Gabatarwa an tsara wannan ma'auni bisa ga ƙa'idodin da aka bayar a GB/t1.1-2009.
Wannan ma'auni ya maye gurbin GB / t21237-2007 faranti mai faɗi da kauri don bututun watsa mai da iskar gas.Idan aka kwatanta da GB / t21237-2007, manyan canje-canjen fasaha sune kamar haka:
- ——- ya canza kewayon kauri na 6mm-50mm (duba Babi na 1, Babi na 1 na Bugu na 2007);
- ——- an gyaggyara rarrabuwa, hanyar nuna alama da lambar;Ana ƙara rarrabuwa da lambar, kuma hanyar nuna alama ta kasu kashi daban-daban bisa ga matsayin bayarwa daban-daban (duba Babi na 3, Babi na 3 na 2007 Edition);
- ——- PSL1 da PSL2 ingancin maki an ƙara, iri l210 / A da kuma dacewa dokokin an kara zuwa PSL1 ingancin sa;iri biyu l625m / x90m da l830m / x120m da kuma dacewa dokoki suna kara zuwa PSL2 ingancin sa (duba Table 1, tebur 2, tebur 3 da tebur 4);
- ——- an gyara abun cikin oda (duba Babi na 4, Babi na 4 na Bugu na 2007);
- ——- tanade-tanade kan girma, siffa, nauyi da kuma karkacewa da aka yarda an gyara su (duba Babi na 5, Babi na 5 na Bugu na 2007);ana gyara abubuwan da ke tattare da sinadarai, kayan inji da fasaha na kowane iri (Table 2, table 3, table 4, table 1, table 2, table 3 of 2007 Edition);
- ——- an gyaggyara ƙa’idar hanyar narkewa (duba 6.3, 2007 sigar 6.2);
- ——- sake duba matsayin isarwa (duba 6.4, 2007 sigar 6.3);
- --- ƙarin tanadi akan girman hatsi, haɗin da ba na ƙarfe ba da tsarin banded (duba 6.6, 6.7 da 6.8);- gyare-gyaren tanadi akan ingancin ƙasa da buƙatun musamman (duba 6.9 da 6.10, 2007 nau'ikan 6.5 da 6.7);- gyare-gyaren tanadi akan hanyar gwaji, marufi, alama da takaddun shaida mai inganci (duba Babi na 9, sigar 2007, Babi na 9);
- ——- ƙarin ƙa’idodi don zagaye na ƙima (duba 8.5);
- ——- Shafi A na ainihin ma'auni (Bugu da ƙari na 2007 A) an goge shi.Ƙungiyar masana'antar ƙarfe da ƙarfe ta China ce ta gabatar da wannan ƙa'idar.littafi
Ma'aunin yana ƙarƙashin ikon Kwamitin Fasaha na Daidaita Ƙarfe na Ƙasa (SAC / tc183).
Zayyana raka'a na wannan ma'auni: Shougang Group Co., Ltd., metallurgical masana'antu bayanai daidaitaccen bincike cibiyar, Jiangsu Shagang Group Co., Ltd., Hunan Hualing Xiangtan Iron da Karfe Co., Ltd., Guangzheng Energy Co., Ltd., Gangyannake Testing Technology Co., Ltd. da Magang (Group) Holding Co., Ltd.
Manyan masu zana wannan ma'auni: Shi Li, Shen qinyi, Li Shaobo, Zhang Weixu, Li Xiaobo, Luo Deng, Zhou Dong, Xu Peng, Li Zhongyi, Ding Wenhua, Nie Wenjin, Xiong Xiangjiang, Ma Changwen, Jia Zhigang. nau'ikan ma'aunin da aka maye gurbinsu da wannan ma'aunin sune kamar haka:
- ———GB/T21237—1997, GB/T21237—2007
Faranti mai faɗi da kauri don bututun mai da iskar gas
1.Iyakar
Wannan ma'auni yana ƙayyade hanyar rarrabuwa da alamar alama, girman, siffa, nauyi, buƙatun fasaha, hanyoyin gwaji, ƙa'idodin dubawa, marufi, alamomi da takaddun ingancin faffadan faffadan ƙarfe da kauri don bututun watsa mai da iskar gas.
Wannan ma'auni yana amfani da farantin karfe mai fadi da kauri (wanda ake magana da shi azaman farantin karfe) tare da kauri na 6 mm ~ 50 mm don bututun watsa mai da iskar gas da aka samar daidai da iso3183, GB / t9711 da apispec5l, da sauransu. faranti mai fadi da kauri don watsa ruwa da bututun walda kuma na iya komawa ga wannan ma'auni.
- Nassoshi na al'ada
Takaddun da ke gaba suna da mahimmanci don aiwatar da wannan takaddar.Don kwanan wata nassoshi, sigar kwanan watan ne kawai ke aiki ga wannan takaddar.Don nassoshi marasa kwanan watan, sabon sigar (ciki har da duk gyare-gyare) ya dace da wannan takaddar.
GB / t223.5 Ƙaddamar da ƙarfe na silicon acid mai narkewa da jimlar abun ciki na silicon ya rage hanyar molybdosilicate spectrophotometric.
GB / t223.12 hanyoyin da sinadaran bincike na baƙin ƙarfe, karfe da gami da sodium carbonate rabuwa diphenylcarbazide photometric Hanyar domin kayyade chromium abun ciki.
GB / t223.16 hanyoyin don nazarin sinadarai na ƙarfe, ƙarfe da gami Hanyar photometric na chromotropic acid don ƙayyade abun ciki na titanium.
GB / t223.19 hanyoyin da sinadaran bincike na baƙin ƙarfe, karfe da gami da neocuproine chloroform hakar photometric Hanyar domin kayyade jan karfe abun ciki.
GB / t223.26 karfe da ƙayyadaddun ƙayyadaddun abun ciki na molybdenum hanyar spectrophotometric thiocyanate.
GB/t223.40 karfe da gami kayyade abun ciki na niobium chlorosulfonol spectrophotometric Hanyar.
GB / t223.54 hanyoyin don sunadarai bincike na baƙin ƙarfe, karfe da gami da harshen wuta atom sha spectrometric Hanyar domin kayyade na nickel abun ciki.
Hanyoyin GB / t223.58 don nazarin sinadarai na ƙarfe, ƙarfe da gami da hanyar titration sodium arsenite sodium nitrite don tantance abun ciki na manganese.
GB/t223.59 Karfe da gami da ƙayyadaddun abun ciki na phosphorus bismuth phosphomolybdate blue spectrophotometry da antimony phosphomolybdate blue spectrophotometry.
Hanyoyin GB / t223.68 don nazarin sinadarai na ƙarfe, ƙarfe da gami da hanyar titrimetric potassium iodate don tantance abun ciki na sulfur bayan konewa a cikin tanderun tubular.
GB / t223.69 karfe da gami kayyade na carbon abun ciki na gas volumetric Hanyar bayan konewa a tubular makera.
GB / t223.76 hanyoyin don nazarin sinadarai na baƙin ƙarfe, ƙarfe da gami da harshen wutan atomic sha spectrometric Hanyar don tantance abun ciki na vanadium.Hanyoyin GB / t223.78 don nazarin sinadarai na ƙarfe, ƙarfe da gami Hanyar photometric kai tsaye na curcumin don tantance abun ciki na boron.
GB / t228.1 Kayan ƙarfe Gwajin juzu'i Kashi 1: Hanyar gwajin zafin daki.
GB/t229 kayan ƙarfe Charpy pendulum tasiri gwajin Hanyar.
Hanyar gwajin GB/t232 don lankwasa kayan ƙarfe.
GB / t247 na gabaɗaya don marufi, yin alama da takardar shaidar ingancin farantin karfe da tsiri.
GB / t709 girma, siffar, nauyi da kuma halatta sabawa na zafi birgima karfe farantin da tsiri.
GB / t2975 karfe da samfuran karfe - wuraren samfuri da shirye-shiryen samfuran gwaji don gwaje-gwajen kaddarorin inji.
GB / t4336 carbon da ƙananan ƙarfe na ƙarfe - Ƙaddamar da abun ciki na abubuwa da yawa - Hanyar sigar watsawar atomatik (hanyar yau da kullun).
GB / t4340.1 Kayan ƙarfe Vickers Gwajin taurin Kashi 1: Hanyoyin gwaji.
GB / t6394 Ƙaddamar ƙarfe na matsakaicin girman hatsi.
Dokokin GB / T8170 don ƙaddamar da ƙima da magana da ƙayyadaddun ƙimar iyaka.
GB / t8363 drop nauyi hawaye gwajin Hanyar for ferritic karfe.
GB / t10561 karfe - Ƙaddamar da abun ciki mara ƙarfe - gyare-gyaren hanyar Micrographic don daidaitattun sassa.
GB / t13299 kimanta Hanyar microstructure na karfe.
GB / t14977 Abubuwan buƙatu na gabaɗaya don ingancin farfajiyar farantin karfe 1.
GB/T21237-2018.
GB / T17505 buƙatun fasaha na gabaɗaya don isar da samfuran ƙarfe da ƙarfe.
GB / t20066 hanyoyin samfuri da samfurin shirye-shiryen don ƙayyade abubuwan sinadaran ƙarfe da ƙarfe.
GB / t20123 Ƙaddamar da ƙarfe na jimlar carbon da abun ciki na sulfur infrared absorption Hanyar bayan konewa a cikin tanderun shigar da mitar (hanyar yau da kullun).
GB/t20125 ƙananan ƙarancin ƙarfe ƙayyadaddun ƙayyadaddun abubuwa da yawa da aka haɗa tare da haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-ka-ce-na-tsayi na al'aura.
- Rabewa da wakilcin alamar
3.1Classification
3.1.1 bisa ga ingancin matakin:
a) ingancin matakin 1 (PSL1);
b) ingancin matakin 2 (PSL2).
Lura: PSL2 ya haɗa da buƙatun don ƙara yawan abubuwan sinadaran, kaddarorin injiniya, tauri, girman hatsi, abubuwan da ba na ƙarfe ba, taurin, da sauransu. Idan ba a nuna buƙatun da suka shafi wani matakin PSL ba, iri ɗaya ya shafi PSL1 da PSL2.
3.1.2 ta amfani da samfur:
a) karfe don iskar gas na bututun iskar gas;
b) karfe don danyen mai da bututun mai;
c) karfe don sauran ruwa canja wurin welded bututu.
3.1.3 bisa ga matsayin bayarwa:
a) zafi birgima (R);
b) daidaitawa da daidaita mirgina (n);
c) zafi injin mirgina (m);d) quenching + fushi (q).
3.1.4 bisa ga gefen gefen:
a) yankan gefen (EC);
b) ba tare da gyarawa (EM).
3.2 wakilcin alama
3.2.1 alamar karfe ta ƙunshi harafin Ingilishi na farko na "layi" wanda ke wakiltar bututun watsawa, ƙayyadadden ƙimar ƙarfin ƙarfin ƙimar ƙimar ƙarfe na bututu da matsayi (matakin ingancin PSL2 kawai).
Misali: l415m.
L - harafin Ingilishi na farko da ke wakiltar "layin" na bututun watsawa;
415 - yana wakiltar ƙayyadadden ƙimar ƙarfin ƙarfin amfanin ƙasa na bututun ƙarfe, naúrar: MPa;
M - yana wakiltar cewa matsayin isarwa shine TMCP.
2.2.
Alamar ta ƙunshi “X” mai wakiltar bututun ƙarfe, ƙayyadadden ƙimar ƙarfin ƙarfin amfanin ƙasa mafi ƙarancin bututun ƙarfe da matsayin bayarwa (matakin ingancin PSL2 kawai).
Misali: x60m.
X - yana wakiltar karfe bututu;
60-yana wakiltar ƙayyadaddun ƙayyadaddun ƙimar ƙarfin ƙarfin bututun ƙarfe, naúrar: Ksi (1ksi = 6.895mpa);
M - yana wakiltar cewa matsayin isarwa shine TMCP.
Lura: ƙayyadadden ƙayyadadden ƙarfin amfanin gona ba a haɗa shi cikin maki A da B.
3.2.3 duba Table 1 don matsayi na bayarwa da alamar PSL1 da PSL2 karfe.
3.2.4 koma zuwa Karin Bayani A don tebur kwatancen wannan ma'auni na ma'auni da ma'auni mai dacewa.
Lokacin aikawa: Agusta-31-2021