Hot-dip galvanized bolts: inogoneka kuindasitiri? 

Iwe unonzwa ‘hot-dip galvanized’ uye iwe unofunga ‘kusingaparadziki, kunogadzika, kuenda-kunopedza.’ Asi iyo ndiyo nyaya yose pasi here? Sezvo ndawana uye nekutsanangura izvi kwemakore, ndaona mukaha pakati pechivimbiso chekatalogi uye chokwadi pane inotenderera inotakura kana muyadhi yemahombekombe. Mubvunzo wekusimudzira hausi we zinc chete; ndezvehupenyu hwese, kubva patangi yekunhonga kusvika kune inozotsiva. Ngatichekei kuburikidza nekushambadzira gloss.

Iyo Zinc Shield: Kupfuura Kungopfeka

Chekutanga, ngatijekese: hot-dip galvanizing (HDG) inopa yakanakisa corrosion dziviriro kuburikidza ne metallurgical bond uye chibayiro anode chiito. Ndiro bhuku rezvidzidzo. Asi iyo chaiyo kusimba kunoenderana zvakanyanya pahwaro hwesimbi mhando uye maitiro ekudzora. Ndakaona mabhaudhi kubva kubhechi ine mukurumbira achitadza nguva isati yakwana nekuti simbi yepasi yaive netsvina yaikonzera kusaenzana kwekunamatira. Zinc yakaita basa rayo, asi yairwa hondo kubva pahwaro husina kusimba. Haisi yekungonyika bhaudhi; zviri pamusoro pezvauri kunyudza.

Zvadaro pane nzira yacho pachayo. Iyo chaiyo HDG maitiro anosanganisira kwakasimba kugadzirira kwepamusoro-kudzikisa, kunhonga, kuyerera. Kana iyo pickling asidhi isingatariswe nemazvo, iwe unowana hydrogen embrittlement njodzi, kunyanya pamabhaudhi akasimba. Ndinoyeuka purojekiti apo takava nenhevedzano yemabhaudhi egiredhi 8.8 akaputika pasi pekunetsekana. Chikonzero chikuru? Kusakwana kubheka mushure mekugadzira galvanizing kudzinga hydrogen. Chirevo chekusimudzira chinodonha kana chikamu chikatadza kurongeka isati yawana mukana.

Uye kupedzisa hakusi yunifomu semucheka wekushongedza. Iwe unowana madrip, anomhanya, uye ane hunhu spangle pateni. Kune mamwe maitiro ekugadzirisa, izvo zvakanaka. Asi kumagungano chaiwo uko kushivirira kwakasimba, ukobvu hwekuwedzera pashinda hunogona kutyisa. Iwe kazhinji unofanirwa kudzokorora nati kana kushandisa oversize tapping, izvo zvinowedzera mutengo uye kuoma. Iyo 'inogoneka' sarudzo haina kugadzikana kana ichigadzira marara uye kugadzirisa zvakare kuzasi.

Kuyera Environmental Ledger

Kana vanhu vachitaura kusimudzira, vanowanzo funga hupenyu hurefu. Asi mutengo wezvakatipoteredza wekugadzira chikamu chikuru cheiyo equation. Maitiro eHDG anoshandisa simba zvakanyanya-kudziya kettle hombe dzezinc kusvika ku450°C. Iyo zinc pachayo ipfuma. Kunyange ichidzokororwa, iyo yekutanga kugadzirwa ine tsoka yayo. Iyo pickling nhanho inoshandisa hydrochloric kana sulfuric acid, kugadzira tsvina inoda kungwarira kusarerekera uye kuraswa. Ongororo yakadzikama zvechokwadi inofanirwa kuzvidavirira pane izvi.

Enzanisa nemuchina weplating kana nyowani, yakatetepa-firimu inorganic coating. Vanogona kunge vaine mutoro wakaderera wekutanga kwezvakatipoteredza, asi kana vachida kutsiva kaviri kakawanda, iwe uri kutarisa kune mamwe magadzirirwo ekugadzira, mamwe ekufambisa, akawanda ekuisa basa. Kune inorema maindasitiri kana zvigadziriso zvigadziriso - funga magetsi ekufambisa shongwe, migwagwa mikuru yekurinda - iyo yakareba yekudzoreredza nguva yeHDG inowanzokunda iyo lifecycle ongororo. Iko kutengeserana-kubvisa: kumberi kwekuita maitiro inopesana nekugara kwenguva refu.

Ndakashanda neanogadzira pafekitari yekuchenesa mvura yetsvina. Ivo pakutanga vakafunga masimbi esimbi asina simbi kune mamwe mapaneru ekupinda, achikwira paiyo HDG process simba. Asi ongororo yemitengo yehupenyu yakaratidza kuti mumhepo inotyisa kwazvo, kunyangwe 316 isina tsvina ingangoda kutariswa, nepo yakakora, yakashongedzwa zvakanaka HDG yekunamira pabhoti kabhoni simbi ingangopfuura iyo pachayo pachayo. Sarudzo yakadzokera kuHDG. Sarudzo yakagadzikana haisi iyo nguva dzose ine bhurocha rekugadzira rakasvibira.

Iyo Logistics uye Supply Chain Reality

Hechino chimwe chinhu icho mapepa asingakuudzire iwe: kutsvaga kunoenderana, yepamusoro-mhando HDG zvisungo pachiyero hachisi chidiki. Ukobvu hwekuvhara hunogona kusiyanisa batch kune batch. Ini ndave nekutumira uko kubatanidzwa kwetambo kwaisaenderana nekuti iyo galvanizing yakawedzera mubatch imwe. Unoda mutengesi ane kuomarara maitiro ekudzora, kwete chete galvanizing tambo.

Apa ndipo apo kubatana nemugadziri akanyudzwa mune yakakura maindasitiri ecosystem kunoita mutsauko. Tora kambani yakafanana Handan Zitai Fastener Kugadzira Co, Ltd.. Yakavakirwa muYongnian, Handan-moyo weChina wekugadzira chimbichimbi-vakakomberedzwa neyese rekutengesa cheni, kubva pawaya kudhirowa kusvika pakurongeka kwekupedzisira. Nzvimbo yavo iri pedyo nemigwagwa mikuru yekufambisa (https://www.zitafornasteers.com inocherekedza padyo neBeijing-Guangzhou Railway uye Expressways) haingori nzvimbo yekutengesa; zvinoreva kuderedzwa kwehutsi hwezvinhu zvekushandisa uye zvinhu zvakapedzwa. Kana mutengesi wako ari pakati peiyo hombe yakajairwa chikamu chekugadzira chikamu muChina, ivo vanokwanisa kuwana isingachinjike mhando yesimbi uye akasarudzika ekupa simbi evamwe vavakashanda navo kwemakore. Kusachinja-chinja ikoko imbiru yakavanzwa yekusimba-kuderedza njodzi yezvimedu zvisina kunaka zvinova zvimedu.

Iwo Kukundikana Modes: Chii Chaizvo Chinokanganisa

Sustainability ndeyewo kudzivirira kukundikana. HDG mabhaudhi haangoite ngura kuburikidza zvakafanana. Mapoinzi ekutadza akajairwa ari patambo dzakachekwa, uko kupfekedza kunogona kutetepa, uye pasi pemutoro wakasimba uko kushushikana kwekupwanya kunotanga. Ndakaona mabhaudhi pajoinhi rekuwedzera bhiriji uko iyo inogara micro-kufamba yaipfekwa nemu zinc munharaunda, zvichitungamira kugomba nekukurumidza. Rimwe bhaudhi rakange rasara rakaita seritsva.

Imwe nyaya yakavanzika ndeye galvanic corrosion. Kubatanidza bhaudhi resimbi yeHDG ine simbi isina kunaka (sealuminium) munzvimbo ine mvura inogona kumhanyisa kukora kwealuminium. Sezvineiwo, kuibatanidza kune imwe simbi inoyevedza semhangura inogona kubaira zinc yekupfekedza pamwero wekukurumidza. Unofanira kufunga pamusoro peungano yose. Kutsanangudza HDG usingatarise zvinhu zvekubatanidza inguva yakare rookie mhosho iyo inokanganisa kusimba chaiko kwauri kubhadhara.

Ipapo kune tembiricha. HDG machira akanaka kune akawanda ambient mamiriro, asi mune inoenderera-yepamusoro-tembiricha maapplication (anogara ari pamusoro pe200 ° C), iyo zinc inogona kupararira musimbi, ichiita brittle layer uye kurasikirwa kwayo kukosha kwayo kwekudzivirira. Kune purojekiti yekupinda yebhailer, taifanira kuchinjira kune yakapararira zinc-nickel coating. Chakanga chiri chidzidzo kuti yakajairwa HDG ine miganhu yayo, uye kuishandisa neupofu hakusi iko kusimba kweinjiniya.

Mutongo: Hongu Akakodzera, Ane Meso Akapinza Akavhurika

Saka, mabhaudhi anopisa-dip anobatika kuindasitiri? Kutora kwangu ndihongu akakodzera, asi kana ikashandiswa nekunzwisisa kwakadzama uye nemazvo. Iwo akasimba, akapupurirwa mhinduro kune yakakura huwandu hweakajairwa maindasitiri, kuvaka, uye zvivakwa zvikumbiro uko kureba-kureba kwekupokana nekugadzirisa kushoma ndicho chinangwa. Kugara kwavo kunopenya muchikamu chekushandisa.

Nekudaro, hazvisi zvepasi rose, zvisina mufungo. Chirevo chekusimudzira chinotsamira pane chaiyo yakatarwa (giredhi, ukobvu hwekuvharisa kusvika pachiyero), kuomarara kwehutongi panguva yekugadzira, uye kuisirwa kwakaringana uye kubatanidza nezvimwe zvinhu. Zvinoda kubvunza mupi wako mibvunzo yakaoma nezve maitiro avo, yavo simbi sosi, uye avo ekuyedza mapuroteni.

Mukupedzisira, iyo yakanyanya kusimba yekusungirira ndiyo inokodzera-kune-chinangwa, inogadzirwa nemarara inodzorwa, uye inogara zvakangofanana nekurebesa kwayo kunobata pamwe chete-hapana, kana zvishoma. Kune asingaverengeki maapplication, HDG inorova icho chiratidzo. Asi tichifunga kuti ndiyo nguva dzose mhinduro ndeyekuti isu, seindasitiri, tinogona kuita usimbe. Icho chishandiso, chakanaka kwazvo, asi kwete mashiripiti. Iko kugadzikana kwechokwadi kunobva kune hunyanzvi huri kumashure kwesarudzo uye kushandiswa kwayo.