نتایج جستجو برای: brazing
تعداد نتایج: 803 فیلتر نتایج به سال:
In this paper, the heat transfer performances of aluminum metal foams, placed on horizontal plane surface, was evaluated in forced convection conditions. Three different types of contacts between the sample and the heated base plate have been investigated: simple contact, brazed contact and grease paste contact. First, in order to perform the study, an ad hoc experimental set-up was built. Seco...
The 2.5 MeV injector for the Spallation Neutron Source is currently under construction at LBNL, which includes a 2.5 MeV high power, high duty factor four vane RFQ made of four modules. Transverse mode stabilization is obtained through a series of cross coupling rods. Each of the four RFQ modules is equipped with twenty fixed tuners, two active power and two vacuum ports. Fine frequency tuning ...
A ship building grade of carbon steel has been coated with copper by a furnace brazing process starting from a brass braze. An argon protective atmosphere was used to prevent oxidation of the steel. However, when the deposit was produced a low gas flow rate ensured that zinc was lost from the brass by oxidation leaving a copper deposit on the steel surface. The copper was found to be zinc free ...
The 6063 Aluminum alloy brazing joint was prepared with the Al-Si12 solder. effect of welding time on structure and shear properties weld is studied interface analyzed. study shows that spreading performance brder gradually increases time, strength aluminum increase first then decreases time. When optimal process 605°C 15min, between solder good, 122.4MPa. To ensure bonding alloy, insulation 15...
Ceramics bonding is becoming an important technology and has found wide applications in different engineering and electronic industries. In this paper, furnace bonding of ceramics using solder glass frit was investigated with emphasis on the effects of surface treatment and bonding conditions on bonding strength. Alumina (Al2O3) sheet and SCHOTT solder glass G017-393 were used as the base and b...
This project, development of a charged-particle accumulator using an RF confinement method, is recognized at CERN as one of the important R&D projects. Technical support is thereby provided by CERN’s cryogenic laboratory, central workshop, radio-frequency group, brazing and surface treatment laboratories. However, due to the accident in the LHC (Large Hadron Collider) tunnel (September 2008), m...
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