Ama-Bolt e-ASTM A490 vs. ASTM A325

Ama-ASTM A490 kanye nama-ASTM A325 Bolts akhiwe nge-hex heavy heavy.amabhawodiUyawazi umehluko phakathi kwe-ASTM A490 ne-ASTM A325? Namuhla, ake sixoxe ngakho.

Impendulo elula iwukuthi amabhawodi ayisithupha e-ASTM A490 anesidingo samandla aphezulu kunamabhawodi ayisithupha e-A325 anamandla aqinile. Amabhawodi e-A325 anamandla okudonswa okungenani angu-120ksi, kuyilapho amabhawodi e-A490 enendawo yamandla okudonswa engu-150-173ksi.

Ngaphezu kwalokhu, kuneminye imehluko phakathi kwe-A490 ne-A325.

Ukwakheka Kwezinto

• Amabhawodi esakhiwo se-A325 enziwe ngensimbi enamandla kakhulu yekhabhoni ephakathi, kanye namabhawodi avame kakhulu atholakala ekwakhiweni kwezakhiwo.
• Amabhawodi esakhiwo se-A490 enziwe ngensimbi enamandla kakhulu ephathwa ngokushisa
• Amabhawodi esakhiwo se-A325 angabai-hot-dip eqinisiwefuthi zivame ukutholakala naleyo ngubo. Amabhawodi e-A325 galvanized athandwa ngenxa yezakhiwo zawo ezingagqwali.
• Amabhawodi esakhiwo se-A490 aqinile, awakwazi ukushiswa ngokushisa ngenxa yalokhu kuqina. Ngenxa yamandla aphezulu okudonswa kwamabhawodi e-A490, asengozini yokuqhekeka yi-hydrogen ngenxa yokushiswa yi-galvanizing. Lokhu kungaholela ekuhlulekeni kwebhawodi ngaphambi kwesikhathi futhi kungase kungabi namandla ngokwesakhiwo.

Ukugqoka

Ukucushwa

Womabili amabhawodi e-A3125 kanye ne-A325 awela ngaphansi kwencazelo ye-ASTM F490 futhi asetshenziswa ngqo kumabhawodi esakhiwo. Ngokuvamile, amabhawodi esakhiwo angamabhawodi e-hex anzima noma amabhawodi okulawula ukucindezeleka avame ukuba mafushane ngobude, amafushane kunentambo evamile, futhi awakwazi ukunciphisa ububanzi bomzimba.

Ngokwesimiso, ezinye izinto ezihlukile ziyavunyelwa. Ngaphambi kuka-2016, i-ASTM A325 kanye ne-ASTM A490 kwakuyizincazelo ezihlukene. Kusukela lapho zahlukaniswa kabusha njengezigaba kuncazelo ye-F3125. Ekuqaleni, amabhawodi e-A325 kanye ne-A490 kwakudingeka abe nekhanda elisindayo le-hex futhi akukho okunye ukucushwa okwavunyelwa. Ngaphezu kwalokho, ubude bentambo obufushane abukwazi ukushintshwa.

Kodwa-ke, ngokusho kwencazelo entsha ye-F3125, noma yisiphi isitayela sekhanda sivunyelwe futhi ubude bentambo bungashintshwa. Izinguquko ekucushweni okuvamile kwe-A325 kanye ne-A490 zichazwa ngokungeza u-“S” kuphawu lokuthambekela oluhlala njalo lwekhanda.

Omunye umehluko ngobude bentambo ukuthi ama-bolt e-A325 akhiqizwa ngobuningi enguqulweni egcwele intambo, uma nje enobubanzi obune noma ngaphansi ngobude. Lolu hlobo lwe-bolt luvame ukubizwa ngokuthi i-A325T. Inguqulo egcwele intambo yale-bolt ye-A325 ayitholakali kuma-bolt e-A490.

Ukuhlolwa

Amabhawodi e-A325 galvanized athengwa nge-nut kanye ne-washer eqinile kudingeka ahlolwe umthamo wokujikeleza. Ukuhlolwa komthamo wokujikeleza kuqinisekisa ukuthi ukuhlanganiswa kwebhawodi kuyakwazi ukuthuthukisa amandla okubopha afanele. Ukuze kudlule ukuhlolwa, ukuhlanganiswa kumele kufinyelele inani elincane lokujikeleza futhi kufinyelele ukucindezeleka okudingekayo ngaphambi kokwehluleka okuncike kububanzi nobude bebhawodi le-A325 galvanized. Njengoba amabhawodi e-A490 engenakugaywa, lokhu kuhlolwa akusebenzi.

Wonke amabhawodi e-A490 kumele aphumelele ukuhlolwa kwezinhlayiya ezisebenzisa ugesi. Lokhu kuhlolwa kusetshenziselwa ukuqinisekisa ukuthi azikho iziphambeko noma imifantu engaphansi komhlaba ensimbini yebhawodi le-A490. Lokhu kuhlolwa akudingekile kumabhawodi e-A325

I-ASTM A490

Umugqa Ophansi

Ekugcineni, unjiniyela wakho uzocacisa ukuthi yiliphi ibanga lebhawodi yesakhiwo se-F3125 okudingeka ulisebenzise, ​​kodwa kubalulekile ukuqonda umehluko phakathi kwamabanga e-A325 ne-A490. Ibanga le-A490 linamandla kunebanga le-A325, kodwa amandla akuyona yodwa into enquma ibhawodi. Amabhawodi e-A490 awakwazi ukucwiliswa ngokushisa noma ukugaywa ngomshini. Ibanga le-A325 alinamandla kangako, kodwa liyibhawodi ebiza kancane engagaywa ukuze kugwenywe ukugqwala.