Baarka Birta Aan Da'da Ahayn ee Adkaynta Da'da
Sharaxaad Gaaban:
Adkaynta da'da, oo sidoo kale loo yaqaan adkaynta roobka, waa hab lagu daweeyo kulaylka kaas oo hagaajiya xoogga iyo adkaanta biraha qaarkood, oo ay ku jiraan birta aan daxalka lahayn. Hadafka adkaynta da'da waa in la kiciyo roobabka walxaha yaryar ee ku jira shaxda birta aan daxalka lahayn, taas oo xoojisa agabka.
Birta aan lahayn birta adag ee da'da sii adkeynaysa:
Foornooyinka waa qaybo bir ah oo loo sameeyay habka sameynta, halkaas oo walxaha la kululeeyo ka dibna la dubo ama lagu riixo qaabka la rabo. Foornooyinka birta ah ee aan daxalka lahayn waxaa badanaa loo doortaa iska caabbinta daxalka, xoogga, iyo cimri dhererka, taasoo ka dhigaysa kuwo ku habboon codsiyada kala duwan, oo ay ku jiraan hawada sare, saliidda iyo gaaska, iyo waxyaabo kaloo badan. Foornooyinka qaabka baarka ah waa nooc gaar ah oo bir ah oo la been abuuray oo caadiyan leh qaab dheer oo toosan, oo la mid ah baar ama ul. Foornooyinka waxaa badanaa loo isticmaalaa codsiyada halkaas oo loo baahan yahay dherer joogto ah oo toosan oo walax ah, sida dhismaha qaab-dhismeedka ama sida walxo cayriin ah oo loogu talagalay farsamaynta dheeraadka ah.
Tilmaamaha Baarka Forgings-ka ee Adkaynta Da'da:
| Fasal | 630,631,632,634,635 |
| Heerka Caadiga ah | ASTM A705 |
| Dhexroorka | 100 - 500mm |
| Teknolojiyad | La been abuuray, kulul la duubay |
| Dhererka | 1 ilaa 6 Mitir |
| Daaweynta Kulaylka | Jilicsan oo la qaboojiyey, Xal la qaboojiyey, la qaboojiyey oo la hagaajiyey |
Halabuurka Kiimikada ee Baarka La Been Abuuray:
| Fasal | 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 | - |
Sifooyinka farsamada ee loo yaqaan 'Forged Bar':
| Nooca | Xaalad | Xoogga Jilicsanaanta ksi[MPa] | Xoog Wax-soo-saar ksi[MPa] | Kordhinta % | Adkaanta Dhagaxa 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 Adkaynta Roobabka ee Birta aan lahayn?
Birta aan miridhku adkaynayn ee roobka, oo badanaa loo yaqaan "birta aan miridhku lahayn ee PH," waa nooc ka mid ah birta aan miridhku lahayn oo marta hab loo yaqaan adkaynta roobka ama adkaanta da'da. Habkani wuxuu kor u qaadaa sifooyinka farsamada ee walaxda, gaar ahaan xooggeeda iyo adkaanteeda. Birta aan miridhku adkeynayn ee roobka ugu badan waa17-4 PH(ASTM A705 Fasalka 630), laakiin darajooyin kale, sida 15-5 PH iyo 13-8 PH, ayaa sidoo kale ku jira qaybtan. Biraha aan miridhku adkayn ee roobka waxaa badanaa lagu dahaadhaa walxo ay ka mid yihiin chromium, nickel, copper, iyo mararka qaarkood aluminium. Ku darista walxahan dahaadhka ah waxay kor u qaaddaa sameynta daadashada inta lagu jiro habka daaweynta kulaylka.
Sidee loo adkeeyaa roobka birta aan miridhku lahayn?
Birta aan miridhku adkaynayn ee da'da waxay ku lug leedahay geeddi-socod saddex-tallaabo ah. Marka hore, walaxda waxaa la mariyaa daaweyn xal heerkul sare leh, halkaas oo atamka milma uu milmo, taasoo sameysa xal hal-waji ah. Tani waxay horseedaa sameynta nukliyo badan oo yar yar ama "aagag" oo ku yaal birta. Dabadeed, qaboojin degdeg ah ayaa ka dhacda xadka milmida, taasoo abuurta xal adag oo aad u buuxan oo xaalad metastasis ah. Tallaabada ugu dambeysa, xalka subagga ku badan ayaa lagu kululeeyaa heerkul dhexdhexaad ah, taasoo keenta roobab. Markaa walaxda waxaa lagu hayaa xaaladdan ilaa ay ka adkaato. Adkeynta da'da ee guuleysta waxay u baahan tahay in halabuurka daawadu uu ku jiro xadka milmida, taasoo hubinaysa waxtarka habka.
Waa maxay noocyada birta adag ee roobka?
Biraha adag ee roobka waxay ku yimaadaan noocyo kala duwan, mid walbana wuxuu u habaysan yahay inuu buuxiyo shuruudaha waxqabadka gaarka ah iyo 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 630 (17-4 PHMod), iyo Carpenter Custom 455. Birahan waxay bixiyaan isku-darka xoog sare, iska caabinta daxalka, iyo adkaanta, taasoo ka dhigaysa kuwo ku habboon warshado kala duwan sida hawo-mareenka, baabuurta, caafimaadka, iyo farsamaynta kiimikada. Doorashada birta adkaynaysa roobka waxay ku xiran tahay arrimo ay ka mid yihiin deegaanka codsiga, waxqabadka agabka, iyo qeexitaannada wax soo saarka.
Baakad:
1. Baakaduhu aad bay muhiim u yihiin gaar ahaan marka ay jiraan shixnadaha caalamiga ah oo shixnadaha ay maraan marinno kala duwan si ay u gaaraan meesha ugu dambeysa ee loo socdo, sidaa darteed waxaan si gaar ah uga walaacsannahay baakadaha.
2. Saky Steel waxay alaabtayada u xidhaa siyaabo kala duwan iyadoo lagu salaynayo alaabta. Waxaanu alaabtayada u xidhaa siyaabo kala duwan, sida,
