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UR65

UR65 - RIZZARDI S.R.L

The drawblocks and rings coated with UR65 are used on all types of drawing machines, fully submerged or spray, to draw all types of metals and alloys: Copper, Aluminum, Steel, Alloy, Gold, Platinum, Tungsten, etc.
The need arose to find a versatile material which could eliminate wear problems found in every stage of wire drawing from rod to ultrafine wire.
The UR65 coating is the result of this research. The high density of the Tungsten Carbide Particles and high bonding of these particles give the UR65 coating exceptional results against wear and abrasion.
All of the coating conditions are monitored by a strict computerized analysis, to obtain consistent omogeneity of the hard metal (chemical, and mechanical characteristics).
Our procedure allows the UR65 coating to perfectly penetrate the steel piece combining the two, to form one body.
For this reason, the coating offers absolute resistance to its detachment due to certain impacts or pressure from temperature variations.
Average surface roughness : Ra = .25
μ (metric). 

UR65/B

UR65/B - RIZZARDI S.R.L

Tungsten Carbide Coating having the same composition of the UR65 coating, but with a tighter particle structure.
The impact velocity and exploiting very high available calories, allowing a higher bonding level among the particles, which form a layer suitable to offer a higher control of the microporosity. Consequently, during the grinding procedure, higher finishing grades can be achieved.
Average surface roughness: Ra = .06/.08 μ (metric)
This coating is suitable particularly for drawing wire on multiwires.
Excellent results have also been obtained when used in drawing welding wire and stainless steel.
It necessitates an increment in lubrication and by so doing, its resistance to wear is practically unlimited with excellent quality of the wire produced.

 

UR423

UR423 - RIZZARDI S.R.L

Born from a specific research, this coating of Tungsten Carbide, is extremely suitable for the slip drawing of brass coated steel for steel cord.
Applied and tested with success for several years, the coating offers good resistance to wear while maintaining its brightness unchanged with time.
With its special composition characteristics, it is suitable to perfectly withstand the chemical attacks from the aggressive emulsions.
This coating, as the UR427, due to the form and composition of the Tungsten Carbide Particles, offers a surface with a very low microporosity, obtaining very low average surface  roughness values.
Average surface roughness: Ra = .04/.06 μ (metric).

UR400

UR400 - RIZZARDI S.R.L

This particular alloy made of agglomerate elements is treated at high temperature.
The main characteristic are a good wear resistance even at high temperature and most of all a great resistance to corrosion that could be provoked by the utilization of oil solutions that are chemically aggressive. Furthermore presents very good characteristic to wear to oxidation.
This alloy is extremely compact and it is possible to obtain a finish surface with a max rugosity of Ra = .02/.06 μ (metric).
This coating is utilized in particular conditions where a high wearing exist without damaging the wire quality

UR229

UR229 - RIZZARDI S.R.L

Ceramic coating with characteristics similar to the UR 240. Excellent insulating material, is best suited to be used on annealer conveying pulleys which need electrical insulation and very low inertia.
Color-Black.