Xa usiva i-'420 stainless steel', into yokuqala ethi qatha engqondweni 'ziimela'. Kwaye awuphosisi, kodwa kulapho ukwenziwa lula kakhulu kuqala. Kwisiseko kunye nehlabathi lomatshini, ukuphatha i-420 'njengebanga lokusika' yindlela ekhawulezayo yokufumana iingxaki. Yi-martensitic stainless, ethetha ukuba ilukhuni, kodwa olo phawu lubukhali macala omabini. Ndibone iiprojekthi ezininzi kakhulu apho i-spec ibiza i-420 ngenxa yokuba yayiligama elaziwayo, ngaphandle kokuqonda ngokwenene indlela yokuziphatha kwayo ngexesha nasemva kokuqhutyelwa phambili. I-gap phakathi kweepropathi zayo zethiyori kunye nenyaniso yokuguqula i-casting okanye i-bar stock kwinxalenye egqityiweyo apho umsebenzi wangempela-kunye nezifundo ezinomdla-zenzeka.
INyaniso yoBulukhuni kunye neentloko eziMachining
Makhe sithethe ngondoqo we-420: umxholo wayo we-chromium we-12-14% kunye nekhabhoni eyaneleyo (malunga ne-0.15% min) ukuvumela ukuqina. Ephepheni, uyayiphatha ngobushushu kwaye ufumane ukuxhathisa okufanelekileyo kunye nokomelela. Ngokusebenza, ngakumbi kwi-investment casting apho inkampani yam, QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ngokukhethekileyo, i-as-cast structure ibalulekile. Ukuba awulawuli ilungelo lokupholisa ukusuka ekuthululeni, unokufumana i-austenite egcinwe ngokugqithisileyo okanye ukwakheka kwe-carbide engalinganiyo. Oko kukhokelela kubulukhuni obungahambelaniyo kamva, nokuba ugqibelele kangakanani umjikelo wakho olandelayo wokuphatha ubushushu. Sifunde oku kwangethuba ngebhetshi yamalungu evalvu. I-spec ibize i-HRC 48-52 emva kokuqina kunye nokucaphuka. Sifumene yonke into ukusuka kuma-44 ukuya kuma-55 kwibhetshi enye. Umoni? Utshintsho oluncinci, oluphantse lube yinto engabalulekanga kubukhulu bodonga lwee-castings ezitshintshe izinga lokuqiniswa. Iphepha ledatha alikulumkisi ngaloo nto.
Emva koko kuza umatshini. I-420 yangaphambili ilukhuni. Iyakuthanda ukusebenza nzima. Ucinga ukuba uthatha i-cut nice, kwaye ngequbuliso isixhobo sakho siyatsha ngenxa yokuba izinto eziphathekayo ziye zaba nzima phantsi komphetho wokusika. Senza okuninzi CNC Machining ngaphakathi kwindlu kwiziko lethu (uyakwazi ukubona ezinye zezakhono zethu apha https://www.tsingtaocnc.com), kunye ne-420 ifuna intlonipho. Ijiyometri yesixhobo, ukutyabeka, kunye namazinga esondlo ayizozo nje zezona ndlela zilungileyo apha; bangumahluko phakathi komsebenzi onengeniso kunye nokuchitha yonke isethi yezinto ezixabisa kakhulu. Ukukhetha okupholileyo kunye nokuhamba kuba yeyona ndawo iphambili yokuthetha kumgangatho wevenkile. Ayiyo 'seti kwaye ulibale' imathiriyeli efana neentsimbi ezithambileyo.
Ndikhumbula iprojekthi yeblade yokulungisa ukutya. Umxhasi wayefuna ukuba umphetho ubambe isiphelo esibukhali ixesha elide. Sicebise ngama-420, kodwa babenohlahlo lwabiwo-mali oluqinileyo kwaye bafuna umsebenzi omncinci wokuphosa emva. Sizamile ukuhambisa iicastings ngokusondeleyo kubume bomnatha kangangoko sinakho ukunciphisa iindleko zokwenza. Intshukumo embi. Isikali esincinci kunye ne-decarb yomphezulu ukusuka kwinkqubo yokuphosa kuthetha ukuba ukupasa komatshini kwakungahambelani, okukhokelela kwincoko kunye nomgangatho ophantsi womphetho. Saye sagqiba ekubeni songeze i-uniform machining kunye nesinyathelo sokucoca ngaphambi kokusila kokugqibela, esasidla inzuzo kodwa sahambisa inxalenye. Isifundo: nge 420, ngamanye amaxesha awukwazi ukutsiba amanyathelo ukonga iindleko. Izinto eziphathekayo ziya kukwenza ukuba uzihlawulele kamva.
Ukuchasa ukonakala: Umbono ongeyiyo ongalunganga
Le yinto enkulu. Abantu babona 'i-stainless' kwaye bacinge ukuba kufana ne-304 okanye i-316. Akunjalo. I-420 inokumelana nomhlwa ophantsi kakhulu. Ichromium ikhona ikakhulu yokuqina, hayi ukwenza umaleko oqinileyo wokwenziwa. Kwimekobume ethozamileyo enomhlwa, njengendawo efumileyo okanye ukudibana namanzi ngamaxesha athile, kulungile. Kodwa yibeke ngokudibana rhoqo kunye nekloridi okanye i-asidi, kwaye iya kuphawula kwaye igrumbe. Sasinomthengi kushishino lwaselwandle owayefuna i-420 encinci, i-fastener ephezulu yamandla. Babetshintsha inxalenye yentsimbi yekhabhoni evuthwe ngokukhawuleza. Inxalenye engama-420 yahlala ixesha elide, kodwa kwisithuba sonyaka, yabonisa ukugoba. Kwisicelo sabo, i-17-4 PH okanye i-316 enokuqina okufanelekileyo bekuya kuba ngcono, kodwa iindleko zangaphambili zaboyikisa. Sifunde ukuba nencoko yokonakala kwangaphambili, ngalo lonke ixesha, nokuba oko kuthetha ukubuyisela umva kukhetho lokuqala lwemathiriyeli.
Ukumelana nomhlwa kuxhomekeke kakhulu ekugqityweni komphezulu. Umphezulu ogudiswe ngokugqibeleleyo we-420 uya kwenza ngcono kakhulu kunomatshini orhabaxa okanye owenziweyo. Oku kunxulumana ngqo nomva wethu iqokobhe ngundo ukuphosa kwaye utyalo mali iinkqubo. Ngokuphoswa kotyalo-mali, sinokufikelela kwindawo entle kakhulu egqityiweyo ngqo ngaphandle kokubumba, ebonelela ngesiqalo esingcono. Ngokubumba iqokobhe, kuhlala kukho ukucocwa komphezulu okuninzi okufunekayo. Ke ukhetho lwenkqubo yokuphosa ngokwalo lunokuphembelela ukusebenza kwenxalenye yokugqibela kwiisetingi ezonakalisayo, into engabonakaliyo xa ujonge itafile yezinto eziphathekayo.
I-post-weld okanye i-post-heat-treatment, ukuxhathisa kwe-corrosion kuthatha enye i-hit ukuba awukhethi kakuhle kwaye ugqithise. Asithumeli nje iindawo eziphethwe bubushushu ngaphandle kweli nyathelo. Yinto yexabiso elongezelelweyo, kodwa ukuyitsiba kuthetha ukuba inxalenye inokugqwala kwindlela yokuhamba okanye ekugcinweni kwayo, ekhangeleka ingenamsebenzi ngendlela emangalisayo. Ngala manyathelo mancinci, angenabukhazikhazi achaza umgangatho xa usebenza ngamabakala afana nama-420.
Ukusebenza ngeAlloy Variations kunye neSourcing
420 asiyonto nje enye. Kukho i-420, i-420F (eyongeziweyo isulfure yobuchule), kunye ne-420J2 eyahlukileyo kunye noluhlu lwekhabhoni olwahluke kancinane. I-420F iphupha kumatshini xa kuthelekiswa nomgangatho we-420, kodwa i-weldability yayo imbi kwaye ukufakwa kwe-sulfide kunokuba ngamanqaku obuthathaka bokudinwa okanye ukubola. Kufuneka utshatise ukwahluka kumsebenzi. Kwisakhelo esintsonkothileyo, esinodonga olucekethekileyo oluya kufuna lukhulu CNC Machining, sinokutyhala i-420F ngemvume yomthengi, sichaza urhwebo-off. Kwinxalenye efuna ukuqina kwempembelelo entle, siyakushiya udidi 'F'.
Ukufumana imathiriyeli ekrwada engaguqukiyo bobunye ubugcisa obuchuliweyo. Ngaphezulu kweminyaka engama-30 kweli shishini, sakhe ubudlelwane kunye namashishini kunye nabasasazi esibathembayo. Umahluko phakathi kwe-melt ecocekileyo kunye nengcolileyo ye-420 inkulu kakhulu yokuphosa kunye nokunyaniseka kokugqibela. Ukungcola kunokukhokelela ekukrazuleni okutshisayo ngexesha lokuqina okanye ukubandakanywa okungezona isinyithi okuba ngamanqaku angaphumeleli. Xa sithenga imathiriyeli yokuphosa, asithengi nje '420 intsimbi estainless'; sikhankanya uqheliso lokunyibilika kwaye sicela iziqinisekiso zemill esiziphonononga ngokwenene. Linqanaba lenkuthalo eyahlula inxalenye esebenzayo kwenye engaphumeleli entsimini.
Le ngqwalasela kwimfezeko yezinto eziphathekayo ingundoqo kwindlela QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza. Nokuba yi-420, enye intsimbi engenasici amabanga, okanye i-alloys esekwe nickel nathi siphatha, ifilosofi iyafana: ukuqonda umphefumlo wezinto eziphathekayo, kungekhona nje amanani ayo. Unokufumana ngakumbi malunga nendlela yethu yokwenza izinto kwindawo yethu, tsngtaocnc.com. Sesi siseko esisivumela ukuba sijongane nemisebenzi enobuqili ngokuzithemba.
Uwukhetha nini u-420 (Kwaye xa uhamba nini)
Ke, emva kwazo zonke ezi ntloko zinokwenzeka, kutheni usebenzisa u-420 kwaphela? Kuba xa ingena, sisisombululo esinendleko. Igqwesile kumacandelo afuna indibaniselwano yokumelana nomhlwa kunye nokuqina okuphezulu / ukomelela apho iprimiyamu yamabakala afana ne-440C okanye i-17-4 PH ayithetheleleki. Cinga ngeeshafti zempompo, isivali sevalvu, izixhobo zotyando (apho inokumenyezwa ukuya kutsho kwinqanaba eliphezulu), ewe, iimela neencakuba ezithile ezingayi kubona ubume bemichiza erhabaxa. Ipropathi yayo yamagnetic nayo iyimfuneko kwezinye izicelo.
I-matrix yesigqibo kuthi ngokuqhelekileyo ihamba ngolu hlobo: Ngaba inxalenye kufuneka ibe nzima? (Ewe). Ngaba iza kubona kuphela umhlwa okanye ibe kwindawo ekhuselekileyo? (Ewe). Ngaba ijometri ifanelekile kunyango lobushushu obulawulwayo ukunqanda ukugqwetheka? (Kubalulekile). Ngaba uhlahlo lwabiwo-mali lunovakalelo? (Rhoqo). Ukuba iibhokisi ezininzi zikhangelwe, i-420 ngumkhuseli onamandla. Emva koko sinengxoxo yobugcisa malunga noyilo lokuphosa (amacandelo afanayo, i-radii enesisa), isicwangciso somatshini, kunye neenkcazo zonyango lobushushu ngaphambi kokuba sicaphule. Oku kuthintela ukothuka.
Ndiye ndayishiya imisebenzi echaza i-420 yamalungu angaphantsi kwamanzi okanye iinxalenye zeempompo zedosi yemichiza. Asiyonto yebhongo; imalunga nokwazi imida yezinto. Ukutyhala imathiriyeli kwisicelo engayifanelanga ikhokelela kufowunelo, umonakalo wodumo, kunye nabathengi abangonwabanga. Ngamanye amaxesha, eyona nkonzo yobuchwephesha onokuthi uyinike kukuba, Le asiyonto ilungileyo, kwaye nantsi isizathu.
Umdaniso woNyango loBubushushu
Awukwazi ukuthetha malunga ne-420 ngaphandle kokuntywila nzulu kunyango lobushushu. Linyathelo lokwenza okanye lokuqhawula. Ubushushu be-Austenitizing, i-medium yokucima (i-oyile isemgangathweni), kunye nomjikelo we- tempering ayizizo iiresiphi ozitsalayo kwincwadi. Ziindawo zokuqala. Iiparamitha ezichanekileyo zitshintsha ngokusekwe kubunzima benxalenye, ubukhulu becandelo, kunye nembali yomatshini yangaphambili. Ngokomzekelo, inxalenye enoxinzelelo olunzima lwemishini idinga ukukhululeka koxinzelelo phambi kokuqina kunye nomsindo, okanye inokujika kakhulu.
Senza unyango lwethu lobushushu endlwini kwimisebenzi ebalulekileyo kuba sifuna olo lawulo. Kwibhetshi ye-high-precision blades scraper, sifumene ukuba umsindo ophindwe kabini-into engasoloko ifunwa-iphucule ngokumangalisayo ukuzinza kwe-dimensional. Umsindo wokuqala emva kokuthomalalisa ukhulula uxinzelelo olukhulu, kodwa okwesibini, umsindo ongaphezulu kancinci ubonakala ukhupha ubulukhuni kwaye ukhulule ngakumbi uxinzelelo olushiyekileyo olusuka kucime ngokwalo. Isiphumo saba yintshukumo encinci ngexesha lokugaya i-micro-grinding yokugqibela. Ngama-nuances owacholayo ngaphezulu kwamakhulu eebhetshi.
Ukubeka iliso ngundoqo. Silandelela ubushushu besithando somlilo kunye nezivamvo ezizimeleyo, hayi nje ukufunda isilawuli. Ukucima ubushushu be-oyile kunye nokuphazamiseka kuyalawuleka. Kuvakala ukuba sisiseko, kodwa ndibone iivenkile apho itanki yokucima ikwikona kwaye ubushushu beoyile buguquka namaxesha onyaka. Awusoze ufumane iziphumo ezihambelanayo kunye ne-420 ngaloo ndlela. Umahluko phakathi kwenxalenye egqibeleleyo, ekrwada kunye negoso-goso, eqhekekileyo idla ngokuba ngama-degrees angama-50 ekucimeni okanye imizuzu eli-15 ixesha elide kakhulu kwiziko lomlilo.
Ekugqibeleni, i-420 insimbi engenasici sisixhobo. Enye ecacileyo kakhulu. Ifuna ukuqonda kwengcali—intlonelo ngezinto zayo ezintsonkothileyo, ukwazi imida yayo, kunye nenkqubo echuliweyo yokutyhila amandla ayo. Ayisiyonto yesiqhelo okanye engxamisekileyo. Kodwa xa uyifumana ilungile, xa ukuphosa kuvakala, umatshini ucocekile, kunye nendawo yonyango lobushushu, inikezela ngenxalenye eyomeleleyo, esebenzayo eyenza kanye njengoko kufuneka. Lulo ulwaneliseko olukugcina kulo mdlalo, ucinga umdaniso phakathi kwesinyithi, inkqubo, kunye nesicelo, ibhetshi enye ngexesha.
