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Thermal Spray PTA

Thermal Spray PTA

GENERAL FEATURES

Thermal (or flame) spraying is a thermal coating process. The powdered filler material is partially melted with a gas flame and at the same time accelerated by the combustion gases towards the surface to be treated. The partially fused powder particles on impact with the component surface tend to deform and create a coating characterized by a lamellar structure. The plasma PTA (plasma transferred arc) coating differs from spraying processes as it is a real welding process that gives rise to a metallurgical bond between the base material and the filler powders. DAIKO has formulated powders for the main fields of application of thermal coatings and in particular consumables that guarantee excellent anti-corrosion and anti-wear protection. All powders can be supplied in various grain sizes, depending on the application process.

SPRAY – SPRAY AND FUSE – PTA

Product	Description	Hardness
DAIKOSP 20 Cr	Ni-based powder, for coatings on steels and cast irons generally very malleable and workable to the tool. Specification for repairing glass sector molds.	20 HRC
DAIKOSP 25 Cr	Ni-based powder, for coatings on steels and cast irons generally specific for the glass sector, where it requires greater abrasion resistance.	25 HRC
DAIKOSP 35 Cr	Powder for coatings on cast iron molds specific to the very resistant glass sector, to shocks and pressures. Workable to the tool.	35 HRC
DAIKOSP 40 Cr	NiCrB-basedpowder, for wear-resistant coatings on cast iron and steels,very resistant to pressure and wear. Specification for molds, resistant to corrosion.	40 HRC
DAIKOSP 50 Cr	NiCrBSi-basedpowder, for wear and shockproof coatings,also resistant to corrosion. Specification for earthmoving sector and refractory industry.	50 HRC
DAIKOSP 60 Cr	NiCrBSi-basedpowder with a high Cr content, very resistant toabrasion, without shocks. Specification for excavation sector, and ceramic and brick industry.	60 HRC
DAIKOSP 70 WC	NiCrBSi-based powder with high percentage of tungsten carbides for strongly resistant to wear and abrasion. The deposit is not workable to the tool.	67 HRC