Open Die Forged Steel Flanges, Ring Flange Forging in Natural Gas Pipeline
|Min. Order (Pieces)||FOB Price|
|1+||US $100-10,000 / Piece|
|Material||Carbon steel, Stainless steel, Alloy steel, Aluminum, etc.|
|Specification||OEM, according to customers' drawings|
|Main Equipment||2500T/1600T/1000T/630T/400T drop forging equipment, grinding pressure equipment, hydraulic forging press, CNC-machines, machine-center|
|Heat Treatment||Normalized, Quench Temper Annealing Q+T|
|Process||Open die forging (free drop forging or hot forging)-normalizing & tempering proof machining-quenching & tempering-finish machining|
|Certification||ISO9001;ISO14001; OHSMS18000; API Q1 etc.|
|Quality Assurance||Crack testing, chemical analysis, mechanical testing and metallography, etc.|
|Test equipment||Optical spectrum analyzer, CMM, hardness test equipment, tensile test machine|
|QC||1) Technicians self-check in production|
2) Engineer spot check in production
3) QC inspects after mass production finished
4) International sales who were trained the technical know-how spot check before shipping.
LaiWu Forging Co., Ltd. is a professional free forgings manufacturer. With 40 years experience, it has been become the member of Confederation of Chinese Metal forging Industry, China AAA grade credit company and the national high & new technology enterprises.
Our factory focusing on forgings for oil & gas,Machinery,Military/ Defense,Mining,Power Generation,Nuclear, Gas Turbines,Railway & Mass Transit industries.
We have rich production experience and full technology on this industry. The products including gate valve, valve box, integral union riser, Fracturing head, tubing head, casting head, cross body, stabilizer, BOP...The products have pass API Q1, all production process follow the Q1's request. Our company has whole sets of QC equipments, which will ensure after many times QC, the products will be 100% good. Our products has exported to Southeast Asia, Middle East and USA, and win the customers' high reputation. Our company will try our best to develop to a very professional, high quality, and fast lead time forging manufacturer in China.
Main Products: Pipe Mould ,Wind turbine main shaft; crankshaft; forged tee ;roller; marine stern shaft; Cylinder; Flange etc. As following:
Main Equipments as following:
|Forging Equipments||4500t &1600t Hydraulic forging equipments; 50t&15t Manipulators; 2t&1t&450kg air hammer; 5t electro hydraulic hammer etc.|
|Heat treatment Equipments||φ2*12m pit furnace; φ8*3*3m table resistor furnace; 1.5*0.8*1.5m box resistor furnace; 8*3*3m gas furnace; 6*3*2m gas furnace; 7.5*4*2.5 gas furnace;16*2.5*2.5 gas furnace etc.|
|Machining Equipments||Total 40sets; including φ2*12m heavy sleeper; φ5m vertical lathe; floor type boring and milling machine; CNC miller ;φ1.6*16m heavy sleeper; single-arm planer; boring and milling machine etc.|
|Quality Test Equipments||Impact testming machine;universal testing machine; spectrometer; impact machine; cryonstat; hardness tester ; projector; metallographic microscope ,king hardness tester etc.|
Forging & Heat Treatment & Machining Equipments
1.During the smelting process, strict control is required both for the prescribed elements( 21 CrMo10), and for some harmful elements and gas, like P, S , Sn, As, Sb, Bi, and H, O, N.
2.To guarantee that the pipe moulds have reached our flaw detection standards, and that the forged blanks own refined grains, we have employed strict forging technique upon the ductile iron pipe moulds.
3. After roughing process (drilling inner holes), a quenching and tempering treatment is given by vertical pit furnace upon the pipe moulds for further refined grains and higher comprehensive mechanical propertied.
4. CNC equipment is adopted for finishing for high processing precision.
5.All of the propertied of our pipe moulds are superior than the GB/T 25715 centrifugal ductile iron pipe mould standards.