JIS G 3454 STPG370 Bututun Karfe Mara Sumul na Carbon

Takaitaccen Bayani:

Daidaitacce: JIS G 3454;
Daraja: STPG 370;
Tsarin aiki: ba tare da matsala ba ko kuma ERW (walda mai juriya ga lantarki);
Girma: 10.5mm - 660.4mm (6A - 650A) (1/8B - 26B);
Tsawon: ≥ mita 4, ko tsawon da aka saba;
Ayyuka: yankewa, sarrafa ƙarshen bututu, fashewar harbi, marufi, shafi, da sauransu.
ambato: FOB, CFR da CIF suna da goyan baya;
Biyan kuɗi: T/T, L/C;
Ribobi: Masu sayar da bututun ƙarfe marasa sulke da masu hannun jari daga China.

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Menene Kayan Bututun STPG 370?

STPG 370 wani bututu ne mai ƙarancin carbon wanda aka ƙayyade a cikin ma'aunin JIS G 3454 na Japan.

STPG 370 yana da mafi ƙarancin ƙarfin tauri na 370 MPa da mafi ƙarancin ƙarfin fitarwa na 215 MPa.

Ana iya samar da STPG 370 a matsayin bututun ƙarfe marasa sulɓi ko bututun ƙarfe da aka haɗa ta amfani da tsarin walda mai juriya ga lantarki (ERW). Ya dace da amfani da shi a tsarin bututun matsi tare da yanayin zafi har zuwa 350°C.

Na gaba, za mu yi la'akari da STPG 370 daga hanyoyin masana'antu, abubuwan da suka shafi sinadarai, halayen injiniya, gwaje-gwajen matsin lamba na hydrostatic, gwajin da ba ya lalatawa, da kuma rufin galvanized.

Tsarin Masana'antu

Ana iya ƙera JIS G 3454 STPG 370 ta amfani dababu matsala or ERWtsarin kera kayayyaki, tare da hanyoyin kammalawa masu dacewa.

Alamar daraja	Alamar tsarin ƙera
	Tsarin kera bututu	Hanyar kammalawa
STPG370	Mara sumul: S Juriyar wutar lantarki: E	An gama da kyau: H An gama sanyi: C Kamar yadda juriyar lantarki ta welded: G

Ba shi da sumulza a iya raba shi musamman zuwa:

SH: Bututun ƙarfe mara shinge mai zafi;

SC: Bututun ƙarfe mara shinge wanda aka gama da sanyi;

ERWza a iya raba shi musamman zuwa:

EH: Bututun ƙarfe mai welded mai juriya ga lantarki mai zafi;

EC: Bututun ƙarfe mai juriya ga lantarki da aka gama da sanyi;

EG: Bututun ƙarfe mai juriya ga lantarki wanda aka haɗa da bututun ƙarfe banda bututun ƙarfe mai zafi da sanyi.

Sinadarin Sinadarai

JIS G 3454yana ba da damar ƙara abubuwan sinadarai waɗanda ba a cikin teburin ba.

Alamar daraja	C	Si	Mn	P	S
Alamar daraja	matsakaicin	matsakaicin	—	matsakaicin	matsakaicin
JIS G 3454 STPG 370	0.25%	0.35%	0.30-0.90%	0.040%	0.040%

STPG 370 ƙarfe ne mai ƙarancin carbon idan aka kwatanta da sinadaran da ke cikinsa. An ƙera sinadarin da ke cikinsa ne don a iya amfani da shi a yanayin da ba ya wuce 350°C, tare da ƙarfi, tauri, da juriya ga zafin jiki mai yawa.

Kayayyakin Inji

Alamar na maki	Ƙarfin tauri	Ma'aunin bayarwa ko tabbatar da damuwa	Ƙarawa minti, %
			Gwajin tensile
			Lamba ta 11 ko ta 12	Lamba ta 5	Lamba ta 4
	N/mm² (MPA)	N/mm² (MPA)	Hanyar gwajin tensile
	minti	minti	Daidai da ma'aunin bututu	Daidai zuwa ga bututun bututu	Daidai da ma'aunin bututu	Daidai zuwa ga bututun bututu
STPT370	370	215	30	25	28	23

Baya ga ƙarfin taurin, ƙarfin taurin, da tsayin da aka ambata a sama, akwai kuma gwajin lanƙwasawa da lanƙwasawa.

Gwajin Faɗin Ƙasa: Idan nisan da ke tsakanin faranti biyu ya kai tazarar da aka ƙayyade H, ba za a sami lahani ko tsagewa a saman bututun ƙarfe ba.

Lanƙwasawa: Ya kamata a lanƙwasa bututun a kusurwa 90° a radius na diamita na waje sau 6. Dole ne bangon bututun ya kasance babu lahani ko tsagewa.

Gwajin Hydrostatic ko Gwajin da Ba Ya Halastawa

Ana yin gwajin hydrostatic ko gwajin da ba zai lalata kowace bututun ƙarfe ba don duba duk wani lahani da ido ba zai iya gani ba.

Gwajin Hydrostatic

Dangane da matakin da aka tsara na kauri na bango na bututun ƙarfe, zaɓi ƙimar matsin lamba ta ruwa da ta dace, kiyaye ta na aƙalla daƙiƙa 5, sannan a duba ko bututun ƙarfe yana zubar da ruwa.

Kauri na bango mara iyaka	Lambar Jadawali: Sch
Kauri na bango mara iyaka	10	20	30	40	60	80
Mafi ƙarancin matsin lamba na gwajin hydraulic, Mpa	2.0	3.5	5.0	6.0	9.0	12

Za a iya duba jadawalin nauyin bututun ƙarfe na JIS G 3454 da jadawalin bututu ta danna hanyar haɗin da ke ƙasa:

· Jadawalin Nauyin Bututun Karfe na JIS G 3454

· jadawalin 10,jadawali na 20,jadawali 30,jadawali 40,jadawali 60, kumajadawali 80.

Gwajin da Ba Ya Lalatawa

Idan ana amfani da duba na'urar ultrasonic, ya kamata a dogara ne akan ƙa'ida mai tsauri fiye da siginar aji ta UD a cikin JIS G 0582.

Idan ana amfani da gwajin eddy current, ya kamata a dogara da shi akan ma'auni wanda ya fi tsauri fiye da siginar aji EY a cikin JIS G 0583.

An yi galvanized

A cikin JIS G 3454, ana kiran bututun ƙarfe marasa rufi.bututu baƙikuma ana kiran bututun ƙarfe na galvanizedfararen bututu.

Bututun fari - bututun ƙarfe na galvanized

Bututun fari: bututun ƙarfe mai galvanized

Baƙin bututu: bututun ƙarfe mara galvanized

Tsarin da ake bi wajen yin amfani da fararen bututu shine a yi amfani da bindiga ko kuma a tsakula bututun baƙar fata masu inganci don cire ƙazanta daga saman bututun ƙarfe sannan a haɗa su da zinc wanda ya dace da ƙa'idar JIS H 2107 aƙalla mataki na 1. Sauran batutuwa ana aiwatar da su ne bisa ga ƙa'idar JIS H 8641.

Ana duba halayen murfin zinc bisa ga buƙatun JIS H 0401, Mataki na 6.

game da Mu

Tun lokacin da aka kafa ta a shekarar 2014,Botop Karfeya zama babban mai samar da bututun ƙarfe na carbon a Arewacin China, wanda aka san shi da kyakkyawan sabis, kayayyaki masu inganci, da kuma cikakkun hanyoyin magance matsaloli.

Kamfanin yana bayar da nau'ikan bututun ƙarfe na carbon da kayayyaki masu alaƙa, gami da bututun ƙarfe na ERW, LSAW, da SSAW marasa sulɓi, da kuma cikakken jerin kayan haɗin bututu da flanges. Kayayyakinsa na musamman sun haɗa da ƙarfe masu inganci da ƙarfe marasa austenitic, waɗanda aka ƙera don biyan buƙatun ayyukan bututu daban-daban.