???(Tensile properties)-????(Ts)????(Te) - PowerPoint PPT Presentation

1 / 24
About This Presentation
Title:

???(Tensile properties)-????(Ts)????(Te)

Description:

Impact Strength Izod Charpy Izod Charpy ... 1 HB Test: ... – PowerPoint PPT presentation

Number of Views:247
Avg rating:3.0/5.0
Slides: 25
Provided by: LIUS77
Category:

less

Transcript and Presenter's Notes

Title: ???(Tensile properties)-????(Ts)????(Te)


1
  • ??????????????
  • ???(Tensile properties)-????(Ts)????(Te)
  • ????(Flexural Properties)-????(Fs)?????(Fm)
  • ????(Impact Strength)
  • ???(Flammability)
  • ?????(Heat Deflection Temperature)
  • ???(Melt Flow Index)
  • ???(Electrical Properties)
  • ????(Rockwell Hardness)
  • ??(Specific Gravity)
  • ?????(Mold Shrinkage)

2
????(Tensile Properties)
??????????????,????????,?????,????,???????????????
???????????,??????????,????????????????????????
???? ? F/A ??? ? ?L/L?100
?????????????
?????????
3
  • ????(Tensile Stress)?????,????????????????
  • ???(Tensile Strain)???????????????????????
  • ???(Yield Point)???????,???????,?????????????????
    ??????????(Yield Strength),????????????(Elongation
    at Yield)?
  • ????(Tensile Modulus)?????????,???????????????,??
    ??????????(????/???)????????
  • ????(Breaking Strength)????(Break Point)????????
  • ?????(Elongation at Break)????(Break
    Point)????????
  • ????(Tensile Strength)???????,??????????????????
    ??,????????????
  • ????????????,?????????,??????????????,???????????
    ??????????????????????????????????????????

4
GB1040????????????
  • ??????????????GB1040?ASTM D638?ISO527,??????
  • ???????????,?????????????????????????????????
  • ????????????????????????,????????????????????????
    ???

5
????(Flexural Properties)
???????????????,??????????????????,???????????????
??????????????????
  • ????(Flexural Strength)???????????????,???????5?
    ????????????????????????????????
  • ????(Flexural Modulus)???????????????????????????
    ?????????,????,??????,??????

6
????Fs (3Pmax ? t) / 2bh2 ????Fm (t3 ? m) /
2bh2 ??b?????t ????????m ?????????3Pmax?????(?
?)?
  • ??????????????GB9341?ASTM D790?ISO178,??????
  • ???????????????????????????????
  • ??????????????(???HL)?????(L)???,??????

7
(No Transcript)
8
????(Impact Strength)
???????????,????????????????????,??????????????,??
????,?????????,??????? ???????????????????,???????
???????????????????????????????????????,??????????
????
Izod?????Charpy???????????,????Izod???????????????
,?Charpy??????????????,??????????
Izod?????
Charpy?????
9
?????
Izod????
Charpy????
?????
10
???(Flammability)
?????????????,??????????????,???????????????,?????
?,??????,????????????,?????????,?????????????????,
?????????????
  • ???????
  • UL94??UL(Underwriters Laboratory)???????????,???
    5VAgt5VBgtV-0gtV-1gtV-2gtHB?
  • IEC707?????????????????
  • CSA22.2???No.0.6(Test AJ)???????????????????????
    ?UL????,??UL????,??UL?5V????,?UL???,???????????ID?
    ????,????????,UL?????????????????????(Certificatio
    n)?

11
  • 1???????(HB Test Horizontal Burning Test)
  • ???????????????,??????
  • ??12.7cm?1.27cm?????(5???)
  • ??????23?C,??50,48????
  • ????????,2.54cm????,??????45?

???? ??gt3.2mm ??lt3.2mm
HB ????lt3.81cm/?? ????lt7.62cm/??
12
  • 2?????(Vertical Test)
  • ????????????,??????
  • ???????????10???????,???????????(?5??????)
  • ????????HB????
  • ????????,??????,??2cm

?? ?? ???? ???? ????? ??????? 5????? ??????? ????? ?????
V-0 lt10s lt30s lt50s ?
V-1 lt30s lt60s lt250s ?
V-2 lt30s lt60s lt250s ?
13
  • 3?5V????
  • (Bar???????Plaque??????)
  • ????(Bar)??
  • ????????HB????
  • ????????(????3.81cm/????12.7cm)
  • ???????????5??,??????5??,????????5?
  • ????(Plaque)??
  • ????15cm?15cm ???(?3?)
  • ???????????

?? ?? ????? ???? ????? ????? ???? ?????
5VA lt60s ? ?
5VB lt60s ? ?
?? ????
14
?????(Heat Deflection Temperature)
??????????????,???????,?????,????????????,????????
?????0.254mm???????????????(HDT)?HDT??????????????
???,HDT??,??????????
  • HDT???????A-1.82MPaB-0.45MPa
  • ???????????????,??????????,??35min,?2C/min
    ???????????????0.254mm?????
  • ??????(??100???0.9600.968????gt300C???????)

HDT??????
15
  • ????
  • ???2??????,?????3???
  • ??120mm?15mm ?10mm
  • ????????40?????????

???????
?????????????(HDT)????????????,??????????????????
???????????????????????????????,??????????????????
?????,??????????????,?????????
16
??????(Melt Flow Index)
  • ??????????,?????????????10?????????????,??????????
    ????????(MI)??,?????????
  • MI????????,??????????,????????????????,???????????
    ???????????MI??
  • ???????????????????,??????????,???????????????????
    ,????

?????????????????????????,????????????????
???? (g/10min) ??????(g) ????(min) ??MI (g/10min)
0.151.0 2.53.0 6.0 1.67
1.03.5 3.05.0 3.0 3.33
3.510 5.08.0 1.0 10.00
1025 4.08.0 0.5 20.00
2550 4.08.0 0.5 40.00
17
???(Electrical Properties)
????????????????????,???????????????????,?????????
??????????????????????????????,???????,???????????
????
  • ???? Hot Wire Ignition(HWI)
  • ??????? High Current Arc Ignition(HAI)
  • ??? Arc Resistance
  • ?????? Comparative TrackingIndex(CTI)
  • ????????? High Voltage Arc Tracking
    Rate(HVTR)????????????????,???????????,?????(5200
    V)?????????(??????????????)
  • ???? Dielectric Strength???????????,????????,????
    ????????
  • ????? Volume Resistivity????????????????????,????
    ??????????,?????,?????
  • ????? Surface Resistivity????????????????????????
    ?,???????????

18
1????? (HWI)???????,?????????,???????????????????
??
HWI(?) PLC??
gt 120 0
60120 1
3060 2
1530 3
715 4
lt 7 5
2????????(HAI)????????????????,??????????????(32.
5A)????(240V,60Hz)?,1????40???,???????????????
HAI(??) PLC??
gt 120 0
60120 1
3060 2
1530 3
015 4
19
????(?) PLC??
gt 420 0
360420 1
300360 2
240300 3
180240 4
120180 5
60120 6
lt 60 7
3???? Arc Resistance?????????????????,???????(Con
ducting Path)?????????????????????????????,CTI????
??????????????
4???????(CTI)?????????,?????????????,????????,???
???????????????????,????(Ammonium Chloride
0.1??)??30????????,????50???????????
CTI(Volt) PLC??
gt 600 0
400600 1
250400 2
175250 3
100175 4
lt 100 5
20
????(Rockwell Hardness)
???????????????????????,??????????????????????????
????,????????,???????
  • 1???????gt6mm??gt13mm?
  • 2???????,??????0???
  • 3???15???????,?????,???????
  • 4?15???,???????-RB(R?B?????)?
  • 5??????????150-RB?

21
?????????
???? (??????) ???? ( kg) ??? ( kg) ?????? (mm)
R 10 60 12.700?0.0025
L 10 60 6.350?0.0025
M 10 100 6.350?0.0025
E 10 100 3.175?0.0025
K 10 150 3.175?0.0025
???????????,??????????,??R??????????????,???????PC
,??R???????????,????M??????
22
?????( Specific Gravity/Density)
  • ????????????????4?C????????????
  • ?????????(???????23?C )?,???????????,?g/cm3???
  • ?????????????????????????????????????????,????????
    ?????????????
  • ??????,23?C????????1,????????????,???????????
    ?????0.99756?
  • ????
  • ???????????????,??????????????????????????????????
    ??,??????????????????????,???????????????
  • ???(?????)??????????????????,?????????(??????????
    )??????,????????????
  • ???(??????)????????????????????????,??23?C???????
    ???????

23
?????(Mold Shrinkage)
?? ?????,????????????????????,????????????????????
??????????????????????????????????????????????????
  • ???????
  • ?????,?????????,??????????
  • ???????,?????????????,????????????????????????????
    ??,?????????????,?????????
  • ???????
  • ?????,?????????????
  • ??????????????????????,????,?????????????,????????
    ????????

24
????????????
Write a Comment
User Comments (0)
About PowerShow.com