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FORMULA
Estiraje total = desarrollo productor / desarrollo alimentador
Estiraje total = 2474.01 / 179.88 = 13.75
Estiraje parcial
Est 1-2 = 821.05 / 179.88 = 4.56
Est 2-3 = 211.94 / 821.05 = 0.25
Est 3-4 = 2474.01 / 211.94 = 11.67
Estiraje total = 13.30
Del siguiente esquema encontrar el desarrollo en mts, yds, pug. y estiraje total, parcial y comprobación del estiraje
FORMULA
Desarrollo = (3.1416) (Diametro) ( n)
D1 = (3.1436) ( 1 1 / 4) (6985 rpm) = 27430´´/min
= 761.94yds/min
= 696.72mts/min
D2 = (3.1416) (1 1/ 8) (17462.05 rpm) = 61717.71´´/min
= 1714.38yds/min
= 1567.63mts/min
D3 = (3.1416) (1 1/2) (13642.57 rpm) = 64289.24´´/min
= 1785.81yds/min
= 1632.94mts/min
D4 = (3.1416) ( 1 1/8) (12789.91 rpm) = 45203.37´´/min
= 1255.64yds/min
= 1148.16mts/min
D5= (3.1416) (1 1 / 8) (42075.13 rpm) = 113451.64´´/min
= 3151.43yds/min
= 2881.67mts/min
D6 = (3.1416) (2 6 / 8) (17476.76 rpm) = 150988.72´´/min
= 4194.3yds/min
= 3835.12mts/min
D7= (3.1416) (2´´) (19661.36 rpm) = 123536.25´´/ min
= 3431.56yds/min
= 3137.82mts/min
D8= (3.1416) (1 1/2) (39322.72 rpm) = 185304.38´´/min
=5147.34yds/min
=4706.74mts/min
D9= (3,1416) ( 1 1 / 8) (88.04 rpm) = 312700.86´´/min
= 8686.13yds/min
= 7942.61mts/min
ESTIRAJE TOTAL
Formula
Estiraje total = desarrollo productor / desarrollo alimantador
Desarrollo
Estiraje total = 312700.86 / 27430.09 = 11,39
ESTIRAJE PARCIAL
Est. 1-2 = 61717.71´´/min / 27430.09´´/min = 2.25
Est. 2-3 = 64289.24´´/min / 61717.71´´/min = 1.04
Est. 3-4 = 45203.37´´/min / 64289.24´´/min = 0.70
Est4-5 = 113451.64´´/min / 45203.37´´/min = 2.50
Est 5-6 = 150988.72´´/min / 113451.64´´/min = 1.33
Est 6-7 = 123536.25´´/min / 150988.72´´/min = 0.81
Est 7-8 = 185304.36´´/min / 123536.25´´/min = 1.50
Est 8-9 = 312700.86´´/min / 185304.38´´/min = 1.68
Estiraje total = (2.25) (1.04) (0.70) (2.50) (1.33) ( 0.81) (1.50) ( 1.68) = 11.11
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