Pump Manufacturing Solutions
Pump Manufacturing Process
Raw Materials And Incoming Materials Inspection
- Verify alloy grade (cast iron/SS/duplex/Hastelloy), dimensions, casting defects, and heat‑treat state; sample chemistry and hardness for the first lot.
- Optical spectrometer, universal testing machine, metallographic microscope, CMM, ultrasonic flaw detector, hardness tester.
Casting/Forge Preparation And Roughing
- Remove risers/flash, shot‑blast, then rough‑turn/mill reference faces and datums for housing, cover, and shaft.
- Swing frame grinder, shot blaster, CNC lathe, milling machine, machining center, mill‑turn center.
Benchmarking And Critical Boring
- Establish precise datums and finish critical bores (bearing seats, seal chambers, volute references) with on‑machine probing compensation.
- Horizontal boring milling machine, precision jig boring machine, on‑machine probe, precision fixturing system.
center.
Impeller Machining And Dynamic Balancing
- Mill/turn vane profiles and key features, then perform dynamic balancing to ISO G2.5 or better.
- 5‑axis machining center or mill‑turn, CNC lathe, dynamic balancing machine, profilometer.
Shaft Machining And Keyway/Bearing Seats
- Finish OD journals, threads, and keyways, ensuring runout and concentricity for rotor assembly.
- CNC lathe, OD grinder, keyway broaching machine, thread grinder, CMM.
Heat Treatment
- Apply quenching/tempering, solution treatment, or aging per material to achieve target strength and stability.
- Heat treatment furnace, quench tank, tempering furnace, solution/aging furnace.
Precision Grinding And Geometry Control
- Grind bearing seats, seal faces, and reference planes to meet concentricity, perpendicularity, and flatness requirements.
- OD grinder, ID grinder, surface grinder, lapping/flatness gauge, dial test instruments.
Surface Engineering And Wear/Corrosion Protection
- Apply laser cladding or HVOF on wear zones (shaft sleeves, seal areas) and polish to spec; optional hardening/coatings for corrosion resistance.
- Laser cladding machine, HVOF system, polishing machine, surface finishing machine, hardness tester.
Deburring And Cleaning
- Robot/electrochemical deburring for internal passages, followed by multi‑stage ultrasonic cleaning and vacuum drying to cleanliness targets.
- Robot deburring cell, ECM deburring unit, ultrasonic washer, high‑pressure sprayer, vacuum dryer, cleanliness tester.
Assembly, Alignment And Impeller Setting
Assembly And Testing
- Conduct 100% hydrostatic/leak tests on housing and seal chambers, then run performance tests (flow/head/efficiency/NPSH) as required.
- Hydrostatic pressure test rig, leak test bench, performance test loop (pump test bed), flowmeter, pressure transducers, vibration analyzer.
Final Inspection and Packaging
- Perform CMM inspection and visual check, laser mark ID/traceability, and apply anti‑rust packing for shipment.
- CMM, laser marking machine, barcode printer/scanner, vacuum/VCI packaging system.
Data Traceability And Quality Control
- Record process/inspection/assembly data via MES and SPC for full traceability and rapid containment.
- MES, data acquisition system, SPC software, QMS with barcode/RFID.
