Kutevedzera ISO2531: DINSEN Standard yeDuctile Iron Pipe Quality

Pakati pezvivakwa uye masisitimu ekufambisa mvura, chikamu chimwe nechimwe chepombi yesimbi ine ductile iron hachina mvura negasi chete, asiwo mafambiro ebudiriro yemaguta nekugara zvakanaka kwevagari. Pano, mhando haisi kungotaura zvisina maturo; kutenda nekuzvipira zvakarukwa musimbi yega yega uye zvakabatanidzwa mumaitiro ese.DINSEN, ichinyatsoziva basa iri rakakosha, inoratidza kuenderera kwayo mberi nekutsvaga mhando kuburikidza nekutevedzera zvizere uye kudarika mwero wepasi rose weISO2531, ichiratidza kuenzanisa kwakasimba kwekuongorora mhando yezvigadzirwa.Mapaipi esimbi e-ISO2531 akagadzirwa nesimbi.

Mutemo uyu unotsanangura zvinodiwa zvehunyanzvi, nzira dzekuyedza uye kudzorwa kwemhando yemapombi esimbi ane ductile, zvigadziko, zvishandiso uye nzvimbo dzawo dzinoshandiswa kutakura mvura (senge mvura yekunwa, mvura yekudiridza, nezvimwewo).

1. Ductile Iron PipeDE

Dhayamita yekunze yesoketi inogona kuonekwa nekuyera denderedzwa netepi yekuyera. Neimwe nzira, zviyero zviviri necaliper zvinofanirwa kuitwa panzvimbo dzakatwasuka muchikamu chakayambuka.Fomura ye ovality ndeiyi: Ovality = (A1-A2)/(A1+A2).

2.Ductile Iron PipeID

Dhayamita yemukati yepombi yesimbi yakakandwa nepakati inenge yakaenzana nedhayamita yayo yezita, DN value, mumamilimita.

3. Ductile Iron PipeUkobvu hwemadziro

Shandisa ultrasonic thickness gauge ine coupling agent kuti inamatire panzvimbo inofanira kuyerwa. Kururama kwechishandiso ichi i 0.1mm. Nzvimbo yekuyera inzvimbo mbiri dzakatarisana pamagumo ese echigadzirwa. Mhedzisiro yekuyera inoenderana netafura inotevera:

4. Kureba kwepombi yesimbi yeDuctile

5. Kutenderera kwechiedza

Kusatenderera kwechikamu chepombi yakakandwa.
Ovality = 100 x (A1-A2) / (A1+A2)

A1: yepamusoro A2: Mini

6. Kutwasuka

Mapaipi esimbi anofanira kunge akatwasuka, aine musiyano mukuru usingapfuure 0.125% yehurefu hunoshanda (6000 x 0.125% = 7.5mm).Kana pombi isina kuvharwa, kuongorora nemaziso kunofanirwa kushandiswa kuti pave nekutwasuka. Kana paine kusava nechokwadi, nzira inotevera inofanira kushandiswa.Peta pombi neaxial pamastands maviri kana maroller kuti uone kuti yakatwasuka here. Nzvimbo iri pakati pemastands/maroller inofanira kunge iri 2/3 yehurefu hwepombi. Nzvimbo yepamusoro yekutsauka kubva pakutwasuka inofanira kuonekwa, uye kutsauka hakufanirwe kudarika muganho we7.5mm.

7. Hunhu hwekusunga

Zvinodiwa zvekukodzera ndeizvi:

Zvinodiwa pakukundikana: Tora mabhawa maviri ekuyedza kubva murin'i imwe chete yemuenzaniso kuti uedze. Kana hunhu hwemuchina hwebhawa rimwe chete rekuyedza mumuenzaniso wakafanana hukasazadzisa zvinodiwa, mapaipi akawanda achaongororwa uye maitiro ekubata zvikanganiso achaitwa.

8. Kuomarara kweBrinell

Muyedzo wekuomarara weBrinell unoshanda nekudzvanya bhora resimbi rine dhayamita yakatarwa pamusoro pemuenzaniso nekumhanya kwakatarwa pasi pesimba rekuyedza rakatarwa. Simba racho rinozobviswa mushure mekunge simba rekuyedza rakatarwa rachengetwa kwenguva yakatarwa. Kuomarara kwesimbi yeBrinell kunoratidzwa seavhareji yekumanikidzwa inoshandiswa pamusoro penzvimbo yakatenderera yekupinda mukati. Muyedzo wekuomarara weBrinell haukanganiswi nekuparadzaniswa kwema microscopic kana kusagadzikana kwezvikamu mumuenzaniso. Nekuverenga chiyero chenzvimbo yekuiswa mukati kune mutoro wakashandiswa, inoongorora zvinhu zvakaita se ductility uye kusakara, uye inowanzoshandiswa senzira yekuyera kutonga kwemhando yeindasitiri.

Kuomarara kweBrinell kwemapombi esimbi e centrifugal ductile hakufanirwe kudarika 230 HBW, uye kuomarara kweBrinell kwemapombi esimbi esimbi asina centrifugal ductile, fittings nezvimwe hazvifanirwe kudarika 250 HBW. Nzvimbo inokanganiswa nekupisa yezvikamu zvakasungirirwa inobvumirwa kuva nekuomarara kwakakwira kweBrinell.

9. Kuumbwa kwemakemikari esimbi ine ductile, kuonekwa kwespectral

Nzira dzeSpectroscopic dzinogona kuongorora zviri muzvinhu zvakakosha zvakaita sesilicon nemagnesium musimbi inonyungudutsa munguva chaiyo (semuenzaniso, zviri musilicon yekupedzisira zvinokanganisa zvakananga kuomarara kwesimbi inonyungudutsa yeferritic ductile iron pakupisa kwakaderera), zvichitsiva nzira dzechinyakare dzemakemikari dzekuedza nekukurumidza uye kutungamira kugadzirisa maitiro ekugadzira. Nekuyera kupararira kwezvinhu zvakaita secarbon nesarufa, tinova nechokwadi chekuti graphite nodularity rate (spheroidization rate ≥90%) inosangana nesimba rinodiwa rekunyungudutsa (≥420 MPa) uye kureba (≥10%). Kutarisa simbi panguva chaiyo panguva yekuumbwa kwayo kunoderedza marara uye kunovandudza kunaka kwemukati memapombi esimbi anonyungudutsa uye zvinogadzirisa.

 Zvinodiwa zvekudzora zvikamu zvikuru zvesimbi yakanyungudutswa mushure mekuumbwa kwesimbi

Tora mushumo wekuongorora wemhando yepamusoro