Asinqamule umsindo. Uma ucabanga ukuthi i-counterhead self-drilling screw iyikhanda lepani eliwubukhazikhazi elinephuzu lokubhoboza, usuvele usonyaweni olungemuva. Umdlalo wangempela usekudlalweni phakathi kwejiyomethri yekhanda, idizayini yomtshingo, nezinto ezihloselwe ukungena ngaphakathi kuzo. Ngibone amaphrojekthi amaningi kakhulu lapho i-fastener isolwa ngokwehluleka, lapho inkinga ibinokungafani okuyisisekelo kusukela ekuqaleni.

I-Anatomy ye-Counterhead efanele

Akukhona nje mayelana nephrofayili ephansi. Igama elithi 'i-counterhead' liphonswa nxazonke, kodwa imininingwane ebalulekile indawo engaphansi kwekhanda kanye nokuguquka kusuka ekhanda kuya ku-shank. Eyakheke kabi ngeke ihlale ngokugcwele, ishiye igebe lokugqwala, noma 'izoka kakhulu' futhi ikhubaze impahla oyibophayo. Ngikhumbula iqoqo elivela kumnikezeli—ngeke liwasho amagama—lapho i-engeli yekhanda isuswe ngamadigri ambalwa. Ephepheni, ihlangabezane ne-spec. Empeleni, ekusetshenzisweni kwensimbi-kuya-kukhuni, kwakha ukuphuka kwengcindezi okhunini ngaso sonke isikhathi. Ikhanda lalilokhu lishayela nje ngaphandle kokubamba kahle usinki.

Yilapho isisekelo sokukhiqiza sibalulekile. Ezindaweni ezifana ne-Yongnian District e-Handan, unamaqoqo ochwepheshe. Inkampani efana I-Handan Zitai Fetesser Comment Co, Ltd. ukuba sendaweni akukho ukuqondana. Ingqalasizinda namaketanga okuhlinzeka kuleso sifunda, eduze kwemizila emikhulu yezokuthutha efana ne-Beijing-Guangzhou Railway, kusho ukuthi bavame ukusebenza ngokugeleza kwempahla eluhlaza kanye nezihibe zempendulo yokukhiqiza izimboni ezincane, ezizimele ezingakwazi ukufinyelela kuzo. Kuhumusha ukuvumelana ezinqubweni zokugxiviza nokushisa ezichaza umgogodla wesikulufu.

Iphuzu lokubhoboza ngokwalo ngomunye umgodi onogwaja. Ukuze isikulufu sokuzibhoboza sisebenze, iphuzu kufanele lisike, likhiphe ama-chips, bese imicu kufanele yakheke ngaphandle kokugwaza. Ngihlole izikulufu lapho iphuzu belinolaka kakhulu kugeji yensimbi encane—beyingabhoboza kodwa ishiye imbobo emagebhugebhu izintambo ezingakwazi ukuzifaka ngokuhlanzekile, okuholela emicu ehlutshiwe ngaphansi kokudlidliza. I-counterhead design ihlanganisa lokhu; uma izihlalo zekhanda ngaphambi kokuba izintambo zihlanganyele ngokugcwele, uthola umqondo wamanga wokuqina. Ngemva kwesonto, kuyaxega.

Ukumataniswa Kwempahla kanye Neqiniso Lomsebenzi Wensimu

Awukwazi ukuba nesikulufu esisodwa sayo yonke into. Umbono oyiphutha omkhulu ukuthi isikulufu sokuzibhoboza se-counterhead esingu-10 siwukulungiswa kwendawo yonke. Kufreyimu yensimbi, ukusebenzisa isikulufu sensimbi esiqinile eshanelini elivuthwe ngaphambili kuyinto evamile. Kodwa sasinephrojekthi yokubuyisela kabusha ehilela amaphaneli ensimbi amaCorten amadala, anesimo sezulu. Isikulufu esishiwo, uhlobo olujwayelekile olufakwe nge-zinc, sabhola inhlawulo kodwa sabanjwa phakathi. Inkinga? Okuqukethwe kwethusi okuphezulu ku-Corten, kuhlanganiswe ne-zinc coating, kwakha ukubopha okukhulu kwe-galvanic. Isixazululo kwaba ukushintshela kusikulufu esinesistimu yokuhlanganisa ehlukile—imininingwane evame ukunganakwa ekucacisweni kokuqala.

Kulapho uhlangothi lwezokuthutha olusuka endaweni yomkhiqizi, njengendawo ye-Zitai eduze komgwaqo i-Beijing-Shenzhen Expressway kanye no-National Highway 107, lubonisa ukubaluleka kwawo. Uma udinga ukugijima okunamathelayo okuqondile, okungajwayelekile—ake sithi, ukuqedela okusekelwe ku-geopolymer komsebenzi wesitshalo samakhemikhali—ukuba sehabhu lokukhiqiza elicinene kusho ukuguquguquka kweqoqo elincane. Bangakwazi ukuthola i-coating, basebenzise umugqa, futhi bawufake elolini ngaphandle kwezikhathi zokuhola ezifanayo njengefektri phakathi nendawo. Iwebhusayithi yabo, https://www.zitaifasteners.com, ngokuvamile ibhala lawa makhono, kodwa kufanele umbe udlule ikhathalogi ukuze uqonde okushiwo: imayelana nokuzivumelanisa nezimo ezisabelayo, hhayi nje ukusungula ngobuningi.

Ikesi lokwehluleka okufanele lishiwo: kusetshenziswa isikulufu se-counterhead esidizayinelwe insimbi endaweni egqinsile yokhuni oluqinile. Umqondo bekuwukuzibhoboza, ngakho ayikho imbobo yokushayela. Ikhanda eliphansi lalifiseleka kubuhle. Izikulufu zagqashuka entanyeni ngesikhathi somnyakazo wokhuni. Siyini isifundo? Iphoyinti lokubhoboza lalingadingekile okhunini, futhi i-shank, elungiselelwe amandla ahlukene okugunda ensimbi, yayintekenteke kakhulu ukuze ingathwala ugodo. Sishintshele kwisitayela esifanayo se-counterhead kodwa ngebanga elihlukile kanye nefomu lentambo. Kwasebenza.

Isethi kanye ne-Squeak

Izilungiselelo ze-torque kubashayeli ziyashunyayelwa, kodwa akuvamile ukulandelwa kahle ngalezi zikulufi. I-counterhead ihloselwe ukudweba izinto ndawonye futhi ime. Kodwa uma indawo yokubhoboza ingasebenzi kahle noma umtshingo uvalekile (okuvamile nge-aluminium noma izinhlanganisela ezithile), umshayeli ulokhu ephotha, futhi itorque idlulisela ekhanda. Lokhu kungase kuphume futhi kukhumule ikhefu ledrayivu noma, okubi nakakhulu, ukuphotha isikulufu esihlezi, kucekele phansi imicu kokubalulekile komzali. Uthola umsindo ohlabayo—lokho ukwehluleka okwenzekayo. Manje ngigcizelela iphaneli yokuhlola ene-stack-up yento ncamashi ngaphambi kokuba kuqale ukufakwa kwenani elikhulu. Iyona kuphela indlela yokulinganisa umshayeli futhi uqinisekise ukukhetha kwesikulufu.

Ngezinye izikhathi, ukulungisa kuphambene. Ekufakweni okude kwe-fascia okunezikulufu ezifaniswa nemibala, besithola izihlalo ezingahambisani. Amakhanda ayeziqhenya noma ayecwila kakhulu. Ngemuva kokukhipha isinqumo ngezinkinga zomshayeli, sibheke izikulufu ngokwazo. Umbala we-anodized, ngenkathi ulungele ukumelana nokugqwala, wawudala ukungqubuzana okungahambisani ngaphansi kwekhanda. Isithambiso esincane esisebusweni bewasha—ukuthintwa kwengcina yezinyosi, kuzo zonke izinto—kwakwenza indawo yokuhlala ifane. Umniningwane omncane, ocishe ube umncane ongekho kunoma iyiphi imanuwali.

Ngalé Kweshidi Elicacisiwe: Ukuthola Nokungaguquguquki

Ikhathalogi evela kumkhiqizi omkhulu noma isayithi elifana ne-Zitai izokunikeza izakhiwo nobukhulu bomshini. Okuvame ukungakutsheli ngaso ukufana kwe-lot-to-lot uma kwenzeka kuqina ukujula noma ukunemba kokugingqika kwentambo. Kuzinhlelo zokusebenza ezibucayi, njengasekwakhiweni kwe-modular, lokhu kuyikho konke. Sengiqalile ukucela isitifiketi somthombo wekhoyili we-raw material kanye nokuhlolwa kwekhwalithi yawo engaphakathi kwenqubo ekubunjweni kwekhanda. Inkampani eshumekwe endaweni enkulu yokukhiqiza efana ne-Yongnian District ngokuvamile ihlelelwa lolu hlobo lokulandeleka ngoba isebenzela amakhasimende ayifunayo ukuze izimakethe zangaphandle.

Kumayelana nezingxenye ezisizayo. Isikulufu se-counterhead ngokuvamile siza newasha ye-EPDM. Ikhwalithi yaleyo washer ibaluleke njengesikulufu. Eshibhile izokwehlisa ukuchayeka kwe-UV, ilahlekelwe ukunwebeka, futhi ibeke engcupheni uphawu ngaphambi kokuba isibopheli sihluleke. Uma ngihlola umphakeli, manje ngicela ukubona imininingwane yomthombo wewasha futhi. Kuyindlela yezinhlelo.

Umcabango wokugcina: ukuziphendukela kwemvelo akumi. Sibona izicelo eziningi zezinhlanganisela—njengesihloko esiphikisayo esinephoyinti lokubhoboza elixubile elikwazi ukuphatha amashidi ensimbi asekelwa ibhodi lokufaka elishisayo. Iphusha umklamo. Amafekthri angakwazi ukuphindaphinda ngokushesha, imvamisa lawo anamaqoqo aqinile atholakala endaweni kanye nobunjiniyela, yiwo axazulula lezi zinkinga. Kuncane mayelana nokusungula isikulufu esisha nokuningi mayelana nokulungisa ama-engeli, inqubo yokushisa, nama-coatings ngezindlela ezinembile. Lobo ubungcweti bangempela, futhi yikho okuhlukanisa isibophelelo sempahla nesixazululo.