Vim li cas kev xaiv hlau yog qhov ntev -Kev txiav txim siab ntev, tsis yog cov ntsiab lus ntawm kev yuav khoom
Thaum engineers xav txog ibTsav Iav Txhaj Pwm, xim feem ntau yog mus rau kab noj hniav geometry, txias layout, thiab gating zoo. Kev xaiv hlau tuaj yeem xav zoo li qhov nthuav dav kom xa mus rau tus tsim pwm. Hauv kev xyaum, kev xaiv steel txiav txim tsib yam tseem ceeb thoob plaws hauv tag nrho cov kev tsim khoom:
Pwm kev pab cuam lub neej - pes tsawg lub voj voog lub cuab yeej khiav ua ntej hnav lossis qaug zog rov kho dua
Dimensional stability nyob rau hauv cyclic load - seb tus hniav profile tuav nws cov duab hla ntau lab txhaj tshuaj
Nto tiav durability - ntev npaum li cas polished los yog textured nto tseem nyob rau hauv specification
Lub sijhawm tu thiab nqi - ntau npaum li cas cov cuab yeej xav tau kev saib xyuas thiab tus nqi cuam tshuam dab tsi
Compatibility nrog cov yas molded - seb cov hlau tiv thaiv corrosion los yog tshuaj tua kab mob los ntawm cov resin los yog nws cov additives
Tau txais qhov kev txiav txim siab no nyob rau theem tsim yog ib qho ntawm cov nqi ntau tshaj -cov kauj ruam tiv thaiv muaj txiaj ntsig. Ib txoj kev tshawb fawb 2020 luam tawm nyob rau hauvPhau ntawv Journal of Materials Processing Technologypom tias pwm hlau xaiv tsis sib haum - feem ntau nyob rau hauv - specification ntawm hardness rau abrasive resins - yog lub luag hauj lwm rau kwv yees li 28% ntawm unplanned tooling nqi nyob rau hauv ib pawg soj ntsuam ntawm 85 ntau lawm pwm cov kev pab cuam. Rau cov cuab yeej iav precision tshwj xeeb, qhov ntev ntev ntawm cov hniav iav yog nruj thiab cov khoom siv abrasive muaj ntau, qhov tshwm sim ntawm hauv qab - cov hlau tshwj xeeb yog ncaj qha thiab ntsuas tau.
Lub Ntsiab Pwm Steel Pawg thiab Yam Lawv Zoo Li Cas
P20 / 718 - Ua ntej-Hardened, zoo machinability, nruab nrab lub neej
P20 yog ib qho ntawm feem ntau siv pwm steels thoob ntiaj teb, muab khoom ua ntej-hardened ntawm kwv yees li HRC 30–36. Cov pwm tuaj yeem raug machined ncaj qha mus rau qhov kawg qhov ntev yam tsis muaj cov kauj ruam tom ntej hardening, uas txo cov sij hawm txhuas thiab cov nqi ua haujlwm.
Qhov twg P20 ua haujlwm zoo:
Tsawg-rau- cov cuab yeej ntim nruab nrab uas khiav tsis yog- cov thermoplastics abrasive (ABS, PP, PE, nylon unfilled)
Tus qauv thiab cov cuab yeej txuas txuas qhov chaw xa khoom ceev tseem ceeb tshaj qhov siab tshaj plaws lub neej pwm
Cov txheej txheem pwm loj hauv paus cov khoom uas hardness tsis yog qhov tseem ceeb
Qhov twg P20 tsis ua haujlwm:
Ib qhoTsav Iav Txhaj Pwmdaim ntawv thov khiav iav - puv lossis ntxhia - cov resins puv - lub hardness tsis txaus thiab hnav pib tam sim ntawd
Siab - cov kev pab cuam ntim hom phiaj 800, 000+ cycles - P20 cov cuab yeej yuav tsum tau kho kom zoo dua ua ntej lub ntsiab lus no
Daim ntawv thov yuav tsum tau polished daim iav nto - P20's hardness txwv qhov ua tiav polish qib
Rau hom pwm no ua cov khoom siv los ntawm PA66 GF30 lossis cov khoom siv zoo sib xws, P20 tsuas yog cov khoom siv tsis raug. Nws yuav ua tau zoo ua ntej - tawm cov qauv tab sis yuav degrade zuj zus los ntawm kev khiav ntau lawm.
H13 - Thaum tshav kub kub-Treatable, High Hardness, Long Service Life
H13 yog tus qauv kev lag luam rau siab - ntim, thov txhaj tshuaj pwm. Nws yog kub-cov cuab yeej ua haujlwm steel uas yog ntxhib- ua haujlwm nyob rau hauv cov txheej txheem annealed thiab tom qab ntawd dhau los ntawm-hardened rau HRC 48-54 ua ntej kawg ua tiav. H13 yog qhov tseeb hauv paus ntsiab lus rau txhua qhov iav tivthaiv pwm ua cov khoom siv hluav taws xob ntawm cov khoom ntim ntau tshaj 500,000 txhaj tshuaj.
Lub zog ntawm H13:
High post-kev kho hardness - resists hnav los ntawm iav fibers, mineral fillers, thiab zoo li abrasive hais
Zoo heev toughness rau nws hardness chav kawm ntawv - resists qaug zog tawg ntawm nyias geometric nta xws li iav hniav hauv paus hniav
Zoo thermal qaug zog ua haujlwm - ua haujlwm rov ua cua sov thiab txias yam tsis muaj qhov tawg
Pwm lub neej ntawm 1,000,000+ txhaj tshuaj nrog kho kom raug; feem ntau 2,000,000+ rau qhov zoo- khaws cia siab - hardness tooling
Kev txwv:
Yuav tsum tau cua sov treatment tom qab ntxhib machining, ntxiv 2-4 lub lis piam mus rau lub sij hawm txhuas
Dimensional distortion thaum lub sij hawm kho cua sov yuav tsum tau npaj rau hauv machining sequence
Ntau nyuaj rau tshuab nyob rau hauv lub hardened mob - tiav kev khiav hauj lwm siv EDM thiab sib tsoo
Tsis yog qhov muaj zog corrosion-tiv taus - yuav tsum muaj kev tiv thaiv nto hauv qhov chaw ntub dej
H13 ntawm HRC 50-52 yog tus qauv specification rau lub cev muaj zog Gear Txhaj Pwm khiav engineering resins. Lub hardness resists hnav ntawm iav hniav flanks qhov uas qhov tseeb qhov tseeb ncaj qha txiav txim siab mesh zoo, thiab lub toughness resists tawg ntawm cov seem ntawm cov hniav.
S136 / 420SS - Stainless, Corrosion -Resistant
S136 thiab zoo sib xws stainless pwm steels (420- qib hloov kho rau pwm siv) muab kev tiv thaiv corrosion uas txheem cov cuab yeej steel tsis muaj. Lawv tuaj yeem raug kho kom sov rau HRC 50-52, sib txuas ua haujlwm nyuaj nrog xeb tsis kam.
Cov kev siv zoo tshaj plaws:
PVC ua - HCl roj tso tawm thaum lub sij hawm molding corrodes txheem steels sai heev
Kev kho mob thiab zaub mov-cov khoom tiv tauj uas yuav tsum tau muaj cov pwm tsis zoo
Pob tshab optical qhov yuav tsum tau daim iav polish tuav tsis muaj oxidation nto
Cov chaw ua haujlwm ntub dej uas tus qauv H13 yuav xav tau kev tiv thaiv kev kho mob tas li
Rau tus qauv pwm khiav nylon lossis POM, S136 feem ntau yog dhau -tshwj xeeb los ntawm kev pom kev xeb thiab ntxiv tus nqi yam tsis muaj txiaj ntsig zoo. Nws dhau los ua qhov kev xaiv zoo yog tias cov resin yog corrosive lossis qhov chaw ua haujlwm yog qhov ntub heev.
NAK80 / 2738 - Ua ntej-Hardened, Daim iav-Polish Muaj peev xwm
NAK80 yog npib tsib xee-aluminium- tooj liab alloy cuab yeej steel muab ua ntej- hardened ntawm HRC 40-43. Nws cov cuab yeej zoo tshaj plaws yog polishability - nws ua tiav A1-qib daim iav tiav (Ra 0.02µm lossis qis dua) yooj yim dua P20, tsis tas yuav tsum tau ua kom tawv.
Cov kev siv zoo tshaj plaws:
Cov khoom siv hluav taws xob siv hluav taws xob nrog cov khoom zoo nkauj zoo nkauj (Ntaus Plhaub Txhaj Mould daim ntawv thov)
Kev ntim cov tshuaj pleev ib ce thiab cov khoom kim heev uas ntog gloss yog thawj tus tsav tsheb tshwj xeeb
Txhua qhov chaw nyob qhov twg A-nto tiav yuav tsum tau khaws cia tsis tu ncua hla ntau lab lub voj voog
Mouse Plhaub Txhaj Pwm rau cov khoom lag luam zoo feem ntau qhia txog NAK80 rau cov kab noj hniav kom hniav zoo nkauj: lub hardness (HRC 40-43) yog qhov tsim nyog rau cov tsis yog - ABS abrasive, polishability yog superior rau P20, thiab tsis muaj kev kho cua sov yuav tsum tau ua. Rau siab - cov kev pab cuam ntim siab tshaj 800,000 txhaj tshuaj, H13 muaj lub neej ntev dua tab sis yuav tsum muaj kev txawj polishing ntau dua kom ua tiav qhov zoo ib yam.
8407 / SKD61 - Hwm H13 sib npaug
8407 (Uddeholm designation) thiab SKD61 (Japanese Industrial Standard) yog cov hwm zoo -qib sib npaug rau tus qauv H13, ua nrog cov hlau huv dua qub (tsawg dua tsis yog-cov hlau tsis suav nrog), zoo dua toughness ntawm siab hardness, thiab ntau dua kev kho cua sov cov lus teb nyob rau hauv cov hlaws loj{5}
Rau qhov xav tau lub cev muaj zog Gear Txhaj Pwm nrog lub hom phiaj ntawm lub neej ntau tshaj 2,000,000 txhaj tshuaj, lossis rau cov pwm pwm nrog cov yam ntxwv nyias nyias uas xav tau qhov zoo tshaj plaws muaj zog ntawm qhov siab hardness, 8407 lossis SKD61 yog qhov tsim nyog hloov kho los ntawm tus qauv H13.
Matching Steel rau Koj Daim Ntawv Thov
Tsav Iav Txhaj Pwm
Cov cuab yeej ua iav zoo li no - puv nylon lossis ntxhia - puv PBT muaj cov kev xav tau tshwj xeeb uas txhais ncaj qha rau hauv cov kev cai steel.
Lub iav fiber reinforcement nyob rau hauv cov ntaub ntawv xws li PA66 GF30 yog heev abrasive - nws zuj zus erodes kab noj hniav, feem ntau critically rau iav hniav flanks qhov loj qhov tseeb txiav txim zoo mesh. Lub cev muaj zog Gear Txhaj Pwm nrog qhov ntev ntev ntawm ± 0.02-0.05mm ntawm cov hniav profile tsis tuaj yeem zam kev hnav hnyav uas hloov qhov ntev tom qab 200,000 cycles.
Qhov tseeb specification rau aa iav cuab yeej khiav abrasive sau resins:
Kab noj hniav thiab core inserts: H13 ntawm HRC 50-52 yam tsawg kawg nkaus; 8407 / SKD61 qhov twg ntau lawm lub hom phiaj tshaj 2,000,000 txhaj tshuaj
Kev kho deg: TiN PVD txheej ntawm cov hniav kab noj hniav kom tiv thaiv kev hnav siab tshaj plaws hauv siab - iav- cov ntawv thov
Pwm puag: P20 los yog sib npaug - lub hauv paus tsis fim tib yam xav tau raws li cov kab noj hniav inserts
Kev qhia tshwj xeeb P20 rau lub cev muaj zog Gear Txhaj Pwm khiav puv engineering resins yog hom ntaub ntawv tsis ua haujlwm. Nws yuav zoo li tau txais hauv thawj 100,000 lub voj voog, tab sis cov hniav profile nrawm nrawm los ntawm qhov ntawd thiab dhau los ua qhov teeb meem zoo ua ntej pwm mus txog ib nrab ntawm nws lub neej.
Mouse Plhaub Txhaj Pwm
Mouse Plhaub Txhaj Pwm khiav ABS lossis ABS / PC sib xyaw muaj qhov sib txawv ntawm cov pwm pwm. ABS yog qhov tsawg- cov khoom siv puas tsuaj - kab noj hniav ntawm qhov chaw hnav yog qeeb qeeb dua li cov khoom siv puv. Qhov tseem ceeb uas yuav tsum tau muaj yog lub ntsej muag zoo nkauj zoo nkauj thiab nws lub sijhawm ua haujlwm ntev -.
Rau ibMouse Plhaub Txhaj Pwmnrog rau cov kev cai zoo nkauj zoo nkauj, NAK80 (pre- hardened HRC 40–43) yog qhov kev xaiv zoo tshaj plaws rau cov kev pab cuam txog li 800,000 txhaj tshuaj. Rau cov kev pab cuam ntev dua, H13 ntawm HRC 48-50 nrog hwm polishing muab lub neej zoo dua ntawm tus nqi ntawm kev xav tau ntau dua polishing.
Cov Khoom Ua Si Tsheb Yas Txhaj Pwm
Cov Khoom Ua Si Tsheb Yas Txhaj Pwm feem ntau ua haujlwm ABS lossis PP - ob qho tib si tsis yog - cov ntaub ntawv abrasive - ntawm qhov ntim siab. Qhov tseeb steel nyob ntawm qhov ntau lawm lub hom phiaj:
Txog li 600,000 txhaj tshuaj: P20 txaus thiab raug nqi -zoo
600,000 txog 1,500,000 txhaj tshuaj: H13 los ntawm hardened rau HRC 48-52 yog qhov tsim nyog peev
Saum 1,500,000 txhaj tshuaj: H13 lossis 8407 / SKD61 ntawm HRC 50–54 nrog rau saum npoo nitriding lossis PVD txheej
NtauCov Khoom Ua Si Tsheb Yas Txhaj Pwmkev ua haujlwm siv P20 rau kev pib siv cov khoom tshiab, hloov kho mus rau H13 yog tias cov khoom lag luam dhau los ntev - lub sijhawm ua lag luam ua tiav - txoj hauv kev ua kom tsis txhob dhau - nqis peev hauv cov cuab yeej nyuaj rau kev kwv yees qhov ntim tsis meej.
Cavity vs Core vs Pwm BaseWhy Cov Cheebtsam sib txawv siv cov hlau sib txawv
Ib qho kev txhaj tshuaj molding siv cov hlau sib txawv hauv cov cheeb tsam sib txawv, sib haum rau txhua cheeb tsam xav tau:
Cavity thiab core inserts: Lub precision Cheebtsam uas tsim ib feem. Cov ntsej muag no hnav siab tshaj plaws, xav tau qhov kev tiv thaiv nruj tshaj plaws, thiab yuav tsum ua kom tiav qhov chaw. Siv cov qib uas tsim nyog rau daim ntawv thov (H13 rau kev thov cov iav pwm pwm; NAK80 rau cov tsev kho kom zoo nkauj; P20 rau nruab nrab- ntim tsis yog- cov cuab yeej abrasive).
Pwm lub hauv paus daim hlau thiab cov khoom siv: Cov ncej uas tuav cov pwm ua ke. P20 los yog sib npaug ua ntej- cov hlau tawv yog feem ntau txaus - cov khoom no tsis tas yuav muaj qhov tawv tawv lossis hnav tsis kam ntawm cov kab noj hniav.
Ejector pins thiab sliders: H13 ntawm HRC 48-52 los yog siab tus pin steel. Cov ntsej muag cyclic mechanical loading thiab tiv tauj hnav ntawm txav interfaces.
Hnav daim hlau thiab coj cov bushings: H13 los yog sib npaug ntawm HRC 50-54 rau qhov siab tshaj plaws hnav tsis kam ntawm zawv zawg qhov chaw.
Siv H13 thoob plaws tag nrho cov pwm - suav nrog cov pwm hauv paus phaj - ntxiv cov nqi tseem ceeb yam tsis muaj txiaj ntsig kev ua haujlwm. Concentrating premium steel qhov twg nws tseem ceeb yog txoj hauv kev kom raug.
Abrasive Material Teeb meem
iav -cov resins ua rau cov nqi hnav ntawm cov pwm hlau ntau dua li qhov sib npaug tsis tau ua tiav. Cov ntaub ntawv pov thawj coj los kuaj pom tau hais tias iav - cov resins puv ua rau kwv yees li 10–30 × cov kab noj hniav ntau dua piv rau qhov tsis sib npaug ntawm tib lub hauv paus polymer.
Rau ib qho pwm no lossis lwm yam cuab yeej precision npaj los khiav cov ntaub ntawv no:
Cov ntsiab lus iav saum toj 20%: H13 ntawm HRC 50-54 yam tsawg kawg nkaus; xav txog TiN los yog TiAlN PVD txheej ntawm qhov siab tshaj plaws - hnav nto ( iav hniav flanks, qhov rooj qhov rooj)
Nplaim taws-cov ntaub ntawv retardant nrog halogenated additives: S136 stainless los yog H13 nrog corrosion-resistant nto kho
Mineral-cov ntaub ntawv sau: H13 nrog hardness ntawm qhov kawg ntawm qhov kev qhia tshwj xeeb
Lub cev muaj zog Gear Txhaj Mould uas underestimates hnav kev koom tes ntawm nws cov ntsiab lus muab tub lim yuav xav tau kab noj hniav hloov zoo ua ntej nws lub neej tsim - tus nqi uas deb tshaj tus nqi qis tshaj rau kev kho dua tshiab rau cov hlau tsim nyog txij thaum pib.
Tshaj tawm kev tshawb fawb ntawm Mould Steel Performance
Ib qho kev kawm hauvTribology International(2021) piv piv cov nqi ntawm P20, H13 (HRC 50), thiab S136 nyob rau hauv simulated txhaj tshuaj molding tiv tauj nrog iav - puv PA66. H13 pom qhov hnav tus nqi 73% qis dua P20; qhov no ncaj qha txhais mus rau lub neej ntev ntawm lub cuab yeej thiab txo qhov seem drift hauv cov ntsiab lus ntawm cov cuab yeej.
Tshawb nrhiav hauvPhau ntawv Journal of Materials Processing Technology(2020) pom tias kab noj hniav nto roughness nce 3 × sai dua hauv P20 cov cuab yeej khiav GF30 PP piv rau H13 cov cuab yeej nyob rau hauv tib yam.
SPE daim ntawv ntsuam xyuas cov ntaub ntawv (2021) tau txheeb xyuas cov pwm ntxov ntxov hnav los ntawm hauv qab -cov ntaub ntawv tshwj xeeb steel hardness yog qhov thib ob feem ntau ua rau cov cuab yeej siv tsis tau npaj tseg, tom qab lub tshuab ua kom txias tsis txaus.
Txhim kho hlau rau ntawm lub cev muaj zog Gear Txhaj Pwm Khiav iav-Nylon puv
Ib lub tuam txhab kev lag luam automation tau khiav cov cuab yeej iav hauv P20 rau cov iav me me uas siv hauv cov actuator. Cov khoom siv yog PA66 GF30. Tom qab kwv yees li ntawm 180,000 cycles ntawm lub precision iav pwm uas tau tsim los rau 1,200,000, qhov kev tshuaj ntsuam xyuas pom tau hais tias iav lub suab txoj kab uas hla tau nce los ntawm 0.04mm - txaus los cuam tshuam mesh zoo thiab tsim suab nrov.
Pwm soj ntsuam xyuas qhov chaw hnav ntawm cov hniav flanks. Lub cev muaj zog Iav Txhaj Pwm kab noj hniav tau nyob rau hauv - tshwj xeeb rau cov iav ntsiab lus ntawm cov khoom.
Sunhingstones hloov cov kab noj hniav thiab cov core inserts nrog H13 ntawm HRC 52, nrog TiN PVD txheej ntawm cov hniav kab noj hniav.
Cov txiaj ntsig ntawm 500,000 lub voj voog ntawm cov khoom siv hloov pauv: lub suab kab sib txawv ntawm +0.005mm - tsawg dua 15% ntawm P20 hnav ntawm qhov sib npaug. Cov iav pwm tau kwv yees kom ncav cuag 1,500, 000+ cycles ua ntej kev kho dua tshiab - yooj yim tshaj li tsib xyoo - lub hom phiaj kev pab cuam. Tus nqi hloov pauv tau rov qab los nyob rau hauv yim lub hlis piv rau kev kho dua tshiab ntawm cov cuab yeej qub.
Steel Selection Ceev Reference
|
Daim ntawv thov |
Qib hlau |
Hardness |
Sau ntawv |
|
Tsav Iav Txhaj Pwm, abrasive resin |
H13 / 8407 |
HRC 50–54 |
PVD txheej tau pom zoo |
|
precision iav cuab yeej, unfilled resin |
H13 |
HRC 48–52 |
Txuj ntev -lub neej spec |
|
Mouse Plhaub Txhaj Pwm, kom zoo nkauj nto |
NWS 80/2738 |
HRC 40–43 |
Polishability kom zoo dua |
|
Mouse Plhaub Txhaj Pwm, siab ntim |
H13 |
HRC 48–50 |
Nrog hwm polishing |
|
Cov Khoom Ua Si Tsheb Yas Txhaj Pwm,<600k shots |
P20 / 718 |
HRC 30–36 |
Tus nqi - nkag tau zoo |
|
Toy Car Plastic Injection Mold, >600k swb |
H13 |
HRC 48–52 |
Los ntawm hardened |
|
PVC los yog corrosive resin |
S136/420 SWB |
HRC 50–52 |
Corrosion kuj |
F A Q
Q: Koj puas tuaj yeem tsim cov xov hauv xov ncaj qha?
A: Yog lawm- ntawm cov txheej txheem unscrewing los yog collapsible cores.
Q: Moulded threads vs. inserts- uas yog qhov muaj zog dua?
A: Inserts feem ntau yeej (feem ntau 2–3x hauv rub- tawm / torque).
Q: Dab tsi yog qhov zoo tshaj plaws rau siab - ntim ntim?
A: Collapsible cores los yog unscrewing rau ceev thiab zoo.
Q: Yuav ua li cas shrinkage thiab tolerances cuam tshuam cov xov?
A: Tseem ceeb- qauv nruj thiab ntsuas pwm steel kom raug.
Q: Tus nqi cuam tshuam?
A: Yooj yim molded yog pheej yig tshaj ua ntej; complex mechanisms los yog inserts tsa cov cuab yeej / kev ua haujlwm nqi tab sis xa tus nqi hauv kev ua tau zoo thiab kev ua haujlwm ntev.
Q: Tshaj tawm -pwm tapping ua tau?
A: Zoo heev rau prototypes / tsawg ntim; tsawg zoo tagnrho rau siab -precision los yog siab- ntim vim yog ntxiv zog thiab variability.
Q: Cov hlau twg kuv yuav tsum tau hais qhia rau lub Tsav Tsheb Tsav Tsheb Txhaj Pwm khiav iav- puv nylon?
A: H13 ntawm HRC 50–52 yog tus qauv specification rau hom pwm ua iav no - puv lossis ntxhia - puv engineering resins. P20's hardness (HRC 30–36) yog tsis txaus rau cov khoom abrasive ntawm ib qho tseem ceeb ntau lawm ntim. Rau iav tivthaiv pwm cov kev pab cuam lub hom phiaj siab tshaj 2,000,000 cycles los yog siv cov ntsiab lus iav siab (saum toj 30%), 8407 los yog SKD61 nrog TiN PVD txheej ntawm cov hniav kab noj hniav muab kev tiv thaiv ntau tshaj plaws.
Q: Puas yog P20 puas tsim nyog rau lub cev muaj zog Iav Txhaj Pwm?
A: P20 tuaj yeem siv rau hauv cov ntsiab lus pwm tsuas yog thaum cov khoom siv tsis tiav (tsis muaj iav lossis pob zeb ntxiv), qhov ntim ntau lawm qis dua 300,000-400,000 txhaj tshuaj, thiab qhov ntev ntev ntawm cov iav nta tso cai rau cov kab noj hniav me me degradation. Rau txhua lub cev muaj zog Gear Txhaj Pwm khiav cov khoom siv hluav taws xob, H13 yog qhov tseeb specification.
Q: Qhov kev xaiv steel cuam tshuam li cas rau tus nqi ntawm cov cuab yeej zoo li no?
A: H13 kab noj hniav inserts feem ntau raug nqi 25-45% ntau tshaj qhov sib npaug P20 ntxig rau aa iav cuab yeej, vim yog kev kho cua sov, lub sijhawm ua haujlwm ntev, thiab cov khoom siv raw khoom ntau dua. Txawm li cas los xij, cov cuab yeej H13 feem ntau kav ntev li 2–4 × ntev dua hauv cov ntawv thov abrasive, ua rau ib qho - tua tus nqi ntawm H13 cov cuab yeej qis dua P20 thoob plaws tag nrho lub neej tsim khoom ntawm Lub Tshuab Tsav Tsheb Txhaj Tshuaj Pwm.
C
Kuv siv NAK80 rau iav pwm?
NAK80 (HRC 40–43) tuaj yeem siv rau lub cev muaj zog Gear Txhaj Pwm khiav tsis muaj dej, qis- puas tsuaj ntawm cov ntim nruab nrab. Nws cov polishability zoo dua P20 yog qhov cuam tshuam yog tias cov iav iav muaj qhov yuav tsum tau ua kom zoo nkauj, tab sis rau cov khoom siv iav pwm khiav engineering resins, H13 qhov nyuaj dua yog cov cuab yeej tseem ceeb dua.
Q: Lub neej pwm txawv ntawm P20 thiab H13 yog dab tsi hauv daim ntawv thov iav pwm?
A: Nyob rau hauv cov pwm no khiav GF30 engineering resin, luam tawm cov ntaub ntawv hnav thiab cov kev paub dhau los tsis tu ncua qhia H13 ua tiav 4-6 × lub neej kab noj hniav ntev dua P20 ua ntej qhov ntev ntev ntawm cov iav nta tau tshaj. Qhov sib piv pes tsawg nyob ntawm cov ntsiab lus iav, ua haujlwm kub, thiab cov hniav profile geometry.
Q: Kuv tuaj yeem tau txais kev taw qhia ntawm steel specification rau qhov project tshiab?
A: Ib lub tuam txhab tsim nyog Tsav Iav Txhaj Pwm yuav tsum muab cov lus qhia tshwj xeeb steel qauv raws li ib feem ntawm DFM (Design for Manufacturability) txheej txheem - nrog rau qib, lub hom phiaj hardness, kev kho cua sov specification, thiab lub laj thawj. Ib lub tuam txhab muaj npe nrov iav tooling yuav muaj cov ntaub ntawv kev paub nrog cov qib steel sib txawv thoob plaws ntau daim ntawv thov cov khoom siv iav thiab tuaj yeem hais txog qhov tshwm sim tiag tiag.
Qhia txog txoj cai hlau ua ntej lub cuab yeej tsim
Kev xaiv hlau nyob rau hauv lub cev muaj zog Gear Txhaj Pwm, Mouse Plhaub Txhaj Pwm, lossis lwm yam kev txhaj tshuaj precision yog qhov kev txiav txim siab ib zaug thiab nyob nrog rau qhov kev pab cuam tag nrho lub neej. Hauv qab - kev qhia tshwj xeeb txhais tau hais tias hnav ntxov ntxov, tsis tau npaj kho dua tshiab, thiab kev cuam tshuam ntau lawm. Tshaj - qhia meej txhais tau tias them nyiaj rau kev ua haujlwm uas daim ntawv thov tsis xav tau.
Txoj cai xaiv - H13 rau kev thov, siab - ntim precision iav pwm daim ntawv thov; NAK80 los yog P20 rau cov tshuaj pleev ib ce los yog nruab nrab- ntim ua haujlwm - tau mus txog los ntawm kev ntsuam xyuas cov khoom, ntim, qhov xav tau ntawm qhov chaw, thiab lub hom phiaj ntawm kev ua haujlwm.
Ntawm Sunhingstones, steel specification yog ib feem ntawm peb cov txheej txheem DFM rau txhua lub iav pwm, Mouse Plhaub Txhaj Pwm, thiab Cov Khoom Ua Si Tsheb Yas Txhaj Mould project. Peb sau cov qib pom zoo, hardness, kev kho cua sov, thiab kev xav kom cov neeg siv khoom nkag siab raws nraim qhov lawv tau txais thiab vim li cas.
Cov ntawv nyeem thiab nyeem ntxiv
1.Roberts, GA et al. Tool Steels, 5th Edition. ASM International, 1998. https://www.asminternational.org/
2. Chen, X. et al. " Hnav tus cwj pwm ntawm P20 thiab H13 pwm steels hauv qab iav - puv PA66 txhaj tshuaj molding tej yam kev mob." Tribology International, Vol . 158, 2021. https://www.sciencedirect.com/journal/tribology-international
3. Zhang Y., et al. "Cov kab noj hniav degradation hauv P20 vs H13 khiav iav- puv PP." Phau ntawv Journal of Materials Processing Technology, Vol. 285, 2020. https://www.sciencedirect.com/journal/journal-of-cov ntaub ntawv{13}}processing{14}}technolog
