Lokacin da injiniyoyi suka ƙididdige bakin karfe don manyan bawuloli na hydraulic ko matsi mai jurewa, da wuya su daidaita don daidaitattun maki. Suna buƙatar daidaiton ƙananan ƙananan sassa, ƙayyadaddun sifofi na kusa-net, da kwanciyar hankali mai girma a ƙarƙashin hawan keke-sharadi inda ƙirƙira ko mashin ɗin gargajiya ya gaza. Shi ya sa ƙarin ƙungiyoyin ƙira ke juyawa zuwa foda karfe bakin karfe-ba a matsayin madadin alkuki ba, amma azaman tushen mafita don mahimman mahimman sassan manufa. Kuma ɗayan kayan aiki akai-akai yana isar da wannan alkawarin shine QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.
Foda Karfe Bakin Karfe: Inda Madaidaicin Haɗuwa da Sarrafa Ƙarfe
Mun ga abokan ciniki sun dawo sau uku tare da zanen gidaje iri ɗaya - na farko da aka yi daga hannun jari, sannan simintin saka hannun jari, a ƙarshe foda karfe (PM) bakin karfe. Kowane maimaitawa ya warware matsala ɗaya amma ya gabatar da wata: mashin ɗin hagu saura damuwa a cikin sassan sirara mai bango; simintin gyare-gyare ya gabatar da porosity a mahadar-gudanar hanya; PM ya isar da duka yawa> 99.5% da daidaiton hatsi a fadin kaurin bango 0.05 mm. Bambancin ba aikin kawai ba ne - maimaitawa ne a cikin batches 500 ba tare da cancanta ba.
PM bakin karfe ba a sinteta 316L kuma an kira yi. Yana farawa da gas-atomized pre-alloyed foda-yawanci 17-4PH, 15-5PH, ko al'ada Cr-Ni-Mo-Cu bambance-bambancen karatu-aka duba zuwa ±5 µm barbashi rarraba. A QINGDAO QIANGSENYUAN, compaction yana amfani da na'urori masu aiki sau biyu tare da saka idanu mai yawa na lokaci-lokaci, ba tsayayyen tonne ba. Sintering yana faruwa a cikin tanderu mara ruwa tare da raɓa mai sarrafawa (<-40°C) da rates ramp ≤5°C/min don hana hazo chromium carbide. Sakamakon? Wani abu mai ƙarfin yawan amfanin ƙasa 20-30% mafi girma fiye da daidaitattun maki da aka yi, babu komai na ciki wanda za'a iya ganowa ta hanyar gwajin ultrasonic a 10 MHz, da rashin ƙarfi na Ra ≤1.6 µm as-sintered-babu niƙa na biyu da ake buƙata don wuraren da ba a rufe ba.
Me yasa "Masana'antu" ke da mahimmanci fiye da "mai bayarwa"
Wasu dillalai suna fitar da sinadari. Wasu suna sarrafa injin na ƙarshe kawai. A gaskiya foda metallurgy bakin karfe factory ya mallaki cikakken sarkar-daga takardar foda zuwa gwajin aiki-kuma QINGDAO QIANGSENYUAN yayi daidai da haka. Kayan aikin su na Qingdao yana haɗa layin PM na ISO 9001-certified tare da sel CNC mai 5-axis, tanda masu zafi waɗanda aka daidaita zuwa AMS 2750E, da ɗakunan gwaje-gwajen awo na CMM waɗanda ke tafiyar da tsarin Zeiss CONTURA G2.
Wannan sarrafa tsaye yana kawar da maki biyu na gazawar gama gari: Na farko, gano kayan abu. Kowane tsari yana ɗauke da cikakkun MTRs-ba kawai bayanan tensile ba, amma ragowar oxygen/nitrogen, rahotannin bincike na sieve, da rakodin yanayi. Na biyu, amincin geometric. Lokacin da abokin ciniki ya nemi gidan silinda na piston famfo tare da tashar jiragen ruwa na radial 8, ± 0.01 mm juriya na matsayi, da taurare wuraren rufewa, ƙungiyar ta haɓaka sashin joometry na kore, taswirar ramuwa na sinter, da kuma bayan-sinter zafi-bi da gyara murdiya-duk kafin kayan aikin yanke.
Aikace-aikace na Haƙiƙa, Ba Lambobin Catalog kawai ba
Duba fiye da takaddun bayanai. A ainihin tura kayan aiki, abubuwan da ba su da bakin PM su suna magance takamaiman matsalolin filin:
- Oil & gas downhole bawuloli: AMS 5387 cobalt-chromium alloy nozzles suna jure wa mahalli na 120 ° C H₂S yayin da suke riƙe da ƙarfin zama bayan hawan hawan 50,000 - an inganta ta API RP 14D gwaje-gwajen juriya na hydrostatic.
- Injiniya abin hawa winch center shafts: T800 na tushen PM sassa gudu 3 × tsawon fiye da ƙirƙira kwatankwacin a cikin gishiri-fesa accelerated lalacewa gwaji, godiya ga uniform carbide watsawa kawar da fifiko lalacewa hanyoyin.
- Maɗaukakin famfo mai sauri: Net-siffar sintered 17-4PH gidaje rage taro lokaci da 65% a kan bolted Multi-yanki kayayyaki, ba tare da wani gasket leaks a 450 bar bambanci matsa lamba.
Waɗannan ba fa'idodin ka'ida ba ne. Sakamako ne da aka tabbatar ta hanyar binciken filin da abokin ciniki ke gudanar da shi-ba simulations kadai ba.
Abin Da Ake Bukatar Injiniya Su Sani Kafin Kayyade
Haƙiƙanin gaskiya guda uku suna siffanta ayyukan bakin bakin PM masu nasara:
- Zane don sintering farko: Ƙarƙashin ƙasa mai zurfi fiye da kauri na bango na 3 × yana buƙatar injin na biyu. Ƙananan radius shine 0.2 mm-ba 0.05 mm kamar EDM ba. Muna ba da shawarar tuntuɓar GD&T da wuri ta amfani da sabis ɗin tallafin aikin injiniya na kyauta.
- Matsakaicin girman tattalin arziƙi yana canzawa a raka'a 250: A ƙasa cewa, kayan aikin amortization yana sa PM ya fi CNC tsada. Sama da shi, jimlar farashin ƙasa ya ragu da kashi 18-22% saboda 70% ƙarancin sharar albarkatun ƙasa da 40% gajeriyar lokutan gubar.
- Ƙarshen saman ba na zaɓi ba - yana aiki: Abubuwan da aka yi amfani da su sun haɗu da ISO 13715 don wuraren da ba su da mahimmanci, amma fuskokin rufewa koyaushe suna jurewa ƙarar girgiza + electropolishing zuwa Ra ≤0.4 µm. Babu ware.
Ba sa tura PM inda ba nasa ba-kamar manyan ginshiƙan tsari ko ƙananan gidaje. Hankalinsu ya tsaya kunkuntar: manyan ayyuka madaidaicin sassa inda yawa, juriyar lalata, da kwanciyar hankali mai girma ke haɗuwa.
Neman Gaba: Daga Factory zuwa Foundry-Machining Hybrid Partner
Iyaka ta gaba ba kawai mafi kyawun bakin PM ba - masana'anta ce ta matasan. QINGDAO QIANGSENYUAN yanzu ya cancanci haɗaɗɗen matakai: sintering na kusa-net bawul jiki, sa'an nan yin gida Laser cladding na Stellite 6 a kan sealing saman, bi da gama-juya a daya CNC saitin. Wannan yana kawar da rashin daidaituwar zafin jiki tsakanin tushe da kayan rufi - sanannen sanadin zubewar da wuri a cikin aikace-aikacen sake zagayowar.
Ga injiniyoyin da ke tantance masu kaya, yi tambayoyi uku: Shin za su iya nuna muku rajistan ayyukan yanayi don odar ku ta ƙarshe? Shin suna yin gwaje-gwaje masu yawa a cikin tsari-ba kawai tabbatar da ɓangaren ƙarshe ba? Kuma za su haɗu tare da haɓaka tarin GD&T kafin fara latsawa? Idan amsar eh ga duka ukun, kuna aiki tare da a foda metallurgy bakin karfe factory-ba kawai wani mai siyarwa ba. Wannan bambance-bambancen yana bayyana aminci lokacin da aikin ba zai iya lalacewa ba.
