Umbhobho wensimbi ongenamthungo kwiibhoyila luhlobo lwebhoyila yombhobho kwaye ungowodidi lwemibhobho yentsimbi engenamthungo.Indlela yokuvelisa iyafana neyemibhobho yensimbi engenamthungo, kodwa kukho iimfuno eziqinileyo zohlobo lwentsimbi esetyenziselwa ukuvelisa iipayipi zetsimbi.Imibhobho yensimbi engenamthungo yeebhoyili isoloko isetyenziswa phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, imibhobho iya ku-oxidize kwaye idle.Imibhobho yensimbi iyadingeka ukuba ibe namandla aphezulu, ukuchasana ne-oxidation kunye ne-corrosion, kunye nokuzinza okuhle kwesakhiwo.Imibhobho yensimbi engenamthungo yeebhoyili isetyenziselwa ikakhulu ukwenza imibhobho yoxinzelelo oluphezulu, imibhobho ephambili yomphunga, njl.

Iityhubhu zebhoyila zoxinzelelo oluphantsi naphakathiGB3087 kunyekwibhoyila iityhubhu ezingenamthungoI-GB5310 zizinto ezikumgangatho ophezulu ezisetyenziselwa ukwenza imibhobho yomphunga eshushu kakhulu, imibhobho yamanzi abilayo kwiibhoyila ezinoxinzelelo oluphantsi lwezakhiwo ezahlukahlukeneyo, imibhobho yomphunga eshushu kakhulu yeebhoyila zelocomotive, imibhobho emikhulu yomsi, imibhobho emincinci yomsi kunye nemibhobho yezitena zearch.Ikhabhoni yolwakhiwo lwentsimbi yentsimbi eshushu-isolwe ngokubanda (eqengqelekayo) imibhobho yentsimbi engenamthungo.Umbhobho wentsimbi yolwakhiwo engenamthungo (GB/T8162)ngumbhobho wentsimbi ongenamthungo osetyenziselwa izakhiwo eziqhelekileyo kunye nezakhiwo zoomatshini.Imibhobho yebhoyila yoxinzelelo oluphezulu I-ASME SA-106 (GR.B, GR.C)kwayeI-ASTM A210zisetyenziselwa imibhobho yebhoyila kunye nemibhobho yebhoyila.Iityhubhu, kubandakanya i-vault yokuphela kokhuseleko kunye neetyhubhu ze-strut kunye nobukhulu obuncinci bodonga olungenamthungo phakathi kweetyhubhu zentsimbi zekhabhoni zeetyhubhu eziphezulu,I-ASME SA-213, i-ferritic engenamthungo kunye ne-austenitic yeebhoyila, ii-superheaters kunye nokutshintsha ubushushu I-alloy steel pipe,I-ASTM A335 P5, I-P9, i-P11, i-P12, i-P22, i-P9, i-P91, i-P92, i-alloy ye-ferritic i-alloy engenamthungo yombhobho wokushisa okuphezulu.

Iinkcukacha kunye nomgangatho wokubonakala: I-GB5310-2017 "I-Pipe yensimbi engenamthungo kwiiBoilers eziPhezulu zoxinzelelo" Ububanzi obungaphandle beepayipi ezishushu zishushu zi-22 ukuya kwi-530mm, kwaye ububanzi bodonga buvela kwi-20 ukuya kwi-70mm.Ububanzi bangaphandle bemibhobho ebandayo (i-cold-rolled) isuka kwi-10 ukuya kwi-108mm, kunye nobukhulu bodonga ukusuka kwi-2.0 ukuya kwi-13.0mm.

Iityhubhu ezingenamthungo kwiibhoyili zamkela amabakala entsimbi

(1) Amanqanaba aphezulu e-carbon structural steel afaka i-20G, i-20MnG, kunye ne-25MnG.

(2) I-alloy structural steel amabanga15MoG, 20MoG, 12CrMoG,15CrMoG, 12Cr2MoG, 12CrMoVG, njl.