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Feeding lubricant for cored welding electrode, cored welding electrode and gmaw process

A lubricant and welding rod technology, applied in GMAW process, problem-provided for use in GMAW equipment, can solve problems such as not providing enough feeding capacity

Active Publication Date: 2012-12-26
LINCOLN GLOBAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Accordingly, it will be appreciated that conventional wire-feeding lubricants have an inherent problem - those wire-feeding lubricants that provide the desired level of feedability (lubricity) for use in GMAW equipment generate unacceptable amount of hydrogen contamination, and those wire feed lubricants that produce acceptably low levels of hydrogen contamination do not provide sufficient feed capacity (lubrication capacity)

Method used

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  • Feeding lubricant for cored welding electrode, cored welding electrode and gmaw process
  • Feeding lubricant for cored welding electrode, cored welding electrode and gmaw process
  • Feeding lubricant for cored welding electrode, cored welding electrode and gmaw process

Examples

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Embodiment 1 and 2 and comparative Embodiment A

[0073] Examples 1 and 2 and Comparative Examples A, B and C

[0074] According to the present invention, using different amounts of MoS 2 Feed Lubricant Composed of Mixture with Soap Base Lubricant Repeat the Diffusible Hydrogen and Feedability Control Experiments above. The specific welding wires used were the same as those used in the control experiments above, which were made so as to have a surface sodium content of 4-10 counts by XRF after fabrication (before application of the feed lubricant). Additionally, in one experiment, Comparative Example B, substantially the same feed lubricant as Lubricant F of Table 1 was used, except that all MoS in the lubricant 2 Replaced by graphite. The composition of the various feed lubricants used is set forth in Table 2 below:

[0075] Table 2 Composition of Feed Lubricant

[0076] Example Composition (MoS 2 Wt.% / sodium soap Wt.%) 1 80 / 20 A 90 / 10 B All MoS 2 Lubricant F of Table 1 replaced by...

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Abstract

A feeding lubricant for use on a welding electrode comprises about 10 to 40 wt.% of at least one soap-based lubricant, about 40 to 90 wt.% of at least one solid particulate lubricant selected from MoS2, WS2, ZnO, graphite and PTFE and up to 20 wt.% of at least one optional additional particulate lubricant ingredient.

Description

[0001] The present invention relates to feed lubricants for cored electrodes, cored electrodes and the GMAW process. Background technique [0002] Gas metal arc welding (GMAW), sometimes referred to by its subtypes as metal inert gas (MIG) welding or reactive gas (MAG) welding, is a semi-automatic or automatic arc welding process in which continuous And consumable wire consumables ("wire") and shielding gas are fed through the torch. [0003] figure 1 and figure 2 The diagram illustrates the basic design of a conventional industrial GMAW system. As shown in these figures, the GMAW system 10 includes a power supply 12, a wire drive assembly 14, a shielding gas supply system 16, and a cable assembly 18 for carrying electrical power, wire and shielding gas to a workpiece 20 to be welded. The wire drive assembly 14 typically includes a spool frame 22 for carrying a drum 24 of continuous consumable wire welding material, and a drive mechanism 26 including one or more drive whee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/36B23K35/365B23K35/40
CPCB23K35/36C10M2201/0626C10N2210/02C10M2207/1265C10N2230/12C10N2210/01C10M2207/125C10M2201/065B23K35/365C10M169/02C10N2240/202C10M2201/0666B23K35/40C10M2201/062C10M2207/1253C10N2230/06B23K35/404C10M2201/041C10M2213/0626C10N2240/408C10M2201/066C10M2201/0656C10M2201/0416C10N2250/10C10N2250/12C10N2010/02C10N2010/04C10N2030/06C10N2030/12C10N2050/10C10N2040/17C10N2040/246C10N2050/015
Inventor R·潘戴V·B·拉简J·V·里德C·I·西德斯
Owner LINCOLN GLOBAL INC