One way of joining metal parts is soldering. With proper selection of flux and solder these connections are more reliable and can withstand a high load. Brazing is carried out various gas burners, with a supercharger and no bliss using as fuel liquefied propane. Homemade injector burner can be powered by cylinders with liquefied propane with a capacity of 1 litre (and cylinders must be equipped with a valve with a hose or cylinders with a capacity of 25 liters.
The figure shows the design of the burner. All of its parts are very simple and do not require high skills in manufacture.
The burner nozzle is made of steel tubing or machined from Steel or Steel 3 4$ on a lathe. In the pipe nozzle has four holes that can be blocked by the inner liner; thereby regulates the inflow of air that forms the flame. The liner is also machined from steel; it can be made as a monolithic part or is composed of three separate, subsequent propanol hard solder. In this case, the sleeve, fitted on the gas supply tube, a fixed sprocket and the short length of pipe.