Dab tsi yog cov kev cai tshwj xeeb ntawm stamping tuag steel?
Ua ntej ntawm tag nrho cov, peb yuav tsum paub hais tias lub stamping tuag ua hauj lwm los tiv thaiv kev cuam tshuam, kev co, kev sib txhuam, kev kub siab thiab tensile, dabtsi yog khoov thiab torsional loads, thiab txawm nyob rau hauv lub kub kub (xws li txias extrusion), kev ua hauj lwm tej yam kev mob yog complex, nquag mus hnav, qaug zog, tawg, deformation thiab lwm yam tshwm sim. Los ntawm no, peb yuav tsum paub tias qhov yuav tsum tau muaj rau cov khoom siv ntawm stamping tuag yog siab dua li lwm yam kev tuag. Tau kawg, vim muaj qhov sib txawv ntawm kev ua haujlwm ntawm lub stamping tuag, qhov kev ua tau zoo ntawm cov khoom siv kuj txawv.
1) Punching tuag cov khoom yuav tsum tau: rau lub phaj xuas nrig ntaus tuag ua hauj lwm qhov chaw ntawm cov khoom yuav tsum muaj siab hnav tsis kam thiab hardness, thiab rau cov tuab phaj punching tuag ntxiv rau qhov yuav tsum tau muaj siab hnav tsis kam, compressive yield point, thiaj li yuav tiv thaiv cov pwm los ntawm kev tawg lossis tawg, Longtuo hlau yuav tsum muaj kev puas tsuaj siab, siab khoov lub zog thiab toughness.
2) Cov kev cai ntawm cov khoom siv sib sib zog nqus nqus: cov khoom siv ntawm qhov chaw ua haujlwm ntawm qhov tuag yuav tsum muaj kev tiv thaiv zoo (tiv thaiv tom), hnav tsis kam thiab hardness, qee lub zog thiab tawv, thiab kev ua haujlwm zoo dua, thiab qhov deformation ntawm kev kho cua sov yuav tsum yog me me.
3) Qhov yuav tsum tau ua ntawm cov khoom siv txias extrusion tuag: qhov chaw ua haujlwm ntawm cov pwm yuav tsum muaj lub zog siab thiab tawv, siab hnav tsis kam, thiab kom tsis txhob cuam tshuam kev puas tsuaj, nws kuj yuav tsum muaj qee yam toughness. Vim hais tias lub extrusion yuav ua rau ib tug loj kub nce, nws yuav tsum feem ntau muaj ib tug tej yam tshav kub kuj qaug zog thiab thermal hardness.
Dab tsi yog hom stamping tuag cov ntaub ntawv thiab lawv cov yam ntxwv
Cov khoom siv rau kev tsim khoom stamping tuag yog steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloy, qis melting point alloy, aluminium bronze, polymer cov ntaub ntawv thiab lwm yam. Tam sim no, feem ntau ntawm cov khoom siv rau kev tsim stamping tuag yog ua los ntawm cov hlau, thiab cov khoom siv feem ntau siv rau pwm ua haujlwm yog: cov cuab yeej steel, cov hlau tsis tshua muaj hlau, cov pa roj carbon siab thiab siab chromium lossis nruab nrab chromium cuab yeej steel, nruab nrab. carbon alloy steel, high-speed steel, matrix steel thiab cemented carbide, steel-bonded cemented carbide thiab lwm yam.
Cov cuab yeej carbon steel: Feem ntau siv cov cuab yeej carbon steel hauv pwm yog T8A cov cuab yeej steel, T10A, thiab lwm yam, uas muaj qhov zoo ntawm kev ua haujlwm zoo thiab pheej yig tus nqi. Txawm li cas los xij, qhov hardenability thiab liab hardness tsis zoo, qhov kev kho cua sov deformation yog loj, thiab lub peev xwm nqa tau tsawg.
Cov hlau tsis tshua muaj hlau: Cov hlau tsis tshua muaj hlau yog cov cuab yeej carbon hlau los ntawm kev ntxiv qhov tsim nyog ntawm cov ntsiab lus alloying. Piv nrog rau cov cuab yeej carbon steel, lub quenching deformation thiab tawg nyiam yog txo, lub hardenability ntawm cov hlau yog txhim kho, thiab hnav kuj zoo dua. Cov hlau tsis tshua muaj hlau siv rau kev tsim pwm yog CrWMn, 9Mn2V, 7CrSiMnMoV(code CH-1), 6CrNiSiMnMoV(code GD) thiab lwm yam.
Cov pa roj carbon ntau thiab siab chromium cov cuab yeej steel: feem ntau siv cov pa roj carbon ntau thiab cov cuab yeej chromium siab steel Cr12 tuag steel thiab Cr12MoV tuag steel, Cr12Mo1V1 (code D2), lawv muaj qhov zoo hardenability, hardenability thiab hnav tsis kam, kev kho cua sov deformation me me, rau siab. hnav tsis kam micro-deformation tuag steel, bearing muaj peev xwm thib ob tsuas yog high-speed steel. Txawm li cas los xij, kev sib cais ntawm carbide yog qhov hnyav, yog li nws yuav tsum tau ua kom rov ua dua (axial upsetting, radial rub) los hloov cov forging, txhawm rau txo qhov tsis sib xws ntawm carbide thiab txhim kho kev ua haujlwm.
High carbon nruab nrab chromium cuab yeej steel: siab carbon nruab nrab chromium cuab yeej steel siv rau pwm Cr4W2MoV, Cr6WV, Cr5MoV, thiab lwm yam., lawv cov ntsiab lus chromium yog tsawg, eutectic carbides tsawg, carbide faib yog uniform, kub kho deformation me me, nrog zoo hardenability. thiab dimensional stability. Piv nrog cov pa roj carbon siab thiab siab chromium steels nrog kev sib cais loj carbide, qhov kev ua tau zoo tuaj.
High-speed steel: High-speed steel muaj siab tshaj plaws hardness, hnav tsis kam thiab compressive zog ntawm tuag steel, thiab muaj ib tug siab load nqa peev xwm. Feem ntau siv rau hauv cov pwm yog W18Cr4V (code 8-4-1) thiab W6Mo5Cr4V3 high speed steel nrog tsawg tungsten cov ntsiab lus (code 6-5-4-2, US qib M2) thiab carbon thiab vanadium txo kev kub ceev steel 6W6Mo5Cr4V (code 6W6 los yog qis. -carbon M2) tsim los txhim kho toughness. High-speed steel kuj yuav tsum tau hloov kho kom txhim kho nws cov carbide faib.
Matrix steel: Ntxiv ib qho me me ntawm lwm cov ntsiab lus rau cov ntsiab lus ntawm high-speed steel, thiab tsim nyog nce lossis txo cov ntsiab lus carbon los txhim kho kev ua haujlwm ntawm cov hlau. Cov hlau zoo li no tau sau ua ke hu ua matrix steels. Lawv tsis tsuas yog muaj cov yam ntxwv ntawm high-ceev steel, nrog ib tug tej yam hnav tsis kam thiab hardness, thiab qaug zog zog thiab toughness yog zoo dua li high-ceev steel, rau siab zog thiab toughness txias ua hauj lwm tuag steel, cov khoom siv nqi qis dua siab. - ceev steel. Cov hlau matrix feem ntau siv hauv pwm yog 6Cr4W3Mo2VNb (code 65Nb), 7Cr7Mo2V2Si (code LD), 5Cr4Mo3SiMnVAL (code 012AL) thiab lwm yam.
Cemented carbide thiab steel-bonded cemented carbide: Lub hardness thiab hnav tsis kam ntawm cemented carbide yog siab dua li ntawm lwm yam hlau tuag, tab sis lub zog khoov thiab toughness tsis zoo. Cov tungsten carbide siv los ua pwm yog tungsten cobalt, thiab cov pwm uas muaj kev cuam tshuam me me thiab hnav tsis kam tuaj yeem xaiv nrog cov ntsiab lus qis cobalt. Rau cov pwm uas muaj kev cuam tshuam loj, tungsten carbide nrog cov ntsiab lus cobalt ntau dua tuaj yeem xaiv.
Steel-bonded cemented carbide: Nws yog ua los ntawm cov hmoov hlau nrog me me ntawm cov hmoov hlau alloying hmoov (xws li chromium, molybdenum, tungsten, vanadium, thiab lwm yam) ua ib phau ntawv khi, thiab sintered los ntawm hmoov metallurgy txoj kev nrog titanium carbide los yog tungsten carbide raws li lub caij nyuaj. Lub matrix ntawm steel-bonded cemented carbide yog hlau, uas overcomes lub shortcomings ntawm tsis zoo toughness thiab nyuaj ua ntawm cemented carbide, thiab yuav txiav, welded, forged thiab kub kho. Steel-bonded cemented carbide muaj ntau cov carbide, txawm hais tias qhov hardness thiab hnav tsis kam yog qis dua cemented carbide, tab sis tseem siab dua lwm cov hlau, tom qab quenching, tempering hardness tuaj yeem ncav cuag 68 ~ 73HRC.
