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A, overview of hydrogen medium frequency induction sintering furnace
1, the hydrogen medium frequency induction sintering furnace Name: hydrogen medium frequency induction sintering furnace
2 , hydrogen medium frequency induction sintering furnace use: for the sintering of tungsten (bar) billet
3 , hydrogen medium frequency induction sintering furnace overall requirements: hydrogen medium frequency induction sintering furnace must ensure safety, reliability, reasonable design, practical, easy to operate and maintain
B, technical parameters selection of hydrogen medium frequency induction sintering furnace
1 , sintered material: tungsten
2 , working temperature: 2 30 0 ° C (insulation 8h )
3 , temperature control accuracy: ± 1 ° C
4 , temperature uniformity: ± 15 ° C in the range of Ф 380 × 700 (acceptance criteria: in the range of the temperature range, a sample is placed in the upper and lower parts for sintering, the density of each sample is measured, the deviation is not more than 0.2g / cm3 )
5 , tungsten crucible size: Ф450 (inside diameter) × 8 50 (high) × 16 (thickness) mm
6 , single furnace sintering capacity: 200Kg
7 , pre-vacuum degree: 10Pa
8 , pre-vacuum time: empty furnace less than 30 minutes
9 , temperature control mode: can automatically heat up, can also be manually operated
10 , feeding and discharging method : using the loading material
11 , working system: three consecutive shifts
12 , power heating capacity: high temperature section 2 0 0 ° C / H
13 , tank temperature: less than 50 °C
C , technical requirements for hydrogen medium frequency induction sintering furnace
1 , induction coil
After annealing with an oxygen-free copper tube, spray epoxy resin insulation treatment to provide a hydraulic test report
2 , crucible
Using Ф450 × 8 50 × 16mm tungsten crucible,
3 , insulation materials
Pure zirconia bricks and high purity alumina, zirconia insulation tiles with 40mm, 30mm alumina, zirconia The bottom of 70mm may be used to ensure the normal at the maximum operating temperature, to provide certificate.
4 , hydrogen medium frequency induction sintering furnace color: the stand is orange, the tank is light yellow, and the electrical part is computer ash.
5 , temperature control
( 1 ) Thermometer: Use tungsten-rhenium thermocouple below 1200 °C
Use dual colorimetric mrisc1000~3000 optical pyrometer above 1200 °C , automatic conversion to temperature
( 2 ) Temperature controller: FP23 temperature controller
( 3 ) Temperature and vacuum recording: Paperless recorder
6, vacuum units
( 1 ) Mechanical pump : 2x-70 rotary vane pump
( 2 ) Solenoid valve : Ddc-tq80 electromagnetic belt inflation valve
( 3 ) Metal vacuum gauge, low vacuum gauge :
7, the electrical control system:
( 1 ) The power supply has overcurrent and overvoltage protection , and the control board adopts the fifth generation control board.
( 2 ) SCR and comes with half set of spare parts
8 , the furnace body:
( 1 ) The inner wall of the furnace is made of 304 stainless steel with a thickness of 8mm ; the outer wall is made of 35# steel, the thickness is 10mm , and the water is cold ( 2 ) the observation hole is easy to clean.
( 3 ) Manual hydraulic lifting and manual rotation of the furnace cover ( self-locking during work )
( 4 ) The furnace body has explosion-proof measures (spring type)
9 , cooling system :
The main cooling portion (SCR, inductor, capacitor) of each branch and return temperature, pressure monitoring, automatic power-off event of the failure
10 , the return water adopts natural backwater
D, hydrogen medium frequency induction sintering furnace composition
Serial number | name | specification | Quantity |
1 | Intermediate frequency power supply | 160KW | 1 set |
2 | IF resonant capacitor cabinet | 1 set | |
3 | sensor | 1 set | |
4 | Sintering furnace body (tank) | 1 set | |
5 | Sintering furnace bench | 1 set | |
6 | Insulation Materials | 1 set | |
7 | Open cover device | 1 set | |
8 | Connecting copper bars and various connecting cables | 1 set | |
9 | Engine organization | 1 set | |
10 | Infrared Thermometer | 1 set | |
11 | Wre5-26 thermocouple | 1 set | |
12 | Paperless recorder | 1 set | |
13 | PID temperature adjustment instrument | FP23 | 2 sets |
14 | Return water tank (with water temperature test table) | 1 set | |
15 | Console | 1 set | |
16 | Hydrogen / nitrogen flow control valve control panel | 1 set | |
17 | Pre-vacuum system | 1 set | |
18 | Sintered tungsten | 1 set | |
19 | Installation and auxiliary materials | 1 set | |
20 | Hydrogen ignition device | 1 set |
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