4.1.1 ???? - PowerPoint PPT Presentation

About This Presentation
Title:

4.1.1 ????

Description:

Title: Author: user Last modified by: USER Created Date: 10/22/2003 2:01:21 AM Document presentation format: Company – PowerPoint PPT presentation

Number of Views:16
Avg rating:3.0/5.0
Slides: 36
Provided by: myStustE
Category:
Tags: hydrazine

less

Transcript and Presenter's Notes

Title: 4.1.1 ????


1
???????
  • 4.1.??
  • 4.2.??
  • 4.3.??
  • 4.4.????
  • 4.5.?????

2
4.1??
  • 4.1.1 ????  
  • 4.2.1 ????????
  • 4.3 ?????(Copper Sulfate Baths)

3
4.1.1 ????
  • ?????? 
  • ??8.94 ??1083?  ??2582?
  • Brinell??43-103 ??1.673 l W -cm,
  •  ????Cu e- ?Cu?0.52V
  • Cu 2e-?Cu?0.34V?    
  • ????,????,???????????????????????,?????????,??????
    ??????????????????
  • ????????????????????????????
  • ??????????????????????????????????????????????????
    ??????????????????????????,?????????????

4
4.2.1 ????????
  • ??????
  • 1.??????  
  • ???
  • ???????,??????????,?????????????????????,?????
  • ???
  • ?????????????????????

5
4.2.1 ????????
  • 2.????????
  • ??? 
  • ??????????????????
  • ??? 
  • ???,??????????????,?????????,???????????,???
  • P.S  ??????????,????????????,?         
    ????????,??????????????
  •  

6
4.3 ?????(Copper Sulfate Baths)
  • ????????(prepare)???(operate)??????
    ???,????????(printed circuits)???(electronics)
    ????(photogravure)???(electroforming)???(decorativ
    e) ?????(plating on plastics)?
  • ???????,???????,????????,?????????????????????????
    ??????????????????(strike),???????(replacement
    diposits)????????

7
4.3 ?????(Copper Sulfate Baths)
  • ?????????????????,?????????????????
    ?,??????????,????????(0.02?0.08wtP) ,????(copper
    anode nuggets)?????(titanium baskets)??,
    ????????(anode bag),?????????21,????????????100,
    ???????????

8
4.3 ?????(Copper Sulfate Baths)
  • ?????(general formulation)  
  • Copper sulfate 195-248 g/l 
  • Sulfuric acid 30-75 g/l 
  • Chloride 50-120 ppm 
  • Current density 20-100 ASF 
  • ????(bright plating)beaver ?? Copper sulfate
    210 g/l 
  • Sulfuric 60 g/l 
  • Chloride 50-120 ppm 
  • Thiourea 0.1 g/l 
  • Dextrin ?? 0.01 g/l    

9
???????????
  • ???????????????,???? ?????????????100,?????????
    ??????????????????????????????(polarization)??????
    ??????? (throwing power)?
  • ?????????????,????????????????(plating
    range)?????
  • ??????????????(solution jet)??????????,??????????
    ?(allowable current density)???

10
???????????
  • 1.?????????
  •  ???????????????????????
  • 2.????  
  • ?????????????????????????
  • 3.???? 
  • ?????????????????????????
  •  4.??  
  • ???????????????
  • 5.????
  • ???????????????????????????????
  • 6.?????? ???????????????????????? ??????????

11
4.2.??
  • 4.2.1????
  • 4.2.2????
  • 4.2.3?????
  • 4.2.4?????(Engineering Nickel Plating)

12
4.2.1????
  • (1) ?????,?? (2) ????FCC
  • (3) ??1457 C (4) ??2730 C
  • (5) ???????? (6) ????????????,?600 C?????? (7)
    ??????
  • (8) ???????,???????
  • (9) ???????,?????????????
  • (10) ??????????????????
  • (11) ??????-0.25??,???,??????????????????????????
  • (12) ?????????????
  • (13) ?????????????

13
4.2.2????
  • ?????????????????????,???????????????????
  • ????????
  • ?????????????????????????,????????
  • ?????????????????????,???????????????(record
    stampers),??????????????????????????????

14
4.2.2????
  • ??(printing screens)?????Ni2e-Ni,??Ni????????????
    ????????????100 ,????????????? Ni ??? pH???,???
    (drag-out)???Ni???,????????????????????,??????pH??
    ??????????????

15
4.2.3?????
  • ???????,?????????(nickel sulfate)????(nickel
    chloride)???(boric acid)?
  • ????????Ni???,???????????????,????????????????????
    (anti-pitting)????(wetting agent)???????????????,?
    ???????????????????????????????????,?????????????,
    ??????????(wattsath)?

16
4.2.4?????
  • ???????????
  • 1.??(tensile strength), 2.???(elongation),3.??(har
    dness), 4.???(internal), 5.????(fatigue life),
    6.???(hydrogen embrittlement) ?
  • ??????????????????????????,??????????????

17
???????
  • ???(watts bath)
  • ??? NiSO4.7H2O 300g/l
  • ??? NiCl2.6H2O60g/l
  • ?? H3BO3 37.5g/l
  • pH? 3 ?? 60C
  • ????430A/m2

18
4.3.??
  • 4.3.1????
  • 4.3.2??????
  • 4.3.3?????
  • 4.3.4?????

19
4.3.1????
  • (1) ?? ???,????? (2) ?? 1900 ?C
  • (3) ?? 80010OOHB?
  • (4) ???? ??0.71 ???
  • (5) ?????????,????????
  • (6) ??,???,????????????
  • (7) ???????????
  • (8) ?????????????
  • (9) ???????,?480"C?????,50O ????????,700"C??????
  •       

20
4.3.1????
  • (12)?????????????????????
  • (13)???????????????
  • (14)???????, ?????????????,??????
  • (15)???????,????????????,???????,?????????
    ??????????????
  • (16)??????????????????????????????,??????.

21
4.3.2??????
  • 1.????????
  •        2.????????
  •        3.?????????
  •        5.??????
  •        6.????
  •        7.?????
  •        8.?????
  •        9.?????

22
4.3.3?????
  • (1)????????????????????
  • (2)????,?????????????
  • (3)??????,????????
  • (4)??????????,????????
  • (5)??????????
  • (6)????????????,???????(7)?????????,???????
  • (8)???????,?????,??????

23
4.3.4?????
  • ?????????????,????????????????,??????,?????????,??
    ??????,????????????
  • ?????????????,????????????????,????????????????,??
    ?????????
  • ????????????????????????,????????????????

24
4.4.????
  • 4.4.1???????
  • 4.4.2?????????????
  • 4.4.3????

25
4.4.1???????
  • ??????????????????????????????????
  • ???????????,?????? (complexing agents)?????,??????
    ?????????,??????????????????,?????????200mV??????(
    code-posit)?

26
4.4.1???????
  • ??????????
  • (1) ??????????,?????????
  • (2) ??????????
  • (3) ??????,????????
  • (4) pH??????????
  • (5) ????????????

27
4.4.2?????????????
  • ???????????????????
  • (1) ???????
  • (2) ???????,????????(Inert anodes)
  • (3) ???????????????????,
  • (4) ?????????????????
  • (5) ??????????????????
  • (6) ???????????

28
4.4.3????
  • 1.????(Brass Plating)
  • ?????????????,?????????????.
  • ?????????
  • ??,7080????????
  • ??? Copper Cyanide 32g/l
  • ??? Zinc Cyanide 10g/l
  • ??? Sodium Carbonate 7.5g/l
  • ? Ammonia 2.5-5ml/l
  • ??? Sodium Cyanide 50g/l
  • ?? 25-35C ,pH 10-10.2
  • ???? 2.2A/dm2

29
??????(Nickel-Iron Plating)
  • ??????????
  • ??? Nickel Sulfate 37.5-225g/l
  • ??? Nickel Sulfate 75-225g/l
  • ?? Boric Acid 45-52.5g/l
  • ??? Ferrous Sulfate 7.5-75g/l
  • pH 3-4 ,?? 43-71C
  • ???? 0.54-10.8A/dm2
  • ?? ??
  • ??? ???
  • ?? ????

30
4.5.?????
  • 4.5.1????????
  • 4.5.2????(Plastic Plating)
  • 4.5.3???????
  • 4.5.4?????????

31
4.5.1????????
  • ??????????(Electroplating)??????????(vacuum
    metalizing)??????(cathode sputtering)??????(metal
    spraying)?
  • ???????????????????,?????????????????(roughening)?
    ?????(interlocking- surface)??????????

32
4.5.1????????
  • ?????????
  • 1.????(Bronzing)??????,??????????(binder),?????,?
    ??????????
  • 2.???(Graphiting)??????(wax),??(rubber)??????(pol
    ymers)?,??????????
  • 3.???(Metallic paints)??????(Flux)??????????(fire
    )???????,??????????
  • 4.???(Metalizing)????????????(metallic
    coating)???????????????????????(Formaldehyde)???(H
    ydrazine)?????????????????

33
4.5.2????(Plastic Plating)
  • ???????
  • ??????????????????,??????,????????,
  • ???????,???????????????,????????????
  • ??????????????????

34
4.5.3???????
  • (1)??(cleaning)?????????????????,????????????????
    ??
  • (2)????(solvent treatment)????????(wetting)??????
    ?????(conditioner)???
  • (3)????(conditioning)????????????????????????,???
    ?????
  • (4)???(sensitization)?????????,??(Stannous
    Chloride)???????,??Sn?????????????????
  • (5)??(nucleation)?????????????????(???)???,??????
    ????????????(seed)????????????

35
4.5.4?????????
  • 1.????(conditioning)???????????
  • ???? CrO3 20 g/l
  • ? ? H2SO4 ??1.84 600cc/l
  • ? ? 60?,?? 1530?
  • 2.???(sensitizing)
  •      ???? SnCL2 2040 g/l
  •      ? ? HCl 1020 cc/l
  • 3.??(nucleation) ????(activating)
  •      ??? PdCL2 0.10.3g/l
  •      ? ? HCl 35 cc/l
Write a Comment
User Comments (0)
About PowerShow.com