RiHui in laboratory to withstand the liquid weld well
RiHui in laboratory to withstand the liquid weld well.Figure 6 demonstrates several test samples after welding.One notes
that the ceramic backing resisted the high heat input during welding,cast locally,protecting the metal of the liquid
weld and offering an appropriate finish to the weld bead. Visual inspection of the root of the weld bead,in other
words,the surface which was in contact with the cordierite ceramic backing,Figure 7,demonstrates the appearance
and finishing of the weld bead,which were considered appropriate and free of surface discontinuities.Testing of
the penetrant fluid also failed to reveal any discontinuities and all welds were deemed to be adequate.
Figure 8 presents the macrographs of the cross section of the root pass obtained using cordierite weld backings on
a 6.4 mm steel plate.One notes that in all the test samples, penetration in the sides of the chamfer was obtained.Only
a small pore appeared in test sample C8,in Figure 8(b), close to the upper part of the bead weld.This discontinuity
observed was not deemed to be critical due to the quality of the weld bead and associated with the MIG-MAG
Table 2.Parameters of welding measured while multipass welding is carried out.
Pass Voltage(V)Current(A)
Supplied By RIHUI Ceramic Welding Backing
Date: 2023-04-10 hits: 548 Return
Spot welding ( Ceramic Backing) 2023-04-10
Ultrasonic welding( RIHUI Backing) 2023-04-10
Spot welding( RIHUI Ceramic Welding Backing) 2023-04-10