201 Chitsulo chosapanga dzimbiri
Zomwe zili mkuwa: J4>J1>J3>J2>J5.
Kaboni wa carbon: J5>J2>J3>J1>J4.
Makonzedwe olimba: J5, J2>J3>J1>J4.
Dongosolo la mitengo kuchokera pamwamba mpaka pansi ndi: J4>J1>J3>J2, J5.
J1 (Mid Copper): Zomwe zili mu carbon ndizokwera pang'ono kuposa J4 ndipo zamkuwa ndizochepa kuposa J4. Ntchito yake yokonza ndi yocheperapo J4. Ndizoyenera zojambula zozama komanso zojambula zakuya, monga bolodi yokongoletsera, zinthu zaukhondo, zozama, chubu lazinthu, etc.
J2, J5: Machubu okongoletsera: Machubu okongoletsera osavuta akadali abwino, chifukwa kuuma kwake kumakhala kwakukulu (onse pamwamba pa 96 °) ndipo kupukuta kumakhala kokongola kwambiri, koma chubu cha square kapena chubu chokhotakhota (90 °) chimakonda kuphulika.
Pankhani ya lathyathyathya mbale: chifukwa cha kuuma mkulu, bolodi pamwamba ndi wokongola, ndi pamwamba mankhwala monga
chisanu, kupukuta ndi plating ndizovomerezeka. Koma vuto lalikulu kwambiri ndi vuto lopindika, kupindika kwake ndikosavuta kusweka, ndipo polowera ndi kosavuta kuphulika. Kukula kosakwanira.
J3 (Low Copper): Yoyenera kukongoletsa machubu. Kukonzekera kosavuta kungathe kuchitidwa pa gulu lokongoletsera, koma sizingatheke ndi zovuta pang'ono. Pali ndemanga kuti mbale yometa idapindika, ndipo pali msoko wamkati pambuyo pakusweka (titaniyamu wakuda, mbale zamitundu, mbale za mchenga, zosweka, zopindidwa ndi msoko wamkati). Zinthu zozama zayesedwa kupindika, madigiri 90, koma sizingapitirire.
J4 (High Copper): Ndiwo mapeto apamwamba a mndandanda wa J. Ndikoyenera kwa mitundu yaying'ono yamakona azinthu zojambula mozama. Zambiri mwazinthu zomwe zimafuna kutola mchere wozama ndikuyesa kutsitsi za mchere zimasankha. Mwachitsanzo, masinki, ziwiya zakukhitchini, zinthu zosambira, mabotolo amadzi, vacuum flasks, mahinji a zitseko, maunyolo, ndi zina zambiri.
J1 J2 J3 J4 J6 Chemical Mapangidwe:
| Gulu | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | N |
| J1 | 0.12 max | 9.0-11.0 | 0.80 max | 0.050 max | 0.008 kukula | 13.50 - 15.50 | 0.60 max | 0.90 - 2.00 | 0.70 mphindi | 0.10 - 0.20 |
| J2 | 0.20 max | 9.0 min | 0.80 max | 0.060 kukula | 0.030 kukula | 13.0 min | 0.60 max | 0.80 min | 0.50 max | 0.20 max |
| J3 | 0.15 max | 8.5-11.0 | 0.80 max | 0.050 max | 0.008 kukula | 13.50 - 15.00 | 0.60 max | 0.90 - 2.00 | 0.50 min | 0.10 - 0.20 |
| J4 | 0.10 max | 9.0-11.0 | 0.80 max | 0.050 max | 0.008 kukula | 14.0 - 16.0 | 0.60 max | 0.90 - 2.00 | 1.40 min | 0.10 - 0.20 |
| J6 | 0.15 max | 6.5 min | 0.80 max | 0.060 kukula | 0.030 kukula | 13.50 min | 0.60 max | 3.50 min | 0.70 mphindi | 0.10 min |
Nthawi yotumiza: Jul-07-2020