2results about How to "Good brazing" patented technology

The application discloses an L-wave standing wave deflection cavity for low-energy electron beam bunch length measurement and relates to the technical field of electron beam bunch measurement. The application discloses an L-wave standing wave deflection cavity for low-energy electron beam bunch length measurement and relates to the technical field of electron beam bunch measurement. The cavity chain comprises end cavity one, intermediate cavity and end cavity two, the waveguide is arranged on the intermediate cavity through the transition plate, arc-shaped matching grooves are symmetrically arranged at both ends of the transition plate along the axial direction close to one side of the intermediate cavity, the arc-shaped matching grooves are matched with the outer shaft surface of the end cavity one or the end cavity two at the corresponding end, and the slot processing of the end cavity one and the end cavity two is reduced. On one hand, the slotting workload during installation of the deflection cavity is reduced, and the machining efficiency is improved; on the other hand, the combined surface of the waveguide coupler is more fitted, and the brazing is facilitated.

To provide a cooling device for a power device that can be assembled easily with fewer parts, and that has a high heat exchanger performance. The cooling device comprises: a first casing member 10 as a plate member, a second casing member 20 as a frame member having a predetermined thickness, and a finned heat receiving plate 30 having a heat receiving surface 31a joined to an exothermic body, each of which are made of aluminum material. A coolant inlet 11 and a coolant outlet 12 are formed in the first casing member at positions to be opposed to each other. The second casing member has a thickness possible to prevent warpage thereof by a heat when joining an exothermic body, and in the second casing member, an inlet side coolant guide 21 communicated with the coolant inlet and an outlet side coolant guide 22 communicated with the coolant outlet are formed at positions to be opposed to each other. The finned heat receiving plate comprises fins 34 formed integrally on an inner surface of the heat receiving plate within a region corresponding to a coolant space 23, and each clearance between the adjoining fins serves as a flow passage 33. The first casing member, the second casing member, and the finned heat receiving plate are joined to one another, and the fins are also joined to the first casing member.