Manufacturing Process And Performance Study Of Bimetal Cladded Pipe

Because of its excellent corrosion resisting propertiy and low cost,Ni-steel explosive cladding plate is widely used in many fields like chemical, electricity and aerospace. Gas field which contains a large amounts of H2S and CO2generally choose the acidesistantsteel with using corrosion inhibitor. In order to make the gas transition much safer, this article tryies to make the Ni-steel explosive cladding plate into pipes with the JCOE process. The new pipe will take place of traditional antisulfur steel and improve the corrosion situation of gas gathering. This article is about the formation of heavy caliber LASW made by nickel steel cladded plate. This article evaluates the properties of Ni-steel palte including joint rate, bending property and shear strength. The article also research the intergranular corrosion property and the electrochemistry behavior of N06625, N08825and316L after the explosive cladding process. The results show that cladding plate possess well combining property and the explosive cladding process is only a small effect on corrosion property. We have made the reasonable welding plan and evaluated the property of welding line. The max hardness measured is under the value in API standard. The corrosion rate has only a small change after explosive cladding process. The article research the effects of JCOE process on interface of Ni-steel explosive cladding plate and observe wether it appears delamination or not. The article research the effects of process paramters on shaping accuracy, load and interlaminar stress and acquire the optimized paramters. Explosive composite interface has well good bonding behavior, the interlayer stress simulated by Abaqus is below the value measured.