Quantcast Section 2 Wearfacing

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Abrasion-resistant alloys have poor impact properties.
where information on the recommended rod can be
Conversely, impact-resistant alloys have poor abrasion
resist ante. The higher an alloy's abrasion resistance,
the lower its ability to withstand impact, and
vice-versa. Between these two extremes are numerous
wearfacing alloys that combine varying degrees of
resistance to abrasion with the ability to absorb a fair
Remove dirt, oil, rust, grease and other contaminants
amount of impact. The selection of a wearfacing alloy
before welding. If you do not, you are inviting
for a certain application is determined by the
porosity and possible spalling. Prepare a sound
requirements of its anticipated service.
foundation by removing fatigued, rolled-over metal.
Repair cracks with compatible electrodes.
The Seabee Welder can greatly extend the usable life
of construction equipment by selecting the appropriate
alloy and applying it with the correct procedure. A
regular wearfacing program extends equipment life,
Preheating of base metal is sometimes necessary to
allows it to operate more efficiently, with less down
minimize distortion, to prevent spalling or cracking or
time, and greatly reduces the need for spare parts.
to avoid thermal shock. Preheat temperature is
influenced by two important factors; the carbon
The following section illustrates various parts of
content and alloy content of the base metal. The
construction equipment and describes the correct repair
higher the carbon content, the higher the required
welding procedures to use on them. Each diagram
preheat temperature. The same is true, to a slightly
provides one or more electrodes that maybe used as
lesser degree, for the total content of other alloys.
alternates whenever the most desirable rod is not
After the surface has been brought to the required


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