Ivalve yesango izinto ekrwada ipleyiti yentsimbi welding intonga

Ivalve yesango imathiriyeli ekrwada ipleyiti yentsimbi yokuwelda intonga Lo mgangatho wemigangatho yentsimbi yentsimbi yokuwelda intonga yenkcazo, imigangatho yobugcisa, iindlela zovavanyo kunye nemigangatho yovavanyo kunye nolunye ulwazi olunxulumeneyo. Lo mgangatho usebenza kwi-electrode yensimbi engenasici kwi-arc welding. I-electrode cladding metal enjalo kufuneka iqulethe ngaphezu kwe-10.50% yechromium kunye nentsimbi engaphezulu kunayo nayiphi na into. Ngokutsho kokwakhiwa kwentsimbi edibeneyo, uhlobo lwe-welding core, indawo ye-welding kunye nohlobo lwe-welding yangoku, intonga ye-welding ayifanele ibe neziphene ezifana nokuqhekeka, amaqamza, intsalela kunye nokuwa kuloo mgangatho weld weld, njengoko kubonisiwe kwiThebhile 1 kunye neThebhile. 2. 1. Ingcamango yomxholo kunye nensimu yesicelo Lo mgangatho oqhelekileyo we-stainless steel plate welding rod specication, imigangatho yobugcisa, iindlela zokuvavanya kunye nemigangatho yokuvavanya kunye nolunye ulwazi oluhambelanayo. Lo mgangatho usebenza kwi-electrode yensimbi engenasici kwi-arc welding. I-electrode cladding metal enjalo kufuneka iqulethe ngaphezu kwe-10.50% yechromium kunye nentsimbi engaphezulu kunayo nayiphi na into. 2 Imigangatho yeReference GB223.1 ~ 223.70 Iindlela zokuhlalutya iikhemikhali zentsimbi kunye ne-aluminium alloys GB1954 - Umlinganiselo womxholo we-microstructure kwi-welding ye-chrome-nickel low alloy steel GB2652 Indlela yokuvavanya i-Tensile ye-welding kunye ne-cladding metal GB 4334.5 Uvavanyo lwe-Stainless steel corrosion-test. indlela ye-sodium thiosulfate hydrochloride 3 Uhlobo kunye nokuhlelwa kwenkcazo 3.1 Uhlobo kunye neenkcukacha zentonga ye-welding ziya kwahlulwa ngokubunjwa kwentsimbi edibeneyo, uhlobo lwe-welding core, indawo ye-welding kunye nohlobo lwe-welding yangoku. 3.2 Imodeli Indlela yokulungiselela inkcazo Unobumba "E" ubonisa i-electrode, kwaye inombolo emva kwe "E" imele inombolo yokuhlelwa kwecandelo lentsimbi etyhidiweyo. Ukuba kukho imfuneko ekhethekileyo yecandelo, icandelo liboniswa ngesimboli sekhemikhali emva kwenani. Amanani amabini emva kwe "enye" ​​amele uhlobo lwe-electrode core, indawo ye-welding kunye nohlobo lwangoku lwe-welding. 3.3 Imizekelo yeenkcukacha zentonga yewelding kulo mgangatho ilandelayo: ④E502, E505, E7Cr, E5Mo, E9Mo uhlobo lwe-electrode iya kufakwa kumgangatho olandelayo olungisiweyo we-GB5118 "high alloy Steel electrode", kodwa icinywe kulo mgangatho. ⑤ Isimamva esinye XX. Ibonisa enye i-15, enye i-16, enye i-17, enye i-25 okanye enye i-26. Qaphela: I-welding ye-full-position ayikhuthazwa kwii-electrode ezinobubanzi obulingana nobukhulu kuno-5.0mm. 4 ImiGangatho yoBugcisa 4.1 Iinkcukacha 4.1.1 Iinkcukacha ze-electrode ziya kuhlangabezana neemfuno ezikwiThebhile 3. 4.1.1.1 Vumela ukuveliswa kwe-electrode eyi-3.0mm endaweni ye-electrode eyi-3.2 kunye ne-5.8mm yokuvula i-electrode endaweni ye-electrode eyi-6.0rnm. 4.1.1.2 Iintsimbi zokuwelda zezinye iinkcukacha zivumelekile ukuba zinikezelwe ngokwesivumelwano phakathi kweQela A kunye neQela B. 4.1.2 Ubude besiphelo sokubamba i-electrode buya kuhlangabezana neemfuno ezikwiTheyibhile 4. 4.2 I-Welding Core 4.2.1 Kufuneka kungabikho iintanda, amaqamza, intsalela kunye nokuwa kwi-welding core ye-electrode eyenzakalisa umgangatho we-weld. 4.2.2 I-welding core kwi-arc yokuqala ekupheleni kwe-electrode kufuneka ijikelezwe, kwaye i-welding core port kufuneka ibonakaliswe ukuze kuqinisekiswe ukuba i-arc iqala ngokufanelekileyo. Ingundoqo eveziweyo ye-electrode kufuneka ihlangabezane nezi mfuno zilandelayo: a. Ububanzi bangaphandle be-electrode abuyi kudlula i-2.0 mm, kwaye ubude be-core eveziweyo abuyi kudlula i-1.6mm b. Idayamitha ye-electrode yi-2.5mm kunye ne-3.2mm, kwaye ubude be-core eveziweyo akufanele ibe nkulu kune-2.0mm kunye nobude be-Angle c. I-diameter ye-electrode idlula i-3.2mm, kwaye ubude be-core eveziweyo kunye nobude be-Angle akufanele ibe mkhulu kune-3.2mm d. Zonke iintlobo ze-electrode aperture ecaleni kwe-Angle yesangqa akufanele ibe ngaphezu kwesiqingatha sesangqa. 4.2.3 Ingundoqo ye-electrode iya kuba namandla okwaneleyo okuthintela ukuphepha ukutshatyalaliswa kwizothutho eziqhelekileyo okanye ukusetyenziswa. 4.2.4 I-electrode eccentricity iya kuhlangabezana nezi mfuno zilandelayo: a. I-diameter yangaphandle ye-electrode ayiyi kudlula i-2.5rnm, kwaye i-eccentricity ayiyi kudlula i-7%; b. Ububanzi be-3.2mm kunye ne-4.0mm electrode, i-eccentricity akufanele ibe ngaphezu kwe-5%; c. I-aperture ye-electrode ayiyi kuba ngaphantsi kwe-5.0mm, kwaye i-eccentricity ayiyi kuba ngaphezu kwe-4%. Indlela yokubala ye-eccentricity iboniswa ngolu hlobo lulandelayo (Umfanekiso 1). Kwifomula :T1 -- intonga yokuwelda icandelo lomnqamlezo lokwaleka umaleko ** enkulu etyebileyo etyebileyo ye weld core aperture T2 -- encinci ebhityileyo kunye nengqindilili ye weld core aperture yecandelo elinqamlezayo epidermal umaleko 4.3 T-joint weld 4.3.1 Umphezulu weld uya zihlolwe ngamehlo omntu ngaphandle kweentanda, amanxeba e-welding, ii-burls ze-welding kunye nemingxuma yomoya engaphezulu. 4.3.2 Icandelo lomnqamlezo weweld liya kuhlangabezana nezi mfuno zilandelayo emva kokukhazimliswa kunye nokuchetywa: a, icala ngalinye leweld liya kudityaniswa okanye lidlule kwisiphambuka seepleyiti ezimbini; b. Ubungakanani beenyawo ze-weld yecala ngalinye kunye nokwahlukana phakathi kobude beemingxuma ezimbini zokuthunga kufuneka zihambelane neenkcukacha kwiThebhile 5 (njengoko kubonisiwe kuMfanekiso 2). c. Ubume beprofayile yeweld nganye iya kuhlangabezana neemfuno ezikuMfanekiso 3. d. Khangela ngamehlo omntu, akufuneki kubekho iintanda kwi-cross section ye-weld. e. Akukho zintsimbi zokuwelda okanye imingxuma yomoya. 4.4 Ukwakheka kwesinyithi esinyibilikisiweyo Ukwakheka kweekhemikhali zecautery metal kuya kuhambelana neemfuno zeTheyibhuli 1. 4.5 Iimpawu ezibonakalayo zolugqubuthelo lwesinyithi Iziphumo zovavanyo lwentsimbi edityanisiweyo kufuneka zihambelane neemfuno ezikwiTheyibhile 6. iyasonjululwa, kulandele ukupholisa umoya kwiqondo lobushushu begumbi. f. Isampuli ifakwe kwi-740 ~ 760 ℃ ye-4 h, ilandelwa kukupholisa umoya. g. Isampuli yafakwa kwi-730 ~ 750 ℃ ​​kwi-4 h, ilandelwa kukupholisa umoya. 4.6 Ukumelana nokutyiwa kwentsimbi edityanisiweyo Uvavanyo lokumelana nokubola kwentsimbi edityanisiweyo iya kuchazwa ngesivumelwano samaqela omabini. 4.7 Isiqulatho sobume bemetallographic sesinyithi esidityanisiweyo Isiqulatho seferritiki sesinyithi esidityanisiweyo siya kuchazwa kwisivumelwano phakathi kweQela A kunye neQela B. I-electrode yepleyiti yensimbi engenastainless ukwenzela imathiriyeli ekrwada yevalvu yesango (2) Uvavanyo lomgangatho we-electrode yohlobo ngalunye kunye neenkcukacha ziya ukuhambelana neemfuno zeThebhile 7. Ngaphambi kovavanyo, i-electrode kufuneka ibhakwe ngokuhambelana neqondo lokushisa lokumisa elenziwe ngumenzi. Ifanele unxibelelwano AC okanye DC welding electrode ulinge ukukhetha unxibelelwano AC. Izinto ezisisiseko ezisetyenziselwa uhlalutyo lokubunjwa kweekhemikhali zingaba yi-carbon steel, i-alloy high steel okanye i-stainless steel plate. Umxholo wekhabhoni wensimbi edibeneyo awuyi kudlula i-0.04% ye-electrode kunye nesiseko sezinto ezisetyenziselwa uhlalutyo lwekhemikhali ye-electrode ye-E63O inomxholo ophezulu kakhulu wekhabhoni we-0.03%. Ngokuhambelana nemimiselo yeSiqendu 5.4.3, izinto ezisisiseko ezinomthamo ophezulu kakhulu wekhabhoni we-0.25% nazo zingasetyenziswa. Isiseko sesinyithi sohlalutyo lwemichiza ye-electrode iphezulu kakhulu kwikhabhoni ye-0.25% ... Ukudibanisa: intonga yentsimbi yentsimbi yentsimbi ye-valve yesango impahla eluhlaza (1) 5 Indlela yokuvavanya 5.1 Uvavanyo lomgangatho we-electrode yohlobo ngalunye kunye neenkcukacha ziya ukuthobela iimfuno kwiThebhile 7. Ngaphambi kovavanyo, i-electrode kufuneka ibhakwe ngokuhambelana neqondo lokushisa lokumisa elenziwe ngumenzi. Ifanele unxibelelwano AC okanye DC welding electrode ulinge ukukhetha unxibelelwano AC. Itheyibhile 7 Imimiselo yovavanyo 5.2 imathiriyeli esisiseko yovavanyo 5.2.1 Isiseko sovavanyo lwe-T-joint weld lucaciswe ngolu hlobo lulandelayo: Uhlobo lwe-Austenitic kunye ne-E630 uhlobo lwentonga ye-welding kufuneka lusebenzise ipleyiti yensimbi engenasici enokwakheka kwentsimbi edibeneyo, okanye i-0Cr19Ni9 okanye i-OCr19Ni9Ti ipleyiti eshinyeneyo. B.410,E410IiNMo E430 uhlobo electrode iya kuba OCr13, okanye 1Cr13 uhlobo ipleyiti stainless steel. c. Ezinye iintlobo zeentsimbi ze-welding kufuneka zenziwe kwiiplate zetsimbi ezichasene nokushisa okanye i-carbon steel okanye i-low-alloy steel plates kunye nokubunjwa okufanayo kunye nentsimbi edibeneyo. 5.2.2 Izinto ezisisiseko ezisetyenziselwa uhlalutyo lweekhemikhali zingaba yi-carbon steel, i-alloy steel high okanye i-stainless steel plate. Umxholo wekhabhoni wensimbi edibeneyo awuyi kudlula i-0.04% ye-electrode kunye nesiseko sezinto ezisetyenziselwa uhlalutyo lwemichiza ye-electrode ye-E63O inomxholo wekhabhoni ophezulu kakhulu we-0.03%. Ngokuhambelana nemimiselo yeSiqendu 5.4.3, izinto ezisisiseko ezinomthamo ophezulu kakhulu wekhabhoni we-0.25% nazo zingasetyenziswa. Zonke ezinye iimodeli kunye neenkcukacha zohlalutyo lwekhemikhali ye-electrode kunye nekhabhoni ephezulu kakhulu ye-0.25% yesiseko sesinyithi