Drill rod solder belongs to solid photograph to join, he and fusion welding method are different, capable person of the mother when drill rod solder is not fused, use the material that compare a mother to fuse the drill rod with low temperature expects, heat the method of a kind of join that temperature takes line of under line of look of solid of mother capable person look of fluid of makings of prep above drill rod. Should be heated to fuse to drill rod makings by connective spare parts and drill rod makings, use liquid state drill rod to expect wet, spread out and mother capable person dissolve each other and diffuse in embellish of surface of mother capable person and in the embellish in clearance of mother capable person brooklet of wet, wool is moved, fill seam dissolve each other with mother capable person and diffuse and realize the join between the spare parts. Compare with photograph of fusion welding method, drill rod solder has the following advantage: L) drill rod solder heats temperature is inferior, lesser to organization of mother capable person and sexual encourage influence; 2) level off of connect of drill rod solder is smooth, the shell is beautiful; 3) weldment is out of shape lesser, use especially heat equably (solder of the drill rod in be like furnace) method of drill rod solder, of weldment be out of shape can reduce lowermost rate, assure the dimension precision of weldment easily; 4) method of solder of certain drill rod solder becomes a few or can become 100 brazed seam, productivity is tall: 5) can realize heterogeneous metal or alloy, metal and metalloid join. But, drill rod solder also has the drawback of his itself, intensity of needle solder connect is lower, heat-resisting ability is poorer, because mother capable person and composition of drill rod material differ bigger and discrepant electrochemistry is corroded cause be able to bear or endure corrode force is poorer reach assemble a requirement more advanced. What expect according to using drill rod is different, general component is drill rod solder: 1) solder of soft drill rod -- temperature of line of look of fluid of drill rod makings under 450t; 2) solder of hard drill steel -- 450C of prep above of temperature of line of look of needle makings fluid. In addition, certain state exceeds temperature of drill rod solder 900 ℃ and the method of drill rod solder that does not use brazing flux (if solder of vacuum drill rod, gas protects drill rod solder) call high temperature drill rod solder. Method of solder of drill rod of classification of method of drill rod solder names normally with the heat source of place application, its main effect is to rely on heat source to heat workpiece necessary temperature, develop and use as new heat source, appeared in recent years methods of many new drill rod solder. Producing methods of medium a few main or important drill rod solder is to press heat means is divisional of method of drill rod solder: The definition of international Institute of Welding to material weldability can roll out the basis of sex of drill rod solder of material, the sex of drill rod solder of material is the difficult easy rate that high grade connect achieves below the condition of drill rod solder with show material is in certain. To some kind of material character, be like technology of adoption drill rod solder simpler, the quality of connect of drill rod solder is better, should plant the sex of drill rod solder of material is better; Conversely, if use technology of sophisticated drill rod solder to win high grade contact hard also, should plant so the sex of drill rod solder of material is poor. The chief factor that affects sex of solder of material drill rod is the property of material itself. For example the exterior oxide stability of Cu and Fe is low and easy purify, the sex of drill rod solder of Cu and Fe is consequently good; The exterior oxide of Al is very compact and stable and be hard to purify, sex of aluminous drill rod solder is consequently poor. The sex of drill rod solder of material but from craft element (include to use why to plant drill rod makings, brazing flux and method of drill rod solder) will make an on-the-spot investigation. For example makings of most drill rod has been compared to the wetting action of Cu and Fe, and poor to the wetting action of W and Mo, the sex of drill rod solder of reason Cu and Fe is good, and W and M. sex of drill rod solder is poor; The meeting after be like Ti and its alloy to be the same as action of makings of most drill rod again forms brittleness compound in interfacial area, the sex of drill rod solder of reason Ti is poor; If mild steel is in in furnace when drill rod solder,be opposite again the requirement that protects atmosphere is inferior, and the high temperature alloy that contains AI, Ti is only when solder of vacuum drill rod ability wins good contact, the sex of drill rod solder of reason carbon steel is good, and the sex of drill rod solder of high temperature alloy is poor. Altogether, the sex of drill rod solder of material not only decision at material itself, and with drill rod makings, brazing flux and method of drill rod solder are concerned, because this needs,fibrous root undertakes integrated assess according to particular case. The Normal > solders methodological material Normal Align=center> hard drill steel induction of solder of the drill rod in flame brazing furnace heats resistor of drill rod solder heats solder of drill rod of macerate of drill rod solder solder of infrared drill rod diffuses △ of △ of △ of stainless steel △ of △ of △ of △ of △ of △ of △ of △ of low-alloy steel △ of △ of △ of △ of △ of △ of △ of △ of △ of steel of carbon of drill rod solder: △ expresses to be recommended CNC MillingCNC Machining