I-ASTM A490 vs. I-ASTM A325 Bolts

Womabili ama-ASTM A490 kanye ne-ASTM A325 Bolts anesakhiwo esindayo se-hexamabhawodi. Uyawazi umehluko phakathi kwe-ASTM A490 ne-ASTM A325? Namuhla, ake sikhulume ngakho.

Impendulo elula ukuthi i-ASTM A490 i-hexagonal bolts esindayo inezidingo zamandla eziphakeme kune-A325 heavy-duty hexagonal bolts. Amabhawodi e-A325 anamandla amancane okudonsa angu-120ksi, kuyilapho amabhawodi e-A490 enobubanzi obuqinile obungu-150-173ksi.

Ngaphezu kwalokhu, kukhona omunye umehluko phakathi kwe-A490 ne-A325.

Ukubunjwa Kwezinto Ezibalulekile

• Amabhawodi esakhiwo se-A325 enziwe ngensimbi ye-carbon medium high-strength, kanye namabhawodi atholakala kakhulu ekwakhiweni kwesakhiwo.
• Amabhawodi esakhiwo se-A490 enziwe ngensimbi enamandla amakhulu ephethwe ukushisa
• A325 amabhawodi esakhiwo kungabai-hot-dip ifakwe ama-galvanizedfuthi ngokuvamile atholakala naleyo ngubo. Amabhawodi angama-A325 adumile ngenxa yezakhiwo zawo ezimelana nokugqwala.
• Amabhawodi esakhiwo se-A490 anamandla, awakwazi ukushiswa amadiphu ngenxa yala mandla. Ngenxa yamandla amakhulu okunyakazisa amabhawodi e-A490, asengozini yokugqitshwa kwe-hydrogen ngenxa yokufaka uthayela. Lokhu kungaholela ekuhlulekeni ngaphambi kwesikhathi kwebhawodi futhi kungase kungabi namandla ngokwesakhiwo.

Izembatho

Ukucushwa

Womabili amabhawodi e-A3125 kanye ne-A325 awela ngaphansi kokucaciswa kwe-ASTM F490 futhi asetshenziselwa ikakhulukazi amabhawodi esakhiwo. Ngokuvamile, amabhawodi esakhiwo amabhawodi e-hex esindayo noma amabhawodi okulawula ukungezwani avamise ukuba mafishane ngobude, amafushane kunomucu omaphakathi, futhi awakwazi ukunciphisa ububanzi bomzimba.

Ngokwejwayelekile, okunye okuhlukile kuvunyelwe. Ngaphambi kuka-2016, i-ASTM A325 ne-ASTM A490 bekuyizincazelo ezihlukene. Kusukela lapho aphinde ahlukaniswa njengamakilasi ekucacisweni kwe-F3125. Ekuqaleni, amabhawodi e-A325 ne-A490 bekufanele abe nekhanda elisindayo le-hex futhi akukho okunye ukucupha okuvunyelwe. Ngaphezu kwalokho, ubude bentambo emfushane abukwazi ukushintshwa.

Kodwa-ke, ngokusho kwencazelo entsha ye-F3125, noma yisiphi isitayela sekhanda sivunyelwe futhi ubude bentambo bungashintshwa. Izinguquko ekucushweni okujwayelekile kwe-A325 kanye ne-A490 zicaciswa ngokwengeza u-“S” kumaka we-slope unomphela wekhanda.

Omunye umehluko ngobude bentambo ukuthi amabhawodi e-A325 akhiqizwa ngobuningi ngenguqulo enentambo egcwele, inqobo nje uma engamadayamitha amane noma ngaphansi ngobude. Lolu hlobo lwebhawodi lujwayele ukubizwa ngalo nge-A325T. Inguqulo ecushwe ngokugcwele yale bhawodi ye-A325 ayitholakali kumabhawodi e-A490.

Ukuhlola

Amabhawodi angama-A325 athengwa ngamantongomane newasha eqinile ayadingeka ukuze kuhlolwe umthamo wokujikeleza. Ukuhlolwa kwamandla okujikeleza kuqinisekisa ukuthi ukuhlanganiswa kwebhawudi kuyakwazi ukuthuthukisa amandla okubamba afanele. Ukuze uphumelele isivivinyo, umhlangano kufanele ufinyelele inani elincane lokujikeleza futhi uzuze ukungezwani okudingekayo ngaphambi kokwehluleka okuncike kububanzi nobude bebhawudi ye-A325 ebiyelwe. Njengoba amabhawodi e-A490 engakwazi ukufakwa uthayela, lokhu kuhlola akusebenzi.

Wonke amabhawodi e-A490 kumele aphumelele ukuhlolwa kwezinhlayiyana kazibuthe. Lokhu kuhlola kusetshenziselwa ukuqinisekisa ukuthi azikho iziphambeko noma imifantu engaphansi kwensimbi yebhawodi ye-A490. Lokhu kuhlola akudingekile kumabhawodi e-A325

I-ASTM A490

Umugqa Ongezansi

Ekugcineni, unjiniyela wakho uzocacisa ukuthi yiliphi ibanga le-F3125 ibhawudi lesakhiwo okudingeka ulisebenzise, ​​kodwa kubalulekile ukuqonda umehluko phakathi kwebanga le-A325 ne-A490. Ibanga le-A490 linamandla kunebanga le-A325, kodwa amandla akuwona kuphela isici esinquma ibhawudi. Amabhawodi e-A490 awakwazi ukucwiliswa ngokushisa noma afakwe uthayela. Ibanga le-A325 alinamandla kangako, kodwa liyibhawodi elibiza kancane elingafakwa uthayela ukugwema ukugqwala.