Udupira twa ASTM A490 ugereranije na ASTM A325

Bolts za ASTM A490 na ASTM A325 zombi zifite imiterere iremereye ya heximigozi. Ese uzi itandukaniro riri hagati ya ASTM A490 na ASTM A325? Uyu munsi, reka tubiganireho.

Igisubizo cyoroshye ni uko imigozi ikomeye ya ASTM A490 ifite imbaraga nyinshi kurusha imigozi ikomeye ya A325. Imigozi ya A325 ifite imbaraga nkeya zo gukurura 120ksi, mu gihe imigozi ya A490 ifite imbaraga zo gukurura 150-173ksi.

Uretse ibi, hari n'andi matandukaniro hagati ya A490 na A325.

Imiterere y'ibikoresho

• Amabati yo mu nyubako ya A325 akozwe mu cyuma gikomeye cya karuboni, kandi ni yo akunze kuboneka mu bwubatsi bw'inyubako.
• Amabati y'ubwubatsi ya A490 akozwe mu cyuma gikomeye gishyushye
• Ibikoresho by'ubwubatsi bya A325 bishobora kubaishyushye cyanekandi zikunze kuboneka hamwe n'iyo myenda. Amabati ya A325 azwi cyane kubera ubushobozi bwayo bwo kwirinda ingese.
• Udupira tw’icyuma twa A490 turakomeye, ntidushobora gushyuha cyane bitewe n’ubu bukomezi. Kubera imbaraga nyinshi zo gukurura utwo dupira twa A490, tuba dufite ibyago byo kwangirika kwa hydrogen bitewe no gushonga. Ibi bishobora gutuma utwo dupira duto dupfa vuba kandi dushobora kugabanuka mu buryo burambye.

Imyambaro

Imiterere

Bolts zombi za A3125 na A325 zigengwa n’ibipimo bya ASTM F490 kandi zikoreshwa by’umwihariko kuri bolts z’imiterere. Ubusanzwe, bolts z’imiterere ni bolts zikomeye cyangwa bolts zo kugenzura umuvuduko zisanzwe ziba ngufi mu burebure, ngufi ugereranije n’umugozi usanzwe, kandi zidashobora kugabanya umurambararo w’umubiri.

Dukurikije ibisanzwe, hari ibitagenda neza byemewe. Mbere ya 2016, ASTM A325 na ASTM A490 byari ibipimo bitandukanye. Kuva icyo gihe byahinduwe mu byiciro mu bipimo bya F3125. Mbere na mbere, bolts za A325 na A490 zagombaga kugira umutwe uremereye kandi nta zindi mbonerahamwe zemewe. Byongeye kandi, uburebure bw'umugozi mugufi ntibushobora guhindurwa.

Ariko, dukurikije ibisobanuro bishya bya F3125, imiterere iyo ari yo yose y'umutwe iremewe kandi uburebure bw'umugozi bushobora guhinduka. Impinduka ku miterere isanzwe ya A325 na A490 zigenwa no kongeramo "S" ku kimenyetso gihoraho cy'umutwe.

Irindi tandukaniro mu burebure bw'umugozi ni uko imigozi ya A325 ikorwa mu buryo bwinshi mu buryo bwuzuye, mu gihe ifite uburebure bwa diametero enye cyangwa munsi yayo. Ubwo bwoko bwa migozi bukunze kwitwa A325T. Imigozi yuzuye y'iyi migozi ya A325 ntabwo iboneka kuri migozi ya A490.

Isuzuma

Udupira twa A325 galvanized tugurwa hakoreshejwe nut na washer ikomeye, tugomba gupimwa ubushobozi bwo kuzunguruka. Ikizamini cy'ubushobozi bwo kuzunguruka gihamya ko galvanized ishobora kugira imbaraga zo gufunga neza. Kugira ngo itsinde ikizamini, galvanized igomba kugera ku rugero rwo hasi kandi ikagera ku muvuduko ukenewe mbere yuko inanirwa bitewe n'umurambararo n'uburebure bwa galvanized A325. Kubera ko galvanized A490 idashobora gushyuha, iki kizamini ntigikurikizwa.

Bolts zose za A490 zigomba gutsinda ikizamini cya magnetic particles. Iki kizamini gikoreshwa kugira ngo hamenyekane ko nta nenge cyangwa imiturire biri munsi y'ubuso bw'icyuma cya bolts za A490. Iki kizamini ntigikenewe kuri bolts za A325.

ASTM A490

Umurongo w'ingenzi

Amaherezo, injeniyeri wawe azagaragaza urwego rwa F3125 structural bolt ugomba gukoresha, ariko ni ngombwa gusobanukirwa itandukaniro riri hagati y’urwego rwa A325 na A490. Urwego rwa A490 rurakomeye kurusha urwego rwa A325, ariko imbaraga si cyo kintu cyonyine kigena bolt. Udupira twa A490 ntidushobora gushyushwa cyangwa ngo dukoreshwe mu buryo bwa lisansi. Urwego rwa A325 ntabwo rukomeye cyane, ariko ni bolt ihendutse ishobora gukomezwa kugira ngo hirindwe ingese.