Composition of BÃHLER metal powders - Tenica

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The powder is also precipitated under inert gas. This guaranteesthat the powder cools down without harmful surfaceoxidation. Low oxygen contents of the metal powders arethe result. It is necessary to screen the powder to the requiredgrain size before using the powder for spraying, plasmatransferred arc welding or sintering. This is done in modernscreening units or air separators.BÖHLER has a modern five-strand, horizontal continuouscasting machine for the production of hardfacing rods. Forthis production, the ingots have to be liquefied in an inductionfurnace the molten metal is then decanted into a“Tundish”. To reach the optimal weld ability of the qualities,the melt is washed during the process with shielding gas. Therods are straightened and then separated to the lengthrequested by the customer. On request the surface of therod can be ground.The metal powders and casting rods are subjected to extensivequality controls. For determination of the chemicalcomposition a laboratory with modern analytical equipmentis used. Equipment for carrying out screen analyses as wellas measurements of the flow rate, bulk density, hardness andmechanical technological properties is part of the standardequipment of the laboratory.Straightening the casting rods.6
Screen analyses instrument to determine the powder grain size.Optical emission spectrometer (OES) for thedetermination of the chemical analysis.View through a scanning electronmicroscope of gas atomizedspherical metal powder grains.7
Page 1: METAL POWDER AND CASTING RODS
Page 4 and 5: Everything under control:The know-h
Page 8 and 9: Hardfacing and thermal sprayingMeta
Page 10 and 11: Flame spray weldingFlame spray weld
Page 12 and 13: Flame sprayingPowder flame spraying
Page 14 and 15: Plasma and high-velocity flame spra
Page 16 and 17: Hardfacing process with casting rod
Page 18 and 19: Typical properties of metal powder
Page 20 and 21: Use of BÖHLER metal powdersGrade A
Page 22 and 23: Composition of BÖHLER casting rods
Page 24 and 25: Deliverable dimensions of BÖHLER c
Page 26 and 27: Physical propertiesThermal expansio
Page 28 and 29: Corrosion behaviour of BÖHLER meta
Page 30 and 31: Practical tips regarding hardfacing
Page 32: Published by BÖHLER WELDINGBöhler

Composition of BÃHLER metal powders - Tenica

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Composition of BÃHLER metal powders - Tenica