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For the short‐cycle method the weld time is approx. 10ms ‐ 100ms.
1.5 Welding Elements
According to the short-cycle method threaded studs (SC-B; SC-Z), in-
ternal inserts
(SC-1) and pin studs (SC-S) of various dimensions and
materials can be welded.
In keeping with the drawn-arc method threaded studs, head studs and
cylinder pins and
other welding elements (according to EN ISO 13918)
can be welded.
The following conditions must be observed:
• The weld gun has been set to the studs to be welded in the fac- tory
• The stud type is noted on the type plate of the gun
1.6 Ceramic Ferrules
Ceramic ferrules (according to EN ISO 13918) are used when welding
in keeping with
the drawn-arc method. They form a combustion chamber around the weld, which
centers the arc and protects the user
against welding spatter.
In addition to this, the cooling down rate of the weld is reduced and an
even shape of the
bead is achieved.
The following conditions have to be observed:
• An appropriate ceramic ferrule is required for every stud diameter
• For differing ceramic ferrules corresponding ceramic ferrule
holders are needed
The LFH 000 catalogue offers an overview of the Nelson ceramic ferrule product range.
.
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