un test di collaudo finale è stato effettuato con la piena soddisfazione dell'ispettore del cliente finale indiano.
Uno speciale imballaggio marittimo è stato progettato e fabbricato presso l'officina Galbiati per consentire la spedizione di ogni segmento per colata continua completamente assemblato e quindi pronto per un rapido montaggio in loco.
Un responsabile tecnico e di qualità dello staff Galbiati è stato richiesto dal cliente indiano per una supervisione in loco al fine di riconfermare il massimo delle prestazioni e il buon funzionamento dei segmenti per colata continua.