Ukugaya kuyindlela evamile yokucubungula ekukhiqizeni.Lapho uthenga ama-drill bits, ama-drill bits afika ngezinto ezihlukene nemibala ehlukene.Ngakho isiza kanjani imibala ehlukene yama-drill bits?Ingabe umbala uhlobene nekhwalithi ye-drill bit?Iyiphi i-drill bit yombala engcono ukuyithenga?
Okokuqala, sidinga ukucacisa ukuthi ikhwalithi ye-drill bit ayikwazi ukubhekwa nje ngombala wayo.Abukho ubuhlobo obuqondile nobungenakugwemeka phakathi kombala nekhwalithi.Imibala ehlukene yama-drill bits ibangelwa ikakhulukazi amasu okucubungula ahlukene.Yebo, singenza isinqumo esinzima esisuselwe kumbala, kodwa ama-drill bits anamuhla azocubungula imibala yawo ukuze afinyelele ukubonakala kwezingcezu zokubhola zekhwalithi ephezulu.
Ngakho-ke yimuphi umehluko phakathi kwama-drill bits emibala ehlukene?
Izingcezu zensimbi zokubhola ezinesivinini esiphezulu ezisezingeni eliphezulu zivame ukutholakala ezimhlophe.Yiqiniso, i-drill bit egoqwe ingabuye yenziwe ibe mhlophe ngokugaya kahle indilinga yangaphandle.Okubenza babe yikhwalithi ephezulu akuyona nje impahla ngokwayo, kodwa futhi nokulawulwa kwekhwalithi ngesikhathi sokugaya.Iqinile impela futhi ngeke kube nokusha endaweni yamathuluzi.Ezimnyama ziyi-Nitride drill bits.Kuyindlela yamakhemikhali ebeka ithuluzi eliqediwe enhlanganisela ye-ammonia nomhwamuko wamanzi futhi lenze ukwelashwa kokugcina ukushisa ku-540 ~ 560C ° ukuze kuthuthukiswe ukuqina kwethuluzi.Iningi lama-black drill bits okwamanje asemakethe anombala omnyama kuphela (ukuze kuvalwe ukusha noma isikhumba esimnyama ebusweni bethuluzi), kodwa umphumela wangempela wokusebenzisa awuzange uthuthukiswe ngempumelelo.
Kunezinqubo ezi-3 zokukhiqiza ama-drill bits.Ukugoqa okumnyama kubi kakhulu.Ezimhlophe zinemiphetho ecacile futhi epholishiwe.Njengoba i-oxidation ephezulu yokushisa ingadingeki, isakhiwo sokusanhlamvu sensimbi ngeke sibhujiswe, singasetshenziselwa ukumba ama-workpieces ngobulukhuni obuphakeme kancane.Ama-drill bits aphuzi aqukethe i-cobalt, okuwumthetho ongashiwongo embonini ye-drill bit.Amadayimane aqukethe i-cobalt amhlophe ekuqaleni, kodwa kamuva aguqulwa abe nsundu ngokuphuzi (okuvame ukubizwa ngokuthi inhlaka).Zingamanye ahamba phambili okwamanje asatshalaliswa.I-M35 (Co 5%) iphinde ibe nombala wegolide obizwa ngokuthi i-titanium-plated drill bit, ehlukaniswe ngokwemihlobiso yokuhlobisa kanye ne-industrial coating.I-plating yokuhlobisa ayinhle, ibukeka kahle nje.Umphumela we-electroplating yezimboni muhle kakhulu.Ukuqina bungafinyelela ku-HRC78, ephakeme kunobulukhuni be-cobalt drill (HRC54°).
Indlela yokukhetha i-drill bit
Njengoba umbala ungewona umbandela wokwahlulela ikhwalithi ye-drill bit, ungakhetha kanjani i-drill bit?
Ngokwesipiliyoni, uma sikhuluma nje, izinsimbi zokubhola ezimhlophe ngokuvamile ziyizinsimbi zokubhola ezinesivinini esiphezulu futhi kufanele zibe nekhwalithi engcono kakhulu.Ezegolide zine-titanium nitride coating futhi ngokuvamile zingcono kakhulu noma zimbi kakhulu futhi zingakhohlisa abantu.Izinga lokuba mnyama nalo liyahlukahluka.Abanye basebenzisa insimbi yethuluzi lekhabhoni yekhwalithi ephansi, okulula ukuyibamba nokugqwala, ngakho idinga ukwenziwa mnyama.
Kukhona izimpawu zokuhweba kanye nokubekezelela ububanzi ku-shank ye-drill bit, ngokuvamile ecacile, futhi ikhwalithi ye-laser kanye ne-electro-etching akufanele ibe yimbi kakhulu.Uma izinhlamvu ezibunjiwe zinemiphetho eyi-convex, kubonisa ukuthi i-drill bit ingeyekhwalithi embi, ngoba uhlaka lwe-convex lwezinhlamvu luzobangela ukunemba kwe-drill bit clamping ukuthi yehluleke ukuhlangabezana nezimfuneko.Unqenqema lwegama luxhunywe kahle endaweni ye-cylindrical ye-workpiece, futhi i-drill bit enomkhawulo ocacile wegama ikhwalithi enhle.Kufanele ubheke i-drill bit enomkhawulo omuhle wokusika ekugcineni.Ukubhola okugcwele phansi kunemiphetho emihle kakhulu yokusika futhi kuhlangabezana nezidingo zezindawo ze-helix, kuyilapho ukubhoboza okusezingeni eliphansi kunezindawo ezingenamandla zokungena.
Isikhathi sokuthumela: Oct-07-2023