Manaʻoʻiʻo i ka nui o nā hoaaloha a pau i kūʻai i ka pahi kīhini a ʻike paha i ka pahi kīhini, akā no ka hana ʻana i ke kila pahi kīhini e huikau, ua maikaʻi kēia mea?
He aha kēia mea?
He kila kila?
A i ʻole hao?
Mai hopohopo, hoʻokomo mua ʻoe i ke kila chrome (
cr）
, ka ʻokoʻa ma waena o nā mea maloʻo aʻe ma hope.
1, ʻekolu kila chrome: kalapona (
C)
Ua helu ʻia no 0.
28 -
0.
35%, loaʻa ka chromium (
Cr）
12.
8 -
13.
5% o nā meaʻai.
Ma hope o ka mālama ʻana i ka ʻaila, hiki ke piʻi ka paʻakikī i 54 -
56 HRC.
ʻO nā hiʻohiʻona huahana moʻo kila: koi, Yi Fu wili, ʻaʻole maʻalahi i ka ʻōpala.
2, 4 kila chrome, kalapona,
C)
Ua helu ʻia no 0.
35 -
0.
45%, loaʻa ka chromium (
Cr）
12.
8 -
13.
5%, molybdenum (
Mo）
0.
5% vanadium (
(五)
0.
3 -
0.
5% o nā meaʻai.
ʻO ka hana ʻana ma hope o ka hoʻonui ʻana i ka wela, hiki i ka paʻakikī ke piʻi i 56 -
58HRC.
ʻO nā hiʻohiʻona huahana moʻo kila: ʻoi aku ka ʻoi, ka ʻōpala a me ka paʻakikī, ʻaʻole maʻalahi e haki i ka ʻokiʻoki, ʻoi aku ka maikaʻi, Yi Fu wili palaoa.
3, 5 kila chrome, kalapona,
C)
0.
68 -
0.
75%, loaʻa ka chromium (
Cr）
16.
7 -
17.
5%, molybdenum (
Mo）
0.
5% o nā mea e like me;
Ma hope o ka mālama ʻana i ka ʻaila, 58 - hiki ke loaʻa ka paʻakikī
60HRC.
ʻO nā hiʻohiʻona huahana moʻo kila: ʻoi aku ka paʻakikī a me ka ʻoi, ka lōʻihi, ka ʻōpala a me ka paʻakikī kiʻekiʻe.
