SPECIAL PRODUCTS
Productos especiales ofrecidos por Muelles CROM fuera de normativa.
Relación de arrollado > 25
Inducción al pandeo S/Lo = Ra/2
Factor de Wähl > 1,3
Dm = 25±0.2 mm d = 4.5±0.045 mm w = 5.556 k = 1.26
n = 15.48 nt = 17.48 nt-n = 2
Estremos : cerrados sin amolar
Tratamiento : Muelle no granallado ni TGR
R = 16.67 N/mm fe = 10027/min e1 = 3.84mm e2 = 0.44mm
L dr = 1373 mm m = 171.4 kg / 1000 pcs.
tan alpha = 0.0972 L0/D = 5.12 s2/L0 = 0.281
EN 10270-2 VDC Templado al aceite (Material para muelle de válvula)
DIN 17223-2 VD Oteva31
G = 80000 N/mm² t = 80°C G80 = 78667 N/mm²
tauz = 787 N/mm² tauhz = 339 N/mm² Rm = 1406 N/mm²
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Largo mm Desplazamiento mm Fuerza N tau N/mm² S
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L0= 128.00±1.76
L1= 104.00 s1= 24.00 F1= 400.00±33.2 tauk1= 352 2.24
sh= 12.00 Fh= 200.00 taukh= 176 1.93
L2= 92.00 s2= 36.00 F2= 600.00±35 tauk2= 528 1.49
Ln= 94.76 sn= 33.24 Fn= 554.08 taukn= 487 1.62
Ln= 94.76 sn= 33.24 Fn= 554.08 taun = 387 2.03
Lc= 79.46 sc= 48.54 Fc= 808.92 taukc= 712 1.11
Lc= 79.46 sc= 48.54 Fc= 808.92 tauc = 565 1.39
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(S = tau perm. / tau y)
Seguridad contra el pandeo acc. DIN 2089 part 1 rel. 12/84
Aviso: L2 Aviso: Si0 < d
Aviso: F2 max > Fn !
