Round Ductile Iron Manhole Cover
Product Specifications:
Specifications and dimensions of round ductile iron manhole covers: ¢300, ¢315, ¢400, ¢450, ¢500, ¢600, ¢650, ¢680, ¢700, ¢740, ¢760, ¢800, ¢830, ¢850, ¢900, ¢1000 (size can be customized according to Party A's needs)
Specifications and dimensions of square ductile iron manhole covers: ¢300*500, ¢400*600, ¢500*700, ¢600*800, ¢700*900, ¢800*1200, ¢900*1400 (sizes can be customized according to Party A’s needs)
Specifications and dimensions of rain grate: ¢300*500, ¢400*600, ¢500*700, ¢600*800, ¢700*900, ¢350*500, ¢400*700, ¢500*500, ¢450*750 ( The size can be customized according to the needs of Party A)
Technical parameter:
1. National Standard: GB1348-2009 Material: QT500-7
2. Spheroidization level 1, spheroidization rate ≥90%.
3. The weight tolerance implements the GB11351-2017 standard
4. Dimensional tolerances shall implement the GB6414-2017 standard.
5. The product load index shall implement the GB/T23858-2009 standard.
6. The material list (manufacturer's spectrum printing) and the spheroidization level and spheroidization rate report must be provided when the product is delivered.
7. The contact surface of B125-E600 well ring and well cover must be processed by machining, and non-metallic filling shall not be used to prevent shock.
8. C250-E600 well ring and well cover must be equipped with anti-displacement and anti-jumping devices
9. Specifications, load levels and quality requirements:
|
serial number |
Specifications (load class) | Quality requirements | Remark |
|
1 |
DN700/A15(15F/KN) |
A15≥45kg/set | 1 kN is equivalent to the weight of an object of 102 kg |
|
2 |
DN700/B125(125F/KN) |
B125≥55kg/set |
|
|
3 |
DN700/C250(250F/KN) |
C250≥65kg/set |
|
|
4 |
DN700/D400(400F/KN) |
D400≥95kg/set |
|
|
5 |
DN700/E600(600F/KN) |
E600≥115kg/set |
Ductile cover pattern identification: the words Qinhuangdao along the outer surface of the well cover, the word water supply in the middle of the outer surface of the well cover, the specification, load and production date of the well cover on the lower edge of the outer surface of the well cover, and the outer surface of the well cover is evenly covered with star patterns.
The content of the nodular manhole cover logo includes the manhole cover specification and load level;
The relevant drawings are subject to the requirements of Party A.
| Equipment Exhibition |
| Casting process production process |
Brief description of the process flow:
Sand mixing: Use sand processing equipment to mix molding sand, water and other raw materials evenly in proportion.
Molding: Sand molds are made by automatic molding machines Melting: Iron is added to an electric furnace for melting.
Pouring: pour the molten iron into the sand mold
Automatic cleaning: Preliminary cleaning of castings is performed by machinery, and shells are removed.
Sand cleaning: Use a shot blasting machine to clean up the molding sand and debris on the casting.
Machining: Drilling, shaping, riveting and other machining of castings using bench drills, punches, etc.
Assemble: Assemble the parts.
Inspection: The castings are inspected through inspection, pressure testing and other inspection processes.
Packaging and storage: After the finished product is packaged, it is put into storage for sale.
| Production equipment name | Number of devices (units) |
Specifications |
| Automatic hydrostatic production line | 2 | / |
| Air Cushion Micro-Shock Compaction Molding Machine | 1 unit | Z148F |
| Intermediate Frequency Electric Furnace | 2 | KGPS-1500-0.5S |
| Intermediate Frequency Electric Furnace | 2 | KGPS-750-0.5S |
| Air Cushion Micro-Shock Compaction Molding Machine | 2 | E149B1 |
| Air Cushion Micro-Shock Compaction Molding Machine | 2 | E148E |
| Automatic hydrostatic production line | 1 item | |
| Fluid Cooling Tower | 3 sets | |
| Air compressor | 1 unit | SA-75 |
| Gas Tank | 1 unit | C-3m3/10kg |
| Refrigeration Dryer | 1 unit | HLD-130 |
| Precision Filter Element | 1 unit | HLD-130 |
| 2t, 3t forklift | 1 each | / |
| Various types of manhole covers and well grate molds | 500 sets | / |
| Bucket elevator | 1 unit | DT100 |
| Pneumatic Tee | 1 | ST100 |
| Electronic Control System | 2 sets | / |
| Level Gauge | 4 | / |
| Open Line Trolley Wheels | 240 | SDXC-002 |
| Air Lift | 8 | / |
| Addendum | 1 batch | / |
| Endless Mold Conveyor | 0.2 set | / |
| return roller table | 1 set | B=1300 |
| 4#belt conveyor | 1 set | Y335 |
| 5#belt conveyor | 1 set | Y335 |
| 6#belt conveyor | 1 set | Y335 |
| Open line trolley system | 1 set | / |
| Single Side Unloader | 1 unit | Y335 |
| Double Side Unloader | 1 unit | / |
| Cat Head Hanging | 8 | / |
| 1#belt conveyor lengthened | 1 unit | / |
| Vibratory shakeout | 1 unit | L252 |
| Soundproof room | 1 room | / |
| Pneumatic Control Valve Box | 4 | / |
| Cleaner | 2 | / |
| Dust Collector | 2 | LZZ110 |
| Case pusher | 5 units | / |
| Poke box machine | 2 | / |
| Belt Feeder | 2 | / |
| Container lifter | 1 unit | / |
| Motorized roller table | 1 set | B=1100 |
| Return roller table (1) | 1 set | / |
| Return roller table (2) | 1 set | / |
| Closing roller table | 2 sets | / |
| Soundproof room | 1 room | / |
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