Cr12 yotentha yozungulira zitsulo zozungulira

Chitsulo cha Cr12 ndichitsulo chofanana ndi aloyi Chida, Cr12 ndi Chitsulo cha Cold Work Alloy Tool. Cold work Mechanical Properties ndi zabwino kwambiri. Cr12 zitsulo ndi kukana abrasion mkulu, mapindikidwe yaying'ono wa ntchito ozizira kufa zitsulo, mphepo zolimba chida zitsulo, okhutira mpweya ochuluka monga 1.5%, chromium zili mkulu monga 11.5%, kutentha kutentha kuuma kuuma akhoza kufika 60 HRC. Cr12 gawo zitsulo angagwiritsidwe ntchito:

a) Kufa kwa silicon kumagwiritsidwa ntchito makamaka pazinthu zazing'ono za loaGBg zomwe zimafunikira kukana kuvala kwambiri, kujambula mawonekedwe osavuta ndikusoweka kumwalira.
b Dongosolo la kupanga nkhungu za benGBg zomwe zimafuna kuvala kwakukulu, mawonekedwe ovuta a nkhonya, kufa, kuika, kuchita nkhonya, pamene kufa kumalimbikitsidwa, kuuma 60 ~ 64HCR.
c) kupanga kujambula kufa kufa kuvala chofunika, tikulimbikitsidwa kuuma 62 ~ 64HCR.
d) kwa odana ndi ozizira zotayidwa extrusion kufa nkhonya, tikulimbikitsidwa kuuma 60 ~ 62HCR.
e) kwa benGBg carbon zili 0,65% kuti 0,80% umboni builGBg zitsulo, kuuma 60 ~ 62HCR.
f) itha kugwiritsidwa ntchito pobisala kufa, nkhonya, mawilo akugudubuza, zometa ubweya, kuzizira kwa heaGBg kufa, nkhungu zadongo.
g) angagwiritsidwe ntchito kuumba thermoset pulasitiki molGBg.

Kapangidwe ka mankhwala (wt.%) a kalasi ya Cr12: GB/T 1229-2000

Zimango katundu wa kalasi Cr12 GB/T 1229-2000

GB Cr12 aloyi chida chachitsulo chofanana ndi  -UNS T30403

Kugwiritsa ntchito zinthu zachitsulo za Cr12

Chitsulo cha Cr12 ndichitsulo chofanana ndi aloyi Chida, Cr12 ndi Chitsulo cha Cold Work Alloy Tool. Cold work Mechanical Properties ndi zabwino kwambiri. Cr12 zitsulo ndi kukana abrasion mkulu, mapindikidwe yaying'ono wa ntchito ozizira kufa zitsulo, mphepo zolimba chida zitsulo, okhutira mpweya ochuluka monga 1.5%, chromium zili mkulu monga 11.5%, kutentha kutentha kuuma kuuma akhoza kufika 60 HRC. Cr12 gawo zitsulo angagwiritsidwe ntchito:

a) Kufa kwa silicon kumagwiritsidwa ntchito makamaka pazinthu zazing'ono za loaGBg zomwe zimafunikira kukana kuvala kwambiri, kujambula mawonekedwe osavuta ndikusoweka kumwalira.
b Dongosolo la kupanga nkhungu za benGBg zomwe zimafuna kuvala kwakukulu, mawonekedwe ovuta a nkhonya, kufa, kuika, kuchita nkhonya, pamene kufa kumalimbikitsidwa, kuuma 60 ~ 64HCR.
c) kupanga kujambula kufa kufa kuvala chofunika, tikulimbikitsidwa kuuma 62 ~ 64HCR.
d) kwa odana ndi ozizira zotayidwa extrusion kufa nkhonya, tikulimbikitsidwa kuuma 60 ~ 62HCR.
e) kwa benGBg carbon zili 0,65% kuti 0,80% umboni builGBg zitsulo, kuuma 60 ~ 62HCR.
f) itha kugwiritsidwa ntchito pobisala kufa, nkhonya, mawilo akugudubuza, zometa ubweya, kuzizira kwa heaGBg kufa, nkhungu zadongo.
g) angagwiritsidwe ntchito kuumba thermoset pulasitiki molGBg.

Kupanga zinthu zachitsulo za Cr12

Preheat pang'onopang'ono mpaka 900 ~ 950 ° C ndiye onjezerani kutentha kwambiri mpaka 1050-1100 °C. Osapanga pansi pa 1020 ° C. Kenako kuziziritsa Cr12 pang'onopang'ono mutatha kupanga.

Annealing wa Cr12 zitsulo zakuthupi

Chitsulo cha zida za GB Cr12 chimaperekedwa momwe zilili bwino pakuwombedwa ndi makina. Ngati pakufunika kukonzanso. Tenthetsani ku Cr12 chitsulo 900 °C ndi Zilowerereni bwino, kenako kuziziritsa mu ng'anjo. Pambuyo pa annealing, kulimba kwa Cr12 ndi 255HB Max.

Kuchepetsa Kupsinjika kwa Cr12 zachitsulo

Pamene zida zopangidwa kuchokera ku Cr12 alloy tool zitsulo ziyenera kupangidwa kwambiri kapena kugwetsedwa, kumasuka kwa zovuta zamkati ndikofunikira musanawumitsidwe kuti muchepetse kusokonezeka. Kuchepetsa kupsinjika ndikofunikira kwambiri, kuchepetsa kupsinjika kuyenera kuchitika pambuyo popanga makina ovuta. Kuti muchepetse nkhawa, tenthetsani chigawocho mosamala mpaka 600-650 ° C, lolani nthawi yonyowa bwino (maola awiri pa 25mm ya gawo lolamulira). Kuziziritsa mu ng'anjo kapena mpweya. Zida zimamalizidwa kumakina asanayambe kuumitsa.

Kuwumitsa kwa Cr12 zitsulo zakuthupi

GB Cr12 Delivery condition nthawi zambiri imakhala Annealing, kotero kuumitsa ndikofunikira. Kutenthetsa zida za Cr12 mu ng'anjo yoyendetsedwa bwino, ngati mulibe ng'anjo yoyendetsedwa, kuumitsa kwa paketi kumalimbikitsidwa mwamphamvu. Pre-Heat Cr12 chida chitsulo mpaka 750 ~ 800 ° C, zilowerereni nthawi yokwanira mpaka kutentha kudutsa. Kenako anabweretsa mpaka 1000-1040 °C, kuzirala mu mpweya kapena mafuta kuzimitsa.

Kutentha kwachitsulo cha Cr12

Kutenthetsa GB Cr12, Kutenthetsa mofanana mpaka kutentha kofunikira kulola nthawi yonyowa ya maola awiri pa 25mm ya gawo lolamulira. Chotsani m'ng'anjo ndikulola kuti muzizizira mumlengalenga. Kutentha kosiyanasiyana kumapeza kuuma kosiyana. Kutentha kwanthawi zonse ndi 204 ° C, pambuyo pakutentha kwamphamvu 61HRc Min.

Kuwotcherera kwa Cr12 zitsulo zakuthupi

Nthawi zambiri, sitikulangiza welGBg wa aloyi chida zitsulo koma owerenga nthawi zina amakonda kuwotcherera pofuna kupewa mtengo retooling. Tiyenera kukumbukira kuti kalasi iyi ndi chitsulo chowumitsa mpweya komanso kuti mu welGBg malo a weld amafika kutentha pafupifupi 1000 ° C. Kung'amba kumachitika panthawi yozizirira pokhapokha ngati palibe njira zodzitetezera. Njira zodziwika bwino za welGBg ndi atomic hydrogen ndi argon arc. Tikukulimbikitsani kuti mulumikizane ndi ogulitsa katundu wa welGBg omwe angakupatseni chithandizo chonse komanso zambiri pazitsulo zazitsulo za welGBg.

Nitriding wa Cr12 zitsulo zakuthupi

Cr12 aloyi chida chitsulo akhoza nitrided kupereka cholimba pamwamba mlandu. Pambuyo pa chithandizo cha kutentha kwa nitriGBg, Cr12 imakhala yosamva kuvala komanso kukokoloka. NitriGBg imawonjezeranso kukana kwa dzimbiri.

Final Akupera Cr12 zitsulo zakuthupi

GrinGBg ndi GB Cr12 Chitsulo. Sankhani giredi yoyenera ya gudumu mogwirizana ndi wopanga magudumu a grinGBg. Onetsetsani kuti gudumu la grinGBg lili bwino pogwiritsa ntchito chida choyenera kuvala. Wet grinGBg ndi njira yabwino yogwiritsira ntchito zoziziritsa kukhosi zambiri. Ngati grinGBg youma imagwiritsidwa ntchito ndiye gwiritsani ntchito gudumu lofewa kwambiri.