Strong Structure Aluminum Clad Stainless Steel Sheet

A large number of hydrogen storage tanks need to be used in the storage and transportation of the hydrogen industry chain. To reduce the dead weight of the tank, the hydrogen storage tank adopts a double-layer design. The outside of the tank is made of stainless steel to ensure strength. The inside of the tank is made of aluminum alloy to store gas or liquid hydrogen. The storage conditions are low temperature and high pressure. The tank body and outside are connected by Strong structure aluminum clad stainless steel sheet transition joints.

 

 

Application case specification of stainless steel materials	(multi-layer/base course)/mm (multi-layer+base course)	Application examples	Specifications	Manufacturer used	composite process
Ferrite	0Crl3/16MnR	Gas tower	2+12,2+14	Luoyang Refinery	blast
	0Cr13/20G	reaction kettle	2+12	Jinzhou Refinery	blast
	0Cr13/A3	Asphalt gas tower	2+14,2+16,2+18	Tianjin Refinery	blast
	405/20R	Primary distillation tower	3+12	Guizhou Petrochemical Machinery Factory	blast
	405/20R	Desorber	3+22	Daqing Oilfield Construction Group	blast
	1Cr13/Q345	Coal scuttle	3+12	Hancheng No.2 Power Plant	rolling
Austenite	321/16MnR	Desorber	2+10,2+14	Anqing Petrochemical Complex	blast
	321/16MnR	Sealing water buffer tank	2+12,2+16	Yangzi Petrochemical Company	blast
	321/20G	Fractionator	2+12,2 +14	Zhejiang Xinchang Chemical Corporation	blast
	316L/20G	Evaporation tank	2+12,2 +14	Pingdingshan Salt Factory	blast
	1Cr18Ni9Ti/SB42	Pressure reducing tower	2+16,2+18,2+20	Karamay Refinery	blast
	1Cr18Ni9Ti/20G	Solvent tank	2+16,2+18,2+20	Luoyang Refinery	blast
	304/16MnR	Heat exchanger tube sheet	4 +20	Yangzi Petrochemical Company	blast
	321/15CrMoR	Pressure vessel head	3+24		blast
	SUS316L/16MnR	reaction kettle	4+14	Yixing Pressure Vessel Factory	blast
	SUS321/SPV36	Boiler feed water preheater	3+28	Yangzi Petrochemical Company	rolling

 

At present, the commonly used theoretical models of interface wave formation mechanism in explosive welding mainly include the following four types: indentation mechanism, flow instability mechanism, vortex mechanism and stress wave mechanism. Among them, the vortex mechanism better reveals the formation mechanism of the welding interface. In the vortex mechanism, it is considered that the metal flow at the interface in explosive welding can.

 

It is explained by the separation and reconfluence of flow beams when fluid flows around an obstacle in fluid dynamics. When the liquid flows over the impact point, the impact contact area is similar to a solid obstacle. The jets formed between the base and the Strong structure aluminum clad stainless steel sheet are separated first and then converged. After the impact, a Karman vortex street is generated, and finally a wavy interface is formed. This vortex street is very similar to the observed interface waveform.

 

The explosive welding method is to use the high temperature, high pressure and high speed shock waves generated by the chemical energy released during the explosive explosion to act on the weldment and cause violent impact. A jet is generated at the impact point of the contact surface. The jet washing action removes the surface oxide film and adsorption layer, so that the clean metal surfaces contact each other and closely combine under high pressure to form metal bonds. With the continuous explosion of explosives, the interface moves forward, Forming a continuous explosive interface

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