Uzithenga phi iibholithi eziMnyama ezinezinki ezine-hexagonal? 

Ujonge iibholiti ezimnyama ze-zinc-plated hex, hayi nje nayiphi na ibholithi emnyama. Eso sigqibo-simnyama, simatte, simelana nokudleka- sindixelela ukuba usematshinini, kwizakhiwo zangaphandle, okanye intsimbi yokwakha apho inkangeleko nokhuseleko lubalulekile. Umgibe oqhelekileyo? Abantu babhidanisa i-oxide emnyama kunye ne-zinc plating emnyama. Ioksidi emnyama ngokusisiseko ngumaleko womhlwa olawulwayo, ukuxhathisa umhlwa okuncinci. I-zinc plating emnyama yingubo ye-zinc ene-black chromate conversion layer phezulu. Ngokwenene ikhusela i-substrate, inika iiyure zokutshiza ngetyuwa ezifanelekileyo. Ukuba ukhangela ezi zinto, kufuneka uyicacise loo nto, okanye uya kufumana izinto ezingalunganga zifika kwidokhi yakho.

Ukuqala ngokuPhambiliyo: Ababoneleli kunye naBasasazi boShishino

Uninzi lwabantu lutsibela kuMcMaster-Carr, Grainger, okanye Fastenal. Kwiprototyping okanye iibhetshi ezincinci, kulungile. Uya kuhlawula iprimiyamu, kodwa ufumana ngomso. Ukubanjwa? Isitokhwe sabo kwimiphetho ethile efana ne-zinc emnyama inokulinganiselwa kubo bonke ubungakanani kunye namabakala. Ndiyidinga i-M12 x 80mm, iBanga le-8.8, i-zinc-plated emnyama, kwaye uMcMaster wayenayo "ngomyalelo okhethekileyo" kunye nexesha leeveki ezi-3. Ayilunganga xa umgca wemveliso ulindile. Aba basasazi bakhangela kubavelisi ngokwabo, ngoko ke wongeza umaleko. Kwimiyinge emikhulu - yithi, amaqhekeza angama-10,000 nangaphezulu-ukuya ngokuthe ngqo kuqala ukwenza ixabiso elibi kakhulu.

Iingcali zetsimbi ezikwi-Intanethi kunye ne-fastener yenye inqanaba. Iindawo ezifana neBolt Depot, Albany County Fasteners. Iindidi ezingcono ngamanye amaxesha, kwaye bahlala bedwelisa izinto zobugcisa ezifana nohlobo lokutyabeka kunye nobukhulu. Ndibe namava amahle, kodwa kunye nokungahambelani. Ibhetshi enye yayinechromate emnyama engalinganiyo, iinxalenye zazibonakala zimnyama. Impendulo yabo yayilungile, yathatha indawo yabo, kodwa yabangela ukulibaziseka kweprojekthi yeeveki ezimbini. Isifundo: Ndikunye nabasasazi “abachwepheshile”, cela iicerti zokwaleka okanye ibhetshi yesampulu kuqala. Musa ukucinga.

Umbuzo wokwenyani uba ngumthamo kunye nokugxeka. Kwizicelo ezingabalulekanga, umthengisi uyasebenza. Kwiprojekthi ezinzileyo, okanye ukuba iibholiti ziyinxalenye yemveliso oyenzayo, ikhonkco lokubonelela kufuneka libe nzulu kwaye lithembeke ngakumbi. Kulapho uphendlo lwakho lutshintsha lusuka “kwindawo yokuthenga” luye “kubani owenza ezi zinto, kwaye ngubani ozenza ziphile?”

Ukuya ngqo: Indlela yomvelisi

Apha kulapho wahlula khona umthengi oqhelekileyo kumthengisi oyingcali. Ukufumana owona mzi-mveliso. I-China, ngokungamangalisiyo, yeyona ndawo iphambili kwimveliso ye-fasteners. Iphondo laseHebei, ngokukodwa iNqila yaseYongnian, liqela elikhulu. Amawaka emizi-mveliso. Iqhinga kukuchonga ukuba zeziphi ezinobuchule obufanelekileyo iibholiti ezimnyama ze-zinc-plated hexagonal, kungekhona nje nayiphi na i-zinc plating.

Uninzi lweefektri zibonelela nge "zinc emnyama" kodwa inkqubo yazo isisiseko. Umaleko we-zinc unokuba mncinci, i-chromate passivation emnyama inokuba luhlobo olutshiphu, lwediphu enye oluthi luphele lube ngwevu. Kufuneka ubuze malunga nenkqubo yabo: Ngaba i-electroplating? Yintoni i-zinc engumndilili wokutyabeka ubukhulu (umzekelo, i-8-12 microns)? Ngowuphi umgangatho wovavanyo lwesitshizi setyuwa abanokudibana nawo (umzekelo, iiyure ezingama-96 ukuya kumhlwa omhlophe nge-ASTM B117)? Ukuba abakwazi ukuphendula ezi ngokukhawuleza, qhubela phambili.

Ndikhe ndandwendwela amaqela afana neYongnian. Imbonakalo-mhlaba yimizi-mveliso, emikhulu nemincinci. Olunye unxibelelwano oluthembekileyo endikhe ndasebenza nalo I-Sunnian Zitai Festener Fishaner Comment Com.. Bame kanye kwiSithili saseYongnian, eHandan, ephantsi kolu shishino. Indawo yabo kufuphi nonxibelelwano olukhulu lwezothutho olufana neBeijing-Guangzhou Railway kunye ne-expressways yinzuzo esebenzayo ye-logistics-containers ifika kwi-port (Tianjin / Xingang) kakuhle. Ndibafumene kwiminyaka embalwa edlulileyo xa bendikhangela umboneleli weprojekthi yenkqubo yokubiya efuna ukugqibezela okumnyama okungaguqukiyo. Eyona nto yayibalasele yayikukugxila kwabo ekugqumeni. Zinemigca yokwahlulahlula yemibala eyahlukeneyo, enciphisa ukungcoliseka komnqamlezo. Kwi-zinc emnyama, basebenzisa inkqubo yokuvala i-loop yechromate, eyona nto ingcono ukuhambelana kunye nokulawulwa kwendalo. Ungajonga uluhlu lwabo apha https //wwww.ziitasteners.com. Ayizizo zonke isayizi ezihlala zisesitokhweni seebholithi ezigqityiweyo, kodwa ujiko lwazo ukusuka kwimathiriyeli ekrwada ukuya kwimveliso ecwecwe lalinokhuphiswano.

Ukuchaza Kanye Kanye Oko Ukufunayo

"Black zinc-plated hex bolt" yindawo yokuqala. Usathana ukwiinkcukacha ekufuneka unxibelelane ngazo. IBakala / izinto eziphathekayo: Ngaba emva kwe-carbon steel Grade 4.8, 8.8, okanye 10.9? Okanye mhlawumbi insimbi engenasici (njenge-304 okanye i-316) enengubo emnyama? Leyo yinkqubo eyahluke ngokupheleleyo, edla ngokubandakanya i-physical vapor deposition (PVD) enexabiso eliphezulu. Uninzi lwezinki ezimnyama ezisemgangathweni zikwi-carbon steel.

Imilinganiselo: Hayi ubude kunye nobubanzi kuphela, kodwa i-pitch pitch (ilungile okanye i-coarse), kwaye ingaba iphelele okanye iphelele. Imiba yerediyasi ephantsi kwezicelo ezinoxinzelelo oluphezulu. Iplating ngokwayo: Cacisa ukuba uyayifuna na ukuba ithobele i-RoHS (akukho chromium enehexavalent kumaleko wokudlula). Uninzi lwababoneleli abalungileyo ngoku basebenzisa i-trivalent chromate, ekhuseleke ngokusingqongileyo kwaye inika umbala omnyama ofanayo. Ndakhe ndalibala ukucacisa i-chromate e-trivalent yemveliso ebophelelwe yi-EU kwaye ndinentloko yokuthobela kwizithethe.

Ukupakishwa nokumakishwa. Ngaba ufuna iipoly bags? Iibhokisi zeebhokisi? Ukumakishwa kweLaser entloko? Ukulandeleka, oku kunokubaluleka. Umenzi olungileyo onjengoZitai unokusingatha le misebenzi yesibini endlwini, eyenza izinto zibe lula. Ngalo lonke ixesha, soloko ufumana iisampulu ezivunyiweyo ngaphambi kokugunyazisa imveliso epheleleyo. Hlawula ukuthunyelwa kweDHL. Kuyafaneleka ukubamba inxalenye yomzimba, khangela ukulungelelaniswa kunye ne-nut / washer yakho, kwaye wenze uvavanyo olukhawulezayo lokubambelela (uvavanyo lwe-tape ye-cross-hatch) kwi-coating.

Imigibe esemgangathweni kunye nendlela yokuyiphepha

Kwanangomthombo othembekileyo, izinto zinokuhamba kakubi. I-Hydrogen embrittlement ngumngcipheko weklasi kunye ne-electroplating high-power bolts (iBanga le-10.9 nangaphezulu). Inkqubo yokucwenga inokwazisa i-hydrogen kwintsimbi, iyenze ibe brittle kwaye ibangele ukulibaziseka kokusilela. Nawuphi na umenzi onobuchule kufuneka abhaka izibophelelo zabo eziphezulu zokuqina emva kokutyalwa (ngokuqhelekileyo kwi-190-220 ° C iiyure ezininzi) ukukhupha i-hydrogen. Buza irekhodi yabo yenkqubo yokubhaka. Oku ndakufunda kabuhlungu kwisiqwenga sesixhobo esinzima; saba ne-bolt snap ngexesha lofakelo. Umthengisi wayetsibile inyathelo lokubhaka ukonga ixesha kunye neendleko.

Ukwahluka kobukhulu bokwaleka. Kwi-a ibhonti enehexagonal, i-coating ingaba yincinci kwimida kunye neekona zentloko ye-hex. I-plater efanelekileyo iya kusebenzisa i-racking efanelekileyo kunye noxinano lwangoku ukunciphisa oku. Cela ingxelo yovavanyo ebonisa imilinganiselo ukusuka entloko, i-shank, kunye ne-thread crest. Ukufana ngundoqo kukhuseleko lokutya kunye nobuhle.

Ukuhambelana kombala kwiibhetshi. Oku kukhulu kwizicelo ezibonakalayo. Umbala omnyama wechromate unokutshintsha kancinci ngokusekelwe kwikhemistri yokuhlamba kunye nexesha lokuntywiliselwa. Ukuba wenza iprojekthi yeminyaka emininzi, cela ukuba umthengisi agcine ibhetshi yekhemistri yechromate okanye ubuncinci ugcine iiparitha zenkqubo eneenkcukacha. Banike isampulu eyinkosi evunyiweyo abanokuthi bathelekise ngayo kuyo yonke imveliso eqhutywayo.

IQhinga lokuFumana iNgxowa-mali: Iindleko zokuLungelelanisa, ixesha lokuKhokela, kunye noMngcipheko

Ngeemfuno zokuphela konyaka, namathela kumsasazi wasekhaya okanye wesizwe. Umahluko weendleko awufanelekanga ubunzima bokungenisa. Ukusetyenziswa konyaka okanye iprojekthi enkulu, phuhlisa ubudlelwane obuthe ngqo kunye nabavelisi be-1-2. Sebenzisa i-arhente yokukhangela ukuba awukhululekanga ngonxibelelwano oluthe ngqo kunye nokujonga umgangatho, kodwa i-arhente elungileyo yongeza i-5-10% yeendleko. Kwinto esemgangathweni njenge iibholiti ezimnyama ze-zinc, ungalawula ngokuthe ngqo xa sele uwuvavanye umzi-mveliso.

Oda isixa solingo kuqala. Nokuba iisampulu bezigqibelele, ibhetshi yokuqala yemveliso inokwahluka. Oda iinqununu ze-1000, zivavanye ngokucokisekileyo-i-dimensional checks, ubudlelwane be-torque-tension, iimvavanyo zokugqoka. Emva koko nyusa.

Amalungiselelo abalulekile. FOB ukusuka kumzi-mveliso wabo? EXW? Ngubani ophethe uthutho lwangaphakathi eTshayina? Inkampani efana ne-Handan Zitai, ekwisiseko esiphambili semveliso kunye nonxibelelwano oluhle lwezothutho, ihlala inento yesiqhelo. Ngokuqhelekileyo banokulungiselela ukuhanjiswa kwi-port. Umsebenzi wakho kukulungelelanisa umthuthi othembekileyo wokuthutha ulwandle / umlenze womoya kunye nokukhutshwa kwamasiko ekupheleni kwakho.

Ngoko ke, unokuzithenga phi? Ayiyompendulo enye. I-flowchart: Uthini umthamo wakho? Lithini ixesha lakho? Sibaluleke kangakanani isicelo? Kwabaninzi, uhambo luphela kumthengisi othembekileyo wemizi-mveliso. Kwabo banzulu kwimveliso okanye ulwakhiwo olukhulu, impendulo ikhokelela kwiindawo ezifana neYongnian, kunye nabavelisi abahlala kwaye baphefumle i-fasteners, apho ulawulo lokwenyani malunga neenkcukacha kunye nomgangatho ulele. Kulapho ufumana ukuthembeka, iindleko ezisebenzayo iibholiti ezimnyama ze-zinc-plated hexagonal, kungekhona nje imveliso yokuthenga, kodwa icandelo ongalichaza ngokuzithemba.