Spiral welded steel pipe

Umbhobho wentsimbi odityanisiweyo owaziwa ngokuba ngumbhobho wentsimbi ojikelezayo kunye nombhobho odityanisiweyo ojikelezayo, osebenzisa intsimbi ephantsi yekhabhoni okanye intsimbi ephantsi yealloyi ngokweengile yomgca ojikelezayo (obizwa ngokuba yi-engile yokubumba) eqengqeleke kwityhubhu, emva koko. ityhubhu edityanisiweyo kunye yenziwe, inokuba yimveliso yomcu emxinwa yombhobho omkhulu wentsimbi.Ikhoyili isetyenziswa ikakhulu kwimibhobho yeoli nerhasi, iinkcukacha zayo OD * ubukhulu bodonga.Icala lokuwelda kunye ne-double-sided welding welding spiral welded pipe kufuneka iqinisekise ukuba uvavanyo lwe-hydrostatic, ukuqina kokuqina kwe-weld kunye nokusebenza okugoba okubandayo kuyafuneka.

(1)umbhobho odityanisiweyo we-arc odityanisiweyo woxinzelelo loxinzelelo: ubukhulu becala usetyenziselwa ukuthutha ioyile, umbhobho werhasi yendalo;

(2) Ukuhanjiswa koxinzelelo lolwelo oluphezulu lwemibhobho yentsimbi edityanisiweyo ene-spiral seam: indlela yentsimbi edityanisiweyo yoxinzelelo oluphezulu yokuhambisa ulwelo olujikelezayo oluphezulu oludityanisiweyo lwentsimbi.Ikhono lombhobho wensimbi phantsi koxinzelelo, iplastiki enhle, ukukhululeka kwe-welding kunye nenkqubo yokubumba;

(3) Ukuhanjiswa koxinzelelo oluphantsi lwe-spiral entywiliselweyo i-arc edityanisiweyo yombhobho wentsimbi: ukuwelda kwe-arc enamacala amabini okuzenzekelayo okanye ukuwelda kwicala elinye kwinkqubo yomthetho yoxinzelelo oluphantsi olufana namanzi, igesi, umoya kunye nomphunga kunye nombhobho odityanisiweyo we-arc.

Ayinamthungointsimbiumbhobho

Iimpawu zemveliso yombhobho engenamthungo:
1. Uvavanyo lwenkqubo yetyhubhu engenamthungo: uvavanyo lwe-flattening, uvavanyo lwe-tensile, uvavanyo lwempembelelo, uvavanyo lwe-flaring, uvavanyo lobunzima, uvavanyo lwe-metallographic, uvavanyo lokugoba, uvavanyo olungenakonakala (kubandakanya i-eddy yangoku ye-X-ray kunye novavanyo lwe-ultrasonic).

2.Uhlalutyo lweekhemikhali zombhobho ongenamthungo: ukubunjwa kweekhemikhali zezinto zokuhlalutya iikhemikhali, ukubunjwa kweekhemikhali ukuhlangabezana neemfuno eziqhelekileyo.

I-3.Uxinzelelo lombhobho olungenamthungo kunye novavanyo lwe-hydrostatic luyityhubhu yoxinzelelo ngokungena kuvavanyo lwe-hydrostatic, olungagcini ixabiso loxinzelelo olumiselweyo olungekho ngaphantsi kwemizuzwana ye-5, ukuba ungavezi, uvavanyo oluqhelekileyo loxinzelelo lwe-hydraulic yi-2.45MPa yoxinzelelo Uvavanyo loxinzelelo P = 0.5MPAa.

I-4.Uvavanyo lwe-corrosion: umbhobho we-industrial-resistant steel corrosion ngokwemigaqo esemgangathweni okanye isivumelwano phakathi kokugqwala kovavanyo lokumelana nombhobho wensimbi, akukho ukubola kwe-intergranular.

Iimpawu zombhobho ongenamthungo
(1) i-diameter yangaphandle incinci.

(2) Ukuchaneka okuphezulu kunokwenza amanani amancinci ekrwada.

(3) umbhobho wentsimbi otsalwa ngokubanda ngokuchaneka okuphezulu kunye nomgangatho omhle womphezulu.

(4) indawo yombhobho wentsimbi inzima ngakumbi.

(5) umbhobho wentsimbi ukusebenza okuphezulu, isinyithi esixineneyo.