|
|
| |
|
How to use Springs?
|
|
1. First of all, calculate the maximum stroke you need. |
|
2. Give a pre-pressure before you install the spring to enable the spring has inner pressure within, if otherwise, the spring will decrease its life. General pre-pressure is 3~5% of total length. |
|
3. The spring should have a screw and barrel. |
|
4. If the rammer is grinded, the spring will increase the shrinkage, don’t forget to grind the pad to keep it in original shrinkage. |
|
|
|
The
relationship between using frequency of mold
spring and shrinkage ratio
|
| Working
Times Description |
1
million
(% of free length) |
0.5
million
(% of free length) |
0.3
million
(% of free length) |
Max.
Description
(% of free length) |
| Lingtest
Load |
40.0% |
45.0% |
50.0% |
Approx.
58.0% |
| Light
Load |
32.0% |
36.0% |
40.0% |
Approx.
48.0% |
| Medium
Load |
25.0% |
28.0% |
32.0% |
Approx.
38.0% |
| Heavy
Load |
19.0% |
21.0% |
24.0% |
Approx.
28.0% |
| Super
Load |
16.0% |
18.0% |
20.0% |
Approx.
24.0% |
|
| |
|
|
