I. General Description of the Production Line.
1 Equipment working conditions and main technical parameters.
1.1 Working system: 300 days / year two-shift work system 11h / shift
1.2 Power supply: three-phase AC 380V ± 10%, frequency: 50Hz ± 2%.
1.3 Workshop gas supply source: natural gas pressure 0.05-0.08MPa; low heat ≥ 8200Kcal / m.
1.4 Compressed air: 0.5-0.6MPa.
1.5 Heating method: natural gas heating.
1.6 Production beat and process parameters.
1.6.1 Beat time 25min/frame
1.6.2 Solid solution heating up 75min±10min+holding 330min±10min, taking 16 stations.
1.6.3 Aging heating 50min±10min+holding 280min±10min, take 14 stations.
1.6.4 Three shifts continuously, the equipment can be moved rate of three 98%; equipment can be moved rate = (operating time - failure time) / operating time) X100%. (operating time - downtime)/operating time) X 100%.
1.7 Size of material tray: L1300XW2180XH1800mm.
1.8 Quenching transfer time (from the opening of the furnace door to the material frame completely into the water time): ≤ 15s.
1.9 Cooling process requirement after aging: use strong wind to cool to below 50C unloading. Cooling time is not greater than the production line transportation
The cooling time is not greater than the production line transportation beat time.
1.10 The main components of the equipment are arranged in a double-layer zigzag pattern, the solid solution furnace is on the plane of the workshop foundation below, and the aging furnace is on the plane of the workshop foundation above.
The solid solution furnace is on the plane of the workshop foundation below, and the aging furnace is on the upper part, adopting the steel structure support platform as the installation foundation, and the detailed structure refers to the program diagram.
1.11 Process flow: In addition to the manual operation of loading and unloading process, the rest of the entire heat treatment process is automatically controlled.
a. The X-ray station associates the workpiece with the frame and then feeds it - the incoming material identification is divided into paper 2D code and frame code tags.
b. Manually load the incoming material frame onto the loading roller conveyor in front of the solid solution furnace of the T6 production line, and then manually and automatically scan the code for identification.
Manual identification using a handheld scanning gun to identify the paper two-dimensional code, automatic identification using the camera visual identification system (automatic identification function for the traceability system function does not apply).
Recognition function for the traceability system function is not in the scope of supply of this agreement, the two sides set up a separate contract), the system locks the associated
The system locks the associated two-dimensional code.
c. After code recognition, the system determines that the process conditions are met after automatic feeding - the system records the time and temperature of the material rack into the solid solution furnace.
temperature.
The material is heated in the solid solution heating zone --- the solid solution heating zone has 2 temperature zones and 3 material positions in total, and the operation beat time is 25min.
25min, total heating time of about 75min, the temperature of the process requirements set temperature 538C (temperature and time adjustable with the process requirements).
The temperature is set at 538C (the temperature and time can be adjusted according to the change of process requirements), and the system records the temperature and time of each zone.
After the material passes through the solid solution heating area, the front center door opens, and the material automatically flows to the solid solution holding area for heat preservation - solid solution
The total number of holding area is 7 temperature zones and 13 material positions, the operation beat time is 25min, the total holding time is about 330min, the temperature is 538ºC, the temperature is 538ºC.
degree for the process requirements set temperature 538 ºC (temperature and time adjustable with the change of process requirements), the system records the temperature and time of each zone.
The system records the temperature and time of each zone.
d. After the end of the holding process, the discharge furnace door to open the material quickly out of ≤ 15s into the quenching tank quenching, quenching end of draining 5min (quenching)
Drainage 5min (adjustable) - record the material transfer time ≤ 15s; water level in the tank is higher than the minimum water level line, the minimum water level line is 200mm above the material frame.
Water level line is higher than the material frame 200mm, the water level is lower than the minimum water level line prohibit the discharge of materials; sink temperature to meet the requirements of the process temperature
The temperature of the water tank is adjustable from 35-90°C, and the system records the temperature, time and water level.
After quenching, the material is transferred to the lifting roller conveyor frame, and ascends to the aging furnace floor through the roller conveyor frame - Visual camera system
Scan the code to confirm whether the solid solution technical parameter information of the workpiece and the technical parameter information in the water tank meet the process requirements.
and upload to the system host for storage.
e. The material is transferred to the front feeding roller conveyor of the aging furnace through roller conveyor, and the visual camera system sweeps the code to record the time.
The system will automatically feed the material after the system determines that the process time is satisfied - the system records the time and temperature of the material frame into the aging furnace.
The material is heated in the aging heating zone - the total number of aging heating zone is 2 temperature zones and 2 material positions, and the running beat time is 25min.
The total heating time is about 50min, and the temperature is 170°C (the temperature and time can be adjusted with the change of process requirements).
The temperature is set at 170°C (the temperature and time can be adjusted according to the change of process requirements), and the system records the temperature and time of each zone.
f. After the material passes through the aging heating area, the front center door opens, and the material automatically flows to the aging heat preservation area for heat preservation --- Aging
The heat preservation area has a total of 6 temperature zones and 12 material positions, the running beat time is 25min, the total heat preservation time is about 280min, and the temperature is 170ºC.
The temperature is set at 170ºC (the temperature and time are adjustable with the change of process requirements), and the system records the temperature and time of each zone.
The system records the temperature and time of each zone.
g. After the end of the holding process, the discharge furnace door to open the material quickly out of the cooling roller conveyor bit for cooling ---
--The visual camera system sweeps the code to confirm whether the aging technical parameter information of the workpiece meets the process requirements, and uploads it to the system host for storage.
h. material through the front elevator will be to the first floor, transferred by the transfer car to the fluorescent line manual unloading, the transfer car back, the
The next material shelf into the end of a cycle process. The temperature and time of heat treatment can be continuously adjustable, can be set and controlled by thermostat and PLC, and can continuously record the temperature curve of the furnace chamber.
Communication system: the equipment is equipped with the storage of actual parameters of heat treatment, and supports the networking of servers and data reading.
1.12 Heat treatment process as follows.
Temperature 538C±5C(adjustable)
ºC 170C±5C(adjustable)
30-80ºC±5ºC
Water cooling
Air-cooled to 50C
75min 330min(adjustable) 50min280min(adjustable) Time(min)
Solution Furnace TDS
| No. |
Item |
Data |
| 1 |
Heating Method |
Natural Gas 8400Kca1/Nm |
| 2 |
Max. fuel consumption |
140Nm/h |
| 3 |
Average natural gas consumption |
80Nm/h |
| 4 |
No. of work stations |
16 Nos. |
| 5 |
Loading capacity |
2000Kg/Basket |
| 6 |
Number of burners |
10 Nos. (2 burners in zone 1, 1 burner in each of the remaining zones) |
| 7 |
Temp. zone |
Cu |
| 8 |
Effective space of furnace chamber |
25550mmX2180mmX1800mm |
| 9 |
Instrument temp. control level |
0.1 level |
| 10 |
Furnace temp. uniformity |
538 ºC ± 5 ºC (adjustable) |
| 11 |
Temp. control precision |
1.5ºC |
| 12 |
Empty furnace heating time |
<2h |
| 13 |
Number of circulating fans |
9 |
| 14 |
Furnace roller conveyor drive motor power |
2.2KW*2 sets + 1.1KW*13 sets + 5.5Kw*1 set |
| 15 |
Circulation fan power (reference) |
7.5KW*2 sets +11KW*7 sets |
| 16 |
Combustion fan power (reference) |
15KW |
| 17 |
Quenching transfer time |
<15S |
| 18 |
Quenching time |
5min (adjustable) |
| 19 |
Fiber lining thickness |
280mm |
| 20 |
Furnace surface temperature |
≤ room temperature +30°C |
| 21 |
Door lift |
Motorized lift |
| 22 |
Pressing method |
Self-weight mechanical pressing |
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