Ngabe ikhwalithi ephelele yokuwohloka okuwohloka? Uhlelo lokuphendula lwezinto ezintathu ezinkulu 'ezibulalayo' ludalulwa ngokuphelele! ​

Enqubeni yokukhiqiza imboni ye-wappy, izinkinga zokuphonsa bekulokhu kuyinselelo enkulu kuchwepheshe. Lezi ziphutha azithinti kuphela ikhwalithi yomkhiqizo, kepha futhi zingadala ukulahleka kwezomnotho. Namuhla, sizokwehla ezibangelweni zeziphene ezinhlanu ezivamile zokuphonsa futhi sinikeze ngezixazululo ezisebenzayo.

I-01 ekhipha i-shrinkage cavity

Imbangela ye-shrinkage iyindlela yokuqothula ivolumu ngesikhathi senqubo yokuqina ye-alloy, kanye nokwakheka kwama-pores ngenxa yokuchithwa kwamagesi ku-molten Metal kanye nokukhishwa kwamagesi ngesikhathi sokuqina. Inhlanganisela yalababili iholela kalula ekwakhekeni kwe-shrinkage callities kwindawo yokugcina eqinisayo (njengendawo eshisayo).

Isu Lokuphendula Eqondile

1. Ukungezelelwa kweSayensi nokuXhumazeka

Setha kahle ama-risers (amabhola egolide) esigabeni esishisayo noma endaweni yokugcina yokuqina yokupholisa ukuhlinzeka iziteshi ze-liquid metal shrinkage.

2. Lungiselela uhlelo lokuthulula

Khulisa indawo yesigaba sesigaba sohlelo lokuthulula (Khulisa ububanzi besiteshi sokuphonsa) noma unciphise ibanga lokuthulula (finyeza ubude besiteshi sokuphonsa), bushisele inqubo yokugcwalisa, futhi unciphise isikhathi sokuqina.

3. qinisekisa uketshezi olwanele lwensimbi

Kukhulisa kahle inani lokudla kwensimbi ukuqinisekisa uketshezi olwanele lwensimbi ukunxephezela ukushwabana.

4. Ukulawulwa okuhle kwensimu yokushisa

Setha iphuzu lokupholisa (isiteshi sokupholisa) empandeni yesiteshi sokuphonsa ukusheshisa ukuqina kuleyo ndawo futhi uvikele isakhiwo ukuthi singase siqonde ekuqondeni kwesiteshi sokuphonsa.

5. Lungiselela indlela yokushaja

Lapho uklama i-Strue, gwema umthelela omile wensimbi encibilikisiwe odongeni lwe-cavity futhi usebenzise ama-sprives agobile noma athambekele ukufeza ukugcwaliswa okubushelelezi futhi unciphise ukugcwaliswa komoya.

02 Ubulukhuni Bengaphezulu

Ubulukhuni bendawo yokuphonsa bubangelwa ikakhulukazi ngesimo se-microscopic sendawo ye-cavity kanye nokusabela ngokomzimba noma kwamakhemikhali okungenzeka phakathi kwensimbi kanye ne-cavity impahla (ukunika impahla) emazingeni okushisa aphezulu.

Izinkuthazo ezithile zifaka:

1. Izinhlayiya zezinto zokushumeka zihlangana kakhulu; 2. Inqubo egazingiwe ifudumeza ngokushesha, yenza ukuhwamuka okukhulu kwamanzi; 3 4. Ukushisa ngokweqile kwensimbi ebilisiwe noma izinga lokushisa eliphakeme le-caring isikhunta (indandatho); I-5. Izinga lokushisa lendawo lesikhunta alilingani (liphezulu kakhulu).

Isu Lokuphendula Eqondile

1. Lawula ngokuqinile izinto zokwakha

Khetha izinto ezisezingeni eliphakeme zokushumeka ngosayizi ofanele wezinhlayiya.

2. Imisakaza inqubo egazingiwe

Lawula ngokuqinile ijika eligazingi, ikakhulukazi ngesikhathi sokushisa, okufanele ngabe sihamba kancane futhi sifane, futhi siqede ngokuphelele umswakama kanye negesi. Ngezinto zokwenziwa ezishumekiwe ze-phosphate, kunconywa ukugcina izinga lokushisa elizinzile ngaphakathi kwebanga le-800-900 ℃ futhi uqinisekise isikhathi esanele sokufakelwa.

I-3

Lawula kahle izinga lokushisa lokuncibilika lezinsimbi ukugwema ukugcwala ngokweqile; Lawula kahle izinga lokushisa lesikhunta ngaphambi kokungena esithandweni somlilo.

4. Thuthukisa ingaphezulu le-cavity

Faka ungqimba we-ejenti omanzi kanye ne-ejenti yokuvimbela amazinga aphezulu (anti evuthayo kanye noketshezi olunamathelayo) ngokulinganayo ebusweni be-wax (isikhunta sokutshala imali) ukunciphisa ukusabela kokunamathela phakathi kwensimbi kanye ne-mold cavity.

5. Vikela ukudangala okushisayo kwendawo

Lawula i-shrinkage cavity ukugwema indawo engalingani okubangelwa ukucindezelwa kwe-shrinkace endaweni yezicubu.

03 Ukuqhekeka Ukuqhekeka

Uma kukhulunywa ngokuphosa ukuqhekeka, indlela yalo iyinkimbinkimbi impela, kepha kunezimbangela ezimbili ezivamile zokuqhekeka kokuqhekeka: okubandayo / okushisayo okubangelwa ukuqina okusheshayo, kanye nokuqhekeka okubangelwa ukucindezela okushisa okuphezulu.

1. Ukuqina okusheshayo kuholela ekuqhekekeni okubandayo / okushisayo Lokhu kuhlobene kakhulu nezinto ezifana nesakhiwo se-wax (njengokukhulu okulinganiselwe), ukuthulula ukwakheka kwesistimu (isikhundla nosayizi wesiteshi sokuphonsa), ukugcwaliswa okunganele kokugcwaliswa kwezinto ezishumekiwe ezivimba ukukhipha igesi.

2. Ukuqhekeka okuphezulu kokushisa okushisayo okushisayo

Isu Lokuphendula Eqondile

1. Lungiselela amapharamitha enqubo

Yehlisa izinga lokushisa lensimbi ebilisiwe ngokufanele.

2 Izinto ezikhethiwe ezikhethiwe

Esisekelweni sokuhlangabezana nezidingo zamandla, kufanele kunikezwe kuqala ukusebenzisa izinto ezishukumisayo ngamandla aphansi alinganiselayo, ukuphefumula okuhle kokunwebeka okuhle, kanye nokuphefumula okuhle. Kwesinye isikhathi, izinto zokufaka amandla aphansi ezinamandla empeleni zinganciphisa ukucindezelwa ngokuzithoba "ngokuhoxa".

3. Khetha ngokucophelela ama-alloys

Zama ukugwema ukusebenzisa ama-alloys anokushisa okuphezulu kanye nekhompiyutha empofu (efana ne-nickel chromium alloys kanye ne-cobbolt chromium alloys), ikakhulukazi ekukhokhisweni okunezinhlaka eziyinkimbinkimbi. Khetha ama-alloys nge-plastiki engcono.

4 Ukukhetha ukuklama

Thuthukisa ukwakheka kwe-wax (njengokungeza izinguquko eziyindilinga), yenza kahle ukwakhiwa kohlelo lokuthulula (uqinisekise ukugcwaliswa okubushelelezi, ingcindezi eyanele).

Lapho usubhekane nalezi zingqinamba ezinhlanu ezinkulu, unomuzwa wokuthi umgwaqo wokuphonsa ubakhazikhazi?