Abubuwan Lubricant
Menene NLGI na man shafawa idan yazo da mai?
Cibiyar Lubricating Grease Institute (NLGI) ta kafa ƙayyadaddun daidaitattun ma'auni don mai mai. Ma'auni na daidaiton lambar NLGI (wanda aka sani da "NLGI grade") don ma'auni na taurin dangi na mai da ake amfani da shi don man shafawa. Girman lambar NLGI wanda ke nufin maiko ya fi ƙarfi/kauri.
Daidaituwa shine ma'auni na ainihin kaddarorin jiki na maiko wanda ke nuna taurin mai, wanda za'a iya daidaita shi ta canza abun cikin mai kauri.
Lambar daidaiton NLGI kadai bai isa ba don tantance man mai da wani takamaiman aikace-aikace ke buƙata. Koyaushe koma zuwa littafin mai mallakar ku don shawarar nau'in mai.
Tebur mai zuwa yana nuna rarrabuwar NLGI kuma yana kwatanta kowane aji tare da samfuran gida na daidaito iri ɗaya.
| NLGI (National Lubricating Grease Institute) NLGI daidaito lambobin | |||
| NLGI | ASTM yayi aiki (60 bugun jini) | Bayyanar | Daidaitaccen abinci analog |
| Shigarwa a 25 ° C | |||
| 000 | 445-475 | ruwa | man girki |
| 00 | 400-430 | rabin ruwa | apple miya |
| 0 | 355-385 | taushi sosai | launin ruwan kasa mustard |
| 1 | 310-340 | taushi | tumatir manna |
| 2 | 265-295 | man shafawa "al'ada". | man gyada |
| 3 | 220-250 | m | rage kayan lambu |
| 4 | 175-205 | sosai m | daskararre yogurt |
| 5 | 130-160 | wuya | santsi mai laushi |
| 6 | 85-115 | da wuya | cuku cheddar |
NLGI Grade 000-NLGI 0 man shafawa
Aikace-aikacen: NLGI Grade 000-NLGI 0 ana ba da shawarar don babban matsa lamba, nauyi mai nauyi da tsarin rufewa.
Abvantbuwan amfãni: Fitaccen aikin lubricity, mai kyau famfo, mafi kyawun zubar da zafi.
Hasara: Mai sauƙin bayyana rabuwar mai.
NLGI 1-2
A al'ada NIGI 2 shine ma'auni kuma mafi mashahuri daidaito a yawancin man shafawa, man shafawa ne na al'ada. Amma a aikace-aikace masu amfani, aikace-aikace daban-daban ko kayan aiki daban-daban za a buƙaci man shafawa na NLGI daban-daban.
Abvantbuwan amfãni: Faɗin aikace-aikace, kyakkyawan kwanciyar hankali na colloidal
Matsakaicin daidaiton darajar NLGI ≠Viscosity
Tambayar abokin ciniki: Ina neman mai mai kauri guda ɗaya...
Ma'aikatar Lubircant: Shin kuna son ƙarin man shafawa mai “wuya” ko kuma mai “mai ƙarfi”?
Abokin ciniki: Menene bambanci tsakanin waɗannan biyun?
Da farko maki NLGI (Daidaitawa & Shigarwa) don samfuran man shafawa ne kawai
Kuma danko shine don lubricating mai ko tushen mai na kayan mai.
Makin NLGI suna rarraba mai mai laushi ko mai wuya, yana tsaye ga yanayin bayyanar maiko.
danko Rarraba man shafawa tushe danko, Yana kayyade man shafawa danko, Mafi girma da danko, da man shafawa ne mafi m.
Yawanci man shafawa 2 na iya samun darajar NLGI iri ɗaya amma mabanbantan mai-mai daban-daban, yayin da wasu biyun na iya samun dankowar mai-mai iri ɗaya amma nau'ikan NLGI iri ɗaya, wannan shine yanayin al'ada a cikin samfuran greases.
Abin da ya sa dole ne mu fahimci ainihin bukatar abokin ciniki.