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北海封头技术资料
封头标记及订货要领
封头名称、代号及参数
封头制作工程
封头坡口及表示方法
制造范围
冲压封头最小厚度
旋压封头最小厚度
检验标准
封头基本常识
北海封头特点
封头使用注意点
北海封头加工实绩
技术交流
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EHA·DHB冷冲压 (材质:碳素钢、低合金钢)
GB3274 适用材料( Q235B )

  δs
 \
Di

3

4

6

8

10

12

14

16

18

20

22

24

200

2.5

2.5

3.3

3.3

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

 
 
 
 
 
 
 
 
 
 

250

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

 
 
 
 
 
 
 
 
 
 

300

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

 
 
 
 
 
 
 
 
 
 

350

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

400

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

450

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

500

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

550

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

600

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

 
 
 
 
 
 
 
 

650

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

700

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

750

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

800

2.2

2.2

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

850

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

900

2.5

2.5

3.5

3.5

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

950

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.6

8.6

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

 
 

1000

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1050

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1100

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1150

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1200

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1250

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1300

2.5

2.5

3.4

3.4

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1350

2.5

2.5

3.1

3.1

4.6

4.6

6.5

6.5

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1400

2.5

2.5

3.1

3.1

4.6

4.6

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1450

2.5

2.5

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1500

2.5

2.5

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1550

2.5

2.5

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1600

2.5

2.5

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1650

2.5

2.5

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1700

2.0

2.0

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1750

2.0

2.0

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1800

 
 

3.1

3.1

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1850

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1900

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

16.1

16.1

18.0

18.0

20.6

20.6

22.5

22.5

1950

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.3

8.3

10.4

10.4

12.3

12.3

14.1

14.1

15.3

16.1

18.0

18.0

20.6

20.6

22.5

22.5

2000

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.1

8.1

10.1

10.1

11.3

11.8

13.4

13.4

15.3

15.5

17.3

17.3

20.0

20.0

22.0

22.0

2100

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.1

8.1

10.1

10.1

11.3

11.8

13.4

13.4

15.3

15.5

17.3

17.3

20.0

20.0

22.0

22.0

2200

 
 

3.0

3.0

4.2

4.2

6.3

6.3

8.1

8.1

10.1

10.1

11.3

11.8

13.4

13.4

15.3

15.5

17.3

17.3

20.0

20.0

22.0

22.0

2300

 
 
 
 

4.2

4.2

6.3

6.3

8.1

8.1