SAE8620H Karfe Round Bar / GB 20CrNiMo Karfe
Siffofin
8620 gami karfe yana kunshe da (a cikin tsarin saukowa na kashi) baƙin ƙarfe, carbon, silicon, molybdenum, manganese, nickel, chromium, sulfur da phosphorus.Waɗannan abubuwan sinadarai dole ne su kasance cikin wasu nau'ikan nauyi don ƙirƙirar gami na 8620.Ana ba da shawarar cewa karfe ya taurare ta hanyar carburization ya biyo bayan mai, sabanin ruwa, quench.Yana da matsakaicin matsakaicin matsakaicin ƙarancin ƙarfe a .28 lb. a kowace murabba'in inch, kodayake ƙarfin ƙarfinsa - adadin nauyin da zai iya ɗauka kafin karya - yana da ƙasa, a 536.4 Mpa.Matsakaicin ƙarfin juriya na gami da ƙarfe shine 758 zuwa 1882 Mpa.
Lokacin da 8620 gami da aka yi carburized da kyau - mai zafi zuwa saita zafin jiki sa'an nan kuma fallasa zuwa ga wani wakili dauke da carbon, wani tsari wanda ya kara da wani karin Layer na carbon zuwa waje na karfe, shi ya sa ya fi karfi - ana amfani da shi don yin irin wannan inji. sassa kamar gears, crankshafts, da zoben kaya.Carburized 8620 gami yana da ƙarfi kuma mai dorewa, wanda shine dalilin da ya sa aka fi son waɗannan sassa.
MA'AURATA: ASTM A29/A29M-2012
Abubuwan sinadaran
| Carbon C | 0.17 ~ 0.23 |
| Silicon Sa | 0.15 ~ 0.35 |
| Manganese Mn | 0.65 ~ 0.95 |
| Sulfur S | ≤ 0.025 |
| Phosphorus P | ≤ 0.025 |
| Chromium Cr | 0.35 ~ 0.65 |
| Nickel | 0.35-0.65 |
| Copper Ku | ≤ 0.025 |
| Molybdenum Mo | 0.15-0.25 |
Kayan aikin injiniya
| Ƙarfin ƙarfi σ b (MPa) | ≥980(100) |
| Ƙarfin yawan amfanin ƙasa σ s (MPa) | ≥785(80) |
| tsawo δ 5 (%) | ≥9 |
| Rage yanki ψ (%) | ≥40 |
| Tasirin makamashi Akv (J) | ≥ 47 |
| Ƙimar taurin tasiri α kv (J/cm2) | ≥59(6) |
| Tauri | ≤ 197HB |
| Tsari | EAF+LF+VOD+Jin Ƙirƙirar Zafi (na zaɓi) |
| GIRMAN GIRMA | |
| Zagaye | 10mm zuwa 360mm |
| SURFACI YA GAMA | Baƙi, Barewa (K12), Sanyi Janye, Juya & goge (H10, H11), Ƙaƙƙarfan Ƙasa (H9, H8) |
Maganin Zafi
| Aiki mai zafi | 850-1150oC |
| Harka taurin | Sau biyu hardeningoC |
| Carburising | 900-950oC |
| Mai laushi mai laushi | 650-700oC |
| Tauraruwar saman | 800-930oC |
| Haushi | 150-210oC |
| Gwajin Ultrasonic | A cewar SEP 1921-84 |
Certificate of Quality: bayar a cikin Turanci, ban da al'ada sharuddan, samar tsari, da inji dukiya (ƙarfin samar da, tensile ƙarfi, elongation da taurin), ƙirƙira rabo, UT gwajin sakamakon, hatsi size, zafi magani hanyoyin da samfurin ne wanda aka nuna akan Takaddun Takaddun Shaida.
Alamar alama: Heat No. za a yi sanyi hatimi da Karfe sa, diamita (mm), tsawon (mm), da manufacturer LOGO da nauyi (kg) fentin.
Daidaitaccen Matsayi
| ASTM&AISI&SAE | JIS | EN DIN | EN BS | Farashin ENN | ISO | GB |
| 86208620H | Saukewa: SNCM220 | 1.6523 | 1.6523 | 1.6523 | ---- | 20CrNiMo |
SAE8620H Karfe Bar Aikace-aikacen
Yawanci ana amfani dashi don kera mahimman sassa tare da babban ƙarfi da filastik mai kyau, kuma don kera mahimman sassa tare da buƙatun aiki na musamman bayan jiyya na nitriding:
Arbors masu nauyi, bushings, Mabiyan Cam, sa fil, bearings, sprockets, gears da shafts, Clutch Dogs, Compressor Bolts, Extractors, Fan Shafts, Kayan aiki mai nauyi, Shafukan famfo, Sprockets, Tappets, Wear fil, Jagoran waya da sauransu. Ko kuma ana iya amfani da shi don aikace-aikacen ƙwanƙwasa mai ƙarfi ba tare da karbuwa ba amma ta taurare da zafin rai.Ana amfani da shi da yawa ta duk sassan masana'antu don abubuwan da aka gyara da ramukan da ke buƙatar juriya mai tsayi, babban ƙarfi mai ƙarfi da kaddarorin tasiri.
Kunshin
1.By bundles, kowane dam nauyi a karkashin 3 ton, ga kananan msanduna zagaye diamita, kowane dam tare da 4 - 8 karfe tube.
Ganga mai ƙafa 2.20 ya ƙunshi girma, tsawon ƙasa da 6000mm
Gangar ƙafar ƙafa 3.40 ta ƙunshi girma, tsayin da ke ƙarƙashin 12000mm
4.By jirgin ruwa mai girma, cajin kaya yana da ƙasa da kaya mai yawa, kuma babbamasu girma dabam ba za a iya loda su cikin kwantena ba za a iya jigilar kaya ta babban kaya
Tabbatar da inganci
1. Tsanani bisa ga buƙatun
2. Samfura: Samfura yana samuwa.
3. Gwaje-gwaje: Gwajin gwajin gishiri / Gwajin Tensile / Eddy halin yanzu / Gwajin abun da ke ciki bisa ga buƙatar abokan ciniki
4. Certificate: IATF16949, ISO9001, SGS da dai sauransu.
5. EN 10204 3.1 Takaddun shaida
