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Alaabta
barroosinno 7-qaabeeya (bolal barroosin oo 7-qaab ah)
Barroosinka 7-qaabeeya ayaa loo magacaabay sababta oo ah hal daraf ee boolka ayaa u soo laalaabtay qaab “7”. Waa mid ka mid ah noocyada aasaasiga ah ee boolal barroosinka. Qaab dhismeedkeeda waxaa ka mid ah jir ul dun leh iyo jillaab L-qaabeeya. Qaybta jillaabtu waxay ku duugan tahay aasaaska la taaban karo waxayna ku xiran tahay qalabka ama qaab dhismeedka birta iyada oo loo marayo lowska si loo gaaro hagaajin xasilloon.
Sharaxaada
calaamadeeye
Qeexida alaabta iyo qaab dhismeedka
Barroosinka 7-qaabeeya ayaa loo magacaabay sababta oo ah hal daraf oo boolku waxa uu u foorarsaday qaab "7". Waa mid ka mid ah noocyada aasaasiga ah ee boolal barroosinka. Qaab dhismeedkeeda waxaa ka mid ah jir ul dun leh iyo jillaab L-qaabeeya. Qaybta jillaabtu waxay ku duugan tahay aasaaska la taaban karo waxayna ku xiran tahay qalabka ama qaab dhismeedka birta iyada oo loo marayo lowska si loo gaaro hagaajin xasilloon.
Qalabka muhiimka ah iyo sifooyinka
Qalab: Sida caadiga ah loo isticmaalo Q235 birta caadiga ah ee kaarboonka (xoog dhexdhexaad ah, qiimo jaban), Q345 birta alloy hoose (xoogga sare) ama 40Cr aluminium bir ah (xoog aad u sarreeya), dusha sare ayaa la galvanized karaa (kulul-kulul galvanized ama electro-galvanized) ilaalinta daxalka.
Astaamaha:
- Rakibaadda dabacsan: Naqshadeynta jillaabtu waxay kor u qaadaysaa awoodda haynta ee shubka waxayna ku habboon tahay hagaajinta qalabka yaryar iyo kuwa dhexdhexaadka ah;
- Waxqabadka soo jiidashada: Ka-qaybgalka farsamada ee u dhexeeya jillaabyada iyo shubka ayaa ka hortagaya xoogga kor u qaadista;
- Halbeegista: Waxay u hoggaansamaan heerarka qaranka sida GB/T 799, iyo qeexitaannada waa ikhtiyaari M16 ilaa M56.
Hawlaha iyo xaaladaha lagu dabaqi karo
Hawlaha:
Hagaaji tiirarka qaab dhismeedka birta, saldhigyada laambada waddooyinka, iyo qalabka yar yar ee farsamada;
Qaado culeysyo taagan, sida xargaha dhismooyinka iyo xayeesiinta.
Muuqaal:
Injineerinka degmada (Laambadaha jidadka, calamadaha taraafiggu), warshado qaab dhismeedka birta fudud, iyo qalabka guriga (sida qaboojiyaha qaybta bannaanka ee xidhmooyinka).
Rakibaadda iyo dayactirka
Rakibaadda:
Godad kayd ah oo ku yaal aasaaska shubka ah, geli cagaha 7-qaabeeya iyo kabka;
Ku adkee qalabka lowska oo hagaaji heerka markaad rakibayso.
Dayactirka:
Si joogto ah u hubi cidhiidhiga lawska, iyo lakabka galvanized ee dhaawacan ayaa u baahan in lagu rinjiyeeyo ilaalinta daxalka.
Iibka talooyinka
Dooro agabka si waafaqsan culeyska: Q235 waxay ku habboon tahay muuqaallada caadiga ah, Q345 waxay ku habboon tahay culeysyada sare (sida buundooyinka);
Dhererka jillaabku waa inuu buuxiyaa shuruudaha qoto dheer ee aaska la taaban karo (sida caadiga ah 25 jeer dhexroorka boodhka).
Isbarbardhigga iyo hagaha xulashada saddexda barroosin ee waaweyn
| Nooca | barroosin 7-qaabaysan | barroosinka saxan alxanka | dallada gacanta barroosinka |
| Faa'iidooyinka asaasiga ah | Habayn, qiimo jaban | Awoodda culeyska sarreeya, caabbinta gariirka | Ku-xidhka dabacsan, dhaqaalaha |
| Culays lagu dabaqi karo | 1-5 tan | 5-50 tan | 1-3 tan |
| Xaaladaha caadiga ah | Nalalka waddooyinka, qaababka birta fudud | Buundooyinka, qalab culus | Dhismayaal ku meel gaar ah, mashiino yaryar |
| Habka rakibidda | Ku-xidhka + xidhitaanka lowska | Ku dhejinta + suufka alxanka | Ku-xidhka + xidhitaanka lowska |
| Heerka iska caabbinta daxalka | Electrogalvanizing (caadi ah) | Galvanizing-kulul + rinjiyeyn ( iska caabin daxalka sare leh) | Galvanizing (caadi) |
Soo jeedinta xulashada:
Baahiyaha dhaqaale: Barroosinnada gacanta ee dallada ayaa la door bidaa, iyadoo la tixgelinayo qiimaha iyo shaqada labadaba;
Baahiyaha xasilloonida sare: Barroosinnada saxan welded ayaa ah doorashada koowaad ee qalabka culus;
Xaalado la jaan-qaaday: Barroosinnada 7-qaabeeya waxay ku habboon yihiin badi baahiyaha hagaajinta caadiga ah.
nala soo xidhiidh
Alaabooyinka caanka ah ee la xidhiidha
Koronto-galvanized countersunk boolal iskutallaabta
Madaxa bolt-ka isdhaafka ah ee countersunk waa mid toosan oo si buuxda loogu dhejin karaa dusha sare ee qaybaha ku xiran si loo ilaaliyo muuqaal siman (GB/T 68 heerka). Alaabooyinka caadiga ah waa birta kaarboon, birta aan la taaban karin ama balaastikada injineernimada (sida naylon 66), oo leh midab galvanized ama dabiici ah oo dusha sare ah.
Astaamaha alxanka qaab dhismeedka birta
Qalabka alxanka waxaa ka mid ah SWRCH15A, ML15AL ama ML15, iyo birta kaarboon ee caadiga ah Q195...
Midab galvanized galvanized silig dalool lix geesood ah
Passivation chromate Rainbow (c2C) oo ku saleysan koronto-galvanizing, dhumucdiisuna waxay tahay 8-15μm, tijaabada buufinta milixda in ka badan 72 saacadood. Marka la isticmaalayo habka bakhtiinta chromium trivalent, waxay u hoggaansantaa dardaaranka ilaalinta deegaanka ee RoHS, iyo waxa ku jira chromium hexavalent waa ≤1000ppm.
Midabka zinc-plated nuts
Midabada zinc-plated nuts waxaa lagu saleeyaa koronto-galvanization si loo sameeyo filim passivation midab leh qaanso-roobaad (oo ka kooban chromium trivalent ama chromium hexavalent) oo dhumucdiisuna tahay filim qiyaastii 0.5-1μm. Wax qabadkeeda ka-hortagga daxalka ayaa si weyn uga wanaagsan electrogalvanizing caadiga ah, iyo midabka dusha sare waa dhalaalaya, oo leh shaqeyn iyo qurxiyo labadaba.
lowska ka-hortagaya (quful lowska)
Lowska ka-hortagga-dabcintu waa lowska ka hortagaya inuu dabciyo lowska iyadoo loo marayo naqshad gaar ah.
Midabka zinc ku dahaadhay boolal lix geesood ah
Dhalooyinka laba geesoodka ah ayaa ah kuwa ugu caansan ee leh madaxyo laba geesood ah waxaana lagu isticmaalaa looska (Heerka GB/T 5780). Qalabka caadiga ah waa Q235 ama 35CrMo, oo leh sagxadaha galvanized ama madow.
Boolal balaarineed oo zinc ah oo midab leh
Habka passivation zinc midabka (c2C) waa la ansixiyay, dhumucdiisuna waxay daahan waa 8-15μm, iyo iska caabbinta daxalka ee tijaabada buufinta cusbo waa in ka badan 72 saacadood, kaas oo uu leeyahay labadaba ka hortagga daxalka iyo qurxinta.
Dunta laydhka iskutallaabta ee iskutallaabta ka samaysan ee zinc-plated
Dhumucda midabka zinc passivation film waa 8-15μm, tijaabada buufinta milixdu waa in ka badan 72 saacadood, muuqaalkuna waa midab qaanso roobaad. Marka trivalent chromium passivation la isticmaalo, waxqabadka ilaalinta deegaanku waa mid aad u wanaagsan.
Looska madow ee xoogga badan
Looska madow ee xoogga badan waa lawska ka sameysan filimka madow ee Fe₃O₄ oxide ee dusha sare ee birta daawaha iyada oo loo marayo oksaydheynta kiimikada (daawaynta madow). Maaddada saldhigga ahi badanaa waa 42CrMo ama 65 birta manganese. Ka dib marka la demiyo + daawaynta xanaaqa, engegnaanta waxay gaari kartaa HRC35-45.
Boolal balaarin koronto galiyay
Waxay ka kooban tahay boolal countersunk, tuubooyinka ballaarinta, weel fidsan, dhaqida guga iyo lawska laba geesoodka ah. Maaddadu waxay u badan tahay birta kaarboon (sida Q235), dhumucda lakabka elektiroonigga ah waa 5-12μm, kaas oo la kulma heerarka ISO 1461 ama GB/T 13912-2002.
Balanbaalis
Madaxa boodhka balanbaalista ayaa u qaabaysan balanbaalis, kaas oo ay fududahay in gacanta lagu adkeeyo iyada oo aan qalab la helin (Heerka GB/T 65). Alaabta caadiga ah waa balaastiig (POM, PA66) ama birta aan la taaban karin, oo leh dusha dabiiciga ah ama korantada.
Boolal zinc-midab leh
Madaxa bolt flange wuxuu leeyahay flange wareegsan si uu u kordhiyo aagga xidhiidhka iyo kala firdhiso cadaadiska (standard GB/T 5787, GB/T 5789). Tilmaamaha guud ee M6-M30, walxaha Q235 ama 35CrMo, dusha sare ee galvanized ama madow.
Dunta qodista lix geesoodka ah ee koronto-galvanized
Laga sameeyay 1022A bir kaarboon ah, engegnaanta dusha sare waxay gaartaa HV560-750 daawaynta kulaylka ka dib, iyo adkaanta xudunta u ah waxay gaartaa HV240-450. Dusha sare waa electro-galvanized si loo sameeyo daahan 5-12μm ah, kaas oo la kulma heerka GB/T 13912-2002, iyo tijaabada buufinta milixdu waxay gaartaa 24-48 saacadood iyada oo aan lahayn miridh cad.
godad saddex geesood ah oo koronto galvanized ah
Madaxa birta godka heksagon waxa uu leeyahay dalool godka lix geesoodka waxana uu u baahan yahay in lagu adkeeyo furaha godka lix geesoodka (Heerka GB/T 70.1). Qalabka caadiga ah waa 35CrMo ama 42CrMo, daawaynta dushana waxa loo qaybiyaa saddex nooc: Electrogalvanized, Zinc-plated color, iyo zinc-plated madow.
Hexagon godad kul-kulul boolal galvanized
Madaxa birta godka heksagon waxa uu leeyahay dalool godka lix geesoodka waxana uu u baahan yahay in lagu adkeeyo furaha godka lix geesoodka (Heerka GB/T 70.1). Qalabka caadiga ah waa 35CrMo ama 42CrMo, daawaynta dushana waxa loo qaybiyaa saddex nooc: Electrogalvanized, Zinc-plated color, iyo zinc-plated madow.
dallada gacanta barroosinka (J-nooca barroosinka bolt/ dallada gacanta ku dheggan)
Barroosinka gacanta ee dallada ayaa loo magacaabay sababtoo ah dhamaadka boolka waa jillaab J-qaabeeya (oo la mid ah gacanta dallada). Waxay ka kooban tahay ul dun leh iyo jillaab J-qaabeeya. Qaybta jillaabku waxay si buuxda ugu guntan tahay shubka si ay u bixiso iska caabin jiidid.
Fadlan fariin noogu dhaaf
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