Ndeapi maratidziro ehunyanzvi carburizing uye kudzima zvikamu?

Carburizing uye kudzima inoumba martensite layer ine yakakwira kabhoni yemukati pamusoro pechikamu, iyo ine kuoma kwakanyanya, yakakwira carbide yemukati uye yakakwirira kupfeka kuramba. Iyo musimboti ndeye yakaderera-kabhoni martensite chimiro, saka iyo yepamusoro yekumanikidza kushushikana yakakura. Kuoma kwese kwakakwira. Aya maitiro anoita kuti carburizing uye kudzima zvishandiswe zvakanyanya mumagiya uye zvimwe zvikamu zvinoda kupfeka kwakanyanya kuramba, simba rekuneta kwakanyanya, uye kusimba kwekubata kuneta. Induction kuomesa ine hunhu hwekukurumidza kupisa uye nekukurumidza kutonhora, izvo zvakanyanya kuwedzera saizi yezviyo. Ichiri kuwana iyo yekupedzisira-yakanyanya kuomarara, inowana yakanyanya kuomarara index, nekudaro ichivandudza kuita kwezvikamu.

1. Abrasion kuramba

Carburized uye kudzimwa zvikamu zvine yakakwirira kupfeka kuramba nekuda kwekuoma kwakanyanya uye carbides pamusoro. Induction kuomeswa kunogona kuwana kuomarara kwakanyanya pasi peyakaderera kabhoni yemukati, uye kupfeka kuramba kunobatanawo neiyo microstructure.

20CrMnTiH3 carburizing quenching uye 45 simbi induction quenching inogadzirwa kuita yakajairwa kupfeka sampuli, nekuoma kwe62 ~ 62.5HRC, yakaedzwa paM-200 yekupfeka yekuyedza muchina, uye zvikamu zvekupfeka zvinodzimwa T10. Mushure me 1.6 miriyoni nguva yekupfeka, iyo carburized sampu yakarasika 4.0 mg uye induction yakadzima sampu yakarasika 2.1 mg. Ndeipi nzira inoita kuti induction yakaomeswa sampuli dzive nepamusoro kupfeka kuramba? Zvakakodzera kudzidza.

2. Simba

Zvinowanzotendwa kuti simba rine chekuita nekuoma, uye kuoma kwakafanana kunogona kuwana simba rimwechete. Kune zvimwe zvikamu, ndeapi mamwe maparamita ane hukama nazvo? Isu takaedza akajairwa dumbbell-yakaita tensile emhando dzakagadzirwa 20CrMnTiH3 carburizing uye kudzima uye 45 simbi, 40CrH, 40MnBH induction quenching. Iyo inoshanda chikamu dhayamita yemuenzaniso yaive 20mm, uye akayerwa kusimba masimba aive 819MPa, 1184MPa, 1364MPa, Pa1369MPa, kusimba kweakati wandei epakati kabhoni simbi masampuli mushure mekudzima induction akakwira zvakanyanya kupfuura ayo ezvikamu zvecarburized.

Migumisiro yemaitiro maviri aya inofananidzwa. Pamusoro peiyo carburized uye kudzimwa sampuro ndeyepamusoro-kabhoni martensite, iyo carburized layer i1.25mm, kuomarara i62-63HRC, uye core is low-carbon martensite, uye kuomarara i32HRC. Kumusoro kweiyo induction yakaomeswa sampuli ndeyepakati-kabhoni martensite, kudzika kweiyo yakaomeswa layer i3.6mm, kuomarara i62HRC, uye core is tempered sorbite, kuomarara i26HRC. Zvinogona kuwanikwa kuti pane mutsauko mukuru mukudzika kwechiso chakaomeswa chifukidziro chinowanikwa nenzira mbiri dzekurapa, uye induction kuomeswa kunogona kuwana yakadzika yakaomeswa layer, nekudaro kuwana chikamu chikuru chesimba. Naizvozvo, kana tichikurukura kuti ndeipi nzira yekusimbisa iri nani, isu hatifanire kungoiongorora chete kubva kune diki maonero, asi zvakare tifunge nezve iyo macro maonero.

3. Kuneta simba

Mushure me carburizing uye induction kuomeswa, pamusoro pezvikamu zvinosimbiswa zvinobudirira, uye yakakura yakasara yekumanikidza kushushikana inoumbwa, uye vese vane yakanyanya kuneta simba.

Iwo magiya magiya ane modulus ye2.5 akasarudzwa kuti atsvagirwe, uye iwo akapiswa uye akadzimwa ne20CrMnTiH3 ine carburizing kudzika kwe1.2mm; 45 simbi uye 42CrMo dzakaiswa induction dzakaomeswa nemudzi wezino kudzimisa kudzika kwe2.0mm. Kuomarara ndiko 61～63HRC, uye mazino anogarwa mushure mekurapwa kwekupisa. Edzai pamushini wekuedza kuneta maererano nenzira yekurodha inoratidzwa muMufananidzo 1. Iko kupeta kwepakati kuneta kwekupedzisira kudzvinyirira mitoro yezvinhu zvitatu zvakasiyana-siyana uye mazino egiya anopisa ari 18.50kN, 20.30kN uye 28.88kN, maererano. Kusimba kwekuneta kwe42CrMo induction yakaomeswa magiya i56% yakakwira kupfuura iyo ye20CrMnTiH3 carburizing uye kudzima, iyo ine zvakakosha zvakanakira. Kuti uongorore maitiro ayo, zvinodikanwa kutanga neyakaomeswa dhizaini dhizaini, pamusoro compressive stress level, chimiro chemoyo uye kuoma.

4. Bata kuneta simba

Kune zvikamu zvegiya, iyo yekubata kuneta kutadza kwenzvimbo yezino zvakare ndiyo huru yekutadza maitiro. Chiedza-basa magiya ane zvakaderera zvinodikanwa zvekusangana kuneta, uye kana induction kuomeswa kunogona kutsiva carburizing uye kuomesa pane chaiwo anorema-basa magiya, iyi index ndeyemukati inofanirwa kuongororwa. Tsvakurudzo yedu munharaunda iyi haina kudzika zvakakwana.

5. Kudzima deformation

Iyo carburizing maitiro ane tembiricha yakakwira, nguva refu uye hombe yekudzima deformation. Iyo inotevera yekukuya inozotetepa kumusoro nesimba repamusoro uye yakanyanya kudzvanya kushushikana, zvichikonzera kuderera kwesimba rechikamu. Carburizing uye kudzima magiya kuri kuwedzera kushandisa tekinoroji yekudzima tekinoroji, chinangwa ndechekudzikisa kudzimisa deformation. Iyo deformation yekuomesera induction idiki, uye nekuda kwehupamhi hweakadzima layer, kukanganisa kwekukuya pakadzika kuoma kudiki.