Processos e equipamentos de fabrico da folha de molibdénio

Item

Process

Equipment

Quality check point

1  Physical and chemical properties

1

Mo billet

2  Measurements of sheet billet

2

Check

3  Surface quality

4  Unit net weight of billet material

3

Hot rolled

Hot mill

1   Measurements (thickness, width)

4

Annealing

200T press machine

2   Surface crack, stratification for two ends

5

Alkali wash

Alkali bath furnace

3   Skew rolling

6

Check

4   Flatness

7

Warm rolled

Four –high cold mill

1  Measurements  (length, width and thickness)

8

Vacuum annealing

Vacuum annealing furnace

2  Side crack, bubbles on surface

9

Check

3   Flatness

10

Cold rolled

Four –high cold mill

1  Density

11

Leveling

W43G series straightened

2  Measurements (length, width,  and thickness)

12

Cut

Hydraulic plate shears

3  Surface quality, bubbles on surface

13

Vacuum annealing

Vacuum annealing furnace    

5  Roll mark, stress ,Flatness

14

Check

6  Quality standard：GB/T3876-2007 or ASTM

15

Package

7  Show certificate of quality