Lokacin da injiniyoyi suka ƙayyade masana'anta na simintin ƙarfe na simintin ƙarfe don abubuwan masana'antu masu juriya, ba kawai suna yin odar ƙarfe ba - suna tabbatar da amincin aiki a ƙarƙashin matsin lamba na mashaya 350, suna tsayayya da slurry a 120 ° C, ko kiyaye ± 0.015 mm zagaye a cikin sa'o'i mai jujjuya famfo, bayan 0000 mai jujjuyawar famfo. Wannan matakin amintacce baya fitowa daga tushen asali. Ya fito ne daga abokan haɗin gwiwa waɗanda ke ɗaukar ƙarfe a matsayin injiniyanci-ba masana'anta ba.
Me yasa kwanciyar hankali ta fara farawa da wuri kafin a zubar da ƙura
Yawancin gazawa a cikin manyan matsuguni na bawul ko piston famfo cylinders suna komawa zuwa tushen dalili guda ɗaya: ƙananan ƙwayoyin cuta marasa daidaituwa a cikin batches masu zafi. Mun gan shi akai-akai-bangarorin sun wuce binciken CMM a cikin zafin jiki, sa'an nan kuma yawo yayin hidima saboda raguwar damuwa daga sanyi mara kyau a cikin simintin yashi ko rarraba hatsi a cikin ƙarancin tsabtataccen abinci. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., kowane karfe da bakin karfe simintin fara da bokan albarkatun kasa tabbaci-ba kawai niƙa certs, amma ainihin spectrographic bincike na kowane narke da yawa. Muna bincika daidaiton carbon, abun ciki na delta ferrite, da lahani na lalata tsakanin granular kafin zuba. Haka muke rike ± 0.02 mm haƙuri akan 300 mm OD Silinda bores-ba a matsayin sakamakon gwaji guda ɗaya ba, amma a cikin samar da raka'a 500 yana gudana.
Inda simintin ya ƙare kuma daidai yake farawa
Yin simintin saka hannun jari yana sadar da nau'ikan nau'ikan juzu'i. Yashi simintin hannu iyawa taro da thermal taro. Amma ba wanda ke isar da saman aiki na ƙarshe shi kaɗai. Abin da ya sa haɗin kai tsaye ba shine lokacin tallace-tallace a nan ba - hanya ce kawai don sarrafa murdiya. Cobalt-nickel alloy famfo da aka jefa a cikin yashi mai ƙulla silica na iya samun 0.12 mm na girma mai zafi yayin cirewar bayani. Idan machining ya faru makonni bayan haka, ba tare da sake damuwa ko damuwa ba kafin yankewa, wannan haɓaka yana fassara kai tsaye zuwa cin zarafin GD&T akan mahimman abubuwan datum. Kayan aikin mu yana ɗaukar jerin hanyoyin zafi, taimako na damuwa, da mashin ɗin CNC da yawa a cikin sa'o'i 72 - kuma yana auna kowane matakin matsakaici ta amfani da Zeiss CONTURA G2 CMMs waɗanda aka daidaita zuwa ISO 10360-2. Don kayan aikin AMS 5387 cobalt alloy 6, muna amfani da kayan aikin carbide na al'ada tare da ingantacciyar juzu'i-breaker geometry da isar da saƙo mai sanyaya-ba don “ci gaba ba ne,” amma saboda daidaitattun kayan aikin HSS suna karkatar da 0.04 mm lokacin da ke bayyana T800 alloy nozzles tare da kauri na bango 0.8 mm.
Ainihin farashin "marasa daidaitattun" ba a cikin ƙididdiga ba - yana cikin sake yin aiki
Abokan ciniki sukan tambayi: "Shin za ku iya yin wannan abin nadi mara kyau na tsakiya?" Abin da ba su ce ba - amma abin da muke bincike yayin nazarin injiniya - shine ko sashin yana buƙatar tsira da nauyin girgizar 22 kN·m yayin da yake juyawa a 45 rpm a cikin iska mai cike da gishiri. Wannan yana canza komai: darajar kayan abu (F22 vs. F22 CL3), zagayowar yanayin zafi (normalizing + tempering vs. quench & temper), ƙarewar ƙasa (Ra 0.8 µm ƙasa vs. Ra 0.4 µm honed), har ma da marufi (Tura-lalata-hana takarda, ba filastik kunsa). Muna ba da alama da wuri-ba don rikitar da tsari ba, amma don hana gazawar filin. Abokin ciniki ɗaya ya ceci $89,000 a cikin raguwar lokaci ta hanyar daidaita kusurwar chamfer akan kujerar bawul ɗin matsa lamba daga 15 ° zuwa 22 ° - canjin da ya rage rawar da ke haifar da kwarara da kuma tsawaita rayuwar sabis daga watanni 4 zuwa 11. Wannan fahimtar ta fito ne daga zaman fassarar GD&T, ba fakitin zane ba.
Ba a tabbatar da aminci ba - an tabbatar da shi, tsari ta tsari
Ka'idodin ISO 9001 yana ba ku damar shiga. Cikakken ganowa yana kiyaye ku cikin sarkar samarwa. Kowane masana'anta madaidaicin simintin ƙarfe yana da'awar sarrafa inganci. Kadan ne ke riƙe cikakkun takaddun matakin-wuri: lambar zafi, zub da kwanan wata, ID na tanderu, rahoton gwajin tensile, taswirar tauri a fadin kauri, da fayilolin CMM da aka adana na shekaru 10. Muna yi. Lokacin da OEM na Turai ya nemi cikakken bincike na microstructural akan jigilar kaya na bakin karfe winch shafts, mun samar da hotunan SEM da ke nuna girman rabon hatsi ba kawai "ya hadu da ASTM A351 CF8M." Wannan bayanin ba na zaɓi ba ne. Yana da yadda muke daidaitawa tare da API 6A, EN 1515-2, da buƙatun ASME B16.34 ba tare da yin gyare-gyare a cikin binciken ɓangare na uku na kowane PO ba. Gudun aikin mu ba ya yin sadaukarwa - yana shigar da shi: binciken abu mai shigowa, ingantacciyar magana ta farko, bincike-bincike a 20% da 70% kammalawa, da gwajin aiki na ƙarshe akan benci na gwajin injin ruwa har zuwa mashaya 700.
Idan aikin ku na gaba yana buƙatar ƙarfin masana'anta daidaitaccen simintin ƙarfe - ba kawai simintin simintin ba, amma sarrafa karafa, ingantacciyar kwanciyar hankali, da rashin daidaituwar yanayin - fara da daidaitawar fasaha, ba zanen kaya ba. Abokin da ya dace ba kawai ya hadu da ƙayyadaddun bayanai ba. Suna tsammanin inda waɗannan ƙayyadaddun ƙayyadaddun bayanai suka gaza a cikin aiki na ainihi na duniya.
