Novel brazing furnace
A brazing furnace, a new type of technology, applied in welding equipment, welding/welding/cutting items, electric heating devices, etc., can solve the problems of high cost and complex structure, and achieve the effects of low cost, improved heating efficiency and simple structure
Pending Publication Date: 2017-09-29
郑州联冠科技有限公司
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Problems solved by technology
In this patent, the multi-stage nitrogen curtain at the nitrogen blowing port constitutes a nitrogen door sealing device. At the same time, a nitrogen source and a pump are required, which has a complex structure and high cost.
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[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0026] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a novel brazing furnace comprises a frame 1, a front furnace tube 2, a body of furnace 3, a cooling furnace tube 4, a rear furnace tube 5, a mesh belt device 6 and a driving device 7, and the body of furnace 3 includes a furnace 31 and a furnace core tube 32, the furnace core tube 32 is installed in the furnace 31, the inner wall of the furnace 31 is provided with a thermal insulation layer 34, the furnace core tube 32 is installed in the center of the furnace 31, along the length of the furnace 31 Direction arrangement, the inner wall of the thermal insulation layer 34 is provided with multiple sets of heating devices 33, multiple sets of heating devices 33 are evenly arranged along the length direction of the furnace 31, the described heating devices 33 are silicon carbide rods, the d...
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The invention relates to a novel brazing furnace. The novel brazing furnace comprises a frame, a front furnace pipe, a furnace body, a cooling furnace pipe, a back furnace pipe, a net belt device and a driving device; the front furnace pipe aslant upwards communicates with the front end of a furnace core pipe; the cooling furnace pipe aslant downwards communicates with the tail end of the furnace core pipe; hydrogen aslant upwards flows into the furnace core pipe along the inclined cooling furnace pipe, and aslant downwards flows out along the front furnace pipe; as the hydrogen is the lightest gas, and has the characteristic of upwards flowing, the hydrogen cannot flow out from a lower port of the cooling furnace pipe; the cooling furnace pipe is closed by using the characteristic of light mass of the hydrogen and the pressure to prevent external air from entering from the cooling furnace pipe; the hydrogen flowing out from the furnace core pipe aslant downwards flows along an inclined section of the front furnace pipe under the pressure effect; the hydrogen has upward fluidity; the hydrogen fed in the front furnace pipe is stacked in the inclined section to close the front furnace pipe to prevent external air from entering from the front furnace pipe; and compared with a traditional brazing furnace, a nitrogen door sealing device is saved, the structure is simple, and the cost is low.
Description
technical field [0001] The invention relates to the technical field of brazing furnaces, in particular to a new type of brazing furnace for the brazing combination of ceramic substrates and metal conductors, which does not need a nitrogen gas sealing device. Background technique [0002] At present, the combination of ceramic substrates and metal conductors usually adopts brazing method. Brazing uses metal materials with a lower melting point than the base metal as solder, and heats the weldment and solder to a temperature between the melting point of the solder and the melting point of the base metal. , a welding method that uses liquid solder to wet the base metal, fill the joint gap, and diffuse with the base metal to achieve the connection. The brazing technology of metals and ceramics can realize the mutual combination of the performance advantages of the two materials, thereby effectively expanding its application range, and is one of the current research hotspots in t...
Claims
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IPC IPC(8): B23K3/04B23K3/08
CPCB23K3/043B23K3/085B23K2103/52
Inventor 王维
Owner 郑州联冠科技有限公司