一般折彎R=0, θ=90°)
$ M/ ]& ~: {0 h5 d4 w6 }
6 m5 x, S# h7 c8 T1 e$ kL=A+B+K
7 y; o& I, p r7 p1. 當(dāng)0¢T£0.3時(shí), K=0+ K1 i2 P2 a5 b% J
2. 對于鐵材如GI,SGCC,SECC,CRS,SPTE, SUS等)2 @& v, {* V4 m, {
a.
7 Y3 U4 G$ {- @+ K/ M當(dāng)0.3¢T¢1.5時(shí), K=0.4T
L1 B" \ X6 D! B; S: ob. 當(dāng)1.5£T¢2.5時(shí), K=0.35T* H) e* v: ~: [* j1 T [( Y
6 i, g3 p- h( I' w* L# b8 ~: [
c. 當(dāng) T/2.5時(shí), K=0.3T# r) M6 g; y2 ~
3. 對于其它有色金屬材料如AL,CU:
7 F3 ?5 J" t) l8 E+ Q% j當(dāng) T$0.3時(shí),
7 g7 P% C) A& y$ u- vK=0.5T
) x1 A& q V2 x, I1 Y/ v* P注: R£2.0時(shí), 按R=0處理.; \0 t# s; v3 M. a
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