Pali mitundu 4 ya mtedza wa hex womwe umagwiritsidwa ntchito kwambiri:
1. GB/T 41-2016 “Type 1 Hex Nut Grade C”
2. GB/T 6170-2015 “Type 1 Hex Nut”
3. GB/T 6175-2016 “Type 2 Hex Nuts”
4. GB/T 6172.1-2016 “Hexagon Thin Nut”
Kusiyana kwakukulu pakati pa mtedza anayi omwe amagwiritsidwa ntchito kwambiri ndi awa:
1. Kutalika kwa mtedza ndi kosiyana:
Malinga ndi zomwe National Standard GB/T 3098.2-2015 "Mechanical Properties of Fasteners Nuts", pali mitundu itatu ya kutalika kwa mtedza:
——Mtundu wa 2, mtedza wambiri: kutalika kochepa mmin≈0.9D kapena >0.9D;
——Mtundu 1, nati wamba: kutalika kochepa mmin≈0.8D;
——Mtundu 0, nati woonda: kutalika kochepa 0.45D≤mmin<0.8D.
Chidziwitso: D ndiye m'mimba mwake mwadzina la ulusi wa mtedza.
Pakati pa mtedza anayi omwe amagwiritsidwa ntchito kwambiri:
GB/T 41-2016 “Type 1 Hex Nut Grade C” ndi GB/T 6170-2015 “Type 1 Hex Nut” ndi mtedza wamtundu wa Type 1, ndipo kutalika kwa mtedza ndi mmin≈0.8D.
GB/T 6175-2016 "Type 2 Hex Nuts" ndi mtedza wamtundu wa 2, ndipo kutalika kwa mtedza ndi mmin≥0.9D.
GB/T 6172.1-2016 "Hexagon Thin Nut" ndi mtundu wa 0 woonda mtedza, ndipo kutalika kochepa kwa mtedza ndi 0.45D≤mmin＜0.8D.
2. Zosiyanasiyana zamagulu:
Magulu a mtedza amagawidwa m'magulu A, B ndi C.The mankhwala makalasi anatsimikiza ndi kulolerana kukula.Giredi ndi yolondola kwambiri ndipo giredi C ndiyolondola kwambiri.
GB/T 41-2016 "Mtedza wa 1 Hexagon Grade C" imatchula mtedza wokhala ndi kalasi C molondola.
GB/T 6170-2015 “Type 1 Hexagonal Nuts”, GB/T 6175-2016 “Type 2 Hexagonal Nuts” ndi GB/T 6172.1-2016 “Hexagonal Thin Nuts” imatchula mtedza wolondola giredi A ndi giredi B molondola.
Mu GB/T 6170-2015 “Type 1 Hexagonal Nuts”, GB/T 6175-2016 “Type 2 Hexagonal Nuts” ndi GB/T 6172.1-2016 “Hexagonal Thin Nuts”, Gulu A imagwiritsidwa ntchito kwa mtedza wokhala ndi D≤16mm;Gulu B amagwiritsidwa ntchito ku mtedza wokhala ndi D> 16mm.
Malinga ndi muyezo wadziko lonse wa GB/T 3103.1-2002 "Fastener Tolerance Bolts, Screws, Studs and Nuts", ulusi wamkati wolekerera mtedza wa A-level ndi B-level mwatsatanetsatane ndi "6H";Kulekerera kwa ulusi wamkati ndi "7H";kulolerana kwa miyeso ina ya mtedza ndi yosiyana malinga ndi kulondola kwa magiredi A, B ndi C.
3. Zosiyanasiyana zamakina katundu
Malinga ndi zomwe zili mu National Standard GB/T 3098.2-2015 "Mechanical Properties of Fastener Nuts", mabawuti opangidwa ndi chitsulo cha carbon ndi alloy steel ali ndi mitundu 7 yamagiredi amachitidwe amakina pansi pa chikhalidwe cha chilengedwe cha 10 ° C mpaka 35. °C.Iwo ndi 04, 05, 5, 6, 8, 10, 12 motsatira.
Malinga ndi zomwe zili mu National Standard GB/T 3098.15-2014 "Mechanical Properties of Fasteners Stainless Steel Nuts", pomwe gawo la chilengedwe ndi 10 ° C mpaka 35 ° C, kuchuluka kwa mtedza wopangidwa ndi chitsulo chosapanga dzimbiri kumatchulidwa motere. :
Mtedza wopangidwa ndi chitsulo chosapanga dzimbiri cha austenitic (kuphatikiza A1, A2, A3, A4, A5 magulu) ali ndi zida zamakina 50, 70, 80 ndi 025, 035, 040. magawo, gawo loyamba likuwonetsa gulu lachitsulo, ndipo gawo lachiwiri likuwonetsa kalasi yochita bwino, yolekanitsidwa ndi mizere, monga A2-70, chimodzimodzi pansipa)
Mtedza wopangidwa ndi chitsulo chosapanga dzimbiri cha martensitic cha gulu C1 ali ndi makina amtundu wa 50, 70, 110 ndi 025, 035, 055;
Mtedza wopangidwa ndi chitsulo chosapanga dzimbiri cha martensitic cha gulu C3 chimakhala ndi makina a 80 ndi 040;
Mtedza wopangidwa ndi chitsulo chosapanga dzimbiri cha martensitic cha gulu C4 uli ndi makina amtundu wa 50, 70 ndi 025, 035.
Mtedza wopangidwa ndi F1 gulu la ferritic chitsulo chosapanga dzimbiri uli ndi makina amtundu wa 45, 60 ndi 020, 030.
Malinga ndi zomwe National Standard GB/T 3098.10-1993 "Mechanical Properties of Fasteners - Bolts, Screws, Studs and Nuts Opangidwa Ndi Zitsulo Zopanda ferrous":
Mtedza wopangidwa ndi zitsulo zamkuwa ndi zamkuwa zimakhala ndi makina opangira makina: CU1, CU2, CU3, CU4, CU5, CU6, CU7;
Mtedza wopangidwa ndi ma aluminiyamu ndi ma aloyi a aluminiyamu amakhala ndi makina ogwiritsira ntchito: AL1, AL2, AL3, AL4, AL5, AL6.
Muyezo wadziko lonse wa GB/T 41-2016 “Type 1 Hexagon Nut Grade C” umagwira ntchito ku mtedza wa grade C wokhala ndi ulusi wa M5 ~ M64 ndi giredi 5.
The national standard GB/T 6170-2015 "Type 1 Hexagon Nut" ikugwiritsidwa ntchito pazidziwitso za ulusi M1.6 ~ M64, masukulu ochita bwino ndi 6, 8, 10, A2-70, A4-70, A2-50, A4-50 , CU2 , CU3 ndi AL4 giredi A ndi B hex mtedza.
Muyezo wa dziko lonse wa GB/T 6175-2016 “Type 2 Hexagon Nuts” umagwira ntchito pamabowuti akumutu a giredi A ndi giredi B okhala ndi ulusi wa M5~M36 komanso magiredi 10 ndi 12.
Muyezo wadziko lonse wa GB/T 6172.1-2016 "Hexagon Thin Nut" umagwira ntchito pamatchulidwe a ulusi M1.6 ~ M64, magiredi ochita ndi 04, 05, A2-025, A2-035, A2-50, A4-035, CU2, CU3 ndi AL4 giredi A ndi B mtedza woonda wamakona atatu.
M'mimba mwake mwadzina lolingana ndi mtundu wa mtedza ndi kalasi ya magwiridwe antchito akuwonetsedwa patebulo pansipa.
Mtedza wokhazikika (mtundu wa 1) ndi mtedza wambiri (mtundu wa 2) wopangidwa ndi chitsulo cha carbon ndi alloy zitsulo ziyenera kugwiritsidwa ntchito ndi zomangira zakunja zakunja patebulo lotsatirali, ndipo mtedza wokhala ndi mphamvu zogwira ntchito zapamwamba ukhoza kulowetsa mtedza ndi magiredi otsika.
Mtedza wamba (mtundu 1) ndi womwe umagwiritsidwa ntchito kwambiri.
Mtedza wamtali (mtundu wa 2) nthawi zambiri umagwiritsidwa ntchito polumikizana komwe kumafuna kusokoneza pafupipafupi.
Mtedza woonda (Mtundu 0) uli ndi mphamvu yonyamula katundu wocheperapo kuposa mtedza wamba kapena wamtali, choncho usamapangidwe kuti ukhale woletsa kuyenda.
Mtedza wopyapyala (mtundu 0) umagwiritsidwa ntchito popanga mitembo iwiri yoletsa kumasula.
Nthawi yotumiza: Mar-06-2023