Pump Sand Casting Stainless Steel Sand Casting Introduction
Material: carbon steel (ZG270-500)
Min. wall thickness: 13mm
Heat treatment method: normalizing
Surface treatments: shot blasting and polishing
Tolerance grade: CT11
Application: pump, valve, impeller, power facilities, Construction Tools, Oil and gas system, Agriculture Machinery, Firefighting Equipment, Metallurgical Equipment, Shipyard, mining equipment parts.
Technical Key Points
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 Process design and verification before batch production.
Ø Strict control of all raw and auxiliary materials, so that all raw materials to reach the world's advanced level.
Ø We will conduct on-site inspections of all processes, and maintain the traceability of the inspection records for 3 years.
Ø All inspectors have international certificates.
Ø We will train inspectors regularly.
Ø We are an innovation driven company, we have five patents, and will get another 13 patents within a few months.
Ø Advantage technology in composition control, especially super low carton steel, stainless steel and duplex stainless steel.
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 of our technological innovations are for one goal - the best quality.