
Lokacin da injiniyoyi suka bayyana Nickel 400 alloy part factory goyon baya, ba wai kawai yin odar karfe ba ne — suna buƙatar kwanciyar hankali a ƙarƙashin hawan keken zafi, juriyar lalata a cikin ruwan hydraulic mai ɗauke da chloride, da rayuwar gajiya da ta yi daidai da ambulaf ɗin sabis na taron famfo na teku. Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfur saboda masu siyarwa sun kula da nickel 400 kamar daidaitaccen bakin karfe: hanyoyin kayan aiki iri ɗaya, dabarun sanyaya iri ɗaya, haƙurin dubawa iri ɗaya. Ba ya aiki. Nickel 400 na 63% abun ciki na nickel, ƙarancin ƙarancin zafin jiki, da ɗabi'a mai ƙarfi aiki suna buƙatar horo daban-wanda ya samo asali cikin wayar da kan ƙarfe, ba kawai ikon injina ba.
Yawancin gazawar sun samo asali ne zuwa kuskure uku da za a iya kaucewa. Na farko: samo kayan aiki. Nickel 400 ba ya canzawa a cikin zafi. ASTM B164 yana buƙatar tsananin sarrafa carbon<0.3%), sulfur (<0.024%), da baƙin ƙarfe (1.5-2.5%). Mun taɓa karɓar tsari tare da 0.42% carbon-a cikin iyakokin takardar shedar niƙa amma ya isa ya haifar da fashewar tsaka-tsakin lokacin damuwa-taimako. Na biyu: dabarun injina. Na al'ada high-gudun karfe kayan aikin tono a; carbide yana sawa da sauri; zafi yana ginawa inda bai kamata ba. Shagunan da suka yi nasara suna amfani da tsattsauran saiti, ƙananan RPM/madaidaicin ƙimar abinci, da sanyayawar cryogenic-ba don saurin aiki ba, amma don murkushe taurin aiki kafin ya kulle cikin gurɓacewar yanayi. Na uku: sarrafa kayan aikin bayan-machining. Nickel 400 yana kula da saura danniya. Sassan da aka yi amfani da su ba tare da hawan keke na rage damuwa ba sukan yi juzu'i yayin taro na ƙarshe ko gazawar gwajin hydrostatic a matsin aiki na 1.5 ×.
A gaskiya Nickel 400 alloy part factory dole ne a ba da fiye da haƙuri akan zane. Dole ne ya mallaki cikakken sarkar:
Mun tabbatar da wannan yayin odar kwanan nan don gidajen silinda na famfo piston da aka yi amfani da su a cikin tsarin injin ruwa na cikin teku. Abokin ciniki ya buƙaci Ra ≤ 0.4 µm akan filaye na ciki da sifili a cikin sashin bangon 2 mm kusa da tashar fitarwa. Daidaitaccen simintin yashi ba zai iya tabbatar da yawa ba. Simintin saka hannun jari ya isar da mutunci-amma sai bayan mun daidaita ramuwar kakin kakin zuma da +0.12% don fuskantar madaidaicin madaidaicin nickel 400. Wannan daidaitawar ya fito ne daga abubuwan ginawa 17 da suka gabata, ba takaddar bayanai ba.
Ƙungiyoyin sayayya ba sa jagoranci tare da "Shin kuna da ISO 9001?" Suna yin tambayoyi da yawa:
Amsar ba "Muna amfani da CMM ba." Yana da "Muna hawan sashin a kan masu gano kinematic, bincika jirgin datum tare da na'urar gano laser, sannan bincika duk fasalulluka a cikin saiti ɗaya - babu sakewa, babu kuskuren tarawa." Wannan matakin mallakar tsari ya raba masana'antu daga shagunan aiki.
Iyaka ta gaba ba kawai juriya ba ce kawai - daidaiton tsinkaya ne. Yanzu muna saka saka idanu akan zafin jiki na ainihin-lokaci a cikin igiyoyin CNC yayin wucewar nickel 400. Lokacin da yanayin zafi ya tashi sama da 38 ° C, tsarin yana rage abinci ta atomatik da 12% kuma yana haifar da tabbatar da kwararar sanyi. Ba don hana fashewar kayan aiki ba - amma don kiyaye aikin a cikin madaidaicin zafin jiki na 2 ° C a duk yanke. Me yasa? Domin nickel 400's elastic modulus yana canzawa tsakanin 20 ° C da 45 ° C. Wannan motsi yana canza jujjuyawa ƙarƙashin ƙarfi - kuma jujjuyawar tana canza zagaye na ƙarshe.
Wannan shine gaskiyar bayan kowane abin dogaro Nickel 400 alloy part factory: yana ɗaukar ƙarfe a matsayin mataki na farko, ba akwatin ƙayyadaddun bayanai na ƙarshe don dubawa ba. Ya san cewa karkacewar 0.005 mm ba game da ma'auni ba ne - game da ko ɓangaren ya tsira da sake zagayowar matsin lamba na uku a cikin tarin Tekun Arewa. Idan bangaren Nickel 400 na gaba yana buƙatar aiwatarwa - ba kawai wuce dubawa ba - masana'antar da kuka zaɓa dole ne ta yi magana da yaren atom, ba kawai kusurwoyi ba.
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