Always more often the Glass Market is asking to REDUCE IMPACT OF THE TRACE OF THE MOULD ON THE BOTTLE and consequently we must reduce the dimensions of the welded area of the mould, in particular in the closure area of the two halves. Apart from the esthetic value, this trend may turn into a cost saving, thanks to the increased working speed and to the lower consumption of welding powder. This PERFORMANCE IS OBTAINED with:

• Thin coating of constant thickness. • Reduced HAZ (Heat affected Zone) with a metallurgical

structure not too altered. • Net separation between the base metal and the filler metal. • Limited presence of the base metal in the welded bead.

Provided that you can prepare the mould with a groove of adequate size and shape (with a round bottom and without sharp edges), Commersald can help you obtaining the requested result thanks to its MACHINES BORN FOR GLASS INDUSTRY that assure: � Perfect control of the current and of the tension during welding,

obtaining a smooth welding arc, even with low current. � Constant and regular powder flux, injected precisely in the

welding pool. � Tungsten electrode carefully sharpened. � High precision in the motion and clamping systems.

A Commersald machine grants the utmost flexibility:

JUST CHANGE THE NOZZLE AND THE

PARAMETERS TO SWITCH BETWEEN TRADITIONAL PTA HARDFACING AND NEW PTA MICROWELDING

COMMERSALD IMPIANTI SRL Office and factory: www.commersald.com Via Labriola 42, Modena, Italy

impianti@commersald.com rev 0_2016 Tel: +39059822374 Fax: +39059333099

PTAW micrography

Thermally altered zone

LASER micrography

Thermally altered zone

WELDING TEST

Nickel base powder KOY23PSP - 25/30 HRc Tests executed also with the support of Modena Centro Prove Srl, qualified as International Welding Technologist

PTA MICROWELDING

PTA STANDARD LASER

Groove size mm 2,2 X 1,2 4,0 X 2,0 2,2 X 1,2

Linear welding speed mm/sec 7,5 0,5 6,5

Width of the bead mm 4,0 10,0 4,2

Depth of the bead mm 1,4 1,8 1,5

Deposition rate kg/h 1,7 2,0 1,5

Powder efficiency % 91 94 85

Thickness of the stock mm 0,5 0,5 0,5

Min/max thickness in contact with the glass mm 0,3 - 1,0 0,3 - 1,0

TAA width mm 0,2 2,0 - 3,0 0,3

Metallurgical structure analyzed in all the three cases: Graphite from traces to diffused; rare presence of spheroids. Occasional porosities with maximum size of 0,02 mm. Perlite between 14% and 20%. N°800 nodules per mm 2

With the Commersald Impianti technology you can reach a result quite similar to laser welding: obtaining a reduced welded area, with a bead that is thin and regular, but maintaining and high efficiency of the process. Even AN EXISTING MACHINE can be easily adapted to the new technical request of your customers, with a different setup and a new welding nozzle.

YOU ARRANGE THE PREPARATION AND COMMERSALD

TAKES CARE OF ALL THE REST