Portable welding pen

Abstract

The invention discloses a portable welding pen, which belongs to the field of welding and cutting technique. The portable welding pen comprises a powder tube filled with a thermit, an ignition head on the head part of the powder tube, and an ignition segment between the ignition head and the thermit, wherein the tail part of the powder tube is closed by a clamping end with external threads on one end; the ignition head is made of red phosphorus; the ignition segment adopts thermit welding pyrophoric powder; the thermit contains an exothermic agent, a slagging flux and an alloying agent; the exothermic agent contains CuO powder 60 to 70 wt% and Al powder 15 to 20 wt%; the slagging flux contains CaF2 powder 4 to 8 wt% and CaSO4 powder 5 to 7 wt%; and the alloying agent contains ferromanganese powder 1 to 3 wt% and ferronickel powder 2 to 4 wt%. When in use, the welding pen can be used for welding and cutting workpieces by withdrawing the pen tube, screwing the pen tube on the clamping end, holding the pen tube and then igniting the ignition head at the front end of the welding pen. The welding pen has low manufacture cost, and is small and portable. The welding pen is particularly suitable for the welding and cutting operation of steel and copper materials under emergence conditions, and has the advantages of high welding quality and high cutting speed.

Description

technical field [0001] The invention belongs to the technical field of welding and cutting, and relates to a portable welding pen for welding and cutting steel and copper materials in an emergency. Background technique [0002] Welding technology is one of the important means for industrial, civilian machinery and military equipment manufacturing, emergency repair and emergency maintenance and installation, but the electrode arc welding commonly used at present requires a power supply with an output power of more than one kilowatt and a heavy electric welding machine, while gas welding needs to store oxygen The high-pressure special equipment for acetylene gas involves a lot of engineering, and the operator needs to receive special training. This greatly restricts the maneuverable, flexible and efficient deployment of emergency welding repair tasks under special circumstances such as power outages, outdoors, rain and snow. In addition, these traditional emergency maintenanc...

AI Technical Summary

Problems solved by technology

In this patent, the slagging agent is separately molded into the form of a cartridge, and the thermite contains more expensive titanium powder, and the cost is higher

And the length of the flame retardant head held by the operator is too short, so that the safety factor of the operator is not high when welding

Images