Kupisa-kunyura kwakakurudzira kemikari mabhaudhi kusimba? 

Ngatichekei kuburikidza nekushambadzira fluff. Kana mumwe munhu achinge abvunza nezve kusimba kwemabhaudhi emakemikari anopisa-dip, vanowanzotarisira mhinduro yekusingaperi. Icho chokwadi chakashata, uye mubvunzo chaiwo hausi wekuti zinc coating, asi chii chinoitika pachiratidziro panosangana bhaudhi, chinonamira, uye nharaunda.

Kusanzwisisana Kwechipingamupinyi

Mazhinji ma specs anongo nyora ukobvu hwe galvanizing, toti, 85 microns padivi. Ndiwo matangiro akanaka, asi inhamba yekungoita. Kwandinoona mapurojekiti achimisikidzwa kufunga kuti ukobvu iyunifomu, nhovo isingapindike. Hazvisizvo. Funga nezve geometry yebhaudhi - midzi yetambo, pasi pemusoro-radius, mafurati anopwanya. Iyo zinc inoyerera panguva yekunyura inogona kuve yakatetepa mune izvi zvakasara. Kana yako substrate gomba yakaoma kana iwe uine yekumhanyisa yekumisikidza iyo inokwenya iyo yakavharwa kubva patambo panguva yekuisa, iwe uchangobva kugadzira diki-saiti yekutanga corrosion, zvisinei neiyo yezita. Wachi yekusimba inotanga kufamba nekukurumidza ipapo.

Ipapo kune kemikari anchor adhesive pachayo. Haasi ese resins anogadzirwa akaenzana. Imwe vinyl ester kana pure epoxy formulations inogona kuva nepH kana ine mamwe maamine ayo, munzvimbo inogara yakanyorova, inogona kukanganisa zinc layer kwemakumi emakore. Ini handisati ndaona kutadza kwakashata kubva pane izvi chete, asi munzvimbo ine chloride-yakapfuma-senge garaji rekupaka uko kunoshandiswa de-icing munyu - musanganiswa ndiwo muurayi. Iyo munyu inogadzira yakanyorova, conductive electrolyte iyo mabhiriji kubva kune kongiri pore mhinduro kune bhaudhi. Iyo zinc inozvipira pachayo, iro ndiro basa rayo, asi chiyero chinowedzera.

Musoro chaiwo wandakasangana nawo waiva pamhenderekedzo yegungwa retrofit. Mabhaudhi akatsanangurwa seHDG, uye chinonamira chaive chepamusoro-tier chigadzirwa. Asi, mukati memakore 7, takanga tine ngura yaichema panzvimbo yekongiri yakapoteredza washer. Ongororo yemashure yekubvisa (basa rinosemesa, rinodhura) yakaratidza kuti zinc yaive yakanyanya kurongeka pane shank, asi yaenda zvachose pamatambo mashoma ekutanga akaiswa mukongiri. Nzira yekukundikana? Mwando wakaremerwa nemunyu wakashata kumusoro kuburikidza nekutsemuka kusingaonekwi mukongiri, uchitarisa pane inonamira-ku-shinda. Iyo zingi yakadzivirira bhaudhi resimbi, asi yakaora kubva payainyanya kudiwa. Chidzidzo chaive chisiri chekuti HDG yakaipa, asi kuti kusimba kwayo kunoenderana nehurongwa.

Iyo Adhesive Bond & Iyo Yakavanzika Gap

Iyi ndiyo crux iyo catalogs isingatauri nezvayo. Simba rekemikari bhoti rinobva pachisungo pakati peresin nesimbi. Iyo yakatsetseka, nyowani zinc pamusoro yakanakira kudzivirira ngura, asi ndiyo yakanyanya kunaka nzvimbo yekuumbwa inonamira bond? Vamwe vanogadzira zvinonamira vanokuudza kuti uvhare zinc coating munharaunda yebhondi kuti uite zvakanyanya. Izvozvo zvinoratidzika zvinopesana, handizvo? Uri kubvisa dziviriro kuti uwane simba. Iko kutengeserana-kure kunoda kutonga kweinjiniya zvichienderana nekirasi yekuratidzwa.

Ndinorangarira mutengesi, Handan Zitai Fastener Kugadzira Co, Ltd. (unogona kuwana huwandu hwavo pa https://www.zitafornasteers.com), vakambokurukura pfungwa iyi. Yakavakirwa muYongnian, iyo hombe yekusimbisa hub muHebei, ivo vanoona yakawanda mbishi zvinhu uye kugadzirisa akasiyana. Vacherekedza kuti kune mabhaudhi avo emakemikari anopisa anoiswa munzvimbo dzine hukasha, dzimwe nguva vanokurudzira mwenje, inodzorwa kutsvaira-kutsvaira post-galvanizing kuti ivandudze chimiro chepamusoro chekubatanidza, pasina kukanganisa kuchengetedzwa kwakawanda kwecorrosion. Iyo inhanho ine nuanced iyo inowedzera mutengo, saka haiite mune yega yega quote, asi inotaura kune-pasi kunzwisisa kwechigadzirwa chaicho-nyika basa.

Iyo gap yakavanzika ndeimwe installer-induced durability killer. Kana gomba risina kucheneswa zvakanaka-chaizvo, zvakanaka, nebhuroshi nemhepo-unowana guruva rehupfu pakati pekunamatira nekrete. Kana, kana chinonamira chisina kubaiwa nemazvo, chichisiya chivharo chakatenderedza bhaudhi. Mukaha iwoyo unova dura remwando. Kunyange ne gobvu inopisa-dip yakadzika kuvhara, mvura yakavharirwa neokisijeni inogona kutungamirira kune mukaha wecorrosion, yenzvimbo uye yehasha nzira yekurwisa. Ndakacheka mabhaudhi aitaridzika zvakanaka kunze asi aine makomba akaomarara muhomwe dzemweya dzakavigwa idzi.

Kushanda Kwenguva Yakareba vs. Kukurumidza Kuedzwa

Mhedzisiro yekupfapfaidza yemunyu - senge 1000 maawa tsvuku ngura - chishandiso chakakoshesesa chekufananidza asi kusafanotaura kwechokwadi-yepasirese makumi emakore-kusimba kwenguva refu. Muedzo unoenderera mberi uye une hasha. Mamiriro ezvinhu chaiwo ane mvura-yakaoma cycle. Munguva yekuoma kutenderera, zinc corrosion zvigadzirwa zvinogona kuumba patina inodzivirira, ichinonoka kuwedzera kurwisa. Kusimba kunowanzo kuve nani muchokwadi kupfuura bvunzo yekupfapfaidza yemunyu, chero paine nguva idzi dzekuomesa.

Nekudaro, munzvimbo dzakanyorova zvachose, dzinopisa bhasikoro, senge pasi pedhishi rebhiriji, nyaya inoshanduka. Condensation, kushaikwa kwekuyerera, uye kushanduka kwetembiricha kunoita kuti bhaudhi rifeme rinokwevera hunyoro mukati nekubuda. Apa ndipo pandakaona kudzikira kwe zinc kuri mutsetse. Takaongorora mamwe manera ekubatisa anchor pachimiro chedhamu. The inopisa-dip yakadzika makemikari mabheti yakaratidza kufanofungidzira, kunyange zinc kurasikirwa pamusoro pemakore gumi nemashanu, zvichibvumira purogiramu yakarongwa yekugadzirisa. Chainyanya kukosha yaive mhoteredzo yaive yakaoma asi isingachinji, isingapindire.

Yekumhanyisa bvunzo zvakare inopotsa kuderedzwa kwemakanika. Kudengenyeka, kudzokororwa kwemutoro kudiki, kuwedzera kwekupisa kwesimbi bhaudhi zvichienderana nekongiri. Iyi micro-movement inogona kutyora brittle zinc-iron intermetallic layers, ichiburitsa simbi nyowani. Kana izvozvo zvangoitika, chibayiro chezinc chinova chenzvimbo uye chakanyanya pakupwanya ikoko.

Kana Yakanaka Yakakwana Isipo - Mutengo Wekupfuura-Kutsanangura

Kutyaira kwekusimba kunogona kutungamira kune-injiniya. Ndakaona ma specs achidaidza HDG makemikari mabhoti munzvimbo dzakaoma, dzemukati, dzinodzorwa nemamiriro ekunze. Iwe urikubhadharira corrosion dziviriro system isingambofa yakavhurwa. Kugara kwacho hakuperi, asi ndizvo zvingave zviri pachena kabhoni simbi bhaudhi mune iyo mamiriro. Iyo zinc inowedzera hapana kukosha ipapo.

Sezvineiwo, mumhepo inoparadza zvakanyanya mumaindasitiri (makemikari zvidyarwa, zvigayo zvemapepa), standard HDG inogona kunge iri sarudzo isiriyo kubva pakutanga. Kugara kwayo sirin'i kwakadzikira. Pano, iwe ungangoda duplex system: inopisa-dip galvanized pamwe neyemhando yepamusoro epoxy poda jasi. Iyo zinc inopa cathodic dziviriro kana iyo coating ikakuvadzwa (yakakura kuwedzera), uye epoxy inopa yakanyanya kukora, inodzivirira chipingamupinyi. Zvinodhura zvakanyanya, asi ndezvekugadzira hupenyu hwebasa hunodiwa. Kuedza kugadzira yakajairwa HDG bhaudhi kugara makore makumi mashanu munharaunda iyoyo inzira yekutadza kukasika.

Apa ndipo panouya kukosha kwemugadziri ane ruzivo. Kambani yakaita seHandan Zitai Fastener, iri munzvimbo yakakura kwazvo yekuChina yekugadzira chikamu chine ma link ayo, haingori fekitori. Ivo vanogadzira zvisingaverengeki maodha enzvimbo dzakasiyana. Hurukuro yakanaka yehunyanzvi navo inogona kukubvisa kubva pakushandisa chigadzirwa chemukati-giredhi kune chirongwa chekumberi kwemvura, kana kubva pakushandisa zvakanyanya pamarine-giredhi system yesherefu yekuchengetera. Maonero avo, akavakirwa muhukuru uye akasiyana, anowedzera dhizaini inoshanda kune iyo theoretical durability data.

Mutongo: Ihurongwa, Kwete Chikamu

Saka, kudzokera kumubvunzo wekutanga. Kusimba kwe a inopisa-dip yakadzika chemakemikari bolt haisi nhamba imwe chete. Ndiwo mhedzisiro ye: kunaka uye kuenderana kweiyo galvanizing (kupfeka ukobvu, kufukidzwa), kuenderana uye kuisirwa kwakaringana kweadhesive, kugadzirira kwekongiri substrate, uye yakananga kuratidzwa kwezvakatipoteredza (chlorides, humidity cycles, tembiricha).

Kubva pane zvandakaona pamasaiti uye mumashure mekufa, bhaudhi rakakwenenzverwa (nekutarisisa kuvharwa kweshinda), rakabatanidzwa neadhesive yakakodzera yakaiswa zvisingaite munzvimbo ine mwero, ichapa nyore 30 + makore ehupenyu hwebasa. Iko kutadza kunogara kuchidzokera kumashure kune imwe yeaya masisitimu anongedzo-kazhinji kuisirwa, dzimwe nguva kutsanangurwa kusawirirana.

Naizvozvo, usangotarisa chitupa chebhaudhi. Funga nezveungano yose. Taura maitiro ekuchenesa gomba. Funga zvakatipoteredza sezvazviri. Uye nzwisisa kuti zinc iri kuzvipira kudzivirira simbi; kusimba kwayo kunotsanangurwa chaizvo nekuti yakawanda sei yaunoda kurega kuti iparare. Dhizaina uye tsanangura uine iyo yekushandisa mupfungwa, uye iwe unowana kuita kwauri kubhadhara.