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 oneend; 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 ma...

Examples

Embodiment 1

[0027] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 60wt%, Al powder: 20 wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 8wt%, CaSO 4 Powder: 5wt%; the components and proportions of the alloying agent are: ferromanganese 3wt%, ferronickel 4wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper shavings, the surface layer of the particle is oxidized, the core is still metallic copper, and the oxidation rate is 70%. Firstly, each component was weighed according to the above percentage ratio, and dried in an electric heating constant temperature blast drying oven (T=80°C) for 6 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 11 mm and a length of 150 mm, and install an ignitio...

Embodiment 2

[0030] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 68wt%, Al powder: 17 wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 5wt%, CaSO 4 Powder: 7wt%; the components and proportions of the alloying agent are: ferromanganese 1wt%, ferronickel 2wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper shavings, the surface layer of the particle is oxidized, the core is still metallic copper, and the oxidation rate is 75%. Firstly, each component was weighed according to the above percentage ratio, and dried in an electric heating constant temperature blast drying oven (T=80°C) for 7 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 13 mm and a length of 170 mm, and install an ignitio...

Embodiment 3

[0033] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 70wt%, Al powder: 15wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 4wt%, CaSO 4 Powder: 6wt%; the components and proportions of the alloying agent are: ferromanganese 2wt%, ferronickel 3wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper scrap, the surface layer of the particle is oxidized, and the core is still metallic copper, and the oxidation rate is 80%. First, weigh each component according to the above percentage ratio, and dry it in an electric constant temperature blast drying oven (T=80°C) for 8 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 14 mm and a length of 200 mm, and install an ignition section 4 and...

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 ma...

Examples

Embodiment 1

[0027] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 60wt%, Al powder: 20 wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 8wt%, CaSO 4 Powder: 5wt%; the components and proportions of the alloying agent are: ferromanganese 3wt%, ferronickel 4wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper shavings, the surface layer of the particle is oxidized, the core is still metallic copper, and the oxidation rate is 70%. Firstly, each component was weighed according to the above percentage ratio, and dried in an electric heating constant temperature blast drying oven (T=80°C) for 6 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 11 mm and a length of 150 mm, and install an ignitio...

Embodiment 2

[0030] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 68wt%, Al powder: 17 wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 5wt%, CaSO 4 Powder: 7wt%; the components and proportions of the alloying agent are: ferromanganese 1wt%, ferronickel 2wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper shavings, the surface layer of the particle is oxidized, the core is still metallic copper, and the oxidation rate is 75%. Firstly, each component was weighed according to the above percentage ratio, and dried in an electric heating constant temperature blast drying oven (T=80°C) for 7 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 13 mm and a length of 170 mm, and install an ignitio...

Embodiment 3

[0033] A portable soldering pen, thermite is composed of exothermic agent, slagging agent and alloying agent. The components and proportions of the exothermic agent are: CuO powder: 70wt%, Al powder: 15wt%; the proportions of the components of the slagging agent are: CaF 2 Powder: 4wt%, CaSO 4 Powder: 6wt%; the components and proportions of the alloying agent are: ferromanganese 2wt%, ferronickel 3wt%. The particle size of each powder is between 150 mesh and 200 mesh, among which CuO powder is industrial copper scrap, the surface layer of the particle is oxidized, and the core is still metallic copper, and the oxidation rate is 80%. First, weigh each component according to the above percentage ratio, and dry it in an electric constant temperature blast drying oven (T=80°C) for 8 hours. Then mix in a high-speed mixer for 1 minute to obtain thermite 2; fill the thermite 2 into a paper tube 1 with a diameter of 14 mm and a length of 200 mm, and install an ignition section 4 and...

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