1. Kubbad bir ah oo la tuurayo: bir chromium hooseeya, bir chromium dhexdhexaad ah, bir chromium sare leh iyo bir chromium aad u sarreeya (Cr12%-28%).
2. Kubbad bir ah oo la farsameeyo: bir daawaha kaarboon yar, bir daawaha kaarboon dhexdhexaad ah, bir manganese sare leh iyo kubad bir ah oo ...
Hadda nooca kubadda birta ah ee ugu fiican? Hadda aan falanqaynno:
1. Tusmada tayada birta chromium sare: Heerka chromium waa in ka badan 10%, kaarboonka ku jira 1.80%-3.20% waxaa loo yaqaan birta chromium sare, shuruudaha heerka qaranka ee adkaanta kubbadda chromium sare (HRC) waa inay ahaadaan ≥ 58, AK ≥ 3.0J/cm qiimaha saameynta
2. Tusmada tayada birta chromium oo hooseysa: oo leh 0.5% ~ 2.5%, kaarboonka ku jira 1.80%-3.20% waxaa loogu yeeraa birta chromium oo hooseysa, shuruudaha heerka qaran ee adagaanta birta chromium ee hooseeya (HRC) waa inay ahaadaan ≥ 45, AK ≥ 1.5J/cm qiimaha saameynta 2, Kubbadda Rolling si loo hubiyo tayada kubbadda birta chromium ee hooseeya heerkulka sare ama daaweynta gabowga gariirka (si loo baabi'iyo walbahaarka tuurista, sida ujeeddada) ee dusha sare ee kubbadda birta waa casaan madow si loo muujiyo in badeecaddu ay ahayd daaweynta heerkulka sare, sida dusha sare ee kubbadda birta waa midabka birta wuxuu tilmaamayaa badeecada iyada oo aan la kululayn.
3. Tusmada tayada kubbadda birta ee la been abuuray: oo leh 0.1% ~ 0.5% (kubbad bir ah oo la been abuuray oo aan lahayn chromium), kaarboonka ka hooseeya 1% iyo kubbadda birta oo leh wax soo saar heer sare ah oo la been abuuray, xoogaa adag oo dusha sare ah oo kubbadda birta ah (HRC) ≥ 56 (inkastoo ay gaari karto wax ka badan lakabka bakhtiinta oo keliya 15 mm ama wax la mid ah), kubbadda birta sababtoo ah qalabka kubbadda birta ee la been abuuray, awoodda adkaanta ee xudunta ayaa guud ahaan ah 30 darajo oo keliya. Xaaladaha caadiga ah, kubbadda birta ee la been abuuray iyadoo la adeegsanayo daaweynta bakhtiinta biyaha, heerka jabitaanka kubbadda birta ee la been abuuray ayaa sarreeya.
4. Isbarbardhigga iska caabbinta xirashada: birta chromium-ka aadka u sareysa > birta chromium-ka sare > kubbadda birta chromium-ka dhexdhexaadka ah > birta chromium-ka hooseeya > kubbadda birta been abuurka ah.
Qaybaha kubbadda birta ah ee u adkaysta xirashada:
Kuleylka Chromium waa 1% – 3% iyo adkeysiga HRC ≥ 45. Heerkan kubadda birta ah ee u adkeysan karta xirashada waxaa loo yaqaan kubbadda birta ee chromium-ka hooseeya. Kuleylaha chromium-ka hooseeya waxay qaataan foornada korantada ee soo noqnoqda ee dhexdhexaadka ah, qaabka birta ama qaabka shubista ciidda. Waxqabadkeedu wuxuu ku habboon yahay qaar ka mid ah macdanta birta, slag iyo warshadaha kale, kuwaas oo ah kuwo sax ah oo shiidid yar iyo isticmaal yar.
Kubbada birta ee chromium-ka ee u adkaysta xirashada waa 4% ilaa 6% iyo HRC ≥ 47. Heerkan waxaa loo yaqaan kubbadaha birta ee badan, kaas oo ka sarreeya birta chromium-ka ee hooseysa iyadoo la tixraacayo xoogga iyo iska caabbinta xirashada. Kubbada chromium-ka waa 7% – 10% iyo adkaanta HRC ≥ 48 waa kubbadaha birta ee la shubay ee chromium, kuwaas oo waxqabadkooda iyo dhinacyadooda kale ay ka sarreeyaan kubbadda birta ee badan ee daawaha leh.
Kubbadaha birta ah ee u adkaysta xirashada ≥ 10% – 14% iyo HRC-ga adag ≥ 58. Kubbadaha birta ah ee la shubay ee chromium-ka sare leh waa nooc ka mid ah kubbadda birta ah ee u adkaysta xirashada oo leh heer sare oo khuseeya iyo waxqabad kharash wanaagsan oo suuqa hadda jira. Kala duwanaanshaha isticmaalkeedu waa ballaaran yahay waxaana loo isticmaalaa birta, sibidhka, awoodda kulaylka, nadiifinta gaaska qiiqa, walxaha magnetic-ka, kiimikada, bamka biyaha dhuxusha; sidaas darteed, budada superfine, slag, dambaska duulista, kalsiyum carbonate iyo warshadaha quartz-ciid. Shaqadeeda waxaa si gaar ah loogu iftiimiyay warshadaha sibidhka, taas oo kordhin karta wax soo saarka iyo yarayn karta isticmaalka tamarta.
Waqtiga boostada: Noofambar-29-2022
