Resin Sand Castings Introduction
Material: Stainless steel (07Cr19Ni9)
Casting process: alkaline phenolic resins
Min. wall thickness: 13mm
Tensile strength: 560MPa
Yield strength: 255MPa
Tolerance grade: CT12
Technical Key Points
Ø Take effective measures to reduce the casting temperature to eliminate crack defects, at the same time reducing the temperature drop of molten steel to ensure the filling capacity of steel. Main technical measures: one is to directly reduce the casting temperature, the original pouring temperature of 1600 ℃ -1610 ℃, and now strictly control the temperature at 1570℃ -1580 ℃. Second, to reduce the temperature drop of molten steel. After the mold are assembled, blow heat wind 150 ℃ -200 ℃ to the cavities for 60 min-90min, and stop blowing 5min before pouring.
Ø Control the usage rate of recycled material. When melted in the atmosphere, most of the easily oxidized elements in the material are present in the form of inclusions. Therefore, the amount of inclusions to be taken into account and the usage of recycled material must be controlled. for the stainless steel guide vane, the provisions of the return material amount should be not more than 15%.
Parts of Customers
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 We will conduct on-site inspections of all processes, and maintain the traceability of the inspection records for 3 years.
Ø Qualified WPS and professional welder ensure welding quality.
Ø Strict product testing will be carried out before shipment.
Ø We provide free casting technical service and application problems.
Ø Free on-site touring and introduction of our factory.
Ø We provide process design and validation for free.
Ø We can guarantee the punctual delivery of the sample and the goods.
Ø We will follow up the order process regularly and inform the clients in time.
Looking forward to cooperate with customers all over the world!