Lahner KG is the General Agent of SIFCO Applied Surface Concepts for Austria Czech Slovakia Hungary Slovenia Croatia Bosnia & Selective Plating

Transcription

1 Industriestraße A / Brunn am Gebirge A U S T R I A Tel.: 0043 (0) Fax: 0043 (0) office@lahner.at Web: Lahner KG is the General Agent of SIFCO Applied Surface Concepts for Austria Czech Slovakia Hungary Slovenia Croatia Bosnia & Republic Herzegovina Selective Plating The SIFCO Process is a portable method of electroplating localized areas without the use of an immersion tank. Damage from wear, corrosion, or mis-machining can be repaired using SIFCO Process plating. The SIFCO Process deposits can also offer wear resistance, low electrical contact resistance, or corrosion protection. 1

2 Sifco Process Advantages: Portable Process for on-site repairs Minimal masking and disassembly Custom, engineered solutions More timely than other plating methods Increase service life of components and equipment Superior technical expertise Quality plating results The SIFCO deposits have excellent adhesion and can be plated at rates that are 30 to 60 times faster than conventional tank plating. On-site inspection and repairs bring advantages and reduce costs for: Disassembly Reassembly Transport to repair-shop and back again Costs for replacement parts Long dwell times Loss of production As you can see on the following pages we re able to use the Sifco Process for: Coating on all kinds of metal Maintenance oversized workpieces* * almost everywhere in installed condition Repairs on areas with difficult access Repairs because of: abrasion, spots/cracks, spot weld undersize (also for inner diameter and for outer diameter and much more ) Partial plating (chromium plating as well!) 2

3 AEROSPACE Our company is APPROVED SUBKONTRACTOR of AUSTRIAN AIRLINES TYROLEAN AIRWAYS Cadmium plating on landing gears 3

4 AEROSPACE CORROSION PROTECTION IS VERY IMPORTANT FOR AIRLINE / AVIATION BUSINESS! Rivets on wings Hinges on Main Landing Gears Pins on helicopter blades Anodising of Aluminium profiles 4

5 AEROSPACE worn parts from an oldtimer / vintage aircraft All scratches gone and perfect surface after our galvanising method 5

6 ENGINEERING Partial copper plating as protection against rubbing and seizing for Oil and Gas Industry Ball valve: Filling up of pores and imperfections with Copper and final coating with Cobalt Pulley for cable car: Nickel plating of bearing seat back to fit Location of repair: on top of a mountain! 6

7 ENGINEERING Inner plating of some fittings with 50µm cobalt plating Wheel Suspension train parts: worn out & badly damaged sealing area 7

8 ENGINEERING Lift rod repair: repair of more than 250 spots!!! Shortest possible downtime due to repair of defects in-situ condition! 8

9 ENGINEERING VERY DEEP DAMAGES! REPAIR FINISHED! 9

10 ENGINEERING Different construction machines with a lot of hydraulic parts! 10

11 ENGINEERING ADVANTAGE: Working on-the-spot = no parts or machine relocation needed! 11

12 ROLLER REPAIR Imperfection due to bad repair of former outside company BIG DAMAGES 100% FUNCTION! Repair of imperfection on special printing cylinder with Copper & Nickel (100 tons of compacting pressure!) 12

13 ROLLER REPAIR Impressed screws damage simultaneously several rolls! Imperfections on rolls cause recurrent damages/failure on the end-product! BIG ADVANTAGES: In-situ repairs Saving of money No disassembly No reassembly No expensive and time consuming replacement action Short machine standstill Less loss of production time 13

14 ELECTRICAL INDUSTRY MOLD MAKING Silver plating on electrical contacts = low electrical contact resistance! Tin plating on contact areas Correction of defects on mold parts 14

15 SPECIAL COATINGS 100 µm Copper plating on contact area (35000 Volts), of furnace for steel production Nickel plating / repair of total bearing surface shank of concrete pump E X A M P L E O F R E P A I R damage/scratches Copper plating / grinded Cobalt plating / grinded partial Chrome plating 15

16 SPECIAL COATINGS 200 µm Nickel coating on bearing carrier Ø 1,8 m Nickel coating on piston rod for a blast furnace 16

17 SPECIAL COATINGS Repair of cavities and material defects on sliding surfaces Overlong rotors with many damages and surface defects 17

18 SPECIAL COATINGS Jobs on the inside are difficult but if there is a little space for the anode and for a grinding job repair can be done! Repairs / plating jobs on inner side of parts DIFFICULT ACCESS! larger external diameter or reduction of inner diameter 18

19 SPECIAL COATINGS Restoration of ornaments copper plating to make welding invisible Nickel High Temperature plating on Copper-Beryllium Bronze plating on bearing carrier Diameter - Ø 1,2 m Repair of sliding surface on Aluminum 19

20 SPECIAL COATINGS ON BIG PARTS 100 µm Nickel plating on shaft seat 200 µm Nickel plating repair inner plating on bearing carrier 50 µm Nickel plating on bearing shield SELECTIVE PLATING 20

21 SPECIAL COATINGS ON BIG PARTS before and after Plating area corrosion removed and 30 µm Zinc plating on shaft extension in a hydroelectric power plant Repair Nickel plating on Chrome surface Heating roll Ø 2,4 m VERY DIFFICULT ACCESS! SELECTIVE PLATING 21

22 SPECIAL COATINGS ON BIG PARTS Zinc plating job due to Anti-corrosion on all outer surfaces At first removal of deep corrosion under use of our SIFCO System Repair (Nickel plating) of multiple bearing seats on turbine shaft SELECTIVE PLATING 22

23 SPECIAL COATINGS ON BIG PARTS Nickel plating on sliding surface - power generator part Consideration of certain roughness very important! 100 µm Zinc plating on extremely long turbine shaft The removal of this turbine shaft is very difficult because of the very complicated installation position. The removal is very expensive and time consuming! The outcome of our plating is a very much longer extension of longevity! SELECTIVE PLATING SPECIAL COATINGS 23

24 Housing with divided bearing surface Half-automated plating under use of electric driven / rotation anode and use of a circulating pump 24

25 SPECIAL COATINGS N E W S Repair of roller with Chromium as top layer scratches all around the roller depth: 0,3 mm / width: 3 mm galvanic refilling of damaged areas grinding polishing repaired area after finishing and partial chromium plating total view on applicator roll 25

26 PRINCIPLE OF OPERATION A B C D E A Special Power Pack is delivering the necessary power supply for the process. The black lead negative cable (negative electrode) is connected between the Power Pack and the workpiece. The red lead positive (positive electrode) is connected to the Power Pack as well and on the other end comes a handle. Unter Tampongalvanisieren versteht man die elektrolytische Abscheidung eines. mechanischen Bauteilen. Das Verfahren findet Anwendung in der Fabrikation, der B Forschung oder in Reparaturabteilungen. Die Abscheidungsgeschwindigkeiten sind The handle is connected to the Anode which is wrapped into absorbent cotton wool, Polyester, TuffWrap, Scotch Brite, etc. This cover material = tampon sehr hoch; die Niederschläge sind hart, wenig porös, sehr fein und die Gefahr der E Wasserstoffversprödung ist Using a circulation pump or dipping the Anode into Electrolytes the medium is brought forward to the point where a new surface is needed. A C D Anode & Cover material / Tampon in detail: The deposition speed is very high, the new layers hard, less porous, very fine and the danger of hydrogen embrittlement is relatively, in some cases extremely low! An extremely exact calculation and control of coat thickness / deposit thickness is possible! 26

27 CORROSION PROTECTION WEAR RESISTANCE HARDNESS DEPOSIT THIICKNESS PER LAYER (µm) ART. NO... - SELECTIVE PLATING TECHNICAL DATA OF PRIMARY ELECTROLYTE A P P L I C A T I O N ELECTROLYTE - Very good protection against corrosion - Extremely low hydrogen embrittlement - Does not require bake for embrittlement XXX 27V CADMIUM (LHE) - Salvage - Repair of stellite XX 41Rc COBALT - Salvage - Pit filling deep pits, underlay for Nickel X 100V COPPER (HS, ACID) - Salvage - Refilling of damages (intermediate layer) X 187V COPPER (XHB) - Salvage - Improve brazing on many base materials XX XX 36Rc NICKEL (ACID) - Bonding layer for all kind of steel NICKEL (SPECIAL) - Salvage and for parts which are exposed to heat and wearing X XX 54Rc NICKEL (HS) - Salvage; Fast application for re-dimensioning on worn out parts X XX 54Rc NICKEL (XHB) - Hard, wear resistance - Pit and steam cut filling high operating temperature parts such as turbine casing - Sealing metal to metal joints XXX 115V SILVER (Non Cyanide) - Lower contact resistance on aluminum and copper buss bars - Application for re-dimensioning on heavy worn out parts XX XXX 50Rc NICKEL-COBALT - Corrosion resistance - High wear resistance XX XXX 55Rc NICKEL-TUNGSTEN D - Provide excellent wear resistance at high temperature XX XXX 47Rc COBALT-TUNGSTEN - Very good protection against corrosion - Provide maximum wear resistance XXX+ XXX 54Rc CHROMIUM - Lower contact resistance on aluminum - Overlay on copper for carburizing or 7V TIN nitriding stop off - Corrosion protection on iron, steel and cast iron XXX 41V ZINC (ALKALINE) - Alternative to Cadmium - Sacrificial corrosion protection XXX 132V ZINC-NICKEL LHE 27

28 EQUIPMENT & KNOW HOW for your company Power Packs 15 Amp up to 300 Amp Anodes Electrolyte Special assistive technology Please feel free to ask for a selection of items! We will put together the F U L L E Q U I P M E N T & T R A I N I N G which match perfectly to your needs! 28