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as a new crosshead had been ordered, metalock inspected the repaired component on a weekly basis until it arrived.
dato che era stato ordinato un nuovo cappello, metalock ispezionò l’elemento riparato settimanalmente fino a quando fu consegnato.
however, during the cooling process following completion of the weld, two new cracks appeared on the side of the crosshead from top to bottom.
purtroppo però, durante la fase di raffreddamento successiva alla aldatura, comparvero due nuove incrinature su un lato del cappello, dall’alto verso il basso.
the large sizes of piston rods make it especially difficult to obtain proper tightness. since tightening the crosshead nut requires going through an inspection door there is little room to maneuver.
la larghezza dei pistoni rende particolarmente difficile ottenere un’opportuna tenuta. siccome il serraggio del crosshead richiede il passaggio attraverso un portello d’ispezione piuttosto piccolo, c’è poco spazio di manovra.
one particular application, the crosshead jamnut, is well known for the difficult and unsafe bolting methods used to attempt to tighten it. common methods include using sledgehammers and overhead cranes.
un’applicazione particolare è il crosshead ed è noto per il complicato ed insicuro metodo di serraggio.
however, this was never used, such was the effectiveness of the metalock repair. eventually, the forging press was sold to an overseas company with the repaired crosshead intact and the new as a spare.
però, data l’efficacia della riparazione metalock, il nuovo cappello non fu mai utilizzato.
casting repairs to a cracked forging press crosshead that metalock engineering carried out for somers forge were originally designed to be of a temporary nature while the company waited for a new crosshead to be delivered. in the event, the repair was so effective that the new component was never used.
alla fine però la riparazione si rivelò talmente efficace che il nuovo componente non fu mai utilizzato.