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Balinit Coatings;
The non-metallic finishing touch

Kunststof Oppervlaktetechniek
12 April 2012




                                   1
BALINIT® coatings for tools (exception = Oerlikon Balinit Hartec)




  Cutting                             Plastics processing
                      Punching/                                  Die casting
                       forming
                                      Mould protection          Wear resistance
   Tool life           Tool life      Shorter cycle times
 Productivity         Dry running     Moving elements without
                                      Oil / grease




            Wat zijn PVD coatings ?

     Uiterst dunne keramische coatings.
     Anders dan bij galvanische technieken zijn de eigenschappen van de
     afzonderlijke bestanddelen niet meer aanwezig!!!
     Niet alleen de vereiste gladheid of structuur van gereedschappen wordt
     geseald met deze deklaag.
     Eigenschappen als corrosiebescherming, slijtageweerstand, lossing en
     matrijsvulling worden stuk voor stuk positief beïnvloed.
     Last but not least is “dry running” in veel gevallen (medisch / food) een
     keiharde eis.

                Physical Vapour Deposition

                 Are attached at temperatures between 200 and 500 °C
                 Thickness of the coating typical: 1-16 µm
                       Standard            : 31 µm
                 Strong adhesion of the coatings
                 High hardness and low coëfficiënt of friction.




                                                                                  2
Comparison on scale of hardness


          Diamant
             BNc
        X.TREME
       FUT NANO
             TiCN
              TiN
              CrN
       Hardmetaal
     Nitreerlagen
      Hardchroom
Snelstaal (64 HRC)
Warmarbeidsstaal

                     0   2000   4000   6000   8000   10000
                                                             Hardness (HV)




                                                                             3
Thinness of the coating in comparison




Human hair
0.05 mm




BALINIT® hard coating
0.003 mm




7




Dry running properties of sliding materials
Coefficient of friction


    0.6       CuSnPb    Ni-PTFE      Coating            Coating                 MoS2
              bronze                 with MoS2          with PTFE               PVD
    0.5
                                      x                     x       x
    0.4


    0.3                                                             x End of test
                          xx                                            due to
                                                                        adhesive wear
    0.2
                                     BALINIT® C
                                     nearly no wear
    0.1


    0
          0       100          200        300     400      500            600           700

                                                                           Sliding distance [m]
                                                                                              Page 8




                                                                                                       4
Characterization of carbon coatings
 Contact angle, wettability, sticking behaviour

               CA 42°          uncoated steel              CA 102.5°          a-C:H:Si coating
                               surface




                        Hydrophilic surface                        Hydrophobic surface

                High surface energy (63 mN/m)                  Low surface energy (22 mN/m)




       Carbon based coatings


                                                                                      Natural
                                                                          BALINIT®   Diamond
                                                                          Diamond                8
                                                                            CVD
                                                                                                 coating thickness




                                                            ta-C
Hardness




           2
                                                            AIP
                                                BALINIT®
                                                  DLC                                            6
                                                 a-C:H
                                                 DC/RF
                            BALINIT®
           1                 Me-C:H                                                              1
                BALINIT®
                              RF
                 Me-C:H
                  DC
                                          Sp2 versus Sp3 bonding




                                                                                                                     5
Types of carbon based coatings

          BALINIT® C                         BALINIT® DLC
          Me-C:H                             a-C:H
          • very good adhesion               • high wear resistance
          • high elasticity                  • high hardness (to >2,500 HV)
          • moderate hardness (2,000 HV)     • low friction




          Hard Carbon (ta-C)                 BALINIT® DIAMOND
          • hydrogen-free                    •   max. wear resistance
          • high hardness (5,000 HV)         •   max. hardness (10,000 HV)
          • greater temperature resistance   •   T resistance up to 800⁰C




Page 11




Balinit DLC - SEM Cross Section

                                                              DLC

                                                              CrC

                                                              Cr

                                                              Substrate (Fe)




                                                                              Page 12




                                                                                        6
Coating: Hydrogen-free carbon (ta-C)
SEM Fracture Cross Section and Hardness




                     Typical hardness: Hv = 4000 – 5000




     Balinit Hardcarbon

               Coating material               Tetrahedral amorphous carbon (t-aC)

           Microhardness (Hv 0.01)                       4000 - 5000

      Coefficient of friction against steel
                                                  < 0.15 (w/o post-treatment)
               (pin-on-disc, dry)

        Max.application temperature                         500°C

                                               depending on thickness: rainbow,
                Coating colour
                                                         black, grey

                 Coating type                             monolayer

             Coating thickness
                                                          0.3 to 3 µm
         (depends on tool geometry)

          Coating temperature (C°)                         < 150°C




                                                                                    7
BALINIT ARCTIC coating series




What does ARCTIC mean ?




                 ARCTIC coating series
                 - BALINIT® A ARCTIC
                 - BALINIT® D ARCTIC
                 - BALINIT® FUTURA NANO ARCTIC


                   Deposited at 200°C




                                                 8
BALINIT® ARCTIC coating series


Coating temperature at 200°C has the benefits of

 no loss of hardness for low tempered steel grades

 no effect on corrosion resistance

 prevention of distortion

BALINIT® properties and performance are unaltered

Excellent coating adhesion




No loss of hardness for low tempered steel
grades

     Hardness [HRC]
68                                                                 Tempering diagram
                                                                   for steel:
64                                                                 K107
                                                                   (1.2436)
60
                                                                       Standard coating
                                                                       temperature
56
                                                                       ARCTIC coating
52                                                                     temperature

48

44

40
     0      100       200    300   400      500       600        700
                                         Tempering temperature [°C]




                                                                                          9
No effect on corrosion resistance


      Corrosion resistance [%]
120                                                                           Tempering diagram
                                                                              for steel:
                                                                              M310
                                                                              (1.2083)
100
                                                                                 Standard coating
                                                                                 temperature

 80                                                                              ARCTIC coating
                                                                                 temperature


 60



 40
      0        100      200        300    400       500      600        700
                                                Tempering temperature [°C]




Prevention of distortion

          Dimensional change [%]
 0.15                                                                         Tempering diagram
                                                                              for steel:
  0.1                                                                         M310
                                                                              (1.2083)

 0.05                                                                            Standard coating
                                                                                 temperature
      0                                                                          ARCTIC coating
                                                                                 temperature
-0.05


 -0.1


-0.15
          0     100      200       300   400      500      600     700
                                                Tempering temperature [°C]




                                                                                                    10
Some examples….




                  Hahnleiste Discofix® C aus Polyamid 12
                       Zyklus - Zeit




                                                           11
Hahnleiste Discofix® C aus Polyamid




                                                                          30

    Kern:                                                                 25




                                                                                                         10 sec
                                                                          20
    - Werkstoff: HSS
    - Dimension:
                                                                          15
          2,5 mm (keine Kühlung möglich)




                                                         Zyklus - Zeit
         KS - umspritzte Länge: ca.52 mm                                  10

                                                                              5
    Schicht: BALINIT® ALCRONA Top
                                                                              0




                                                                                              A



                                                                                                              NA
                                                                                     t
                                                                                    te



                                                                                            it
                                                                                          l in
                                                                                    ch




                                                                                                            O
                                                                                                         CR
                                                                                         Ba
                                                                                  hi
                                                                              sc




                                                                                                   AL
      Zyklus – Zeiteinsparung: 37%                                        be




                                                                                                    it
                                                                         un




                                                                                                l in
                                                                                              Ba




Automotive: PA + Weich-Komponente von Sika



Anwendung:
Automotive: PA + Weich-Komponente von Sika
Teile werden zB zwischen Aussen- und
Innenteil in Autos montiert.
Die weiche Sika-Komponente wird beim
Einbrennlackieren aufgeschäumt.

Problem:
Starkes Verkleben (schlechte Entformbarkeit)
Bis anhin nur mit PTFE-Beschichtung entformbar.


Lösung
Bei Versuchen auf einer 4-fach-Form konnten
verschiedene PVD-Schichten getestet werden.
ALCRONA war die einzige Schicht die annähernd die gute
Entformbarkeit der PTFE-Beschichtung erreichte.




                                                                                                                   12
Vergaser-Krümmer


Verarbeitet wird eine spez. VITON-Mischung (FKM oder FPM) Kg-Preis: > Fr.300.-
Formtemperatur: 190°C +/-5°C

Balinit ALCRONA PRO
- Bessere Entformbarkeit (ca. 20%)
- Weniger Trennmittel (ca. 80 Teile ohne Trennmittel)
- Weniger Reinigungsaufwand




                           -12%
                  17
                                  15

                                                        •   Medizinalteil: Scheidenspülung
  Zykluszeit




                                                        •   Kunstoff: keine Angaben

                                                        •   Tiefe Shor Härte




               Balinit A        Balinit
                              ALCRONA




                                                                                             13
Spühlkasten

Entformungsprobleme:
• Werkzeug noch in Bemusterung
• Anzugvergrösserung nicht erlaubt

Verarbeitet wird:
• PP-C Borealis + Masterbatch
• PP-C Moplen EP340M + Masterbatch

Kern:
• Werkstoff: 1.2738 / nitriert
• Oberfläche: gestrahlt

Lösung:
• ALCRONA AC3 TOP




Formeinsatz mit ALCRONA PRO


Umstellung der Beschichtung Balinit A
auf Balinit ALCRONA PRO

Vorteil:
 Weniger Verschleiss im Formbereich /
  Kavitäten
 Bessere Entformung des KS Teil
 Weniger Verzug des KS Teil

Versuch noch nicht abgeschlossen
                     Schicht nach ca. 200‘000
                     Partielle Abnutzung der

                     Schuss erkennbar
                     Balinit® A




                                                14
www.coating-guide.balzers.com




                            • Coating Guide
                            • Material library
                            • Coatings information
                            • Sample applications
                            • Balzers world-wide




Thank you for your attention !




                                                            15

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  • 1. Balinit Coatings; The non-metallic finishing touch Kunststof Oppervlaktetechniek 12 April 2012 1
  • 2. BALINIT® coatings for tools (exception = Oerlikon Balinit Hartec) Cutting Plastics processing Punching/ Die casting forming Mould protection Wear resistance Tool life Tool life Shorter cycle times Productivity Dry running Moving elements without Oil / grease Wat zijn PVD coatings ? Uiterst dunne keramische coatings. Anders dan bij galvanische technieken zijn de eigenschappen van de afzonderlijke bestanddelen niet meer aanwezig!!! Niet alleen de vereiste gladheid of structuur van gereedschappen wordt geseald met deze deklaag. Eigenschappen als corrosiebescherming, slijtageweerstand, lossing en matrijsvulling worden stuk voor stuk positief beïnvloed. Last but not least is “dry running” in veel gevallen (medisch / food) een keiharde eis. Physical Vapour Deposition  Are attached at temperatures between 200 and 500 °C  Thickness of the coating typical: 1-16 µm Standard : 31 µm  Strong adhesion of the coatings  High hardness and low coëfficiënt of friction. 2
  • 3. Comparison on scale of hardness Diamant BNc X.TREME FUT NANO TiCN TiN CrN Hardmetaal Nitreerlagen Hardchroom Snelstaal (64 HRC) Warmarbeidsstaal 0 2000 4000 6000 8000 10000 Hardness (HV) 3
  • 4. Thinness of the coating in comparison Human hair 0.05 mm BALINIT® hard coating 0.003 mm 7 Dry running properties of sliding materials Coefficient of friction 0.6 CuSnPb Ni-PTFE Coating Coating MoS2 bronze with MoS2 with PTFE PVD 0.5 x x x 0.4 0.3 x End of test xx due to adhesive wear 0.2 BALINIT® C nearly no wear 0.1 0 0 100 200 300 400 500 600 700 Sliding distance [m] Page 8 4
  • 5. Characterization of carbon coatings Contact angle, wettability, sticking behaviour CA 42° uncoated steel CA 102.5° a-C:H:Si coating surface Hydrophilic surface Hydrophobic surface High surface energy (63 mN/m) Low surface energy (22 mN/m) Carbon based coatings Natural BALINIT® Diamond Diamond 8 CVD coating thickness ta-C Hardness 2 AIP BALINIT® DLC 6 a-C:H DC/RF BALINIT® 1 Me-C:H 1 BALINIT® RF Me-C:H DC Sp2 versus Sp3 bonding 5
  • 6. Types of carbon based coatings BALINIT® C BALINIT® DLC Me-C:H a-C:H • very good adhesion • high wear resistance • high elasticity • high hardness (to >2,500 HV) • moderate hardness (2,000 HV) • low friction Hard Carbon (ta-C) BALINIT® DIAMOND • hydrogen-free • max. wear resistance • high hardness (5,000 HV) • max. hardness (10,000 HV) • greater temperature resistance • T resistance up to 800⁰C Page 11 Balinit DLC - SEM Cross Section DLC CrC Cr Substrate (Fe) Page 12 6
  • 7. Coating: Hydrogen-free carbon (ta-C) SEM Fracture Cross Section and Hardness Typical hardness: Hv = 4000 – 5000 Balinit Hardcarbon Coating material Tetrahedral amorphous carbon (t-aC) Microhardness (Hv 0.01) 4000 - 5000 Coefficient of friction against steel < 0.15 (w/o post-treatment) (pin-on-disc, dry) Max.application temperature 500°C depending on thickness: rainbow, Coating colour black, grey Coating type monolayer Coating thickness 0.3 to 3 µm (depends on tool geometry) Coating temperature (C°) < 150°C 7
  • 8. BALINIT ARCTIC coating series What does ARCTIC mean ? ARCTIC coating series - BALINIT® A ARCTIC - BALINIT® D ARCTIC - BALINIT® FUTURA NANO ARCTIC Deposited at 200°C 8
  • 9. BALINIT® ARCTIC coating series Coating temperature at 200°C has the benefits of  no loss of hardness for low tempered steel grades  no effect on corrosion resistance  prevention of distortion BALINIT® properties and performance are unaltered Excellent coating adhesion No loss of hardness for low tempered steel grades Hardness [HRC] 68 Tempering diagram for steel: 64 K107 (1.2436) 60 Standard coating temperature 56 ARCTIC coating 52 temperature 48 44 40 0 100 200 300 400 500 600 700 Tempering temperature [°C] 9
  • 10. No effect on corrosion resistance Corrosion resistance [%] 120 Tempering diagram for steel: M310 (1.2083) 100 Standard coating temperature 80 ARCTIC coating temperature 60 40 0 100 200 300 400 500 600 700 Tempering temperature [°C] Prevention of distortion Dimensional change [%] 0.15 Tempering diagram for steel: 0.1 M310 (1.2083) 0.05 Standard coating temperature 0 ARCTIC coating temperature -0.05 -0.1 -0.15 0 100 200 300 400 500 600 700 Tempering temperature [°C] 10
  • 11. Some examples…. Hahnleiste Discofix® C aus Polyamid 12 Zyklus - Zeit 11
  • 12. Hahnleiste Discofix® C aus Polyamid 30 Kern: 25 10 sec 20 - Werkstoff: HSS - Dimension: 15  2,5 mm (keine Kühlung möglich) Zyklus - Zeit KS - umspritzte Länge: ca.52 mm 10 5 Schicht: BALINIT® ALCRONA Top 0 A NA t te it l in ch O CR Ba hi sc AL Zyklus – Zeiteinsparung: 37% be it un l in Ba Automotive: PA + Weich-Komponente von Sika Anwendung: Automotive: PA + Weich-Komponente von Sika Teile werden zB zwischen Aussen- und Innenteil in Autos montiert. Die weiche Sika-Komponente wird beim Einbrennlackieren aufgeschäumt. Problem: Starkes Verkleben (schlechte Entformbarkeit) Bis anhin nur mit PTFE-Beschichtung entformbar. Lösung Bei Versuchen auf einer 4-fach-Form konnten verschiedene PVD-Schichten getestet werden. ALCRONA war die einzige Schicht die annähernd die gute Entformbarkeit der PTFE-Beschichtung erreichte. 12
  • 13. Vergaser-Krümmer Verarbeitet wird eine spez. VITON-Mischung (FKM oder FPM) Kg-Preis: > Fr.300.- Formtemperatur: 190°C +/-5°C Balinit ALCRONA PRO - Bessere Entformbarkeit (ca. 20%) - Weniger Trennmittel (ca. 80 Teile ohne Trennmittel) - Weniger Reinigungsaufwand -12% 17 15 • Medizinalteil: Scheidenspülung Zykluszeit • Kunstoff: keine Angaben • Tiefe Shor Härte Balinit A Balinit ALCRONA 13
  • 14. Spühlkasten Entformungsprobleme: • Werkzeug noch in Bemusterung • Anzugvergrösserung nicht erlaubt Verarbeitet wird: • PP-C Borealis + Masterbatch • PP-C Moplen EP340M + Masterbatch Kern: • Werkstoff: 1.2738 / nitriert • Oberfläche: gestrahlt Lösung: • ALCRONA AC3 TOP Formeinsatz mit ALCRONA PRO Umstellung der Beschichtung Balinit A auf Balinit ALCRONA PRO Vorteil:  Weniger Verschleiss im Formbereich / Kavitäten  Bessere Entformung des KS Teil  Weniger Verzug des KS Teil Versuch noch nicht abgeschlossen Schicht nach ca. 200‘000 Partielle Abnutzung der Schuss erkennbar Balinit® A 14
  • 15. www.coating-guide.balzers.com • Coating Guide • Material library • Coatings information • Sample applications • Balzers world-wide Thank you for your attention ! 15