Ukuhlolwa kokuqina kwe-Rockwell kwezinhlanganisela ze-polymer ze-PEEK

I-PEEK (i-polyetheretherketone) iyinhlanganisela esebenza kahle kakhulu eyenziwe ngokuhlanganisa i-PEEK resin ngezinto eziqinisayo ezifana ne-carbon fibre, i-glass fibre, nezitsha zobumba. Impahla ye-PEEK enobulukhuni obuphakeme imelana kakhulu nokuklwebheka nokuhuzuka, futhi ifanele ukukhiqiza izingxenye ezingagugi nezingxenye ezidinga ukusekelwa okunamandla aphezulu. Ubulukhuni obuphezulu be-PEEK buyenza ikwazi ukugcina isimo sayo ngisho nangemva kokucindezeleka komshini kanye nokusetshenziswa isikhathi eside, okwenza isetshenziswe kabanzi ku-aerospace, yezimoto, yezokwelapha kanye neminye imikhakha.

Okwezinto ezihlanganisiwe ze-PEEK polymer, ubulukhuni be-Rockwell bungenye yezinkomba ezibalulekile zokuhlola ukusebenza kwayo. Umgomo wokuhlola ubulukhuni be-Rockwell usekelwe endleleni yokuhlehlisa, enquma ubulukhuni bento ngokulinganisa ukujula kokuhlehlisa okukhiqizwa yisihlonzi esithile esicindezela endaweni ebonakalayo ngaphansi kwamandla okuhlola athile. Ngaphezu kwalokho, kuyadingeka futhi ukuhlola izakhiwo zayo zemishini ngokuhlola amandla ayo aqinile, amandla okugoba, amandla omthelela, njll., futhi ulandele izindinganiso zamazwe ngamazwe noma kazwelonke njenge-ISO, ASTM, njll. ukwenza izivivinyo ezijwayelekile ukuqinisekisa ukuzinza kwekhwalithi nokusebenza kwayo, kanye nokuqinisekisa ukuphepha nokuthembeka kokusetshenziswa kwayo emikhakheni ehlobene.

Imiphumela yokuhlolwa kokuqina kwe-Rockwell ingabonisa ngokuqondile amandla ezinto ezihlanganisiwe ze-PEEK polymer ukumelana nokuguqulwa kwepulasitiki. Ubulukhuni be-Rockwell obuphakeme busho ukuthi i-material inokuqina okuqinile kokuklwebheka nokungagugi, okubalulekile ekukhiqizeni kwayo izingxenye ze-aerospace, iqinisekisa ukuthi izingxenye zingasebenza ngokuzinza nangesikhathi eside ezindaweni eziyinkimbinkimbi zemishini nezimo ezimbi kakhulu; uma isetshenziswa emkhakheni wezimoto ukwenza izingxenye zenjini kanye nezingxenye zesistimu yokudlulisa, izinto ezihlanganisiwe ze-PEEK ezinobunzima obuphezulu zingathuthukisa impilo yesevisi nokuthembeka kwezingxenye; emkhakheni wezokwelapha, lapho kusetshenziselwa ukukhiqiza izinsimbi zokuhlinza noma izimila, ubulukhuni obufanele abukwazi nje ukuqinisekisa ukusebenza kwethuluzi, kodwa futhi buhlangabezane nokuhambisana okuhle kwemishini phakathi kokufakelwa kanye nezicubu zomuntu. Ngesikhathi esifanayo, imiphumela yokuhlola ubulukhuni be-Rockwell ingasetshenziswa futhi njengesisekelo esiyinhloko sokulawulwa kwekhwalithi, esetshenziselwa ukuqapha ukuqina kokusebenza kwempahla ye-PEEK phakathi nenqubo yokukhiqiza, kanye nokuthola ngokushesha izinkinga zekhwalithi ezibangelwa izinguquko zezinto zokusetshenziswa, ukucubungula ubuchwepheshe nezinye izici.

Lapho kuhlolwa ubulukhuni be-Rockwell bezinto ze-PEEK, uhlobo lwe-indenter namandla okuhlola kufanele kukhethwe ngokunengqondo ngokuya nezici zezinto ezibonakalayo kanye nebanga lobunzima obungenzeka. Izikali ezivame ukusetshenziswa zifaka i-HRA, i-HRB, i-HRC, i-HRE, i-HRR, i-HRL, i-HRM, njll.

Ngaphambi kokuhlolwa okusemthethweni, qiniseka ukuthi indawo yokuhlola yezinto ze-PEEK iyisicaba, ibushelelezi, futhi ayinawo uwoyela, ungqimba lwe-oxide noma okunye ukungcola ukuze uqinisekise ukunemba kwemiphumela yokuhlolwa. Beka isampula ngokuqinile ebhentshini lomsebenzi lomhloli wokuqina ukuze uqinisekise ukuthi isampula ayinyakazi ngesikhathi sokuhlolwa. Ngaso sonke isikhathi lapho kuhlolwa, izinqubo zokusebenza zesihloli sokuqina kufanele zilandelwe ngokuqinile, futhi amandla okuhlola kufanele asetshenziswe kancane ukuze kugwenywe ukulayisha umthelela. Ngemva kokuthi amandla okuhlola azinzile ngesikhathi esishiwo, funda futhi urekhode inani lobulukhuni be-Rockwell elihambisana nokujula kokuhlehlisa. Ukuze kutholwe idatha emele abantu abaningi, izilinganiso eziningi ngokuvamile zenziwa ezindaweni ezihlukene, njengokukhetha izindawo zokuhlola ezi-5 noma ngaphezulu ezihlukene, bese imiphumela yokulinganisa ihlaziywa ngezibalo ukuze kubalwe amapharamitha afana nenani elimaphakathi kanye nokuchezuka okujwayelekile.