Lapho onjiniyela becacisa amagiya amaphampu asebenza ngogesi, ama-winch drive, noma ama-valve actuators anengcindezi ephezulu, abavamile ukuqala nge-powder metallurgy. Iningi lifinyelela kuqala ngensimbi efojiwe noma izikhala zomshini we-CNC—kuze kube yilapho ukuqina kohlangothi, ukumelana nokuguga, kanye nesamba sezindleko ngengxenye ngayinye kuqala ukushintsha ukubala. Yilapho ozinikezele ipowder metallurgy gears factory iyeka ukuba ngenye indlela—futhi iba ukuphela kokukhetha okunengqondo.
Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sikubonele lokhu mathupha kuwo wonke amazwekazi amathathu. Ipompo ye-OEM yaseNyakatho Melika yehlise imvamisa yokushintshwa kwegiya ngo-40% ngemuva kokusuka ku-ayina ene-sintered kuya kumagiya e-AMS 5387 cobalt alloy PM ezindlini zawo zephampu yepiston yomjikelezo omkhulu. Umhlinzeki wezimoto zobunjiniyela baseYurophu unciphisa isikhathi sokuhola ngezinsuku eziyi-11—hhayi ngokusheshisa imishini, kodwa ngokuqeda imisebenzi emihlanu yesibili ngokuphelele. Lezi bekungezona izinzuzo zethiyori. Aqhamuke ekulawuleni ukuminyana okuphakathi kokuthi ±0.02 g/cm³, ebambe ukubekezelela kobubanzi bephimbo ukuya ku-±0.015 mm kumagiya angu-16-module spur, futhi afinyelele ubulukhuni obuphezulu Ra ≤ 0.8 µm—njengoba-sintered.
Ukunemba kweqiniso ku-powder metallurgy akukhona ukucindezela uthuli lwensimbi nokulibiza ngokuthi kwenziwe. Iqala ngesitifiketi sempahla eluhlaza: iqoqo ngalinye le-T800 cobalt-based powder lithwala ukulandeleka okugcwele kumingcele ye-atomization, okuqukethwe komoya-mpilo (≤120 ppm), nokusabalalisa usayizi wezinhlayiyana (D50 = 18–22 µm). Siyenqaba izimpushana ngaphandle kwalelo windi—ngisho noma umphakeli enikeza isaphulelo sika-15%. Kungani? Ngoba ukushintshashintsha kokuminyana okungu-0.3% kumsuka wegiya kudala ukwehla okungu-22% empilweni yokukhathala okugobayo ngaphansi kokulayisha umjikelezo. Siqinisekisa lokho nsuku zonke sisebenzisa isimiso sika-Archimedes kanye nokuskena kwe-Micro-CT kumasampula cores—hhayi nje ezingxenyeni zokugcina, kodwa ezigabeni eziluhlaza, ezinsundu, kanye ne-sintered.
Isitezi sethu sokukhiqiza sihlanganisa amakhono amathathu angaxoxiswana iningi lezitolo ze-PM liwaphatha njengezinsizakalo ezihlukene:
- Ukulawulwa kwe-atmosphere sintering ngokulawula okunembe kwamazolo (−40°C kuya ku-25°C) kanye nemixube ye-nitrogen/hydrogen—okubalulekile ekugcineni ukuhlakazeka kwe-carbide kuma-cobalt alloys ngaphandle kwe-decarburization
- I-in-die coining isetshenziswe ngesikhathi sokukhishwa, hhayi njengenqubo yangemuva, iletha ukulawulwa kokuphuma kwe-±0.008 mm kumabhore egiya ngaphandle kokugaya kabusha
- Ukwelashwa kokushisa okusebenzayo kuhlanganiswe ngokuqondile ngemva kokucwilisa: ukuvala isixazululo ku-1180°C + ukucisha ngokushesha kwe-AMS 5387, kulandele ukuguga ku-845°C—kufinyelele i-Rockwell C 42–46 kuyilapho kulondolozwa ijiyomethri yezinyo legiya.
Abanye bangase baphikise ngokuthi amagiya enziwe ngomshini we-CNC anikeza isiphetho esihle kakhulu. Iqiniso - kumajiyometri alula. Kodwa lapho ikhasimende licela igiya le-helical elinamazinyo angu-22, amamojula angu-3.5 eline-engeli ye-helix engu-25°, i-spline yangaphakathi, ne-press-fit bore—omshini we-T800 bar eqinile—izibalo ziyashintsha. Isivuno sezinto ezibonakalayo sehla safika ku-38%. Isikhathi somjikelezo sidlula imizuzu engama-92. Amathuluzi okugqoka ama-spikes emva kwezingxenye ezingu-17. Inqubo yethu ye-PM iletha igiya elifanayo emjikelezweni owodwa wokuhlanganisa, ngokusetshenziswa kwezinto ezibonakalayo okungu-91%, isikhathi se-takt esiyimizuzu engu-14, kanye nokusetshenziswa kwamathuluzi okuyiziro phakathi kwamaqoqo. Igiya lihlangana ne-AGMA Q12 ne-ISO 1328-1 Class 7—ngaphandle kokugaya.
Asiphushi i-powder metallurgy lapho kungafanele khona. Uma uhlelo lwakho lokusebenza ludinga ukuhlehla kwegiya kuqine kuno-0.02 mm ezingeni lokushisa lokusebenza, noma uma i-spectrum yomthwalo wakho ihlanganisa ama- shock pulses angaphezu kuka-3× we-torque elinganiselwe, sizokutshela kusengaphambili: i-forged + finish-ground kuseyiyona ndlela yakho engcono kakhulu. Kodwa ngokugijima kwevolumu emaphakathi (ama-pcs angu-500–10,000/ngonyaka), izindawo zokugqoka okuphezulu (≥200 MPa ingcindezi yokuxhumana), noma amasistimu lapho isisindo, umsindo, noma umhlangano oyinkimbinkimbi—PM iletha i-ROI elinganisekayo. Omunye umenzi wemishini kawoyela waseNingizimu-mpumalanga ye-Asia washintsha izithwali zegiya ezishiselwe eziyizicucu eziyi-12 wafaka imihlangano ye-PM yocezu olulodwa. Isisindo sehle ngo-37%. Umsebenzi womhlangano wehle usuka kumaminithi angu-42 waya ku-9. Futhi i-vibration amplitude ku-1800 rpm yehle ngo-63%—kukalwa endaweni nge-laser Doppler vibrometry.
Yini ehlukanisa umuntu onekhono ipowder metallurgy gears factory kusuka esitolo sabezindaba zempahla akuwona umthamo-ukuhlaziywa kokwehluleka okukhethekile kwesizinda. Lapho igiya leklayenti lehluleka ngaphambi kwesikhathi empompini engaphansi kolwandle, asizange nje silishintshe. Sihlukanise iyunithi ehlulekile, amaqoqo e-porosity emephu ngokumelene ne-contours ye-stress, ukufakwa kwe-oxide okuhlobene namalogi womkhathi we-sintering, futhi saklama kabusha iphethini yokungenisa umoya we-die cavity. Umphumela: Ukwehluleka kwenkundla okuyiziro ezinyangeni eziyi-18 namahora okusebenza angama-47,000.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza kusukela ku-Qingdao—hhayi njengendawo yokusungula inhloso evamile, kodwa njengozakwethu wengxenye enembayo wamasistimu lapho amagiya engezona nje izingxenye ezihambayo. Ziyizinto zokuvimbela ingcindezi. Amahange okudlulisa i-torque. Izixhumanisi ezibucayi zokukhathala. Siwanjiniyela ngaleyo ndlela—kusuka ekukhetheni impushana ngokusebenzisa ukuqinisekiswa kokusebenza. Isikhungo sethu siphethe izitifiketi ze-ISO 9001:2015 kanye ne-AS9100D, kodwa okubaluleke nakakhulu ukuthi sizisebenzisa kanjani: yonke imikhumbi yegiya enemibiko egcwele yobukhulu, amalogi okuqina, amaphrofayili okuqina ezinyo kanye nempande, kanye nama-micrographs ensimbi ezingxenye ezibalulekile.
Ikusasa lokwenziwa kwamagiya anembe kakhulu alikhethi phakathi kwe-PM kanye nokwenza imishini. Iwahlanganisa ngobuhlakani—usebenzisa i-PM ukuze uthole ijiyomethri eseduze nenethi kanye nobuqotho besakhiwo, bese usebenzisa ukuqeda okuncane, okuhlosiwe kwe-CNC kuphela lapho okudingayo khona. Leyo ndlela exubile—i-casting-machining synergy—yilapho sigxile khona ku-R&D manje. Hhayi ukubuyisela izinqubo, kodwa ukuqeda ukuyekethisa.
