China ASTM A681 D7 Tool Steel Bar Mugadziri uye Supplier

D7 Tool Steel ndeye yakakwira kabhoni, yakakwira chromium mhepo yekuomesa simbi ine yakanakisa kupfeka kuramba.

Kuramba kupfeka uku kunonyanya kukonzerwa nekukwira kwayo kabhoni uye vanadium zvemukati, izvo zvinoumba huwandu hukuru hwakaoma vanadium carbide zvidimbu musimbi, nekuoma kwakaenzana ne80 kusvika 85 Rockwell C.

Ichi chivakwa chinoita kuti D7 chishandiso chesimbi chishande mukuramba kupfeka kana uchitsvedza uchisangana nemamwe masimbi uye uchisangana neakaoma uye akanyorova slurries ezvakaoma abrasive zvimedu zvakaita sejecha, pfuti inoputika media uye ceramics.

D7 chishandiso simbi inoshandiswa zvakanyanya, kunyanya kusanganisira zvidhinha mold linings, briquetting molds, pfuti inoputika midziyo linings, ceramic extrusion uye kugadzira maturusi, upfu compaction maturusi, kudhirowa kwakadzika kunofa, flattening rollers uye muchina chishandiso chekutungamira njanji, nezvimwe.

Mune aya mamiriro ekushandisa, iyo yekupfeka kuramba, kuomarara uye kuomarara kweD7 chishandiso simbi kunoshandiswa zvizere.

Mukutaura kwekupisa kwekupisa, kuoma kweD7 mudziyo simbi zvinoda matanho akadai preheating, austenitization (yakakwirira tembiricha) uye tempering.

Tembiricha yekudziya ndeye 300 ° F (149 ° C) yekunyanya kupfeka kuramba. Zvakare, kuitira kuomarara kwakanyanya, kushatisa kaviri kunogona kuitwa zvakare, kubata patembiricha iri pamusoro pe950 ° F (510 ° C) kwemaawa maviri uyezve kubata kwemamwe maawa maviri.

Mukutaura kwekucheka kushanda, kushanda kwekucheka kweD7 tool steel inenge 30-35% ye1% carbon steel. Izvi zvinoreva kuti maturusi akakodzera uye matekiniki anodiwa panguva yekugadzira machining kuve nechokwadi chemhando yakanaka yekugadzira uye kugona.

Kazhinji, D7 chishandiso simbi ndeyepamusoro-inoshanda kupfeka-inodzivirira chishandiso simbi inokodzera akasiyana ekushandisa mamiriro ayo anoda kumira kupfeka uye kukanganisa.

Iyo yakanakisa kupfeka kuramba, kuoma uye kuomarara, pamwe nekunaka kwekucheka processability, inoita kuti ishandiswe zvakanyanya mukugadzira maindasitiri.

D7 chishandiso simbi ndeyepamusoro-yemhando yepamusoro-kabhoni, yakakwira-chromium alloy chishandiso simbi inogara pachinzvimbo chakakosha mukugadzirwa kwemaindasitiri nekuda kwehunhu hwayo hwepanyama nemakemikari. Ichi chinyorwa chine chinangwa chekutsanangura zvakatemwa zveD7 chishandiso simbi uye mashandisiro ayo makuru.

Zvinhu zvikuru zveD7 Tool Steel

High kuoma uye yakasimba kupfeka kuramba: Mushure mekupisa kwakakodzera kurapwa, D7 simbi inogona kusvika yakanyanyisa kuomarara, ichipa yakanakisa kupfeka kuramba.

Hunhu uhu hunoitaD7 simbiyakanakisa munzvimbo dzekushanda dziri pasi pemitoro yakakwira uye nekumhanya-mhanya.

Impact resistance: Nekuda kwekuoma kwayo kwepamusoro uye kusimba kwakanaka, D7 chishandiso simbi ine yakanaka mhedzisiro yekupikisa uye inokwanisa kuchengetedza kurongeka kwechimiro kana ichikanganiswa nemasimba ekunze.

Corrosion resistance: D7 mudziyo simbi ine imwe huwandu hwechromium, iyo inoibvumira kuchengetedza kugadzikana kwakanaka uye kusimba mune dzimwe nzvimbo dzinoparadza.

Ndeupi musiyano pakati peD7 neD2 mudziyo simbi?

D7 mudziyo simbi uye D2 mudziyo simbi (inozivikanwawo seCr12MoV) maviri akasiyana maturusi simbi, imwe neimwe ine yakasarudzika zvivakwa uye mashandisirwo.

D7 Tool Steel ndeye yakakwira kabhoni, yakakwira chromium mhepo yekuomesa simbi ine yakanakisa kupfeka kuramba. Iyo yakakwira kabhoni uye vanadium zvirimo zvinoguma nenhamba huru yevanadium carbide zvidimbu zvakaoma musimbi, nekuoma kwakaenzana ne80 kusvika 85 Rockwell C.

Naizvozvo, inonyatso kurwisa kupfeka kunokonzerwa nekutsvedza kusangana nemamwe simbi uye yakaoma uye yakanyorova slurry kusangana neakaoma abrasive particles sejecha, pfuti inoputika media uye ceramics. Izvi zvinogadzira D7 chishandiso simbi yakakodzera kushandiswa kwakasiyana-siyana, kusanganisira zvidhinha mold linings, briquetting dies, shot blasting equipment linings, ceramic extrusion nekugadzira maturusi, poda compaction maturusi, kudhirowa kwakadzika kunofa, flattening rollers uye muchina gidhi redhiraivha.

D2 chishandiso simbi (Cr12MoV) zvakare yakakwira-kabhoni, yakakwira-chromium chishandiso simbi ine kuomarara kwakanyanya, kupfeka kuramba, corrosion kuramba uye deformation kuramba. Iyo kabhoni yemukati yakakwira se1.40% -1.60%, iyo inovandudza kuomarara kwayo uye kupfeka kuramba.

Panguva imwecheteyo, simbi inewo yakakwira chromium uye molybdenum yemukati, iyo inogona zvinobudirira kuvandudza kwayo ngura kuramba.

D2 chishandiso simbi inogona kuwana yakanakisa michina zvivakwa uye kuoma kuburikidza nekupisa kurapwa maitiro sekudzima uye kudziya, uye ine yakanaka machinability yekusangana akasiyana machining zvinodiwa. Zvinhu izvi zvinogadzira D2 mudziyo simbi inoshandiswa zvakanyanya mukugadzira zvikamu zvepamusoro-soro senge molds, maturusi ekucheka uye kuforoma kunofa.

D7 Chishandiso chesimbi yakatenderedza bhaa

Kuumbwa kwekemikari(chikamu chezhinji)(wt.%) che D7 tool simbi

ASTM A681-US
FED QQ-T-570-US
SAE J437-US
SAE J438-US
UNS T30407-US
AISI D7 Tool Steel-US

Smelting Option zve d7

1 EAF: Electric Arc Furnace

2 EAF + LF + VD: Yakanatswa-kunyungudutsa uye vacuum degassing

3 EAF + ESR: Electro Slag Remelting

4 EAF + PESR: inodzivirira mamiriro Electro Slag Remelting

5 VIM + PESR: Vacuum induction kunyunguduka

Kuumba Option yeD7 Steel

1 Hot rolling maitiro

2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Mafuta-hydraulic; Precision-forging

Kupisa-kurapa Sarudzo zve d7 simbi

1 +A: Yakanamirwa (yakazara / yakapfava / spheroidizing)

2 +N: Yakagadziridzwa

3 +NT: Yakajairwa uye yakapfava

4 + QT: Yakadzimwa uye yakadzikama (mvura / mafuta)

Suface Option cheTool Steel

1 Black Surface

2 Grounded: Bright but rough; Kwete nemazvo

3 Kugadzira ndiro: Kupenya uye nemazvo; Kavanga kanoshanduka

4 Kupepetwa/Kupindurwa: Kupenya uye nemazvo; Kavanga kanoshanduka

5 Yakapenya: Yakapenya zvikuru uye saizi chaiyo; Kwete kuchinja vanga

MACHHANICAL PROPERTIES OF TOOL simbi D7