Chitoliro chachitsulo chozungulira cholumikizidwa kuti chikhale ndi mphamvu komanso magwiridwe antchito abwino kwambiri (ASTM A252)

Chitoliro chachitsulo cholumikizidwa mozungulira kuti chikhale champhamvu komanso chogwira ntchito bwino. Chithunzi cha ASTM A252

Kufotokozera Kwachidule:

Chidule ichi ndi kupereka muyezo wopanga mapaipi kuti azitha kutumiza madzi, gasi ndi mafuta m'mafakitale amafuta ndi gasi wachilengedwe.

Pali magawo awiri a zinthu zomwe zagulitsidwa, PSL 1 ndi PSL 2, PSL 2 ili ndi zofunikira zofunika pa carbon equivalent, notch strength, maximum voeld strength ndi tensile strength.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Yambitsani:

Ponena za chitukuko cha zomangamanga, makina a mapaipi ndi gawo lofunika kwambiri lomwe limagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana. Kugwiritsa ntchito zipangizo ndi njira zoyenera pomanga mapaipi kumatsimikizira kulimba, kulimba komanso kudalirika, komansochitoliro chachitsulo chozungulira cholumikizidwa ndi ASTM A252ili patsogolo pa kupita patsogolo kwa ukadaulo. Mu blog iyi, tiwona bwino kwambiri makhalidwe abwino ndi ubwino wa mapaipi odabwitsa awa omwe akhala ofunikira kwambiri pa ntchito zomanga zamakono.

Kapangidwe ka Chitoliro cha SSAW

kalasi yachitsulo	mphamvu yocheperako yopezera phindu Mpa	mphamvu yochepa yolimba Mpa	Kutalikitsa Kochepa %
B	245	415	23
X42	290	415	23
X46	320	435	22
X52	360	460	21
X56	390	490	19
X60	415	520	18
X65	450	535	18
X70	485	570	17

Kapangidwe ka Mankhwala a Mapaipi a SSAW

kalasi yachitsulo	C	Mn	P	S	V+Nb+Ti
	% Yokwanira	% Yokwanira	% Yokwanira	% Yokwanira	% Yokwanira
B	0.26	1.2	0.03	0.03	0.15
X42	0.26	1.3	0.03	0.03	0.15
X46	0.26	1.4	0.03	0.03	0.15
X52	0.26	1.4	0.03	0.03	0.15
X56	0.26	1.4	0.03	0.03	0.15
X60	0.26	1.4	0.03	0.03	0.15
X65	0.26	1.45	0.03	0.03	0.15
X70	0.26	1.65	0.03	0.03	0.15

Kulekerera kwa Mapaipi a SSAW mu Geometry

Kulekerera kwa geometric
m'mimba mwake wakunja		Kukhuthala kwa khoma		kuwongoka		kupitirira muyeso		kulemera	Kutalika kwakukulu kwa mkanda wothira
D		T
≤1422mm	＞1422mm	＜15mm	≥15mm	chitoliro chomaliza 1.5m	utali wonse	thupi la chitoliro	mapeto a chitoliro		T≤13mm	T ＞13mm
± 0.5% ≤4mm	monga momwe anavomerezera	± 10%	± 1.5mm	3.2mm	0.2% L	0.020D	0.015D	'+10% -3.5%	3.5mm	4.8mm

Mayeso a Hydrostatic

kufotokozera kwa malonda1

Mphamvu ndi Kukhalitsa Kosayerekezeka:

ASTM A252chitoliro chachitsulo chozungulira cholumikizidwaAmapangidwa ndi chitsulo chapamwamba kwambiri chomwe chikugwirizana ndi miyezo ya ASTM A252. Muyezowu umatsimikizira kuti mapaipi ali olimba komanso okhazikika, zomwe zimapangitsa kuti akhale oyenera kugwiritsidwa ntchito m'njira zosiyanasiyana kuphatikizapo kutumiza mafuta ndi gasi, maziko omangira ndi zomangamanga zamadzi. Ma weld ozungulira amawonjezera mphamvu ndi kukana kwa mapaipi ku mphamvu zakunja, kuonetsetsa kuti amatha kupirira malo opanikizika kwambiri komanso nyengo yovuta.

Kuchita bwino kwambiri komanso kugwiritsa ntchito bwino ndalama:

Chimodzi mwa zabwino zazikulu za chitoliro chachitsulo cha ASTM A252 cholumikizidwa ndi spiral ndichakuti chimagwira ntchito bwino kwambiri pakuyika ndi kugwiritsa ntchito. Kapangidwe kake kozungulira ndi kosavuta kunyamula ndikugwira chifukwa cha kulemera kwake kopepuka poyerekeza ndi zida zina za chitoliro. Kuphatikiza apo, kusinthasintha kwa mapaipi awa kumathandiza kupindika, kuchepetsa zofunikira pa zolumikizira ndi zolumikizira. Izi sizimangopulumutsa nthawi yokha, komanso zimachepetsa kwambiri ndalama zoyikira, zomwe zimapangitsa kuti mtundu uwu wa mapaipi ukhale njira yotsika mtengo pamapulojekiti osiyanasiyana.

Kuwerengera Kutalika kwa Kuwotcherera kwa Chitoliro Chozungulira

Kulimbana ndi dzimbiri:

Kudzimbiritsa ndi vuto lalikulu m'mapaipi, makamaka m'mafakitale omwe amagwiritsa ntchito mankhwala ndi zinthu zowononga. Muyezo wa ASTM A252 umatsimikizira kuti mapaipi achitsulo olumikizidwa ndi spiral amakhala ndi kukana dzimbiri bwino. Mapaipi awa ali ndi zokutira zoteteza monga epoxy kapena zinc zomwe zimalepheretsa zinthu zowononga, kukulitsa nthawi yawo yogwirira ntchito ndikuchepetsa ndalama zokonzera. Izi ndizothandiza makamaka m'mafakitale apansi panthaka kapena m'mphepete mwa nyanja komwe mapaipi amakhala ndi nyengo yovuta.

Kunyamula katundu wambiri:

Chinthu china chofunika kwambiri cha chitoliro chachitsulo cholumikizidwa ndi ASTM A252 ndi mphamvu yake yabwino kwambiri yonyamula katundu. Ukadaulo wolumikizira wozungulira womwe umagwiritsidwa ntchito popanga zinthu umawonjezera mphamvu ya chitoliro ndi kuthekera kopirira katundu wolemera. Kaya amagwiritsidwa ntchito pomanga mlatho, maziko a zomangamanga kapena mapaipi apansi panthaka, mapaipi awa amapereka umphumphu wapamwamba kwambiri, kuchepetsa chiopsezo cha kulephera ndikuwonetsetsa kuti mapulojekiti osiyanasiyana a zomangamanga azikhala otetezeka kwa nthawi yayitali.

Kusunga chilengedwe moyenera:

Mu nthawi yomwe kuteteza chilengedwe kuli nkhani yaikulu padziko lonse lapansi, kusankha zipangizo zomangira zoyenera n'kofunika kwambiri. Chitoliro chachitsulo cholumikizidwa ndi ASTM A252 chikugwirizana ndi njira zomangira zokhazikika chifukwa cha kulimba kwake komanso kubwezeretsanso. Mapaipi amakhala ndi moyo wautali ndipo amatha kubwezeretsedwanso mosavuta kumapeto kwa moyo wawo, kuchepetsa kufunikira kochotsa zinthu zatsopano komanso kuchepetsa zinyalala ndi mpweya woipa.

Pomaliza:

Chitoliro chachitsulo cholumikizidwa ndi waya chozungulira ASTM A252 chasintha kwambiri makampani opanga mapaipi ndi mphamvu zake zapamwamba, kulimba komanso kugwiritsa ntchito bwino ndalama. Mapaipi awa amakwaniritsa kapena kupitirira miyezo yamakampani, zomwe zimapangitsa kuti akhale chisankho choyamba m'mafakitale osiyanasiyana. Mphamvu zake zabwino zonyamula katundu komanso kukana dzimbiri zimaonetsetsa kuti mapulojekiti omanga nyumba akukula bwino komanso zimathandiza kuti makampani apadziko lonse lapansi apite patsogolo. Pogwiritsa ntchito mapaipi awa, mapulojekiti omanga amatha kukonza bwino ntchito, kuchepetsa ndalama ndikuwonetsetsa kuti zinthu zikuyenda bwino kwa nthawi yayitali komanso kuti chilengedwe chikhale cholimba.

Yapitayi: Mapaipi achitsulo ozungulira opangidwa ndi waya opangidwa ndi madzi apakhomo

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