Ukubunjwa kwentsimbi kuhambisa ukuchaneka okuphindaphindwayo apho ukuphosa kwesanti kuhexa-ingakumbi kwiindawo ezinje ngeevalvu zoxinzelelo lwehydraulic, izindlu zepiston pump cylinder, kunye nemilomo ye-cobalt-alloy efuna unyamezelo oluqinileyo, ulwakhiwo olungaguqukiyo, kunye ne-zero dimensional drift kwiibhetshi. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siye saqhuba ngaphezulu kwe-12,000 yemijikelezo yokubumba isinyithi ukususela ngo-2018-kungekhona njengomsebenzi wethiyori, kodwa ukusombulula iintsilelo zokwenene: i-warping kwi-T800 iziseko zempompo ye-alloy, i-porosity kwi-AMS 5387 ye-valve yokushisa i-valve yokuphumelela i-valve yokushisa i-valve ye-health. Ukusilela ngakunye kwasifundisa into eshiyiweyo ziincwadi zesikhokelo: ulawulo lobushushu lokungunda lubaluleke ngaphezu kobunyulu bengxubevange; uyilo lokudinwa lulawula ubomi bokudinwa ngaphezu kokuqina; kunye nokuhambelana kokushisa kwangaphambili kuthintela i-73% ye-scrap yokuqala kwi-high-nickel castings.
Kutheni iMetal Mold Casting iphumelela xa ukuchaneka kungaxoxiswana
Ukuchithwa kwesanti kusebenza kwi-volume ephantsi, i-low-tolerance parts. Kodwa xa icandelo lakho kufuneka libambe ±0.05 mm kwi-320 mm yedayamitha ye-cylinder yendlu-okanye isinde kwi-15,000 psi pulsation kwindibano yempompo yendawo yeoli-ukubunjwa kwesinyithi kuba yeyona ndlela isebenzayo. Intsimbi yayo eyomeleleyo okanye ukubumba kwentsimbi yokuphosa kuxhathisa ukwanda kwe-thermal, ukuhambisa amazinga okupholisa afanayo, kunye nokuphelisa ukungafani okukhoyo kwisanti eboshiweyo. Silinganisa le mihla: i-iron castings yethu ibonisa i-42% ngaphantsi kwe-shrinkage ye-shrinkage kuneendawo ezilinganayo ze-sand-cast, kunye neziseko zethu zempompo zensimbi ezingenasici zifezekisa i-Cpk ≥1.67 kwi-callouts ye-GD & T ebalulekileyo-ngaphandle kwe-machining yesibini.
Intlawulo ayikho nje imilinganiselo. Iimbumba zesinyithi zivumela ukuqina kolwalathiso. Siqhelanisa ukubumba ngokuthe nkqo kwizindlu zepiston, sinyanzelela intsimbi yokutya phezulu ukusuka kwizinyusi ezisezantsi. Oku kuphelisa i-centerline porosity kumacandelo atyebileyo-indawo yokungaphumeleli engapheliyo kwiindawo ezilinganayo zesanti. Kwii-alloys ze-cobalt-nickel ezifana ne-AMS 5387, olo tshintsho olulodwa lunciphisa i-voids yangaphakathi nge-91% kuphicotho lwe-NDT yomntu wesithathu. Akukho kugquma, akukho sibophelelo, akukho ngqikelelo-ifiziksi kuphela, elawulwayo.
Apho Isilela khona—Nendlela Yokuyiphepha Imigibe
Abanye bathi ukubunjwa kwesinyithi akuguquguquki kakhulu kwimitsi ephantsi yomthamo. Banyanisile-ukuba uyiphatha njengokugalela isanti. Kodwa ukuguquguquka kuvela kuyilo lwenkqubo, hayi izinto zokubumba. Sihambise iiprototypes ezisebenzayo kwiintsuku ezili-11 sisebenzisa iimolds zentsimbi ezikhawulezayo kwimibhobho ye-T800 yealloy. Iqhinga? Ukufakwa kwe-mold pre-qualified molds machined from H13 tool metal, pre-hardened to 48 HRC, with integrated thermocouple ports for real-time monitoring for real-time cavity. Loo datha izondla ngokuthe ngqo kumlinganiso wethu wokuqinisa-ke ukugalela okwesibini kuhambelana neyokuqala, nakwiiyunithi ezingama-50.
Umgibe weendleko zangempela awukho isixhobo-kukungahoyi ukusebenzisana kwe-metallurgical. Sake safumana umzobo ochaza "i-ASTM A487 Grade CA6NM stainless steel" kwisiseko sempompo ye-subsea. Inkcazo yayichanekile. Ukubulawa bekungeyiyo: ukupholisa komngundo okungalawulekiyo kubangele imvula yesigaba se-sigma ecaleni kwemida yeenkozo. Isivuno sehle saya kutsho kuma-38%. Isisombululo? Sitshintshele kwi-controlled-air quenching ngaphakathi kwe-mold cavity, emva koko songeza isisombululo se-1050 ° C esinesisombululo sokucinywa kwamanzi. Isivuno sitsibe ukuya kuma-94%. Isifundo: ukubunjwa kwesinyithi akuthathi indawo yoqeqesho lwe-metallurgical-yandisa iziphumo zayo.
I-QINGDAO QIANGSENYUAN Idibanisa njani ukuCasa kunye noMsebenzi wokwenyani weHlabathi
Asahluli ukuphosa kumsebenzi. Iinjineli zethu ziphonononga yonke isakhelo se-GD&T-hayi esenzela ukwenziwa kuphela, kodwa kwiindlela zomthwalo wenkonzo. Umzimba wevalve yoxinzelelo ayiyomilo nje; ngumzila woxinzelelo. Ke sishumeke iigeyiji zoxinzelelo kwimold yemveliso ukwenza imephu yemitha ye-thermal ngexesha lokuqina. Loo datha isixelela apho uxinzelelo olushiyekileyo luya kugxila khona-kwaye apho ukongeza khona isiqabu somatshini wasekhaya okanye imijikelo yokuphola emva koxinzelelo.
- Imilomo ye-cobalt-alloy: Faka kwimolds ye-H13 eshushu ngaphambili kwi-550 ° C, emva koko ipholile emoyeni ukunqanda ukwakheka kwe-intermetallic brittle.
- Ubunjineli befestile yeewintshi zemoto: Iicores ezibunjiweyo zesanti ezifakwe kubumba lwentsimbi kulawulo lwejiyometri exutyiweyo—iqokobhe langaphandle eliqinileyo, umngxuma ongaphakathi ontsonkothileyo.
- Izindlu ze-hydraulic cylinder: Yenziwe ngokuthe ngqo ukusuka kwimeko ye-cast-cast kusetyenziswa ngaphakathi kwindlu ye-5-axis CNC-akukho kulungiswa kwakhona, akukho kutshintsha kwedatum
Oku kudityaniswa kunciphisa ixesha lokukhokela ngama-30% ngokuchasene nokuphosa ngokulandelelanayo + ababoneleli ngomatshini. Okubaluleke ngakumbi, iqinisekisa ukulandeleka: iqashiso ngalinye liphethe imbali epheleleyo ye-thermal, uhlalutyo lweekhemikhali, kunye neengxelo zokuhlola ze-CMM-ezidityaniswe kwii-certs zezinto eziluhlaza ezivela kwii-mills ezivunyiweyo.
Ukukhetha Iqabane Lakho—Ngaphezu Kwencwadana Enemifanekiso
Buza nawuphi na umthengisi malunga nesakhono sabo sokubunjwa yintsimbi. Emva koko ubuze okulandelayo okuthathu: Yeyiphi i-mold yakho ede kakhulu ye-AMS 5387? Uqinisekisa njani ubushushu bomngundo phambi kokugalelwa ngakunye? Ngaba ungabelana ngengxelo yamva nje ye-FAI ebonisa i-cast vs. imilinganiselo yokugqibela kwinxalenye eneempawu ezi-≥5 ezibalulekileyo ze-GD&T?
EQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., iimpendulo zethu zinokulinganiswa: 8,200 igalela kumngundo omnye we-T800; ukuqinisekiswa kwe-infrared pyrometer kumanqaku e-3 kwi-cavity nganye, ifakwe ngokuzenzekelayo; kunye neengxelo ze-FAI ezibonisa i-0.012 mm iavareji ukutenxa kwi-12-point cylindrical runout kwisiseko sempompo ye-280 mm. Asipapashi ezi zinto njengentengiso-kodwa ngenxa yokuba impumelelo yokubumba isinyithi ihlala ngamanani, hayi izithembiso.
Kwizicelo apho ukusilela kuthetha ukuphelelwa lixesha, umngcipheko wokhuseleko, okanye ukungathotyelwa kwemithetho—ukubunjwa kwesinyithi ayisiyiyo inketho. Yisiseko. Kwaye iqabane elifanelekileyo lenza umahluko phakathi kokuchaneka okuphindaphindwayo kunye nokusebenza kwakhona okunexabiso elikhulu.
