Ilimi- Kintai

Maganin zafi shine hanya mai mahimmanci don inganta aikin kayan ƙarfe. Cold jiyya, a matsayin tsawo da kari ga zafi jiyya, taka muhimmiyar rawa wajen inganta taurin, tensile ƙarfi da girma kwanciyar hankali na workpieces. Wannan labarin yafi gabatar da ƙa'idodi na asali, kwararar tsari, kayan aiki masu dacewa da iyakokin aikace-aikacen maganin sanyi.

 

Ainihin ka'idar maganin sanyi

Cold magani (wanda kuma aka sani da zurfin cryogenic magani ko matsananci-ƙananan zafin jiki magani) yana nufin aiwatar da sauri sanyaya da quenched workpiece zuwa wani low zafin jiki na -60 ° C zuwa -80 ° C da kuma kiyaye shi na wani lokaci na lokaci, kyale ragowar austenite don ƙara canzawa zuwa martensite.

 

A lokacin aikin quenching na karfe, saboda iyakancewa a cikin saurin sanyaya ko abun da ke ciki, wasu austenite na iya zama ba gaba ɗaya su canza zuwa martensite ba. Wadannan saura austenites suna cikin yanayin da za'a iya daidaitawa a dakin da zafin jiki kuma suna iya shafar taurin, juriya, da kwanciyar hankali na kayan aikin.

 

Maganin sanyi na iya rage yawan abun ciki na saura austenite. Wannan shi ne saboda a ƙananan yanayin zafi, kwanciyar hankali na austenite yana raguwa, kuma canji na martensite zai iya ci gaba. Wannan canji ba kawai yana ƙara tauri da ƙarfi na kayan ba amma kuma yana haɓaka daidaiton girman kayan aikin.

 

Tsarin tsari na maganin sanyi

Maganin sanyi ba tsari ne mai zaman kansa ba amma hanya ce ta gaba bayan quenching. Takamaiman matakan sune kamar haka:

1) Bayan quenching, da workpiece ya kamata a farko sanyaya zuwa dakin zafin jiki don kauce wa shiga kai tsaye a cikin sanyi matakin jiyya, wanda zai iya haifar da wuce kima na ciki danniya ko fatattaka.

2) Dole ne a yi maganin sanyi da wuri-wuri bayan an kashe shi. Tsawaita zama a dakin da zafin jiki na iya haifar da kwanciyar hankali na austenite, don haka rage tasirin maganin sanyi.

3) Sanya kayan aikin a cikin na'urar maganin sanyi kuma sanyaya shi zuwa ƙananan zafin jiki na -60 ° C zuwa -80 ° C. Tsarin sanyaya yakamata ya zama iri ɗaya don hana nakasawa ko tattarawar damuwa ta hanyar gradients zafin jiki.

 

4) Da zarar zafin jiki na workpiece ta giciye-section ne uniform, kula da shi na wani lokaci na lokaci don tabbatar da cikakken canji na saura austenite.

5) Bayan an kammala maganin sanyi, ya kamata a cire kayan aikin kuma a bar shi ya koma yanayin zafin jiki a cikin iska. Idan ya cancanta, ana iya yin zafi mai zafi don kawar da damuwa na ciki.

 

A lokacin duk tsarin maganin sanyi, madaidaicin kula da zafin jiki da tsawon lokacin adana zafi sune mahimman sigogi waɗanda ke shafar tasirin maganin sanyi kuma yakamata a inganta su bisa takamaiman kayan aiki da girman aikin.

 

Abubuwan da ake Aiwatar da su da Iyalin Aikace-aikacen

Cold magani ne yafi zartar da high gami karfe, kayan aiki karfe, mutu karfe da wasu musamman gami kayan, musamman ma wadanda tare da babban abun ciki na riƙe austenite da kuma yiwuwa ga martensitic canji a low yanayin zafi.

1) Madaidaicin kayan aikin yankan: irin su reamers, milling cutters, drills, da dai sauransu

2) Kayan aikin aunawa da abubuwa masu aunawa: irin su tubalan ma'auni, ma'auni, samfuri, da dai sauransu. Maganin sanyi na iya inganta yanayin kwanciyar hankali da tabbatar da daidaiton ma'auni.

3) Babban madaidaicin gears da abubuwan watsawa: galibi ana amfani da su a cikin masana'antar kera motoci, sararin samaniya da madaidaicin injuna, yana iya haɓaka ƙarfin gajiya da juriya ga nakasu.

4) Magnetic kayan: kamar Magnetic karfe. Maganin sanyi yana taimakawa daidaita abubuwan magnetic na kayan maganadisu da haɓaka daidaiton aikin maganadisu.

Bugu da kari, wasu karafa da ba na tafe ba da kayan hade kuma na iya inganta aiki ta hanyar maganin sanyi, amma aikace-aikacen ba kasafai bane.

 

Kayan aiki da Fasahar Maɓalli don Maganin Sanyi

Maganin sanyi yana buƙatar ƙwararrun kayan aiki masu ƙarancin zafin jiki, kamar na'urorin firiji da tsarin sanyaya ruwa nitrogen. Lokacin zabar kayan aiki, abubuwa kamar ƙimar sanyaya, daidaiton zafin jiki, da daidaiton zafin jiki yakamata a yi la'akari da su. Matsakaicin saurin sanyaya farashin na iya haifar da fasa na ciki a cikin kayan aikin, yayin da yawan jinkirin wuce gona da iri na iya rage ingancin sarrafawa. Don haka, mahimman fasahohin sun haɗa da:

1) Tabbatar da rage yawan zafin jiki iri ɗaya a duk sassan aikin aikin don gujewa yin sanyi na gida ko fiye da zafi.

2) Haɓaka yanayin yanayin sanyi mai ma'ana, lokutan riƙewa, da ƙimar dumama bisa kaddarorin kayan.

3) Matsalolin ciki da aka haifar yayin maganin sanyi za'a iya kawar da su ta hanyar matakan zafin jiki na gaba don hana nakasar aiki ko fatattaka.

 

Amfanin Amfanin Maganin Sanyi

A cikin ainihin samarwa, tsarin maganin sanyi zai iya kawo fa'idodi masu yawa.

1) Taurin, ƙarfi, da juriya na aikin aikin an inganta su sosai, musamman a cikin yanayin aiki mai ɗaukar nauyi da manyan kayan aiki.

2) Don daidaitattun sassa da kayan aikin aunawa, maganin sanyi na iya rage sauye-sauyen girma yayin amfani da tsawaita rayuwar sabis.

3) Ta hanyar rage ragowar austenite, tsarin kayan aiki ya zama mafi daidaituwa, kuma ana rage yawan canjin aiki.

4) Tsarin maganin sanyi ba ya buƙatar hadaddun hanyoyin sadarwa na sinadarai, yana da sauƙi don aiki, kuma baya samar da abubuwa masu cutarwa, daidai da yanayin zamani na masana'antu na kore.

 

A matsayin muhimmin tsari na maganin zafi mai zuwa, maganin sanyi yana taka rawar da ba za a iya maye gurbinsa ba kuma yana taka muhimmiyar rawa wajen inganta aikin aiki, daidaita girman workpiece, da haɓaka karko. Ta hanyar kimiyya da daidaitaccen aikace-aikacen maganin sanyi, masana'antun masana'antu ba za su iya haɓaka ingancin samfur kawai ba har ma su rage farashin samarwa da ƙarfafa gasa kasuwa.

 

Ƙungiyar Vigor tana da ƙwarewa sama da shekaru 20 a fannin yin siminti, yin ƙira, yin sanyi da kuma bayan an yi mata magani, da kuma tsarin samar da kayayyaki masu ƙarfi. Idan akwai wani abu da za mu iya taimakawa ko kuma duk wani ɓangare da kake son ƙirƙirarwa, da fatan za a tuntuɓe mu a info@castings-forging.om