Imeko yeCarbide Nozzle yeSicelo sokuLungiselela iSicelo kunye noKuqondwa kweXabiso

Imilomo yeCarbide zizinto ezichanekileyo ezenziwe nge-sintering hard carbide materials (ikakhulukazi i-tungsten carbide, i-WC) enezibophelelo zetsimbi (ezifana ne-cobalt, i-Co). Ukuqhayisa ngobulukhuni beVickers obungaphezulu kwe-1300 HV, ukuxhathisa okugqwesileyo kokunxiba (amaxesha angama-10-20 aphezulu kunentsimbi enesantya esiphezulu), kunye nozinzo olomeleleyo lwe-thermal, baye baba ngamalungu angundoqo angenakubuyiselwa kumacandelo afana nokusetyenzwa kwemizi-mveliso, amandla kunye nombane. Isitshixo sokwandisa ixabiso lesicelo sabo sixhomekeke kuhlobo oluchanekileyo lwe-scenario-ukudibanisa uhlobo lwe-nozzle olufanelekileyo kwiimeko ezithile zokusebenza ukulinganisa ukusebenza, ukuqina, kunye neendleko-ukusebenza.

Kwiimeko ze-abrasive jet processing, kubandakanywa i-sandblasting yokususwa kwe-rust kunye ne-high-pressure water jet cut of metal plates, udonga lwangaphakathi lwe-nozzle luchaphazeleka ngokuqhubekayo kwaye lugxothwe yi-speed-speed (ukuya kwi-800 m / s) amasuntswana abrasive (umzekelo, i-alumina, i-silicon carbide). Kule nto, i-fine-grain carbide nozzles (kunye ne-tungsten carbide ubukhulu bengqolowa ye-0.5-1μm) iyona nto ikhethekileyo. I-microstructure yabo ye-ultra-dense inciphisa ukungena kwe-particle abrasive, ukunciphisa izinga lokunxiba kwindonga yangaphakathi kakhulu-ukwandisa ubomi benkonzo ngamaxesha angama-3-5 xa kuthelekiswa nemibhobho ye-ceramic yendabuko kunye nokunciphisa ixesha lokubuyisela rhoqo.

Kwiimeko zemizi-mveliso ezinobushushu obuphezulu obufana nokucocwa kwegesi enyibilikayo enyibilikayo kunye nonyango lombhobho wokutshisa inkunkuma, imilomo kufuneka imelane nokuvezwa kwexesha elide kumaqondo obushushu aphezulu angama-800-1000℃ ngelixa igcina uzinzo lokuhamba komoya. Apha, i-tungsten-cobalt carbide nozzles (enomxholo we-cobalt binder ye-6% -8%) yenza kakuhle kakhulu. Isibophelelo se-cobalt senza iqhina elizinzileyo ngeenkozo ze-tungsten carbide, ukunqanda ukuqhekeka kwesakhiwo okubangelwa kukothuka kwe-thermal kunye nokuqinisekisa isiphumo esingaguqukiyo sokutshiza se-atomization, ebaluleke kakhulu ekusebenzeni ngokufanelekileyo kwegesi ye-flue desulfurization kunye nokususwa kothuli.

Kwimimandla yokuhanjiswa kolwelo oluchanekileyo efana nokucoca itshiphu ye-semiconductor kunye nepaneli yepaneli ye-LCD, kunye ne-turbulence encinci ye-fluid inokukhokelela kwiziphene ezincinci (umzekelo, i-0.1μm-scale scratches) kumphezulu wemveliso. Imibhobho ye-carbide epholisiweyo-enodonga lwangaphakathi lwe-roughness ye-Ra≤0.02μm (eye yaphunyezwa nge-12-stage precision grinding) -ukuphelisa i-eddies yamanzi, eyenza ukugubungela okufanayo okutshizwayo (ngokuphambuka okungaphantsi kwe-5%) kunye nokuhlangabezana neemfuno ze-ultra-high precision industry ye-semiconductor.

Kummandla wemigodi enomsebenzi onzima (umzekelo, ukucinezelwa kothuli lomgodi wamalahle phantsi komhlaba kunye nokuthuthwa kwemibhobho yokulungiswa kwezimbiwa), imilomo ijongene nemingeni emibini: ukungqubana koomatshini ukusuka kumalahle/amaqhekeza amatye kunye nomhlwa ophuma kumanzi anezimbiwa ezininzi. Imibhobho ye-carbide ene-Thick-walled (enodonga oluyi-5-8mm, amaxesha angama-2-3 eemilomo eziqhelekileyo) kunye ne-surface anti-corrosion coating (umzekelo, i-chromium plating) ixazulula le ngxaki. Banciphisa ukuphindaphindeka kokutshintshwa ngokungaphezulu kwe-60% xa kuthelekiswa nemilomo yentsimbi eqhelekileyo, behlisa iindleko zolondolozo kumashishini emigodi.

Ukuqondwa kwexabiso lemilomo ye-carbide kubangelwa kule meko inzulu ye-synergy. Ngokulungelelanisa iifomyula zezinto eziphathekayo (umzekelo, ukulungelelanisa umxholo we-cobalt), ulwakhiwo lwezakhiwo (umzekelo, iindonga ezityebileyo), kunye nokulungiswa okuchanekileyo (umzekelo, ukugulisa i-ultra-fine) kwiimfuno ezithile zoshishino, abagcini nje ukunciphisa iindleko zokugcinwa kwe-30% -50% kunye nokuphucula ukusebenza kakuhle kwemveliso nge-20% -30% kodwa kwakhona baxhasa i-injini ye-injini ye-injini ephezulu ukusika icandelo (okufuna imilomo yokuchaneka kwe-dimensional ±0.005mm). Njengoko imizi-mveliso efana namandla amatsha, i-semiconductors, kunye ne-aerospace ilandela imigangatho yokusebenza ephezulu, uhlengahlengiso olusekwe kwimeko-bume ye-carbide nozzle luya kuvula ngakumbi amandla abo, lube ngumqhubi ophambili wokuphuculwa kwemizi-mveliso kunye nophuhliso olukumgangatho ophezulu.