JIS G 3452ngumgangatho waseJapan ochaza umbhobho wentsimbi wekhabhoni odityanisiweyo wokuthutha umphunga, amanzi, i-oyile, igesi, umoya, njl. kuxinzelelo lokusebenza oluphantsi.I-JIS G 3452 inebakala elinye kuphela, i-SGP, elinokwenziwa nge-resistance welding (ERW) okanye i-butt welding.
I-JIS G 3452 Imibhobho yentsimbi iya kwenziwa ngokusebenzisa indibaniselwano efanelekileyo yeendlela zokwenza imibhobho kunye neendlela zokugqiba.
| Uphawu yebakala | Uphawu lwenkqubo yokuvelisa | Ukuhlelwa kwe-zinc-coating | |
| Inkqubo yokwenziwa kwemibhobho | Indlela yokugqiba | ||
| SGP | Ukuxhathisa kombane okudityanisiweyo: E Impundu idityanisiwe: B | Igqityiwe ngokushushu: H Kubanda kugqityiwe: C Njengoko ukuxhathisa kombane kufakwe iwelded: G | Imibhobho emnyama: imibhobho enganikwanga i-zinc-coating Imibhobho emhlophe: imibhobho enikwe i-zinc-coating |
Imibhobho iya kuhanjiswa ngokwesiqhelo njengoko yenziwe.Imibhobho egqitywe ngokubanda iya kuncinwa emva kokwenziwa.
Ukuba umbhobho wenziwa ngu-ERW, i-welds ngaphakathi nangaphandle kwendawo yombhobho iya kususwa ukufumana i-weld egudileyo kunye ne-contour yombhobho.
Ukuba kulinganiselwe ngenxa yobubanzi bombhobho okanye izixhobo, njl., i-weld kwindawo yangaphakathi ayinakususwa.
Ukulungiselela: Ngaphambi kokutshisa i-galvanizing, umphezulu wombhobho wensimbi kufuneka ucocwe ngokucokisekileyo ngokuqhunyiswa kwesanti, ukukha, njl njl.
Ukutyeba: Kwi-zinc-coating, i-distilled zinc ingot Udidi loku-1 oluchazwe kwi-JIS H 2107 okanye i-zinc enomgangatho olingana noko kuya kusetyenziswa.
Okunye: Ezinye iimfuno ngokubanzi zokugalela intsimbi zihambelana neJIS H 8641.
Uvavanyo: Umlinganiselo wokufana kwengubo yegalvanized ngokwe-JIS H 0401 Inqaku lesi-6.
Ukongeza kwizinto ezinikeziweyo, ezinye izinto ezidibeneyo zinokudibaniswa njengoko zifunwa.
| Uphawu lwebakala | P (Phosphorus) | S (Sulfur) |
| SGP | ubuninzi 0.040 % | ubuninzi 0.040 % |
I-JIS G 3452 inezithintelo ezimbalwa kukwakheka kweekhemikhali kuba i-JIS G 3452 isetyenziswa ikakhulu kwiinjongo eziqhelekileyo ezifana nokuthuthwa komphunga, amanzi, i-oyile, kunye negesi yendalo.Ukubunjwa kweekhemikhali zezinto eziphathekayo akuyona into ebaluleke kakhulu, kodwa kunoko iimpawu zomatshini wombhobho ukumelana noxinzelelo lokusebenza.
Iipropati ze-Tensile
| Uphawu lwebakala | Tensile strength | Elongation, min, % | ||||||
| Isiqwenga sovavanyo | Uvavanyo ulwalathiso | Ubukhulu bodonga, mm | ||||||
| N/mm² (MPA) | ＞3 ≤ 4 | ＞4 ≤ 5 | ＞5 ≤ 6 | ＞6 ≤ 7 | ＞7 | |||
| SGP | 290 imiz | No.11 | Ngokuhambelana ne-axis yombhobho | 30 | 30 | 30 | 30 | 30 |
| No.12 | Ngokuhambelana ne-axis yombhobho | 24 | 26 | 27 | 28 | 30 | ||
| No.5 | I-Perpendicular ukuya kwi-axis yombhobho | 19 | 20 | 22 | 24 | 25 | ||
Kwimibhobho yedayamitha engu-32A okanye ngaphantsi, amaxabiso obude kule theyibhile awasebenzi, nangona iziphumo zawo zovavanyo lobude ziya kubhalwa.Kule meko, imfuneko yobude obuvunyiweyo phakathi komthengi kunye nomvelisi ingasetyenziswa.
Ipropati yoKutyabeka
Umda: Kwiityhubhu ezinobukhulu obuqhelekileyo obungaphezulu kwama-50A (2B).
Akukho ziqhekeko xa ityhubhu isicaba ukuya 2/3 ububanzi ngaphandle ityhubhu.
Ukubanda
Ububanzi: Kwiityhubhu zetsimbi ezinomlinganiselo oqhelekileyo ≤ 50A (2B).
Bend lo mzekelo kwi-90 ° kunye ne-radius yangaphakathi ephindwe kathandathu ngaphandle kwedayamitha yangaphandle yombhobho ngaphandle kokuvelisa nakuphi na ukuqhekeka.
Umbhobho ngamnye wentsimbi kufuneka ube novavanyo loxinzelelo lwe-hydrostatic okanye uvavanyo olungonakalisi.
Uvavanyo lweHydrostatic
Uxinzelelo: 2.5 MPa;
Ixesha: Bamba ubuncinane imizuzwana emi-5;
Isigwebo: umbhobho wensimbi phantsi koxinzelelo ngaphandle kokuvuza.
Uvavanyo olungonakalisi
Uviwo lwe-ultrasonic oluchazwe kwi-JIS G 0582 luya kusebenza.Inqanaba lovavanyo linokuba qatha ngakumbi kunoDidi lwe-UE.
Uviwo lwangoku lwe-eddy oluchazwe kwi-JIS G 0583 luya kusebenza.Inqanaba lovavanyo linokuba nzima kakhulu kuneCandelo EZ.
Kwimibhobho ene-diameters ye-nominal ≥ 350A (14B), bala ububanzi ngokulinganisa i-circumference, apho ukunyamezela ku-± 0.5%.
Uhlobo lwesiphelo sombhobho we-DN≤300A/12B: i-threaded or flat end.
Uhlobo lwesiphelo sombhobho we-DN≤350A/14B: isiphelo esicaba.
Ukuba umthengi ufuna isiphelo se-beveled, i-angle ye-bevel yi-30-35 °, ububanzi be-bevel bomgca wepayipi yensimbi: max 2.4mm.
I-JIS G 3452 ineento ezifanayo kwiI-ASTM A53kwayeGB/T 3091, kunye nezixhobo zombhobho ezichazwe kule migangatho zingaqwalaselwa ngokulinganayo omnye komnye ngokwemigaqo yokusebenza kunye nesicelo.
Ukususela ekusekweni kwayo kwi-2014, i-Botop Steel iye yaba ngumthengisi ohamba phambili we-carbon steel pipe eNyakatho ye-China, eyaziwa ngenkonzo egqwesileyo, iimveliso eziphezulu, kunye nezisombululo ezibanzi.
Inkampani inikezela ngeendidi zemibhobho ye-carbon steel kunye nemveliso ehambelana nayo, kubandakanywa i-seamless, i-ERW, i-LSAW, kunye ne-SSAW ipayipi yensimbi, kunye nomgca opheleleyo wokufakelwa kwemibhobho kunye neeflange.Iimveliso zayo ezikhethekileyo zikwabandakanya i-alloys ephezulu kunye ne-austenitic stainless steels, elungiselelwe ukuhlangabezana neemfuno zeeprojekthi ezahlukeneyo zepayipi.
Qhagamshelana nathi, Iqela lobuchwephesha lilungele ukubonelela ngeenkonzo ezisemgangathweni kunye nezisombululo, sijonge phambili ekufikeleleni kwintsebenziswano emnandi kunye nawe, kunye nokuvula ngokudibeneyo isahluko esitsha sempumelelo.
