Cold mosebetsi shoela tšepe haholo-holo sebelisoa bakeng sa stamping, blanking, eaba ba etsa, kobeha, batang extrusion, batang ho taka, phofo metallurgy shoa, joalo-joalo E hloka phahameng thatafala, phahameng apara ho hanyetsa le toughness lekaneng. Ka kakaretso e arotsoe ka mekhahlelo e 'meli: mofuta o akaretsang le mofuta o khethehileng. Mohlala, mosebetsi o batang o sebelisoang ka kakaretso United States hangata o kenyelletsa limaraka tse 'ne tsa tšepe: 01, A2, D2, le D3. Papiso ea likhaolo tsa tšepe tsa tšepe ea tšepe ea tšepe ea alloy die steel tse sebelisoang linaheng tse fapaneng e bontšoa ho Lethathamo la 4. Ho ea ka tekanyetso ea Japane ea JIS, mefuta e ka sehloohong ea tšepe e sebetsang e batang e ka sebelisoang ke letoto la SK, ho kenyelletsa le letoto la SK. carbon tool steel, 8 SKD series alloy tool, le 9 SKHMO series, high-speed steels, bakeng sa kakaretso ea limaraka tsa tšepe tse 24. China's GB/T1299-2000 alloy tool steel standard e kenyelletsa kakaretso ea mefuta e 11 ea tšepe, e etsang letoto le batlang le feletse. Ka liphetoho tsa theknoloji ea ho sebetsa, lisebelisoa tse sebetsitsoeng le tlhokahalo ea hlobo, letoto la mantlha la mantlha ha le khone ho fihlela litlhoko. Japanese tšepe limilora le ka sehloohong sesebelisoa European le shoa tšepe baetsi ba tšepe e ntshetswa pele-morero o batang mosebetsi shoela tšepe, 'me butle-butle thehoa Reibelang serame shoa tšepe letoto la lihlooho tse, ntshetsopele ya tsena tse batang mosebetsi shoela litšepe e boetse ke tataiso ea ntshetsopele ya mosebetsi o batang shoela tšepe.
Low alloy air quenching batang mosebetsi shoe tšepe
Ka tsoelo-pele ea theknoloji ea phekolo ea mocheso, haholo-holo ts'ebeliso e pharaletseng ea theknoloji ea "vacuum quenching" indastering ea hlobo, e le ho fokotsa deformation ea quenching, litšepe tse ling tse tlaase-tlaase tse timang li-micro-deformation li entsoe lapeng le linaheng tse ling. Mofuta ona oa tšepe o hloka ho thatafala hantle le phekolo ea mocheso E na le deformation e nyenyane, matla a matle le ho tiea, 'me e na le khanyetso e itseng ea ho apara. Leha e le hore maemo a phahameng a alloy a batang a sebetsa ka tšepe (joalo ka D2, A2) e na le thata e thata, e na le alloy e ngata ebile e theko e boima. Ka hona, litšepe tse ling tse tlase tsa alloy micro-deformation li entsoe lapeng le kantle ho naha. Mofuta ona oa tšepe ka kakaretso o na le likarolo tsa alloy Cr le Mn alloy element ho ntlafatsa ho thatafala. Kakaretso ea likarolo tsa alloy ka kakaretso ke <5%. E loketse ho etsa likarolo tse nepahetseng ka lihlopha tse nyenyane tsa tlhahiso. Mefuta e rarahaneng. Likarolo tsa tšepe tse emelang li kenyelletsa A6 ho tloha United States, ACD37 ho tloha Hitachi Metals, G04 ho tloha Daido Special Steel, AKS3 ho tloha Aichi Steel, joalo-joalo tšepe ea Chinese GD, ka mor'a ho tima ka 900 ° C le mocheso ho 200 ° C, e ka boloka tekanyo e itseng. ea bolokoa austenite 'me o na le matla a matle, toughness le dimensional botsitso. E ka sebelisoa ho etsa litempe tse batang tse atisang ho robeha le ho robeha. Bophelo ba tšebeletso e phahameng.
Lelakabe tima tšepe hlobo
E le ho khutsufatsa potoloho ea tlhahiso ea hlobo, ho nolofatsa mokhoa oa ho phekola mocheso, ho boloka matla le ho fokotsa litšenyehelo tsa tlhahiso ea hlobo. Japane e thehile litšepe tse khethehileng tse batang bakeng sa litlhoko tsa ho tima malakabe. Tse tloaelehileng li kenyelletsa Aichi Steel's SX105V (7CrSiMnMoV), SX4 (Cr8), Hitachi Metal's HMD5, HMD1, Datong Special Steel Company's G05 tšepe, joalo-joalo China e hlahisitse 7Cr7SiMnMoV. Mofuta ona oa tšepe o ka sebelisoa ho futhumatsa lehare kapa likarolo tse ling tsa hlobo ho sebelisa sethunya sa spray sa oxyacetylene kapa li-heaters tse ling ka mor'a hore hlobo e sebelisoe ebe e pholile moeeng ebe e tima. Ka kakaretso, e ka sebelisoa ka ho toba ka mor'a ho tima. Ka lebaka la ts'ebetso ea eona e bonolo, e sebelisoa haholo Japane. Mofuta oa tšepe oa moemeli oa mofuta ona oa tšepe ke 7CrSiMnMoV, e nang le boima bo botle. Ha tšepe ea φ80mm e tingoa ka oli, boima bo bolelele ba 30mm ho tloha holimo bo ka fihla ho 60HRC. Phapang ea ho thatafala lipakeng tsa mantlha le bokaholimo ke 3HRC. Ha lelakabe le tima, Ka mor'a ho chesa pele ho 180 ~ 200 ° C le ho futhumatsa ho 900-1000 ° C bakeng sa ho tima ka sethunya sa spray, boima bo ka fihla ho feta 60HRC 'me ho ka fumanoa lera le thata ho feta 1.5mm.
High toughness, high wear resistance batang mosebetsi die steel
E le ho ntlafatsa ho thatafala ha mosebetsi o batang oa tšepe ea tšepe le ho fokotsa ho hanyetsa ha tšepe ea tšepe, lik'hamphani tse ling tse kholo tsa lihlahisoa tsa tšepe tse tsoang linaheng tse ling li 'nile tsa hlahisa letoto la litšepe tse batang tse nang le boima bo phahameng le bo phahameng ba ho apara. Mofuta ona oa tšepe ka kakaretso o na le hoo e ka bang 1% carbon le 8% Cr. Ka ho eketsoa ha Mo, V, Si le lisebelisoa tse ling tsa alloying, li-carbides tsa eona li ntle, li arolelitsoe ka mokhoa o lekanang, 'me boima ba eona bo phahame haholo ho feta ba mofuta oa tšepe ea Cr12, ha khanyetso ea eona ea ho apara e tšoana. . Boima ba bona, matla a ho feto-fetoha ha maemo, matla a mokhathala le ho robeha ha bona ho phahame, 'me botsitso ba bona bo khahlanong le ho halefa bo boetse bo phahame ho feta tšepe ea hlobo ea mofuta oa Crl2. Li loketse litebele tse lebelo le holimo le litebele tse nang le liteishene tse ngata. Mefuta ea tšepe e emelang mofuta ona oa tšepe ke DC53 ea Japane e nang le V content le CRU-WEAR e nang le V e phahameng. DC53 e tingoa ho 1020-1040 ° C mme boima bo ka fihla ho 62-63HRC ka mor'a hore moea o pholile. E ka halefa ka mocheso o tlase (180 ~ 200 ℃) le mocheso o phahameng oa mocheso (500 ~ 550 ℃), boima ba eona bo ka ba makhetlo a 1 ho feta D2, 'me ts'ebetso ea eona ea mokhathala e phahame ka 20% ho feta D2; ka mor'a hore CRU-WEAR e qhekelle le ho bilika, e ea kenngoa 'me e tiisetsoe ho 850-870 ℃. Ka tlase ho 30 ℃ / hora, e pholile ho 650 ℃ mme e lokollotsoe, boima bo ka fihla ho 225-255HB, mocheso o timang o ka khethoa ka mefuta ea 1020 ~ 1120 ℃, boima bo ka fihla ho 63HRC, bo halefisitsoe ho 480 ~ 570 ℃. ho maemo a ts'ebeliso, ka bobeli bo hlakileng Phello e thata, ho hanyetsa ho roala le ho ba thata ho feta D2.
Base steel (tshepe ya lebelo le phahameng)
Litšepe tsa lebelo le phahameng li 'nile tsa sebelisoa haholo linaheng tse ling ho etsa liforomo tse sebetsang ka thata, tse tšoarellang nako e telele ka lebaka la ho se mamelle ha tsona hantle le boima ba eona bo bofubelu, joalo ka tšepe e tloaelehileng ea Japane ea SKH51 (W6Mo5Cr4V2). E le ho ikamahanya le litlhoko tsa hlobo, ho thatafala hangata ho ntlafatsoa ka ho fokotsa mocheso oa ho tima, ho tima boima kapa ho fokotsa lik'habone ka tšepe e phahameng. Tšepe ea matrix e entsoe ka tšepe e lebelo le phahameng, 'me metsoako ea eona ea lik'hemik'hale e lekana le motsoako oa matrix oa tšepe ea lebelo le phahameng ka mor'a ho tima. Ka hona, palo ea li-carbide tse setseng ka mor'a ho tima e nyenyane ebile e ajoa ka mokhoa o ts'oanang, e leng se ntlafatsang haholo ho tiea ha tšepe ha ho bapisoa le tšepe e phahameng. United States le Japane li ile tsa ithuta litšepe tsa motheo tsa VascoMA, VascoMatrix1 le MOD2 mathoasong a lilemo tsa bo-1970. Haufinyane tjena, DRM1, DRM2, DRM3, joalo-joalo li entsoe. Ka kakaretso e sebelisoa bakeng sa hlobo ea mosebetsi o batang e hlokang ho tiea ho holimo le botsitso bo betere bo khahlanong le ho halefa. China e boetse e hlahisitse litšepe tse ling tsa motheo, tse kang 65Nb (65Cr4W3Mo2VNb), 65W8Cr4VTi, 65Cr5Mo3W2VSiTi le litšepe tse ling. Mofuta ona oa tšepe o na le matla a matle le ho tiea 'me o sebelisoa haholo ho extrusion e batang, ho phunya poleiti e teteaneng, mabili a roalang likhoele, maikutlo a shoa, hlooho e batang e shoa, joalo-joalo, 'me e ka sebelisoa ha extrusion e futhumetseng e shoa.
Powder metallurgy hlobo tšepe
LEDB-mofuta o phahameng oa motsoako o batang oa tšepe ea tšepe e hlahisoang ke mekhoa e tloaelehileng, haholo-holo thepa ea likarolo tse kholo, e na le li-carbides tse mahoashe tsa eutectic le kabo e sa lekaneng, e fokotsang ka botebo ho thata, ho sila le isotropy ea tšepe. Lilemong tsa morao tjena, lik'hamphani tse khōlō tse tsoang linaheng tse ling tse khethehileng tsa tšepe tse hlahisang lisebelisoa le tšepe ea shoa li tsepamisitse maikutlo ho ntshetsa pele letoto la tšepe ea phofo ea tšepe e phahameng le e phahameng ea alloy die steel, e leng se entseng hore ho be le tsoelo-pele e potlakileng ea mofuta ona oa tšepe. Ho sebelisa ts'ebetso ea metallurgy ea phofo, phofo ea atomized tšepe e pholile ka potlako 'me li-carbides tse entsoeng li ntle ebile li lekana, tse ntlafatsang haholo ho thatafala, ho sila le isotropy ea thepa ea hlobo. Ka lebaka la ts'ebetso ena e khethehileng ea tlhahiso, li-carbides li ntle ebile li tšoana, 'me ts'ebetso ea machina le ho sila e ntlafatsoa, ho lumella hore carbon e phahameng le vanadium e kenyelelitsoe tšepe, kahoo ho hlahisa letoto la mefuta e mecha ea tšepe. Mohlala, letoto la Japane la Datong's DEX (DEX40, DEX60, DEX80, joalo-joalo), letoto la Hitachi Metal's HAP, letoto la Fujikoshi's FAX, letoto la VANADIS la UDDEHOLM, letoto la ASP la Fora la Erasteel, le letoto la k'hamphani ea Amerika CRUCIBLE li ntse li nts'etsapele lisebelisoa tsa tšepe tsa tšepe ka potlako. . Ho theha letoto la litšepe tsa metallurgy tse kang CPMlV, CPM3V, CPMlOV, CPM15V, joalo-joalo, ho hanyetsa ha bona le ho tiea ha bona ho ntlafatsoa haholo ha ho bapisoa le lisebelisoa le tšepe ea die e entsoeng ka mekhoa e tloaelehileng.
Nako ea poso: Apr-02-2024