SAE8620H Steel Round Bar / GB 20CrNiMo Birta birta ah
Astaamaha
8620 birta daawaha waxay ka kooban tahay (sida ay u kala horreeyaan boqolkiiba) birta, kaarboon, silicon, molybdenum, manganese, nikkel, chromium, baaruud iyo fosfooraska.Cunsuradan ka kooban waa inay ahaadaan kuwo ku jira boqolkiiba miisaan gaar ah si ay u abuuraan 8620 daawaha.Waxaa lagu talinayaa in birta lagu adkeeyo carburization oo ay raacdo saliid, oo ka soo horjeeda biyaha, deminta.Waxay leedahay cufnaanta celceliska dhexdhexaadka ah ee birta birta ah ee .28 lb. halkii inch ee labajibbaaran, inkasta oo ay xoogga u adkaysanayso - qaddarka miisaanka ay qaadi karto ka hor inta aan jebin - waa mid hooseeya, 536.4 Mpa.Celceliska xoogga xajinta ee daawaha birta waa 758 ilaa 1882 Mpa.
Marka 8620 alloy si sax ah loo carburized - kululeeyo heerkul go'an ka dibna la soo bandhigo walax ka kooban kaarboon, habka kaas oo ku daraya lakabka dheeraadka ah ee kaarboon dibadda birta, taas oo ka dhigaysa mid xooggan - waxaa loo isticmaalaa in lagu sameeyo mishiinka noocaas ah. qaybo ka mid ah sida gears, crankshafts, iyo giraanta qalabka.Carburized 8620 alloy waa mid xoogan oo waara, taas oo ah sababta loo doorbido qaybahan.
HEERKA: ASTM A29/A29M-2012
Halabuurka kiimikada
| Kaarboon C | 0.17-0.23 |
| Silikoon Si | 0.15-0.35 |
| Manganese Mn | 0.65 ~ 0.95 |
| Sulfur S | ≤ 0.025 |
| Fosfooraska P | ≤ 0.025 |
| Chromium Cr | 0.35 ~ 0.65 |
| Nikkel | 0.35-0.65 |
| Copper Cu | ≤ 0.025 |
| Molybdenum Mo | 0.15-0.25 |
Guryaha makaanikada
| xoogga xajinta σ b (MPa) | ≥980 (100) |
| xoog dhalid σ s (MPa) | ≥785(80) |
| dhererka δ 5 (%) | ≥9 |
| Dhimista aagga ψ (%) | ≥40 |
| Saamaynta tamarta Akv (J) | ≥ 47 |
| Qiimaha adkaanta saamaynta α kv (J/cm2) | ≥59 (6) |
| Adag | ≤ 197HB |
| Habka | EAF+LF+VOD+Daawaynta Kulaylka+La Been-abuuray(ikhtiyaar) |
| GARADKA | |
| Wareeg | 10mm ilaa 360mm |
| DHULKA OO DHAMAYSATAY | Madow, Diiray (K12), Qabow barbaro, La rogmaday & La sifayn (H10, H11), Dhulka saxda ah (H9, H8) |
Daawaynta kulaylka
| Shaqo kulul | 850-1150oC |
| Kiis adag | Laba-jibbaaran hardeningoC |
| Kaarburis | 900-950oC |
| Jilicsanaan | 650-700oC |
| Adkeynta dusha sare | 800-930oC |
| xanaaqsan | 150-210oC |
| Baaritaanka Ultrasonic | Sida ku cad SEP 1921-84 |
Shahaadada tayada: waxaa lagu soo saaray Ingiriis, marka lagu daro shuruudaha caadiga ah, habka wax soo saarka, hantida farsamada (xoogga wax soo saarka, xoogga xajinta, dhererka iyo qallafsanaanta), saamiga been-abuurka ah, natiijada baaritaanka UT, cabbirka hadhuudhka, hababka daaweynta kulaylka iyo muunadda waa lagu muujiyay Shahaadada Tayada.
Calaamadaynta: Kulaylka Lambar
Heerarka siman
| ASTM&AISI&SAE | JIS | EN DIN | EN BS | EN NF | ISO | GB |
| 86208620H | SNCM220 | 1.6523 | 1.6523 | 1.6523 | --- | 20CrNiMo |
Codsiga Baararka birta ee SAE8620H
Caadi ahaan loo isticmaalo wax soo saarka qaybo muhiim ah oo leh xoog sare iyo caag wanaagsan, iyo soo saarista qaybo muhiim ah oo leh shuruudo shaqo oo gaar ah ka dib daaweynta nitriding:
Arbors shaqo culus leh, baadiyaha, Cam Followers, xidho biinanka, biraha, biinanka, gears iyo shafts, Clutch Dogs, Compressor Bolts, Soosaarayaasha, Shafts fan, Gears culayska culus, Shaftyada bamka, Sprockets, Tappets, xidho biinanka, hagaha silig iwm. Ama waxaa loo isticmaali karaa codsiyada xamaasadda sare leh ee aan la kaarbuurnayn laakiin la adkeeyey oo xanaaqsan.Waxaa si aad ah u isticmaala dhammaan qaybaha warshadaha ee qaybaha iyo ulaha u baahan caabbinta xirashada dusha sare, xoogga sare ee asaasiga ah iyo sifooyinka saameynta.
Xidhmada
1.By xidhmooyinka, xidhmo kasta oo miisaankeedu ka yar yahay 3 tan, ee dibadda yardhexroor bar wareeg ah, xidhmo kasta oo leh 4 - 8 strips bir ah.
2.20 cagood weel ka kooban cabbir, dherer ka hooseeya 6000mm
3.40 cagood weel ka kooban cabbir, dherer ka hooseeya 12000mm
4.By markabka bulk, khidmadda xamuulku waa ku yar yahay xamuulka badan, iyo weyncabbirrada culculus laguma rari karo weelasha waxaa lagu rari karaa xamuul badan
Hubinta tayada
1. Ku adkee sida Shuruudaha
2. Tusaale: Muunad ayaa diyaar ah.
3. Tijaabooyinka: Tijaabada buufinta milixdu / Tijaabada xajinta / Eddy hadda / tijaabinta ka kooban kiimikaad sida waafaqsan codsiga macaamiisha
4. Shahaadada: IATF16949, ISO9001, SGS iwm.
5. EN 10204 3.1 Shahaadada
