Bambanci tsakanin high mita quenching da tsaka -tsakin mitar tsaka -tsaki

1. Menene induction hardening

Ana amfani da mafi yawan kashe-kashe da ake amfani da su don kashe murfin sassan ƙarfe na masana’antu. Hanya ce ta zafin zafi na ƙarfe wanda ke haifar da wani fitowar ruwa a saman aikin, cikin sauri yana murƙushe sashin, sannan ya kashe shi da sauri.

Na biyu, meye tsaka -tsakin mitar kashewa

Matsakaicin tsaka -tsakin tsaka -tsaki shine sanya sassan ƙarfe a cikin murfin shigarwa, murfin shigarwar yana da ƙarfi don samar da madaidaicin filin lantarki, kuma ana haifar da madaidaicin ruwa a cikin ɓangaren ƙarfe. Sakamakon tasirin fata, na yanzu yana mai da hankali ne akan farfajiyar ɓangaren ƙarfe, don haka yanayin zafin ƙasa Mafi girma shine sanyaya feshin ruwa ko wasu sanyaya kai tsaye a ƙarƙashin murfin shigarwa. Tun da dumama da sanyaya sun fi mai da hankali kan farfajiya, gyaran farfajiyar a bayyane yake, yayin da canjin cikin gida ba ainihin bane, kuma yana iya samun tasirin jiyya ta musamman.

Uku, bambancin dake tsakanin mawuyacin hali da kashewa

Haƙƙen maɗaukaki da kashe-kashe matsakaici duka biyun fasaha ce ta maganin zafi. Dukansu suna amfani da mitar (ko matsakaici-mitar, ƙarfin-mitar) shigarwar yanzu don saurin zafi saman sassan ƙarfe sannan nan da nan ya huce.

Ka’idar aiki na ƙwanƙwasa-mitar iri ɗaya ce da taurin matsakaici, wanda shine ƙa’idar shigar dumama: wato, ana sanya kayan aikin a cikin inductor, wanda gabaɗaya bututu ne na jan ƙarfe mai matsakaici ko high-frequency alternating current (1000-300000Hz ko sama). Madaidaiciyar filin magnetic yana haifar da tasirin da aka haifar na mitar iri ɗaya a cikin kayan aikin. Rarraba wannan da aka jawo yanzu akan kayan aikin ba daidai bane. Yana da ƙarfi a farfajiya amma yana da rauni a ciki. Yana kusa da 0 zuwa ainihin. Yi amfani da wannan tasirin fata, Za’a iya yin zafi da farfajiyar kayan aikin da sauri, kuma zafin zafin zai tashi zuwa 800-1000 ℃ a cikin ‘yan daƙiƙa kaɗan, yayin da zafin zafin na ainihin zai ƙaru sosai

Koyaya, yayin aikin dumama, rarraba abubuwan da aka jawo a cikin kayan aikin ba daidaituwa bane, kuma tasirin dumama da mitoci daban -daban na yanzu ke samarwa shima daban ne:

1. Yawan kashe-kashe

Mitar yanzu shine 100 ～ 500 kHz

Layer mai taurin kai (1.5 ~ 2mm)

Babban taurin kai

The workpiece ba sauki oxidize

Dearamar nakasawa

Kyakkyawan kyan gani

babban yawan aiki

Ya dace da sassan da ke aiki a ƙarƙashin yanayin gogayya, kamar gabaɗaya ƙananan giyar da shafts (kayan da ake amfani da su sune 45# karfe, 40Cr)

2. Mutuwar tsaka -tsaki

Mitar yanzu ita ce 500 ～ 10000 Hz

Layer mai tauri mai zurfi (3 ~ 5mm)

Ya dace da sassan da ke torsion da nauyin matsin lamba, kamar crankshafts, manyan kayan aiki, injin injin niƙa, da sauransu (Abubuwan da ake amfani da su sune karfe 45, 40Cr, 9Mn2V da ductile

A takaice, babban banbanci tsakanin babban mawuyacin mita da tsaka -tsakin tsaka -tsaki shine bambanci a kauri mai kauri. Ƙin ƙima mai yawa zai iya taurare farfajiya cikin ɗan gajeren lokaci. Tsarin lu’ulu’u yana da kyau sosai kuma naƙasasshen tsari ƙarami ne. Matsakaicin tsaka -tsakin mitar matsakaici ya yi ƙasa da na babban mita. .