Ubwino Wogwiritsa Ntchito Mapaipi a Chitsulo Chosenda ndi Spirally ASTM A252

Ubwino Wogwiritsa Ntchito Mapaipi a Chitsulo Chosemedwa ndi Spirally ASTM A252 Chithunzi Chodziwika

Kufotokozera Kwachidule:

Pomanga mapaipi a mafakitale osiyanasiyana, kusankha zinthu n'kofunika kwambiri. Mapaipi achitsulo olumikizidwa mozungulira, makamaka omwe amapangidwa motsatira miyezo ya ASTM A252, akhala chisankho chodziwika bwino pa ntchito zambiri chifukwa cha zabwino zake zambiri.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Chimodzi mwa ubwino waukulu wogwiritsa ntchito chitoliro chachitsulo cholumikizidwa ndi ASTM A252 ndi mphamvu yake yayikulu komanso kulimba kwake. Mapaipi awa amatha kupirira kupsinjika kwakukulu ndi katundu wolemera, zomwe zimapangitsa kuti akhale abwino kwambiri potumiza mafuta ndi gasi, mayendedwe a m'madzi komanso ntchito zomangamanga. Njira yolumikizira yozungulira yomwe imagwiritsidwa ntchito popanga imatsimikizira mgwirizano wolimba komanso wofanana, zomwe zimathandiza kuti chitolirocho chikhale cholimba komanso cholimba.

Katundu wa Makina

	Giredi 1	Giredi 2	Giredi 3
Mphamvu ya Yield Point kapena yield, min, Mpa(PSI)	205 (30 000)	240 (35 000)	310 (45 000)
Mphamvu yokoka, mphindi, Mpa(PSI)	345 (50 000)	415 (60 000)	455 (66 0000)

Kusanthula Zamalonda

Chitsulocho sichiyenera kukhala ndi phosphorous yoposa 0.050%.

Kusintha Kovomerezeka kwa Kulemera ndi Miyeso

Kutalika kulikonse kwa mulu wa chitoliro kuyenera kuyezedwa padera ndipo kulemera kwake sikuyenera kupitirira 15% kapena 5% pansi pa kulemera kwake kongopeka, kuwerengedwa pogwiritsa ntchito kutalika kwake ndi kulemera kwake pa unit level.

M'mimba mwake wakunja suyenera kusiyana kuposa ± 1% kuchokera m'mimba mwake wakunja wotchulidwa

Kukhuthala kwa khoma nthawi iliyonse sikuyenera kupitirira 12.5% pansi pa makulidwe a khoma omwe atchulidwa

Utali

Kutalika kwapadera: 16 mpaka 25ft (4.88 mpaka 7.62m)

Kutalika kawiri mwachisawawa: kuposa 25ft mpaka 35ft (7.62 mpaka 10.67m)

Kutalika kofanana: kusiyanasiyana kovomerezeka ± 1in

Kuwonjezera pa mphamvu,mapaipi achitsulo olumikizidwa mozungulira ASTM A252imapereka kukana dzimbiri bwino kwambiri. Izi ndizofunikira kwambiri makamaka pa mapaipi omwe ali ndi nyengo yovuta kapena zinthu zowononga. Chophimba choteteza pa mapaipi awa chimawonjezera kukana kwawo dzimbiri, kuonetsetsa kuti nthawi yayitali yogwirira ntchito komanso ndalama zochepa zokonzera.

Kuphatikiza apo, mapaipi achitsulo opangidwa ndi chitsulo otchedwa ASTM A252 amadziwika kuti ndi osinthasintha komanso osavuta kuwayika. Kapangidwe kawo kosinthasintha kakhoza kusinthidwa mosavuta kuti kakwaniritse zofunikira zinazake za polojekiti, pomwe kupepuka kwawo kumapangitsa kuti kugwira ntchito ndi kunyamula zikhale zosavuta. Izi zimapangitsa kuti zikhale zosankhika zotsika mtengo pa ntchito zosiyanasiyana, chifukwa zimatha kuyikidwa mwachangu komanso moyenera, zomwe zimachepetsa nthawi yogwira ntchito komanso yomanga.

Ubwino wina wogwiritsa ntchito chitoliro chachitsulo cha ASTM A252 cholumikizidwa ndi spiral welded ndi kukhalitsa kwake kwachilengedwe. Chopangidwa ndi zinthu zobwezerezedwanso, mapaipi awa amatha kugwiritsidwanso ntchito kapena kugwiritsidwanso ntchito kumapeto kwa moyo wawo wothandiza, zomwe zimachepetsa kuwonongeka konse kwa chilengedwe chifukwa cha kumanga ndi kukonza mapaipi. Kuphatikiza apo, nthawi yayitali yogwira ntchito komanso zosowa zochepa zosamalira zimathandiza kuti pakhale zomangamanga zokhazikika komanso zosawononga chilengedwe.

Pomaliza, mapaipi achitsulo opangidwa ndi ASTM A252 ali ndi zabwino zambiri zomwe zimapangitsa kuti ikhale chisankho choyamba pakupanga mapaipi. Mphamvu zawo zapamwamba, kulimba, kukana dzimbiri, kusinthasintha komanso kukhazikika kwa chilengedwe zimapangitsa kuti akhale oyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana. Posankha mapaipi awa, opanga mapulojekitiwa akhoza kutsimikizira kuti pali mapaipi odalirika komanso okhalitsa omwe amakwaniritsa miyezo yapamwamba kwambiri komanso magwiridwe antchito.