High Vacuum Aluminum Brazing Furnace

Model:RVB-1111L-AL

Technical Proposal

1.Usage & Features
The RVB-1111L-AL high vacuum Aluminum soldering furnace is horizontal type with front door & back door design. High pumping speed oil diffusion pump groups, full metal shield insulation layers, fast pumping speed & inner clean.
It’s used in aluminum base materials vacuum brazing, finished works keep bright surface & non-oxidation.

The control system was controlled by PLC, Manual or Auto undisturbed switches and alarm function for abnormal condition, high automation and easy operation.

2.Work condition
1.Power : 3 Phase 380V（±6% ）; 50HZ
2.Cooling water: Inlet pressure 0.1～0.3Mpa ; temp≤35℃；
3.Cooling water flow rate: abut 30 M3/h; PH value about 7; Soft water without any sand or inclusion.
4.Working environment: Environment temperature :0℃~35℃; environment
humidity≤95%(25℃); Altitude lower 2000m.
5.Compressed air: Pressure 0.4～0.6Mpa

3.Technical indexes
1.Type: Horizontal type、Front & back door
2.Max charging capacity（650C）: 1500kg
3.Uniform zone size (mm) : 1100W x 1100H x 1100L mm
4.Ultimate vacuum（cold furnace condition）: 6×10-4Pa
5.Pressure rising rate（empty cold furnace condition）: ≤0.3pa／h
6.Pumping speed rate(empty cold furnace condition, timing from main valve open till pumping to 5×10-3Pa): 35 min
7.Maximum design temperature: 850℃
8.Working temperature: 610C -750C
9.Heating rate (empty cold furnace condition to 600C): ≤40 min
10.Temperature uniformity(vacuum, empty, 600C): ±5℃（9 points） 11.Temperature control precision: ±1℃
12.Heating power: 340KW
13.Total power: 450KW
14.Max charging pressure（absolute pressure）: 0.10 Mpa 15.Cooling way: Vacuum cooling，gas cooling

4. Structure & Capability
RVB-1111L-AL vacuum furnace was assembled by vacuum system, shell, heating chamber, control system, cooling system, water cooling system, air charging & degassing system, pneumatic system, temperature measuring system,& feeding.