I-ASTM A490 vs. I-ASTM A325 Bolts

Zombini ii-ASTM A490 kunye ne-ASTM A325 Bolts zinolwakhiwo olunzima lwe-hexiibholiti. Ngaba uyawazi umahluko phakathi kwe-ASTM A490 kunye ne-ASTM A325? Namhlanje, makhe sithethe ngayo.

Impendulo elula kukuba i-ASTM A490 i-hexagonal bolts enzima ineemfuno zamandla aphezulu kune-A325 enzima-umsebenzi we-hexagonal bolts. Iibholiti ze-A325 zinamandla asezantsi e-120ksi, ngelixa iibholithi ze-A490 zinoluhlu lwamandla oluyi-150-173ksi.

Ukongeza koku, kukho ezinye iiyantlukwano phakathi kwe-A490 kunye ne-A325.

Ukuqulunqwa kwezinto

• Iibholiti zesakhiwo ze-A325 zenziwe ngentsimbi yekhabhoni ephakathi, kunye nezona bholiti zixhaphakileyo ezifumaneka ekwakhiweni kwesakhiwo.
• Iibholiti ze-A490 zesakhiwo zenziwe ngentsimbi ephezulu yokushisa ukushisa
• A325 iibholiti zesakhiwo ingabaishushu-dip yenziwe yagalvanizedkwaye zixhaphake zifunyanwa naloo ngubo. Iibholiti ze-A325 zithandwa kakhulu ngenxa yeempawu zazo ezikwaziyo ukumelana nomhlwa.
• Iibholiti zesakhiwo ze-A490 zomelele, azinakuba shushu-diphu iigalvanized ngenxa yala mandla. Ngenxa yokuqina okuphezulu kweebholiti ze-A490, basengozini yokufakwa kwe-hydrogen ngenxa yokufaka i-galvanizing. Oku kunokukhokelela ekungaphumelelini kwangaphambili kwebholi kwaye isenokungomelelanga ngokwesakhiwo.

Iingubo

Uqwalaselo

Zombini iibholiti ze-A3125 kunye ne-A325 ziwela phantsi kwenkcazo ye-ASTM F490 kwaye zisetyenziselwa ngokukodwa iibholiti zesakhiwo. Ngokuqhelekileyo, iibholiti zesakhiwo ziibholiti zehex-duty enzima okanye iibholiti zolawulo loxinzelelo eziqhele ukuba mfutshane ngobude, zimfutshane kunomsonto ophakathi, kwaye azinakunciphisa idayamitha yomzimba.

Ngokwesiqhelo, ezinye izinto ezingaphandle zivumelekile. Ngaphambi kwe-2016, i-ASTM A325 kunye ne-ASTM A490 yayizinkcukacha ezahlukeneyo. Ukususela ngoko baye bahlelwa kwakhona njengeeklasi kwiinkcazo ze-F3125. Ekuqaleni, iibholiti ze-A325 kunye ne-A490 kwafuneka zibe nentloko enzima ye-hex kwaye akukho lulunye ulungelelwaniso oluvunyelweyo. Ukongeza, ubude bentambo emfutshane ayinakuguqulwa.

Nangona kunjalo, ngokwenkcazo entsha ye-F3125, nayiphi na isitayela sentloko sivumelekile kwaye ubude bentambo bungatshintshwa. Utshintsho kuqwalaselo oluqhelekileyo lwe-A325 kunye ne-A490 luchazwe ngokongeza i-"S" kwisimaki se-slope esisisigxina sentloko.

Omnye umahluko kubude bomsonto kukuba iibholiti ze-A325 ziveliswa ngobuninzi kwinguqulelo enemisonto epheleleyo, ngaphandle kokuba zinediamitha ezine okanye ngaphantsi ubude. Olu hlobo lwebholithi luqhele ukubizwa ngokuba yi-A325T. Uguqulelo oluthungelwe ngokupheleleyo lwale A325 bolt alufumaneki kwiibholiti ze-A490.

Uvavanyo

Iibholiti eziyi-A325 ezithengwe ngendongomane kunye newasha eqinisiweyo ziyafuneka ukuba zivavanywe umthamo wokujikeleza. Uvavanyo lomthamo ojikelezayo luqinisekisa ukuba indibano yebholithi iyakwazi ukuphuhlisa amandla okubamba afanelekileyo. Ukuze uphumelele uvavanyo, indibano kufuneka ifikelele kumlinganiselo omncinci wokujikeleza kwaye ifezekise ukunyanzeliswa okufunekayo ngaphambi kokungaphumeleli okuxhomekeke kububanzi kunye nobude be-galvanized A325 bolt. Ekubeni iibholiti ze-A490 zingenako ukuvuzwa, olu vavanyo alusebenzi.

Zonke iibholiti ze-A490 kufuneka ziphumelele uvavanyo lwesuntswana lamagnetic. Olu vavanyo lusetyenziselwa ukuqinisekisa ukuba akukho ziphene ezingaphantsi komhlaba okanye iintanda kwintsimbi ye-A490 bolt. Olu vavanyo alufunwa kwiibholithi ze-A325

I-ASTM A490

Okukwintsusa

Ekugqibeleni, injineli yakho iya kuchaza ukuba leliphi ibakala le-F3125 ibhowuthi yolwakhiwo ekufuneka uyisebenzise, ​​kodwa kubalulekile ukuqonda umahluko phakathi kwamabanga e-A325 kunye ne-A490. Ibanga le-A490 lomelele kunebakala le-A325, kodwa amandla asiyonto yodwa emisela ibholithi. Iibholiti ze-A490 azinakucwiliswa shushu okanye zenziwe ngesinyithi ngoomatshini. Ibanga le-A325 alinamandla kangako, kodwa lixabiso eliphantsi lebholithi elinokuthi lifakwe amazimba ukunqanda umhlwa.