1. Electric arc welding method

2. Ac pulse arc welding method

3. Apparatus and method for manual metal arc welding

4. (a)submerged arc welding;

5. Electric arc welding machines

6. Gas arc welding machine and arc cutting machine

7. Spatter model of CO _ 2 arc welding based on partial least - square regression method.

8. Flux-Cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process

9. Electric welding machines, electric arc welding apparatus, electric soldering apparatus

10. Oxygen, acetylene and electric arc welding;

11. Arc welding equipment - Part 12: Coupling devices for welding cables

12. Arc welding equipment — Part 12: Coupling devices for welding cables

13. Oxygen, acetylene and electric arc welding

14. Arc welding equipment — Part 3: Arc striking and stabilizing devices

15. Arc welding equipment — Part 7: Torches

16. — welding transformers, specifically designed for use in arc welding equipment or resistance welding equipment,

17. Development of auxiliary welding materials and arc welding and cutting products

18. Electric arc welding apparatus (other than machines)

19. Arc welding equipment — Part 5: Wire feeders

20. Electric power supply equipment for electric arc welding stations and cored welding wires

21. Arc welding equipment -- Part 11: Electrode holders

22. Arc welding equipment — Part 11: Electrode holders

23. Arc welding equipment — Part 2: Liquid cooling systems

24. Fully or partly automatic electric machines for arc welding of metals (including plasma arc)

25. Wire feed and wire advancing equipment for electric welding apparatus and arc welding apparatus

26. Wire feed devices and wire advancing equipment for electric welding equipment or arc welding apparatus

27. Arc welding equipment — Part 10: Electromagnetic compatibility (EMC) requirements

28. Welding current generators, converters, transformers and control devices for electric arc welding and parts thereof

29. A new welding torch was designed for ultra - narrow welding with flux strips constraining arc.

30. Electric welding apparatus and electric arc-welding apparatus and accessories therefor, included in class 9, in particular blanks for welding power sources, welding electrodes

31. Quasi - keyhole arc welding process is a typical nonlinear system.

32. Methods for influencing the arc during arc fusion welding and devices for carrying out the methods

33. Flux Cored arc welding (FCAW) is a semi-automatic arc welding process that is similar to metal active gas (MAG) welding.FCAW uses a continuous wire fed electrode, a constant-voltage welding power supply, and similar equipment to MAG welding.

34. Railway applications — Track — Restoration of rails by electric arc welding

35. Protective gas mixture for arc welding of aluminum and alloys thereof

36. Bobbin tool Friction Stir Welding is a new welding method

37. Stable arc, less spatter and deep penetrationcan ensure welding quality well.

38. Arc welding processes may be manual, semi-automatic, or fully automated.

39. Welding monitoring system and method

40. Method for controlling a stand-alone inverter with a transformer output for rectangular wave ac arc welding and device for the implementation thereof

41. It is indicated from the test results that the arc burns stably in ferrules shielded stepping arc stud welding.

42. High strength welding joint having excellent impact toughness at very low temperature, and flux-cored arc welding wire therefor

43. Flux-cored arc welding material having remarkable impact resistance and abrasion resistance

44. The invention relates to a method and a device for rectangular wave AC arc welding and can be used for the gas-shielded welding of aluminium and alloys thereof using a non-consumable electrode.

45. Crater cracks occur in the crater when the welding arc is terminated prematurely.

46. Method for controlling and/or adjusting a welding process and welding device for carrying out a welding process

47. Apparatus and method for welding with ac waveform

48. Electric arc welding apparatus, apparatus for recharging electric accumulators or batteries, electric batteries, electric couplings

49. Provided are a high strength welding joint having excellent impact toughness at very low temperature, and a flux-cored arc welding wire therefor.

50. How Antra AH7-360-0000 Auto Darkening Lens works When 4 Arc sensors detect any welding arc, control unit switch on 2 LCD shutters, arc sensors detects no arc, the control unit switch off LCDs

51. Welding wire feeder power control system and method

52. Disclosed are a welding monitoring system and method.

53. System and methods of using variable waveform ac arc welding to achieve specific weld metal chemistries

54. The CONTROL WELD Process supplies a uniform arc which is particularly advantageous when welding thin steel.

55. Method of decreasing spatter of short - circuit transfer welding.

56. Non-linear adaptive control system and method for welding

57. Summary Under the maintenance shop supervisor, maintains and repairs buoys and light-towers using electric-arc, gasshielded-arc and oxy-acetylene welding equipment; and performs related duties.

58. The present invention relates to a flux-cored arc welding material having remarkable impact resistance and abrasion resistance.

59. Super high-strength flux cored arc welded joint having excellent impact toughness, and welding wire for manufacturing same

60. Friction stir welding method for structural steel and method of manufacturing joint for structural steel

61. Method for butt welding cross-linked polyethylene pipes (pe-x pipes)

62. Welding helmet having automatic wireless light-blocking means and control method therefor

63. Double-side friction stir welding method for metal plates having gap between abutting portions

64. A method for measuring the electric quantities of an ac electric-arc furnace

65. Welding member for recycling railway wheels and method for recycling railway wheels using same

66. Method for welding upper rail of seat track for vehicle seat and adaptor bracket

67. The infrared photosensitive tube (8) is used for detecting welding arc light and controlling single chip microcomputer (1) via the trigger circuit (10).

68. Hoods for welding, suits for welding, aprons for welding, gloves for welding, weld seam gauges, cored wire electrodes

69. The method and technology of oxyacetylene flame braze welding for main cable wrapping at Shantou Bay Bridge were introduced, and the difficulties of the welding were analyzed.

70. If a short circuit occurs during the welding process between the welding rod (13) and a work piece (4) once the arc (15) is struck for the first time, the advance movement of the welding rod (13) is stopped or reversed in order to disrupt said short circuit.

71. Method for operating an electric arc furnace to build up and maintain foamed slag

72. Due to competition from the acetylene-fueled cutting torch and from arc welding, the oxyhydrogen torch is seldom used today, but it remains the preferred cutting tool in some niche applications—see oxy-fuel welding and cutting.

73. Flux-cored arc welding wire for providing superior toughness and weldability to a welded joint at a low temperature, and welded joint using same

74. The institute's faculty and students contributed to and invented China's first analog computer, the first intelligent chess computer, and the first arc-welding robot.

75. Since the present invention can carry out, differently from a conventional technique, two kinds of welding at one position without moving parts when carrying out the spot welding and the carbon dioxide arc welding for two or more members, labor costs can be reduced and productivity can be maximized, and each welding facility can be individually separated, thereby facilitating maintenance.

76. The structure and method of use thereof suppresses or eliminates arc-downs or glow discharges.

77. Welder, Combination Basic Point Rating: 474 Supervisory Rating: n/a Summary Under the maintenance shop supervisor, maintains and repairs buoys and light-towers using electric-arc, gas-shielded-arc and oxy-acetylene welding equipment; and performs related duties.

78. Method for manufacturing a workpiece by friction welding to reduce the occurrence of abnormal grain growth

79. Antra AH7-860 Series welding helmet is featured Antra AH7-860 Series welding helmet is featured with the smart chip controlled 4 sensor auto darkening lens, which is extremely fast responsive to electric arc from TIG, MIG, MMA or Plasma applications

80. All goods excluding welding products and welding consumables