Kana mumwe munhu akabvunza nezve 'casting simbi mutengo', ivo vanowanzo tsvaga nhamba iri nyore. Ndiko kukanganisa kwekutanga. Mutengo hausi simbi chete. Ndiwo mamiriro ealloy zuva iro, kuoma kwausina kutaura, uye nguva yekutungamira iwe uri kutarisira kupwanya chinyararire. Ndapedza makore kuQSY, Qingdao Qiangsenyuan Technology Co., Ltd., uye chidzidzo chekutanga ndechekuti yakachipa. kukanda mutengo wesimbi kazhinji inoguma yava chikamu chinodhura zvikuru chepurojekiti.
Kuputsa iyo Per Kilo Illusion
Vatengi vatsva vanoda kutaura mutengo pa kilogiramu. Kune yakajairika grey iron, pamwe iwe unowana yekutanga. Asi shandura kune nickel-based alloy ye high-temperature valve component? Mutambo unoshanduka zvachose. The raw material cost volatility inopenga. Ini ndinorangarira mukutanga kwa2021, iyo quote yatakapa yebhechi yesimbi isina tsvina 316L castings yakanga isingachashandi mukati memavhiki matatu nekuti nickel nzvimbo mutengo wakakwira. Takatozodzokera kuclient, heti mumaoko. Haisi chete iyo LME ticker; ndiyo premium yegiredhi chairo, chimiro cheingot, uye stock yemutengesi. Iwe hausi kutenga simbi inotengeswa; uri kutenga chaiyo yemakemikari kuumbwa inosangana neASTM spec.
Ipapo pane goho. Apa ndipo apo shell mold uye kuisa mari kukanda kunoratidza mazino avo. Unogona kutenga 100 kg yealloy, asi kana chikamu chejiometry chiri chinotyisa chine madziro matete uye maflange makuru, goho rako rinogona kudonha kusvika pa50% kana kudzika. Zvese izvo sprue, mumhanyi, uye zvimedu simbi zvinonyungudutswa mukati mako kukanda mutengo wesimbi. Takagadzira imba yeturbine yakaoma pane imwe nguva apo goho rakanga risina kunaka takapotsa tadzokorora basa rose pakati pekugadzira. Mutengo wekirogiramu waisareva chinhu. Mutengo chaiwo waive musimbi yakazodzokera muchoto.
Saka chinhu chekutanga chatinoita paQSY hachisi chekupa mutengo. Ndiko kutora dhirowa uye kuita ongororo yezvinogona kuitika. Tinogona kukanda izvi muchidimbu chimwe chete? Isu tinoda kushandura dhizaini kona kuti tideredze machining gare gare? Iyo diki dhizaini tweak dzimwe nguva inogona kupeta goho. Ndiko kutaurirana kwemutengo chaiwo, kwete kubiridzira pamusoro peiyo base rate.
Iwo Akavanzika Multipliers: Maitiro uye Precision
Shell mold casting inopesana nekudyara kwekudyara - mutyairi wemutengo pano ndeye geometry uye kupera kwepamusoro. Investment casting, yezvishongo zvakaomarara kana mablades emuchadenga, ine mutengo wakasiyana zvachose. Mapatani ewakisi, goko receramic, inodzorwa dewaxing uye sintering cycles... inyanzvi. The mutengo wesimbi inova chikamu chidiki. Ndakaona mapurojekiti umo mutengo wekuita waive 70% yehuwandu. Vatengi vakagadziriswa pane alloy surcharge vanopotsa izvi zvachose.
Surface finish zvinodiwa ndeimwe mhondi yakanyarara. Ra 3.2 vs. Ra 1.6? Izvi zvinogona kureva imwe denderedzwa rechokwadi rekukuya kana kunyange manual polishing. Kana iwe uchida as-cast surface yakagadzirira kupfekedzwa, maitiro ekuumba anofanira kunge asina kukanganisa. Chero jecha kusanganisirwa kana pamusoro pitting zvinoreva zvimedu. Takadzidza izvi nenzira yakaoma pane yekutanga odha yemapombi epombi. Mutengo wacho waive wakavakirwa pane yakajairwa goko mold kupera, asi mutengi aida hydraulic-yakachena nzvimbo. Takadya mari yekuwedzera kuputika kwepfuti uye kuongorora. Iye zvino, chinhu chemutsara mune quote.
Uye kushivirira. Standard casting tolerances ingano yezvikamu zvepamusoro-soro. Kubata +/-0.5mm pane 500mm ductile iron frame chinhu chimwe. Kubata +/- 0.1mm pane 100mm cobalt alloy chigaro ndeimwe pasi. Inoraira nzira yekugadzira mold, iyo yekuongorora protocol (tiri kushandisa CMM?), uye chiyero chezvikara. Kusimbisa kushivirira nechikamu cheviri kunogona nyore katatu mutengo, zvisinei ne kukanda mutengo wesimbi.
The Machining Sinkhole
Apa ndipo apo makambani akaita seyedu, ane akabatanidzwa CNC machining, ona mufananidzo wese. Chikamu chakakandwa zvakanaka chinogona kuparadzwa nekusaronga machining. Iwe unotora kukanda zvakachipa kuti uhwine basa, ipapo machining mitengo inoputika nekuti kukanda kwacho hakuna kugadzirirwa kugadzira. Isu tinosimbirira pakuongorora kweDFM. Semuyenzaniso, kusawedzera mapedhi emuchina ekurovera kunogona kutimanikidza kuvaka inodhura inodhura yetsika.
Iko kuoma kwezvinhu post-casting kunokanganisa machining mutengo zvakanyanya. Kunaya-kuomesa simbi isina tsvina yakaita se17-4PH inogona kukandwa, yobva yagadziriswa kupisa kusvika kuH900 mamiriro. Kuedza kushandisa muchina chinotyisa. Iyo machining nguva, mashandisirwo ezvishandiso, uye magetsi anoshandisa ese skyrocket. Iwo mutengo wekupedzisira mutengi aida pakutanga? Zvaenda. Ichokwadi mutengo iri mumutengo wakakwana wekushandura kubva kusimbi yemvura kuenda kune yakapedzwa, yakarongedzerwa chikamu chagadzirira kuungana.
Taive nenyaya ine special alloy gate valve body. Kukandira kwacho kwaive kwakanzwika, asi panguva yekugadzira kwakashata, takarova micro-shrinkage cavity. Hazvina kukwana kutadza kumanikidza bvunzo spec, asi zvakakwana kuti uzvidye moyo pamusoro pekuneta kwenguva refu. Tinoirasa here? Gadzirisa weld iyo (ndiyo nzira nyowani yekukodzera iyo alloy)? Mutengo wechisarudzo ichocho—mukufamba kwenguva, zvinhu, uye basa rouinjiniya—hauna kumbovapo pakutanga kukanda mutengo wesimbi hurukuro. Ndiwo mutengo wechiitiko uye kuvimbika.
Vhoriyamu uye Mutambo Wakareba
One-offs inorwadza. Mari yekuseta ye mold, iyo gating system dhizaini, yekutanga-chinyorwa chekuongorora-inoderedzwa pamusoro pechidimbu chimwe. The mutengo pachidimbu chezvikamu gumi zvinogona kuva hafu yeiyo pachikamu chimwe chete. Kune kugadzirwa kwenguva refu, tinogona kukwenenzvera hurongwa hwekunyunguduka, batch yekupisa kurapwa, uye kumisikidza yakatsaurirwa machining mitsara. Hupfumi hwechiyero ndeyechokwadi, asi inongopinda mukati mushure mechimwe chikumbaridzo. Ini ndinogara ndichiudza vatengi: kana ichi chiri prototype, mutengo uri wekuratidza maitiro. Kana iri yekugadzira, ngatitaure nezve maitiro ekugadzira mold ye-multi-cavity kushandiswa kuunza iyo unit mutengo pasi.
Mutengo wekushandisa chikara chakasiyana. Pakuumba goko, peteni yesimbi inodhura zviuru. Pakudyara kwekudyara, tenzi anofa uye majekiseni ewakisi anodhura zvakanyanya. Iyi imari yekudyara. Vamwe vatengi vanoda kuve varidzi vemidziyo; vamwe vanoda kuti tiibate tobhadhara chidimbu chemutengo wakaderera. Iko hakuna mhinduro chaiyo, chete izvo hukama uye hupenyu hwepurojekiti hunoraira. Kuparadzira mutengo wekushandisa pamusoro pehuwandu hwehupenyu hunofungidzirwa ndiyo chete nzira ine hungwaru yekufunga nezve yekupedzisira kukanda mutengo wesimbi pachikamu.
Nguva yekutungamira inowanza mutengo munhu wese anofuratira kusvika vavhunduka. Ini ndinochida mumavhiki mana zvinoreva kubhadharisa zvinhu zvekutanga zvezvigadzirwa, nguva yakawandisa yevashandi vekutanga, uye muripo wekukurumidza wekuedzwa kwerabhu uye chitupa. Iyo chaiyo yekutungamira nguva inobvumira kugadzirwa kwakarongwa, yakakwana mitoro yevira, uye kudzikama kwemhando yekutarisa. Kumhanyisa nguva dzose kunowedzera mutengo, kazhinji wakavanzwa muchimiro chenjodzi yepamusoro uye inogona kupukunyuka mhando.
The Real Quote: Total Mutengo Wevaridzi
Saka mushure memakore makumi matatu mune izvi, paQSY, takamira kupa nekukurumidza kukanda mutengo wesimbi mhinduro. Isu tinopa chirongwa chekuongorora. Inosanganisira simbi (ine mbishi zvinhu gadziriso clause yemirairo pamusoro pemazuva makumi mapfumbamwe), mutengo wekuita (shell kana inivhesiti), goho fungidziro, machining roadmap, kupisa kurapwa, kuyedza (PT, UT, RT), uye chitupa (tinopa MTC uye tinogona kuita wechitatu-bato senge ABS kana DNV). Mutengo ndiwo uwandu hwese chivimbo ichocho.
Kukundikana mudzidzisi. Isu takambodzikisira bhechi remiviri mikuru yevharuvhu mu duplex simbi isina tsvina. Isu takafungidzira imwe shrinkage rate yakavakirwa pane akafanana alloys. Takakanganisa. Iwo anokandwa akamonyaniswa zvakangoringana kuti ade hukuru hwekugadzirisa machining, kudzima muganho. Zvino, kune alloys matsva, isu tinomhanyisa diki bvunzo yekukanda kutanga. Mutengo iwoyo wekuyedza uri mukutanga quote. Hazvisi zvekuwedzera; ndiwo mutengo wokuzviwana zvakanaka.
Pakupedzisira, yakachipa mutengo ndiyo inoburitsa chikamu chinokodzera, chinoshanda, uye chinogara kune chavakada hupenyu. Hazvisi zvekutsvaga nhamba yakaderera pane spreadsheet. Inyaya yekubatana nehwani inonzwisisa kuti simbi ichangotanga. Iko kukosha kwechokwadi kuri mukushandura simbi iyoyo kuita chikamu chakavimbika, nemari yese yakavanzika inoverengerwa nekutarisirwa. Ndiwo chete mutengo wakakosha.
