Njerwa (high aluminium) njerwa

Ubwino wazogulitsa: kutsika kwakukulu, kukana bwino kukana ndi dzimbiri.

Mafotokozedwe Akatundu

Njerwa za plug (high aluminium) nazonso ndizofala pamitengo yamitengo yamafuta apamwamba. Amagwiritsidwa ntchito poletsa kuyika kwa njerwa zooneka ngati mphete kuti zisamire, kugwa kapena kugwa chifukwa chomasuka pakasinthasintha kwakanthawi, ndipo cholembacho chimakhala cholimba. ndi kukula kwake, ndipo gawo lirilonse limatha kukhala njerwa yowoneka ngati fan.

Njerwa za plug (high aluminium) zimagwiritsidwa ntchito popanga makina oyatsira. Landirani njerwa zopangira plug (high aluminium), mutha kutipatsa kukula kwa njerwa zomwe mukufuna, ndipo tidzakusinthani.

Zizindikiro zakuthupi ndi zamankhwala

Udindo / Index	Njerwa zapamwamba za alumina	Secondary mkulu alumina njerwa	Atatu milingo alumina njerwa	Njerwa zapamwamba kwambiri za alumina
Udindo / Index	LZ-75	LZ-65	LZ-55	LZ-80
AL203 ≧	75	65	55	80
Fe203%	2.5	2.5	2.6	2.0
Kuchulukana kachulukidwe g / cm2	2.5	2.4	2.2	2.7
Kuponderezana kwamphamvu kutentha kwa firiji MPa>	70	60	50	80
Katundu wofewetsa kutentha ° C	1520	1480	1420	1530
Kutulutsa kotsutsa ° C>	1790	1770	1770	1790
Zikuoneka porosity%	24	24	26	22
Kutentha kwamuyaya kwa kusintha kwa mzere%	-0.3	-0.4	-0.4	-0.2