440 kubadaha birta ah waxay isku daraan adkaanta cajiibka ah iyo caabiga weyn ee daxalka ay sababaan biyaha, uumiga, hawada iyo sidoo kale shidaalka, saliida iyo aalkolada.Heer sare oo dhammaystiran oo dusha sare ah iyo dulqaadka cabbirka saxda ah ayaa ka dhigaya nooca birta aan la wadin inay yihiin kuwa ugu fiican isticmaalka birta aan-ka-tooska ah ee saxda ah ee saxda ah ee birta, alwaaxyada, qalimaanta kubbadda.
440 kubbadood oo bir ah | |
Dhexroorka | 2.0mm - 55.0mm |
Darajo | G10-G500 |
Codsiga | xadhkaha kubbadda, alwaaxyada sifaynta saliidda, qalimaan barta kubbadda |
440 kubbadood oo bir ah | |||
Sida ku cad DIN 5401: 2002-08 | Sida laga soo xigtay ANSI/ABMA Std.10A-2001 | ||
dhaaftay | ilaa |
| |
dhammaan | dhammaan | 55/60 HRC | 55/62 HRC |
440 kubbadood oo bir ah | |
AISI/ASTM(USA) | 440B |
VDEh (GER) | 1.4112 |
JIS (JAP) | SUS440B |
BS (UK) | - |
NF (France) | - |
ГОСТ(Ruushka) | - |
GB (Shiinaha) | - |
440 kubbadood oo bir ah | |
C | 0.85% - 0.95% |
Si | ≤1.00% |
Mn | ≤1.00% |
P | ≤0.04% |
S | ≤0.015% |
Cr | 17.00% - 19.00% |
Mo | 0.90% - 1.30% |
V | 0.07% - 0.12% |
• Waxaan ku hawlanayn wax soo saarka kubbadda birta in ka badan 26 sano;
Waxaan bixinaa noocyo kala duwan oo cabbirro ah oo u dhexeeya 3.175mm ilaa 38.1mm.Cabbirrada iyo cabbirrada aan caadiga ahayn waxaa lagu soo saari karaa codsi gaar ah (sida 5.1mm, 5.15mm, 5.2mm, 5.3mm 5.4mm for track the seat; 14.0mm for cam shaft and CV joint, iwm.);
● Waxa aanu haysanaa kayd balaadhan.Inta badan cabbirada caadiga ah (3.175mm ~ 38.1mm) iyo cabbirada (-8 ~ + 8) ayaa diyaar ah, kuwaas oo isla markiiba la keeni karo;
● Dufcad kasta oo kubadaha ah waxaa eegaya mashiino casri ah: tijaabiyaha wareega, tijaabiyaha qallafsanaanta, mikroskoob falanqaynta biraha, tijaabiyaha adkaanta (HRC iyo HV) si loo dammaanad qaado tayada.
S: Sideen ku dooran karaa sumadda birta ah ee ku habboon (304(L)/316(L)/420(C)/440(C))?Waa maxay faraqa ugu weyn ee u dhexeeya 300 iyo 400 ee kubbadaha birta ah ee taxanaha ah?
J: Si aad u dooratid nooca saxda ah ee birta ee kubbadaha birta ah, waa inaan si fiican u ogaanaa sifooyinka calaamad kasta iyo codsiga kubbadaha.Kubadaha birta ah ee ugu caansan ee la isticmaalo waxaa loo qaybin karaa si fudud laba kooxood: 300 taxane iyo 400 taxane ah.
300 taxane "austenitic" kubadaha aan birta lahayn waxay ka kooban yihiin chromium iyo nikkel dheeraad ah waxayna aragti ahaan yihiin kuwo aan magnet ahayn (dhab ahaantii aad bay u hooseeyaan.Sida caadiga ah waxaa la soo saaraa iyada oo aan habka daaweynta kulaylka.Waxay leeyihiin iska caabin daxalka ka wanaagsan 400 taxane ah (xaqiiqda, iska caabin daxalka ugu sareeya ee kooxda ahama. In kasta oo 300 kubadaha taxane ah oo dhan waa wax iska caabin ah, si kastaba ha ahaatee 316 iyo 304 kubadaha muujiyaan iska caabin kala duwan in ay walax qaar ka mid ah. Faahfaahin dheeraad ah, fadlan tixraac boggaga. ee kubbadaha birta ah ee kala duwan).Way jilicsan yihiin, sidaas awgeed waxaa sidoo kale lagu dabaqi karaa isticmaalka.400 ee kubbadaha birta ah ee taxanaha ah waxaa ku jira kaarboon badan, taas oo ka dhigaysa birlab iyo adkeysi badan.Si fudud ayaa loola dhaqmi karaa sida kubbadaha birta chrome ama kubbadaha birta kaarboon si loo kordhiyo adkaanta.Kubadaha birta ah ee 400 oo taxane ah ayaa caadi ahaan loo isticmaalaa codsiyada u baahan biyo-iska-caabbinta, xoogga, adkaanta iyo xidhashada caabbinta.
S: Sidee tahay hubinta tayadaadu?
J: Dhammaan kubbadaha la soo saaray 100% waxaa lagu kala soocaa baarka kala-soocidda waxaana lagu hubiyaa qalabka korantada ee cilladaha.Kahor inta aan la xirxirin muunadaha baakadaha ka soo baxa goobta ayaa loo diri doonaa kormeerka ugu dambeeya si loo hubiyo qallafsanaanta, wareegsanaanta, qallafsanaanta, kala duwanaanshaha, rarka burburinta iyo gariirka si waafaqsan heerka.Haddii dhammaan shuruudaha la buuxiyo, warbixinta kormeerka ayaa loo samayn doonaa macaamilka.Shaybaadhkayaga casriga ah waxaa lagu qalabeeyaa mashiinno sax ah oo sarreeya iyo qalab: Tijaabada qallafsanaanta Rockwell, Tijaabaha adkaanta Vickers, mashiinka culeyska, mitirka qallafsanaanta, mitirka wareega, barbardhiga dhexroorka, mikroskoob metallographic, qalabka cabbira gariir, iwm.