Mitundu Ndi Kusiyana Kwa Ulusi

Posachedwapa, ndinasokonezedwa ndi zofunikira za ulusi muzojambula zosiyanasiyana zamakasitomala.Kuti ndizindikire kusiyana, ndinapeza zidziwitso zoyenera ndikuzifupikitsa motere:

Ulusi wa chitoliro: makamaka umagwiritsidwa ntchito polumikizira chitoliro, ulusi wamkati ndi wakunja ukhoza kukhala wolimba, uli ndi chubu cholunjika ndi chubu chachulukidwe ziwiri.

Ulusi wapaipi wamba umaphatikizapo izi: NPT, PT, G ndi zina zotero.

1.NPT ulusi: American muyezo 60 digiri tapered chitoliro ulusi

NPT: Dzina lathunthu ndi National Pipe Thread, Yokhala ya US standard 60 degree tapered pipe thread, yomwe imagwiritsidwa ntchito ku North America, kupeza GB / T12716-1991.

2.PT(BSPT) ulusi: European ndi Commonwealth 55 digiri yosindikizidwa cone ulusi

PT(BSPT): dzina lathunthu ndi British Standard Pipe Thread, ndi 55 digiri yosindikizidwa, ya banja la Wyeth, yomwe imagwiritsidwa ntchito ku Ulaya ndi mayiko a Commonwealth, yomwe imagwiritsidwa ntchito kwambiri pamakampani amadzi ndi gasi, taper 1:16, access GB / T7306-2000.

G ulusi: 55 digiri yopanda ulusi yosindikiza ulusi

G ndi ulusi wosindikiza wa digiri 55 wopanda ulusi, ndi banja la ulusi wa Wyeth.Zolembedwa ngati G, zikutanthauza ulusi wozungulira.GB / T7307-2001.

Kusiyana pakati pa ulusi wa metric ndi ulusi wa inchi:

Ulusi wa metric umayimiridwa ndi phula, pamene ulusi wa US-inch umayimiridwa ndi chiwerengero cha ulusi pa inchi;

Metric ulusi ndi equilateral 60 digiri dzino mtundu, inchi ulusi ndi isosceles 55 madigiri dzino mtundu, American ulusi m'chiuno madigiri 60 dzino mtundu.

Ulusi wamametric mu mayunitsi a metric (monga mamilimita), ulusi wopangidwa ku America ndi ku Britain mu mainchesi (monga inchi)

Ngati pali zina zomwe sindinatchule, kapena ngati pali cholakwika, ndidziwitseni.

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