Ukuqina
ityhubhu yensimbi engenasici esetyenziswa ngokuqhelekileyo ibrinell, iRockwell, iVickers izalathi ezintathu zobulukhuni ukulinganisa ubulukhuni bayo.
Ukuqina kweBrinell
Kumgangatho wetyhubhu yensimbi engenasici, ubulukhuni bebrinell yeyona nto isetyenziswa kakhulu, kaninzi ukuya kwidayamitha yokujongisisa ukubonisa ubulukhuni bemathiriyeli, eqondakalayo kwaye eluncedo.Nangona kunjalo, ayifanelekanga kwimibhobho yentsimbi eqinile okanye encinci.
Ubunzima beRockwell
Uvavanyo lobulukhuni be-Rockwell lwetyhubhu yensimbi engenastainless iyafana novavanyo lobulukhuni be-brinell, eyona ndlela yovavanyo lokungeniswa.Umahluko kukuba ilinganisa ubunzulu be-indent.Uvavanyo lobulukhuni be-Rockwell yindlela esetyenziswa ngokubanzi ngoku, phakathi kwayo i-HRC yesibini kuphela kwi-Brinell ubulukhuni be-HB kumgangatho wombhobho wentsimbi.Ukuqina kwe-Rockwell kungasetyenziswa ukumisela ukusuka kwi-softer ukuya kwizinto ezinzima kakhulu zetsimbi, yenza indlela ye-Brinell ayikho, ilula kunendlela ye-brinell, ingaba ngokuthe ngqo ukusuka kumatshini wobulukhuni ukudayela funda ixabiso lobulukhuni.Nangona kunjalo, ngenxa ye-indentation encinci, ixabiso lobunzima alichanekanga njengendlela ye-buchwald.
Vickers ubulukhuni
Uvavanyo lobulukhuni lwetyhubhu ye-Vickers lukwayindlela yokuvavanya i-indentation, ingasetyenziselwa ukumisela ukuqina kwezixhobo zetsimbi ezibhityileyo kunye nomaleko ongaphezulu.Ineenzuzo eziphambili zeBrinell kunye neendlela zeRockwell kwaye zoyisa izinto ezingalunganga, kodwa ayilula njengeendlela zeRockwell kwaye ayifane isetyenziswe kwimigangatho yemibhobho yentsimbi.
Uvavanyo lokuqina
Ububanzi bangaphakathi bombhobho wensimbi engenasici bungaphezulu kwe-6.0mm, kwaye ubukhulu bodonga bungaphantsi kwe-13mm.Umbhobho wensimbi engenasici odibeneyo unokuvavanywa ngu-W-B75 Uhlobo lwe-Wechsler tester hardness.Ikhawuleza kakhulu kwaye ilula, kwaye ifanelekile ukuhlolwa ngokukhawuleza kunye nokungonakalisi kombhobho wensimbi engenasici.Umbhobho wentsimbi engatyiwayo ubukhulu bangaphakathi mkhulu kune-30mm, ubukhulu bodonga bukhulu kuno-1.2mm umbhobho wensimbi engenasici, umvavanyi wobulukhuni be-rockwell, uvavanyo lwe-HRB, ubulukhuni be-HRC.Iityhubhu zentsimbi engenasiphene ezinobukhulu bangaphakathi obungaphezulu kwe-30mm kunye nobukhulu bodonga obungaphantsi kwe-1.2mm ziye zavavanyelwa ubulukhuni be-HRT okanye i-HRN nge-Rockwell hardness tester.Kwimibhobho yentsimbi engatyiwayo enedayamitha yangaphakathi engaphantsi kwe-0mm kwaye inkulu kune-4.8mm, i-rockwell hardness tester isetyenziselwa ukuvavanya ubulukhuni be-HR15T.Xa i-diameter yangaphakathi yombhobho wensimbi engenasici ingaphezulu kwe-26mm, ungasebenzisa i-Rockwell okanye umhloli wobulukhuni be-Rockwell ukuvavanya ubulukhuni bodonga lwangaphakathi lombhobho.
Ukuphuhliswa kwensimbi engenasici
Zonke iziphelo ezimbini zecandelo lokuvula kunye nengxuma, kunye nobude bayo kunye nomjikelezo wecandelo lensimbi enkulu, inokubizwa ngokuba yipayipi yensimbi.Xa ubude kunye nomjikelezo wecandelo lokuthelekisa lincinci, linokuthiwa icandelo lombhobho okanye izixhobo zombhobho, zonke ziyingxenye yemveliso yombhobho.
Ngaphezulu kweminyaka engama-60, abakhi bezakhiwo basebenzisa isinyithi esingenasici ukwakha izakhiwo ezisisigxina ezingabizi kakhulu.Izakhiwo ezininzi ezikhoyo zibonisa ukuchaneka kolu khetho.Ezinye zihombise kakhulu, njengesakhiwo saseChrysler esikwiSixeko saseNew York.Kodwa kwezinye ezininzi izicelo, insimbi engenasici idlala indima encinci kodwa ibalulekileyo kwi-aesthetics kunye nokusebenza kwezakhiwo.Insimbi engenasici, umzekelo, yinto ekhethwa ngabaqulunqi bokwakha iindledlana kwiindawo ezinabantu abaninzi bezithuthi ngenxa yokuba ixhatshazwa kakhulu kwi-abrasion kunye ne-creasing kunezinye iintsimbi ezinobunzima obufanayo.
Insimbi engenasici isetyenziswe njengesixhobo sokwakhiwa kwezakhiwo ezitsha kunye nokubuyiselwa kweendawo zembali ngaphezu kweminyaka engama-70.Uyilo lwangaphambili lwalusekelwe kwimigaqo esisiseko yokubala.Namhlanje, iinkcukacha zoyilo, ezifana ne-ANSI/ASCE-8-90 "iKhowudi yoYilo yeeNdawo zeNtsimbi epholileyo eyenziwe ngeNsimbi ecocekileyo" kunye ne "Structural Stainless Steel Design Manual" epapashwe ngokubambisana nguNiDI kunye ne-Euro Inox, yenze lula ukuyila ubomi obude, iindawo zolwakhiwo ezilondolozwe kakuhle kwizakhiwo.
Ukuthunyelwa ngaphandle kwentsimbi engatyiwayo kumazwe angaphandle yinxalenye ebalulekileyo yoqoqosho lwase-China lokuthumela ngaphandle, idlala indima ebalulekileyo ekukhuthazeni ukukhula koqoqosho lwase-China, kodwa ukusuka kwimeko yangoku yorhwebo lwangaphandle lwase-China lwentsimbi engatyiwayo, ukuthunyelwa kwe-China intsimbi engatyiwayo kumazwe angaphandle kuye kwahlangabezana nokuxhathisa okukhulu.
Ukususela kulo nyaka uphelileyo, phesheya rhoqo beza intsimbi stainless imveliso yokugalela e China "double reverse" umyalezo, inempembelelo enkulu kwishishini lokugalela intsimbi eTshayina, kunye nokuthunyelwa ngaphandle yinxalenye elungileyo yophuhliso loshishino lwentsimbi kwilizwe lethu. , kuphuhliso lweshishini linesabelo esikhulu semalike, ebusweni bokudodobala koqoqosho, isantya sophuhliso sicotha, uphuhliso loshishino lwensimbi engenastainless kwilizwe lethu kufuneka luqhubeke nokuphucula umgangatho wemveliso, ngcono uphuhliso lorhwebo lwaphesheya kunye nokukhuselwa korhwebo, iimveliso kunye nokukhuselwa kokusingqongileyo, izibonelelo zamandla, ubume bobuntu, ukunyusa ukukhuphisana kweemveliso zensimbi engenasici, ngale ndlela kuphela indawo engafanelekanga kwintengiso yangaphandle.
Ixesha lokuposa: May-23-2022