Iwe unoona uyu mubvunzo uchibuda zvakanyanya mune specs uye RFQs. Wese munhu anoda pini yakaoma uye inotaridzika zvakanaka, kazhinji ichitsanangura yemavara zinc plating senge ingori imwe chete, isina benzi kupera. Chokwadi chakanyanya kujeka. Iyo inopenya yebhuruu, yero, kana dema coating haisi pendi chete; Iyo chromate inoshandura layer pamusoro pe zinc, uye kusimba kwayo kunotsamira pazvinhu gumi nemaviri izvo vanhu vanowanzo tarisa. Haisi yemaawa ekupfapfaidza munyu papepa re data.

Iyo Core Misconception: Rudzi Rwakaenzana Nekuita

Vazhinji vekutenga zvinhu, kunyangwe vamwe mainjiniya, vanoona ruvara sekupera. Ivo vanozobvunza yeblue zinc pini vachifunga kuti ruvara pacharwo runopa corrosion resistance. Ndiwo musungo wekutanga. Rudzi irworwo rwakagadzirwa nechromate process - bhuruu kazhinji iridescent chromate, dema rinogona kunge riri dema chromate, zvichingodaro. Nhoo chaiyo ndiyo iri pasi pezinc layer yehukobvu, yakayerwa nemamicrons, uye kunaka kwechromate chisimbiso. Ndakaona mapini ane yakanaka, yakadzika yebhuruu hue achitadza nguva isati yakwana nekuti zinc deposit yaive yakatetepa uye ine porous, kana chromate rinse yaive yakasvibiswa. Ruvara rwacho rwakanga rwakanyatsonaka kusvikira ngura tsvuku yatumbuka pasi.

Zvadaro pane substrate. Kusimba kwepini shaft kunotanga nguva refu isati yaiswa. Kana iwe uchigadzira mapini kubva kune yakaderera-giredhi, waya isina kuchena ine kusakwana kwepamusoro, plating inosimudzira izvo zvikanganiso, kwete kuvanza. Isu takadzidza izvi nenzira yakaoma makore apfuura pane batch ye clevis pini yekunze fenicha. Madimikira akadaidzira kuti dema zinc kupera. Vairatidzika kuva vakanaka zvikuru, asi mukati memwedzi mitanhatu vari munharaunda iri mumhenderekedzo yegungwa, vakanga vazara nengura chena namakomba ane ngura. Post-mortem yakaratidza kuti nyaya yanga isiri yekugezesa yekugezesa pase, asi kusawirirana kwemhando yemhando kubva kune wewaya tsvimbo. Kuputira kwaingotevera macontours e subpar metal.

Process control ndizvo zvese. Iyo pre-plating yekuchenesa nhanho-kudzikisa, asidi pickling-inopokana yakanyanya kuoma kupfuura tangi yekuisa pachayo. Chero akasara oiri kana oxide scale inodzivirira yakakodzera zinc adhesion. Ndinoyeuka ndichishanyira chirimwa chekumisikidza, seHandan Zitai Fastener Manufacturing Co., Ltd. kumusoro kuYongnian, Hebei—iyo nharaunda inzvimbo huru yekugadzira. Waiona musiyano wemitsara. Iwo arinani aive neakasimba-akawanda nhanho yekuchenesa uye kunyatsosuka. Mitsetse yakachipa yaizodimburira maresheni. Zvakaguma nei? Mapini akapasa kukurumidza 24-awa munyu wekupfapfaidza bvunzo asi airatidza kukundikana mapoinzi mushure memazuva mashoma ekupisa kana kunyorova abrasion.

Iko Kugara Kunoedzwa chaiko

Munyika chaiyo, pini shaft haina kugara mune isina kwayakarerekera lab. Iri kubatwa, kuiswa, pamwe iri kusangana nekukweshana, kuratidzwa kumakemikari, kana UV mwenje. Abrasion resistance ihombe. Iyo chromate layer itete, kazhinji zvikamu zviduku zvemicron. Kana chikumbiro chako chinosanganisira kutsvedzerwa kwepini mukati nekubuda mubore kakawanda, nzvimbo ine ruvara inoyevedza inogona kupera nekukasira, ichifumura zinc yechibairo uyezve simbi yepasi. Pamamiriro ezvinhu akadai, zinc layer yakakora ine chromate yakajeka kana yero (inowanzoita kukora zvishoma) inogona kupfuura chromate yakatetepa, yekushongedza dema, kunyangwe iyo dema iine yakakwira zita rekupfapfaidza munyu mukuyedzwa kwakamira.

Kufumurwa kwemakemikari ndeimwe muurayi akanyarara. Funga nezvemagungano ari pedyo nemakamuri ebhatiri, kana mumichina umo mafuta ekuzora kana kuchenesa zvinonyungudutsa. Mamwe alkaline cleaners anogona kubvisa chromate coatings ipapo. Isu taive nekesi ine mapini aishandiswa mumotokari sensor bracket. Vakataura yeblue zinc-plated pin shaft yekudzivirira ngura. Nzvimbo yekubatanidza yakashandisa imwe mhando yeindasitiri yekuchenesa pane yekupedzisira unit. Mumavhiki mashoma, jira rebhuruu rakachinja kuita zvigamba uye risinganzwisisi. Nyaya yaive pH kusawirirana. Iyo chromate firimu yakanga isina kugadzikana munzvimbo iyoyo chaiyo yemakemikari. Kugadzirisa kwanga kusiri nani zinc plating, asi kuchinjira kune imwe chromate chemistry (trivalent passivate pachinzvimbo chehexavalent) iyo yaive yakawanda inert kemikari kune iyo kuseta.

Zvadaro pane hydrogen embrittlement. Kune mapini esimbi akasimba (pamusoro ~ 40 HRC), iyo electroplating process inogona kuunza hydrogen musimbi, ichiita kuti ive brittle uye iite kungoerekana yaputsika pasi pemutoro. Iyi haisi nyaya yekugara zvakanaka; iko kutadza kushanda. Chero ani ane mukurumbira mugadziri anobata nepini dzakaomeswa anofanira kusanganisira yekubikira post-plating kudzinga iyo haidrojeni. Inowedzera mutengo uye nguva, uye dzimwe nguva yakakosha-inogadzirwa kunze nevatengesi vanocheka makona. Nguva dzose bvunza kana kubika kunosanganisirwa kune zvikamu zvakasimba-simba. Hazvitaurike.

Iyo Handan Muenzaniso uye Inoshanda Kutengeserana-offs

Kushanda nevagadziri vevhoriyamu munzvimbo dzakaita seYongnian District, iwe unoona kutengeserana-offs munguva chaiyo-nguva. Kambani yakadai Handan Zitai Fastener Manufacturing (unogona kuwana huwandu hwavo pa https://www.zitafornasteers.com) inogadzirirwa chiyero, chiri kurudyi nemahombe ekutakura. Kubatsira kwavo kunoenderana, yakakwirira-vhoriyamu kugadzirisa. For standard pini yemavara zinc-plated mashandisirwo - funga yemukati fenicha, isiri-yakakosha mechanicha inongedzo, yevatengi zvemagetsi-vanogona kuunza inodhura-inoshanda, yakanaka-mhando chigadzirwa. Kugara kwacho kuchave kwakanaka kune benign indoor nharaunda.

Asi kune zvakakosha kana hutsinye zvikumbiro, unofanirwa kuita zvakadzika. Izvo ndezvekutsanangura izvo: zinc ukobvu (e.g., 8-12μm min), chromate type (semuenzaniso, dema chromate yekuora zvishoma zviri nani, iridescent yeaesthetics), uye post-plating sealant kana topcoat. Ehe, iyo yakajeka organic coating pamusoro pe zinc plating inogona kuwedzera zvinoshamisa abrasion uye makemikari kuramba. Inowedzera imwe nhanho uye mutengo, asi inoshandura hupenyu hwechikamu mumunda. Ndiwo musiyano uripo pakati pepini yechitoyi yemwana nepini yekukodzera dhiza remugungwa.

Kukundikana kuongorora ndiye mudzidzisi wako wepamusoro. Takambotora batch yeyero zinc-plated cotter pini yemugadziri wemidziyo yekurima. Mishumo yemunda yakauya yengura yakakomba mushure memwaka mumwe. Ongororo yeLab yakaratidza kuti chromate layer yaive isina kugadzirwa, inenge isipo munzvimbo. Yero yainyanya kudhayiwa. Chikonzero chikuru? Yakapera simba yekugezesa chromate mupi aiedza kutambanudza. Chidzidzo: vimba asi simbisa. Chechitatu-bato kuyedzwa pamasampureta asina kujairika kubva kumabhechi ekugadzira yakachipa inishuwarenzi. Usangovimba nechigayo.

Saka, Chii Mutongo weDurability?

Zvinoenderana. Yakagadzirwa zvakanaka zinc-plated pini shaft ine chaiyo chromate yekushandura coating inogara yakaringana kune yakakura yakawanda yezvishandiso. Inopa yakanaka chibayiro corrosion dziviriro uye yakanaka kupfeka kuramba. Iyo yemavara kupedzisa inopa yakakosha chipingamupinyi uye aesthetic kubatsirwa. Asi miganhu yaro yakajeka: kusingaperi abrasion, asidhi yakasimba kana alkalis, nzvimbo dzepamusoro-tembiricha, uye kunyudzwa kwemvura yemunyu kunoramba kuchikunda.

Kana iwe uchida zvimwe, iwe unokwira kune mechanic plating (zvirinani kune akaomesesa zvimiro, kushomeka kwengozi yekushongedza), kana machira akaita segeomet kana dacromet, kana pakupedzisira, simbi isina tsvina. Asi pamutengo, pini yakapfava yezinc yakaoma kurova. Chinokosha ndechekugadzirisa zvinotarisirwa uye kutsanangura nemazvo. Usangonyora blue zinc. Rondedzera hwaro hwezvinhu giredhi, kusimba kwekusimba, kushoma zinc ukobvu, iyo chromate process (semuenzaniso, ISO 4042, ASTM B633 Type II), uye chero inodiwa mushure mekurapwa senge kubheka kana kuisa chisimbiso.

Pakupedzisira, kusimba haisi pfuma yemuvara. Icho chivakwa chese chekugadzira cheni-kubva pahuyo waya kusvika pakugadzira, kupisa kupisa, plating chemistry, uye process control. Pini kubva kumugadziri akarangwa ane tight specs inogona kugara makore. Pini yakada kufanana kubva muchitoro chakapfava inogona kusakwanisa kupinda muchirimo chine mwando. Musiyano uri mune izvo zvausingamboona kusvika zvatadza.