Close impeller, open impeller centrifugal pump castings description
Material: Stainless steel (2205)
Standard: ASTM A995
Casting process: alkaline phenolic resins
Min. wall thickness: 6mm
Heat treatment method: high temperature reaction, tempering treatment and solid solution
Surface treatments: shot blasting and polishing
Tensile strength: 710MPa
Yield strength: 475MPa
Tolerance grade: CT10
Application: pump, valve, impeller, power facilities, Construction Tools, Oil and gas system, Agriculture Machinery, Firefighting Equipment, Metallurgical Equipment, Shipyard, mining equipment parts.
Our market: Europe, North America, Australia, Asia.
Technical key points:
Ø Select and use alkali phenolic resin self hardening sand. Practice has proved that the secondary solidification of alkali phenolic resin under the thermal action during pouring process, will make the resin sand maintain a certain degree of thermoplastic, and then into a rigidity state, this change process to alleviate internal stress of core generated by the heat expansion of the sand stress, thus crack tendency of guide vane body casting is greatly reduced.
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 We provide free technical service about casting parts and application issues.
Ø Free on-site touring and introduction of our factory
Ø We provide process design and validation for free
Ø We can guarantee on-time delivery of samples and goods
Ø Close follow-up of all orders by special person and keep customers informed timely
Ø All after-sale request will be responded in 24 hours
2003 Wuxi Lingtong Casting Co.,Ltd. Founded, with main products of sodium silicate silica sand precision casting and sand casting.
2005 Lingtong started to cooperate with LKL located in Netherlands, our products entered EU market.
2008 start to supply castings to WKM in China.
2009 start cooperating with stertil B.V. who is famous lifting equipment manufacturer in Netherlands, we provide the lifting parts.
2010 we purchased 500kg and 750kg medium frequency furnaces to expand our capacity. In the same year, our products was audited by Flowserve Flow Control Co.,Ltd, and began to cooperate formally.
2012.3 our company has passed the ISO quality system registration, and has obtained ISO 9001:2008 certificate.
2014 our factory moved to industrial park of Mashan in Wuxi Binhui District, in addition, we added 1.5 tons and 2 tons of medium frequency electric furnace, as well as sand mixer and phenolic resin regeneration system. Formally start bulk production production of cast steel, especially production of stainless steel, carbon steel and duplex stainless steel.
2015.4 our samples provided to Wuxi Hitachi Pump Co., LTD get approval, and start cooperation with them.
2015.6 butterfly valve body produced by Lingtong won the 2015 CIFEX "gold award for for quality casting" , with material WCB.
2016.6 We Cooperated with Wuxi Xi Pump Manufacture co., LTD. and provide the hydroelectric equipment parts.
2016.10 Established a cooperative relationship with Shanghai Liancheng pump industry Co., LTD.
2017.1 get passed documents and on-site auditing from RUHRPUMPEN (China) Co., LTD and start cooperation.
2017.6 our vertical pump body casting won the award of "Special gold award for quality casting" in 2017 CIFEX. material is CF3M (316L stainless steel), the pump body was exported to the United States.
1. Which welding equipment do you have？
A: We mainly use SMAW, MAG, TIG, CW according to the material and characteristic of the casting
2. Which inspection reports you can provide?
A: We Provide dimensional inspection report, chemical composition inspection report, physical property inspection report, heat treatment report, NDT flaw detection report, according to customer demand.
3. What’s your annual production capacity?
A: We cast more then 1500 tons of all kinds steel castings annually.
4. What equipment does your company use when you examine the chemical composition?
A: We use Spark Spectrometer, testing result are printed automatically
5. What’s your physical property inspection equipment？
A: Our physical property inspection equipment include: Tensile strength tester, Brinell hardness tester, QJBCS, Portable hardness, Sand strength testing machine
6. What equipment do you have for NDT inspection?
A: We have ultrasonic flaw detector, av miniature magnetic yoke detector, magnetic detector and penetration detector.
Just contact us for detailed information without hesitate, I will reply you quickly.
Wuxi Lingtong Casting Co.,Ltd.
Attn: Ms. Vivian Wang
Tel: +86 510 85990876
Cell: +86 13861777146 15852600207
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