EBW installations for granular metallurgy
Installations for granular metallurgy are designed for degassing, filling and vibration compaction of granules in capsules with a subsequent sealing applying electron beam welding.
In the installations the following technological operations are performed:
- heating and degassing of products (capsules) to remove adsorbed moisture and gases from the inner and outer surfaces;
- degassing of granules when filling a product;
- vibrocompaction of granules in a product during filling process;
- electron beam welding of the plug, installed in theneck of a product;
- cooling of a filled and sealed product in
The E.О. Paton Electric Welding Institute produces three standard sizes of installations for granular metallurgy: KL168, KL114 and KL139.
Basic characteristics of installation KL139
Description of parameter | Value | |
1 | Overall dimensions of installation, mm: length width height |
7980 4470 3140 |
2 | Weight of installation, t | 10 |
3 | Inner dimensions of vacuum chamber, mm: length width height |
1500 1300 1854 |
4 | Maximum dimensions of product to be welded, mm of a cylinder type diameter height of a disc type (vertical position) |
600 650 |
5 | Weight of product to be welded, kg, max | 1000 |
6 | Depth of weld, mm, not less than | 6 |
7 | Working vacuum in the vacuum chamber, Pa, not worse than | 2,66∙10–3 |
8 | Working vacuum in the gun, Pa, not worse than | 6,67∙10–3 |
9 | Leakage into an empty and clean chamber, Pa·l/s (mm Hg·l/s), not more than | 5 (0,0375) |
10 | Time for evacuation of the vacuum chamber (up to 2.66·10–3 Pa), min, not more than | 30 |
11 | Temperature of product heating, °C, max | 600 |
12 | Amplitude of product vibration, mm, max | 2 |
13 | Range of product vibration frequency, Hz | 5–30 |
14 | Power unit with high-voltage power source of 6 kW/60 kV: accelerating voltage, kV range of welding current control, mA |
60 1–100 |
15 | Cycle of preparation, heating, filling and welding of one product, working shifts | 1–2 |
16 | Technical parameters provided by the Customer: | |
|
380 В, 50/60 Гц | |
|
120 | |
|
5340 | |
|
15–20 | |
|
3 | |
|
5 | |
|
30 | |
|
70 | |
|
+ | |
|
+ |