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Line 1: − {{about|the process|the material|Solder}} − {{redir|Dry joint|types of switch or relay contacts|Dry contact}} − {{redir|Cold joint|thermocouple contacts|Cold junction (thermocouple)}} −
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[[File:Desoldering.jpg|thumb|upright=1.5|Desoldering a contact from a wire]]
[[File:Desoldering.jpg|thumb|upright=1.5|Desoldering a contact from a wire]]
'''Soldering''' ([[General American|AmE]]: {{IPAc-en|ˈ|s|ɒ|d|ər|ɪ|ŋ}}, [[Received Pronunciation|BrE]]: {{IPAc-en|ˈ|s|ɒ|l|d|ər|ɪ|ŋ}}), is a process in which two or more items (usually metal) are joined together by melting and putting a [[filler metal]] ([[solder]]) into the joint, the filler metal having a lower [[melting point]] than the adjoining metal. Soldering differs from [[welding]] in that soldering does not involve melting the work pieces. In [[brazing]], the filler metal melts at a higher temperature, but the work piece metal does not melt. In the past, nearly all solders contained [[lead]], but environmental and health concerns have increasingly dictated use of [[lead-free solder|lead-free alloys]] for electronics and plumbing purposes.
'''Soldering''' ([[General American|AmE]]: {{IPAc-en|ˈ|s|ɒ|d|ər|ɪ|ŋ}}, [[Received Pronunciation|BrE]]: {{IPAc-en|ˈ|s|ɒ|l|d|ər|ɪ|ŋ}}), is a process in which two or more items (usually metal) are joined together by melting and putting a [[filler metal]] ([[solder]]) into the joint, the filler metal having a lower [[melting point]] than the adjoining metal. Soldering differs from [[welding]] in that soldering does not involve melting the work pieces. In [[brazing]], the filler metal melts at a higher temperature, but the work piece metal does not melt. In the past, nearly all solders contained [[lead]], but environmental and health concerns have increasingly dictated use of [[lead-free solder|lead-free alloys]] for electronics and plumbing purposes.