JIS G 3444: Machubhu esimbi yekabhoni ekuvaka kwakazara.
Inotsanangura zvinodiwa pamapombi esimbi yekabhoni anoshandiswa muinjiniya yezvivakwa nekuvaka, zvakaita seshongwe dzesimbi, scaffolding, foundation piles, foundation piles, uye anti-slip piles.
STK 400pombi yesimbi ndeimwe yemhando dzakajairika, ine hunhu hwemakanika hwesimba rekudhonza diki re400 MPauyesimba shoma regoho re235 MPa. Simba rayo rakanaka uye kugara kwenguva refuita kuti ive yakakodzera mashandisirwo akasiyana-siyana.
Zvichienderana nesimba shoma rekusimba kwesimbi, pombi yesimbi yakakamurwa kuita makirasi mashanu, ayo ndeaya:
STK 290, STK 400, STK 490, STK 500, STK 540.
Chinangwa chikuru Dhayamita yekunze: 21.7-1016.0mm;
Mirwi yenheyo nemirwi yekudzivirira kudonha kwevhu OD: pasi pe318.5mm.
| Chiratidzo chegiredhi | Chiratidzo chemaitiro ekugadzira | |
| Maitiro ekugadzira mapaipi | Nzira yekupedzisa | |
| STK 290 | Musono: S Kudzivirirwa kwemagetsi kwakabatana: E Yakasungirirwa matako: B Yakasungirirwa otomatiki netambo: A | Yakapedzwa nekupisa: H Yakapedzwa nechando: C Sezvo simba rekudzivirira magetsi rakasungirirwa: G |
| STK 400 | ||
| STK 490 | ||
| STK 500 | ||
| STK 540 | ||
Machubhu acho anofanira kugadzirwa nemusanganiswa wenzira yekugadzira machubhu uye nzira yekupedzisa yakaratidzwa.
Zvikurukuru, dzinogona kuiswa muzvikamu zvinomwe zvinotevera, saka sarudza mhando yakakodzera zvichienderana nezvinodiwa zvakasiyana:
1) Chubhu yesimbi isina musono yakapedzwa nekupisa: -SH
2) Chubhu yesimbi isina musono yakapedzwa nechando: -SC
3) Sekudzivirira kwemagetsi, chubhu yesimbi yakasungirirwa: -EG
4) Chubhu yesimbi yakasungirirwa nesimbi inopisisa yakashongedzwa nemagetsi: -EH
5) Chubhu yesimbi yakasungirirwa yesimbi inotonhora inodzivirirwa nemagetsi: -EC
6) Machubhu esimbi akasungirirwa pamatako: -B
7) Machubhu esimbi akasungirirwa otomatiki: -A
| Kuumbwa kweMakemikaria% | |||||
| Chiratidzo chegiredhi | C (Kabhoni) | Si (Silicone) | Mn (Manganese) | P (Phosphorus) | S (Sarufa) |
| zvakanyanya | zvakanyanya | zvakanyanya | zvakanyanya | ||
| STK 400 | 0.25 | — | — | 0.040 | 0.040 |
| aZvinhu zve alloy zvisina kuiswa patafura iyi uye zvinhu zvakanyorwa ne "—" zvinogona kuwedzerwa kana zvichidikanwa. | |||||
STK 400Isimbi ine kabhoni shoma ine kugona kuchinjika zvakanaka uye inoshanda zvakanaka pakushandiswa kwechimiro chinoda kuchinjika. Phosphorus nesarufa zvinodzorwa padanho rakaderera kuti zvibatsire kuchengetedza kusimba kwese uye kushanda kwechinhu chacho. Kunyangwe hazvo kukosha kwakanangana kwesilicon nemanganese kusina kupihwa, zvinogona kugadziriswa mukati memiganhu inobvumirwa kuti zviwedzere kunaka kwesimbi.
Simba reKusimba uye Kuoma Kwesimba kana Kuratidza Kushushikana
Simba rekukwesha rinobata machubhu anokwesha otomatiki. Ndiyo nzira yekubatanidza yeSAW.
| Chiratidzo chegiredhi | Simba rekusimba | Kuoma kwemhedzisiro kana kushushikana kweuchapupu | Simba rekusimba mukunamira |
| N/mm² (MPA) | N/mm² (MPA) | N/mm² (MPA) | |
| miniti | miniti | miniti | |
| STK 400 | 400 | 235 | 400 |
Kureba kweJIS G 3444
Kureba kunoenderana nenzira yekugadzira machubhu kunoratidzwa muTafura 4.
Zvisinei, kana bvunzo yekudhonza ikaitwa paTest Piece Nhamba 12 kana Test Piece Nhamba 5 yakatorwa kubva muchubhu iri pasi pe8 mm muukobvu hwemadziro, kureba kwacho kunofanira kuenderana neTafura 5.
Patembiricha yemumba (5 °C kusvika 35 °C), isa sampuli pakati pemaplate maviri akatsetseka wodzvanya zvakasimba kuti atetepe kusvika padaro H ≤ 2/3D pakati pemaplate, wobva watarisa kana paine mitswe musampuli.
Patembiricha yemumba (5 °C kusvika 35 °C), peta sampuli yakatenderedza silinda pakona yekukotama ye90° uye radius yemukati isingapfuure 6D uye tarisa sampuli yacho kuti haina kutsemuka here.
Miedzo ye hydrostatic, bvunzo dzisingaparadzi dze welds, kana mimwe miedzo inofanira kubvumwa pachine nguva pane zvinodiwa.
Kushivirira kweDhayamita yeKunze
Kushivirira Ukobvu hweMadziro
Kushivirira Kwehurefu
Kureba ≥ kureba kwakataurwa
Nzvimbo dzemukati nedzekunze dzepombi yesimbi dzinofanira kunge dzakatsetseka uye dzisina zvikanganiso zvisingakodzeri midziyo.
Pombi yega yega yesimbi inofanira kunge yakanyorwa neruzivo runotevera.
a)Chiratidzo chegiredhi.
b)Chiratidzo chenzira yekugadzira.
c)Zviyero.Dhayamita yekunze uye ukobvu hwemadziro zvinofanira kunge zvakaiswa chiratidzo.
d)Zita remugadziri kana chidimbu.
Kana chiratidzo chiri pachubhu chakaoma nekuti dhayamita yaro yekunze idiki kana kana mutengi akakumbira kudaro, chiratidzo chacho chinogona kupihwa pachubhu yega yega nenzira yakakodzera.
Machira ekudzivirira ngura akadai semachira ane zinc yakawanda, machira e epoxy, machira ependi, nezvimwewo zvinogona kuiswa pamusoro pekunze kana mukati.
STK 400 inopa simba rakawanda uye inochengetedza mari, zvichiita kuti ive yakakodzera mapurojekiti mazhinji einjiniya nekuvaka.
Machubhu esimbi eSTK 400 anowanzo shandiswa muindasitiri yekuvaka uye anonyanya kukodzera kushandiswa sezvinhu zvekuvaka zvakaita semakoramu, matanda, kana mafuremu muzvivakwa zvemabhizinesi nedzimba.
Yakakodzerawo mabhiriji, zvivakwa zvinotsigira, uye mamwe mapurojekiti anoda simba repakati nepakati uye kugara kwenguva refu.
Inogona zvakare kushandiswa kugadzira nzira dzekudzivirira migwagwa, mafuremu ezviratidzo zvemugwagwa, nezvimwe zvivakwa zveveruzhinji.
Mukugadzira, STK 400 inogona kushandiswa kugadzira mafuremu uye zvivakwa zvekutsigira michina nemidziyo nekuda kwekugona kwayo kutakura mutoro zvakanaka uye kushanda kwayo.
Ndokumbirawo mucherechedze kuti kunyangwe zviyero izvi zvakafanana mukushandiswa uye mashandiro, panogona kunge paine misiyano midiki mukugadzirwa kwemakemikari chaiwo uye mamwe maparamita ehunhu hwemakanika.
Pakutsiva zvinhu, zvinodiwa zvezvinodiwa nemitemo zvinofanirwa kuenzaniswa zvakadzama kuti zvive nechokwadi chekuti zvinhu zvakasarudzwa zvichasangana nezvinodiwa zvehunyanzvi uye zvekuchengetedza zvepurojekiti.
Kubva payakatangwa muna 2014, Botop Steel yave kambani inotungamira mukutengesa mapaipi esimbi yekabhoni kuChamhembe kweChina, inozivikanwa nebasa rakanaka kwazvo, zvigadzirwa zvemhando yepamusoro, uye mhinduro dzakakwana.
Kambani iyi inopa mapaipi akasiyana-siyana esimbi yekabhoni nezvimwe zvigadzirwa zvine chekuita nayo, zvinosanganisira mapaipi esimbi asina musono, ERW, LSAW, uye SSAW, pamwe chete nehurongwa hwakazara hwemapipi nemaflange.
Zvigadzirwa zvayo zvehunyanzvi zvinosanganisirawo alloys dzemhando yepamusoro uye simbi dzisina ngura dzinoshandiswa mukugadzira, dzakagadzirirwa kusangana nezvinodiwa nemapurojekiti akasiyana-siyana emapombi.
