Kutakura simbi kunonyanya kushandiswa kugadzira zvinhu zvinotenderedza uye zvindori zvemabhengi.Nekuti kutakura kunofanirwa kuve nehupenyu hwakareba, kurongeka kwakanyanya, kuderera kwekupisa chizvarwa, kukurumidza kukwira, kusimba kwakadzika, ruzha rwakadzika, kukwirira kupfeka kuramba, nezvimwewo, simbi inotakura inofanira kuva ne: kuomarara kwakanyanya, kuomarara kweyunifomu, kukwirisa elastic muganho, kuneta kwakanyanya. Simba, kusimba kwakakosha, kumwe kuomarara, kusaita ngura mumafuta emuchadenga.Kuti zvizadzise zvinodiwa pamusoro pekuita zvinodiwa, zvinodiwa zvekufananidzwa kwemakemikari ekugadzirwa kwesimbi inotakura, zvinyorwa uye rudzi rwezvinhu zvisiri zvesimbi inclusions, ukuru uye kugoverwa kwecarbides, uye decarburization yakasimba.Kutakura simbi kunowanzo kusimudzira kumhando yepamusoro, kuita kwepamusoro uye akawanda marudzi.Kutakura simbi yakakamurwa kuita yakakwira kabhoni chromium inobereka simbi, carburizing inotakura simbi, tembiricha inotakura simbi, simbi isina tsvina uye yakakosha kutakura zvinhu zvinoenderana nehunhu uye nharaunda yekushandisa.Kuti usangane nezvinodiwa zvekupisa kwepamusoro, kumhanya kwakanyanya, kukwira, kusimba kwecorrosion uye kushomeka kwemwaranzi, nhevedzano yemasimbi matsva anotakura ane akakosha zvinhu anoda kugadzirwa.Kuti uderedze huwandu hweokisijeni yesimbi inotakura, matekinoroji ekunyungudutsa ekutakurisa simbi akadai sekunyungudutsa vacuum, electroslag remelting, uye electron beam remelting akagadzirwa.Iko kunyungudutswa kwehuwandu hukuru hwesimbi inobereka kwakagadzirwa kubva kumagetsi arc furnace kunyunguduka kune akasiyana marudzi ekutanga ekunyungudutsa mavira uye kunze kwekunatsa kwevira.Parizvino, kutakura simbi ine simba rinopfuura 60 tons + LF / VD kana RH + inoenderera mberi ichikanda + inoenderera mberi inotenderera inoshandiswa kubudisa simbi inotakura kuitira kuti iwane chinangwa chepamusoro, kushanda kwepamusoro uye kushandiswa kwesimba shoma.Panyaya yekurapa kwekupisa, moto wepasi wechoto uye hood yevira zvakagadziridzwa kuita inoenderera inodzorwa mamiriro ekunze annealing furnace yekupisa kupisa.Parizvino, iyo inoramba ichipisa yekupisa yemhando yevira ine hurefu hurefu hwe150m, uye iyo nodular chimiro chesimbi inotakura yakagadzikana uye yunifomu, iyo decarburization layer idiki, uye kushandiswa kwesimba kwakaderera.

Bearing steel inofanira kuva nezvinhu zvinotevera:

1. High kuonana kuneta simba.
2. High abrasion resistance.
3. Yakakwirira elastic muganho uye goho simba.
4. Kuoma kwepamusoro uye yunifomu.
5, imwe kukanganisa kuoma.
6. Good dimensional kugadzikana.
7, yakanaka corrosion inhibition performance.
8. Good process performance.

Kutakura simbi zvinhu zvakajairika:

Kusarudzwa kwekutakura zvinhu zvesimbi kunodawo kutenga kwakananga.Zvekutakura zvinhu zvinoshanda pasi pemamiriro akakosha, zvinoenderana nezvavanoda, vanofanirwawo kuve neakakosha zvivakwa zvinoenderana nemamiriro avo, senge: kukwira tembiricha yekudzivirira, kushomeka kwekushisa, corrosion resistance, Anti-radiation, anti-magnetic uye. mamwe maitiro.

Simbi yakazara yakaomeswa inobereka yakanyanya kukwirisa kabhoni chromium simbi, senge GCr15, ine kabhoni yemukati inosvika 1% uye chromium yemukati inosvika 1.5%.Kuti uvandudze kuomarara, kupfeka kuramba uye kuoma, mamwe silicon, manganese, molybdenum, nezvimwewo, seGCr15SiMn, inowedzerwa zvakakodzera.Iyi mhando yesimbi inotakura ine yakakura kuburitsa, inoverengera inodarika 95% yezvose zvinotakura simbi inobuda.

Carburizing inotakura simbi ndeye chromium, nickel, molybdenum alloy structural simbi ine kabhoni yemukati ye0.08 kusvika 0.23%.Pamusoro pechikamu chinotakura carbonitrided kuti ivandudze kuoma kwayo uye kupfeka kusagadzikana.Simbi iyi inoshandiswa kugadzira maBearings mahombe anotakura mitoro yakasimba, senge mabearings mahombe anokunguruka, mabearings emotokari, mabearings emuchina wemigodhi, uye njanji dzemotokari.

Masimbi asina tsvina anosanganisira yakakwira kabhoni chromium simbi isina simbi, senge 9Cr18, 9Cr18MoV, uye yepakati kabhoni chromium simbi isina simbi, senge 4Cr13, nezvimwewo, ayo anoshandiswa kugadzira isina tsvina uye isingaore.

Yepamusoro tembiricha inotakura simbi inoshandiswa pakupisa kwepamusoro (300 ~ 500 ℃).Zvinodiwa kuti simbi ine kumwe kuomarara kwakatsvuka uye kupfeka kuramba patembiricha yekushandisa.Vazhinji vavo vanoshandisa high-speed tool simbi zvinotsiva, zvakadai W18Cr4V, W9Cr4V, W6Mo5Cr4V2, Cr14Mo4 uye Cr4Mo4V.