簧 丝 类 型
|
油淬火回火钢丝
|
碳素弹簧钢丝、琴钢丝
|
不锈钢丝
|
青铜线
|
||
许
用 应 力 τp |
压缩弹簧
|
Ⅲ类
|
0.55σb
|
0.50σb
|
0.45σb
|
0.40σb
|
Ⅱ类
|
(0.40~0.47)σb
|
(0.38~0.45)σb
|
(0.34~0.38)σb
|
(0.30~0.35)σb
|
||
Ⅰ类
|
(0.35~0.40)σb
|
(0.35~0.38)σb
|
(0.28~0.34)σb
|
(0.25~0.30)σb
|
||
拉伸弹簧
|
Ⅲ类
|
0.44σb
|
0.40σb
|
0.36σb
|
0.32σb
|
|
Ⅱ类
|
(0.32~0.38)σb
|
(0.30~0.36)σb
|
(0.27~0.30)σb
|
(0.24~0.28)σb
|
||
Ⅰ类
|
(0.28~0.32)σb
|
(0.24~0.30)σb
|
(0.22~0.27)σb
|
(0.20~0.24)σb
|
||
扭转弹簧
|
Ⅲ类
|
0.80σb
|
0.75σb
|
|||
Ⅱ类
|
(0.60~0.68)σb
|
(0.55~0.65)σb
|
||||
Ⅰ类
|
(0.50~0.60)σb
|
(0.45~0.55)σb
|