Ntụpọ ahịa nke nnukwu zinc mkpuchi galvanized ígwè ọkpọkọ
Galvanized ígwè ọkpọkọ na-ekewa n'ime oyi galvanized ígwè ọkpọkọ na ọkụ-mikpu galvanized ígwè ọkpọkọ. Amachibidoro ọkpọkọ ígwè galvanized oyi, ma steeti na-akwadokwa nke a ka e jiri ya mee ihe nwa oge. N'afọ ndị 1960 na 1970, mba ndị mepere emepe n'ụwa malitere ịmepụta ọkpọkọ ọhụrụ, a machibidokwa ọkpọkọ galvanized n'otu n'otu. Ụlọ ọrụ na-ahụ maka owuwu nke China na ụlọ ọrụ anọ ndị ọzọ na kọmitii na-eme ka o doo anya na a machibidola ọkpọkọ galvanized dị ka ọkpọkọ mmiri kemgbe 2000. A naghị ejikarị pipụ galvanized na ọkpọkọ mmiri oyi na mpaghara ọhụrụ, a na-ejikwa ọkpọkọ galvanized na ọkpọkọ mmiri ọkụ. n'obodo ụfọdụ. Hot itinye galvanized ígwè ọkpọkọ na ọtụtụ ebe na-eji ọkụ ọgụ, ọkụ eletrik na expressway. Hot itinye galvanized ígwè ọkpọkọ na-ọtụtụ ebe na-ewu, ígwè, coal Ngwuputa, chemical ụlọ ọrụ, eletriki eletrik, ụgbọ okporo ígwè ụgbọ okporo ígwè, ụgbọala ụlọ ọrụ, okporo ụzọ, àkwà mmiri, containers, egwuregwu ụlọ ọrụ, ugbo ígwè, mmanụ ala ígwè, exploration ígwè na ndị ọzọ na-emepụta ihe.
welded ígwè ọkpọkọ na-ekpo ọkụ-mikpu ma ọ bụ electro galvanized mkpuchi n'elu galvanized ígwè ọkpọkọ. Galvanizing nwere ike ịbawanye nguzogide corrosion nke ọkpọkọ ígwè ma mee ka ndụ ha dịkwuo ogologo. A na-eji ọkpọkọ galvanized eme ihe n'ọtụtụ ebe. Na mgbakwunye na eji ya dị ka pipeline pipe maka nnyefe mmiri, gas, mmanụ na ndị ọzọ n'ozuzu ala-nrụgide mmiri mmiri, ọ na-ejikwa dị ka mmanụ ọma pipe pipe na mmanụ nnyefe mmanụ na mmanụ ụgbọala ụlọ ọrụ, karịsịa n'ọdụ ụgbọ mmiri mmanụ, mmanụ ọkụ, condensate cooler. na coal distillation mmanụ asa Exchanger nke chemical coking ngwá, trestle ọkpọkọ ikpo, support etiti ọkpọkọ nke m ọwara, wdg Hot itinye galvanized ọkpọkọ bụ ime ka wụrụ awụ metal-eme na ígwè matrix na-emepụta alloy oyi akwa, nke mere ka ikpokọta matriks na mkpuchi. . Hot itinye galvanizing na-ekpo ọkụ bụ pickle ígwè ọkpọkọ mbụ. Iji wepụ ígwè oxide n'elu ígwè ọkpọkọ, mgbe pickling, ọ na-ehicha na ammonium chloride ma ọ bụ zinc chloride aqueous ngwọta ma ọ bụ ammonium chloride na zinc chloride agwakọta aqueous ngwọta tank, wee zigara na-ekpo ọkụ itinye galvanizing tank. Galvanizing na-ekpo ọkụ na-ekpo ọkụ nwere uru nke mkpuchi otu, ike nkedo na ogologo ndụ ọrụ. Matriks nke ọkpọkọ nchara na-ekpo ọkụ na-ekpo ọkụ nwere mmeghachi omume anụ ahụ na kemịkalụ gbagwojuru anya ya na ngwọta a wụrụ awụ iji mepụta oyi akwa zinc ferroalloy na-eguzogide corrosion nwere usoro kọmpat. A na-ejikọta oyi akwa alloy na akwa zinc dị ọcha na matrix ọkpọ ígwè, ya mere ọ nwere nguzogide corrosion siri ike. Oyi galvanized ọkpọkọ bụ electro galvanized. Ọnụ ego nke galvanized dị obere, naanị 10-50g / m2. Nguzogide corrosion ya dị nnọọ iche na nke ọkpọkọ galvanized na-ekpo ọkụ. Iji hụ na ọ dị mma, ọtụtụ ndị na-emepụta ọkpọkọ galvanized mgbe niile anaghị eji electro galvanizing (oyi plating). Naanị obere ụlọ ọrụ ndị nwere obere nha na akụrụngwa ochie na-eji electro galvanizing, n'ezie, ọnụahịa ha dị ọnụ ala. Ministri na-ahụ maka owuwu ekwupụtala n'ihu ọha na a ga-ekpochapụ ọkpọkọ galvanized oyi na teknụzụ azụ na a gaghị eji ya dị ka ọkpọkọ mmiri na gas. The galvanized oyi akwa nke oyi galvanized ígwè ọkpọkọ bụ ihe electroplating oyi akwa, na zinc oyi akwa kewapụrụ na ígwè ọkpọkọ mkpụrụ. Igwe zinc ahụ dị gịrịgịrị, na oyi akwa zinc na-ejikọta ya na matrix ọkpọkọ ígwè, nke dị mfe ịdapụ. Ya mere, nguzogide corrosion ya adịghị mma. N'ụlọ ọhụrụ, a machibidoro iwu iji ọkpọkọ ígwè galvanized oyi dị ka ọkpọkọ mmiri.
Ọkpụrụkpụ mgbidi ọnụ (mm): 2.0, 2.5, 2.8, 3.2, 3.5, 3.8, 4.0, 4.5.
Ngwakọta ọnụ (c): 1.064, 1.051, 1.045, 1.040, 1.036, 1.034, 1.032, 1.028.
Rịba ama: ihe eji arụ ọrụ nke ígwè bụ ihe ntinye dị mkpa iji hụ na arụmọrụ ikpeazụ nke ọrụ (ihe eji arụ ọrụ) nke ígwè, nke na-adabere na ihe mejupụtara kemịkalụ na usoro ọgwụgwọ okpomọkụ nke ígwè. Na ọkọlọtọ ọkpọkọ ígwè, dị ka ọrụ dị iche iche dị iche iche si dị, a na-akọwapụta ihe ndị na-emepụta ihe (ike ike, ike na-enye ike ma ọ bụ nkwụsị mkpụrụ, elongation), ike na ike siri ike, yana ihe dị elu na okpomọkụ dị ala nke ndị ọrụ chọrọ.
Ọkwa ígwè: q215a; Q215B; Q235A; Q235B.
Uru nrụgide ule / MPA: d10.2-168.3mm bụ 3Mpa; D177.8-323.9mm bụ 5MPa
Ọkọlọtọ mba na ụkpụrụ nke ọkpọkọ galvanized
GB / t3091-2015 welded ígwè ọkpọkọ maka obere nrụgide mmiri njem
Ọkpụkpọ igwe kwụ ọtọ kwụ ọtọ (GB / t13793-2016)
GB / t21835-2008 welded ígwè anwụrụ akụkụ na arọ kwa nkeji ogologo
A na-ejikarị ọkpọkọ galvanized eme ihe bụ na ọkpọkọ ígwè a na-eji gas na ikpo ọkụ bụkwa ọkpọkọ galvanized. Dị ka ọkpọkọ mmiri, ọkpọkọ galvanized na-emepụta nnukwu nchara na ọkpọkọ mgbe ọtụtụ afọ ejiri ya. Mmiri na-acha odo odo abụghị nanị na-emetọ ihe ndị dị ọcha, kamakwa ọ na-ejikọta ya na nje bacteria na-amụba na mgbidi dị n'ime na-adịghị mma. Nrụrụaka na-ebute oke ọla dị arọ na mmiri na-etinyekwa ahụike mmadụ n'ihe egwu.
Usoro eruba bụ nke a: nwa tube - alkali ịsacha - mmiri ịsacha - acid pickling - rinsing na mmiri dị ọcha - Leaching additives - ihicha - hot dip galvanizing - Mpụga ịfụ - n'ime ime - ikuku jụrụ - mmiri jụrụ - passivation - mmiri rinsing - Nyocha - ịtụ - nkwakọba ihe.
1. Brand na chemical mejupụtara
Ọkwa na ihe mejupụtara kemịkalụ nke ígwè maka ọkpọkọ galvanized ga-agbaso ọkwa na nhazi kemịkalụ nke ígwè maka ọkpọkọ ojii akọwapụtara na GB / t3091.
2. Usoro nrụpụta
A ga-ahọrọ usoro nrụpụta nke ọkpọ ojii (ọkụ ọkụ ma ọ bụ ịgbado ọkụ eletrik) site na onye nrụpụta. A ga-anakwere usoro ịgbanye ọkụ na-ekpo ọkụ maka galvanizing.
3. Njikọ eriri na ọkpọkọ
(a) N'ihi na galvanized ígwè ọkpọkọ na-ebunye na eri, eri ga-atụgharị mgbe galvanized. Eriri ahụ ga-agbaso Yb 822.
(b) Njikọ ọkpọ ígwè ga-agbaso Yb 238; Njikọ ọkpọkọ nke nkedo a na-agbagharị agbagharị ga-agbaso Yb 230.
4. Mechanical Properties na n'ibu Njirimara nke ígwè ọkpọkọ tupu galvanizing ga-agbaso ndokwa nke GB 3091.
5. A ga-anwale ịdị n'otu nke mkpuchi galvanized galvanized ọkpọkọ ígwè maka ịdị n'otu nke mkpuchi galvanized. A ga-etinye ihe nlele igwe nchara nchara n'ihu na ngwọta sulfate ọla kọpa maka oge 5 ma ọ gaghị atụgharị uhie (agba ọla kọpa).
6. Nnwale ịgbado oyi: ọkpọ ígwè galvanized na dayameta aha na-abụghị karịa 50mm ga-adị n'okpuru ule ịgbado oyi. The ekwe n'akuku bụ 90 Celsius, na ekwe radius bụ 8 ugboro nke mpụta dayameta. N'oge ule na-enweghị ndochi, a ga-etinye weld nke ihe nlele ahụ n'èzí ma ọ bụ akụkụ elu nke ntụziaka na-ehulata. Mgbe ule ahụ gasịrị, ihe nlele ahụ agaghị enwe ntụpọ na spalling nke oyi akwa zinc.
7. A ga-eme ule hydrostatic na nyocha nke hydrostatic na ọkpọ ojii, ma ọ bụ eddy ntụpọ ntụpọ nwere ike iji mee ihe kama nyocha hydrostatic. Nrụgide ule ma ọ bụ nha nke ihe atụ atụnyere maka nchọpụta ntụpọ eddy ugbu a ga-agbaso usoro nke GB 3092. Ngwongwo igwe nke ígwè bụ ihe dị mkpa index iji hụ na ọrụ ikpeazụ (mechanical onwunwe) nke ígwè,
① Ike ike (σ b): ike kachasị (FB) nke ihe nlere na-ebu n'oge esemokwu, kewara site na ebe mbụ cross-section (ya) nke ihe atụ ((σ), A na-akpọ ike ike (σ b) , na N / mm2 (MPA). Ọ na-anọchi anya ikike kachasị nke ihe igwe iji guzogide ọdịda n'okpuru esemokwu. Ebe: FB -- ike kachasị nke ihe nlele na-ebute mgbe agbajiri ya, n (Newton); Ya mere -- akụkụ izizi nke ihe nlele, mm2.
② Ọnụ mkpụrụ (σ s): n'ihi na ihe ndị na-emepụta ihe na-emepụta ihe na-emepụta ihe, nrụgide mgbe ihe atụ ahụ nwere ike ịga n'ihu na-agbatị na-enweghị ụba (na-anọgide na-adịgide adịgide) nrụgide n'oge usoro nkwụsịtụ, nke a na-akpọ ebe mkpụrụ. Ọ bụrụ na nrụgide ahụ na-ebelata, a ga-amata isi ihe dị elu na nke ala. Akụkụ nke mkpụrụ mkpụrụ bụ n / mm2 (MPA). Ebe mkpụrụ nke elu (σ Su): nrụgide kachasị tupu nrụgide mkpụrụ nke ihe nlele na-ebelata maka oge mbụ; Ebe mkpụrụ osisi dị ala (σ SL): nrụgide kacha nta na ọkwa mkpụrụ mgbe anaghị atụle mmetụta mbụ ozugbo. Ebe: FS --mkpụrụ nrụgide (mgbe niile) nke sample n'oge esemokwu, n (Newton) so - mbụ cross-ngalaba nke sample, mm2.
③ Elongation mgbe agbajiri agbaji: (σ) N'ime ule nyocha, pasent nke ogologo na-abawanye site na nlele ogologo nke ihe nlele mgbe ọ gbajisịrị na ogologo nlele mbụ a na-akpọ elongation. na σ Kwuru na%. Ebe: L1 - ogologo nlele mgbe agbajichara nlele, mm; L0 -- ogologo nlele izizi nke nlele, mm.
④ Mbelata mpaghara: (ψ) N'ime ule nyocha, pasent n'etiti mbelata kachasị elu nke mpaghara obe na-ebelata oke na ebe a na-ebufe ihe mbụ mgbe a na-agbaji ihe atụ ahụ ka a na-akpọ mbelata mpaghara. na ψ Kwuru na%. Ebe: S0 -- ebe mbụ n'ofe akụkụ nke sample, mm2; S1 -- Opekempe mpaghara oke na dayameta belatara mgbe agbajichara nlele, mm2.
⑤ Index ike siri ike: ike nke ihe igwe na-eguzogide nbata nke ihe siri ike ka a na-akpọ ike. Dị ka usoro ule dị iche iche na ngwa ngwa si dị, enwere ike kewaa isi ike n'ime brinell hardness, Rockwell hardness, Vickers hardness, shore hardness, microhardness na elu okpomọkụ ike. Brinell, Rockwell na Vickers siri ike na-ejikarị maka ọkpọkọ.
Brinell hardness (HB): pịa bọọlụ nchara ma ọ bụ bọọlụ cemented carbide nwere dayameta ụfọdụ n'ime ihe nlele ahụ yana ike nnwale a kapịrị ọnụ (f), wepụ ike nnwale mgbe oge ejidere akọwapụtara, wee tụọ dayameta indentation (L) na elu sample. Nọmba hardness nke brinell bụ ọnụọgụ nke enwetara site n'ikewa ike nnwale site na mpaghara okirikiri nke indentation. Kwuru na HBS (bọọlụ igwe), nkeji: n / mm2 (MPA).
(1) Carbon; Ihe dị elu nke carbon carbon, otú ahụ ka ike siri ike nke ígwè dị elu, mana ọ ka njọ plasticity na ike
(2) sọlfọ; Ọ bụ adịghị ọcha na-emerụ ahụ na ígwè. Steel nwere sọlfọ dị elu dị mfe ịmịnye n'oge nhazi nrụgide na okpomọkụ dị elu, nke a na-akpọkarị embrittlement thermal.
(3) phosphorus; Ọ nwere ike belata plasticity na ike nke ígwè, karịsịa na obere okpomọkụ. A na-akpọ ihe omume a oyi brittleness. Na nchara dị elu, sọlfọ na phosphorus kwesịrị ịchịkwa nke ọma. N'aka nke ọzọ, obere carbon ígwè nwere nnukwu sọlfọ na phosphorus, nke nwere ike ime ka ọ dị mfe ịkpụ, nke bara uru iji melite machinability nke ígwè.
(4) manganese; Ọ nwere ike imeziwanye ike nke ígwè, mee ka ike gwụ ma kpochapụ mmetụta ọjọọ nke sọlfọ, ma melite ike nke ígwè. Alloy alloy ígwè (elu manganese ígwè) na nnukwu manganese ọdịnaya nwere ezigbo eyi nguzogide na ndị ọzọ anụ ahụ Njirimara
(5) silicon; Ọ nwere ike melite ike nke ígwè, ma plasticity na ike na-ebelata. Igwe eletrik nwere ụfọdụ silicon, nke nwere ike imeziwanye ihe ndọta dị nro
(6) Tungsten; Ọ nwere ike melite ike na-acha uhie uhie na ike ọkụ nke ígwè, ma melite nkwụsị nke ígwè
(7) Chromium; Ọ nwere ike imeziwanye ike ike na iyi nguzogide ígwè, ma melite nguzogide corrosion na nguzogide oxidation nke ígwè
Iji meziwanye nguzogide corrosion nke ígwè ọkpọkọ, a na-eji galvanized nchara nchara n'ozuzu (paịpụ ojii). Galvanized ígwè ọkpọkọ na-ekewa n'ime ọkụ-mikpu galvanizing na electric ígwè zinc. Igwe na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-efu na ọnụ ahịa galvanizing eletrik dị ala, ya mere enwere ọkpọkọ ígwè.
