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Electrode process performance
2013-04-01 by xiugai
Copper Welding Electrode process performance:
1, the electrodes of the use of performance:
(1) the electrode process performance - usually refers to the operating performance of Nickel Electrodes: Electrode whether welding job easily.
(2) electrode welding performance - whether weldments are fully connected (for welding defects), as well as welded joints meet the requirements (mechanical properties and heat resistance, corrosion resistance and other special properties of the joints).
(3) the efficiency of the welding rod - welded construction whether the welding efficiency improved, lower costs of labor and materials.
2, the electrode process performance:
(1) the electrode arc stability: an arc in the welding process to maintain stable, difficult to shake and extinguishing characteristics. Also have an impact on the arc stability of the electrode eccentric and damp.
(2) the applicability of the various welding positions: suitability of the electrode pairs of the operation of a variety of spatial positions, is an important process of the electrode performance. Various grades of welding rod welding position generally applicable provisions in the electrode manual.
(3) the forming of the weld performance: refers to the weld geometry and surface quality of the weld.
(4) slag removal: its quality has a direct impact on of welders working conditions welding productivity and weld quality. Strong oxidizing slag off slag poor. J422 J426's like slag removal.
(5) the depth of penetration of the weld: the electrode factors, the composition and thickness of the drug skin is the main factor affecting the weld penetration depth. The penetration depth of the thick-coated electrode than thin drug skin. Thick steel butt weld penetration larger electrode groove or open a small slope mouth can not open, so that the production efficiency.
(6) electrode deposition coefficient: the welding process, welding rod per unit time through unit welding current melt deposited metal weldment called deposition coefficient (α). The level of productivity in the electrode deposition coefficient marks the size of the welding process.
(7) the size of the spatter: splash big will not only increase the post-weld cleanup time, wasted electrode. Electrode splash of the type of electrode covering. The electrode coating moisture, splash also increases. Of course, also associated with the welder performance, polarity and other factors.
3, the impact factors of the operating performance of the welding process:
(1) electrode process performance
(2) welder skills
(3) electric welding characteristics
(4) use of a welding tool (e.g., torch)
(5) the material of the base material
(6) Thickness
(7) joint form and size
(8) the welding parameters (such as current, voltage, welding speed, etc.)
(9) the welding position
(10) other welding conditions (such as welding environment, shielding gas, etc.)
Therefore, in order to accurately assess the process performance of the electrode should be fixed welders, welding machines, welding tools, test materials, welding conditions above factors, in order to exclude the impact of these factors.
4, the assessment the electrode process performance method:
To judge by observing the following items:
(1) the occurrence of the arc: start pilot arc of difficulty; (broken arc re-ignition re the pilot arc Ease). (2) the state of the arc: arc stability, including persistence (whether broken arc, wheezing, etc.) and centralized; blow-force size.
(3) molten state: a sleeve shape; drug skin melted uniformity.
Slag (4): flowability; clear the degree of difficulty; coverage uniformity.
(5) spatter: the degree of difficulty of occurrence of state (the size and the number of spatter); clear.
(6) the weld appearance: the solder wave thickness; forming (the weld residual high).
(7) the occurrence of the state of the gas and soot: the occurrence of the amount of smoke constituents.
1, the electrodes of the use of performance:
(1) the electrode process performance - usually refers to the operating performance of Nickel Electrodes: Electrode whether welding job easily.
(2) electrode welding performance - whether weldments are fully connected (for welding defects), as well as welded joints meet the requirements (mechanical properties and heat resistance, corrosion resistance and other special properties of the joints).
(3) the efficiency of the welding rod - welded construction whether the welding efficiency improved, lower costs of labor and materials.
2, the electrode process performance:
(1) the electrode arc stability: an arc in the welding process to maintain stable, difficult to shake and extinguishing characteristics. Also have an impact on the arc stability of the electrode eccentric and damp.
(2) the applicability of the various welding positions: suitability of the electrode pairs of the operation of a variety of spatial positions, is an important process of the electrode performance. Various grades of welding rod welding position generally applicable provisions in the electrode manual.
(3) the forming of the weld performance: refers to the weld geometry and surface quality of the weld.
(4) slag removal: its quality has a direct impact on of welders working conditions welding productivity and weld quality. Strong oxidizing slag off slag poor. J422 J426's like slag removal.
(5) the depth of penetration of the weld: the electrode factors, the composition and thickness of the drug skin is the main factor affecting the weld penetration depth. The penetration depth of the thick-coated electrode than thin drug skin. Thick steel butt weld penetration larger electrode groove or open a small slope mouth can not open, so that the production efficiency.
(6) electrode deposition coefficient: the welding process, welding rod per unit time through unit welding current melt deposited metal weldment called deposition coefficient (α). The level of productivity in the electrode deposition coefficient marks the size of the welding process.
(7) the size of the spatter: splash big will not only increase the post-weld cleanup time, wasted electrode. Electrode splash of the type of electrode covering. The electrode coating moisture, splash also increases. Of course, also associated with the welder performance, polarity and other factors.
3, the impact factors of the operating performance of the welding process:
(1) electrode process performance
(2) welder skills
(3) electric welding characteristics
(4) use of a welding tool (e.g., torch)
(5) the material of the base material
(6) Thickness
(7) joint form and size
(8) the welding parameters (such as current, voltage, welding speed, etc.)
(9) the welding position
(10) other welding conditions (such as welding environment, shielding gas, etc.)
Therefore, in order to accurately assess the process performance of the electrode should be fixed welders, welding machines, welding tools, test materials, welding conditions above factors, in order to exclude the impact of these factors.
4, the assessment the electrode process performance method:
To judge by observing the following items:
(1) the occurrence of the arc: start pilot arc of difficulty; (broken arc re-ignition re the pilot arc Ease). (2) the state of the arc: arc stability, including persistence (whether broken arc, wheezing, etc.) and centralized; blow-force size.
(3) molten state: a sleeve shape; drug skin melted uniformity.
Slag (4): flowability; clear the degree of difficulty; coverage uniformity.
(5) spatter: the degree of difficulty of occurrence of state (the size and the number of spatter); clear.
(6) the weld appearance: the solder wave thickness; forming (the weld residual high).
(7) the occurrence of the state of the gas and soot: the occurrence of the amount of smoke constituents.
keywords: stainless steel welding rod
