Bangaren lu'u-lu'u shine jikin aiki na tsinken lu'u-lu'u. Shugaban yankan tsinken lu'u-lu'u ya ƙunshi lu'u-lu'u da ɗaure matrix. Lu'u-lu'u wani abu ne mai wuyar gaske wanda ke aiki azaman yankewa. Matrix mai ɗaure yana taka rawar gyara lu'u-lu'u. Yana kunshe ne da sauki karfe foda ko karfe gami foda Abun ciki, daban-daban abun da ke ciki ake kira formulas, da kuma dabara sun bambanta da lu'u-lu'u bisa ga daban-daban amfani.

1. Zaɓin girman ƙwayar lu'u-lu'u

Lokacin da lu'u-lu'u barbashi size ne m da guda barbashi size, da saw ruwa shugaban ne kaifi da sawing yadda ya dace ne high, amma lankwasawa ƙarfi na lu'u-lu'u agglomeration rage-rage; a lokacin da lu'u-lu'u barbashi size ne lafiya ko m da lafiya barbashi masu girma dabam suna gauraye, da saw ruwa shugaban yana da high karko, amma kasa m. Yin la'akari da abubuwan da ke sama, ya fi dacewa a zaɓi girman ƙwayar lu'u-lu'u na raga 50/60.

2. Zaɓin ƙaddamarwar rarraba lu'u-lu'u

A cikin wani takamaiman kewayon, lokacin da maida hankali na lu'u-lu'u ya canza daga ƙasa zuwa babba, ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun tsintsiya za su ragu a hankali, yayin da rayuwar sabis za ta tsawaita sannu a hankali; amma idan maida hankali ya yi yawa, tsintsiya za ta zama baƙar fata. Kuma yin amfani da ƙananan maida hankali, ƙananan ƙwayar ƙwayar cuta, za a inganta ingantaccen aiki. Yin amfani da ayyuka daban-daban na kowane ɓangare na mai yankan kai a lokacin sawing, ana amfani da ƙididdiga daban-daban (wato, ana iya amfani da ƙananan ƙaddamarwa a cikin tsakiyar Layer a cikin tsarin Layer uku ko fiye), kuma an kafa tsagi na tsakiya akan. mai yankan kai a lokacin aikin sawing, wanda yana da wani tasiri. Yana da amfani don hana tsattsauran ra'ayi daga juyawa, don haka inganta ingancin aikin dutse.

3. Zaɓin ƙarfin lu'u-lu'u

Ƙarfin lu'u-lu'u alama ce mai mahimmanci don tabbatar da aikin yankewa. Ƙarfin ƙarfi mai ƙarfi zai sa crystal ba sauƙin karya ba, za a goge hatsin abrasive yayin amfani, kuma kaifi zai ragu, yana haifar da lalacewar aikin kayan aiki; lokacin da ƙarfin lu'u-lu'u bai isa ba, za a iya karye shi cikin sauƙi bayan an shafa shi, kuma yana da wuya a ɗauki nauyi mai nauyi na yanke. Sabili da haka, ya kamata a zaɓi ƙarfin a 130-140N

4. Zaɓin lokaci mai ɗaure

Aiki na saw ruwa ba ya dogara ne kawai a kan lu'u-lu'u, amma a kan gaba daya yi na composite abu na lu'u-lu'u saw ruwa da abun yanka shugaban kafa ta dace hadin gwiwa na dauri. Don kayan dutse masu laushi irin su marmara, ana buƙatar kayan aikin injiniya na shugaban mai yankewa ya zama ƙananan ƙananan, kuma ana iya amfani da maƙallan tushen jan karfe. Duk da haka, zafin jiki mai zafi na mai ɗaure tushen jan ƙarfe yana da ƙasa, ƙarfi da taurin suna da ƙasa, ƙarfin yana da girma, kuma ƙarfin haɗin gwiwa tare da lu'u-lu'u yana da ƙasa. Lokacin da aka ƙara tungsten carbide (WC), ana amfani da WC ko W2C azaman ƙarfe na kwarangwal, tare da adadin da ya dace na cobalt don inganta ƙarfi, taurin da halayen haɗin kai, da ƙaramin adadin Cu, Sn, Zn da sauran ƙananan ƙarfe tare da ƙananan ƙarfe. Ana ƙara ma'anar narkewa da ƙananan taurin don haɗin gwiwa. Girman barbashi na babban kayan aikin yakamata ya zama mafi kyawu fiye da raga 200, kuma girman barbashi na abubuwan da aka ƙara yakamata ya zama mafi kyawu fiye da raga 300.

5. Zaɓin tsarin sintiri

Yayin da yawan zafin jiki ya karu, digiri na densification na gawa yana ƙaruwa, kuma ƙarfin juzu'i yana ƙaruwa, kuma tare da tsawo na lokacin riƙewa, ƙarfin daɗaɗɗen gawa mara kyau da lu'u-lu'u agglomerates ya fara karuwa sannan kuma ya ragu. Sintering a 800 ° C don 120s don saduwa da bukatun aiki.