1. Imetallography
I-Metallography yenye yeendlela eziphambili zokwahlula imibhobho yentsimbi edityanisiweyoimibhobho yentsimbi engenamthungo. I-high-frequency resistant welded welded imibhobho ayifaki izinto zokudibanisa, ngoko ke i-weld seam kumbhobho wentsimbi edibeneyo iyancipha kakhulu. Ukuba indlela yokugaya i-rough kunye ne-corrosion isetyenzisiweyo, i-weld seam ayinakubonwa ngokucacileyo. Emva kokuba i-high-frequency resistance ene-weld steel pipe idityanisiwe kwaye ingakhange iqhutywe kunyango lobushushu, isakhiwo se-weld siya kuba sahluke kakhulu kwizinto zomzali wombhobho wensimbi. Ngeli xesha, indlela ye-metallographic ingasetyenziselwa ukwahlula imibhobho yentsimbi edityanisiweyo kwimibhobho yentsimbi engenamthungo. Kwinkqubo yokwahlula iipayipi ezimbini zetsimbi, kuyimfuneko ukusika isampuli encinci kunye nobude kunye nobubanzi be-40mm kwindawo yokuthungatha, ukwenza ukugaya ngokukrakra, ukugaya okulungileyo kunye nokupholisa, kwaye emva koko ukhangele isakhiwo phantsi kwe-microscope ye-metallographic. Xa i-ferrite kunye ne-widmanstatten, izinto zomzali kunye nesakhiwo sommandla we-weld zibonwa, umbhobho wensimbi odibeneyo kunye nombhobho wensimbi ongenamthungo unokwahlulwa ngokuchanekileyo.
2. Indlela yokubola
Kwinkqubo yokusebenzisa indlela ye-corrosion ukwahlula imibhobho yentsimbi edityanisiweyo kunye nemibhobho yentsimbi engenamthungo, i-weld yombhobho wentsimbi odityanisiweyo kufuneka ipholiswe. Emva kokugqitywa kokupholisha, iimpawu zokupholisa kufuneka zibonwe. Emva koko, ubuso bokugqibela bucocwe nge-sandpaper kwi-weld, kwaye ubuso bokugqibela buphathwa nge-5% yesisombululo se-nitric acid alcohol. Ukuba i-weld ebonakalayo ibonakala, inobungqina bokuba umbhobho wensimbi ngumbhobho wensimbi odibeneyo. Akukho mahluko ucacileyo ebusweni bokugqibela bombhobho wentsimbi ongenamthungo emva kokubola.
3. Ukwahlula imibhobho yentsimbi edibeneyo kunye nemibhobho yensimbi engenamthungo ngokwenkqubo
Kwinkqubo yokwahlulaimibhobho yentsimbi edityanisiweyokunye nemibhobho yentsimbi engenamthungo ngokwenkqubo, yonke imibhobho yentsimbi edityanisiweyo idityaniswe ngokweenkqubo ezifana nokuqengqeleka okubandayo kunye ne-extrusion. Ukongeza, xa i-high-frequency, i-low-frequency arc welding pipes kunye nemibhobho yokumelana ne-welding isetyenziselwa ukuwelda imibhobho yentsimbi, i-spiral pipe welding kunye ne-straight seam pipe welding iya kwenziwa, eya kwenza imibhobho yentsimbi engqukuva, imibhobho yentsimbi yesikwere, intsimbi embhoxo. imibhobho, imibhobho yentsimbi engunxantathu, imibhobho yentsimbi enamacala amathandathu, imibhobho yentsimbi ebunayo, imibhobho yentsimbi enonxantathu, kwanemibhobho yentsimbi entsonkothileyo ngakumbi. Ngamafutshane, iinkqubo ezahlukeneyo ziya kwenza imibhobho yentsimbi yeemilo ezahlukeneyo, ukwenzela ukuba imibhobho yentsimbi edityanisiweyo kunye nemibhobho yensimbi engenamthungo ikwazi ukwahlula ngokucacileyo. Nangona kunjalo, kwinkqubo yokwahlula imibhobho yentsimbi engenamthungo ngokwenkqubo, yahlulwa ikakhulu ngokwendlela yokuqengqeleka eshushu kunye nebandayo, kunye nemibhobho yentsimbi engenamthungo nayo ineendlela ezimbini eziphambili, ezizezi, imibhobho yentsimbi engenamthungo eshushu-eshushu kunye nokubanda- imibhobho yentsimbi esongiweyo. Imibhobho yentsimbi engenamthungo eshushu eqengqelekayo yenziwa ngokugqobhoza, ukuqengqeleka kunye nezinye iinkqubo, ngakumbi imibhobho yentsimbi enobubanzi obukhulu kunye nengqindilili engenamthungo iyadityaniswa yile nkqubo; imibhobho epholileyo yenziwa ngumzobo obandayo wemibhobho, kwaye amandla ezinto eziphathekayo aphantsi, kodwa indawo yayo yangaphandle nangaphakathi igudile.
Ixesha lokuposa: May-17-2024