Stainless Steel Investment Casting Ball Valve Description
Material: Stainless steel (1.4408)
Standard: DIN EN 10213
Casting process: alkaline phenolic resins
Weight: 185 KGS
Min. wall thickness: 11mm
Heat treatment method: solution treatment
Surface treatments: shot blasting
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, Australia, America, Asia.
Technical Key Points
Ø In order to guarantee the required pressure of typical pump casting, when making the technical scheme in casting process, we must ensure the necessary riser pressure and effect of the casting，and control the technological yield of the casting between 50％－55％.
Ø Molten steel tapping temperature be controlled between 1640 ℃ -1650 ℃, if temperature is too high, it’s easy to adsorb oxidize in the air; After tapping, slag repeatedly, then sedate for 3-5 minutes for slagging and degassing to purify molten steel. for stainless steel casting, casting temperature should be strictly controlled at 1580 ℃ -1590 ℃, thin-walled ultra-low carbon stainless steel pump body, pouring temperature can be controlled at 1590 ℃ -1610 ℃; whole processes before pouring, cover agent should be applied to prevent the molten steel surface exposed to the air, resulting in oxidative and inhalation, which will seriously affecting the quality of molten steel.
Parts of Our Customers
Ø Strict contract auditing invloved all departments to assure the feasibility of each order.
Ø Strictly control on all raw and auxiliary materials, All raw materials reach the world advanced level.
Ø All inspectors are skilled with international certificates.
Ø Qualified WPS and professional welders guarantee welding quality.
Ø Advanced and complete testing and inspection equipment: NDT, metal Microscope, impact tester, hardness tester.
Ø Regular training for inspection staff.
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.
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.
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.
2016.10 Established a cooperative relationship with Shanghai Liancheng pump industry Co., LTD.
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.