Device for flame treatment of metals

 

The invention relates to a gas-flame processing of metals and can be used for manual and automatic welding, brazing and cutting of metals. The technical result of the invention is to improve the reliability and safety of operation of the device by providing protection against reverse shock and explosion, as well as ensuring a high gas-dynamic parameters in real operation and maintainability. The barrel channel for supplying fuel gas cutting oxygen and oxygen for combustion is connected respectively with pipes for supplying fuel gas cutting oxygen and oxygen for combustion. A removable cap configured to mount on the head, has an adapter with a conical mixing chamber and a rod with a conical shank located in a cone-shaped mixing chamber. The mixer is concentric to the rod and is made with holes for mixing gases and communicating with them holes for supplying the fuel gas and oxygen burning, connected to the tubes for supplying, respectively, the fuel gas and oxygen for combustion. Holes for mixing gases are communicated with a conical mixing chamber adapter. Tonicheskie rod, which made the Central channel for the supply of oxygen, coupled with the appropriate tube. Removable nozzle for straightening and straightening has a replaceable NIB, made in the form of a sleeve with a wall with through-holes and the expanding part of the mixing chamber of the adapter facing the replaceable tip. 4 C.p. f-crystals, 7 Il.

The invention relates to a gas-flame processing of metals and can be used for manual and automatic welding, brazing and cutting of metals.

A device for flame treatment of metals consisting of arm, piping fuel gas and oxygen corps with adjusting valves, tip to the mixing chamber and the injector, cylinder, and with a mouthpiece (D. L. Getmanenko. "Welding and cutting of metals". - M.: Higher school, 1974, S. 162-164). This device is intended for welding and brazing of metals, it is equipped with a set of interchangeable tips. Each tip installed the mixing chamber with the injector and the cylinder with the mouthpiece.

The disadvantages of this device are high complexity and intensity of interchangeable tips and inability to use it as an oxy-fuel torch is abode metals, designed for welding, brazing and cutting, consisting of a body with the channels of the input fuel gas and oxygen and the channel exit of the combustible mixture and the cutting oxygen, interchangeable tips for oxy-fuel cutting and welding of metals and tubes of the gas mixture, in which there is a mixing chamber (FR 498521, F 23 D 3/24, 1919).

A disadvantage of this device is that it cannot be used without replacing the entire tip for cutting metals of different gases, when used as a gas welding torch valve for cutting oxygen remains on the body that creates the extra weight and bulkiness of the burner, in addition, the device does not have a system plamegate during the reverse stroke.

The closest design features is a device for flame treatment of metals, consisting of a barrel (arm) with the valves fuel gas and oxygen in the inlet gas and the oxygen tubes and the output channel of the combustible mixture connected with interchangeable nozzle having a removable tip with removable mixing chamber in the form of a cone clutch, which is screwed into the injector and the cylinder. The tip is made in the form of a tube of the combustible mixture, one end of which is fixed a head with mongst which is unchanged when changing nozzles (EN 2076790 C1, B 23 K 5/00, 7/00, 10.04.1997).

This device has a number of disadvantages: the mixing of gases in the replacement nozzles happening with valve group from the trunk, after exiting barrel gases are mixed and transferred to removable tip on one side of the tube, being explosive mixture of a certain extent and under certain conditions this can lead to an explosion in the tube and to an accident; inconvenience in maintenance when cleaning the tube so as to clean the tube must Unscrew the mixing chamber, and after cleaning again you must screw it, thus providing the necessary tightness; significant wear of the threaded connections and the reduction of service life; the need to replace the full set of the mixing chamber with the injector. For each size, welded metal, you must have your mixing chamber with the injector; insufficient system plamegate in a reverse shot in several, for example five holes in the end face of the injector; the high complexity of the exchangeable injector-mixing nodes, as each injector must be run as inclined to the passage of oxygen, and the longitudinal passage of fuel gas (acetylene) holes.

to protect against reverse shock and explosion, as well as ensuring high gas-dynamic parameters in real operation and maintainability.

For this purpose, the device for flame treatment of materials containing barrel with channels for supplying the fuel gas, the cutting oxygen and oxygen for combustion, connected respectively with pipes for supplying fuel gas cutting oxygen and oxygen for combustion, the cylinder, and a removable cap with removable tip and mixer, tube for supplying fuel gas cutting oxygen and oxygen for combustion mounted on the head, a removable cap configured to mount on the head and provided with an adapter with a conical mixing chamber and a rod with a conical shank located in said cone-shaped mixing chamber, which one end is fixed in a removable tip, and on the other end is mounted mixer, concentrically located on the rod, while the mixer is made with holes for mixing gases and communicating with them holes for supplying the fuel gas and oxygen burning, connected to the tubes for supplying, respectively, the fuel gas and oxygen for combustion and vents for gas blending noobsauce tapered shank of the rod is made in the form of a swirl with a screw surface.

Removable nozzle for gas cutting is a rod, which made the Central channel for the supply of oxygen connected to the corresponding supply tube oxygen, replaceable NIB in it is made in the form of a mouthpiece with a nozzle hole, and the tapered portion of the mixing chamber of the adapter facing the mouthpiece.

Removable nozzle for gas welding has replaceable NIB, made in the form of a mouthpiece with a nozzle hole, and the tapered portion of the cone-shaped mixing chamber of the adapter facing the mouthpiece.

Removable nozzle for straightening and straightening has a replaceable NIB, made in the form of a sleeve with a wall with through-holes and the expanding part of the mixing chamber of the adapter facing the replaceable tip.

In Fig.1 shows a General view of the proposed device, use it as a gas welding torch of Fig.2 - General view of the device, the option of using it as a torch for gas-oxygen cutting of metals; Fig.3, a removable nozzle for gas welding; Fig.4, a removable nozzle for straightening and straightening of Fig.5 is a view of a of Fig.4; Fig.6 - head for cutting; Fig.7, a removable nozzle for cutting.

Ustroystva for combustion and the fuel gas valve 4, head 20 with tubes 7, 8 and 9, the supply of cutting oxygen, oxygen for combustion and the fuel gas and replaceable nozzles 5 with replaceable tip 6. The barrel 1 has channels for supplying the fuel gas, the cutting oxygen and oxygen for combustion (not shown) connected respectively with the tubes 7, 8 and 9, the supply of cutting oxygen, oxygen for combustion and fuel gas. Replaceable nozzle 5 is attached to the head and consists of the adapter 10 with a conical mixing chamber 11 for mixing combustible gases and oxygen for combustion when performing welding or combustible gas, oxygen for burning and cutting oxygen during gas cutting, rod 12 with a tapered shank 13, which is located in the mixing chamber 11 for mixing. One end of the adapter 10 is fixed in a removable tip 6 and at the other end is mounted mixer 14, concentrically located on the rod 12. The mixer 14 is made with holes 21 for mixing gases and communicating with them holes 15 and 16 for the supply of combustible gas and oxygen for combustion. These openings are connected with the pipes 9 and 8 for supplying, respectively, the fuel gas and oxygen for combustion. When the output from the mixer 14, the gas is directed in an expanding or Contracting in a shank 13 of the rod 12 is in the form of a swirl with a screw surface. Nomenclature and number of replacement nozzles 5 are selected depending on the combustible gases and types of work performed. Gas cutting in the rod 12 is made the Central channel 17 for the supply of cutting oxygen, coupled with a corresponding tube 8 head 20. Replaceable NIB 6 it is made in the form of a mouthpiece with a nozzle hole 18. Tapering portion of the conical mixing chamber 11 of the adapter 10 is turned in the direction of the mouthpiece.

For gas welding uses replaceable tip 6 in the form of a mouthpiece with a nozzle hole 18, and the tapering portion of the conical chamber 11 of the adapter facing the mouthpiece.

Replaceable nozzle 5 for straightening and straightening features a replaceable tip 6, is made in the form of a sleeve with a partition with many through holes 19, and the expanding portion of the conical mixing chamber 11 of the adapter facing the replaceable tip, to create multiple stream of flame during processing.

The proposed device operates as follows.

Depending on the combustible gas and the type of work performed, select the appropriate replaceable nozzle 5, which is attached to the head 20.

If you want to run Gazovaya part of the conical mixing chamber 11 of the adapter, facing the mouthpiece. The collected gas welding tip attached to the head 20 with tubes combustible mixture 9 and oxygen for combustion 8, which are connected with the corresponding channels in the barrel 1. Opening turn the valve of the oxygen for combustion 3 and the fuel valve gas 4 working sets at the outlet of the mouthpiece 6 torch the necessary power and produces weld metal. After welding, close the fuel valve gas 4 and the valve oxygen 3. If necessary, conversion to the welding of metal other thickness disconnect gas welding tip 5 from the head 20 of the barrel 1 and replace the mouthpiece 6. The collected gas welding tip attached to the head 20 with the corresponding gas supply tubes 9 and 8 and produce the weld. If you want to perform cutting work from the head 20 of the barrel 1 disconnect gas welding tip 5. Depending on the fuel gas (acetylene, propane, butane, natural gas) select a nozzle with a respective mixing chamber 11 of the adapter 10, the rod 12 with a Central channel 17 for supplying cutting oxygen and a mixer 14 with the corresponding calibrated holes 15 and 16. A nozzle connected to the head tube of the combustible mixture 9, R is aruego gas on the barrel 1, regulate the amount of flame at the outlet of the mouthpiece 6, heat the metal, and then, opening the valve 2 of the cutting oxygen, producing metal cutting. After cutting alternately close the valve 2 of the cutting oxygen, fuel gas valve 4 and the valve 3 oxygen for combustion. Thus, when changing nozzles in the device remains constant barrel with valve group and the head 20 with tubes for gas supply to the nozzle.

During the reverse stroke fuel mixture burns only in the nozzle channel 18 of the mouthpiece 6 or mixing chamber 11 of the adapter 12 gas welding or gas cutting nozzles 5 or tips for straightening and straightening and because it has no minimum, with the possible explosion of the reverse shock may not cause rupture of the device that ensures the safety of the work, and carried away the combustible mixture through the outer mouthpiece 18 is thrown to the outside, and is protected from the destruction of the device and ensures the safety of employees. After clearing kick back block all valves and repair replacement node.

The advantages of this design of the device for flame treatment of metals is as follows: - working gases are transported to Solovay channel from STL in the nozzle channel; - explosive fuel-air mixture is only working in the nozzle channel, and consequently has the minimum possible volume that attack can cause rupture of products that guarantee a sharp increase safety of operations; - the design of the device provides for interchangeable heads designed to perform various functions, such as cutting, welding, brazing and heating during straightening or edit, with irremovable remain the barrel and cylinder with tubes for the transportation of gases, which are fixed nozzles; - the use of swirl allows you to produce high-quality mixing of gases in the minimum volume of the mixing chamber; - as to allow the channel is directly connected to the mixing chamber, when the abnormal situation occurs explosion, possible only light claps, because the resulting high pressure to allow discharged through the channel.

Claims

1. Device for flame treatment of materials containing barrel with channels for supplying the fuel gas, the cutting oxygen and oxygen for combustion, connected respectively with pipes for supplying fuel gas cutting oxygen and oxygen for combustion, is it gas, the cutting oxygen and oxygen for combustion mounted on the head, a removable cap configured to mount on the head and provided with an adapter with a conical mixing chamber and a rod with a conical shank located in said cone-shaped mixing chamber, which has one end fixed in a removable tip, and on the other end is mounted mixer, concentrically located on the rod, while the mixer is made with holes for mixing gases and communicating with them holes for supplying the fuel gas and oxygen burning, connected to the tubes for supplying, respectively, the fuel gas and oxygen for combustion, with holes for mixing gases are communicated with a conical mixing chamber adapter.

2. The device under item 1, characterized in that the tapered shank of the rod is made in the form of a swirl with a screw surface.

3. The device under item 1 or 2, characterized in that the interchangeable head done cutting, the bar is the Central channel for the supply of oxygen connected to the corresponding supply tube oxygen head, a removable nozzle tip is made in the form of a mouthpiece with soplao under item 1 or 2, characterized in that the interchangeable head is made of gas-welding, with replaceable NIB made in the form of a mouthpiece with a nozzle channel, and a tapering portion of the conical mixing chamber of the adapter facing the mouthpiece.

5. The device under item 1 or 2, characterized in that the interchangeable head is made for straightening and straightening, with replaceable NIB made in the form of a sleeve with a wall with a through hole, and an expanding portion of the mixing chamber of the adapter facing the replaceable tip.

 

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