20 # kub dov steel ntawv

(1) Cov yam ntxwv Cov hlau belongs rau high-quality low-carbon steel, txias extruded, carburized thiab hardened steel. Cov hlau tsis muaj zog, zoo toughness, plasticity thiab weldability. Lub zog tensile yog 253-500MPa, thiab elongation yog ≥24%.
Cov khoom ntawm 20 yog qhov pib zoo ib yam li cov hlau 15, tab sis lub zog siab dua me ntsis. Siv: haum rau kev tsim cov khoom me me thiab nruab nrab carburizing thiab carbonitriding qhov chaw uas tsis tseem ceeb rau kev tsim tsheb, tsheb laij teb thiab kev tsim khoom siv dav dav, xws li cov khau khiab tes, lub tog raj kheej, lub tog raj kheej nrawm, lub zog kis tau tus mob thiab Camshafts ntawm cov tsheb laij teb, suspension equalizer shafts, equalizer sab hauv thiab sab nrauv bushings, thiab lwm yam.; siv los tsim ntau yam khoom siv uas tsis muaj kev ntxhov siab tab sis yuav tsum tau muaj zog toughness nyob rau hauv kub dov los yog normalized tej yam kev mob; Nyob rau hauv hnyav thiab nruab nrab machinery manufacturing Medium, xws li forged los yog nias khi rods, shackles, levers, tes tsho, clamps, thiab lwm yam. Nyob rau hauv lub chav turbine thiab boiler manufacturing kev lag luam, nws yog feem ntau siv rau cov kav dej, flanges, headers thiab ntau yam fasteners. ua hauj lwm nyob rau hauv tsis-corrosive xov xwm nrog ib tug siab ntawm ≤6N/square thiab kub ntawm ≤450 ℃; siv los ua crosses ntawm railways, locomotives thiab tsheb Castings xws li taub hau thiab pistons.
Normalizing tuaj yeem txhawb cov spheroidization ntawm cov hlau, kho qhov loj ntawm proeutectoid ferrite, thiab txhim kho qhov kev ua tau zoo ntawm qhov khoob tsawg dua 160HBS.
Cov txheej txheem ntawm cov hlau tuag qhov chaw yog: blanking → forging tuag → annealing → mechanical rough machining → txias extrusion molding → recrystallization annealing → mechanical finishing → carburizing → quenching, tempering → sib tsoo thiab polishing → sib dhos.
(2) Lub xeev xa thiab hardness Unheated lub xeev, hardness ≤156HBS.

Cov tshuaj muaj pes tsawg leeg ntawm tus qauv JB / T 6057-92 steel (mas feem, %)

Mechanical zog
(5) Theem kev hloov pauv kub (kwv yees tus nqi) Ac1 = 735 ℃, Ac3 = 855 ℃, Ar3 = 835 ℃, Ar1 = 680 ℃
(6) normalizing specification Qhov kub yog 920 ~ 950 ℃, thiab lub cub tawg yog cua txias. Lub hardness yog 131 ~ 156HBS.
(7) Specification rau softening kev kho mob ntawm txias pressed blanks Qhov kub yog 700 ~ 720 ℃, lub sij hawm tuav yog 8 ~ 15h, thiab cov cua txias yog 50 ~ 100 ℃ / / h, thiab kub poob mus rau 550 ~ 600 ℃ nrog rau qhov cub, thiab lub cub tawg yog cua txias.
Lub hardness ua ntej kho yog ≤143HBS, thiab hardness tom qab softening yog ≤131HBS.
(8) quenching specification kub 910 ℃ ± 10 ℃, txias nrog 10% NaCl brine.
(9) Ntsuas tawm lub zog fy = 245Mpa, elastic modulus E = 206Gpa, Poisson tus piv ν = 0.3.
(10) Lub zog shear yog 275 ~ 392MPa, lub zog tensile yog 253 ~ 500MPa, lub zog tawm los yog 275MPa, thiab elongation yog 25%.
(11) Qhov ntsuas kub tsuas yog 600-650 degrees, thiab lub sijhawm tuav yog 1-2h.

Peb cov kev pabcuam ntawm peb lub voj voog ncig:

1. Yog tias koj pom muaj teeb meem zoo tom qab tau txais cov khoom, koj tuaj yeem tiv tauj peb, peb yuav tswj xyuas thiab teb koj hauv 12 teev

2.Peb yog lub Hoobkas tsim khoom SS Round bar, muaj peev xwm tsim tau zoo tshaj plaws, kev tswj zoo tshaj plaws, Kev Pabcuam Zoo tshaj.

3.Tshuaj xyuas los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb ntawm SGS lossis ISO

4.100% QC tshuaj xyuas ua ntej Shipping.

Yog tias koj muaj lus nug, thov hu rau peb raws sijhawm.