Bututun Karfe Mai Walƙiya Mai Karfe Don Ƙarfi da Inganci Mara Alaƙa ASTM A252
Gabatar da:
Idan ana maganar samar da ababen more rayuwa, tsarin bututun mai muhimmin bangare ne wanda ke taka muhimmiyar rawa a masana'antu daban-daban. Amfani da kayan aiki da dabarun da suka dace wajen gina bututu yana tabbatar da dorewa, ƙarfi da aminci, da kumabututun ƙarfe mai karkace ASTM A252yana kan gaba a wannan ci gaban fasaha. A cikin wannan shafin yanar gizo, za mu yi nazari sosai kan halaye da fa'idodin waɗannan bututun masu ban mamaki waɗanda suka zama muhimmin ɓangare na ayyukan gine-gine na zamani.
Kayayyakin Inji na Bututun SSAW
| matakin ƙarfe | mafi ƙarancin ƙarfin yawan amfanin ƙasa | mafi ƙarancin ƙarfin tensile | Mafi ƙarancin tsawaitawa |
| B | 245 | 415 | 23 |
| X42 | 290 | 415 | 23 |
| X46 | 320 | 435 | 22 |
| X52 | 360 | 460 | 21 |
| X56 | 390 | 490 | 19 |
| X60 | 415 | 520 | 18 |
| X65 | 450 | 535 | 18 |
| X70 | 485 | 570 | 17 |
Sinadarin Sinadarin Bututun SSAW
| matakin ƙarfe | C | Mn | P | S | V+Nb+Ti |
| Matsakaicin % | Matsakaicin % | Matsakaicin % | Matsakaicin % | Matsakaicin % | |
| B | 0.26 | 1.2 | 0.03 | 0.03 | 0.15 |
| X42 | 0.26 | 1.3 | 0.03 | 0.03 | 0.15 |
| X46 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X52 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X56 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X60 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
| X65 | 0.26 | 1.45 | 0.03 | 0.03 | 0.15 |
| X70 | 0.26 | 1.65 | 0.03 | 0.03 | 0.15 |
Juriyar Tsarin Layi na Bututun SSAW
| Juriyar Geometric | ||||||||||
| diamita na waje | Kauri a bango | madaidaiciya | rashin zagaye | taro | Tsawon dutsen walda mafi girma | |||||
| D | T | |||||||||
| ≤1422mm | −1422mm | <15mm | ≥15mm | ƙarshen bututu 1.5m | cikakken tsayi | jikin bututu | ƙarshen bututu | T≤13mm | T> 13mm | |
| ±0.5% | kamar yadda aka amince | ±10% | ±1.5mm | 3.2mm | 0.2% L | 0.020D | 0.015D | '+10% | 3.5mm | 4.8mm |
Gwajin Hydrostatic
Ƙarfi da Dorewa Mara Alaƙa:
ASTM A252bututun ƙarfe mai karkaceAn yi shi ne da ƙarfe mai inganci wanda ya cika ƙa'idodin ASTM A252. Ma'aunin yana tabbatar da ƙarfi da dorewar bututu, wanda hakan ya sa suka dace da aikace-aikace iri-iri, ciki har da watsa mai da iskar gas, ginshiƙai masu tarin yawa da kuma kayayyakin ruwa. Walda mai karkace yana ƙara ƙarfi da juriyar bututu ga ƙarfin waje, yana tabbatar da cewa suna iya jure yanayin matsin lamba mai yawa da kuma yanayi mai tsauri.
Inganci mafi kyau da kuma inganci mai kyau:
Ɗaya daga cikin manyan fa'idodin bututun ƙarfe mai walƙiya mai siffar ASTM A252 shine ingantaccen aikinsa wajen shigarwa da amfani. Tsarinsa na karkace yana da sauƙin ɗauka da sarrafawa saboda sauƙin nauyinsa idan aka kwatanta da sauran kayan bututu. Bugu da ƙari, sassaucin waɗannan bututun yana sauƙaƙa lanƙwasawa, yana rage buƙatun kayan haɗi da haɗin gwiwa. Ba wai kawai yana adana lokaci ba, har ma yana rage farashin shigarwa sosai, wanda hakan ya sa wannan nau'in bututun ya zama mafita mai araha ga ayyuka daban-daban.
Inganta juriyar tsatsa:
Tsatsa babbar matsala ce a tsarin bututu, musamman a masana'antu da ke sarrafa sinadarai da abubuwan da ke lalata muhalli. Ma'aunin ASTM A252 yana tabbatar da cewa bututun ƙarfe masu lanƙwasa masu zagaye suna nuna kyakkyawan juriya ga tsatsa. Waɗannan bututun suna da rufin kariya kamar epoxy ko zinc waɗanda ke aiki a matsayin shinge ga abubuwan da ke lalata muhalli, suna tsawaita tsawon lokacin aikinsu da kuma rage farashin gyarawa. Wannan fasalin yana da amfani musamman a aikace-aikacen ƙarƙashin ƙasa ko na ƙasashen waje inda bututu ke fuskantar mawuyacin yanayi na muhalli.
Ƙarin ƙarfin ɗaukar kaya:
Wani muhimmin siffa ta bututun ƙarfe mai walƙiya mai siffar ASTM A252 shine ƙarfinsa mai kyau na ɗaukar kaya. Fasahar walda mai siffar karkace da ake amfani da ita a cikin tsarin kera tana ƙara ƙarfin bututun da ikon jure nauyi mai yawa. Ko ana amfani da shi a ginin gadoji, tushe na gini ko bututun ƙarƙashin ƙasa, waɗannan bututun suna ba da ingantaccen tsarin gini, suna rage haɗarin lalacewa da kuma tabbatar da amincin ayyukan ababen more rayuwa na dogon lokaci.
Dorewa a Muhalli:
A wannan zamani da kare muhalli ya zama ruwan dare a duniya, zabar kayan gini da suka dace yana da matukar muhimmanci. Bututun ƙarfe mai lanƙwasa ASTM A252 ya dace da tsarin gini mai dorewa saboda dorewarsa da kuma sake amfani da shi. Bututun suna da tsawon rai kuma ana iya sake yin amfani da su cikin sauƙi a ƙarshen rayuwarsu, wanda hakan ke rage buƙatar sabbin kayan haƙowa yayin da ake rage sharar gida da hayakin carbon.
A ƙarshe:
Bututun ƙarfe mai walƙiya mai karkace ASTM A252 ya kawo sauyi a masana'antar bututun tare da ƙarfinsa, juriyarsa da kuma ingancinsa na farashi mai kyau. Waɗannan bututun sun cika ko sun wuce ƙa'idodin masana'antu, wanda hakan ya sanya su zama zaɓi na farko a masana'antu da yawa. Kyakkyawan ƙarfin ɗaukar kaya da juriyar tsatsa yana tabbatar da ci gaban ayyukan ababen more rayuwa mai ɗorewa da kuma ba da gudummawa ga ci gaban masana'antar duniya. Ta hanyar amfani da waɗannan bututun, ayyukan gini na iya inganta inganci, rage farashi da kuma tabbatar da aminci na dogon lokaci yayin da suke bin dorewar muhalli.
