Good Quality Low price of Cast iron check valve casting

Material:  gray iron, ductile iron, carbon steel, stainless steel, alloy steel

Process:  sand casting ,investment casting ,die casting and so on

Standard:  GB ,ASTM ,DIN ,JIS

Weight range: 5g-20ton

Quality control:

(1) Machinery properties and Chemical components testing after raw casting

(2)Hardness checking after heat treatment

(3)Dimensions testing after maching

(4)drawings→mould making→raw casting→sandblasting→rough machining or finish machining→surface treatment→packing→delivery strict

 Packaging Detail:        wooden, pallet

 Shipping Detail:           acc. to the detailed quantity( normaly 30 days)

    Our company owns a perfect sand analysis testing equipment, use molding machine,use the intermediate frequency electric furnace to melt, furnace analysis using advanced detection equipment,To make on-site rapid anysis, through direct reading spectrometer to analysis the elements such as carbon, silicon, manganese, phosphorus, sulfur and dozens of elements in iron liquid and using digital metallographic microscope to observe the casting structure. 

    Company management using 5 s, TPM and Lean Production Management, and passed the Quality Management System Certification (ISO9001:2008)in 2004, leading-in the ISO9001 (2008) Quality Management mode and standardized the production processes, quality management. In 2014 the company passed the environmental management system certification (ISO14001:2004) and Occupational Health and Safety Management System Certification(OHSAS18001:2007) .

    Production equipments have resin sand reclamation line, resin molding line, medium frequency melting furnace, and some other auxiliary production equipments. 
    Machining equipments: 6 maching center, 20 CNC machine, 20 general machine tools. 
    Testing equipments:one coordinate measuring machine, one German spectrometer, digital metalloscope, sand analysis detection system, low temperature impact testing machine, universal tensile testing machine, coating thickness gauge, ultrasonic flaw detector, carbon and silicon furnace  analyzer, roughness measuring instrument, the sound velocity meter, thermometer, endoscope and hardness tester and other  kinds of detecting instruments.