Hanyar don farfajiya na farfajiya

Kashe farfajiya na ƙirƙira shine hanyar jiyya mai zafi wanda saman kayan aikin yana da sauri zuwa zafin zafin sannan kuma a sanyaya cikin hanzari, don kawai saman farfajiyar zai iya samun tsarin da aka kashe, yayin da babban ɓangaren har yanzu yana kula da tsarin kafin a kashe. Yawanci ana amfani da su shine induction surface surface quenching da harshen wuta dumama farfajiya. Surface hardening gabaɗaya matsakaici ne na ƙarfe carbon da matsakaiciyar ƙirar ƙarfe na ƙarfe.

Ƙarfafawa ta ƙarfafawa yana amfani da ƙa’idar shigar da electromagnetic don haifar da babban eddy na yanzu akan farfajiyar aikin ta hanyar canzawa na yanzu, ta yadda saman ƙirƙira ya yi zafi da sauri, yayin da ainihin ba shi da zafi.

Halayen induction surface surface quenching: bayan kashewa, hatsin martensite ana tsaftace shi, kuma taurin saman shine 2 ~ 3HRC sama da na talakawa. Layer na farfajiya yana da babban matsi na matsi, wanda ke taimakawa inganta ƙarfin gajiya; ba abu ne mai sauƙi ba don samar da nakasa da lalata decarburization; yana da sauƙin gane injiniyoyi da sarrafa kansa, kuma ya dace da samar da taro. Bayan shigar da dumama da kashewa, don rage damuwar damuwa da rage karyewa, ya zama dole a yi ƙarancin zafin zafin a 170 ~ 200 ° C.

Ƙunƙarar wuta mai ƙona wuta wani tsari ne wanda farfajiyar gafara yana da zafi mai sauri zuwa zafin zafin lokaci na lokaci sama da yanayin canjin yanayi ta amfani da harshen wuta (zafin da ya kai 3100 ~ 3200 ° C) yana ƙonewa da iskar oxygen, sannan kashewa da sanyaya .

Ana aiwatar da ƙaramin zafin jiki nan da nan bayan an kashe shi, ko kuma ana amfani da zafin ɓarna na ciki na ƙirƙira don zafin kai. Wannan hanyar za ta iya samun zurfin zurfin 2-6 mm, tare da kayan aiki mai sauƙi da ƙarancin farashi, kuma ya dace da ƙira ɗaya ko ƙaramin ƙungiya.