Waxaa jira 4 nooc oo looska hex ah oo inta badan la isticmaalo:
1. GB/T 41-2016 "Nooca 1 Hex Nut Fasalka C"
2. GB/T 6170-2015 "Nooca 1 Hex Nut"
3. GB/T 6175-2016 "Nooca 2 Hex nuts"
4. GB/T 6172.1-2016 "Hexagon khafiif ah"
Farqiga ugu weyn ee u dhexeeya afarta lowska ee inta badan la isticmaalo waa sida soo socota:
1. Dhererka lowska way kala duwan yihiin:
Marka loo eego qodobbada heerka qaran GB/T 3098.2-2015 "Guryaha Makaanikada ee Nuts", waxaa jira saddex nooc oo dhererka lowska:
——Nooca 2, lowska sare: dhererka ugu yar mmin≈0.9D ama>0.9D;
——Nooca 1, lowska caadiga ah: dhererka ugu yar mmin≈0.8D;
——Nooca 0, lowska dhuuban: dhererka ugu yar 0.45D≤mmin<0.8D.
Xusuusin: D waa dhexroorka magaca dunta lowska.
Waxaa ka mid ah afarta lowska ee sida caadiga ah loo isticmaalo:
GB/T 41-2016 "Nooca 1 Hex Nut Grade C" iyo GB/T 6170-2015 "Nooca 1 Hex Nut" waa Nooca 1 ee lowska caadiga ah, dhererka ugu yar ee lowska waa mmin≈0.8D.
GB/T 6175-2016 "Nooca 2 Hex Nuts" waa nooca 2 lowska sare, iyo dhererka ugu yar ee lowska waa mmin≥0.9D.
GB.
2. Darajooyinka badeecadaha kala duwan:
Darajooyinka wax soo saarka ee lawska waxa loo qaybiyaa darajooyin A, B iyo C.Darajooyinka badeecada waxaa lagu go'aamiyaa cabbirka dulqaadka.Darajo ayaa ah tan ugu saxsan halka darajada C ay tahay tan ugu saxsan.
GB/T 41-2016 "Nooca 1 Hexagon Nuts Fasalka C" wuxuu qeexayaa nuts leh darajada C sax
GB/T 6170-2015 "Nooca 1 Nuts Laba geesood ah", GB/T 6175-2016 "Nooca 2 Nuts laba geesood ah" iyo GB/T 6172.1-2016 "Liiska laba geesoodka ah" ayaa qeexaya lowska leh darajada A iyo heerka B saxda ah.
In GB/T 6170-2015 "Nooca 1 Hexagonal Nuts", GB/T 6175-2016 "Nooca 2 Hexagonal Nuts" iyo GB/T 6172.1-2016 "Laadka khafiifka ah", Fasalka A waxaa loo isticmaalaa lowska leh D≤16mm;Darajada B waxaa loo isticmaalaa lowska leh D>16mm.
Marka loo eego heerka qaranka GB/T 3103.1-2002 "Bolts Tolerance Bolts, Screws, Studs and Mints", heerka dulqaadka dunta gudaha ee heerka A iyo lowska saxda ah ee heerka B waa "6H";Heerka dulqaadka ee dunta gudaha waa "7H";darajooyinka dulqaadka ee cabbirada kale ee lawska way kala duwan yihiin marka loo eego saxnaanta darajooyinka A, B iyo C.
3. Heerarka kala duwan ee sifooyinka farsamada
Marka loo eego qodobbada heerka qaran GB/T 3098.2-2015 "Guryaha Makaanikada ee Nuts-ka", boolal ka samaysan birta kaarboonka iyo birta daawaha waxay leeyihiin 7 nooc oo darajooyin waxqabad farsamo oo hoos yimaada xaaladda cabbir deegaan 10 ° C ilaa 35 °C.Waxay kala yihiin 04, 05, 5, 6, 8, 10, 12 siday u kala horreeyaan.
Marka loo eego qodobbada heerka qaran GB/T 3098.15-2014 "Guryaha Makaanikada ee Xajiyeyaasha Miraha Birta ah", marka cabbirka deegaanku yahay 10 ° C ilaa 35 ° C, darajooyinka waxqabadka nuts ee ka samaysan birta aan birta lahayn ayaa lagu qeexay sida soo socota :
Miraha ka samaysan birta austenitic (oo ay ku jiraan A1, A2, A3, A4, A5 kooxaha) waxay leeyihiin sifooyin farsamo oo ah 50, 70, 80 iyo 025, 035, 040. Qaybaha, qaybta hore waxay calaamadisaa kooxda birta ah, qaybta labaadna waxay calaamadisaa darajada waxqabadka, oo ay kala soocaan dashes, sida A2-70, isla hoos)
Miraha ka samaysan birta martensitic ee kooxda C1 waxay leeyihiin darajooyin hanti farsamo oo ah 50, 70, 110 iyo 025, 035, 055;
Miraha ka samaysan birta birta ah ee martensitic ee kooxda C3 waxay leeyihiin sifooyin farsamo oo ah 80 iyo 040;
Miraha ka samaysan birta martensitic ee kooxda C4 waxay leeyihiin darajooyin hanti farsamo oo ah 50, 70 iyo 025, 035.
Miraha ka samaysan birta aan dawliga lahayn ee F1 group waxay leeyihiin darajooyin hanti farsamo oo ah 45, 60 iyo 020, 030.
Marka loo eego qodobbada heerka qaran GB/T 3098.10-1993 "Guryaha Makaanikada ee Xajiyeyaasha - Bolts, Screws, Tuss iyo Nuts Laga Sameeyey Biraha Aan-ferrous":
Miraha ka samaysan naxaasta iyo daawaha naxaasta waxay leeyihiin darajooyin waxqabad farsamo: CU1, CU2, CU3, CU4, CU5, CU6, CU7;
Miraha ka samaysan aluminium iyo aluminium aluminium waxay leeyihiin darajooyin waxqabad farsamo: AL1, AL2, AL3, AL4, AL5, AL6.
Heerarka qaranka GB/T 41-2016 "Nooca 1 Hexagon Nut Grade C" ayaa lagu dabaqi karaa darajada C hexagon lowska oo leh tilmaamo dunta M5 ~ M64 iyo heerka waxqabadka 5.
Heerka qaranka GB/T 6170-2015 "Nooca 1 Hexagon Nut" ayaa lagu dabaqi karaa qeexitaannada dunta M1.6~M64, darajooyinka waxqabadku waa 6, 8, 10, A2-70, A4-70, A2-50, A4-50 , CU2 , CU3 iyo AL4 darajada A iyo B hex nuts.
Heerarka qaranka GB/T 6175-2016 "Nooca 2 Hexagon Nuts" ayaa lagu dabaqi karaa darajada A iyo darajada B hexagon boolal leh tilmaamo dun ah M5~M36 iyo waxqabadka fasalada 10 iyo 12.
Heerka qaranka GB/T 6172.1-2016 "Hexagon Thin Nut" ayaa lagu dabaqi karaa qeexitaannada dunta M1.6 ~ M64, darajooyinka waxqabadku waa 04, 05, A2-025, A2-035, A2-50, A4-035, CU2, CU3 iyo AL4 darajada A iyo B ee lowska khafiifka ah ee laba geesoodka ah.
Kala duwanaanshaha dhexroorka magacaaban ee u dhigma nooca lowska iyo heerka waxqabadka ayaa lagu muujiyay shaxda hoose.
Nuska caadiga ah (nooca 1) iyo lowska sare (nooca 2) ee ka samaysan birta kaarboonka iyo birta daawaha ah waa in lagu isticmaalo xidhidhiyeyaasha dunta dibadda ee shaxdan soo socota, iyo lowska leh heerar tamareed oo sarreeya waxay ku beddeli karaan lowska oo leh darajooyin waxqabad hoose.
Nuska caadiga ah (nooca 1) ayaa ah kuwa ugu isticmaalka badan.
Nuska dhaadheer (nooca 2) ayaa guud ahaan loo adeegsadaa isku xirka u baahan kala furfurid joogto ah.
Lowska khafiifka ah (Nooca 0) waxay leeyihiin culeys ka hooseeya kuwa caadiga ah ama looska dheer, markaa waa inaan loo qaabeynin codsiyada ka hortagga jabka.
Nuska khafiifka ah (nooca 0) ayaa guud ahaan loo isticmaalaa qaab-dhismeedyada ka-hortagga-dabacsan ee laba-labaha ah.
Waqtiga boostada: Mar-06-2023