Gaza to the burner comes on a rubber hose, worn on the nipple for oxygen and an acetylene 2. Further, the oxygen goes through the tube 3, the acetylene - the tube 4 and the approach to adjusting valves for oxygen and acetylene 5 (not shown). Then the gases are fed to the injector 6, further into the mixing chamber 7 and the tip of the tube goes into the mouthpiece 10, the output of the burn, which, forming a welding flame. The barrel and tip are connected nut 9. Gas control valves are conveniently located and allow the welder to adjust the burner, without interrupting the operation, the fingers of the same hand that holds the handle. The location of valves favorably shifts the center of gravity burners, improves balance and reduces fatigue welder.
A significant advantage of the burner HS is approximately the same oxygen pressure of about 3 atm for all sizes of tips. Standard burners are made of four types-GS-1 GS-2 GS-3 GS-4.
GS-1, a small or micropower, used for welding of thin and very thin metal, 0.05-0.6 mm. It comes with two tips number 00 with acetylene flow rate 10-25 l / h and the number 0 at a rate of 25-60 l / h, 0.24 kg weight of the burner. Burner HS-2, low-power, is used for welding of thin metal, 0,3-4 mm, with four tips, № 0, 1, 2 and 3, weight 0.32 kg burner. Burner HS-3, the average power, the most widely used in industry for welding metal thickness 0.5-30 mm, equipped with seven tips, № 1,2, 3, 4, 5, 6, 7, Weight Burner 0.5 kg . The burner is a great power, the HS-4 for metal thickness of 30-100 mm, equipped with two tip number 8 with a flow rate of acetylene 2800-4500 l / h and the number 9 with a flow rate of acetylene 4500-7000 l / h, weight 1.34 kg burners . When the ignition burner, first open the oxygen valve and a jet of oxygen creates a vacuum in the chamber of the injector, producing a leak of acetylene. Next, open the acetylene valve and ignite the mixture. Regulate the flame acetylene valve until the proper character of the flame and the gas composition: size, shape and color the inside of the flame, the so-called core of the flame. extinguish the flame in the reverse order: first close the acetylene valve, and then oxygen. Acetylene valve cover and when the reverse shock, faults noticed the burner and burner malfunction, etc. are usually affects the appearance of the flame, which receives an irregular shape. welding torch is quite complex and accurately manufactured instrument and requires careful and gentle treatment. When breaks in the gun rack or hang on a hook in the workplace. With a significant heating of the burner cool dip in a bucket of water, located at the welder's job, the oxygen valve is opened at the same time, eliminating the possibility of water ingress into the burner. Channels can be cleaned just the mouthpiece copper or brass prochischalkami. Use for this purpose steel wire is prohibited as it scratches and develops channel mouthpiece and quickly leads him into disrepair. addition to the normal, standard, widely used in industrial welding torches, there are numerous specific types of burners used relatively rarely. It may be noted a special form of tips for welding in confined spaces, two-and trehplamennye burners, burners for heating, soldering torch, whose mouthpiece has side openings for air leaks, reducing the very high temperature acetylene-oxygen flame, especially the powerful water-cooled torch etc. All these special burners in our industry are very limited application. In recent years, there were special mnogoplamennye welding torches with a lot of flame in a burner.
See also:
Gas Welding Technology
Gas Welding Article
Welding Torches
Universal welding torch GS
Technical Oxygen
No comments:
Post a Comment