FIELD: process engineering.
SUBSTANCE: first, minimum theoretical strains in press crosspiece column barrel resulted from the press full rated operating force. Then aforesaid strains are measured and resulted values are compared to theoretical values. Obtained ratio of the said values allows defining residual portion of initial tightening that is used to forecast joint opening. Aforesaid strains can be measured at the column barrel central cross section. In this case double measured strain is compared with minimum theoretical strain.
EFFECT: possibility to forecast opening of joint between nut and press crosspiece.
2 cl, 4 dwg
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