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기계가공·시험장비 > 재료물성시험장비 > 부식시험기
2009-10-13
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단일시험법을 조합시킨 복합사이클에 의 한 내식성 평가.
1. Performance
1-1. Kinds of test
1) Neutral Salt spray test
2) Neutral Salt solution dipping test
3) Dry heat test
4) Humid test
5) Water shower test
6) Low temperature test
7) Open air test
8) Cycle test of above test
1-2 Test conditions for each test
1) Neutral salt spray test
It should be satisfied specification of JIS Z 2371
염수분무, 건조, 습윤, 침지, 저온의 복합사이클 운전가능
- Reservoir stored salt solution is maintained at 35℃ before spray to assure the uniform temperature of mist
- Mist collection : 1.5±0.5 ml /80 cm2/h at two points
Max. around 3 ml/80 cm2/hdependingonmistpressure(Ref.only)
- Mist pressure : 0.098 MPa ±0.0025 MPa
- Test temperature : 35℃ ~ 50℃ ± 1℃
2) Neutral salt solution, 5%, dipping(immersion)test
(1) Solution temperature : (Room temperature + 10) ~ 60±1℃
Dipping test at 25℃ can be set and tested without temperature control.
3) Dry heat test
- Temperature control range : (R.T.+10℃)~ 70℃±1℃
- Humidity control range : 30±5%RH at 60℃~ 70℃
- Transition time : Within 20 min. from -20℃ to 35℃
4) Humid test
- Temperature control range : 50 ~ 70℃±1℃
- Humidity control range : 60 ~ 95±5%RH at 50℃
5) Water shower test for rinsing with 8 spray nozzle
6) Low temperature test
Temperature control range ; -20℃~ 20℃ ±1℃ with air-cooled type refrigerator
Transition time : Within 1 h from 25℃ to -20℃
7) Open air test
8) Cyclic test of above test
Test starting condition ;
- When the temperature is reached at a pre-set point, the other test is started.
- When the individual test is finished, the other test is started regardless of pre-set point.