Ukunqoba Ukuwa Nokuguquka Kweshubhu Elincane: Ukulungiselelwa Kokusika Nge-Nitrogen Enengcindezi Ephezulu Ne-Pulse Ezimbonini Zensimbi Zefenisha

Ezimayini zokukhiqiza ifenisha yensimbi, izigxobo zokuvikela, kanye nezindawo zokucubungula amashubhu amancane aseNingizimu-mpumalanga ye-Asia, ukusetshenziswa kwamashubhu anezindonga ezincane (ngokuvamile okubhekisela kumashubhu ensimbi anogqinsi lwodonga olungaphansi kuka-1 mm) kuphezulu kakhulu. Nokho, ochwepheshe abaningi abasebenzisa imishini yokusika amashubhu nge-laser bavame ukuhlangabezana nenkinga eqinile yekhwalithi: amashubhu anezindonga ezincane asengozini enkulu yokuwa komphetho wokusika, ukuguquka komphetho, noma ukuthamba kwendawo ngesikhathi sokusika. Lokhu akugcini nje ngokuholela emagejini amaningi okuhlanganisa kodwa futhi kubeka engcupheni ngqo amandla esakhiwo sonke semikhiqizo eqediwe.

Ukuze kunqotshwe ngempumelelo le nselele yokucubungula, umuntu kufanele aqonde izici ze-thermodynamic zamashubhu anezindonga ezincane:

: Ngenxa yokuthi amashubhu anezindonga ezincane anezindonga ezincane kakhulu futhi anamandla okugcina ukushisa aphansi, inani elikhulu lokushisa elikhiqizwa ukusikwa kwe-laser okuqhubekayo kwendabuko alikwazi ukuhanjiswa futhi kukhiswe ngesikhathi esifanele. Lokhu kubangela ukuthi izinga lokushisa lendawo emaphethelweni okusikwa lidlule ngokushesha indawo yokuncibilika, kuthambise impahla.

: Izingcindezi zegesi ezijwayelekile zehluleka ukunikeza amandla anele okupholisa nokususa amanyala ngaphansi kwamazinga okushisa aphezulu esikhashana, okwenza imiphetho yokusikwa ithambekele ekuweni ngaphakathi ngenkathi impahla isesimweni sokuthambisa.

Ukuze kuqedwe ngokuphelele izinkinga zokuhlanekezela emashubhu anezindonga ezincane, abasebenzi kufanele bayeke umqondo ojwayelekile wokusika ngamandla aphelele ngokuqhubekayo futhi basebenzise ukulawula okucolisisiwe kwe-pulse kanye namasu okupholisa ngengcindezi ephezulu:

: Shintsha imodi yokuphuma kwe-laser isuke ekuqhubekeni iye ekusikeni nge-pulse. Ngokuhlela ngokucophelela ububanzi be-pulse (0.1–0.5 ms) namaza (1000–3000 Hz), i-laser ikhipha umphumela ophazamisekayo wefrikhwensi ephezulu, inikeza ichibi elincibilikisiwe izikhathi zokupholisa eziphazamisekayo futhi yehlise kakhulu ukufakwa kokushisa emthonjeni.

: Kanyekanye nokuphuma kwe-pulse, kufanele kufakwe i-nitrogen enengcindezi ephezulu engu-12–18 bar ukuze kukhishwe ngokushesha futhi kwehliswe izinga lokushisa. Umoya ophuma ngengcindezi ephezulu awukhiphi nje ngokushesha inani elincane le-slag kodwa futhi wakha ukupholisa okusebenzayo kanye nokubumba imiphetho esikiwe.

Ngaphandle kokuthuthukisa amapharamitha e-pulse kanye nengcindezi yegesi ohlangothini lwesoftware, izindawo zokusebenza kufanele zenze le mininingwane elandelayo yokusekela okungeziwe ngesikhathi sokukhiqiza kwangempela:

: Ngesikhathi sokucutshungulwa ngezikhathi eziningi kwamashubhu amancane kakhulu (njengamapayipi anobukhulu obuseduze noma ngaphansi kuka-0.8 mm), izingqimba zokwesekwa zangaphakathi ezenzelwe ukusiza ezenziwe nge-aluminium noma nge-nylon zingafakwa ngaphakathi endaweni yokubamba ye-chuck uma kudingeka ukuze kuvinjelwe ukucindezelwa kodonga lwangaphakathi okubangelwa ukushaywa komfutho wegesi okusheshayo.

: Ukusika amashubhu anodonga oluncane kudinga ukuminyana kwamandla okuphezulu kakhulu endaweni yokugxila yokukhanya. Ngaphambi kokuqala kwansuku zonke, udoti wangaphandle ongaphakathi emgodini wokuphehla kufanele ususwe ngokucophelela ukuze kuqinisekiswe ukugxila okuqondile okungu-100% kwamandla e-laser ephuma nge-pulse, ukuvimbela ukuhlanekezela okushisayo kwendawo okubangelwa izinsalela ezincane zokuphehla eziphambukisa ukuhamba komoya.

Ngokusebenzisa le ndlela ehlanganisiwe "yokusika nge-pulse ukunciphisa ukushisa kuhlangene nokupholisa ngokushesha nge-nitrogen enengcindezi ephezulu," izinkampani zokukhiqiza ifenisha yensimbi namashubhu alula eNingizimu-mpumalanga ye-Asia zingaxazulula ngokuphelele inkinga ehlala ihlupha yokuwa nokuhlanekezela kwamashubhu anezindonga ezincane, zikhuphule kakhulu izinga lokuvunwa kobukhulu bemikhiqizo yenqwaba.