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Cr12 bir wareeg ah oo kulul oo duuban
Cr12 bir wareeg ah oo kulul oo duuban
Cr12 bir wareeg ah oo kulul oo duuban
Cr12 bir wareeg ah oo kulul oo duuban

Cr12 bir wareeg ah oo kulul oo duuban

Birta wareegsan ee CR12 waxaa loola jeedaa bir dheer oo adag oo leh qayb iskutallaab ah oo wareeg ah. Tilmaamaha waxaa lagu muujiyay millimitir dhexroor. Tusaale ahaan, "50" macnaheedu waa bir wareegsan oo dhexroorkeedu yahay 50 mm. Birta wareegsan waxay u qaybsantaa saddex nooc: kulul oo duuban, been abuur iyo qabow la sawiray.
Codsiyada walxaha birta ah ee Cr12
Birta Cr12 waa bir alaabo ah oo caadi ah, Cr12 waa bir bir ah oo Shiinees ah oo Qabow Shaqada Alloy. Shaqadeeda Qabow Guryaha Makaanikada waa mid aad u fiican. Birta Cr12 oo leh iska caabin heer sare ah, qallafsanaan yar oo shaqo qabow ah ayaa dhinta birta, birta qalabka adag ee dabaysha, kaarboonka sida ugu sarreeya 1.5%, maadada chromium ilaa 11.5%, adkaanta daaweynta kulaylku waxay gaari kartaa 60 HRC. Birta qaybta Cr12 waxaa loo isticmaali karaa:

a) Dhimashada silikoon waxaa inta badan loo isticmaalaa xaaladaha loaGBg yar ee firfircoon waxay u baahan yihiin iska caabin xidhasho sare, sawir qaab fudud iyo dhinta faaruq ah.
b Nidaamka soo saarista caaryada benGBg ee u baahan xirmo sare, qaabka kakan ee feerka, dhinta, gelisa, feer, marka dhimashada lagu taliyey, adkaanta 60 ~ 64HCR.
c) soo saarida sawir dhimis dhinta loo baahan yahay, waxaa lagu talinayaa in ay adag tahay 62 ~ 64HCR.
d) for anti-qabow extrusion aluminium dhinta feerka, waxaa lagu talinayaa in ay adag tahay 60 ~ 62HCR.
e) loogu talagalay kaarboonka benGBg ee 0.65% ilaa 0.80% caddaynta dhismaha GBg, adkaanta 60 ~ 62HCR.
f) waxa loo isticmaali karaa dhinta maran, feedh, giraangiraha, garbaha xiirid, dhinta heaGBg qabow, caaryada dhoobo.
g) waxaa loo isticmaali karaa heerkulbeegga caagga ah ee molGBg.

Kiimikada iyo Makaanikada

Halabuurka kiimikada(wt.%) ee darajada Cr12: GB/T 1229-2000

Qaybaha Min. (≥) ugu badnaan (≤)
C 2.00 2.30
Si - 0.40
Mn - 0.40
Cr 11.50 13.00

Qalabka makaanikada ee darajada Cr12 GB /T 1229-2000

Awood caddayn
Rp0.2 (MPa)
Xoog xajin
Rm (MPa)
Saamaynta tamarta
KV (J)
Kordhinta jabka
A (%)
Hoos u dhigista qaybta jabka
Z (%)
Xaaladda Kulaylka-La daaweeyay adkaanta brinell (HBW)
539 (≥) 215 (≥) 42 14 42 Xalka iyo gabowga, Annealing, Ausage, Q+T, iwm 244
GB Cr12 aluminium qalab bir ah oo u dhiganta  -UNS T30403
Darajo C Si Mn P S Cr Mo V
D3 2.00~2.35 0.10~0.60 0.20~0.60 0.030 MAX 0.030 MAX 11.0~13.5 ~ 1.00 MAX
SKD1 1.90~2.20 0.10~0.60 0.20~0.60 0.030 MAX 0.030 MAX 11.0~13.0 ~ 0.30 MAX
Cr12 2.00~2.30 0.40 MAX 0.40 MAX 0.030 MAX 0.030 MAX 11.50~13.00 ~ ~
1.2080 / X210Cr12 1.90~2.20 0.10~0.40 0.15~0.45 0.030 MAX 0.030 MAX 11.00~12.00 ~ ~
Codsiyada walxaha birta ah ee Cr12

Birta Cr12 waa bir alaabo ah oo caadi ah, Cr12 waa bir bir ah oo Shiinees ah oo Qabow Shaqada Alloy. Shaqadeeda Qabow Guryaha Makaanikada waa mid aad u fiican. Birta Cr12 oo leh iska caabin heer sare ah, qallafsanaan yar oo shaqo qabow ah ayaa dhinta birta, birta qalabka adag ee dabaysha, kaarboonka sida ugu sarreeya 1.5%, maadada chromium ilaa 11.5%, adkaanta daaweynta kulaylku waxay gaari kartaa 60 HRC. Birta qaybta Cr12 waxaa loo isticmaali karaa:

a) Dhimashada silikoon waxaa inta badan loo isticmaalaa xaaladaha loaGBg yar ee firfircoon waxay u baahan yihiin iska caabin xidhasho sare, sawir qaab fudud iyo dhinta faaruq ah.
b Nidaamka soo saarista caaryada benGBg ee u baahan xirmo sare, qaabka kakan ee feerka, dhinta, gelisa, feer, marka dhimashada lagu taliyey, adkaanta 60 ~ 64HCR.
c) soo saarida sawir dhimis dhinta loo baahan yahay, waxaa lagu talinayaa in ay adag tahay 62 ~ 64HCR.
d) for anti-qabow extrusion aluminium dhinta feerka, waxaa lagu talinayaa in ay adag tahay 60 ~ 62HCR.
e) loogu talagalay kaarboonka benGBg ee 0.65% ilaa 0.80% caddaynta dhismaha GBg, adkaanta 60 ~ 62HCR.
f) waxa loo isticmaali karaa dhinta maran, feedh, giraangiraha, garbaha xiirid, dhinta heaGBg qabow, caaryada dhoobo.
g) waxaa loo isticmaali karaa heerkulbeegga caagga ah ee molGBg.

Been abuurista walxaha birta ah ee Cr12

Si tartiib ah u kulayl ilaa 900 ~ 950C ka dibna si degdeg ah u kordhi heerkulka ilaa 1050-1100 °C. Ha ka hoos marin 1020°C. Kadibna si tartiib ah u qabooji Cr12 ka dib markaad been abuurto.

Ciribtirka walxaha birta ee Cr12

Qalabka GB Cr12 birta waxaa la keenaa xaalad caadi ah marka la tirtiro oo la mashiin karo. Haddii loo baahdo dib-u-cusbooneysiin. Kuleyli birta Cr12 900 °C oo si fiican u qoyso, ka dibna ku qabooji foornada. Ka dib markii la tirtiro, adkaanta dhalmada Cr12 waa 255HB Max.

Culayska yaraynta walxaha birta ee Cr12

Marka ay tahay in qalabka laga sameeyo Cr12 aluminium birta si xoog leh loo farsameeyo ama dhulka la dhigo, nasashada noocyada gudaha ayaa lagula talinayaa ka hor inta aan la adkeyn si loo yareeyo suurtagalnimada qallooc. Dejinta cadaadiska waa mid aad lagama maarmaan u ah, dhimista cadaadiska waa in la sameeyaa ka dib makiinado qallafsan. Si aad u nafiso, u dir qaybta si taxadar leh ilaa 600-650 ° C, u ogolow waqti qooyn wanaagsan (laba saacadood 25mm ee qaybta xukunka). Ku qabooji foornada ama hawada. Qalabka waxaa lagu dhammeeyaa mishiin ka hor inta aan la adkayn.

Adkeynta walxaha birta ee Cr12

GB Cr12 Xaaladda gaarsiinta inta badan waa ciribtirka, markaa adkeynta waa lagama maarmaan. Kuleyli qalabka Cr12 foornada jawiga la kontoroolo, haddii aan la hayn foornada la kantaroolo, baakad adag ayaa lagula talinayaa. Kahor kulaylka qalabka Cr12 birta ilaa 750 ~ 800 ° C, qooyi waqti ku filan ilaa kulaylku marayo. Ka dibna la keeno ilaa 1000-1040 °C, qaboojinta hawada ama deminta saliidda.

Heerkulaynta walxaha birta ah ee Cr12

Kuleyli GB Cr12, Kuleyli si isku mid ah heerkulka loo baahan yahay taasoo u oggolaaneysa waqti qooyayn ah laba saacadood 25mm ee qaybta xukunka. Ka soo bax foornada oo u ogolow inaad ku qaboojiso hawada. Heerkulka kulaylka ee kala duwan wuxuu heli doonaa qallafsanaan kala duwan. Heerkulka caadiga ah waa 204°C, ka dib marka uu adkeysto 61HRc Min.

Alxanka ee walxaha birta ah ee Cr12

Guud ahaan, kuma talineyno welGBg ee birta daawaha ah laakiin isticmaalayaashu mararka qaarkood waxay door bidaan inay alxaan si ay uga fogaadaan qiimaha dib u qalabaynta. Waa in la xasuusnaado in darajadan ay tahay birta hawo adkeeya iyo in welGBg aagga alxanka uu gaaro heerkul dhan 1000°C. Dildilaacku waxay u badan tahay inuu dhaco xilliga qaboojinta haddii aan taxaddar habboon la qaadin. Hababka caanka ah ee welGBg waa atomi hydrogen iyo argon arc. Waxaan kugula talineynaa inaad la xiriirto alaab-qeybiyahaaga welGBg kaasoo ah inuu ku siiyo kaalmo buuxda iyo macluumaad ku saabsan birta welGBg Alloy Tools.

Nitriding of Cr12 walxaha birta ah

Qalabka Cr12 aluminium birta waa la nitrided karaa si loo bixiyo kiis dusha adag. Daawaynta kulaylka nitriGBg ka dib, Cr12 ayaa markaa aad u adkaysa xidhashada iyo nabaad guurka. NitriGBg waxay kaloo kordhisaa caabbinta daxalka.

Shiidi ugu dambaysay ee walxaha birta ee Cr12

Guji GBg Cr12 Steel. Dooro darajada saxda ah ee taayirrada adigoo la tashanaya soo saaraha giraangiraha. Hubi in giraangiraha grinGBg uu ku jiro xaalad wanaagsan adoo adeegsanaya qalab labiska ku habboon. Qoyan GBg waa ikhtiyaarka la doorbidi karo iyadoo la isticmaalayo sahay qaboojiye badan. Haddii grining engegan la miciinsado dabadeed isticmaal shaag aad u jilicsan.

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