Lokacin da injiniyoyi suka ƙididdige gears don famfunan ruwa na ruwa, faifan winch, ko masu aikin bawul mai ƙarfi, da wuya su fara da ƙarfe na foda. Yawancin suna isa da farko don ƙirƙira ƙarfe ko na'urar CNC-har zuwa kwanciyar hankali, juriya, da jimillar farashi kowane sashi ya fara canza lissafin. A nan ne sadaukarwa foda metallurgy gears factory ya daina zama madadin-kuma ya zama zaɓi na hankali kawai.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., mun ga wannan motsi da hannu a cikin nahiyoyi uku. A Arewacin Amurka famfo OEM ya rage mita maye gurbin kaya da 40% bayan canzawa daga sintered baƙin ƙarfe zuwa AMS 5387 cobalt alloy PM gears a cikin babban hawan piston famfo gidaje. Kamfanin injiniyan abin hawa na Turai ya yanke lokacin jagora da kwanaki 11-ba ta hanyar hanzarta yin injina ba, amma ta hanyar kawar da ayyukan sakandare guda biyar gaba ɗaya. Waɗannan ba ribar ka'ida ba ce. Sun fito ne daga sarrafa girman gradients a cikin ± 0.02 g/cm³, suna riƙe da juriya na diamita zuwa ± 0.015 mm akan 16-module spur gears, da kuma cimma ƙarancin ƙasa Ra ≤ 0.8 µm -as-sintered.
Madaidaicin gaskiya a cikin ƙarfe na foda ba game da danna ƙurar ƙarfe ba da kiran shi an yi. Yana farawa tare da takaddun shaida na kayan aiki: kowane nau'i na T800 cobalt foda na tushen foda yana ɗaukar cikakkiyar ganowa zuwa sigogi na atomization, abun ciki na oxygen (≤120 ppm), da rarraba girman barbashi (D50 = 18-22 µm). Mun ƙi foda a wajen wannan taga-ko da mai sayarwa yana ba da rangwamen kashi 15%. Me yasa? Saboda bambancin 0.3% mai yawa a tushen gear yana haifar da raguwar 22% a rayuwar gajiyar lanƙwasa ƙarƙashin hawan keke. Muna tabbatar da hakan yau da kullun ta amfani da ka'idar Archimedes da micro-CT scan akan samfuran samfuran-ba kawai a sassa na ƙarshe ba, amma a matakan kore, launin ruwan kasa, da sintered.
Gidan samar da mu yana haɗa abubuwa uku waɗanda ba za a iya sasantawa ba yawancin shagunan PM suna ɗaukar sabis daban:
- Sarrafa yanayi sintering tare da daidaitaccen sarrafa raɓa (-40 ° C zuwa -25 ° C) da nitrogen / hydrogen blends-mahimmanci don kiyaye watsawar carbide a cikin alluran cobalt ba tare da decarburization ba.
- In-mutu tsabar kudi An yi amfani da shi a lokacin fitarwa, ba azaman tsari ba, isar da ± 0.008 mm runout iko akan ɓangarorin kayan aiki ba tare da sakewa ba.
- Maganin zafi mai aiki hadedde kai tsaye bayan sintering: bayani annealing a 1180°C + sauri quenching ga AMS 5387, biye da tsufa a 845°C — cimma Rockwell C 42-46 yayin da adana gear hakori geometry.
Wasu na iya jayayya cewa kayan aikin CNC suna ba da kyakkyawan gamawa. Gaskiya - don ƙananan geometrics. Amma lokacin da abokin ciniki ya nemi hakoran haƙora 22, 3.5-module helical gear tare da kusurwar helix na 25°, spline na ciki, da latsa-fit bore-wanda aka yi daga madaidaicin mashaya T800-math ɗin yana canzawa. Abubuwan da ake samu sun ragu zuwa 38%. Lokacin kewayawa ya wuce mintuna 92. Kayan aiki sa spikes bayan sassa 17. Tsarin mu na PM yana ba da kayan aiki iri ɗaya a cikin zagaye guda ɗaya, tare da amfani da kayan 91%, lokacin takt na mintuna 14, da lalacewa na kayan aiki tsakanin batches. Kayan aikin sun haɗu da AGMA Q12 da ISO 1328-1 Class 7 - ba tare da niƙa ba.
Ba mu tura karfen foda inda ba nasa ba. Idan aikace-aikacenku yana buƙatar jujjuyawar gear fiye da 0.02 mm a zafin jiki na aiki, ko kuma idan nau'in nau'in nau'in nauyin ku ya haɗa da bugun bugun jini wanda ya wuce 3×, za mu gaya muku gaba: ƙirƙira + ƙare ƙasa har yanzu shine mafi kyawun hanyarku. Amma ga matsakaici-girma gudu (500-10,000 inji mai kwakwalwa / shekara), high-wear muhalli yanayi (≥200 MPa lamba danniya), ko tsarin inda nauyi, amo, ko taro hadaddun al'amari-PM isar da ROI mai aunawa. Ɗaya daga cikin masu kera filayen mai a kudu maso gabashin Asiya ya maye gurbin masu ɗaukar kaya masu waldadi guda 12 tare da tarukan PM guda ɗaya. Nauyin ya ragu da kashi 37%. Aikin majalisa ya fadi daga mintuna 42 zuwa 9. Kuma girman girgiza a 1800 rpm ya ragu da kashi 63% - wanda aka auna akan shafin tare da laser Doppler vibrometry.
Abin da ke raba mai iyawa foda metallurgy gears factory daga kantin buga jaridun kayayyaki ba ƙarfi ba ne - takamaiman binciken gazawar yanki ne. Lokacin da kayan aikin abokin ciniki ya gaza da wuri a cikin famfon na cikin teku, ba kawai mu maye gurbinsa ba. Mun ketare sashin da ya gaza, mun tsara taswirar gungu na porosity game da juzu'in damuwa, haɗin haɗin oxide mai alaƙa tare da raƙuman raƙuman yanayi, kuma mun sake fasalin yanayin huɗawar rami mai mutu. Sakamakon: gazawar filin sifili sama da watanni 18 da sa'o'in aiki 47,000.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki daga Qingdao-ba a matsayin tushen tushen gabaɗaya ba, amma a matsayin madaidaicin abokin tarayya don tsarin inda gears ba kawai sassa masu motsi bane. Abubuwan da ke ɗauke da matsi ne. Torque watsa anchors. Gaji-mahimman musaya. Muna sarrafa su ta wannan hanya-daga zaɓin foda ta hanyar ingantaccen aiki. Kayan aikinmu yana riƙe da takaddun shaida na ISO 9001: 2015 da AS9100D, amma abin da ya fi mahimmanci shi ne yadda muke amfani da su: kowane jigilar kaya tare da cikakkun rahotannin girma, bayanan ƙima, bayanan taurin haƙori da tushe, da micrographs na ƙarfe na sassa masu mahimmanci.
Makomar madaidaicin kera kayan aiki ba zabar tsakanin PM da machining ba. Yana haɗe su da hankali-ta amfani da PM don kusan-net geometry da amincin tsari, sannan yin amfani da ƙaramin, ƙayyadaddun CNC da aka yi niyya kawai inda saman aikin ke buƙata. Wannan tsarin haɗin gwiwar-simintin simintin gyare-gyare-inda ake maida hankali kan R&D a yanzu. Ba don maye gurbin matakai ba, amma don kawar da sulhu.
