Nigrol kapena tad 17. Chabwino n'chiti?
Zamkatimu
Kubalalika mu mawu
Ndikoyenera kuyamba ndi mfundo yakuti mu nthawi yathu pali mfundo ziwiri: "Nigrol" ndi nigrol. Zolemba ndizofunika. Choyamba, tikukamba za chizindikiro cha mafuta a gear, omwe amapangidwa ndi makampani ena (ku Russia, mwachitsanzo, ndi FOXY, Lukoil ndi ena ambiri). Chachiwiri - ponena za kutchulidwa kwa mafuta opangidwa kuchokera ku mitundu ina ya mafuta, ndipo munali mosakayika peresenti inayake ya zinthu zotulutsa utomoni, chifukwa chake iwo ali ndi dzina lawo (kuchokera ku liwu lachilatini "niger").
Kwa classical nigrol, mafuta ochokera kuminda ya Baku adakhala ngati zopangira zoyambira, pomwe popanga mafuta amakono amtundu uwu, gwero lazinthu zopangira sikofunikira kwenikweni. Chifukwa chake, chizindikiro ndi kapangidwe kazinthu zilizonse ndizosiyana, chifukwa chake Nigrol ndi Nigrol amafanana gawo lazogwiritsira ntchito (mafuta amafuta) ndi maziko amankhwala - mafuta a naphthenic - omwe amapangidwa. Ndipo ndi zimenezo!
Fananizani tsatanetsatane
Popeza kuti nigrol yachikale siyigwiritsidwa ntchito m'magalimoto amakono (ngakhale muyezo wa boma malinga ndi momwe mafuta opangira mafutawa adathetsedwa kale), ndizomveka kuyerekeza magawo ogwiritsira ntchito mafuta opangidwa pansi pa chizindikiro cha Nigrol, kufananiza ndi analogue wapafupi kwambiri, mafuta achilengedwe onse Tad- 17.
Chifukwa chiyani kwenikweni ndi Tad -17? Chifukwa ma viscosity a zinthu izi ndi ofanana, ndipo kusiyana kwakukulu kuli mumitundu ndi kuchuluka kwa zowonjezera. Kumbukirani kuti ku Soviet nigrol kunalibe kwenikweni: malinga ndi GOST 542-50, nigrol idagawidwa mu "chilimwe" ndi "dzinja". Kusiyana kwa mamasukidwe akayendedwe kunatsimikiziridwa kokha ndi ukadaulo wa distillation wamafuta: mu "dzinja" nigrol munali phula linalake, lomwe limasakanizidwa ndi distillate yotsika kwambiri.
Kusiyanitsa kwazinthu zazikulu kumawonekera patebulo:
| chizindikiro | Nigrol malinga ndi GOST 542-50 | Tad-17 malinga ndi GOST 23652-79 |
| Kachulukidwe, kg / m3 | Zomwe sizinafotokozedwe | 905 ... 910 |
| Kusasamala | 2,7… 4,5 * | Osapitirira 17,5 |
| kuthira point, 0С | -5....-20 | Osachepera -20 |
| pophulikira, 0С | 170 ... 180 | Osachepera 200 |
| Kukhalapo kwa zowonjezera | No | pali |
* yotchulidwa mu 0E ndi madigiri Engler. Kwa kutembenuka kukhala H - mayunitsi a kinematic viscosity, mm2/s - muyenera kugwiritsa ntchito fomula: 0E = 0,135h. Kukhuthala kwa ma viscosity komwe kukuwonetsedwa patebulo kumafanana pafupifupi 17…31 mm2/ kuchokera
Ndiye pambuyo pa zonse - nigrol kapena Tad-17: chomwe chili bwino?
Posankha mtundu wa mafuta a gear, muyenera kusamala osati dzina lake, koma mawonekedwe ake. Choyamba, ayenera kutsatira zofunikira za muyezo, ndipo, kachiwiri, sayenera kukhala ndi kufalikira kwakukulu pamtunda. Mwachitsanzo, ngati wopanga odziwika pang'ono akuwonetsa kuti kachulukidwe ka mafuta a giya ndi 890…910 kg/m.3 (zomwe sizimadutsa malire ovomerezeka), ndiye kuti munthu akhoza kukayikira kukhazikika kwa zizindikiro: zikutheka kuti "nigrol" yotereyi inapezedwa ndi makina osakanikirana a zigawo zingapo zosadziwika kwa ogula. Chenjezo lomwelo likugwiranso ntchito ku magawo ena onse.
Opanga odalirika a "nigrol" amakono amatengedwa kuti ndi FOXY, Agrinol, Oilright.
Ndipo potsirizira pake: samalani ndi zinthu zomwe, kuweruza ndi chizindikiro, sizipangidwa molingana ndi GOST 23652-79, koma molingana ndi mafakitale kapena, moipitsitsa, fakitale!
