Cast Iron Multistage Centrifugal Water Pump Description
Material: Stainless steel (CF3M)
Standard: ASTM A297M 2003
Casting process: Alkali phenolic resin sand casting
Weight: 62 KGS
Min. wall thickness: 10mm
Heat treatment method: solution treatment
Surface treatments: pickling and passivation
Tensile strength 610MPa
Yield strength 285MPa
Tolerance grade: CT10
Technical Key Points
Ø For the two-channel pump body, we usually install several feeding heads in the appropriate parts of the upper side, and in the intersection of hot stream set a certain height of the side riser. If the flange size of the bottom is larger and thicker, to set side riser to feed the shrinkage alone is required.
Ø For small and medium-sized pump body castings, we usually set pouring system in the horizontal parting surface, with semi-circular horizontal runners and scattered inner runners, so as to reduce hot section and expands the filling surface, in the premise of ensuring the cross-sectional area, try to increase the width thickness rate (7: 1-5: 1). For larger pump castings, surface area is large and flow route of molten steel is long, so the temperature of steel drop fast, normally we use the bottom injected open-type pouring system, to achieve effective, fast and smooth filling.
Ø Strict contract auditing invloved all departments to assure the feasibility of each order.
Ø Process design and validation before bulk production.
Ø Strictly control on all raw and auxiliary materials, All raw materials reach the world advanced level.
Ø On-site inspection to all processes, inspection record keep traceable for 3 years.
Ø 100% inspection of finished sprouts before shipment.
Ø Advanced and complete testing and inspection equipment: NDT, metal Microscope, impact tester, hardness tester.
Ø Regular training for inspection staff.
Ø We are a innovation-driven company, we have five patents and another 13 patents will be expected to get in short months.
Ø we are willing to develop all new material only if it’s required in application.
Ø We cast very good surface of thin-wall castings, which is normally not easy to control for sand castings, but we made suitable technology and are able to guarantee smooth no-defect surface.
Ø All our technology innovation only for one aim--- the best quality, even that means a higher cost and lower production rate.
1. What kinds of material you can produce?
A: The dominant material we cast is stainless steel, duplex stainless steel, carbon steel, ductile cast iron, aluminum, copper, bronze, brass and alloy metal, stainless steel, duplex stainless steel, carbon steel, ductile cast iron, aluminum, copper, bronze, brass and alloy metal etc. etc.
2. Can you provide machined finished parts?
A: Yes, we have our own machining center, we have machines for different machining process and CNC machining center.
3. What is your main casting process?
A: Our casting technologies include sand casing, investment casting, bonded sand casting etc.
4. Can you produce OEM parts according to our casting drawing and machining drawing?
A: Yes, we can produce OEM parts according to our casting drawing and machining drawing.