Tsananguro:
Co 21, tsvimbo isina chinhu yakagadzirwa necobalt inoumba alloy ine kabhoni shoma, austenitic, ine hunhu hwakanaka hwekuomesa basa, simba rekupisa kwakanyanya uye inodzivirira kukuvadzwa. Madhipoziti eCo 21 anogara akagadzikana panguva yekupisa, zvichiita kuti ive sarudzo yakanaka yezvinhu zvinopisa. Inoshandiswa pamidziyo yemagetsi inodzorwa nehutsi uye mvura uye zvigaro. Inogona kushandiswa kune simbi dzese dzinosungirirwa, kusanganisira simbi dzisina ngura. Yakaenzana ne: Stellite 21, Polystel 21.
ZVINOSHANDISWA:
Mavharuvhu eUtsi. Zvidimbu Zvinopisa. Madhiri Ekugadzira. Mapulagi Ekuboora. Mavharuvhu eKemikari nePetrokemikari.
ZVINHU ZVECHIGADZIRWA:
Kuumbwa kwemakemikari
| Giredhi | Kuumbwa kwemakemikari (%) | ||||||||
| Co | Cr | W | Ni | C | Mn | Si | Mo | Fe | |
| Co 21 | Bhari | 27.3 | ≤0.5 | 2 | 0.25 | ≤0.5 | 1.5 | 5.5 | 1.5 |
ZVINHU ZVEMUNYIKA:
| Giredhi | Kuwanda kwevanhu | Nzvimbo Yokunyunguduka |
| Co 21 | 8.33g/cm3 | 1295~1435°C |
HUNHU HWAkajairika:
| Kuoma | Kuramba Kuora | Zvikamu zveDhipoziti | Kuramba Kuora | Machilitylineab |
| HRC 27~40 | Kugona | Yakawanda | Kugona | Zvishandiso zveCarbide |
Saizi Dzakajairika:
| Dhayamita | Dhayamita | Dhayamita |
| 1/8” (3.2mm) | 5/32” (4.0mm) | 3/16” (4.8mm) |
Ziva kuti saizi dzakasarudzika, kana zvinodiwa zvekurongedza zviripo pane zvese zvinokumbirwa.
ZVINHU ZVINONYANYA KUKOSHA:
AWS A5.21 /ASME BPVC IIC SFA 5.21 ERCoCr-E
AWS A5.13 ECOCR-A:
Cobalt 6
Maelectrode eECoCr-A ane chimiro chisina kusimba, chine network ye13% eutectic chromium carbides yakagoverwa mu cobalt-chromium-tungsten solid solution matrix. Mugumisiro wacho chinhu chine musanganiswa wekudzivirira kwese kwese kwekusakara kwakaderera, nekusimba kwakakosha kudzivirira kukanganiswa. Ma cobalt alloys akanakawo pakudzivirira kusakara kwesimbi kubva kusimbi kuenda kusimbi, kunyanya mumamiriro ezvinhu ane mutoro wakawanda anowanzo kurutsa. Hunhu hwakawanda hwe matrix hunodzivirirawo ngura, oxidation, uye kupisa kwakanyanya kunoramba kuchipisa kusvika pa1200°F (650°C). Ma alloys aya haachinjike mu allotropic transformation saka haarasikirwe nehunhu hwawo kana simbi yekutanga ikagadziriswa kupisa.
Colbalt #6 inokurudzirwa kana paine kusakara kunoenderana nekupisa kwakanyanya uye kana paine ngura, kana zvese zviri zviviri. Zvimwe zvinoshandiswa kazhinji mavharuvhu emotokari neemvura, maguidhi ekucheka chain, mahot punch, shear blades, uye screws dzekuburitsa zvinhu.
AWS A5.13 ECOCR-B:
Cobalt 12
Maelectrode netsvimbo dzeECoCr-B zvakafanana mukugadzirwa nemadhipoziti akagadzirwa achishandisa maelectrode netsvimbo dzeECoCr-A (Cobalt 6), kunze kwehuwandu hwakakwira zvishoma (inenge 16%) hwemacarbides. Chiumbwa ichi chine kuomarara kwakanyanya uye kuramba kukwesha uye kukwesha kubva pasimbi kuenda kusimbi zviri nani. Kudzivirira kukuvadzwa uye ngura zvinodzikiswa zvishoma. Madhipoziti anogona kugadzirwa nematurusi ecarbide.
Maelectrode eECoCr-B (Cobalt 12) anoshandiswa achichinjana nemaelectrode eECoCr-A (Cobalt 6). Sarudzo inoenderana nekushandiswa kwacho.
AWS A5.13 ECOCR-C:
Cobalt 1
ECoCr-C ine huwandu hwakakwira (inenge 19%) hwemakabhohaidhiretsi kupfuura zvakachengetwa zvinoshandiswa uchishandisa ECoCr-A (Cobalt 6) kana ECoCr-B (Cobalt 12). Kutaura zvazviri, musanganiswa wacho, wakaita sekuti macarbide ekutanga ane hypereutectic anowanikwa mu microstructure. Hunhu uhwu hunoita kuti alloy isanyanya kupfeka pamwe nekudzikira kwekugumburwa uye kuramba ngura. Kuomarara kwakanyanya kunorevawo kuti maitiro makuru anogona kuderedzwa nekutarisa zvakanyanya nzira dzekupisa dzisati dzatanga, kupisa kwepakati, uye kupisa mushure mekupedza kupisa.
Kunyange zvazvo cobalt-chromium deposits inonyorova zvishoma kana tembiricha yakakwira, inowanzoonekwa seisingakuvadzi. Maelectrode eECoCr-C anoshandiswa kuunganidza zvinhu zvakaita sema mixers, ma rotor kana chero kupi zvako kwakasangana nekukweshwa kwakanyanya uye kukanganiswa kushoma.
AWS A5.13 ECOCR-E:
Cobalt 21
Maelectrode eECoCr-E ane simba rakanaka uye ductility mukupisa kusvika 1600°F (871°C). Madhayidhi acho haapindi mukupisa, oxidizing, uye kuderedza mhepo. Kushandiswa kwekutanga kwemhando idzi dzealloys kwakawanikwa muzvikamu zvejet engine zvakaita se turbine blades nema vanes.
Chidimbu ichi chakasimba chakagadzirwa nesimbi ine kabhoni shoma muchimiro chayo. Saka, chidimbu ichi chakasimba uye chinoshanda zvakasimba. Zvidimbu izvi zvine simba rekudzivirira kukanganiswa nesimbi uye zvinodzivirira kukanganiswa netsandanyama.
Maelectrode eECoCr-E anoshandiswa kana kudzivirira kupisa kwakanyanya kukosha. Mashandisirwo akajairika; akafanana neaya emidziyo inoshandiswa uchishandisa maelectrode eECoCr-A (Cobalt 6); maguide roll, hot extrusion uye forging, hot shear blades, tong bits, valve trim.
