Zinc zakuda zotsekera loko: luso lokhazikika? 

Mukuwona 'zinc wakuda atakutidwa' ndi 'chokhazikika' m'chiganizo chomwecho, ndipo lingaliro lanu loyamba lingakhale kukayikira. Zoyenera kutero. M'dziko lachangu, plating nthawi zambiri imakhala yokhudzana ndi kukana dzimbiri komanso kukongola, nthawi zambiri pamtengo wachilengedwe. Funso lenileni silimangodzipaka okha, koma moyo wonse-kuchokera kumadzi osambira a zinki mpaka kumapeto kwa moyo wa bolt mu dongosolo. Kuitana chomangira chilichonse chokhazikika kuti 'chokhazikika' kumafuna kuyang'ana kupitilira pa gloss yotsatsa.

Kukopa ndi Kuwona kwa Black Finish

Chophimba chakuda cha kutembenuka kwa chromate pa zinki ndichotchuka pazifukwa. Imapereka chotchinga choyenera cha dzimbiri - nthawi zambiri pafupifupi maola 96 mpaka dzimbiri loyera pamayeso opopera mchere, ngakhale kuti ndi chiwerengero cha labu, chowonadi ndi chowopsa - ndipo chimachepetsa kuwunikira. Kwa misonkhano yamagetsi ogula, zamkati zamagalimoto, kapena zomangira zina, ndi chisankho chogwira ntchito. Koma apa pali chogwira: njira yakuda. Malo ambiri osambira a chromate ali ndi hexavalent chromium, carcinogen yodziwika bwino komanso mbendera yofiyira kwambiri zachilengedwe. Ngati wothandizira akugwiritsabe ntchito njirayi, zonena zilizonse zokhazikika zimagwera pagawo loyamba. Kusintha kopita ku trivalent chromium kapena ngakhale osasindikiza ma chromate (monga a silane) ndipamene kukambirana kumayambira.

Ndikukumbukira pulojekiti ina m'mbuyomo pomwe tidatchula mabawuti akuda a zinki potchingira panja. Zolembazo zinali zosamveka, zimangoyitanitsa zinki wakuda pa ASTM B633. Maboti adafika, adawoneka bwino. Miyezi isanu ndi umodzi yotumizidwa kumunda, tinayamba kuwona dzimbiri lofiira msanga pamizu ya ulusi. Nkhani yake? Pulatayo idagwiritsa ntchito zokutira zotsika mtengo, zokhuthala zamtundu wa chromate, koma zinali zofewa komanso zosweka chifukwa cha kupsinjika, kuwulutsa zinki pansi. Kudzimbiri kunachuluka kuchokera pamenepo. Sikunali kulephera kwa plating pa sesi, koma a luso lokhazikika mu kusagwirizana kwa ntchito. Kukhalitsa ndiye maziko a kukhazikika; gawo lomwe limalephera msanga ndi chinthu chocheperako chosatha kuganiza.

Choncho, mapeto si mtundu chabe. Ndi dongosolo. Mtundu wachitsulo chapansi panthaka, makulidwe a nthaka wosanjikiza (tikulankhula 5-8μm pazamalonda ambiri), mtundu wa passivation, ndi chosindikizira chomaliza. Njira yolimba ya zinki yakuda yochokera kwa wopanga odziwika, monga Malingaliro a kampani Handan Zitai Fastener Manufacturing Co., Ltd. yomwe imagwira ntchito kuchokera ku China chachikulu cholumikizira ku Yongnian, nthawi zambiri imaphatikizapo mizere yoyendetsedwa, yamakono. Malo awo pafupi ndi njira zazikulu zoyendera monga Beijing-Guangzhou Railway sizinthu zokhazokha; imalankhula ndi maunyolo ophatikizika omwe amapangira zinthu zopangira ndi zomalizidwa bwino, zomwe zimatha kuchepetsa kuchuluka kwa kaboni wazinthu - kachigawo kakang'ono koma kowona kachidutswa kakang'ono.

Kodi Madzi Okhazikika Amakhala Kuti?

Tiyeni tipeze zothandiza. Kukhazikika pakupanga zomangira ngati zinki wakuda yokutidwa loko mabawuti zimatengera mfundo zingapo zogwirika. Choyamba, gwero mphamvu. Mizere yopangira zida zapamwamba tsopano imagwiritsa ntchito makina ochapira okhazikika, otsekeka omwe amadula kwambiri kugwiritsa ntchito madzi ndikubwezeretsanso zinc kuchokera kunyansi. Nditayendera chomera chomwe chidakhazikitsa izi, kusiyana kwa kumveka bwino kwamadzi otayira kunali kokulirapo poyerekeza ndi zida zakale, zotsegula. Chachiwiri, chinthu chokhala ndi moyo wautali. Bawuti yakuda ya zinki yokonzedwa bwino, yokhala ndi mafuta owonjezera owuma kapena seal, imatha kupitilira gawo lofunikira la zinki lopangidwa ndi buluu m'malo ocheperako. Izi zimachedwetsa kusintha kwazinthu, kuchepetsa kutaya kwa zinthu pakapita nthawi.

Ndiye pali chinthu chotchinga chokhachokha-chigamba cha nayiloni kapena ulusi wopotoka. Izi zimalepheretsa kumasuka ku kugwedezeka. Ganizirani za tanthauzo lokhazikika pamenepo: cholumikizira chomwe chimakhala cholimba chimasunga umphumphu, kuteteza kulephera koopsa komwe kumapangitsa kuti misonkhano yonse iwonongeke. Ndi gawo laling'ono lomwe limathandizira kudalirika kwakukulu kwadongosolo. Ndawonapo milandu m'mafelemu ang'onoang'ono agalimoto pomwe kusinthira ku chotsekera chotsekera bwino kumachotsa zonena za chitsimikizo zokhudzana ndi ma rattles ndi kumasula, zomwe zikutanthauza kuti magawo ochepa amapangidwanso ndikusinthidwa.

Koma si nkhani zonse zopambana. Tinayesa kukankhira njira ya zinki yakuda 'yobiriwira' - trivalent chromate, waya wachitsulo wobwezerezedwanso - kuti tigwirizane ndi katundu wogula. Kuchita kwake kunali kokwanira, koma mtengo wake unali woposa 15%. Makasitomala adakwiya. Kodi tikuphunzirapo chiyani? Zatsopano zokhazikika nthawi zambiri amapunthwa pazovuta zamalonda pokhapokha ngati malamulo kapena zofuna za ogula zimawalamula. Njira yaukadaulo ilipo, koma msika suli wokonzeka nthawi zonse kulipira ndalama zosungirako zachilengedwe.

Chain Supply Chain ndi Chowonadi Chakuthupi

Simungathe kuyesa kukhazikika kuchokera pa bawuti yomalizidwa yokha. Muyenera kuyang'ana kumtunda. Kodi ndodo yachitsulo imachokera kuti? Kodi ndi zochokera ku mphero zokhala ndi ng'anjo yamagetsi yamagetsi pogwiritsa ntchito zitsulo zazikulu? Kodi kusakanikirana kwa mphamvu kwa mpheroyo ndi malo opangira plating ndi chiyani? Makampani ophatikizidwa m'malo opangira zinthu ngati Chigawo cha Yongnian nthawi zambiri amakhala ndi mwayi wojambula waya, chithandizo cha kutentha, ndi plating, zomwe zimatha kuchepetsa mayendedwe apakatikati. Wopanga ngati Zitai Fasteners, yemwe ali m'chilengedwechi, atha kukhala ndi mawaya komweko, zomwe zimachepetsa mpweya wotuluka m'mayendedwe poyerekeza ndi magawo omwe agawika apakati pamayiko ena.

Zinc yokha ndi mfundo ina. Zinc plating ndi njira ya electrolytic. Mphamvu yamphamvu ndi yayikulu. Zomera zina zoganiza zamtsogolo zikuyika ndalama pakuwotcha kwa solar kapena kukonza matanki kuti achepetse kugwiritsa ntchito gasi. Sindinawonepo kukhazikitsidwa kofala, koma kuthekera kulipo. Yeniyeni luso lokhazikika Zitha kukhala zokutira zina palimodzi-monga makina a zinc-flake omwe amapereka kukana kwa dzimbiri kwapamwamba ndikugwiritsa ntchito zitsulo zolemera kwambiri. Koma pazinthu zambiri zomwe zinc wakuda zimatchulidwa, ndizokhudza kusintha kwazomwe zilipo kale.

Pa webusayiti yawo, https://www.zitaifasteners.com, mutha kuwona kuchuluka kwa zomangira zomwe amapereka. Sikuti amangogulitsa mankhwala; ndizokhudza kupereka chidziwitso cha uinjiniya - makulidwe a zokutira, zotsatira za mayeso opopera mchere, magwiridwe antchito a torque pama bawuti. Kuwonekera kumeneko ndikofunikira pakuwunika kulikonse kokhazikika. Wogula sangasankhe mwanzeru popanda deta imeneyo.

Case in Point: Malo Ozungulira Panja Asinthidwanso

Tiyeni tibwerere ku projekiti yotsekera yomwe yalephera. The post-mortem idatifikitsa kwa wogulitsa wina ndi zina zosinthidwa. Tinasamukira ku bawuti yakuda ya zinki yokhala ndi tinthu tating'onoting'ono tating'onoting'ono ta chromate komanso chovala chopyapyala chapamwamba. Ntchito yopopera mchere idalumpha kupyola maola 200 mpaka dzimbiri lofiira. Mtengo wake unali wokwera, koma mtengo wonse wa umwini, kuphatikizapo kupewedwa m'malo mwa munda ndi kuwonongeka kwa mbiri, zinali zotsika. Ndilo chiwerengero chokhazikika: ndalama zoyambira zoyamba za moyo wautali wautumiki komanso kuchepetsa zinyalala zolephereka.

Kodi linali yankho langwiro? Ayi. Chovala cha organic chikhoza kuvala panthawi yoyika ngati zida sizimasamala. Tinkafunika kuphunzitsa anthu ogwira ntchito pa msonkhano. Kukhazikika nthawi zambiri kumabweretsa zovuta zatsopano pashopu. Sichinthu chamatsenga chosinthira.

Apa ndipamene mbali ya loko imakhala yovuta kwambiri. Kwa zotsekera izi, kugwedezeka kunali chinthu chofunikira. Kugwiritsa ntchito a zinki wakuda wokutidwa loko bawuti ndi chigamba chomwe chinayikidwa kale chinapangitsa kuti mgwirizanowo ukhalebe, kuteteza kukhulupirika kwa chisindikizo ndi zamagetsi mkati. Kugwirizana pakati pa zokutira zolimba ndi njira yodalirika yotsekera ndizomwe zimapanga chinthu cholimba, chokhala ndi moyo wautali. Mmodzi popanda wina amasokoneza dongosolo lonse.

Ndiye, Kodi Ndilo Kukhazikika Kwatsopano?

Zitha kukhala, koma ndizovomerezeka. Chotsekera chakuda cha zinki chakuda chopangidwa ndi njira zowongolera, zocheperako, zopangidwira moyo wautali, ndikugwiritsidwa ntchito moyenera zimayimira sitepe lopita ku zida zokhazikika. Sichisinthiko, koma chisinthiko. Zatsopanozi nthawi zambiri zimakhala m'zinthu zopangira-kuwononga zinyalala, kubwezeretsa mphamvu, kuyang'anira mankhwala-zomwe wogwiritsa ntchito mapeto saziwona.

Makampani, kuphatikizapo maziko akuluakulu opangira malo monga Handan, akuyenda pang'onopang'ono kumbali iyi, motsogoleredwa ndi zofunikira zapadziko lonse lapansi ndi malamulo a chilengedwe. Ukadaulo ulipo. Vuto lalikulu ndilachuma komanso maphunziro: kukopa ogula kuti ayang'ane kupyola mtengo wamtengo wapatali ndikulimbikitsa kumvetsetsa mozama za zomwe zimalowa mu cholumikizira chodalirika komanso chopangidwa mwadala.

Pamapeto pake, musatenge chizindikirocho kuti chikhale chokhazikika. Gwirani m'mapepala a deta, funsani za mtundu wa chromate, njira yopangira madzi, moyo wautumiki woyembekezeredwa. Yankho ngati ndi luso lokhazikika zagona mu zenizeni zimenezo, osati mu mdima wakuda mapeto atakhala mu bokosi.