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推奨切削条件

  • Protect welds by using weld chamfers, hardfacing over the welds, or positioning the KenCast part to avoid wear on the welds.
  • When using KenCast parts to cover large areas, create a “dead-bed” effect by positioning the castings so that the work material packs between the KenCast pieces (see illustrations).
  • Stagger the placements of the KenCast parts to avoid wearing troughs between the parts.
  • Parts to be welded should be about 70°F (21°C).
  • The KenCast part should not exceed 600°F (315°C) at any time during welding.
  • First, tack weld parts lightly to ensure proper placement before total welding is done.
  • Pre-heating and post-heating of KenCast parts is not usually necessary. However, if the material to which the KenCast part is being applied requires heating, then pre-heat the KenCast part up to 600°F (315°C) (do not exceed 600°F [315°C]). Our KenCast parts have been welded to 4130 and 4140 steel with no pre- or post-heating. Pre-heating is recommended to prevent underbead cracking when KenCast parts are applied to oil-and-gas string components and to high-manganese steels.
  • If weld washout is a concern, we recommend applying hardface material over the welds.
  • Do not weld on the carbide layer of the KenCast part.
  • For identification, the carbide wear surface of the KenCast part is painted black. This is especially helpful for small or irregular shaped KenCast parts. If the KenCast part is marked with a part number, that number is always cast into the steel side of the part.

 

 

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