Me yasa Haɗin gwiwar masana'antar 17-4PH ya gaza - da kuma yadda ƙungiyar Qingdao ɗaya ke warware shi kullun
Yawancin injiniyoyin da ke samar da sassan 17-4PH sun bugi bango ɗaya: mai siyarwa ya yi alkawarin ƙarfin H900 da yarda da ASTM A564, sannan yana ba da taurin mara daidaituwa a cikin tsari-ko mafi muni, ƙananan fasa bayan magani mai zafi. Mun gan shi a cikin gidaje na bawul ɗin hydraulic da aka ƙi tsakiyar taro, a cikin rigunan famfo na piston da ke kasawa a 3,200 psi, a cikin ginshiƙan cibiyar winch suna yaƙe yayin niƙa na ƙarshe. Tushen tushen ba abu mara kyau ba ne - yana da iyawar guguwa. A gaskiya 17-4PH masana'anta dole ne ya sarrafa ƙarfe, injina, da sarrafa zafin jiki a ƙarƙashin rufin ɗaya. Ba wai kawai "mai iya" ba -amma tabbatacce, mai iya ganowa, mai maimaitawa.
Ikon Ƙarfe Ya Fara Kafin Fara Mashin ɗin
17-4PH ba kawai "bakin karfe da jan karfe." Ƙarfin lalacewa da 1,100 MPa ƙarfi ya dogara ne akan madaidaicin motsin tsufa: gajere, kuma hazo ba sa samuwa; sun yi tsayi da yawa, kuma suna da ƙarfi, taurin ƙasƙanci. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., kowane billet 17-4PH ya zo tare da cikakkun rahotannin gwajin niƙa-wanda aka tabbatar da AMS 5604 ko ASTM A564 Grade 630-kuma yana samun tabbaci mai shigowa: gwajin walƙiya, bincike na PMI, da mafita-anneal zafin jiki yana da inganci.
Ba mu fitar da maganin zafi ba. Kayan aikin mu mai yarda da ISO yana gudanar da tanderun yanayi mai sarrafawa tare da daidaiton ± 2°C, sannan kuma ana sanyayawar helium don murkushe samuwar delta ferrite. Ana shiga zagayowar tsufa a kowace kuri'a-ba kowane motsi ba-tare da taswirar thermocouple na ainihi. Sakamako? Bambancin taurin yana tsayawa a cikin HRC 38-40 don yanayin H900, an tabbatar da shi akan maki uku kowane sashi ta amfani da ma'aunin Rockwell B da C. Babu zato. Babu sake yin aiki.
Daidaitaccen Machining Mai Girmama Hatsi
17-4PH aiki-hardens m. Madaidaitan hanyoyin kayan aiki suna haifar da saurin lalacewa, alamomin zance, da ɗigon ƙira-musamman a cikin gidajen silinda mai katanga ko jikin bawul ɗin matsi mai zurfi. Ƙungiyarmu ta CNC tana amfani da dabarun niƙa mai girma tare da PVD mai rufaffen carbide abun da ake sakawa, roughing daidaitacce wanda ke rage ƙarfin radial da 35%, da tsarin rigingimun kayan aiki waɗanda aka ƙididdige su don 12,000 rpm spindles.
Muna injinan fasali masu mahimmanci *bayan* tsufa-ba a da ba. Me yasa? Domin rage jin daɗin damuwa bayan zafi-jiyya yana canza sashin lissafi. Haƙuri na 0.015 mm akan gidan diamita na mm 200 ya zama wanda ba za a iya samu ba idan kun riga kun tsufa sannan kuma ku tsufa. Tsarin mu yana kulle GD & T iko zuwa yanayin ƙarshe: ƙarewar ƙasa Ra ≤ 0.8 μm akan fuskokin rufewa, juriya na matsayi ± 0.02 mm akan ramuka masu hawa, kuma ana kiyaye ta da hankali zuwa 0.01 mm akan mujallolin shaft - duk an auna su akan wani calibrated Zeiss CONTURA G2 CMM tare da haɓaka yanayin zafi.
Inda Casting Ya Haɗu da Ƙwararrun Ƙarfin Alloy
Wasu aikace-aikacen 17-4PH suna buƙatar ƙaƙƙarfan siffa-tallafi wanda ba zai yuwu ba tare da hannun jari: tushen famfo asymmetric, haɗaɗɗen tashoshi masu sanyaya a cikin manifolds, ko tubalan silinda mai tashar jiragen ruwa da yawa. Wannan shine inda samfurin iyawar mu biyu ke da mahimmanci. Mun jefa 17-4PH ta hanyar simintin saka hannun jari-ba yashi ba-don cimma ƙarancin ƙasa kamar Ra 3.2 μm da kwanciyar hankali a cikin ± 0.3% na girman ƙima.
Amma yin simintin 17-4PH yana gabatar da haɗari: raguwar porosity, rarrabuwa a sassa masu kauri, da ƙwanƙwasa idan farashin sanyaya ya ɓace daga 5-10 ° C/s. Ƙungiyar mu ta kafa tana sa ido kan ƙarfafawa tare da hoton zafi, daidaita ƙirar gating ta amfani da simintin MAGMASOFT, kuma yana tabbatar da kowane zuba tare da gwajin ultrasonic (ASTM E114) da kuma macro-etch dubawa. Kowane simintin yana ɗaukar keɓaɓɓen ID ɗin zafi mai alaƙa da rahoton sinadarai, log ɗin zagayowar zafi, da sakamakon NDT—wanda za a iya gano shi gabaɗaya zuwa nau'in ɗanyen abu.
Tabbatar da Gaskiyar Duniya-Ba Yarda da Takarda Kawai ba
Biyayya yana nufin komai ba tare da mahallin ba. Lokacin da OEM na Turai ke buƙatar gidaje 17-4PH piston famfo silinda don famfunan ruwa na teku, sun ayyana ASTM A564, H900, da juriya na fesa gishiri ≥1,000 a kowace ASTM B117. Amma ba su fayyace yadda za a iya sarrafa 12-mm-kauri mai kauri flange-zuwa ganga-sanannen tashin hankali.
Mun gudanar da yin ƙirar gajiyar FEA, mun ƙara leƙen harbe-harbe na gida zuwa radius na fillet, da ingantacciyar tsawaita rayuwa tare da gwajin bugun motsi na hydraulic 500,000 a 4,500 psi. Sassan sun wuce. Mafi mahimmanci, sun yi jigilar kaya akan jadawali-saboda tsarin tsarin mu na karkata ne ya tsara tsarin kula da zafi, injina, da gamawa a layi daya, ba jerin ba. Lokacin jagorar samfur: kwanaki 18. Matsakaici-girma (500 inji mai kwakwalwa): kwanaki 32. Duk tare da cikakkun takaddun PPAP, gami da nazarin MSA da tsare-tsaren sarrafawa.
Idan aikin ku na 17-4PH na gaba yana buƙatar daidaiton girma a ƙarƙashin matsin lamba, juriya na lalata a cikin kafofin watsa labarai masu tayar da hankali, da rashin haƙuri don abubuwan ban mamaki na sarkar samarwa - fara da abokin tarayya wanda ke ɗaukar kimiyyar allo a matsayin wanda ba za a iya sasantawa ba, ba na zaɓi ba. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki a matsayin gaskiya 17-4PH masana'anta: hadedde a tsaye, da horo na ƙarfe, da kuma ƙera don ingantaccen manufa. Hanyarsu ba kawai ta haɗu da ƙayyadaddun bayanai ba - yana tsammanin yanayin gazawa kafin kayan aikin farko ya taɓa ƙarfe.
