Ukomelela kombhobho odityanisiweyo ophindwe kabini kwizicelo zoShishino

Amandla oMbhobho odityanisiweyo ophindwe kabini kwiMisebenzi yoShishino eFakelwe umfanekiso

Inkcazelo emfutshane:

Ehlabathini lemibhobho yoshishino, ukhetho lwezinto eziphathekayo kunye neendlela zokwakha zinokuba nefuthe elikhulu ekusebenzeni ngokubanzi kunye nokuphila ixesha elide kwenkqubo. Enye indlela ethandwa ngamandla kunye nokuqina kwayo kukusebenzisa umbhobho odityanisiweyo kabini. Le mibhobho yenzelwe ukujamelana noxinzelelo oluphezulu, amaqondo obushushu agqithisileyo kunye neemeko ezinzima zokusingqongileyo, okwenza kube lula kwiintlobo ezahlukeneyo zezicelo zoshishino.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Imibhobho edityanisiweyo kabinizakhiwe nge-welds ezimbini ezizimeleyo ukwenza uxhumano oluqinileyo noluthembekileyo phakathi kwamacandelo ombhobho. Le nkqubo ye-welding ephindwe kabini iqinisekisa ukuba umbhobho unokumelana noxinzelelo kunye neengxaki ezinokudibana nazo ngexesha lokusebenza, okwenza kube yinto ethembekileyo yokukhetha izicelo ezibalulekileyo apho ukungaphumeleli kungenakukhethwa.

Enye yeenzuzo eziphambili zemibhobho edibeneyo ephindwe kabini kukukwazi ukusingatha iimeko ezinoxinzelelo oluphezulu. Inkqubo ye-welding ephindwe kabini idala uxhulumaniso olungenamthungo kunye noluqinileyo phakathi kwamacandelo ombhobho, ukuqinisekisa ukuba banokumelana noxinzelelo lwangaphakathi ngaphandle komngcipheko wokuvuza okanye ukungaphumeleli. Oku kubenza balungele izicelo ezifana nemibhobho yeoli kunye negesi, apho ukunyaniseka kwenkqubo yombhobho kubaluleke kakhulu kukhuseleko kunye nokusebenza kakuhle.

Itheyibhile 2 IiPropati eziPhambili zeMzimba kunye neMichiza yeMibhobho yeNsimbi (GB/T3091-2008, GB/T9711-2011 kunye ne-API Spec 5L)
Umgangatho	IBanga leNsimbi	Amalungu eMichiza (%)						Ipropati ye-Tensile						Charpy(V notch)Uvavanyo lweMpembelelo
		c	Mn	p	s	Si	Okunye	Isivuno Amandla (Mpa)		Amandla Okuqina (Mpa)		(L0=5.65 √ S0)(umzuzu wokuTlula umlinganiselo (%)
		max	max	max	max	max	Okunye	imiz	max	imiz	max	D ≤ 168.33mm	D ＞ 168.3mm
I-GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Ukongeza i-NbVTi ngokuhambelana ne-GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31
	Q235A	≤ 0.22	0.30 ＜ 0.65	0.045	0.050	0.035		235		375		15	>26
	Q235B	≤ 0.20	0.30 ≤ 1.80	0.045	0.045	0.035		235		375		15	>26
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295		390		13	>23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		390		13	>23
	Q345A	0.20	1.00-1.60	0.045	0.045	0.55		345		510		13	>21
	Q345B	0.20	1.00-1.60	0.045	0.040	0.55		345		510		13	>21
GB/T9711-2011 (PSL1)	L175	0.21	0.60	0.030	0.030		Ngokuzithandela ukongeza enye yezinto ze-NbVTi okanye nayiphi na indibaniselwano yazo	175		310		27		Inye okanye ezimbini zesalathiso sokuqina samandla empembelelo kunye nendawo yokucheba inokukhethwa. Kwi-L555, bona umgangatho.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5L (PSL 1)	A25	0.21	0.60	0.030	0.030		Kwibakala B intsimbi,Nb+V ≤ 0.03%;yentsimbi ≥ ibakala B,ukongeza iNb okanye V okanye indibaniselwano yabo, kunye Nb+V+Ti ≤ 0.15%	172		310		(L0=50.8mm) iya kubalwa ngokwale fomyula ilandelayo:e=1944·A0 .2/U0 .0 A: Ummandla wesampulu kwi-mm2 U: Ubuncinane obukhankanyiweyo bokuqina bokuqina kwi-Mpa		Akukho nanye okanye nayiphi na okanye zombini amandla empembelelo kunye nendawo yokucheba efunekayo njengenqobo yokugweba yokuqina.
	A	0.22	0.90	0.030	0.030			207		331
	B	0.26	1.20	0.030	0.030			241		414
	X42	0.26	1.30	0.030	0.030			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Ukongeza kumandla ayo, umbhobho odityanisiweyo ophindwe kabini uyakwazi ukumelana nobushushu obugqithisileyo, okwenza ukuba ulungele iinkqubo ezahlukeneyo zoshishino. Nokuba zithutha ulwelo olushushu okanye iigesi, okanye zisebenza kwiindawo ezinobushushu obuguquguqukayo, umbhobho odityanisiweyo ophindwe kabini ugcina imfezeko yesakhiwo kunye nokusebenza, ukuqinisekisa ukusebenza okuthembekileyo phantsi kwezona meko zinzima.

Ukongeza, ukuqina kombhobho odityanisiweyo ophindwe kabini kwenza kube lukhetho olungabizi kakhulu kwizicelo zamashishini. Ukukwazi kwabo ukumelana nokunxiba, ukubola kunye nezinye iindlela zokuthotywa kuthetha ukuba zifuna ukugcinwa okuncinci kunye nokutshintshwa, ukunciphisa iindleko zokusebenza ngokubanzi kunye nexesha lokunciphisa.

Ngokubanzi, ukusetyenziswa kombhobho odibeneyo ophindwe kabini kunika uluhlu lweenzuzo zezicelo zoshishino, kubandakanywa amandla, ukuqina kunye nokuthembeka. Ukukwazi kwabo ukujongana noxinzelelo oluphezulu, ukushisa okugqithisileyo kunye neemeko ezinzima zokusingqongileyo zenza ukuba zilungele uluhlu olubanzi lwamashishini ukusuka kwioli kunye negesi ukuya kwimichiza. Ngokusebenza kwayo okungqiniweyo kunye nerekhodi yobomi benkonzo, umbhobho odityanisiweyo ophindwe kabini uyinto exabisekileyo kuyo nayiphi na inkqubo yemibhobho yoshishino.