Xa ugqobhoza '17 4 investment casting' kwibar yokukhangela, ujonge imbumbulu yomlingo-indawo eyomeleleyo, enganyangekiyo ekumdleni, kwaye entsokothileyo, zonke ngexabiso elifanelekileyo. Inyani, kwibhentshi yam, imdaka. I-17-4 PH ingenasici yinto entle, kodwa ukuyidibanisa nenkqubo yotyalo-mali ayingomsebenzi webhokisi yokukhangela. Ndibone imizobo emininzi kakhulu apho icaciswe nge-rote, ngaphandle kwencoko yokwenyani malunga nemeko yonyango lobushushu (H900, H1025, njl.) Ukuthunyelwa kweposi, okuyalela ngokusisiseko iipropati zoomatshini ozifumanayo. Kulapho uqhawulo lonxibelelwano luhlala luqala khona.
Umtsalane kunye neCaveat yangoko
Isithembiso asinakuphikiswa. Ukwenziwa kotyalo-mali ikuvumela ukuba uvelise ezo jiometri zintsonkothileyo, ezikufutshane-netha-zemilo enokuba liphupha elibi kumatshini osuka kwisitokhwe sebha, ngakumbi kwizinto ezinzima ezifana ne-17-4. Cinga iincakuba zeinjini yomoya, izixhobo zesixhobo sotyando, okanye imizimba yevalvu eneepaseji zangaphakathi. Inkunkuma incinci, eyona nto ibalulekileyo kwi-alloy yexabiso.
Kodwa nantsi i-hiccup yokuqala esebenzayo: i-fluidity. 17-4 kwimo yayo yokunyibilika ayiqhubi njengo 304 okanye 316. Ukuba uyilo lunamacandelo amancinane kakhulu okanye lufuna ukuzaliswa okuneenkcukacha kakhulu, ukungunda okunabileyo, ungadibana nokubaleka okanye ukuvalwa okubandayo. Sifunde oku kwangethuba ngebhetshi yezindlu zenzwa. I-spec yodonga yayiyi-1.2mm, kwaye sasinomlinganiselo we-50% we-scrap de sayila ngokutsha inkqubo ye-gating kwaye yandisa iqondo lokushisa lokugalela-elithi lazisa isethi yayo yeenkxalabo zesakhiwo sengqolowa. Ihlala ilingana.
Apha kulapho amava e-Foundry eba yinto engaxoxiswana ngayo. Ivenkile egalela nje iimilo zentsimbi ezilula zekhabhoni inokukhubeka kakubi nge-17-4. Ufuna iqabane eliqondayo i-metallurgy, kungekhona nje ukubumba. Ndineengxoxo ezilungileyo namaqela kwiindawo ezifana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Ukugxila kwabo ixesha elide kwi utyalo mali kunye ne-alloys ezikhethekileyo, njengoko kuphawuliwe kwindawo yazo tsngtaocnc.com, icebisa ukuba bakhe bajonga le mingeni yezixhobo ezithile ngaphambili, esisiqingatha sedabi.
Emva kokuSasa: Apho iPH Iyenzeka ngokwenene
Le yeyona nxalenye ingahoywanga kakhulu kwii-RFQs. Awuphosi 17-4 PH. Uphosa i-17-4 i-stainless kwi-solution-annealed condition. I-Precipitation Hardening iza emva. Inxalenye ye-as-cast ithambile kwaye inobuchule. Emva koko ufudumeza uyiphathe kwi-H-meko echaziweyo.
Ulawulo olubalulekileyo kukufana kobushushu kunye nomoya. Ukuba ujonge i-H900 yowona mandla aphezulu (malunga ne-190 ksi tensile), ukutenxa nge-25°F kwiziko kunokukhokelela kubunzima obungangqinelaniyo kwimveliso. Sakhe saba nebhetshi yamacandelo onxibelelano lwe-aerospace awaphumelelanga i-QC ngenxa yokuba i-thermocouple ye-furnace yayihamba; amalungu kwelinye icala itreyi adibana spec, abanye abazange. Yayisisifundo esinexabiso elikhulu lokungacingeli ukuba isixhobo sobushushu sichanile.
Kwaye machining emva kokuqina? Kuyenzeka kodwa kunzima. Ukuba ufuna ukususwa kwesinyithi esibalulekileyo, yenze kwi-annealed state post-cast, emva koko uqine. Nakuphi na ukugqiba ukukhanya emva kokuqina kufuna izixhobo ze-ceramic okanye ze-CBN, kwaye ujonge ukunxiba isixhobo njengokhetshe. Imodeli yeendleko iguquka ngokukhawuleza ngokusekelwe kolu landelelwano.
I-Dimensional Drift Ngexesha Lonyango Lobushushu
Inqaku elifihlakeleyo eliluma abaqulunqi: ukuqina kwemvula kubangela utshintsho oluncinci kakhulu, kodwa oluqikelelwayo, olunobukhulu. Ayifani nokucima intsimbi yekhabhoni, kodwa ikhona. Kwidimension ye-100mm, unokubona i-0.05mm ukuya ku-0.1mm shift. Ukuba ubambe i +/- 0.05mm ukunyamezela kwibhore enzima, kufuneka uphendule ngoku. Ngoku sihlala sakha i-shrinkage / ukukhula okuthe ngqo kwi-H-imeko kuyilo lokufa lokuphosa kwiimpawu ezibalulekileyo. Ukungahoyi oku kuthetha ukugqiba nge-in-spec imathiriyeli kodwa ngaphandle kwe-spec dimensions.
Iintsilelo zokwenyani zeHlabathi kunye noLungiso
Ndikhumbula iprojekthi yecandelo laselwandle—impompo ekwaziyo ukumelana nokudleka. Inkcazo yayiyi-17-4 PH H1150 yomxube omhle wamandla kunye nokumelana nokubola. Iicastings zazibukeka zintle, zadlula iX-reyi, kodwa zasilela kuvavanyo lwesitshizi setyuwa kwangoko kakhulu kunokuba bekulindelwe.
Oyena nobangela? Umhlwa phakathi kwegranular. Ukubonakaliswa kwexesha elide kunyango lokuguga lwe-1150 ° F, ukuba alulawulwa ngokugqibeleleyo, kunokubangela ukuba i-chromium carbides iqhube kwimida yengqolowa, ikhuphe i-chromium kwindawo. Ukulungiswa bekungatshintshi nto, kodwa ukulungelelanisa umjikelo wonyango lobushushu kunye nokuqinisekisa ukucima ngokukhawuleza emva kwenqanaba le-anneal yesisombululo. Le asiyonto yeencwadi; luhlobo lwenkqubo ye-nuance oyifundayo ekusebenziseni amawaka eenxalenye kwaye ubone ukuba yintoni eyophukayo kwaye kutheni.
Eli lixabiso lomboneleli odibanisa ukuphosa kunye nomatshini. Ukuba iziko elifanayo lilawula inkqubo yonke yekhonkco ukusuka kubumba ukuya kwindawo egqityiweyo, njengeQSY's kudityanisiwe utyalo mali kwaye CNC Machining ukunikela, ukulungisa ingxaki kuba yinkqubo evaliweyo. Awutyhola icaster, kulandele iheat treatment, kulandele i-machinist. Ingxelo ikhawuleza kwaye ithathelwe amanyathelo.
UyiSebenzisa nini, Uhamba nini
Ke, ingaba '17 4 utyalo-mali' yenza ingqiqo nini? Okokuqala, xa ukuntsonkotha kuphezulu kwaye iindleko zomatshini ukusuka kokuqinileyo kuya kuba nzima. Okwesibini, xa ufuna indibaniselwano yokumelana ne-corrosion ephakathi kunye namandla aphezulu kwindawo efanayo. Okwesithathu, xa unomthamo wokuthethelela ixabiso lesixhobo se-ceramic mold.
Kufuneka uphinde ucinge nini? Kwiimilo ezilula-i-flange eyisiseko okanye ibha echanekileyo. Yimatshini nje. Kwizicelo ezifuna ukunganyangeki komhlwa kwimeko yeasidi ecuthayo, i-stainless eyahlukileyo inokuba ngcono. Kwaye kwinkonzo yobushushu obuphezulu, khumbula iimeko ze-H ziphelelwa ngamandla ngaphezu kwe-600°F.
Kukwafanelekile ukubuza ngezinye iialloys. Ngamanye amaxesha, i-duplex stainless stainless investment cast and machined inokubonelela ngexabiso elingcono/umlinganiselo wokusebenza kwisicelo. Injineli elungileyo yesiseko iya kuba nale ngxoxo nawe, kunokwamkela nje ushicilelo.
I-Supplier Landscape kunye ne-Pragmatic View
Imakethi izele zii-Foundries ezibanga isakhono. Umahluli kwincoko yobugcisa. Xa ndijonga imvelaphi yomthengisi, iminyaka engama-30 kwishishini, njengoko i-QSY ikhankanya, imiqondiso mhlawumbi baye bajongana nezinto ezininzi kunye nenkqubo yenguquko. Kuthetha ukuba kusenokwenzeka ukuba bazibonile iiprojekthi ezili-17-4 ezisebenzayo kunye nezingazange zisebenze.
Ukukhankanya kwabo ukusebenza kunye ialloys esekwe cobalt kwaye ialloys esekwe nickel ngummeli olungileyo. Ukuba bayakwazi ukusingatha ukugalelwa kunye nolawulo lwenkqubo yezo superalloys, i-17-4 ilungile ngaphakathi kwe-wheelhouse yabo ye-metallurgical. Umceli mngeni udla ngokuba kukungaguquguquki kokuqhutywa kwemveliso, hayi ukwenza isampulu enye elungileyo.
Ekugqibeleni, ukukhankanya '17 4 utyalo mali' sisiqalo sencoko, hayi isiphelo. Idibanisa imathiriyeli enobuqili kunye nenkqubo eethe-ethe. Impumelelo ixhomekeke ekuqondeni ukuba ukuhlangana-imiceli mngeni yokungabikho kwamanzi, ulawulo lobushushu obungaxoxisiyo, kunye ne-dimensional nuances. Lungisa olo budlelwane kunye nevenkile evakalayo yobugcisa, kwaye inkqubo ihambisa iindawo eziphantse zingenzeki ukwenza nayiphi na enye indlela. Yenza impazamo, kwaye ushiyeke ne-scrap ebiza kakhulu, enzima kakhulu.
