Ngexesha lofakelo kunye nokubekwa kweqonga lesakhiwo se-galvanized steel grating, kudla ngokudibana ukuba imibhobho okanye izixhobo kufuneka zidlule.intsimbi yokugawulaiqonga ngokuthe nkqo. Ukuze izixhobo zombhobho zikwazi ukudlula kwiqonga ngokucokisekileyo, ngokuqhelekileyo kuyimfuneko ukugqiba indawo kunye nobukhulu beendawo zokuvula ngexesha lenkqubo yokuyila, kwaye umenzi wensimbi yensimbi uya kwenza imveliso eyenziwe ngokwezifiso. Inkqubo yokuvelisa ngokwezifiso kuqala idinga unxibelelwano oluninzi kunye nolwazi phakathi kwesebe loyilo lwe-steel grating kunye nesebe loyilo lwesakhiwo sensimbi, umboneleli wezixhobo kunye nesebe lokuhlola kunye nemephu. Ngenxa yezinto ezininzi ezinxulumeneyo ezibandakanyekayo, kukho ukungaqiniseki okuthile kubungakanani kunye nendawo yezixhobo zangoku. Ngexesha lofakelo, kudla ngokuba yimeko yokuba imingxuma egcinwe ngokwezifiso ayikwazi ukuhlangabezana neemfuno zesayithi. Ngenxa yale meko, ukuze kuqinisekiswe izinga lokuvunwa kweentsimbi zentsimbi kunye nokuphucula uyilo kunye nokusebenza kakuhle kwegridi yentsimbi, kuyilo lwangoku kunye nenkqubo yokuvelisa, ngokuthetha ngokubanzi, eminye imingxunya enobubanzi obuncinci ekunzima ukuyifumanisa ayilungiswanga kwaye icutshungulwe, kodwa ithathelwe indawo yinkqubo yesibini efana nokuvulwa kwesiza, ukusika, ukuwelda, kunye nokusila ngokuhambelana nemeko yokufakelwa kwentsimbi ngexesha lokwakhiwa kwentsimbi.
Njengesixhobo esitsha, i-galvanized steel grating isanda kusetyenziswa ngokubanzi. I-galvanizing ibe yindlela ebalulekileyo yokulwa ne-corrosion ye-gratings yensimbi, kungekhona nje ngokuba i-zinc inokwenza i-dense layer ekhuselayo phezu kwentsimbi, kodwa nangenxa yokuba i-zinc inefuthe lokukhusela i-cathodic. Xa i-galvanized steel grating ihanjiswa kwisiza, ukuqhutyelwa kwesibini kunye ne-welding ngamanye amaxesha kuyadingeka ukuze kufakwe. Ubukho be-zinc layer kuzisa ubunzima obuthile kwi-welding ye-galvanized steel grating.
Uhlalutyo lwe-weldability ye-galvanized steel gratings
Iintsimbi zensimbi ezifakwe kwi-galvanized zifakwe ngoluhlu lwe-zinc yensimbi phezu komgangatho we-steel grating ukukhusela ukubola phezu komgangatho wentsimbi kunye nokwandisa ubomi bayo benkonzo. Umphezulu we-galvanized steel grating uya kuba yintyatyambo. Ngokwemveliso kunye neendlela zokusetyenzwa, inokohlulwa ngokwezi ndidi zilandelayo: ① ishidi legalvanized dip eshushu; ② ishidi lentsimbi ye-electrogalvanized. Indawo yokunyibilika ye-zinc yi-419℃ kwaye indawo yokubilisa yi-907℃, esezantsi kakhulu kunendawo yokunyibilika kwentsimbi, i-1500℃. Ngoko ke, ngexesha lenkqubo ye-welding, i-galvanized layer iqala inyibilika izinto zomzali. Emva kolu hlalutyo lungentla, iipropathi zoomatshini kunye nezomzimba zamaphepha e-galvanized ziyafana nezo ze-carbon steel sheet eziqhelekileyo. Ukwahlukana kuphela kukuba kukho i-zinc yokugqoka phezu komgangatho we-galvanized steel grating. Inkqubo ye-welding ye-galvanized steel grating
(1) Ukuwelda kwe-arc ngesandla
Ukuze kuncitshiswe umsi we-welding kwaye uthintele isizukulwana sokuqhekeka kwe-welding kunye nama-pores, i-zinc layer kufuphi ne-groove kufuneka isuswe ngaphambi kwe-welding. Indlela yokususa ingaba yi-flame baking okanye i-sandblasting. Umgaqo wokukhetha iintonga ze-welding kukuba iimpawu ze-mechanical weld metal kufuneka zisondele kangangoko kunokwenzeka kwizinto zomzali, kunye nomxholo we-silicon kwi-welding yemihla ngemihla yentsimbi etyhidiweyo kufuneka ilawulwe ngaphantsi kwe-0.2%. Kwimibuko yensimbi ephantsi kwekhabhoni ye-zinc, i-J421 / 422 okanye i-J423 ye-welding rods kufuneka isetyenziswe kuqala. Xa udibanisa, zama ukusebenzisa i-arc emfutshane kwaye ungajingi i-arc ukuthintela ukwandiswa kwendawo etyhidiweyo yomaleko owenziwe ngamagalvanized, qinisekisa ukuxhathisa kwe-corrosion ye-workpiece kunye nokunciphisa umsi womsi.
(2) Intsimbi ye-arc welding
Sebenzisa i-CO2 yegesi ekhuselwe ukuwelda okanye i-welding yegesi edibeneyo ekhuselekileyo njenge-Ar+CO2, i-Ar+02 yokuwelda. Igesi ekhuselayo inempembelelo ebalulekileyo kumxholo weZn kwi-weld. Xa i-CO2 ecocekileyo okanye i-CO2 + 02 isetyenziswe, umxholo we-Zn kwi-weld uphezulu, ngelixa i-Ar + CO2 okanye i-Ar + 02 isetyenzisiweyo, umxholo we-Zn kwi-weld uphantsi. Ikhoyo ngoku inempembelelo encinci kumxholo weZn kwi-weld. Njengoko i-welding yangoku inyuka, umxholo we-Zn kwi-weld uyancipha kancane. Xa usebenzisa i-gas shielded welding to weld galvanized steel grating, i-welding fume inkulu kakhulu kuneyo ye-arc welding manual, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe ukukhupha. Izinto ezichaphazela ubungakanani kunye nokubunjwa komphunga ikakhulu yi-current and shielding gas. Inkulu yangoku, okanye i-CO2 enkulu okanye i-O2 umxholo kwi-gas ekhuselayo, inkulu i-welding fume, kunye nomxholo we-ZnO kwi-fume nayo iyanda. Ubuninzi bomxholo we-ZnO unokufikelela malunga ne-70%. Ngaphantsi kweenkcukacha ezifanayo ze-welding, ubunzulu bokungena kwe-galvanized steel grating bukhulu kunobuchwephesha bensimbi.
Ixesha lokuposa: Aug-16-2024