Kodi mungamvetse bwanji mipope yamitundu itatu ndi mipope isanu yodziwika bwino yomwe imatchulidwa m'mapaipi opanda zitsulo? Kodi amawoneka bwanji?

Pogawira msika, nthawi zambiri timakumana ndi mapaipi amitundu yambiri monga "mapaipi amitundu itatu" ndi "mapaipi apakati asanu".
Komabe, abwenzi ambiri sadziwa mokwanira za mmene mipope mipikisano muyezo, ndipo samvetsa. Ndikukhulupirira kuti nkhaniyi ikhoza kukupatsani kudzoza kotero kuti musakhalenso ndi kukayikira pakugula ndikugwiritsa ntchito motsatira.

mbendera3 (2)

01-Kupanga mapaipi amitundu yambiri monga "mapaipi amitundu itatu" ndi "mapaipi apakati asanu" ndi zifukwa ndi kufunikira kwa kukhalapo kwawo.

M'masiku oyambirira, mapaipi amitundu yambiri adalimbikitsidwa kapena kufunidwa ndi gulu la polojekiti, kuti gulu la polojekiti ligule ndi kuwagwiritsa ntchito mogwirizana, kupulumutsa nthawi ndi mavuto.
Pachiyambi, mapaipi amitundu yambiri amakhalapo molingana ndi miyezo yaku America ndi miyezo yaku America, ndipo njira yayikulu yogwiritsira ntchito inali kutumiza kunja, makamaka yokhala ndi "mapaipi amitundu itatu" ndi "mapaipi apakati asanu". Pambuyo pake, chifukwa mapangidwe ambiri a ntchito zapakhomo za petrochemical adakhazikitsidwa molingana ndi miyezo yaku America, mapaipi amitundu yambiri adayambitsidwa pang'onopang'ono pakugula ndi kugwiritsa ntchito ntchito zapakhomo za petrochemical ndi mankhwala.
Pamene nthawi ikupita ndipo msika ukukula m'njira yoyeretsedwa, gulu la mapaipi amitundu yambiri pamsika tsopano ndi akatswiri komanso osiyanasiyana.

Pakalipano, kuwonjezera pa "mapaipi atatu" ndi "mapaipi apakati asanu", palinso "mapaipi amtundu wawiri" ndi "mapaipi anayi" pamsika. Komanso, sizimangokhala pakukhala limodzi kwa miyezo ya ku America ndi miyezo ya ku America, komanso pakati pa miyezo ya dziko ndi mayiko, komanso pakati pa miyezo ya dziko ndi America.

Mapaipi amitundu yambiri pamsika sakhalanso olamulidwa ndi ogwiritsa ntchito polojekiti, koma adayambitsidwa ndi ogulitsa (mafakitale, ogulitsa msika).
Zifukwa zomwe mapaipi amitundu yambiri alipo:
Choyamba, kunena kwenikweni, ndi zotheka. Zomwe zimatchedwa mapaipi amitundu yambiri, monga momwe dzinalo likusonyezera: chitoliro chomwecho chachitsulo chimakumana ndi miyezo yopitilira iwiri ndi zida. Itha kukumana pano ndi apo, ndipo zinthu zamakina, zida zamakina, ndi zofunikira zaukadaulo waukadaulo wamiyezo ingapo zitha kukwaniritsidwa nthawi imodzi.
Kumayambiriro koyambirira: mapaipi amitundu yambiri amalimbikitsidwa makamaka ndi gulu la polojekiti kuti athe kupeza zinthu zapakati, kupulumutsa nthawi, khama ndi mavuto;
Pamene msika ukusintha pang'onopang'ono kuchokera ku msika wogulitsa kupita ku msika wa wogula, ubwino wa "kupulumutsa nthawi, khama ndi mavuto" amasamutsidwa kwa ogulitsa msika, ndi phindu lalikulu lachuma. Mwachitsanzo: ngati ndalama zomwezo zimagwiritsidwa ntchito popanga / kusunga chinthu chimodzi chokhazikika, tsopano chikhoza kutulutsa / katundu awiri, atatu, anayi ... Zogulitsa zosungirako zimakhala zowonjezereka, ndipo zimatha kupereka ntchito zapanthawi yake pazofuna zomwe zakhudzidwa, zenizeni komanso zosiyanasiyana za ogula.

Chithunzi cha A106A53AAPI5L

02-Kusiyanasiyana ndi kutsimikizika kwamagulu amitundu yambiri yamachubu omwe amapezeka pamsika

Pali mitundu iwiri ya mayankho pagulu la machubu amitundu yambiri:
1. Malinga ndi miyezo yofananira yomwe ikuphatikizidwa: Pakalipano, pali machubu amitundu yambiri pakati pa miyezo ya ku America, machubu amitundu yambiri pakati pa miyezo ya dziko, ndi machubu amitundu yambiri pakati pa miyezo ya America ndi mayiko. Zikuyembekezeka kuti padzakhala machubu amitundu yambiri pakati pa miyezo ya dziko, miyezo ya ku America, ndi miyezo ya ku Europe m'tsogolomu;
2. Malingana ndi chiwerengero cha miyeso yomwe ikuphatikizidwa: Pali machubu awiri, machubu atatu, machubu anayi, machubu asanu ndi mitundu ina;
Oyimilira akulu: Machubu amitundu iwiri:Chithunzi cha ASTM A106B, Chithunzi cha ASTM A53B; ASME SA106 B, ASTM A53B; ASME SA333 Gr.6, ASTM A333 Gr.6ASME SA106 B (C), ASTM A106B (C),GB/T 6479Q345E, Q355E, GB/T 18984 16MnDG;API 5L B(zogwirizana ndi zitsulo zitsulo mu muyezo), GB/T 9711 L245 (molingana zitsulo giredi mu muyezo) [miyezo iwiriyi kwenikweni ndi ofanana kotheratu Mabaibulo American muyezo ndi dziko lonse]
Mapaipi atatu okhazikika:Chithunzi cha ASTM A106B, ASTM A53 B,API 5L PSL1 B; ASME SA106 B, ASME SA53 B, ASTM A106B;
Mapaipi apakati anayi ndi mipope yokhazikika isanu amapezeka makamaka mu mapaipi anthawi zonse aku America ndi mapaipi otumiza madzimadzi: Oyimilira:Chithunzi cha ASTM A106B, ASMEMtengo wa SA106B, ASTM A53Gr.B, API 5L PSL1 B, ASTM A333 Gr.6,API 5L X42ndi miyezo ina ndi zipangizo.


Nthawi yotumiza: Mar-13-2025

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