Hot Rolled, Sanyi Rolled & Pickled

Mirgina mai zafi

Motsi mai zafi yana da alaƙa da mirgina sanyi, wanda ke jujjuya ƙasa da zazzabi na recrystallis, yayin da zafi mai zafi yana jujjuyawa sama da zafin sake recrystallis.

Amfani:

Za a iya lalata simintin gyare-gyaren ƙarfe na ƙarfe, tsaftace hatsin ƙarfe, da kawar da lahani na microstructural, don haka ƙungiyar ƙarfe ta kasance mai yawa, kayan aikin injiniya sun inganta.Wannan haɓakawa ya fi dacewa a cikin hanyar mirgina, ta yadda karfe ya daina isotropic zuwa wani ɗan lokaci;kumfa, fasa da sako-sako da aka samu yayin simintin gyare-gyare kuma ana iya haɗa su tare a ƙarƙashin matsanancin zafin jiki da matsa lamba.

Rashin hasara:

1. Bayan zafi birgima, da wadanda ba karfe inclusions a cikin karfe (yafi sulphides da oxides, da silicates) an guga man a cikin bakin ciki zanen gado da delamination (lamination) faruwa.Delamination ƙwarai deteriorates kaddarorin karfe a tashin hankali tare da kauri shugabanci, kuma akwai hadarin interlaminar tearing a lokacin weld shrinkage.Matsalolin gida da ke haifar da raguwar walda sukan kai sau da yawa adadin ma'aunin abin da ake samu kuma suna da girma fiye da waɗanda aka jawo ta hanyar lodawa.

2. Matsalolin da suka rage sakamakon rashin daidaituwar sanyaya.Matsalolin da suka rage sune matsalolin daidaita kai na ciki idan babu ƙarfin waje, sassa daban-daban na ƙarfe mai zafi suna da irin wannan damuwa, gabaɗaya girman ɓangaren ɓangaren ƙarfe, mafi girman damuwa.Ko da yake ragowar matsalolin suna daidaita kansu, har yanzu suna da tasiri akan aikin memba na karfe a ƙarƙashin sojojin waje.Irin su nakasawa, kwanciyar hankali, juriya ga gajiya da sauran al'amura na iya yin mummunan tasiri.

3. Abubuwan ƙarfe masu zafi da aka yi birgima ba su da sauƙin sarrafawa dangane da kauri da faɗin gefen.Mun saba da thermal fadada da ƙanƙancewa, kamar yadda farkon zafi birgima fitar ko da tsawon da kauri ne har zuwa misali, karshe sanyaya zai bayyana wani mummunan bambanci, da fadi da korau gefen nisa, da thicker da wasan kwaikwayon. na mafi bayyananne.Wannan shine dalilin da ya sa ba shi yiwuwa ya zama daidai game da nisa, kauri, tsayi, kusurwa da layin gefen babban karfe.

 

Sanyi mirgina

Mirgina ƙasa da recrystallization zazzabi ana kiranta sanyi mirgina, gabaɗaya ta yin amfani da zafi birgima karfe coils a matsayin albarkatun kasa, bayan pickling don cire hadawan abu da iskar shaka fata ga sanyi ci gaba da mirgina, ƙãre samfurin da aka yi birgima wuya nada, saboda ci gaba da sanyi nakasawa lalacewa ta hanyar sanyi aiki hardening birgima. Ƙarfin murɗa mai wuya, taurin, tauri da alamun filastik sun ragu, don haka aikin hatimi zai lalace, za a iya amfani da shi don sauƙaƙan nakasu na sassa.Ciwon sanyi gabaɗaya ana gogewa.

Za a iya amfani da coils ɗin da aka yi birgima azaman ɗanyen abu a cikin tsire-tsire masu ɗumbin ɗumbin tsoma, kamar yadda raka'o'in galvanizing masu zafi suna sanye da layukan da za a cire su.

Naɗaɗɗen naɗaɗɗen coils gabaɗaya suna auna tan 20-40 kuma ana ci gaba da jujjuya coils ɗin a yanayin zafin ɗaki a kan naɗaɗɗen naɗaɗɗen naɗaɗɗen naɗa.

Halayen samfur: Saboda ba a cire shi ba, taurinsa yana da girma sosai kuma injin ɗinsa yana da rauni sosai, don haka kawai ana iya lanƙwasa ta cikin sauƙi mai sauƙi ƙasa da digiri 90 (daidai da juzu'in nadi).A cikin mafi sauƙi, mirgina sanyi shine tsarin jujjuyawa akan tushen juzu'i mai zafi, wanda galibi tsari ne na juyawa mai zafi - pickling - phosphating - saponification - mirgina sanyi.

Ana sarrafa Cold-rolled daga takarda mai zafi a dakin da zafin jiki, ko da yake a cikin tsari saboda mirgina kuma zai sa farantin karfe ya dumi, amma duk da haka ana kiran shi sanyi.Kamar yadda zafi ya yi birgima bayan ci gaba da nakasar sanyi da sanyi ya birgima a cikin injiniyoyin matalauta, da wuya sosai, don haka dole ne a buge shi don maido da kaddarorinsa na inji, ba annealing da ake kira rolling hard volume.Ana amfani da Rolled hard Rolls gabaɗaya don yin ba tare da lanƙwasa ba, samfuran miƙewa, 1.0 ƙasa da kauri na birgima mai wuya sa'a lankwasawa a ɓangarorin biyu ko ɓangarorin huɗu.

A cikin tsarin jujjuya sanyi dole ne a yi amfani da mai mai sanyi, fa'idodin amfani da mai mai sanyi sune:

1.Effectively rage coefficient na gogayya, samar da daidai mirgina karfi, mirgina low makamashi amfani, don samun m mirgina sigogi;

2. Ba high surface haske, mirgina jinkiri kauri uniform;

3.Good kwantar da hankali sakamako, zai iya sauri dauke da mirgina zafi, don kare Rolls da mirgina sassa.Kyakkyawan aikin annealing, ba zai haifar da konewar mai ba;

4.Has wani gajeren lokaci anti-tsatsa yi, iya samar da wucin gadi anti-tsatsa kariya ga mirgina sassa.

Bambanci tsakanin sanyi-birgima da zafi-birgima:

1.Ctsohon birgima kafa karfe damar gida buckling na giciye-sashe domin da load-hali ikon na mashaya bayan buckling iya cikakken amfani;yayin da ɓangarorin da aka yi birgima masu zafi ba sa ƙyale buckling na sashin giciye ya faru.

2. HSassan ot-bidi da sanyi-birgima sassa na karfe saura danniya haifar da daban-daban dalilai, don haka rarraba a kan giciye-sashe ne ma daban-daban.Rarraba ragowar damuwa a cikin sassan sassan sassan bakin ciki mai sanyi mai sanyi shine nau'i na lankwasa, yayin da rarraba ragowar damuwa a cikin sassan sassan da aka yi da zafi ko welded sassan shine nau'in fim.

3.Tya 'yantar da ƙumburi na sassa masu zafi ya fi na sassan sanyi, don haka juriya na sassan zafi ya fi na sassan sanyi.