ASTM A106 Gr.BPipe yesimbi isina musono ipombi isina musono yesimbi ine kabhoni inodziya zvakanyanya muAmerican Society for Testing and Materials standard, iyo inowanzoshandiswa kutakurwa kwemvura pasi pekupisa kwakanyanya uye kumanikidzwa kwakanyanya. Zvinhu zvinoenderana muChina zvinonyanya kureva mwero wenyika yeChina (GB) uye mwero weindasitiri, uye zvinoda kuenzaniswa kubva pamaonero matatu: kuumbwa kwemakemikari, hunhu hwemakanika, uye mamiriro ekushandiswa.

Kazhinji pane nzira mbiri dzekuenzanisa zvinhu zvepamba:

Chinhu chekutanga chinoenderana nacho: simbi makumi maviri (GB/T 8163)
Simbi ye20 isimbi yakajairika yekuvaka kabhoni, inova chinhu chakajairika muGB/T8163 standard uye yakakodzera kutakurwa kwemvura. Kuenzanisa kwemakemikari: ASTM A106 Gr.B ine kabhoni (C) ye0.17-0.24%, uye manganese (Mn) ye0.29-1.06%; Simbi ye20 ine kabhoni ye0.17-0.24%, uye manganese ye0.35-0.65%. Kabhoni yeviri iyi iri pedyo, asi manganese yeASTM iri pedyo.A106 Gr.Bine muganho wepamusoro wepamusoro uye kushanda zvakanaka kwekupisa kwepamusoro.
Kuenzanisa hunhu hwemakanika: ASTM A106 Gr.B ine simba rekudhonza re >415MPa uye simba rekudhonza re >240MPa; simbi makumi maviri ine simba rekudhonza re >410MPa uye simba rekudhonza re >245MPa. Data racho rakafanana asi tembiricha dzinoshanda dzakasiyana.
Zvirambidzo zvekushandisa: Simbi makumi maviri yakakodzera mamiriro ekushanda ane tembiricha yedhizaini iri pasi pe350℃ uye kumanikidzwa kwakaderera. Kana ikashandiswa pakupisa kwakanyanya uye kumanikidzwa kwakakwira (senge mapaipi ebhoyira), chinhu chakakwirira chinofanira kusarudzwa.
Chinhu chechipiri chinoenderana nacho: 20G (GB 5310)
20G ipombi yesimbi isina musono yemabhaira ane simba guru, inova yeGB 5310 standard uye yakakodzera masisitimu emhepo anopisa zvakanyanya uye ane simba guru.
Kuenzanisa kuumbwa kwemakemikari:20Gine huwandu hwekabhoni hwe0.17-0.24%, huwandu hwemanganese hwe0.35-0.65%, uye kudzora kwakasimba kwehuwandu hwephosphorus nesarufa, izvo zvinoenderana zvakanyanya nezviratidzo zveASTMA106 Gr.B.
Kuenzanisa hunhu hwemakanika: Simba rekudhonza re20G i≥410MPa, uye simba rayo rekugadzira i>245MPa, rinova rakafanana neASTM A106 Gr.B, uye tembiricha yekushanda inobvumirwa inosvika 450℃.
Maitiro ekushandisa: 20G inowanzoshandiswa mumapaipi eboiler emagetsi ekupisa uye michina yemakemikari ine simba rakawanda, uye inogona kutsiva ASTM A106 Gr.B mumamiriro akafanana ekushanda.
Nzira dzekudzivirira kutsiva 1. Misiyano yakajairika: ASTM A106 Gr.B inoda bvunzo yekudhonza inochinjika uye bvunzo yekutsetseka, nepo GB/T 8163 ichingoda bvunzo yekudhonza inochinjika kwenguva refu. Pakutsiva, zvinodikanwa kusimbisa kana zvinhu zvekuyedza zvichizadzisa zvinodiwa.
2. Zvinodiwa pakurapa kupisa: ASTM A106 Gr.B inowanzo endeswa muchimiro chekupisa, 20G inoda kurapwa kwakajairika, uye maitiro acho anofanira kugadziriswa kana akatsiviwa.
3. Zvinodiwa pakupa chitupa: Kana purojekiti yekuburitsa kunze kwenyika ichitaura nezvechigadzirwa cheAmerican standard, zvinodikanwa kusimbisa nemutengi kana chinotsiva chenyika chinogamuchirwa. Mamwe mapurojekiti angada kuongororwa kwevamwe.
Nyaya yekushandisa inoshanda
Kambani yemafuta yakatenga mapaipi eASTM A106 Gr.B ekutakura mafuta mukupisa kwakanyanya. Nekuda kwekufamba kwenguva refu, yakachinja kuita zvinhu zve20G. Mushure mekuyedzwa nevamwe, kusimba kwesimba (-20℃ KV2234J) uye simba rekupisa kwakanyanya (simba rekukura>180MPa pa450℃) ye20G zvakazadzisa zvinodiwa zvekugadzira, uye chirongwa ichi chakagamuchirwa.
Pfupiso
ASTM A106 Gr.B inogona kuenderana nesimbi makumi maviri (mamiriro ekushanda akajairika) kana 20G (mamiriro ekushanda akanyanya kupisa uye ane kumanikidzwa kwakanyanya) muChina. Pakutsiva, zvakakosha kusanganisa tembiricha chaiyo, kumanikidzwa uye mwero wekuyedza. Zvinokurudzirwa kupa pekutanga kune zvinhu zve20G, zvine makemikari uye mashandiro ari pedyo nezvinodiwa zveUS uye zvine mashandisirwo akasiyana-siyana.