Ukubunjwa kwegobolondo kuletha ukunemba, ukuphindaphinda, kanye nokuqedwa kwendawo okungenakuqhathaniswa nokusakazwa kwesihlabathi okuvamile—ikakhulukazi ezintweni eziyinkimbinkimbi ezimaphakathi, ezinevolumu ephezulu njengemizimba yama-hydraulic valve, izindlu zamaphampu, nama-winch shafts. Sikhiqize ngaphezu kwezingu-12,000 zensimbi nezinsimbi ezibunjwe ngamagobolondo eminyakeni emithathu edlule—iningi ngaphansi kokubekezelelana kobukhulu obungu-±0.15 mm kanye ne-Ra 3.2 µm as-cast surface. Lokhu akulona ithiyori. Yilokho okwenzekayo uma uhlanganisa ikhemikhali ye-phenolic resin, izinga lokushisa elilawulwayo le-core-box, kanye nokuqapha kokuqina kwegobolondo kwesikhathi sangempela esitezi sesitolo.
Isinyathelo 1: Ukulungiselela Iphethini — Ukunemba Kuqala Ngenkosi
Sisebenzisa insimbi eqinile noma amaphethini e-aluminium—alokothi abe ngokhuni noma ama-alloys ancibilike kancane—ekubumbeni amagobolondo. Kungani? Ngoba impilo yephethini ilawula ngokuqondile izindleko ngengxenye ngayinye ngamavolumu angaphezu kwamayunithi angama-500. Amaphethini ethu ahlanganisa ama-engeli asalungiswa anembile (0.5°–1.5°), imigudu yokukhipha umoya engemincane kuno-0.8 mm, nezici zokugenca ezihlanganisiwe ezisusa ukusika komgijimi ozenzelayo. Iphethini ngayinye ithola ukuqinisekiswa kwe-CMM ngokumelene ne-GD&T yekhasimende ngaphambi kokusetshenziswa kokuqala. Amanye amaklayenti asithumelela ama-prototypes aphrinte i-3D ukuze ahlolwe ukusebenza—kodwa asilokothi sikhiphe kuwo. Ukungezwani kokwanda okushisayo phakathi kwe-resin ephrintiwe nensimbi encibilikisiwe kubangela i-warpage engalindelekile kugobolondo.
Isinyathelo sesi-2: Ukwakhiwa Kwegobolondo - Ukushisa, I-resin, kanye nesikhathi Akuxoxiswana
Iphethini ifudunyezwa kuqala ibe ngu-220-250°C. Kubanda kakhulu? Ukwelashwa kwe-resin engaphelele. Kushisa kakhulu? Ukubola ngaphambi kwesikhathi kanye nokukhubazeka kwegesi. Siyigcoba ngesihlabathi esihle se-silica (40-100 mesh) exutshwe ne-2.5-5% ye-thermosetting phenolic resin. Iphethini eboshiwe izungeza ngaphakathi kwebhokisi lokulahla imizuzwana engu-10–20—inde ngokwanele ukuba igobolondo leyunifomu engu-6–12 mm yakheke. Bese iguqulwa futhi ibhakwa ku-380-420 ° C imizuzu engu-2-4. Lokho kubhaka kokugcina kuhlanganisa i-resin ngokugcwele. Yeqa, futhi igobolondo liyabhidlika ngesikhathi sokuhlanganiswa kwesikhunta. Siqapha izinga lokushisa likahhavini njalo ngemizuzwana engama-90 sisebenzisa ama-thermocouples alinganisiwe—hhayi ukufundwa kwe-ambient.
Isinyathelo sesi-3: I-Mold Assembly - Ukuqondanisa Kulawula Ukuzinza Kwe-Dimensional
Amagobolondo amabili angamahhafu anamathiselwe nge-adhesive phenolic ecushwe ukushisa noma aphiniwe ngomshini. Azikho ubumba, azikho izipikili, azikho iteyipu. Ukungaqondani kahle ngisho nokungu-0.3 mm kubonakala njengokuphazima kweso ezindaweni ezithwele ingcindezi—njengamaflange ezindlu zamasilinda noma indawo yokuhlala yezihlalo zamavalvu. Ezingxenyeni ezingalingani, sisebenzisa izikhonkwane zedowel ezinokubekezelela indawo ±0.01 mm. Ngaphambi kokuthululwa, isikhunta ngasinye esihlanganisiwe sidlula esiteshini sokuqondanisa optical. Uma igebe phakathi kwama-halves lidlula u-0.1 mm nganoma yisiphi isikhathi, liyachithwa-alisetshenzwa kabusha. Ukuhlanganisa kabusha kwethula iphutha lokuqongelela.
Isinyathelo sesi-4: Ukuthela kanye Nokuqinisa - Ukugeleza okulawulwayo Kunqanda Isiyaluyalu
- Izinga lokushisa lokuthela ligcinwe phakathi kuka-±15°C webanga elifanele—isb., 1,420–1,450°C ku-ASTM A126 I-Class B yensimbi empunga
- Insimbi ingena ngesango elingezansi ukuze kuncishiswe ukuvaleka kwe-oxide
- I-Shakeout ivela emaminithini angu-15–25 ngemva kokuthelwa—kunqunyelwe ukujiya kwesigaba ngasinye, hhayi isikhathi sewashi
- Akukho ukupholisa ngempoqo. Ukucisha ngokushesha kuqhekeza amagobolondo futhi kudala ingcindezi eyinsalela ezindlini ezinezindonga ezincane
Sake sathela izindlu zesilinda zephampu yepiston ezingama-48 ekushiseni okukodwa. Okuyisithupha kubonise ukuncipha okuncane embobeni ye-valve recess. Imbangela? Ukwehla kwezinga lokushisa kwe-ladle ngo-7°C ngesikhathi sokuthela kokugcina okungu-12. Manje singena ngemvume ngokuthulula izinga lokushisa layo yonke isikhunta esisodwa—futhi senqaba noma iyiphi inqwaba lapho ukuhlukahluka kudlula ±10°C.
Isinyathelo sesi-5: Ukubamba Kwangemva Kokusakaza - Lapho Ubuqotho Baphezulu Kuzuzwa noma Kulahlekile
Ukubumba igobolondo kunikeza umumo oseduze nenethi—kodwa hhayi ukuma kwenetha. Izindawo ezibucayi zokuvala zisadinga imishini ye-CNC. Yingakho sihlanganisa ukulingisa kanye nomshini ngaphansi kophahla olulodwa. Ukulingwa kwethu kwensimbi kuhamba ngokuqondile ukusuka ku-shakeout kuye ezikhungweni zemishini ezivundlile—asikho isitoreji esimaphakathi. Kungani? Ukumuncwa komswakama endaweni enezimbotshana kubangela izimbobo ze-hydrogen ngesikhathi sokwelashwa kokushisa okulandelayo. Siphinde futhi sigweme ukuqhuma kwezingxenye ezihloselwe izinhlelo zokusebenza ezihambisana ne-AMS 5387; imidiya engama-angular ilimaza ukwakheka okusanhlamvu okuseduze kobuso obudingekayo ukuze kuvikelwe ukukhathala ezingxenyeni zephampu ye-cobalt-alloy.
Ukubunjwa kwegobolondo kuhle kakhulu lapho ukubunjwa kwesihlabathi kungenakho ukuvumelana kanye nesabelomali sokutshala izimali-imvamisa izingxenye ezinesisindo esingu-0.5 kg kuya ku-50 kg, imiqulu yonyaka kusukela kumayunithi angu-1,000 kuya kwangu-50,000, nezinto ezihlanganisa i-ductile iron, i-carbon steel, izinsimbi ezingagqwali, ne-nickel-resist alloys. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ukubumba igobolondo asikuphathi njengenqubo ezimele kodwa njengenodi eyodwa kuluphu yokuphonswa komshini-wokuqedela oqinisekisiwe. Zonke izingxenye ezibunjwe ngamagobolondo esizithumelayo ziphethe ukulandeleka okuphelele kwempahla, ubukhulu obuqinisekiswe i-CMM, kanye nomlando wokushisa oqoshiwe—kusuka kubhake wephethini kuye ekunciphiseni kokucindezeleka kokugcina. Yileyo ndlela ama-valve okucindezela asinda ngayo emijikelezweni ye-PSI engu-20,000. Yileyo ndlela ama-winch center shaft roller agcina ngayo ukuphuma ngaphansi kuka-0.02 mm ngemva kwamahora angu-10,000. Ukunemba akufinyelelwa esinyathelweni esisodwa. Ikhiyelwe ngaphakathi—isinyathelo ngesinyathelo.
