Uma uzwa 'unyawo lwepuleti lokushisela', abantu abaningi kwezokwakha bacabanga ngomthamo womthwalo, imininingwane yempahla, noma mhlawumbe ukumelana nokugqwala. Uhlangothi lwezemvelo? Imvamisa ukucabanga ngemuva, okuthile kwamaphepha okuhambisana. Kodwa njengoba ngithole futhi ngifake lezi zingxenye kuyo yonke into kusukela ezigabeni zezenzakalo zesikhashana kuya ezinkundleni zokuxhumana ezihlala njalo, ngibone umthelela uphuma ngezindlela ezingekho eshidini. Akukhona nje ngensimbi oyishiselayo; imayelana nayo yonke into eyithintayo, kusukela esigayweni kuya endaweni yokulahla udoti.

Umjikelezo Wokuphila Ofihliwe wePlate Foot

Ake siqale ekuqaleni. Leso siqephu sensimbi, ngokuvamile okuyipuleti eliyisisekelo elishiselwe noma unyawo oluyinkimbinkimbi olulungisekayo, aluveli nje. Ngonyawo olujwayelekile lwe-carbon steel, umthethosivivinywa wemvelo uqala ngezimayini nokucutshungulwa kwensimbi yensimbi. Ukuqina kwamandla kuyamangaza. Kepha nali iphuzu elisebenzayo esivame ukulikhumbula: i Unyawo lwe-Welding Plate idizayini ngokwayo ibeka imfucuza yezinto ezibonakalayo. Unyawo olwakhiwe kabi olunezinto eziningi ngokweqile ‘ukuze nje uphephe’ alubizi nje ngaphezulu; kusho ukumbiwa kwensimbi eyengeziwe, amalahle amaningi ashiswe esithandweni somlilo, kanye ne-CO2 eyengeziwe evela esigayweni. Ngikhumbula iphrojekthi lapho sashintsha khona ukusuka onyaweni oluyinqwaba, olusakazwa ngokwezifiso saya emklamo olula, owenziwe ngepuleti nepayipi sisuka kumnikezeli ofana naye. I-Handan Zitai Fetesser Comment Co, Ltd.. Ukonga isisindo ngeyunithi ngayinye bekukuncane, mhlawumbe u-15%, kodwa kumayunithi angama-5000, lokho bekungamathani ensimbi eluhlaza—kanye nekhabhoni efakwe esibukweni—sasingadingi ukuthumela emhlabeni wonke.

Bese kuba ne-coating. I-hot-dip galvanizing iyindinganiso yegolide yokuvikela ukugqwala, futhi ngesizathu esihle. Kodwa lelo ngqimba le-zinc livela enqubweni yalo edinga amandla amaningi futhi lidala izinselele zokwelashwa kwamanzi angcolile. Lapho sisebenza endaweni egudle ugu, sake sasebenzisa ipuleti lezinyawo, sicabanga ukuthi sihlakaniphile. Umnyakazo omubi. I-welding yashisa i-zinc ezungeze imithungo, yakha intuthu eyayidinga umoya owengeziwe (amandla engeziwe kubalandeli) kwase kudingeka sithinte isifutho esibandayo sokwenza uthayela—elinye ithini lamakhemikhali. Ingqikithi yesimo semvelo salokho ‘kulungisa’ kungenzeka kube nesisindo esingaphezu nje kokusebenzisa ipuleti elingaphathwanga nokulipenda kahle kamuva. Isifundo ngezinyathelo eziyingxenye.

Ukuthutha kungenye into ekhohlisayo. Ukuthola indawo enkulu yokukhiqiza efana ne-Yongnian District e-Handan, ezikhokhisa yona njengengxenye yesisekelo esikhulu kunazo zonke sase-China, kwenza umqondo wokusebenza. Ubulula bokuba seduze kwezixhumanisi zesitimela ezinkulu kanye nemigwaqo, njengendawo ye-Zitai, kunciphisa uphethiloli wempahla. Kodwa kwakha imodeli emaphakathi. Uma wakha eNyakatho Melika futhi izinyawo zakho zivela e-Hebei, ukukhishwa kwemikhumbi yasolwandle kuyinxenye enkulu yomthelela womjikelezo wokuphila womkhiqizo. Kwesinye isikhathi, unyawo olwakhiwe endaweni olusuka esitolo esincane, ngisho nenani eliphakeme kakhulu, lingaba nenani eliphansi lengqikithi yekhabhoni. Kuyizibalo esiqala ukuzenza ngokusemthethweni.

Izinto Zangempela Ezikusayithi Nokuphathwa Kwentuthu

Yilapho ithiyori ihlangana khona negrinder, ngokwezwi nezwi. I umthelela kwezemvelo ngesikhathi sokufakwa kuyashesha futhi kusendaweni. Intuthu yokushisela iyisigilamkhuba esisobala—inhlanganisela yama-oxide ensimbi, ukuvikela igesi ngemikhiqizo, futhi ngezinye izikhathi i-chromium eyihexavalent uma usebenza nge-stainless. Sonke sibonile ifu elimnyama elizungeze i-welder. Umthelela wezempilo kubasebenzi ubalulekile, kodwa leyo nto ayigcini nje ngokushabalala; lihlala endaweni bese ligeza emhlabathini noma emanzini ekugcineni. Ukusebenzisa izintambo zokushisela ezinentuthu ephansi kuyasiza, kodwa zibiza kakhulu, futhi emisebenzini enesabelomali esiqinile, ziyinto yokuqala yokuthola i-value-engineered.

Ukusebenza kahle komthombo wamandla kubaluleke kakhulu kunalokho obukucabanga. Isisetshenziswa esidala sokushisela esishayelwa udizili esicwebezelayo ngenkathi uhamba ngezinyawo siwukungasebenzi kahle kwesayithi. Kusayithi elikude elingenawo amandla egridi, akunakugwenywa. Kodwa ngiphushele amarigi kagesi lapho kunokwenzeka khona, ngaze ngabheka namayunithi ebhethri aphathwayo ama-tack welds amancane. Ukutholwa kuhamba kancane. Inkinga enkulu yi-arc-on time. A eklanywe kahle Unyawo lwe-Welding Plate nge-fit-up ecacile futhi ukujikijela kushiselwa ngokushesha. Eyakheke kabi idinga ukulungiswa, ukusikwa kabusha, nokushisela okwengeziwe. Leso sikhathi se-arc esengeziwe siwugesi owengeziwe, insimbi yokugcwalisa eyengeziwe, intuthu eyengeziwe. Idizayini yokwenziwayo ayilona nje igama lobunjiniyela; ingeyemvelo.

Khona-ke kukhona izinto ezengeziwe. Ukusika ipuleti ngosayizi kukhiqiza izinsalela. Ingabe usebenzisa i-oxy-fuel, eshisa igesi eyengeziwe futhi yakhe isikali se-iron oxide, noma i-plasma, ehlanzekile kodwa edinga umoya ohlanzekile, owomile? Izinyibilikisi ezihlanzwa ngaphambili zensimbi, izifutho zokunqanda isipatter—zonke izinto ezincane ezisebenzisekayo ezihlanganisa imifudlana yemfucuza eyingozi kuphrojekthi enkulu. Saqala ukuqoqa amathini e-aerosol angenalutho ngokuhlukana ngemva kokuba umphathi wesayithi eshaywe ngemali enkulu ngokumangalisayo yokulahla imfucuza. Bekuwuhlupho, kodwa kwasiphoqa ukuthi sibheke izindlela zokusetshenziswa kwenqwaba esikhundleni salokho.

Ubude Obude vs. Ukumiselela: I-Durability Equation

I-lever ebaluleke kakhulu yemvelo ngokuvamile impilo yomkhiqizo. A unyawo plate lokho kugqwala futhi kungaphumeleli eminyakeni emihlanu, okubangela ukuba isakhiwo sisekelwe futhi sishintshwe, kuyinhlekelele uma kuqhathaniswa nehlala amashumi amathathu. Yilapho ukukhetha kwezinto ezibonakalayo nokuvikelwa kubaluleke kakhulu. Kuyalinga ukusebenzisa i-plain carbon steel kanye nomsebenzi wokupenda oshibhile wezinhlelo zasendlini, ezomile. Kodwa kuthiwani uma ukusetshenziswa kwesakhiwo kushintsha? Ngibone izinyawo zokugcina impahla ziphenduke zaba ukusekelwa komugqa omncane wokucubungula onomswakama ngezikhathi ezithile. Izinyawo zazigqwalile emthungoni we-weld, iphuzu lokuhluleka okunzima ukulihlola. I-retrofit—i-jack up isakhiwo, yasika endala, yashisela entsha—yayiphazamisa ngendlela emangalisayo futhi isinda izinsiza.

Yilapho abakhiqizi abahloniphekile abaqonda isayensi yezinto ezibonakalayo bengeza khona ukubaluleka. Inkampani esebenza endaweni enkulu yezimboni efana ne-Handan's Yongnian District ayiyona nje indawo yokugcina impahla; babona izindlela zokuhluleka ezivela kumakhasimende kuzo zonke izimboni. Bangakwazi ukweluleka ngamamaki ezinto ezibonakalayo—njengokusuka ku-Q235 ukuya ensimbi ekwazi ukumelana nesimo sezulu ukuze kukhushulwe izindleko eziphansi—noma ngezindinganiso ezingcono zokugalela amalahle. Yabo Iwebhusayithi kungenzeka bangamemezeli mayelana nokusimama, kodwa amashidi edatha yomkhiqizo wabo agqinsile nezitifiketi zezinto ezibonakalayo axoxa indaba yangempela. I-zinc ewugqinsi noma isistimu yokuhlanganisa i-duplex ingase ikhulise umthelela wokuqala, kodwa ivimbela umthelela ophindaphindekayo kusukela ekushintshweni ngaphambi kwesikhathi.

Isici sokulungiseka kungomunye umdlalo wokuqina. Unyawo lwepuleti olulungisekayo olune-threaded rod noma indlela eshelelayo luvumela ukulingana ezisekelweni ezingalingani. Lokhu kungavimbela ukugxila kwengcindezi nokukhathala. Kodwa zonke izingxenye ezihambayo ziyiphuzu lokuhluleka okungenzeka. Ngibone izinyawo ezishibhile ezilungisekayo lapho indlela yokukhiya ibamba khona noma izintambo zigqwala ziqinile, zizenze zingalungiseki futhi zibe unyawo olugxilile olunephutha. Izindleko zemvelo lapha zisenkingeni yengxenye (ukwenza okuningi) ngaphandle kokuqaphela inzuzo yokuphila isikhathi eside. Ngezinye izikhathi, unyawo olulula, oluqinile, olugxilile esisekelweni esilungiselelwe kahle kuyisinqumo esiluhlaza.

Ukuphela Kokuphila: I-Scrap Akukona Ukuphela

Asivamile ukuklama ukubhidliza, kodwa kufanele. Ekupheleni-kwempilo, isakhiwo sidilizwa. Kwenzekani ezinyaweni zepuleti ezishiselwe? Uma zishiselwe ngqo kugongolo lokuqala, zivame ukushiswa. Lokho kungamandla amaningi kanye nentuthu. Uma efakwe ibhawudi—okuyinto eminye imiklamo eyivumelayo—angaqaqwa, ahlanzwe, futhi asetshenziswe kabusha noma agaywe kabusha ngendlela ephumelela kakhudlwana. Insimbi igaywa kabusha kakhulu, kodwa ukunamathela kwenza izinto zibe nzima. Insimbi ephehliwe ingaphinda igaywe kabusha, kodwa i-zinc iyavutha esithandweni futhi ivame ukulahleka, noma ingcolise amalayini esithandweni. Kusengcono kunendawo yokulahla imfucumfucu, kodwa kuyi-loop yokulahlekelwa.

Emsebenzini wokuyeka ukusebenza kwefektri endala, sazama ukuhlenga amapuleti. Lezo ezazingcole nje zazilungile. Lawo anopende owugqinsi, onomthofu (osukela enkathini endala) abe yinkinga yemfucuza eyingozi. Izindleko zokulahla lezo zinyawo ezimbalwa zaziphakeme kunenani lensimbi ehlanzekile. Manje, siqaphela amasistimu wokumboza asetshenziswa kumadokhumenti ethu njengoba akhelwe, hhayi nje ukulungisa, kodwa ukubhidlizwa kwesikhathi esizayo. Kuzwakala njengokubhalela othile inothi eminyakeni engama-50 kusukela manje, kodwa lolo uhlobo lokucabanga komjikelezo wempilo esiludingayo.

Ngakho-ke, ingabe lukhona unyawo lwepuleti lokushisela eliluhlaza? Akunjalo Empeleni. Kunezinhlobo eziningi zezinketho ezingezimbi kangako. Ukuhwebelana phakathi komthelela ohlanganisiwe wokuqala (impahla, okokumboza, ezokuthutha) kanye nokusebenza kwesikhathi eside (ukuqina, ukuguquguquka). Unyawo olunomthelela ophansi yilona okungadingeki ulusebenzise-lapho umklamo uqeda khona isidingo. Okulandelayo okuhle kakhulu unyawo olubalulwe ngokufanelekile, oluqinile, olukhiqizwe kahle olunciphisa udoti osendaweni futhi lugcine impilo yesakhiwo. Akusona isihloko esimnandi, kodwa konke ukuxhumana okushiselwe, ngisho nepuleti lesisekelo elithobekile, lithwala lesi sisindo esifihliwe. Ukuyiziba akukwenzi kube lula.

Ukushintsha Okusebenzayo kanye nemibuzo engaphenduleki

Ngakho yiziphi izinguquko emhlabathini? Okokuqala, imininingwane. Esikhundleni sokumane sibize ipuleti lesisekelo elishiselwe, i-ASTM A36, elinothayela, sesiqala ukungeza amanothi mayelana nokutholakala kwezinto (khetha insimbi yokuqukethwe egaywe kabusha), uhlobo lokumboza (chaza ubukhulu obuncane, gwema i-cadmium), futhi sikhetha ngisho nabahlinzeki abanezinhlelo zokuphatha imvelo. Iphoqa ingxoxo. Uma uthumela i-imeyili umphakeli like I-Handan Zitai Fastener ngale mibuzo, ufunda ngokushesha ukuthi ubani ophezu kochungechunge lwabo lokunikezela nokuthi ubani ongekho.

Okwesibili, ukwenza endaweni. Sihlanganisa ukushisela kwazo zonke izinyawo zamapuleti ukuze kwandiswe i-arc-on ngesikhathi samasistimu okukhipha intuthu. Sihlukanisa izinsalela zensimbi ngokuhlanzekile. Izinto ezincane. Isithiyo esikhulu ukubalwa kwezindleko. Izindleko zemvelo zingaphandle—azikho ku-P&L yethu, zisemhlabeni. Kuze kube yilapho amanani entengo yekhabhoni noma imithetho eqinile ifinyelela ukwakheka kanzima, isisusa sezimali senketho eluhlaza ngokuvamile sibuthakathaka noma sisekelwe emigomeni yebhizinisi ye-ESG, okungaba into yokuqala encishisiwe ekwehleni.

Okokugcina, kukhona okusha, kodwa kuhamba kancane. Ingabe zikhona ezinye izindlela zokulwa ne-spatter ezisekelwe ku-bio, ezingenabuthi ezisebenzayo futhi? Singakwazi ukuklama okwengeziwe ngezinyawo ezifakwa ibhawudi ukuze kube lula ukwakha? Ngibone izibonelo zezinyawo ezenziwe ngokuqina okuphezulu, insimbi ezacile, noma izinto eziyinhlanganisela zezinhlelo zokusebenza ezithile, kodwa ukutholwa emhlabeni wokwakha olandelanayo kuwuqhwa. Unyawo lwepuleti lokushisela luyimpahla. Umthelela wayo kwezemvelo uhlanganiswe nendwangu yemboni enzima. Ukuyiqaqa kusho ukubheka isinyathelo ngasinye, ukusuka emshinini wokugaya e-Hebei kuya egcekeni le-scrap e-Rotterdam, futhi ubuze ukuthi ikhona yini indlela engcono kancane. Isikhathi esiningi, kukhona. Akuvamile ukuba kube indlela eshibhe kakhulu noma elula.