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Chidziwitso cha D2 1.2379 SKD11

Pofikira>Zamgululi>Cold Ntchito Chida Zitsulo>Chidziwitso cha D2 1.2379 SKD11

Cold Working Tool Steel D2 1.2379 SKD11 mapepala

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zofunika

D2 imapereka kuphatikiza kothandiza kwa kukana kuvala ndi kulimba, magwiridwe antchito, mtengo, ndi mitundu yosiyanasiyana yazogulitsa. Imapezekanso ngati chinthu cha Electro-Slag-Remelted (ESR). 

1. Gulu:DIN1.2379/JIS SKD10/AISI D2/GB Cr12Mo1V1

2. Chikhalidwe: Kutentha kopindika, Chotsekeka, Pamwamba pakuda

3. Kulimba:≤255HBS  


Mapulogalamu:

Zida za AISI grade D2 zimagwiritsidwa ntchito popanga zida zakutali, komwe kukana kuvala ndikofunikira, monga kubisa kanthu kapena kupanga ma dies ndi kugubuduza ulusi kufa.


ZINTHU

C
MnSiCr
Mo
V
C
1.50
0.30
0.30
12.00
0.75
0.90
1.50


zofunika:

Kachulukidwe: 0.278 lb/in3 (7695 kg/m3)

Mphamvu Yeniyeni: 7.70

Modulus of Elasticity: 30 x 106 psi (207GPa)


Kuthekera: 

50-60% ya 1% mpweya chitsulo

Kutentha Kwambiri: Kuti muchepetse kupotoza ndi kupsinjika mu zida zazikulu kapena zovuta gwiritsani ntchito kutenthetsa kawiri. 

Kutenthetsa pamlingo wosapitirira 400 ° F pa ola (222 ° C pa ola) mpaka 1150-1250 ° F (621-677 ° C) mofanana, ndiye kutentha kwa 1400-1450 ° F (760-788 ° C). 

Pazida zodziwika bwino, gwiritsani ntchito kutentha kwachiwiri kokha ngati chithandizo chotenthetsera chimodzi.


Austenitizing (Kutentha Kwambiri):Kutenthetsa pang'onopang'ono kuchokera ku preheat. Ng'anjo kapena Mchere: 1850-1875 ° F (1010-1024 ° C).


Kuthetsa:Mpweya kapena mpweya woponderezedwa mpaka 150-125ºF (66-51ºC). Kukula mpaka mainchesi 4 (101.6 mm) mu makulidwe kumadutsa mpweya utakhazikika kuchokera ku 1575ºF (857ºC). Kukula mpaka mainchesi 6 (152.4 mm) mu makulidwe kumadutsa mpweya utakhazikika kuchokera ku 1625ºF (885ºC).


Kutentha:Kupsa mtima mwamsanga pambuyo kuzimitsa. Gwirani kutentha kwa ola limodzi pa inchi (1 mm) ya makulidwe, osachepera maola awiri, kenako mpweya wozizira mpaka kutentha kozungulira. Nthawi zambiri kutentha kumakhala 25.4 mpaka 2ºF (350 mpaka 400ºC).

Kuti muzitha kuvala kwambiri, kupsa mtima pakati pa 300-350 ° F (149-177 ° C) pa kuuma kwa 62-64 HRC. Kuti mukhale ndi malire abwino pakati pa kukana kuvala ndi kulimba, kupsa mtima pakati pa 500-550 ° F (260-288 ° C). Izi zidzatulutsa 58-60 HRC.

Kuti mukhale wolimba kwambiri, kupsya mtima kawiri, maola awiri ndi maola awiri, pa kutentha pamwamba pa 2 ° F (2 ° C). Izi zidzatulutsa kuuma kosakwana 950 HRC.

Kuchepetsa kupsinjika kwamkati m'magawo akuluakulu kuposa mainchesi a 6 (152.4 mm) ndikuwongolera kukhazikika kwa zida zomwe zidzakhale EDM'd pambuyo pa chithandizo cha kutentha, nthawi zowuma za 4 mpaka maola 6 pa kutentha kosachepera 950 ° F (510 ° C). ) amalimbikitsidwa kwambiri.


Annealing:Annealing ayenera kuchitidwa pambuyo ntchito yotentha ndi pamaso anaumitsanso. Kutenthetsa pamlingo wosapitirira 400 ° F pa ola (222 ° C pa ola) mpaka 1600-1650 ° F (871-899 ° C), ndipo sungani kutentha kwa ola limodzi pa inchi (1mm) ya makulidwe apamwamba; 25.4 maola osachepera. Ndiye kuziziritsa pang'onopang'ono ndi ng'anjo pa mlingo wosapitirira 2 ° F pa ola (50 ° C pa ola) mpaka 28 ° F (1000 ° C). Pitirizani kuziziritsa kutentha kozungulira mu ng'anjo kapena mpweya. Zotsatira zake kuuma kuyenera kukhala kopitilira 538 HBW.


katunduyokukula (mm)njiraKutumiza
MapepalaMtengo wa T1.0-2.5KuziziritsaMalo akuda & Anneal
T 2.5 - 8.0Kutentha KwambiriMalo akuda & Anneal


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