Waxaa jira 4 boolal hexagon ah oo inta badan la isticmaalo:
1. GB/T 5780-2016 "Hexagon Head Bolts Class C"
2. GB/T 5781-2016 "Baladaha madaxa Hexagon oo leh darajada C dun buuxda"
3. GB/T 5782-2016 "Hexagon Head Bolts"
4. GB/T 5783-2016 "Hexagon boolal leh dun buuxda"
Farqiga ugu weyn ee u dhexeeya afarta boolal ee inta badan la isticmaalo waa sida soo socota:
1. Dhererka dunta kala duwan:
Dhererka duntu waa dun buuxda oo aan dhammaystirnayn.
Waxaa ka mid ah 4-ta boolal ee inta badan la isticmaalo
GB.
GB.
GB/T 5781-2016 "Hexagon Head Bolts Full Thread Grade C" waxay la mid tahay GB/T 5780-2016 "Hexagon Head Bolts Grade C" marka laga reebo in alaabtu ka samaysan tahay dun buuxda
GB. 200mm
Sidaa darteed, falanqaynta soo socota, waxa kaliya oo lagama maarmaan ah in laga hadlo farqiga u dhexeeya GB/T 5780-2016 "Hexagon Head Bolts Class C" iyo GB/T 5782-2016 "Hexagon Head Bolts".
2. Darajooyinka badeecadaha kala duwan:
Darajooyinka alaabada boolalku waxay u qaybsamaan darajooyinka A, B iyo C. Heerka badeecada waxaa lagu go'aamiyaa cabbirka dulqaadka. Darajo ayaa ugu saxsan, darajada C-na waa tan ugu saxsan.
GB.
GB.
Heerka GB/T 5782-2016 "Hexagon Head Bolts", darajada A waxaa loo isticmaalaa boolal leh d=1.6mm～24mm iyo l≤10d ama l≤150mm (sida ku cad qiimaha yar); Fasalka B waxaa loo isticmaalaa boolal leh d>24mm ama Bolts leh l>10d ama l>150mm (hadba ha yaraato).
Marka loo eego halbeegga qaranka GB/T 3103.1-2002 "Bolls Tolerance, Screws, Tuss and nuts for Fasteners", heerka dulqaadka dunta dibadda ee boolal leh darajada A iyo B waa "6g"; Heerka dulqaadka dunta dibadda waa "8g"; Heerarka dulqaadka cabbirka kale ee boolalku way kala duwan yihiin iyadoo loo eegayo saxnaanta darajooyinka A, B, iyo C.
3. Sifooyin farsamo oo kala duwan:
Sida laga soo xigtay xeerarka heerka qaran GB / T 3098.1-2010 "Guryaha makaanikada ee xidhiyaasha Bolts, boolal iyo Usha", guryaha farsamo ee boolal ka samaysan bir kaarboon iyo bir daawaha hoos xaaladda cabbir deegaanka ee 10 ℃ ~ 35 ℃ Waxaa jira 10 heerar, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9, 12.9.
Marka loo eego shuruudaha heerka qaran GB / T 3098.6-2014 "Guryaha Makaanikada ee Xajiyeyaasha - Boolasha Birta, Biraha iyo Usha", iyadoo la raacayo xaaladda cabbirka deegaanka ee 10 ℃～35 ℃, darajooyinka waxqabadka ee boolal laga sameeyay steel waa sida soo socota:
Bolts ka samaysan biraha austenitic ahama (oo ay ku jiraan A1, A2, A3, A4, A5 kooxaha) waxay leeyihiin fasalada hantida farsamada 50, 70, 80. kooxda birta ah, iyo qaybta labaad waxay calaamadisaa darajada waxqabadka, oo ay kala soocaan xariijimo, sida A2-70, isla hoos)
Bolts ka sameysan C1 kooxda martensitic ahama waxay leeyihiin darajooyin hanti farsamo oo ah 50, 70, iyo 110;
Bolts ka samaysan C3 kooxda martensitic ahama waxay leeyihiin fasalka hantida mashiinada 80;
Bolts ka sameysan C4 group martensitic ahama waxay leeyihiin darajooyin hanti farsamo oo ah 50 iyo 70.
Bolts-ka ka samaysan birta aan lahayn ee F1 martensitic waxay leeyihiin sifooyin farsamaysan fasalada 45 iyo 60.
Marka loo eego heerka qaran GB/T 3098.10-1993 "Guryaha makaanikada ee xirmooyinka - Bolts, boolal, biraha iyo nuts laga sameeyay biraha aan birta ahayn":
Sifooyinka farsamaysan ee boolal ka samaysan naxaasta iyo naxaasta daawaha waa: CU1, CU2, CU3, CU4, CU5, CU6, CU7;
Qalabka farsamada ee boolal ka samaysan aluminium iyo aluminium aluminium waa: AL1, AL2, AL3, AL4, AL5, AL6.
Heerarka qaranka GB/T 5780-2016 "Class C Hexagon Head Bolts" wuxuu ku haboon yahay darajada C dhalooyinka madax hexagon oo leh tilmaamo dunta M5 ilaa M64 iyo darajooyinka waxqabadka 4.6 iyo 4.8.
Heerarka qaranka GB/T 5782-2016 "Hexagon head bolts" waxay ku haboon tahay qeexida dunta M1.6～M64, iyo darajooyinka waxqabadku waa 5.6, 8.8, 9.8, 10.9, A2-70, A4-70, A2-50, A4-50, Fasalka A iyo B hex boolalka madaxa ee CU2, CU3 iyo AL4.
Midka kore waa farqiga ugu weyn ee u dhexeeya 4tan boolal ee inta badan la isticmaalo.
Codsiyada wax ku oolka ah, boolal-buuxa oo buuxa ayaa loo isticmaali karaa halkii laga isticmaali lahaa boolal aan dhammaystirnayn, iyo boolal heer sare ah ayaa la isticmaali karaa halkii laga isticmaali lahaa boolal heer hoose ah.
Si kastaba ha ahaatee, boolal-buuxa oo isku mid ah ayaa ka qaalisan biraha aan xadhig-buuxa ahayn, iyo darajooyinka waxqabadka sare waa ka qaalisan yihiin darajooyinka waxqabadka hooseeya.
Sidaa darteed, waqtiyada caadiga ah, boolalka waa in lagu doortaa iyadoo loo eegayo baahiyaha dhabta ah, oo kaliya waqtiyada gaarka ah waa inay "beddelaan dhammaan khaladaadka" ama "ku beddelaan kuwa sarreeya oo hooseeya".
Waqtiga boostada: Oct-20-2022