I-C0041 Friction Coefficient Tester

Lena imitha ye-coefficient ye-friction esebenza kakhulu, engakwazi ukucacisa kalula ama-coefficients ashukumisayo futhi amile wezinto ezihlukahlukene, njengamafilimu, amapulasitiki, iphepha, njll.

I-coefficient of friction ingenye yezinto eziyisisekelo zezinto ezihlukahlukene.
Lapho kukhona ukunyakaza okuhlobene phakathi kwezinto ezimbili ezixhumene nomunye nomunye
Noma ukuthambekela kokunyakaza okuhlobene, indawo yokuxhumana iyakhiqiza
Amandla omshini avimbela ukunyakaza okuhlobene ukungqubuzana
amandla. Izakhiwo zokungqubuzana zento ethile zinganqunywa ngempahla
Ukuze ubonise i-coefficient ye-dynamic ne-static friction. Ukungqubuzana okuqinile kubili
Ukumelana okuphezulu kwendawo yokuxhumana ekuqaleni kokunyakaza okuhlobene,
Isilinganiso sawo namandla avamile yi-coefficient of friction static; i-dynamic friction force iwukumelana lapho izindawo ezimbili ezithintanayo zinyakaza ngokuhlobene nesivinini esithile, futhi isilinganiso sesilinganiso sawo namandla avamile yi-coefficient yokungqubuzana okuguquguqukayo. I-coefficient ye-friction ingeyeqembu lamapheya okushayisana. Akunangqondo ukumane usho i-coefficient yokushayisana kwento ethile. Ngesikhathi esifanayo, kuyadingeka ukucacisa uhlobo lwezinto ezihlanganisa i-friction pair futhi ucacise izimo zokuhlola (izinga lokushisa elizungezile kanye nomswakama, umthwalo, isivinini, njll.) Nezinto ezishelelayo.

Indlela yokuthola i-friction coefficient ifana ngokuqhathaniswa: sebenzisa ipuleti lokuhlola (elibekwe etafuleni lokusebenza elivundlile), lungisa isampula eyodwa kupuleti lokuhlola ngeglue ezinhlangothi zombili noma ezinye izindlela, futhi ulungise elinye isampula ngemva kokusikwa kahle. Kusilayida esizinikezele, beka isilayidi phakathi nendawo yesampula yokuqala ebhodini lokuhlola ngokwemiyalelo ethile yokusebenza, futhi wenze inkomba yokuhlola yamasampuli amabili ihambisane nendawo yokuslayida futhi isistimu yokulinganisa amandla ayigcizelelwa. Ngokuvamile sebenzisa indlela elandelayo yokuhlonza isakhiwo.

Amaphuzu alandelayo adinga ukuchazwa ekuhlolweni kwe-friction coefficient:
Okokuqala nje, amazinga endlela yokuhlola ye-coefficient yokungqubuzana kwefilimu asekelwe ku-ASTM D1894 kanye ne-ISO 8295 (GB 10006 ilingana ne-ISO 8295). Phakathi kwazo, inqubo yokukhiqiza yebhodi lokuhlola (ebizwa nangokuthi ibhentshi lokuhlola) idinga kakhulu, hhayi kuphela i-tabletop okufanele iqinisekiswe Izinga nokushelela komkhiqizo kuyadingeka ukuba kwenziwe ngezinto ezingezona kazibuthe. Amazinga ahlukene anezidingo ezihlukene zezimo zokuhlola. Isibonelo, ekukhethweni kwesivinini sokuhlola, i-ASTM D1894 idinga u-150±30mm/min, kodwa i-ISO 8295 (GB 10006 ilingana ne-ISO 8295) idinga u-100mm/min. Izivinini ezihlukene zokuhlola zizothinta kakhulu imiphumela yokuhlolwa.
Okwesibili, ukuhlolwa kokushisa kungenziwa. Kumele kuqashelwe ukuthi lapho ukuhlolwa kokushisa kwenziwa, izinga lokushisa lesilayidi kufanele liqinisekiswe ukuthi lisezingeni lokushisa, futhi ibhodi lokuhlola kuphela kufanele lishiswe. Lokhu kushiwo ngokucacile ku-ASTM D1894 standard.
Okwesithathu, isakhiwo sokuhlola esifanayo singasetshenziswa futhi ukuthola i-coefficient yokungqubuzana kwezinsimbi namaphepha, kodwa ezintweni ezihlukene zokuhlola, isisindo, unhlangothi, isivinini kanye neminye imingcele yesilayidi ihlukile.
Okwesine, uma usebenzisa le ndlela, udinga ukunaka ithonya le-inertia yento ehambayo ekuhlolweni.
Okwesihlanu, ngokuvamile, i-coefficient yokungqubuzana kwezinto ingaphansi kuka-1, kodwa amanye amadokhumenti aphinde akhulume ngodaba lapho i-coefficient yokungqubuzana inkulu kuno-1, isibonelo, i-dynamic coefficient phakathi kwerabha nensimbi iphakathi kuka-1 no-4.

Izinto ezidinga ukunakwa ekuhlolweni kwe-friction coefficient:
Njengoba izinga lokushisa likhuphuka, i-friction coefficient yamanye amafilimu izobonisa ukuthambekela okukhulayo. Ngakolunye uhlangothi, lokhu kunqunywa izici ze-polymer material ngokwayo, futhi ngakolunye uhlangothi, kuhlobene nokugcoba okusetshenziselwa ukukhiqizwa kwefilimu (i-lubricant ikhulu kakhulu Ingase ibe seduze nendawo yayo yokuncibilika futhi inamathele. ). Ngemuva kokukhuphuka kwezinga lokushisa, uhla lokuguquguquka kwejika lokulinganisa amandla luyanda kuze kube yilapho kuvela into ethi "stick-slip".