Incazelo:
I-Co 21, induku engenalutho esekelwe ku-cobalt eyakha i-alloy ephansi yekhabhoni, i-austenitic, enezakhiwo ezinhle kakhulu zokuqinisa ukusebenza, amandla okushisa aphezulu kanye nokumelana nokushayisana. Amadiphozithi e-Co 21 azinzile ngesikhathi sokujikeleza kokushisa, okwenza abe ukukhetha okuhle kwezinto ezishisayo. Isetshenziswa ezithweni nasezihlalweni zamavalvu okulawula umusi kanye noketshezi. Ingasetshenziswa kuzo zonke izinsimbi ezishibilikayo, kufaka phakathi izinsimbi ezingagqwali. Ilingana ne: Stellite 21, Polystel 21.
IZICELO:
Amavalvu Omusi. Izikele Ezishisayo. Ama-Forging Dies. Amaplagi Okubhoboza. Amavalvu Amakhemikhali Namakhemikhali.
IMINININGWANE YOMKHIQIZO:
Ukwakheka kwamakhemikhali
| Ibanga | Ukwakheka kwamakhemikhali (%) | ||||||||
| Co | Cr | W | Ni | C | Mn | Si | Mo | Fe | |
| I-Co 21 | I-Bal | 27.3 | ≤0.5 | 2 | 0.25 | ≤0.5 | 1.5 | 5.5 | 1.5 |
IZIMPAHLA EZIPHILAYO:
| Ibanga | Ubuningi | Indawo Yokuncibilika |
| I-Co 21 | 8.33g/cm3 | 1295~1435°C |
IZIMALI EZIJWAYELEKILE:
| Ubulukhuni | Ukumelana Nokuguguleka | Izendlalelo Zediphozithi | Ukumelana Nokugqwala | I-Machilitylineab |
| I-HRC 27~40 | Kuhle | Okuningi | Kuhle | Amathuluzi e-Carbide |
OSAYIZI ABAJWAYELEKILE:
| Ububanzi | Ububanzi | Ububanzi |
| 1/8” (3.2mm) | 5/32” (4.0mm) | 3/16” (4.8mm) |
Qaphela ukuthi osayizi abakhethekile, noma izidingo zokupakisha ziyatholakala kuzo zonke izicelo.
IZINHLOKO:
I-AWS A5.21 /ASME BPVC IIC SFA 5.21 ERCoCr-E
I-AWS A5.13 ECOCR-A:
I-Cobalt 6
Ama-electrode e-ECoCr-A abonakala ngesakhiwo esingenaso i-eutectic, esakhiwe yinethiwekhi yama-carbide e-eutectic chromium angaba ngu-13% asatshalaliswa ku-matrix yesisombululo esiqinile se-cobalt-chromium-tungsten. Umphumela uba yizinto ezihlanganisiwe zokumelana nokuguguleka okuphansi kokucindezeleka, kanye nokuqina okudingekayo ukumelana nezinga elithile lomthelela. Ama-alloy e-Cobalt nawo alungele ukumelana nokuguguleka kwensimbi kuya kwensimbi, ikakhulukazi ezimweni zomthwalo ophezulu ezivame ukugabha. Okuqukethwe kwe-alloy ephezulu kwe-matrix nakho kunikeza ukumelana okuhle kakhulu nokugqwala, i-oxidation, kanye nokugcinwa kwezinga lokushisa eliphakeme lokuqina okushisayo kuze kufike ku-1200°F (650°C). Lawa ma-alloy awakwazi ukuguqulwa yi-allotropic ngakho-ke awalahlekelwa yizakhiwo zawo uma insimbi eyisisekelo iphathwa ngokushisa kamuva.
I-Colbalt #6 inconywa ezimweni lapho ukuguguleka kuhambisana namazinga okushisa aphezulu nalapho kuhileleke ukugqwala, noma kokubili. Ezinye izinhlelo zokusebenza ezivamile ama-valve okugeleza kwezimoto nawoketshezi, ama-chain saw guides, ama-hot punch, ama-shear blades, kanye nezikulufo zokukhipha.
I-AWS A5.13 ECOCR-B:
I-Cobalt 12
Ama-electrode nezinduku ze-ECoCr-B zifana ngokwakheka namadiphozithi enziwe kusetshenziswa ama-electrode nezinduku ze-ECoCr-A (Cobalt 6), ngaphandle kwephesenti eliphakeme kancane (cishe u-16%) wama-carbide. I-alloy nayo inobulukhuni obuphezulu kancane kanye nokumelana okungcono kokuguguleka kanye nokuguguleka kwensimbi kuya kwensimbi. Ukumelana nokugqwala komthelela kanye nokugqwala kwehliswa kancane. Amadiphozithi angashintshwa ngomshini ngamathuluzi e-carbide.
Ama-electrode e-ECoCr-B (Cobalt 12) asetshenziswa ngokushintshana nama-electrode e-ECoCr-A (Cobalt 6). Ukukhetha kuzoncika ekusetshenzisweni okuthile.
I-AWS A5.13 ECOCR-C:
I-Cobalt 1
I-ECoCr-C inephesenti eliphezulu (cishe u-19%) lama-carbide kunezidiphozithi ezenziwe kusetshenziswa i-ECoCr-A (Cobalt 6) noma i-ECoCr-B (Cobalt 12). Eqinisweni, ukwakheka, kunjengokungathi ama-carbide ayinhloko e-hypereutectic atholakala esakhiweni esincane. Lesi sici sinikeza i-alloy ukumelana okuphezulu kokuguguleka okuhambisana nokunciphisa umthelela kanye nokumelana nokugqwala. Ukuqina okuphezulu kusho nokuthi ukuthambekela okukhulu kungancishiswa ngokubheka eduze amasu okushisa kwangaphambilini, izinga lokushisa eliphakathi, kanye nobuchwepheshe bokushisa ngemva kokushisa.
Nakuba ama-cobalt-chromium deposits athambisa kancane emazingeni okushisa aphezulu, ngokuvamile abhekwa njengavikelekile ekushiseni. Ama-electrode e-ECoCr-C asetshenziselwa ukwakha izinto ezifana nama-mixer, ama-rotor noma noma yikuphi lapho kuhlangatshezwa khona ukukhuhlana okunzima kanye nomthelela ophansi.
I-AWS A5.13 ECOCR-E:
I-Cobalt 21
Ama-electrode e-ECoCr-E anamandla amahle kakhulu kanye nokuguquguquka emazingeni okushisa afinyelela ku-1600°F (871°C). Ama-deposit amelana nokushaqeka kokushisa, ukuxilisa, kanye nokunciphisa imimoya. Ukusetshenziswa kwasekuqaleni kwalezi zinhlobo zama-alloy kwatholakala ezingxenyeni zenjini yejethi njengezinsika ze-turbine kanye nama-vanes.
Idiphozithi iyi-alloy eqinile eqondile ene-carbide phase ephansi kakhulu yesisindo esakhiweni esincane. Ngakho-ke, i-alloy iqinile kakhulu futhi izosebenza kanzima. Amadiphozithi anokumelana okuhle kakhulu nokuqhekeka futhi amelana kakhulu nokuguguleka kwe-cavitation.
Ama-electrode e-ECoCr-E asetshenziswa lapho ukumelana nokushaqeka kokushisa kubalulekile. Izicelo ezijwayelekile; ezifana nalezo zezindawo ezifakwayo kusetshenziswa ama-electrode e-ECoCr-A (Cobalt 6); imiqulu yokuqondisa, ama-hot extrusion nama-forging dies, ama-hot shear blades, ama-tong bits, i-valve trim.
