Steel isakhiwo enamathela enamathela umlilo ihlukaniswe yiziphi izigaba

1. Indlela yokwakha enamathelayo engangeni umlilo

A. Indlela yokukhuhla B. Indlela yokumboza nge-roller C. Indlela yokuxubha D. Indlela yokufafaza nge-compressor E. Indlela yokufafaza okungenamoya

I-1, indlela yokuqala yokwakha iyindlela evame kakhulu yokukhuhla: evame ukusetshenziswa njenge-fiberglass scraper, i-horn scraper, i-plastic scraper, ishidi lerabha eliqinile kanye namanye amathuluzi okukhuhla ensimbi noma angewona awensimbi, kuzoba ubuso bento ehlukahlukene. udaka oluqinile oluvikela umlilo noma imifantu kanye nengxenye eyeqile yokukhuhla.

I-2, indlela yesibili yokwakha iyindlela yokugqoka i-roller: indlela yokugqoka i-roller ngokuvamile isetshenziswa ekwakhiweni kodonga, ku-roller ebusweni bopende wokunamathisela, bese igoqa emuva naphambili phezu kodonga.

I-3, indlela yesithathu yokwakha i-brush enamathela indlela: indlela yokugqoka ibhulashi ayisebenzi kuphela ekwakhiweni kodonga, noma yikuphi okunye ukuma kobuso bento kungasebenza, iningi lezingubo zokuvimbela umlilo zingakhiwa ngale ndlela.

I-4, indlela yesine yokwakha iyindlela yokufafaza i-compressor yomoya: ukusetshenziswa kwe-air compressor pressurisation ngesibhamu sokufafaza kuzofafazwa ebusweni bento ngemuva kwe-atomisation kapende, ikhwalithi yokumboza ngemva kokufafaza ifana, ukusebenza kahle kokukhiqiza. iphezulu kakhulu. I-5, indlela yesine yokwakha ukufutha okungenamoya: ukusetshenziswa kwamaphampu e-plunger, amaphampu e-diaphragm nezinye izinhlobo zamaphampu acindezelweyo kuzocindezelwa ngopende owuketshezi, bese kuthi ngepayipi lokucindezela okuphezulu liye kwisibhamu sokufafaza esingenawo umoya, futhi ekugcineni singene. i-nozzle engenawo umoya yokukhulula ukucindezela kwe-hydraulic, i-atomisation esheshayo, bese i-coating yokuvikela umlilo ingasetshenziswa ngale ndlela. Ukucindezela kwe-hydraulic, i-atomisation esheshayo ifafazwa ebusweni bento eboshiwe ukuze kwakhe ungqimba olunamathelayo.

Isakhiwo sensimbi isakhiwo esakhiwe ngezinto zensimbi futhi ingenye yezinhlobo eziyinhloko zezakhiwo zokwakha. Isakhiwo sakhiwe ngokuyinhloko imishayo, amakholomu ensimbi, izigxobo zensimbi nezinye izinto ezenziwe ngamaphrofayili ensimbi namapuleti ensimbi, njll., futhi samukela ukususwa kokugqwala kanye nezinqubo zokulwa nokugqwala ezifana ne-silanization, i-phosphating emsulwa ye-manganese, ukuwasha nokomisa, kanye nokufaka imfucumfucu. Ama-welds, ama-bolts noma ama-rivets ngokuvamile asetshenziselwa ukuxhuma izingxenye noma izingxenye. Ngenxa yokukhanya kwayo okuzisindayo nokwakhiwa kalula, isetshenziswa kakhulu ezimbonini ezinkulu, ezinkundleni, eziphakeme kakhulu nakweminye imikhakha.

(1) Ingahlukaniswa ngesakhiwo sensimbi esekwe ku-solvent-based i-coating engashi nomlilo kanye nesakhiwo sensimbi esekwe emanzini nge-fire coating ngokusho kohlobo lwe-binder. Isakhiwo sensimbi esekwe kuncibilikisiwe okokuvikela okungashisi kungahlukaniswa ngesakhiwo sensimbi esincibilikisiwe esingashi nokuqukethwe kwe-benzene okuphansi kanye nesakhiwo sensimbi esincibilikisiwe esingashi nokuqukethwe okuphezulu kwe-benzene.

(2) Ngokwendawo yokusetshenziswa, ingahlukaniswa: yangaphakathi (N) isakhiwo sensimbi esingenamlilo: sisetshenziswe ebusweni besakhiwo sensimbi semiklamo yangaphakathi noma efihliwe yezakhiwo; Isakhiwo sensimbi sangaphandle (W) i-coating engashisi umlilo: isetshenziswa phezu kwesakhiwo sensimbi samaphrojekthi angaphandle noma avulekile ezakhiwo.

(3) Ngokusho kobukhulu bokusetshenziswa, ingahlukaniswa: uhlobo oluncane kakhulu (CB) isakhiwo sensimbi esingashisi umlilo: ukujiya kwe-coating ≤3mm; uhlobo oluncane (B) insimbi isakhiwo enamathela enamathela: enamathela ukushuba 3mm-7mm; uhlobo oluwugqinsi (H) isakhiwo sensimbi enamathela umlilo: ukujiya ungqimba 8-50mm.

Ulwazi Olunwetshiwe

Ngokuthuthuka kwesikali samadolobha aseShayina, ukusetshenziswa kwesakhiwo sensimbi embonini yezokwakha yaseChina kunethuba elibanzi kakhulu. Kodwa-ke, njengoba isakhiwo sensimbi ngokwaso singashi, indaba yokuvikela ukushisa nokushisa kwesakhiwo sensimbi yake yanganakwa. Ngokwemibiko yedatha yasekhaya neyamazwe ngamazwe kanye nokuhlolwa kanye nezibalo ezivela ezinhlanganweni ezifanele, ukumelana nomlilo wezakhiwo zensimbi kubi kakhulu kunokwakhiwa kwamatshe kanye nezakhiwo zikakhonkolo eziqinisiwe.

Amandla ensimbi ensimbi ayancipha ngokukhuphuka kwezinga lokushisa, futhi amandla awo ehla aze afike ku-40% -50% cishe ku-500 ℃, kanye nezakhiwo zensimbi zensimbi, njengephuzu lokukhiqiza, amandla okucindezela, i-modulus of elasticity, nomthamo womthwalo, njll., yehla ngokushesha, futhi ngokushesha ilahlekelwa amandla okusekela isakhiwo, okuholela ekuweni kwesakhiwo. Ngakho-ke, kubalulekile ukuvikela isakhiwo sensimbi.

Isakhiwo sensimbi esinamathelayo esingangenwa umlilo siyabhulashwa noma sifuthwe ebusweni besakhiwo sensimbi, esidlala indima yokuvikela umlilo nokushisa ukushisa, sivimbela insimbi ekushiseni ngokushesha futhi yehlise amandla ayo emlilweni, futhi igwema isakhiwo sensimbi ekulahlekelweni amandla aso okusekela futhi okuholela ekuweni kwesakhiwo.

Kusukela ekuqaleni kwawo-1970, ucwaningo lwangaphandle kanye nokusetshenziswa kwesakhiwo sensimbi esinamathelayo sensimbi siqale umsebenzi osebenzayo futhi senza impumelelo enhle, futhi lusakhuphuka.

Ekuqaleni kweminyaka yama-80s, ukufakwa kwensimbi yangaphandle kwesakhiwo sokuvikela umlilo kwangena emakethe yaseShayina futhi kwasetshenziswa kuphrojekthi. Kusukela ekuqaleni kwawo-80, i-China nayo yaqala ukuthuthukisa i-steel structure coating engashi, kuze kube manje kunezinhlobo eziningi ezinhle ezisetshenziswa kabanzi ezimbonini ezihlukahlukene.

2.Thin-type steel isakhiwo enamathela enamathelayo

Isakhiwo sensimbi esincanyana sensimbi esinamathelayo sibhekisela esakhiweni sensimbi esinamathela ekushiseni esinogqinsi olungaphezu kuka-3mm, olungaphansi noma olulingana no-7mm, olunomphumela othile wokuhlobisa, ukunwetshwa nokuqina ekushiseni okuphezulu, nomkhawulo wokumelana nomlilo phakathi kuka-2h. Lolu hlobo lwesakhiwo sensimbi olunamathelayo oluvikela umlilo ngokuvamile lwenziwa ngama-polymers asekelwe emanzini afanelekile njengesisekelo sezinto, bese efaniswa nesistimu eyinhlanganisela evimbela umlilo, izithasiselo zomlilo, imicu engashi, njll., futhi isimiso salo sokuvikela umlilo siyafana nalokho yohlobo oluncane kakhulu. Ngalolu hlobo lwe-coatproof coating, i-polymer ekhethiwe yamanzi kufanele ibe nokunamathela okuhle, ukuqina nokumelana namanzi ku-substrate yensimbi. Impahla yayo yokuhlobisa ingcono kunoqweqwe oluwugqinsi olungashi, ingaphansi kwesakhiwo sensimbi esincanyana kakhulu esingashi, futhi umkhawulo ojwayelekile wokumelana nomlilo ungaphakathi kwama-2h. Ngakho-ke, kuvame ukusetshenziswa kuphrojekthi yensimbi yokuvikela umlilo enomkhawulo wokumelana nomlilo ngaphansi kwe-2h, futhi ngokuvamile yamukela ukwakhiwa kokufafaza. Ithatha ingxenye enkulu esikhathini esithile, kodwa ngokubonakala kwesakhiwo sensimbi esincanyana kakhulu esingashi, isabelo sayo semakethe siyashintshwa kancane kancane.

3.Thick steel isakhiwo enamathela enamathelayo

Isakhiwo sensimbi ewugqinsi Isinamathela esiqinile esingashi sibhekisela esakhiweni sensimbi esinamathela ekushisweni esinogqinsi olungaphezulu kuka-7mm, ngaphansi noma okulingana no-45mm, indawo eyimbudumbudu, ukuminyana okuphansi, ukuqhutshwa kokushisa okuphansi, kanye nomkhawulo wokumelana nomlilo ongaphezu kuka-2h. Njengoba izingxenye ze-coating eqinile engashisi ngokuvamile ziyizinto ezingaphili, ukusebenza kwayo okungashisi kuzinzile futhi ukusetshenziswa kwesikhathi eside kungcono, kodwa izinhlayiya zezingxenye zayo zokumboza zinkulu futhi ukubukeka kwe-coating akulingani, okuthinta ubuhle obuphelele be-aesthetics. isakhiwo, ngakho-ke sisetshenziswa kakhulu kumaphrojekthi wokufihla izakhiwo. Lolu hlobo lwe-coating engashi emlilweni kusetshenziswa indawo eyimbudumbudu, ukuminyana okuncane, ukuhanjiswa kwe-thermal okuphansi noma ukumuncwa kokushisa kwento esekwe enamathelayo, kubambezela ukukhuphuka kwezinga lokushisa kwensimbi ukuze kuvikelwe insimbi. Lolu hlobo lokumbozwa komlilo luyisibopho esifanelekile se-inorganic (njengengilazi yamanzi, i-silica sol, i-aluminium phosphate, usimende we-refractory, njll.), bese kuba ne-inorganic lightweight adiabatic aggregate materials (njenge-perlite enwetshiwe, i-vermiculite enwetshiwe, i-sea hugger, i-bleached. ubuhlalu, umlotha womlotha, njll.), izithasiselo zomlilo, amakhemikhali nezinto zokuqinisa (njengemicu ye-aluminium silicate, i-rock wool, imicu ye-ceramic, imicu yengilazi, njll.) kanye nezigcwalisi, njll., ezixutshwe futhi zalungiswa, ezinenani elibiza kakhulu. izinzuzo zezindleko eziphansi. Ukwakhiwa kuvame ukuthatha isifutho, esifanele isakhiwo sensimbi esifihliwe esingaphakathi nangaphandle esinomkhawulo wokumelana nomlilo ngaphezu kwe-2h, isakhiwo esiphezulu sensimbi yonke kanye nesakhiwo sensimbi yezitshalo eziningi. Isibonelo, umkhawulo wokumelana nomlilo wamakholomu ezakhiwo eziphakeme eziphakeme zomphakathi namakholomu asekela izitezi eziningi ezakhiweni ezijwayelekile zezimboni nezomphakathi kufanele ufinyelele ku-3h, futhi udinga ukuvikelwa ukunamathela okuqinile okungashi. esakhiweni sensimbi, igwebu elingashi, elinogqinsi oluyi-3mm (kuhlanganise no-3mm) noma ngaphansi, elinomphumela omuhle wokuhlobisa, likhula futhi libe namagwebu ekushiseni okuphezulu, kanye nomkhawulo wokumelana nomlilo ongu-2h noma ngaphansi. Lolu hlobo lwesakhiwo sensimbi olunamathelayo oluvikela umlilo ngokuvamile luwuhlelo olusekelwe ku-solvent, olunamandla anamathelayo aphezulu, ukumelana nesimo sezulu esihle nokumelana namanzi, izinga elihle, izici ezinhle zokuhlobisa; lapho ingaphansi komlilo, ikhula kancane kancane futhi ibe namagwebu ukuze kwakhiwe ungqimba oluqinile lokuvikela ukushisa okungangeni umlilo, olunamandla okumelana nomlilo, lubambezela ukukhuphuka kwezinga lokushisa kwensimbi, futhi luvikele izingxenye zensimbi ngempumelelo. Ukwakhiwa kwe-ultra-thin steel intumescent intumescent inamathela engashi ingafuthwa, ibhulashwe noma ivalwe ngerola, ngokuvamile isetshenziswe ezidingweni zomkhawulo ongashi phakathi kwamahora angu-2 esakhiweni sensimbi yesakhiwo. Kunezinhlobonhlobo ezintsha zesakhiwo sensimbi esizacile kakhulu sezingubo ezingashi ezisebenza ukumelana nomlilo ezifinyelela noma ezedlula u-2h, ezisekelwe kakhulu esakhiweni esikhethekile se-polymethacrylate noma i-epoxy resin ne-amino resin, i-wax kapharafini ekloriniwe, njll. njenge-base material binder, nge-polymerisation ephezulu ye-polyphosphoric acid ammonium usawoti, i-dipentaerythritol, i-melamine nokunye njengendlela yokuvikela umlilo kanye nesistimu evimbela ilangabi, ukwengeza i-titanium dioxide, i-wollastonite nezinye izinto eziphikisayo ezingaphili ku-200 # uwoyela we-solvent njengenhlanganisela ye-solvent. Amafutha e-solvent asetshenziswa njenge-solvent. Zonke izinhlobo zesakhiwo sensimbi ekhanyayo, ifreyimu yenetha nokunye ngokuvamile zisebenzisa lolu hlobo lwe-coating engashi ukuze kuvikelwe umlilo. Ngenxa ye-ultra-thin coating yalolu hlobo lwe-coating engashisi umlilo, ukusetshenziswa kwesakhiwo sensimbi esiqinile futhi esincanyana sensimbi esingenamlilo sincipha kakhulu, ngaleyo ndlela kunciphisa izindleko eziphelele zephrojekthi, kodwa futhi nokwenza isakhiwo sensimbi sithole ukuvikelwa komlilo okuphumelelayo, futhi umphumela wokuvikela umlilo muhle kakhulu.