Download 2013 - IHI

アブレシブ磨耗危険度評価キット Abrasive Wear Prevention Kit
燃料油中に含まれる粒子の量、粒子のサイズ、粒子の硬さ等によってシリンダライ
ナにアブレシブ磨耗の危険性があります。従って燃料油中の Si や Al の化学成分
分析のみで、アブレシブ磨耗の危険性を完全に評価をすることは困難です。この
キットは採取した燃料油中で摺動シミュレーションを行い、発生した磨耗鉄粉濃
度をポータブル TF ディテクターで計測することにより、アブレシブ磨耗の危険
性を評価します。
The risk of abrasive wear for cylinder liner is according to amount of
particles, size of particles, hardness of particles etc. in fuel oil. Therefore it
is not enough to evaluate the risk of abrasive wear only by chemical
component analysis of Si and Al in FO. This kit simulates sliding behavior in
FO, and evaluates the risk of abrasive wear by worn Fe powder density with
Portable TF-Detector.
FCC触媒粒子によるアブレシブ磨耗例
Example of sliding surface with abrasive wear by
SiO2 and Al2O3
10um
25um
Hard particle content
ex.) Al+Si (mg/kg)
30
Risk : HIGH
20
Risk : MEDIUM
10
Risk : LOW
0
15um
5
10
15
Hard particle size (μｍ)
Estimated risk map for abrasive wear by hard particles in HFO.
It is not only related contents but also particle size.
新しい検査方法
新しい検査方法
2
1
1
FO
sample
42
Set slide test pieces in
FO
Measure worn Fe powder
density by Portable TF-Detector
Applying the result of
4ppm to the risk map
Fe density measured by portable TF-Detector (ppm)
Risk
5
Risk map of abrasive wear
Risk : VERY HIGH
Risk : HIGH
Risk : MIDDLE
Risk : LOW