Da'da Adkeynaysa Bar Forgings Steel Aayaadka
Sharaxaad Gaaban:
Da'da-adkaynta, oo sidoo kale loo yaqaano adkeynta roobka, waa habka daaweynta kulaylka oo hagaajinaysa xoogga iyo adkaanta aluminiumyada qaarkood, oo ay ku jiraan birta aan lahayn. Hadafka da'da-adkeynta waa in la kiciyo roobabka qaybaha yaryar ee gudaha matrixka birta ah, taas oo xoojinaysa alaabta.
Ku Adkeysiga Da'da Aan-la-aanta Ahayn Baarka:
Forgings waa qaybo bir ah oo loo qaabeeyey habka foornaynta, halkaas oo walxaha la kululeeyo ka dibna lagu dubto ama lagu cadaadiyo qaabka la rabo. joogto ah, dhererka tooska ah ee alaabta ayaa loo baahan yahay, sida dhismaha dhismayaasha ama sida alaabta ceeriin ee farsamaynta dheeraadka ah.
Tilmaamaha Bar Forgings ee Da' Adag:
| Darajo | 630,631,632,634,635 |
| Heerka | ASTM A705 |
| Dhexroorka | 100 - 500mm |
| Farsamada | Been abuur ah, kulul oo duuban |
| Dhererka | 1 ilaa 6 Mitir |
| Daawaynta kulaylka | Jilicsan oo la dajiyay, Xalka waa la tirtiray, la demiyay oo la cadhooday |
Halabuurka Kiimikada ee Baar been abuur ah:
| Darajo | C | Mn | P | S | Si | Cr | Ni | Mo | Al | Ti | Co |
| 630 | 0.07 | 1.0 | 0.040 | 0.030 | 1.0 | 15-17.5 | 3-5 | - | - | - | 3.0-5.0 |
| 631 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 16-18 | 6.5-7.75 | - | 0.75-1.5 | - | - |
| 632 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 14-16 | 6.5-7.75 | 2.0-3.0 | 0.75-1.5 | - | - |
| 634 | 0.10-0.15 | 0.50-1.25 | 0.040 | 0.030 | 0.5 | 15-16 | 4-5 | 2.5-3.25 | - | - | - |
| 635 | 0.08 | 1.0 | 0.040 | 0.030 | 1.0 | 16-17.5 | 6-7.5 | - | 0.40 | 0.40-1.20 | - |
Guryaha makaanikada ee Baar been abuur ah:
| Nooca | Xaalad | Xoogga Jilitaanka ksi[MPa] | Xoog-soo-saarka ksi[MPa] | Kordhinta % | Hardness Rock-well C |
| 630 | H900 | 190[1310] | 170[1170] | 10 | 40 |
| H925 | 170[1170] | 155[1070] | 10 | 38 | |
| H1025 | 155[1070] | 145[1000] | 12 | 35 | |
| H1075 | 145[1000] | 125[860] | 13 | 32 | |
| H1100 | 140[965] | 115[795] | 14 | 31 | |
| H1150 | 135[930] | 105[725] | 16 | 28 | |
| H1150M | 115[795] | 75[520] | 18 | 24 | |
| 631 | RH950 | 185[1280] | 150[1030] | 6 | 41 |
| TH1050 | 170[1170] | 140[965] | 6 | 38 | |
| 632 | RH950 | 200[1380] | 175[1210] | 7 | - |
| TH1050 | 180[1240] | 160[1100] | 8 | - | |
| 634 | H1000 | 170[1170] | 155[1070] | 12 | 37 |
| 635 | H950 | 190[1310] | 170[1170] | 8 | 39 |
| H1000 | 180[1240] | 160[1100] | 8 | 37 | |
| H1050 | 170[1170] | 150[1035] | 10 | 35 |
Waa maxay Roobab Adag oo Aan-Aabaha lahayn?
Adkeynta birta da'da ee roobabka, oo inta badan loo yaqaan "PH steel steel," waa nooc ka mid ah birta aan la taaban karin ee mara habka loo yaqaan adkeynta roobabka ama adkeynta da'da. Habkani wuxuu kor u qaadayaa sifooyinka farsamada ee maaddada, gaar ahaan xooggeeda iyo qallafsanaanta. Roobka ugu badan ee adkeysiinaya birta aan lahayn waa17-4 PH(ASTM A705 Fasalka 630), laakiin darajooyin kale, sida 15-5 PH iyo 13-8 PH, sidoo kale ku dhacaan qaybtan. Roobka adkaanta birta ahama sida caadiga ah alloyed leh xubno sida chromium, nikkel, copper, iyo mararka qaarkood aluminium. Intaa waxaa dheer ee walxaha Alloying kuwaas oo kor u formation of precipitates inta lagu jiro habka daaweynta.
Sidee loo adkeeyaa roobka birta-la'aanta ah?
Adkeynta da'da birta aan lahayn waxay ku lug leedahay hannaan saddex tallaabo ah. Markii hore, maaddadu waxay maraysaa daawaynta xal heerkul sare ah, halkaas oo atomyada solute-ka ay milmaan, samaynta xal hal-waji ah. Tani waxay keenaysaa samaynta nuklei yar yar oo badan ama "aagga" birta. Ka dib, qaboojinta degdega ah waxay ka dhacdaa meel ka baxsan xadka milanka, abuurista xal adag oo sarreeya oo ku jira xaalad metastable. Talaabada ugu dambeysa, xalka sare waxaa lagu kululeeyaa heerkul dhexdhexaad ah, taasoo kicinaysa roobab. Walaxda ayaa markaa lagu hayaa xaaladan ilaa ay ka adkaanayso. Adkeynta da'da guusha leh waxay u baahan tahay isku-dhafka daawaha si uu u ahaado xadka xaddidan, hubinta waxtarka habka.
Waa maxay noocyada birta adag ee roobabka?
Biraha adkeeya roobabku waxay u kala baxaan noocyo kala duwan, mid walbana waxaa loogu talagalay inuu buuxiyo waxqabad gaar ah iyo shuruudaha codsiga. Noocyada caadiga ah waxaa ka mid ah 17-4 PH, 15-5 PH, 13-8 PH, 17-7 PH, A-286, Custom 450, Custom 63017-4 PHMod), iyo Carpenter Custom 455. Birahani waxay bixiyaan isku-dar ah xoog sare, iska caabin daxalka, iyo adkaanta, taasoo ka dhigaysa inay ku habboon yihiin warshadaha kala duwan sida hawada, baabuurta, caafimaadka, iyo kiimikada. Doorashada birta adkeynta roobka waxay ku xiran tahay arrimo ay ka mid yihiin deegaanka codsiga, waxqabadka alaabta, iyo qeexida wax soo saarka.
Baakad:
1. Baakayntu aad bay muhiim u tahay gaar ahaan marka ay dhacdo shixnado caalami ah oo shixnaduhu ay soo maraan waddooyin kala duwan si ay u gaadhaan meesha ugu dambaysa, sidaas awgeed waxaanu walaac gaar ah saarnay baakadaha.
2. Saky Steel's waxay alaabtayada u xirtaa siyaabo badan oo ku salaysan alaabta. Waxaan u badeshaa alaabtayada siyaabo badan, sida,
