I-ASTM A234intsimbi eqhelekileyoizixhobo zombhobhoisetyenziswe ngokubanzi kwiinkqubo zemibhobho, ibandakanya i-carbon steel kunye ne-alloy steel material.

Yintoni izifakelo zemibhobho yentsimbi?
Ukufakwa kombhobho wentsimbi kwenziwa ngekhabhoni yentsimbi okanye umbhobho wentsimbi yealloyi, iipleyiti, iiprofayili, kwimilo ethile enokwenza umsebenzi (Tshintsha indlela yolwelo okanye umlinganiselo) kwiinkqubo zemibhobho. Ubukhulu becala ezi zixhobo zibandakanya ingqiniba yentsimbi (i-45 okanye i-90 degree bend), i-tee, i-reducer (i-concentric okanye i-eccentric reducer), umnqamlezo, i-caps, i-ingono, i-flanges, i-gasket, i-studs kunye njl.

Ngeenjongo zoshishino, kwiinkqubo zemibhobho ngokuqhelekileyo kufuneka sitshintshe indlela yokuhambisa; Lungisa ulwelo (i-oyile negesi, amanzi, udaka) izinga lokuhamba; Vula okanye uvale imibhobho, njl. Ngoko ke ukugqiba le misebenzi, izifakelo zemibhobho yentsimbi ziya kusetyenziswa.

Yintoni i-ASTM A234 WPB?
I-ASTM A234 yiNgcaciso yoMgangatho wokufakelwa kwemibhobho yentsimbi ibandakanya i-carbon steel kunye ne-alloy steel material yeenkonzo ezimodareyitha neziphezulu zobushushu. Igubungela izixhobo zentsimbi zeentlobo ezingenamthungo kunye ne-welded. Izixhobo zombhobho wentsimbi zisetyenziswa kwiipayipi zoxinzelelo kunye noxinzelelo lweenqanawa. Ezi zixhobo zokufakelwa ziquka intsimbi ebuleweyo, i-forgings, imivalo, iipleyiti, i-seamless okanye i-HFW (i-fusion welded) iimveliso zemibhobho, kunye nentsimbi yokuzalisa yongezwe.

I-ASTM A234 iquka intsimbi yekhabhoni ekhandiweyo kunye nezifakelo zentsimbi yentsimbi yolwakhiwo olungenamthungo noludityanisiweyo olugqunywe luhlaziyo lwamva nje lwe-ASTM B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, kunye neMSS -SP-97. njl.

Njengoko sisazi, izixhobo ze-ASTM A234 zentsimbi zisetyenziswa kwimibhobho yoxinzelelo kunye nemveliso yenqanawa yoxinzelelo, kwiinkonzo kumaqondo obushushu aphakathi kunye aphakamileyo. Izinto zokufakelwa kulo mgangatho zibandakanya intsimbi ebuleweyo, i-forgings, imivalo, iipleyiti, i-seamless okanye i-fusion-welded tubular iimveliso ezifakwe kwi-filler metal.
Kulo mgangatho uquka ukucaciswa kweengqiniba, iiteyi, izinciphisi, iikepusi kunye nomnqamlezo, uhlala uthatha iziphelo ze-butt welding.

I-ASTM A234 yentsimbi yokufakwa kombhobho imilinganiselo
Imigangatho: ANSI / ASME B16.9, B16.28, MSS-SP-43.
Uluhlu lweDiameter yaNgaphandle: 1/2” ukuya kuma-48”
Uluhlu lokutyeba: SCH 10, sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, SCH XXS njl.
Iintlobo zemibhobho yentsimbi yokwenziwa kweentlobo ngenkohliso, intambo, i-butt weld, kwaye ayinamthungo.

Amabanga kwi-ASTM A234:

Ukucaciswa kwe-ASTM A234 kunamabakala amaninzi, afana neWPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 njalo njalo.
Kolu Banga loMgangatho iWPB yeyona nto isetyenziswa kakhulu kwimibhobho yobushushu obuphakathi nophezulu. U-W uthetha i-weldable, u-P uthetha uxinzelelo, u-B libakala b, ubhekiselele kumandla esivuno esincinci.
Umthombo wezinto eziluhlaza ze-ASTM A234 WPB izixhobo zombhobho wensimbi zingavela kumbhobho wensimbi, njenge-ASTM A106 Gr.B kunye ne-C. Kwakhona kwi-steel plate, njenge-ASTM A285 Gr.C, i-ASTM A516 Gr 70, i-ASTM A572 njl.

I-ASTM A234 WPB ifakela umbhobho wentsimbi wentsimbi kunye neempawu zoomatshini:
1) Ukufakelwa kweBanga leWPB ezenziwe kwiipayipi zentsimbi okanye iipleyiti ubuninzi beC yi-0.35%.
I-2) Ukufakwa kwe-Forging Fittings Umxholo we-Carbon 0.35% ubuninzi kunye ne-Silicon umxholo we-0.35% ubuninzi, akukho ubuncinane.
I-3) Ngokunciphisa ngakunye kwe-0.01 ye-Carbon content, i-Manganese ephezulu yokunyusa i-0.06%, ukuya kuthi ga kwi-1.35% ephezulu kwi-Mn.
4) I-Copper, Nickel, Niobium kunye ne-Molybdenum sum content ayiyi kudlula i-1.00%.
5) I-Niobium + iMolybdenum ayiyi kudlula i-0.32%.

Iipropati zoomatshini ze-ASTM A234 izifakelo zemibhobho yeWPB:
Amandla okuqina 60,000 pis 415 Mpa
Isivuno Amandla 35,000 psi 240 Mpa
IiReyithingi zoxinzelelo: 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS ukuya ku-9000LBS.

I-ASTM A234 ibandakanya imibhobho engenamthungo kunye nofakelo oludityanisiweyo:
Kwimibhobho yentsimbi engenamthungo izifakelo ibhekisa kufakelo lwemathiriyeli ekrwada evela kwimibhobho yentsimbi engenamthungo kunye neetyhubhu; Ngaloo ndlela izifakelo zentsimbi edityanisiweyo zemibhobho zigquma izifakelo zemathiriyeli ekrwada evela kwimibhobho yentsimbi edityanisiweyo.
Kuya kuqatshelwa ukuba,
Ukucaciswa kwe-ASTM A234 akusigqubutheli izixhobo zokuwelda okanye izifakelo ezenziwe ngoomatshini.

Iinkqubo zokwenza imibhobho yentsimbi:
Iinkqubo zokwenziwa kokufakwa kwemibhobho kubandakanya ukubunjwa kunye nokubumba imisebenzi. Kwakunye nokucofa, ukubethelela, ukugqobhoza, ukukhupha, ukucaphukisa, ukuqengqeleka, ukugoba, ukuwelda kunye nokwenza machining. Okanye iinkqubo zokudibanisa ezimbini okanye ngaphezulu kwale misebenzi.

Ngexesha lokwenziwa kofakelo lwentsimbi yombhobho, imisebenzi engezantsi iya kuqatshelwa:
1) Ukungafezeki okulimazayo, iziphene ze-welding aziyi kudalwa.
2) Emva kokubumba okanye ukwenza izixhobo kwiqondo lokushisa elifanelekileyo, liya kupholiswa kwindawo efanelekileyo kwiqondo lokushisa elingaphantsi koluhlu olubalulekileyo. Kwaye akukho ziphene ziya kwenziwa ngexesha leenkqubo zokupholisa. Isantya sokupholisa asiyi kuba ngaphezu emoyeni.
3) Ukuhlolwa okufanelekileyo kuya kwenziwa emva kokuvelisa. (Uvavanyo lwe-Hydrostatic, uvavanyo lokuqina, uvavanyo lwe-tensile njl.njl)

I-alloy steel pipe fittings amabakala kwi-ASTM A234

I-alloy steel pipe fitting yenziwe ngezinto ze-alloy ezifana ne-Chrome, i-Molybdenum, i-Nickel alloy, i-Hastelloy alloy, i-Monel, i-Inconel, kunye nokunye. Isetyenziswa kakhulu kwimibhobho yeoli nerhasi, kumashishini ekhemikhali, kumaziko ombane, kwiziza zamandla enyukliya, nakwiimeko zeseva.

I-alloy steel pipe fittings ibandakanya i-buttweld fittings, i-alloy steel radius bend ende, i-alloy steel fittings kunye nokunye.
I-alloy steel buttweld fittings ithatha umgangatho we-ASTM A234, ine-WP1, i-WP5, i-WP11, i-WP12, i-WP22, i-WP23 kunye ne-WP91 amabakala. Inqanaba leklasi kwi-CL1, CL2, CL3.

I-ASTM A234 ingxubevange yentsimbi yombhobho yofakelo ibandakanya iingqiniba zentsimbi kwiradiyasi ende nemfutshane, ialloy steel eccentric & concentric reducer, ialloy steel caps & crosss, ialloy steel couplings, ialloy steel tees, ialloy steel nipples, ialloy steel caps kunye nokunye okuninzi. Ineentlobo ezingenamthungo, ezidityanisiweyo kunye nezenziwe zenziwe.
I-alloy steel forged fittings, ithatha umgangatho we-ASTM A182 ubhekisela kwiiflange zepayipi zentsimbi. Umgangatho wezinto eziphathekayo kwi-ASTM A182 F1, F5, F9, F11 Class 1, F12 Class 1, F22 Class 1 ETC.

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