ASTM A500 ipayipi resimbi yekabhoni rakasungirirwa uye risina musono rinogadzirwa nesimbi yekabhoni rinoshandiswa pakuvaka mabhiriji akasungirirwa, akakotamiswa, kana kuti akasungwa nemabhori uye zvinangwa zvekuvaka zvakajairika.
Pipe yeGiredhi C ndeimwe yemhando dzine simba guru rekugadzira risingasviki 345 MPa uye simba rekudhonza risingasviki 425 MPa.
Kana uchida kuziva zvakawanda nezveASTM A500, unogona kudzvanya kuti uzvionere!
ASTM A500 inoronga mapaipi esimbi muzvikamu zvitatu,giredhi B, giredhi C, uye giredhi D.
CHS: Zvikamu zvine maburi akatenderera.
RHS: Zvikamu zvine mhango zvina sikweya kana kuti rectangular.
EHS: Zvikamu zvine mhango dzakaita sedenderedzwa.
Simbi inofanira kugadzirwa neimwe kana kupfuura yenzira dzinotevera:okisijeni yekutanga kana chitofu chemagetsi.
Tubhu yacho inofanira kugadzirwa nemusonokana maitiro ekunamira.
Machubhu akasungirirwa anofanira kugadzirwa nesimbi yakatsetseka yakamonerwa nemagetsi (ERW). Chikamu chehurefu chechubhu chakasungirirwa chinofanira kumonerwa nehupamhi hwacho kuitira kuti simba rekugadzira chivakwa chechubhu rive nechokwadi.
ASTM A500 Giredhi C inogona kubviswa kana kuderedza kushushikana.
Kuisa chirongo kunoitwa nekudziisa chubhu kusvika pakupisa kwakanyanya wozoitonhodza zvishoma nezvishoma. Kuisa chirongo kunogadzirisa chimiro chechinhu ichi kuti chiwedzere kusimba uye kufanana kwacho.
Kuderedza kushushikana kunowanzoitwa nekupisa chinhu kusvika patembiricha yakaderera (kazhinji yakaderera pane yekubatidza) wobva wachibata kwenguva yakati wozochitonhodza. Izvi zvinobatsira kudzivirira kukanganiswa kana kuputika kwechinhu panguva yekushanda kunotevera kwakadai sekukwesha kana kucheka.
Kuwanda kwebvunzo: Mienzaniso miviri yepombi inotorwa kubva muchikamu chimwe nechimwe chezvidimbu mazana mashanu kana chidimbu chayo, kana mienzaniso miviri yezvinhu zvakapetwa zvakati sandara zvinotorwa kubva muchikamu chimwe nechimwe chezvikamu zvinoenderana nenhamba yezvidimbu zvezvinhu zvakapetwa zvakati sandara.
Nzira dzekuedza: Nzira nemaitiro ane chekuita nekuongorora makemikari zvinofanira kunge zvichienderana neTest Methods, Practices, uye Terminology A751.
| Zvinodiwa zveMakemikoro,% | |||
| Kuumbwa | Giredhi C | ||
| Kuongorora Kupisa | Kuongorora Chigadzirwa | ||
| C (Kabhoni)A | zvakanyanya | 0.23 | 0.27 |
| Mn (Manganese)A | zvakanyanya | 1.35 | 1.40 |
| P (Phosphorus) | zvakanyanya | 0.035 | 0.045 |
| S(Sarufa) | zvakanyanya | 0.035 | 0.045 |
| Cu (Mhangura)B | miniti | 0.20 | 0.18 |
| APakudzikiswa kwega kwega kwe0.01 muzana pasi pehuwandu hwakatarwa hwekabhoni, kuwedzera kwe0.06 muzana pamusoro pehuwandu hwakatarwa hwemanganese kunobvumirwa, kusvika pa1.50% nekuongorora kupisa uye 1.60% nekuongorora kwechigadzirwa. BKana simbi ine mhangura inotsanangurwa muodha yekutenga. | |||
Zviyero zvinodhonzwa zvinofanira kutevedzera zvinodiwa zveTest Methods neDefinitions A370, Appendix A2.
| Zvinodiwa zveKusimba | ||
| Rondedzero | Giredhi C | |
| Simba rekusimba, min | psi | 62,000 |
| MPa | 425 | |
| Simba rekupa, min | psi | zviuru makumi mashanu |
| MPa | 345 | |
| Kureba kwemainji maviri (50 mm), miniti,C | % | 21B |
| BInoshanda kune ukobvu hwemadziro hwakatarwa (t) hwakaenzana kana kupfuura 0.120 in. [3.05mm]. Kune ukobvu hwemadziro hwakatarwa hwakareruka, kukosha kwehurefu hushoma hunofanira kunge huri muchibvumirano nemugadziri. CHunhu hushoma hwekureba hwakatarwa hunoshanda chete kune bvunzo dzakaitwa usati watumira chubhu. | ||
Mukuyedza, sampuli inoiswa mumuchina wekuyedza une simba rekubata uye wobva watambanudzwa zvishoma nezvishoma kusvika yatyoka. Mukati mekuita uku, muchina wekuyedza unonyora data rekumanikidzwa uye rekumanikidzwa, nokudaro uchigadzira curve yekumanikidzwa-kumanikidzwa. Curve iyi inotibvumira kuona maitiro ese kubva pakushanduka kwe elastic kusvika pakushanduka kwepurasitiki kusvika pakuputika, uye kuwana simba rekubudirira, simba rekumanikidzwa uye data rekureba.
Kureba kwemuenzaniso: Kureba kwemuenzaniso unoshandiswa pakuedza hakufanirwe kunge kuri pasi pe 65 mm (2 1/2 in).
Kuedzwa kweDuctility: Pasina kutsemuka kana kutyoka, chifananidzo chinokotamiswa pakati pemaplate akafanana kusvika daro riri pakati pemaplate rava pasi pe "H" kukosha kwakaverengerwa nefomura inotevera:
H=(1+e)t/(e+t/D)
H = chinhambwe chiri pakati pemaplates akapfava, mu. [mm],
e= kuchinja kwehurefu hweyuniti (inogara iripo yegiredhi rakapihwa resimbi, 0.07 yeGiredhi B, uye 0.06 yeGiredhi C),
t= ukobvu hwemadziro hwakatarwa hwechubhu, mu. [mm],
D = dhayamita yekunze yechubhu, mu. [mm].
Kuvimbikatyakatangwa: Ramba uchibata sampuli kusvika sampuli yatyoka kana kuti madziro akatarisana nemuenzaniso asangana.
Kukundikanacriteria: Kukwesha kweganda kana zvinhu zvisina kusimba zvinowanikwa panguva yese yekuyedza kutetepa zvichave chikonzero chekurambwa.
Kuedza kupfura kunowanikwa pamachubhu akatenderera ane dhayamita ≤ 254 mm (10 in) mudhayamita, asi hazvimanikidzwi.
| Rondedzero | Chiyero | Cherechedza |
| Dhayamita Yekunze (OD) | ≤48mm (1.9 in) | ± 0.5% |
| ＞50mm (2 in) | ± 0.75% | |
| Ukobvu hwemadziro (T) | Ukobvu hwemadziro hwakatarwa | ≥90% |
| Kureba (L) | ≤6.5m (22ft) | -6mm (1/4in) - +13mm (1/2in) |
| ＞6.5m (22ft) | -6mm (1/4in) - +19mm (3/4) | |
| Kururama | Kureba kuri muzvikamu zvehumambo (ft) | L/40 |
| Mayunitsi ekureba akaenzana nemetric (m) | L/50 | |
| Zvinodiwa zvekushivirira zviyero zvine chekuita nesimbi yakatenderera | ||
Kusarudza Zvikanganiso Zvakakwana
Zvikanganiso pamusoro zvinofanira kuverengerwa sezvikanganiso kana kudzika kwezvikanganiso pamusoro kuri zvekuti ukobvu hwemadziro asara huri pasi pe90% yeukobvu hwemadziro hwakatarwa.
Mavanga akarapwa, mavanga madiki emota kana kuti akamonereka, kana mavanga asina kudzika hazvionekwe semavanga asina kunaka kana zvichigona kubviswa mukati memiganhu yakatarwa yeukobvu hwemadziro. Mavanga aya epamusoro haadi kubviswa zvine hungwaru.
Kugadzirisa Zvikanganiso Zvakakwana
Zvikanganiso zvine ukobvu hwemadziro hunosvika 33% hweukobvu hwakatarwa zvinofanira kubviswa nekucheka kana kukuya kusvika simbi isina kukanganisa yaonekwa.
Kana kusona tambo kuchidikanwa, nzira yekunamisa tambo inofanira kushandiswa.
Mushure mekugadziriswazve, simbi yakawandisa inofanira kubviswa kuti pave nepamusoro pakanaka.
Zita remugadziri, rudzi, kana chiratidzo chekutengeserana; zita rechiratidzo (gore rekuburitswa haridiwi); uye tsamba yegiredhi.
Pamapaipi ane dhayamita yekunze ye 4 in [10 cm] kana pasi, ruzivo rwekuzivikanwa runotenderwa pama labels akabatanidzwa zvakachengeteka pabundle rega rega remapaipi.
Panewo sarudzo yekushandisa mabarcode senzira yekuwedzera yekuziva, uye zvinokurudzirwa kuti mabarcode aenderane neAIAG Standard B-1.
1. Kuvakwa kwechivako: Simbi yeGiredhi C inowanzo shandiswa mukuvaka zvivakwa kana paine rutsigiro rwechivakwa. Inogona kushandiswa kumafuremu makuru, zvivakwa zvedenga, pasi, uye madziro ekunze.
2. Mapurojekiti ezvivakwa: Kune mabhiriji, zviratidzo zvemigwagwa mikuru, uye mapuranga esimbi kuti zvipe rutsigiro rwakakodzera uye kugara kwenguva refu.
3. Zvivako zvemaindasitiri: muzvigadziko zvekugadzira uye mamwe maindasitiri, inogona kushandiswa pakubatanidza, masisitimu ekufurema, uye makoramu.
4. Zvivakwa zvesimba rinogona kudzokororwa: Inogona zvakare kushandiswa mukuvaka zvivakwa zvesimba remhepo nezuva.
5. Zvivako zvemitambo nemidziyo: zvivakwa zvemitambo zvakaita semableachers, magoal posters, uye kunyange midziyo yekurovedza muviri.
6. Michina yekurima: Inogona kushandiswa kuvaka mafuremu emuchina nenzvimbo dzekuchengetera zvinhu.
Saizi: Ipai dhayamita yekunze neukobvu hwemadziro ekuisa machubhu akatenderera; ipai zviyero zvekunze neukobvu hwemadziro ekuisa machubhu akakombama neakatenderera.
Huwandu: Taura hurefu hwese (mafiti kana mamita) kana huwandu hwehurefu hwemunhu mumwe nemumwe hunodiwa.
Kureba: Ratidza rudzi rwehurefu hunodiwa - husina kurongeka, hwakawanda, kana hwakati wandei.
Tsanangudzo yeASTM 500: Ipa gore rekuburitswa kwechirevo cheASTM 500 chataurwa.
Giredhi: Ratidza giredhi rezvinhu (B, C, kana D).
Kusarudzwa kwezvinhu: Ratidza kuti chinhu chacho chakagadzirwa nechubhu inotonhora.
Nzira Yokugadzira: Taura kana pombi yacho isina musono kana kuti yakasungirirwa.
Kushandiswa Kwekupedzisira: Tsanangura chinangwa chekushandisa pombi
Zvinodiwa Zvakakosha: Nyora zvimwe zvinodiwa zvisingafukidzwe nezvinodiwa zvakajairwa.
Isu tiri vagadziri vemapaipi esimbi ecarbon emhando yepamusoro uye vatengesi vanobva kuChina, uye tiri vagadziri vemapaipi esimbi asina musono, tichikupai mhinduro dzakasiyana-siyana dzemapaipi esimbi!
Kana uchida kuziva rumwe ruzivo nezve zvigadzirwa zvemapaipi esimbi, unogona kutibata!
