Hom Thiab Cov Qauv Ntawm Cov Hlau, Thiab Dab Tsi yog Plaub Qhov Loj Ntawm Cov Hlau?

1,Dab tsi yog hom hlau

1. 40Cr, 42CrMo, thiab lwm yam .: Hais txog alloy structural steel, uas muaj zoo heev high-temperature zog thiab qaug zog tsis kam, thiab feem ntau yog siv los tsim cov khoom tseem ceeb ntawm cov khoom siv tshuab loj.Cov qauv hlau thoob ntiaj teb ASTM A3 yog tus qauv Asmeskas cov qauv zoo tib yam carbon structural steel, uas muaj cov khoom siv nruab nrab thiab feem ntau siv rau hauv kev tsim cov khoom siv zoo tib yam.

2. Cov hlau tseem ceeb muaj xws li cov pa roj carbon tshwj xeeb steel, cov cuab yeej carbon steel, carbon caij nplooj ntoos hlav steel, alloy caij nplooj ntoos hlav steel, alloy structural steel, pob bearing steel, alloy cuab yeej steel, siab alloy cuab yeej steel, high-speed cuab yeej steel, stainless hlau. , kub-resistant steel, raws li zoo raws li high-temperature alloys, precision alloys, thiab electrothermal alloys.

3. E tus nqi: 26 rau cov qauv dav dav thiab cov uas muaj a, 44 rau cov uas muaj b, thiab 24 rau cov uas muaj c.Txhua qhov ntev yog nyob rau hauv millimeters.Hlau ntev qhov ntev yog hais txog qhov loj tshaj plaws ntawm ntau hom hlau, nrog rau qhov ntev, qhov dav, qhov siab, txoj kab uas hla, vojvoog, txoj kab uas hla, sab hauv, thiab phab ntsa thickness.

4. Hlau feem ntau muab faib ua plaub pawg: profiles, daim hlau, cov khoom siv hauv tsev, thiab cov kav dej.Cov ntaub ntawv ntawm cov ntaub ntawv thiab daim hlau feem ntau yog cais raws li Q235B, Q345B, thiab Q355B, thaum lub ntsiab ntawm cov khoom siv hauv tsev yog HRB400E, thiab cov khoom siv ntawm cov kav dej kuj tseem yog Q235B.

Cov hom profiles muaj xws li H-shaped steel, I-shaped steel, channel steel, thiab lub kaum sab xis steel.

5. Cov hlau tshwj xeeb: yog hais txog cov hlau tshwj xeeb uas siv rau hauv ntau yam kev lag luam, xws li automotive steel, agricultural machinery steel, aviation steel, mechanical manufacturing steel, heating furnace steel, hluav taws xob hlau, vuam hlau, thiab lwm yam. specifications ntawm txawv welded yeeb nkab khoom kuj txawv, feem ntau qhia nyob rau hauv nominal txoj kab uas hla.

2, Yuav ua li cas kom paub qhov txawv ntawm hom thiab cov qauv ntawm cov hlau

1. Raws li kev siv thiab kev xav tau sib txawv, cov hlau tuaj yeem muab faib ua ntau hom thiab qauv.Cov pa roj carbon steel cais los ntawm cov tshuaj muaj pes tsawg leeg: Hlau nrog cov ntsiab lus carbon ntawm 008% thiab 11%, feem ntau yog siv rau kev tsim khoom siv tshuab, lub log, lem, thiab lwm yam.

2. Kev piav qhia ntawm qib steel sawv cev txoj hauv kev hauv Suav teb: 1. Carbon structural steel yog tsim los ntawm Q + tus lej + cov cim qib zoo + deoxygenation qauv cim.Nws qib steel yog prefixed nrog "Q", sawv cev rau cov ntsiab lus ntawm cov hlau, thiab cov lej hauv qab no sawv cev rau tus nqi taw tes, hauv MPa.Piv txwv li, Q235 sawv cev rau yield point (σ s) 23 MPa carbon structural steel.

3. Hlau muab faib ua plaub hom: profiles, daim hlau, cov khoom siv hauv tsev, thiab cov kav dej.Ntawm lawv, cov ntaub ntawv thiab daim hlau tuaj yeem muab faib ua Q235B, Q345B, thiab Q355B, thaum cov khoom siv hauv tsev yog HRB400E thiab cov kav dej yog Q235B.Cov hom profiles tuaj yeem muab faib ua H-shaped steel, I-shaped steel, thiab lwm yam.

4. Forged hlau;Cam khwb cia hlau;Kub dov steel;Cold drawn hlau.Hlau cais los ntawm metallographic qauv hauv lub xeev annealed: ① hypoeutecoid steel (ferrite + pearlite);② Eutectoid steel (pearlite);③ Hlau nag los ntawm eutectic steel (pearlite + cementite);④ Lainitic steel (pearlite + cementite).

5. Cold formed steel: ib hom hlau tsim los ntawm txias dabtsi yog khoov steel lossis steel strips.High quality profiles: Zoo zoo round steel, square steel, ca steel, hexagonal steel, thiab lwm yam. b.Daim ntawv hlau;Nyias steel phaj: Ib lub phaj steel nrog lub thickness ntawm 4 millimeters los yog tsawg dua.Daim hlau nruab nrab thiab tuab: steel phaj nrog lub thickness ntau dua 4 millimeters.

6. Tus lej sawv cev rau tus nqi taw tes, piv txwv li, Q275 sawv cev rau qhov taw tes tawm ntawm 275Mpa.Yog tias cov ntawv A, B, C, thiab D raug cim tom qab qib, nws qhia tau hais tias qib zoo ntawm cov hlau txawv, thiab cov nyiaj S thiab P txo qis zuj zus, thaum cov hlau zoo nce ntxiv.