Simintin saka hannun jari, wanda kuma aka fi sani da simintin hasarar kakin zuma, wani nau'in kakin zuma ne da aka yi da kakin zuma da za a jefa shi cikin sassa, sannan kuma ana lullube shi da laka, wanda shine laka. Bayan bushewar yumbu, narke ƙwayar kakin zuma na ciki a cikin ruwan zafi. Ana fitar da yumbun yumbun da aka narkar da kakin zuma a gasa shi a cikin injin tukwane. Da zarar an gasa shi. Gabaɗaya, lokacin yin gyare-gyaren laka, ana barin ƙofar, sannan a zuba narkakken ƙarfe a cikin ƙofar. Bayan sanyaya, ana yin sassan ƙarfe da ake buƙata.

Zamanin da suka gabata na jefa jari:

Mahimman kalmomi: cin lokaci da tsada

Hakanan ana kiran simintin saka hannun jari a simintin kakin zuma. Hanyar asarar kakin zuma a kasar Sin ta samo asali ne daga lokacin bazara da lokacin kaka kuma yana da dogon tarihi.

Simintin kakin hasara wani nau'in kakin zuma ne da aka yi da kakin zuma da za a jefa shi cikin sassa, sa'an nan kuma a yi amfani da ƙirar kakin zuma da laka, wanda shine tsarin laka. Bayan bushewar yumbu, narke ƙwayar kakin zuma na ciki a cikin ruwan zafi. Ana fitar da yumbun yumbun da aka narkar da kakin zuma a gasa shi a cikin injin tukwane.

An gabatar da matakan simintin saka hannun jari don firinta na 3D a ƙasa.

Matakai takwas na 3D bugu simintin saka jari:

1. CAD Modeling, 3D Printing Lost Foam

Fayilolin dijital na narkakkar simintin simintin gyare-gyare an tsara su ta amfani da software na CAD, sannan a fitar da su cikin. Tsarin STL kuma an buga su ta amfani da firinta na 3D (an ba da shawarar fasahar SLA don firinta na 3D). Tsarin bugawa yawanci yana ɗaukar sa'o'i kaɗan kawai.

2. Bincika ko akwai ramuka a cikin narkakkar simintin gyaran kafa.

Ana yin gyaran fuska da sauran ayyukan sarrafawa a kan ƙirar 3D da aka buga don cire lamination na saman. Sa'an nan kuma bincika a hankali ko samfurin yana da madauki ko fasa.

3. Shafi saman

Lokacin da aka aika samfurin zuwa tushen, an fara rufe saman samfurin da yumbu slurry. Ya kamata a haɗa Layer slurry a kusa tare da ƙirar simintin saka hannun jari, kuma ingancin layin slurry na farko zai shafi ingancin simintin ƙarshe kai tsaye.

4. Harsashi

Bayan yumbu slurry aka mai rufi, da waje Layer na yumbu slurry shi ne dankowa yashi. Bayan bushewa, maimaita matakan rufewa da yashi mai liƙa har sai harsashi ya kai kauri da ake so.

5. Gasasu da tsaftacewa

Lokacin da harsashi ya bushe, ana saka shi a cikin tanderun kuma a ƙone shi har sai an ƙone duk samfuran simintin narke a ciki. A wannan lokacin, harsashi zai zama yumbu gaba ɗaya saboda dumama. Bayan an cire shi daga cikin tanderun, ya kamata a tsabtace cikin tanderun da kyau sosai ta hanyar wankewa, sa'an nan kuma bushe da preheated.

6. Yin jifa

Ta hanyar jujjuyawa, matsa lamba, tsotsawar iska da ƙarfi na centrifugal, narkakken ruwa na ƙarfe yana cika da kwandon da babu komai sannan a sanyaya.

7. Rushewa

Bayan an kwantar da ƙarfen ruwa gaba ɗaya kuma an kafa shi, harsashin yumbu a wajen ƙarfen ana tsaftace shi ta hanyar girgizar injin, tsaftacewa da sinadarai ko zubar da ruwa.

8. Bayan aiwatarwa

Hakanan ana iya auna daidaiton girma, yawa da sauran kaddarorin injina na ƙirar ƙarfe ta hanyar jiyya ko ƙarin machining.

Ana iya amfani da firinta na SLA 3D na SHDM don yin gyare-gyaren filastik ta amfani da kayan da ba a iya jurewa da zafin jiki ba. Yana da matukar dacewa don simintin sassa ta hanyar asarar kakin zuma.

Bayan an kammala bugu na filastik filastik, za a cire ragowar foda, sannan za a yi amfani da infiltration na kakin zuma don tabbatar da cewa an rufe gyare-gyaren filastik da kuma tsabta don inganta ingancin sassan simintin zuba jari.

Tsarin jiyya na gaba ya kasance daidai da hanyar masana'anta na gargajiya: na farko, an rufe murfin yumbura a saman filastik filastik, sa'an nan kuma an saka shi a cikin kiln.

Lokacin da zafin jiki ya wuce 700 C, filastik filastik yana ƙone gaba ɗaya ba tare da wani abu ba, wanda kuma shine asalin sunan hanyar asarar kakin zuma.

3D bugu na iya gane sosai hadaddun ƙira, da kuma sanya zuba jari simintin gyaran kafa da sauri, sauƙi da kuma tattalin arziki. Ana amfani da shi sosai a cikin motoci, kayan ado, masana'anta da sauran masana'antu.