ASTM A500 mai sanyi ne mai walƙiya kuma maras sumul carbon karfe tsarin tubing don welded, riveted, ko bolted gada da ginin gine-gine da dalilai na gabaɗaya.
Bututun Grade C yana ɗaya daga cikin maki tare da ƙarfin yawan amfanin ƙasa wanda bai gaza 345 MPa ba kuma ƙarfin ɗaure wanda bai gaza 425 MPa ba.
Idan kuna son ƙarin sani game daASTM A500, za ku iya danna don duba shi!
ASTM A500 yana rarraba bututun ƙarfe zuwa maki uku,daraja B, daraja C, da kuma D.
CHS: Sassan da'ira.
RHS: Sassan ramukan murabba'i ko rectangular.
EHS: Sassan ramukan Elliptical.
Za a yi ƙarfe ɗaya ko fiye daga cikin matakai masu zuwa:asali oxygen ko wutar lantarki.
Za a yi tubing ta amko tsarin walda.
Za a yi bututun da aka ƙera daga ƙarfe mai birgima ta hanyar tsarin waldawa-juriya (ERW).Haɗin gindin gindi mai tsayi na bututun welded za a haɗa shi a kan kaurinsa ta yadda za a tabbatar da ƙarfin ƙira na sashin bututun.
ASTM A500 Grade C na iya shafewa ko rage damuwa.
Ana cim ma gyaran bututun ta hanyar dumama bututu zuwa babban zafin jiki sannan a sanyaya shi a hankali.Annealing yana sake tsara ƙananan kayan don inganta taurinsa da daidaito.
Ana samun kawar da damuwa gabaɗaya ta dumama kayan zuwa ƙananan zafin jiki (yawanci ƙasa da na annealing) sannan a riƙe shi na ɗan lokaci sannan a sanyaya shi.Wannan yana taimakawa hana ɓarna ko fashewar kayan yayin ayyuka na gaba kamar walda ko yanke.
Yawan gwaje-gwaje: Samfura guda biyu na bututu da aka ɗauka daga kowane ƙuri'a guda 500 ko juzu'insa, ko samfuran birgima guda biyu waɗanda aka ɗauko daga kowane ƙuri'a na daidai adadin kayan birgima.
Hanyoyin gwaji: Hanyoyi da ayyuka da suka shafi nazarin sinadarai za su kasance daidai da Hanyoyin Gwaji, Ayyuka, da Kalmomi A751.
| Abubuwan Bukatun Sinadarai,% | |||
| Abun ciki | Darasi C | ||
| Binciken Zafi | Binciken Samfura | ||
| C (Carbon)A | max | 0.23 | 0.27 |
| Mn (Manganese)A | max | 1.35 | 1.40 |
| P (phosphorus) | max | 0.035 | 0.045 |
| S (sulfur) | max | 0.035 | 0.045 |
| Ku (Copper)B | min | 0.20 | 0.18 |
| AGa kowane raguwar maki 0.01 da ke ƙasa da ƙayyadaddun matsakaicin ƙima don carbon, an ba da izinin haɓaka maki 0.06 sama da matsakaicin ƙayyadaddun don manganese, har zuwa matsakaicin 1.50 % ta nazarin zafi da 1.60 % nazarin samfurin. Blf ƙarfe mai ƙunshe da tagulla an ƙayyade a cikin tsarin siye. | |||
Samfuran tensile za su bi ka'idodin da ake buƙata na Hanyoyin Gwaji da Ma'anar A370, Shafi A2.
| Bukatun tensile | ||
| Jerin | Darasi C | |
| Ƙarfin ɗaure, min | psi | 62,000 |
| MPa | 425 | |
| Ƙarfin bayarwa, min | psi | 50,000 |
| MPa | 345 | |
| Tsawaita cikin inci 2 (50 mm), min,C | % | 21B |
| BYana shafi ƙayyadadden kauri na bango (t) daidai ko sama da 0.120 in. [3.05mm].Don ƙayyadadden ƙayyadadden kauri na bango, mafi ƙarancin ƙimar haɓakawa za ta kasance ta yarjejeniya tare da masana'anta. CMatsakaicin ƙimar tsawo da aka ƙayyade yana aiki ne kawai ga gwaje-gwajen da aka yi kafin jigilar bututun. | ||
A cikin gwaji, ana sanya samfurin a cikin injin gwajin juzu'i sannan a miƙe a hankali har sai ya karye.A duk lokacin da ake aiwatarwa, injin gwajin yana rubuta bayanan damuwa da damuwa, don haka yana haifar da lanƙwasa-ƙwaƙƙwa.Wannan juzu'i yana ba mu damar ganin tsarin gaba ɗaya daga nakasar roba zuwa nakasar filastik don karyewa, kuma don samun ƙarfin yawan amfanin ƙasa, ƙarfin ƙarfi da bayanan tsawo.
Tsawon Samfura: Tsawon samfurin da ake amfani da shi don gwaji bazai zama ƙasa da 2 1/2 a (65 mm).
Gwajin gwaji: Ba tare da tsagewa ko karaya ba, samfurin yana daidaitawa tsakanin faranti iri ɗaya har sai nisa tsakanin faranti bai kai darajar "H" da aka ƙididdige su ta hanyar wannan tsari:
H=(1+e)t/(e+t/D)
H = nisa tsakanin faranti masu lanƙwasa, a cikin. [mm],
e= nakasawa kowane tsayin raka'a (tsayawa don ƙimar ƙarfe da aka bayar, 0.07 don Grade B, da 0.06 don Grade C),
t= ƙayyadadden kauri na bangon bututu, a cikin. [mm],
D = ƙayyadaddun diamita na tubing, a cikin. [mm].
Mutuncitest: Ci gaba da daidaita samfurin har sai samfurin ya karye ko kuma sabanin bangon samfurin ya hadu.
Kasawactsarin mulki: Bawon laminar ko raunin abu da aka samu a duk lokacin gwajin lallashi zai zama dalilai na ƙin yarda.
Ana samun gwajin walƙiya don bututu mai zagaye ≤ 254 mm (inci 10) a diamita, amma ba dole ba ne.
| Jerin | Iyakar | Lura |
| Diamita na Wuta (OD) | ≤48mm (1.9 in) | ± 0.5% |
| 50mm (2 in) | ± 0.75% | |
| Kaurin bango (T) | Ƙayyadadden kauri na bango | ≥90% |
| Tsawon (L) | ≤6.5m (22ft) | 6mm (1/4in) - +13mm (1/2in) |
| 6.5m (22ft) | -6mm (1/4in) - +19mm (3/4) | |
| Madaidaici | Tsawoyin suna cikin rukunin sarakuna (ft) | L/40 |
| Tsawon raka'o'in awo ne (m) | L/50 | |
| Haƙuri buƙatun don girma da alaka da zagaye tsarin karfe | ||
Ƙaddamar Ƙaddamarwa
Za a rarraba lahanin saman a matsayin lahani lokacin da zurfin lahani na saman ya kasance kamar sauran kaurin bangon bai wuce 90% na ƙayyadadden kauri na bango ba.
Alamomin da aka yi wa magani, ƙananan ƙuraje ko alamun birgima, ko ƙuƙumma masu zurfi ba a ɗaukar lahani idan ana iya cire su cikin ƙayyadadden ƙayyadadden kauri na bango.Waɗannan lahani na saman ba sa buƙatar cirewar dole.
Gyare-gyare
Za a cire lahani tare da kaurin bango har zuwa 33% na ƙayyadadden kauri ta hanyar yanke ko niƙa har sai an bayyana ƙarfe mara lahani.
Idan welding tack ya zama dole, za a yi amfani da tsarin walda rigar.
Bayan an sake gyarawa, za a cire ƙarfe da ya wuce kima don samun ƙasa mai santsi.
Sunan masana'anta.alama, ko alamar kasuwanci;ƙayyadaddun ƙayyadaddun bayanai (shekarar fitowar ba a buƙata ba);da harafin daraja.
Don tsarin bututu mai diamita na waje na 4 in [10 cm] ko ƙasa da haka, ana ba da izinin tantancewa a kan tambarin da aka makala amintacce zuwa kowane bututun.
Hakanan akwai zaɓi na yin amfani da lambobi azaman ƙarin hanyar ganowa, kuma ana ba da shawarar cewa barcode ɗin su kasance daidai da AIAG Standard B-1.
1. Ginin gini: Grade C karfe ne yawanci amfani da ginin gini inda tsarin goyon baya da ake bukata.Ana iya amfani da shi don manyan firam ɗin, ginin rufin, benaye, da bangon waje.
2. Ayyukan ababen more rayuwa: Don gadoji, tsarin alamar babbar hanya, da dogo don ba da tallafi da dorewa.
3. Kayayyakin masana'antu: a cikin masana'antun masana'antu da sauran wuraren masana'antu, ana iya amfani dashi don takalmin gyaran kafa, tsarin tsarawa, da ginshiƙai.
4. Tsarin makamashi mai sabuntawa: Ana kuma iya amfani da shi wajen gina iska da tsarin makamashin rana.
5. Kayan wasanni da kayan aiki: sifofi don wuraren wasanni kamar bleachers, maƙallan manufa, har ma da kayan aikin motsa jiki.
6. Injin noma: Ana iya amfani da shi don gina firam don injuna da wuraren ajiya.
Girman: Samar da diamita na waje da kauri na bango don tubing zagaye;samar da girman waje da kaurin bango don bututu mai murabba'i da rectangular.
YawanFaɗi jimlar tsawon (ƙafa ko mita) ko adadin tsayin kowane mutum da ake buƙata.
Tsawon: Nuna nau'in tsayin da ake buƙata - bazuwar, yawa, ko takamaiman.
Bayanan Bayani na ASTM 500: Bayar da shekara ta buga ƙayyadaddun ASTM 500 da aka ambata.
Daraja: Nuna darajar kayan (B, C, ko D).
Zayyana Abu: Nuna cewa kayan aikin bututu ne mai sanyi.
Hanyar sarrafawa: Bayyana ko bututun ba shi da sumul ko waldi.
Ƙarshen Amfani: Bayyana abin da ake nufi da amfani da bututu
Bukatun Musamman: Lissafin wasu buƙatun da ƙayyadaddun ƙayyadaddun bayanai ba su cika ba.
Mu ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun ƙwararrun masana'anta ce kuma masu siyarwa daga China, har ila yau, ƙwararrun ƙwararrun bututun ƙarfe mara nauyi, suna ba ku nau'ikan mafita na bututun ƙarfe!
Idan kuna son ƙarin sani game da samfuran bututun ƙarfe, zaku iya tuntuɓar mu!
