Vanhu vakawanda pavanonzwa ‘simbi isina tsvina,’ vanofananidzira singi yekicheni inopenya isingaparare. Ndiyo yekutanga kusanzwisisa. Muchokwadi, imhuri yealloys, uye kusarudza iro risiri iro giredhi rekushandisa iko kukanganisa kunodhura kwandaona kakawanda. Haisi nyaya yekuramba kuita ngura chete; ndezve machinability, weldability, uye maitiro azvinoita pasi pekushushikana kana kupisa. Ngatitaure nezve izvo ma spec sheets asingagadze kukuudza.
Iyo Alloy Haisi Iyo Yese Nyaya
Tora 304 uye 316, mabhiza ebasa. Wese munhu anoziva kuti 316 ine molybdenum yekuramba kurinani kwegomba mumakloridi. Asi pasi pechitoro, musoro wakakura une 316 maitiro ekushanda-kuoma sekupenga panguva. CNC machining. Iwe unofunga kuti une mafeeds ako uye nekumhanyisa kudhindwa mukati, uye kamwe kamwe chishandiso chiri kuchema, kupedzisa kwepamusoro kunoenda kugehena, uye iwe unosara uine yakaoma, gummy mess. Inoda ruremekedzo uye maturusi anopinza, zvakanyanya kupfuura 304. Kune kambani yakafanana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), iyo inobata zvese kubva pakukandira kusvika pakupedzisira machining, izvi hazvisi zvedzidzo. Zvinoreva kuronga cheni yese-yekutanga nekugadzira zviyo-kutenderedza kuti zvinhu zvichachekwa sei gare gare.
Ipapo kune giredhi remahara-machining, 303. Yakawedzerwa sarufa, saka inopfava zvakanaka. Asi sarufa imwe chete iyoyo inouraya kusadzivirirwa kwayo nekuora uye kusimba kwayo. Ndakamboona batch ye303 mavharuvhu miviri, yakanyatsogadzirwa, inotadza nguva isati yakwana munzvimbo ine ngura inotyisa nekuti mumwe munhu anofungidzira kuti haina tsvina. Mutengi aida 316, asi 303 yaive yakachipa uye iri nyore kugadzira muchina. Iko kuchengetedza kwenguva pfupi kunodhura mari yakawanda mukutsiva uye mukurumbira. It's a classic trap.
Iyo chaiyo nuance inouya nekunaya-kuomesa mamakisi senge 17-4 PH. Iwe unochigadzira mune mhinduro-yakagadziriswa Condition A, iyo yakapfava. Wobva wadziisa kuH900 kana H1150 kuti uwane simba rinoshamisa iro. Asi kana kutevedzana kwako kwemuchina kusingaverengere shanduko panguva iyo yekupedzisira kupisa kupisa-uye ichachinja-yako yakasimba-kushivirira bhuraketi remuchadenga rinova marara. Kutamba pakati pemuchina nemetallurgist.
Kuikanda Zvakanaka: Kupfuura Kungodira Simbi
Apa ndipo panoiswa nheyo. Investment casting yakanaka kune yakaoma simbi isina tsvina zvidimbu, asi dhiyabhorosi ari mune zvakadzama. Gating uye riser dhizaini yakakosha. Stainless ine yakasiyana shrinkage pateni pane kabhoni simbi. Kana iwe ukashandisa imwechete feeder system, iwe unowana shrinkage porosity muzvikamu zvakakora. Takadzidza izvi kare paQSY. Pombi yeimba yekukandira yakaramba ichitadza bvunzo dzekumanikidza. Iyo geometry yainzwika, ma alloy certs aive akakwana. Nyaya yaive yekusimudza yaive diki uye panzvimbo isiri iyo, nzara yekukanda iyo ichiomesa. Kugadzirisazve nzira yekudyisa kwakagadzirisa. Kwakanga kusiri kukundikana kwezvinhu; kwaive kukundikana kwemaitiro.
Shell mold casting for stainless inosuma imwe shanduko: metal-mold reaction. Mamwe maalloys, kunyanya aya ane high chromium, anogona kuumba yakaoma, yakatsiga inopisa-pa layer apo simbi inosangana neceramic shell. Ichi hachisi chikero chaunogona kungoputika; ndicho chisungo chesimbi. Kana yakanyanya kuomarara, inoparadza pasi uye inoda yakawandisa stock allowance yekugadzira machining, ichiridza mutengo. Uchenjeri huri mujasi rechiso chekuumbwa-iyo chaiyo zircon hupfu kana refractory inoshandiswa-uye kutonhora kwekudurura. Madhigirii mashoma anopisa zvakanyanya, uye uri kuzvitengera mazuva ekuwedzera basa rekukuya.
Uye ngatisakanganwe akakosha alloys QSY inotaura, senge nickel-based ayo. Kazhinji, hausi kungokanda zvisina tsvina; uri kukanda Inconel kana Hastelloy padivi payo. Maitiro echoto anofanirwa kuve asina kuchena kudzivirira kusvibiswa. Tsanangudzo yekabhoni simbi inosara muladle inogona kuunza iron carbides mu superalloy kunyunguduka, zvichikanganisa humiro hwayo hwepamusoro-tembiricha. Iyo Logistics mune yakawanda-material foundry yakakosha senge metallurgy.
Iyo Machining Chokwadi: Chatter, Kupisa, uye Chishandiso Hupenyu
Kuuya kubva pakukanda, iyo machining stock haiwanzo yunifomu. Unogona kunge uine jecha rakaputika nehomwe dzakaoma. Yako yekutanga roughing pass inofanirwa kuve ine hukasha zvekuti upinde pasi peiyi isingaenderane pamusoro pe layer asi yakagadzikana zvekusavhundutsa chishandiso. Kune mahombe ekukanda, kusungirira uye kugadzirisa kudzivirira kukanganisa pasi pemasimba ekucheka imhando yehunyanzvi. Iwe hausi kugadzira billet yakakwana; uri kuchenesa pedyo-net-shape chikamu chine mukati mekushushikana kubva pakukanda maitiro.
Sarudzo inotonhorera inokosha zvikuru. Chinotonhorera-chinangwa chinogona kunge chakanakira aruminiyamu kana simbi yakapfava, asi simbi isina tsvina, unoda lubricity yakakwirira. Chinangwa hachisi chokungotonhodza; ndiko kudzikisira mupendero wakavakirwa papitipi yekushandisa, inova ndiyo inonyanya kukonzera kupera kwakashata uye nekukasira kupfeka kwechigadzirwa mune gummy zvinhu. Takachinjira kune chaiyo inorema-basa, chlorine-isina synthetic inotonhorera makore apfuura, uye hupenyu hwematurusi pamabasa edu 316 hwakawedzera pamwe ne30%. Zvakanga zvakakosha.
Zvadaro pane post-machining stress. Kugaya kunorema kana kutendeuka kunogona kukonzeresa kushushikana kwepamusoro zvekuti, munzvimbo inoodza sevhisi, inova nzvimbo dzekutangisa kushushikana kwecorrosion cracking (SCC). Kune zvikamu zvakatemerwa zvidyarwa zvemakemikari kana kushandiswa kwemahombekombe, kufambisa kwekupedzisira kana kunyange kudzika-tembiricha kushushikana kunetseka kunogona kudikanwa. Haisi payakajairwa kudhirowa, asi imhando yeruzivo rwekuita iyo inoparadzanisa chitoro chebasa kubva kune yechokwadi yekugadzira mudiwa.
Kana Stainless Zvisingareve Stain-Free
Iyi ndiyo nzvimbo huru yedzidzo yemutengi. Passivation inosungirwa. Haisi porishi yesarudzo. Ikemikari inobvisa masimbi emahara akaiswa mukati kubva mukugadzira (funga nezvezvimedu zvidiki zvesimbi inotsikirirwa muchikamu) uye inopfumisa iyo chromium oxide layer. Kana ukaisvetuka, chikamu chinopenya chichaita ngura munzvimbo inochengeterwa zvinhu ine hunyoro, uye foni inorira nemutengi akatsamwa. Ndaifanira kutsanangura izvi kakawanda kupfuura zvandinogona kuverenga.
Corrosion zvakare ndeyekugadzira. Makwara muvengi. Iyo flange yakashongedzwa zvakanaka inobatana neimwe nzvimbo ine gasket inogona kugadzira mutswe wakasimba. Munzvimbo iyoyo ine okisijeni-yapera, kunyangwe 316 inogona kutambura negora remutswe. Mhinduro yacho inogona kunge iri nyore sekutsanangura imwe gasket zvinhu kana yakafara flange chiso. Zviri zvekufunga simbi isina tsvina chikamu sechikamu chehurongwa, kwete chidimbu chesimbi.
Uye kupisa tint kubva kune welding. Ruvara rwomuraraungu irworwo haruna kungoshata; inzvimbo iyo chromium yakapera, zvichiita kuti ive nyore kuita ngura. Zvekushandisa zvehutsanana kana zvemugungwa, iyo tint inofanira kubviswa, kazhinji nekunhonga uye passivation. Welder inogona kuburitsa yakarongeka yeTIG weld, asi kana iyo yekupisa isina kudzorwa uye rutivi rwekumashure rusina kucheneswa nemazvo, iwe wagadzira remangwana rekukundikana. Kudzora kwehunhu kunofanirwa kutarisa kunze kweX-ray yehurema uye kutarisa simbi yepasi.
Kukosha kweMushandi Wese-Yakazara
Apa ndipo apo modhi yekambani yakaita seQSY, ine makore makumi matatu mukukanda uye kugadzira, zvine musoro. Matambudziko andatsanangura ndeehurongwa. Chirema chekukanda chinogona kusaoneka kusvika pakupera kwekugadzira machining, kutambisa kukosha kwese kwakawedzerwa. A machining zano rinofuratira kukanda kwasara kushushikana kunogona kukonzera kukanganisa. Kuva nemirairo yese iri pasi pedenga rimwe kunobvumira zvishwe zvemhinduro izvo zvinorasika kana iwe uchikandira kune mumwe mutengesi uye machining kune mumwe.
Vanogona kuita sarudzo kare kare. Semuyenzaniso, Ichi chikamu geometry muna 17-4 PH chingave chinotyisa kugadzira muchina kubva kune yakasimba block. Ngatiisei mari iine 90% mambure chimiro, kunyangwe mutengo wekushandisa wakakwira, nekuti mutengo wakazara wevaridzi - kutambisa zvinhu, nguva yekugadzira, kupfeka kwezvishandiso - kuchadzikira. Ndiko kudanwa kwekutonga kunobva pakuita mativi ese equation.
Inovakawo intuition yezvinhu. Chikwata chavo chevakatanga chinoziva kuti imwe kupisa kwe304 kubva kuMutengesi A kunowanzoita mvura yakawanda kupfuura kubva kuMutengesi B, iyo inogona kukanganisa kuzadza mold. Chikwata chavo chekugadzira chinoziva kuti bar stock kubva kuMill C inogara ichiita seine chiyero chakaoma. Iyi zivo yakanyarara, yakaunganidzwa kwemakumi emakore, ndiyo yauri kutenga chaizvo. Haisi chete kugona rondedzero senge shell mold casting uye CNC machining; ndiko kuunganidzwa, dzimwe nguva kunorwadza, ruzivo rwekuita kuti maitiro aya ashande pamwechete pazvinhu zvakaoma. Ndizvo zvinoshandura simbi isina tsvina kubva muchinhu ichiiisa mugadziriso wakagadzirwa.
