Ukubunjwa kweqokobhe kuzisa ukuchaneka, ukuphinda-phinda, kunye nokugqiba komphezulu ongenakuthelekiswa nokuphosa kwesanti yesiqhelo-ingakumbi kubunzima obuphakathi, izixhobo ezinomthamo omkhulu onje ngemizimba yevalvu esebenza ngoxinzelelo lwehydraulic, izindlu zempompo, kunye ne-winch shafts. Siye savelisa ngaphezulu kwe-12,000 yentsimbi eyenziwe ngegobolondo kunye neentsimbi zentsimbi kwiminyaka emithathu edlulileyo iyodwa-ininzi ingaphantsi kwe-± 0.15 mm ukunyamezela komlinganiselo kunye neRa 3.2 µm njenge-cast surface. Oku akuyothiyori. Yinto eyenzekayo xa udibanisa i-phenolic resin chemistry, iqondo lobushushu lebhokisi elawulwayo, kunye nexesha lokwenyani lokujonga ubukhulu beqokobhe kumgangatho wevenkile.
Inyathelo loku-1: ULungiselelo lwepateni — Ukuchaneka kuqala kuMphathi
Sisebenzisa iipateni zentsimbi eqinile okanye i-aluminiyam-engaze ibe ngamaplanga okanye i-alloys encibilikayo-ekubumbeni iqokobhe. Ngoba? Ngenxa yokuba ubomi bepateni bulawula ngokuthe ngqo ixabiso ngenxalenye nganye kwimithamo engaphezulu kweeyunithi ezingama-500. Iipateni zethu ziquka i-angles eyidrafti echanekileyo (0.5 ° -1.5 °), i-grooves ye-vent engekho ngaphantsi kwe-0.8 mm, kunye neempawu ezidibeneyo zokungena ezisusa ukusika umgijimi owenziwe ngesandla. Ipateni nganye ifumana ukuqinisekiswa kweCMM ngokuchasene nomthengi we-GD&T ngaphambi kokusetyenziswa kokuqala. Abanye abathengi basithumelela iiprototypes eziprintiweyo ze-3D zovavanyo olusebenzayo-kodwa asizange silahle kuzo. Ukungahambelani kolwandiso lobushushu phakathi kwentlaka eprintiweyo kunye nesinyithi esinyibilikisiweyo kubangela i-warpage engalindelekanga kwiqokobhe.
Inyathelo lesi-2: Ukwenziwa kweShell-Ubushushu, i-Resin, kunye nexesha alixoxisi
Ipateni ifudunyezwe ukuya kuma-220–250°C. Kubanda kakhulu? Ukunyangwa kwe-resin engaphelelanga. Kushushu kakhulu? Ukubola kwangaphambili kunye neziphene zegesi. Siyifake ngesanti ye-silica ecocekileyo (i-40-100 mesh) exutywe kunye ne-2.5-5% ye-thermosetting phenolic resin. Ipateni egqunyiweyo ijikeleza ngaphakathi kwebhokisi yokulahla imizuzwana eyi-10-20-inde ngokwaneleyo ukuba iqokobhe eliyi-6-12 mm lenze iyunifomu. Emva koko i-inverted kwaye ibhaka kwi-380-420 ° C imizuzu emi-2-4. Olo kubhaka lokugqibela ludibanisa i-resin ngokupheleleyo. Yitsibe, kwaye iqokobhe liyaqhekeka ngexesha lokuhlangana kokungunda. Sibeka iliso kwiqondo lobushushu be-oveni rhoqo ngemizuzwana engama-90 sisebenzisa ii-thermocouples ezilinganisiweyo-hayi ufundo olukwindawo ephakathi.
Inyathelo lesi-3: INdibano yokuMbumba - Ulungelelwaniso luyalela uzinzo lweDimensional
Iigobolondo ezimbini zesiqingatha zifakwe kwi-adhesive phenolic adhesive heat-activated okanye iphiniweyo ngomatshini. Akukho ludongwe, akukho zikhonkwane, akukho tape. Ukungahambi kakuhle kwe-0.3 mm kubonisa njenge-flash kwiindawo ezithwele uxinzelelo-njengeeflange zezindlu ze-cylinder okanye izihlalo zokuhlala zevalve. Kwiindawo ezi-asymmetrical, sisebenzisa izikhonkwane zedowel ezine-± 0.01 mm ukunyamezela kwendawo. Ngaphambi kokugalelwa, isikhunta ngasinye esidibeneyo sidlula kwisikhululo sokulungelelaniswa kwe-optical. Ukuba i-gap phakathi kwama-halves idlula i-0.1 mm nakweyiphi na indawo, iyachithwa-ayiphinda isetyenziswe. Ukudityaniswa kwakhona kwazisa impazamo eyongezelekayo.
Inyathelo lesi-4: Ukugalela kunye nokuQinisekisa - Ukuqukuqela okuLawulweyo kunqanda isiphithiphithi
- Iqondo lobushushu lokugalela ligcinwe ngaphakathi kwe ± 15°C loluhlu olulolona lufanelekileyo—umz., 1,420–1,450°C kwi-ASTM A126 yoKdila B lwentsimbi engwevu.
- Isinyithi singena ngesango elisezantsi ukuze kuncitshiswe ukuvaleka kweoksidi
- I-Shakeout iyenzeka kwimizuzu eyi-15-25 emva kokugalela-ixesha ngokwecandelo ngalinye, hayi ixesha lewotshi
- Akukho kupholisa ngenkani. Ukucima okukhawulezileyo kuqhekeza amaqokobhe kwaye kubangela uxinzelelo olushiyekileyo kwizindlu ezinodonga olucekethekileyo
Sakha sagalela izindlu zesilinda zepiston ezifanayo ezingama-48 kubushushu obunye. Ezintandathu zibonise i-micro-shrink kwi-valve port recess. Unobangela weengcambu? Ukuhla kwe-7 ° C kwiqondo lokushisa kwi-ladle ngexesha lokugalelwa kwe-12 yokugqibela. Ngoku sigalela i-temp yayo yonke into ebumbayo-kwaye siyala nayiphi na ibhetshi apho umahluko ungaphezu kwe-±10°C.
Inyathelo lesi-5: Ukuphatha emva kokuCasa-Apho imfezeko yoMphezulu iphunyelelwe okanye ilahleke
Ukubumba iqokobhe kunika imilo ekufutshane nenethi—kodwa hayi umnatha. Iindawo zokutywina ezibalulekileyo zisafuna ukwenziwa kwe-CNC. Yiyo loo nto sidibanisa ukuphosa kunye noomatshini phantsi kophahla olunye. Iintsimbi zethu zihamba ngokuthe ngqo ukusuka kwi-shakeout ukuya kumaziko omatshini athe tye-akukho vimba ophakathi. Ngoba? Ukufunxwa kobumanzi kwindawo enemingxuma kubangela imibhobho yehydrogen ngexesha lonyango olulandelayo lobushushu. Kwakhona siyakuphepha ukudutyulwa kwiindawo ezimiselwe usetyenziso oluhambelana ne-AMS 5387; Imithombo yeendaba e-angular yonakalisa ubume benkozo obusondeleyo kumphezulu obufunekayo ukuxhathisa ukukhathala kumacandelo empompo ye-cobalt-alloy.
Ukubunjwa kwe-Shell kugqwesa apho ukuchithwa kwesanti kungabikho ukuhambelana kunye nohlahlo lwabiwo-mali olunzima-ngokuqhelekileyo kwiindawo ezinobunzima be-0.5 kg ukuya kwi-50 kg, imiqulu yonyaka ukusuka kwiiyunithi ze-1,000 ukuya kwi-50,000, kunye nezinto ezibandakanya i-ductile iron, i-carbon steel, i-stainless steels, kunye ne-nickel-resist alloys. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siphatha ukubumba iqokobhe njengenkqubo yokuzimela kodwa njengenodi enye kwi-loop eqinisekisiweyo yokuphosa-i-machining-finishing. Yonke into eyenziwe ngamaqokobhe esiyithumelayo iphethe umkhondo ogcweleyo wezinto ezibonakalayo, imilinganiselo eqinisekisiweyo yeCMM, kunye nembali ebhaliweyo ye-thermal-ukusuka kwipatheni yokubhaka ukuya kwisiqabu sokugqibela soxinzelelo. Yileyo ndlela iivalvu zoxinzelelo ezisinda ngayo kwimijikelo ye-PSI engama-20,000. Yiloo ndlela i-winch centre shaft rollers igcina ngayo ukuphuma ngaphantsi kwe-0.02 mm emva kweeyure ze-10,000. Ukuchaneka akufezeki kwinyathelo elinye. Itshixiwe-inyathelo ngenyathelo.
