
Uyayibona leyo spec, 'izikulufo ezizishaya ngekhanda eziyindilinga ezineziphetho ezisikiwe', futhi abantu abaningi, ngisho nabathengi abathile abaneminyaka embalwa ngaphansi kwebhande labo, bavele bakhethe ibhokisi. Bacabanga ukuthi konke kumayelana nesitayela sekhanda kanye nephuzu. Kodwa lokho ‘kuqeda’—yilapho ingxoxo yangempela iqala khona, noma kufanele. Akulona nje ithiphu elibukhali; kumayelana nendlela intambo enqanyulwa ngayo, i-burr, i-torque yokuqala, futhi ngokungananazi, izinto ezincane eziyishumi nambili ezingaguqula isibophelelo esilula sibe yikhanda elibuhlungu emgqeni wokukhiqiza.
Ake siqonde kuyo. 'I-cut end' kulezi zikulufi akwenziwa ngomshini njengephoyinti lokubhoboza; inqanyulwa ngokoqobo ocingweni, bese kugoqwa imicu. Leso senzo sokusika sishiya i-geometry ethile. Isiphetho esihle esisikiwe kufanele sibe nomphetho oholayo ohlanzekile, cishe oyisicaba one-chamfer encane ukuze uqondise ukuqala kwentambo. Ngike ngabona amaqoqo lapho ukusika bekubuthuntu kakhulu—okufana neshizolo. Ungayishayela eshidini lensimbi eshaywe ngaphambili, futhi esikhundleni sokuluma okuhlanzekile, izolimaza unqenqema lwembobo noma idinge amandla amaningi okuhlala. Umsebenzisi uzosola umshayeli omncane, kodwa imbangela eyinhloko ukuthi ubuso obunqunyiwe obungachazwanga kahle.
Bese kuba khona i-burr. Awukwazi ukukuqeda ngokuphelele kule nqubo, kodwa ungakwazi ukuyilawula. I-burr ebukhali, ebheke ngaphandle ingumbulali. Isebenza njenge-reamer encane, ikhulise imbobo yokushayela ngaphambi kokuthi uchungechunge lungene. Umphumela? Ukungahlanganyeli kahle kwentambo, ukunciphisa ukumelana nokukhumula, kanye nelunga elizwakala lixega kusukela lapho usuhamba. Umphakeli wekhwalithi uzoba nenqubo yesibili—eyibiza ngokuthi ukuwa, ukudiliza, yini onayo—ukuze uyiwise phansi. Ngikhumbula iphrojekthi yendawo ebiyelwe kagesi yangaphandle lapho saba nezinkinga zokudlidliza. Ilandelele emuva kubhar yesikulufu esika indlela yaso enkulu kakhulu kusisekelo se-aluminium. Ishintshele emthonjeni olawula ukusika nokukhishwa kahle, futhi inkinga yanyamalala.
Ukuqala kochungechunge yidomino elandelayo. Izintambo ezimbili noma ezintathu zokuqala ngemuva kwalowo mnqamulajuqu zibalulekile. Kudingeka zibe ngokugcwele futhi zibukhali ukuze ziqale ukusika ku-substrate. Uma i-rolling die ingahambelani kahle nesiphetho esisikiwe, uthola intambo yokuqala eyingxenye noma ekhubazekile. Isikulufu sizontengantenga, 'sihambe' phezulu, futhi singanqamula intambo. Kuyiphoyinti lokulawula ikhwalithi okulula ukuligeja eshidini elicacisiwe kodwa elisobala ngokusobala endaweni yomhlangano. Uthuthukisa iso lakho, noma kunalokho, ukuzwa ngakho-ukuhambisa umunwe wakho ephuzwini kukutshela okuningi.
Yilapho okuyisisekelo okuvela esifundeni esifana ne-Yongnian e-Hebei, ihabhu elikhulu lokukhiqiza, liqala ukusebenza. Ukuvumelana kwenduku yocingo kubaluleke kakhulu ekusikeni. Insimbi ethambile, enekhabhoni ephansi ingase isike ngokuhlanzekile kodwa ngeke ibambe ifomu lokugingqa intambo ngaphansi kwengcindezi; izohlubula. Udinga insimbi yekhabhoni emaphakathi njengo-1010 noma 1018 ukuze uthole ibhalansi enhle yokubunjwa namandla. Kodwa-ke kufanele iphathwe ngokushisa. A isikulufu esizishaya ngekhanda eliyindilinga ngaphandle kokuqina kwecala elifanele kumane nje kuyisipho esihle.
Iphrofayili yokwelashwa kokushisa ithinta ngqo ukusebenza kwalowo mkhawulo wokusika. Kunzima kakhulu, futhi ithiphu iba brittle. Ngike ngabona izikulufu lapho intambo yokuqala ngemuva kwesiphetho esisikiwe yayinqamuka lapho ushayela, ishiya imfucumfucu emhlanganweni. Ithambile kakhulu, futhi isiphetho esisikiwe sona siyawohloka, sibe buthuntu lapho sithintana. Yisimo se-Goldilocks. Umkhiqizi othola lokhu okulungile, njenge-Handan Zitai Fastener Manufacturing Co., Ltd. kuleso sifunda, uyaqonda ukuthi akukhona nje ukusebenzisa izintambo esithandweni somlilo. Imayelana nomoya olawulwayo, ukucisha amazinga, kanye nokuthukuthela ukuze uthole lelo thiphu eliphelele, eliqinile kodwa elingenawo ama-brittle. Indawo yabo kuleso sisekelo esikhulu akuyona nje inzuzo yezokuthutha; kusho ukuthi zishumekwe ku-ecosystem lapho la mapharamitha ayingxenye yolimi lwansuku zonke.
I-Plating iphonsa enye into eguquguqukayo kumxube. I-Zinc Plating, evamile ukumelana nokugqwala, yengeza ukujiya. Uma i-geometry yokugcina eyisikiwe ingabalwa ngokufakwa ngaphambilini, lokho okwengezwe ama-microns ambalwa angazungeza imiphetho ebukhali yokusikwa nemicu yokuqala, okwandisa itorque yokuqala. Kwesinye isikhathi udinga ukucacisa i-chromate conversion coating (njengezinc ephuzi) ezacile, noma ishothi eliqhunyiswa ngaphambili ukuze uqinisekise ukuthi ukunamathela kunamathela ngaphandle kokugcwalisa amajiyometri abalulekile. Kuyimininingwane.
Endle, lezi zikulufi zivame ukungena eshidini lensimbi, izindlu zepulasitiki, noma ukuhlanganisa izinto ezingafani. Usayizi wembobo yokulinga uyivangeli, kodwa unqunywa ububanzi obusebenzayo be-cut end. Umthetho wesithupha ungu-90% wobubanzi obuncane besikulufu eshidini elincanyana. Kodwa nge Isikulufu esizithephayo esinomphetho osikiwe, uma ukusika kulukhuni noma kushile, ungase udinge ukuya ku-85% ukuze uthole ukuhlanganyela kwentambo okuhloniphekile, okugcizelela kakhulu okubalulekile. Alikho ishadi lomhlaba wonke lalokhu; ukuzama kanye nephutha nge-screw batch yakho ethile kanye nokokusebenza.
Ngikhumbula umhlangano womshini wokunquma ucezu lwezimoto usebenzisa iziqeshana zepulasitiki zibe iphaneli yomzimba wensimbi. Ukucaciswa kubize i-self-tapper yekhanda eliyindilinga. I-prototypes yokuqala yehlulekile - isiqeshana sepulasitiki sizoqhekeka. Sayihlinza. Isiphetho sokusikwa kwesikulufu besinolaka kakhulu, futhi imicu yokuqalisa ibigotshwe ngokucijile kupulasitiki. Kwakungekona ukuthepha; kwakushada futhi kuhlukana. Ukulungiswa bekungeyona idizayini yesikulufu esisha, kodwa ukuthola okuhlukile okuneziqu ezingaphezulu, isiqalo esihle kakhulu ngemva kokusikwa. Umphakeli, iZitai Fasteners, unaleyo nketho kukhathalogi yabo, kodwa bekufanele wazi ukuthi ubuze. Iwebhusayithi yabo, ethi https://www.zitaifasteners.com, ibala imikhiqizo ejwayelekile, kodwa inani langempela lisekhonweni lethimba labo lonjiniyela lokulungisa lezi zici—i-engeli esikiwe, ubude besiqalo sochungechunge—ngokusekelwe kuhlelo lokusebenza.
Ukukhetha ibhithi yomshayeli kungenye isiqephu esinganakiwe. Ibhithi ye-Phillips noma ye-Pozidriv ingaphuma uma i-torque yokuhlala iphakama ngokuzumayo, okungenzeka uma ukuphela kokusika kunzima ukuqala. Idrayivu ye-Torx cishe ihlala ingcono kakhulu kulawa, okunikeza ukuzibandakanya okuhle ukuze kudlule leso sigaba sokuqala sokusika. Kubonakala kuyinto encane, kodwa ukucacisa isistimu yokushayela efanele kuyingxenye yokucacisa isikulufu ngokwaso.
Ezokuthutha ezilula, njengaleso inkampani eseduze kukaloliwe i-Beijing-Guangzhou Railway kanye ne-expressways enayo, akuyona nje indawo yezinhlamvu zokuthengisa. Ihumusha ukuvumelana. Uma usebenzisa ulayini wokukhiqiza ongenawo amandla, awukwazi ukuba neziqukathi ezibambeke endleleni amasonto onke, okuphoqa ukuthi kushintshelwe kunqwaba yezikulufu 'zasendaweni' enezici ezihlukile zokusika ezihlukile. Ukubambezeleka kungase kusho inqwaba yensimbi ehlukile, ukusethwa komshini okuhlukile. Ukungaguquguquki kokunikezwa okuvela kumkhiqizi oshelelayo kunciphisa okuguquguqukayo. Awugcini nje ngokuthenga izinsimbi; uthenga ukubikezela.
Yingakho ukusebenzisana nabakhiqizi ezisekelweni ezihlanganisiwe ezifana ne-Yongnian kunengqondo. Lonke uchungechunge lokuhlinzeka—induku yocingo, ukucwenga, ukupakisha—lwenziwa endaweni. U-Handan Zitai, isibonelo, ekubeni kuleso sisekelo, angasabela ngokushesha. Udinga ukugijima okuncane okune-engeli eguquliwe yokusika ye-prototype? Kungenzeka kakhulu lapho izitolo zamathuluzi nabahlinzeki bezinto ezibonakalayo bephansi komgwaqo, hhayi ngaphesheya kolwandle. Ifinyeza iluphu yempendulo phakathi kokuhlonza inkinga yohlelo lokusebenza nokuhlola isixazululo.
Nokho, isisekelo esikhulu siphinde sisho uhla olukhulu lwekhwalithi. Igama lesifunda ekhadini lebhizinisi aliqinisekisi iziphetho ezinhle. Kwehlela ekulawuleni inqubo yomkhiqizi othize. Kufanele uhlole, noma okungenani, wenze ukuhlola okungenayo okuqinile kumaqoqo okuqala ambalwa. Hlola isiphetho esisikiwe ngaphansi kwesikhulisi, kala itorque yokuqala, yenza ukuhlolwa kwesifutho sikasawoti ekupulaleni. Themba, kodwa qinisekisa.
Ngakho-ke, uma u-oda ngokulandelayo ikhanda eliyindilinga izikulufi zokuzishaya ezineziphetho ezisikiwe, ungavele uthumele i-ISO noma ikhodi ye-DIN. Cabanga nge-substrate. Yisho isivinini sokuhlanganisa kanye nethuluzi lokushayela. Buza umphakeli mayelana nenqubo yabo yokusika nokuthi bayiphatha kanjani i-burr. Buza mayelana nekhevu yokwelashwa okujwayelekile kwaleyo nto ethile. Umkhiqizi onekhono uzoba nalezi zimpendulo. Umhwebi wempahla uzovele athumele isitifiketi esithi Meets DIN 7981.
Umgomo uwukwenza isibambiso sinyamalale—ukuba sibe ingxenye ethembekile, enganakiwe yomhlangano. Lokho kungabonakali kufinyelelwa ngokunaka imininingwane efana nekhwalithi yalowo mkhawulo wokusika. Umehluko phakathi kokukhiqiza okubushelelezi kanye nosuku oluchithwe kuxazululwa ukwehluleka kwamalunga okungaqondakali. Iphendula ingxenye elula ibe yingxenye ethembekile yenqubo. Futhi lokho, ekugcineni, yilokho okukhokhelayo.
p>
eceleni> umzimba>