Blower Yas Tsev Pwm

Lub tsev yas ntawm lub tshuab ziab plaub hau, raws li cov tseem ceeb tiv thaiv thiab zoo nkauj ntawm tag nrho cov cuab yeej, yog lub luag hauj lwm rau kev tiv thaiv lub cev muaj zog, cua sov hlau, thiab lwm yam precision Cheebtsam. Nws kuj tseem yuav tsum tau coj mus rau hauv tus account qhov kev nplij siab ntawm kev tuav, siab - qhov kub thiab txias tsis kam, thiab kev zoo nkauj zoo nkauj, thaum ua kom haum rau cov khoom siv xws li cua inlets thiab khawm qhov. Qhov zoo ntawm cov yas vaj tse ncaj qha cuam tshuam rau cov neeg siv kev paub thiab kev lag luam kev sib tw ntawm cov khoom. Qhov siab -kev tsim khoom zoo ntawm lub tshuab ziab plaub hau yas yog qhov sib cais tsis tau los ntawm kev sib koom tes ntawm peb cov txheej txheem tseem ceeb: pwm tsim, pwm tsim, thiab txhaj tshuaj molding. Pwm tsim kom paub meej qhov tseeb ntawm qhov chaw, kev tsim cov txheej txheem lav qhov zoo ntawm kev siv, thiab kev txhaj tshuaj molding ua tiav cov txheej txheem tsim. Peb yam no yog kev sib koom ua ke thiab tsis muaj leej twg tuaj yeem ploj.

 

I. Cov ntsiab lus tseem ceeb ntawm Cov plaub hau tshuab yas vaj tsev pwm tsim

Pwm tsim yog qhov tseem ceeb ua ntej kom ntseeg tau qhov zoo ntawm lub plhaub yas ntawm lub tshuab plaub hau. Nws yuav tsum ua tib zoo ua raws li cov yam ntxwv tseem ceeb ntawm lub plhaub, uas yog "lub teeb yuag, tsis zoo li qub, siab -kub tsis kam, thiab ntau- qhov ua haujlwm". Lub hom phiaj yuav tsum yog ntawm ob qhov loj: cov khoom siv sib xws thiab cov qauv tsim, kom tsis txhob molding qhov tsis xws luag ua ntej thiab nteg lub hauv paus ruaj khov rau cov txheej txheem tom ntej thiab thev naus laus zis.

(1) Cov khoom sib xws

Nws yog ib qho tsim nyog kom ua tiav qhov sib txuam ntawm cov pwm thiab cov khoom siv yas ntawm lub plhaub. Tam sim no, kev lag luam feem ntau yog siv cov yas engineering xws li PC/ABS alloy, nplaim taws- ABS retardant, thiab cov nylon reinforced. Cov ntaub ntawv no muaj qhov zoo heev - qhov kub thiab txias (tuaj yeem ua haujlwm kub ntawm 100-120 degree), toughness, rigidity, thiab ua fluidity, thiab ua tau raws li UL 94 V-0 nplaim retardancy tus qauv. Lawv tuaj yeem ua tsis tau tsuas yog ua tau raws li qhov yuav tsum tau muaj qhov kub thiab txias nyob ze ntawm cov cua kub ntawm lub tshuab ziab plaub hau thiab cov txheej txheem lub zog uas yuav tsum tau ua thaum tuav, tab sis kuj ua kom pom qhov zoo thiab kev nyab xeeb ntawm rwb thaiv tsev.

Thaum lub sij hawm tsim qauv, nws yog ib qho tseem ceeb kom raug xam qhov shrinkage tus nqi ntawm cov yas xaiv (piv txwv li, shrinkage tus nqi ntawm PC / ABS yog 0.5% - 0.7%), thiab tsim nyog cia lub shrinkage nyiaj nyob rau hauv ua ke nrog nrog rau cov khoom. Qhov no tuaj yeem zam qhov tsis xws luag xws li qhov sib txawv ntawm qhov sib txawv, deformation, thiab shrinkage cov cim tom qab lub plhaub tau tsim, kom ntseeg tau tias lub plhaub haum haum rau lub cev muaj zog, cov nyees khawm, thiab lwm yam khoom, thiab lav qhov ua kom zoo los ntawm cov cua nkag thiab cov chaw nres nkoj.

Kev xaiv cov khoom siv lub cev yuav tsum coj mus rau hauv tus account ob qho tib si precision thiab kev pab cuam lub neej: rau nruab nrab thiab me batch ntau lawm, P20 pre- hardened steel tuaj yeem xaiv; rau loj- teev ntau lawm, H13 kub ua haujlwm hlau tau pom zoo thiab yuav tsum tau nitrided kom txhim kho qhov hnav tsis kam ntawm cov kab noj hniav thiab txuas cov pwm qhov kev pab cuam lub neej mus rau ntau tshaj 500,000 pwm.

(2) Kev tsim qauv tsim

Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj ntawm lub plhaub sab nrauv, xws li "tus kov thiab lub cev yog sib xyaw ua ke yam tsis muaj cov kab kos lossis cov kauj ruam sib txawv, thiab cov haujlwm ntawm lub qhov yog qhov tseeb", plaub cov qauv tseem ceeb tau ua kom zoo dua qub, thiab tus ntoo khaub lig- kev tshuaj xyuas DFM tau tsim.

1. Txoj kab sib faib:nruj me ntsis zam A- theem zoo li qhov chaw thiab tuav cov chaw tuav. Siv lub slanted insert / recessed core qauv kom txo tau cov kab cim, kauj ruam sib txawv, thiab flash, thaum kom ntseeg tau tias ob qho tib si tsos thiab du qhib thiab kaw.

2. Kub khiav thiab rooj vag:nyiam siv cov rooj vag zais lossis cov rooj vag taw tes, tsis txhob pom qhov chaw / tuav. Xav txog qhov tsis sib xws ntawm lub arc- lub cev zoo li lub cev thiab lub cev ntev, rationally teem tus naj npawb thiab txoj hauj lwm ntawm lub rooj vag kom paub meej ceev thiab zoo ib yam ntawm cov yaj, txo cov luv luv txhaj tshuaj thiab weld kab, thiab txo cov khoom pov tseg ntawm lub sprue.

3. Txias + ejection + venting:Cov kav dej txias yog npaj raws li cov duab, nrog rau kev ua kom muaj zog rau cov cheeb tsam nrog cov phab ntsa tsis sib xws xws li kev sib txuas ntawm lub cev thiab tus kov, thiab lub qhov hluav taws xob cua. Kev tshem tawm yog ua tiav los ntawm kev sib xyaw ntawm ejector pins thiab thawb daim hlau, tsis txhob pom qhov chaw thiab qhov ua haujlwm. Rau cov kab noj hniav nyuaj, siv recessed demolding / retractable li qub. Lub qhov tob yog 0.02-0.04mm thiab qhov dav yog 4-6mm, precisely muab tso rau qhov kawg ntawm cov yaj ntws.

4. Txuag rau cov qauv ua haujlwm:Precisely tsim cov keyhole thiab cua inlet txoj hauj lwm los xyuas kom meej lub qhov raug thiab du npoo, tsis txhob ua lwm yam tom qab thiab txo nqi.

II. Kev tsim cov txheej txheem ntawm cov plhaub yas rau cov plaub hau tshuab

Mould manufacturing yog cov kauj ruam tseem ceeb hauv kev hloov cov phiaj xwm tsim rau hauv cov cuab yeej tsim khoom. Nws ua raws li cov hauv paus ntsiab lus ntawm "kev ua tiav, kev sib dhos ua qauv, thiab kev daws teeb meem nruj", thiab coj mus rau hauv tus account cov yam ntxwv ntawm nyias- cov phab ntsa, cov duab tsis zoo, thiab ntau cov ntsiab lus, tswj qhov tseeb ntawm txhua tus txheej txheem hauv peb theem los xyuas kom meej lub neej ntev thiab tsim kev ruaj ntseg ntawm cov pwm.

 

(1) Kev npaj ua haujlwm

1. Kev tshuaj xyuas ntawm cov duab kos duab + CAE simulation (Moldflow): Tshawb xyuas qhov filling, txias, warpage, thiab optimize lub rooj vag thiab dej tsim;

2. Kev yuav khoom thiab ua ntej- kev kho mob: Npaj cov ntaub ntawv raws li cov lus qhia tshwj xeeb, ua kev kho quenching ntawm H13 steel kom tshem tawm kev ntxhov siab sab hauv;

3. Kev xaiv cov khoom siv tus qauv: Xaiv kom zoo-paub hom qauv cov khoom siv rau kev taw qhia pins, ejector pins, springs, sealing rings, thiab lwm yam, kom ntseeg tau tias kev sib hloov thiab kav ntev.

 

(2) Precision processing (ua tiav cov txheej txheem saw)

1. CNC milling / CNC ntxhib machining: Tshem tawm sai heev, tawm hauv 0.3-0.5mm rau kev ua haujlwm zoo;

2. Hluav taws xob machining (EDM) ua: txheej txheem complex kab noj hniav, kab noj hniav sib sib zog nqus, nqaim slots, thiab lwm yam., uas yog ib qho nyuaj rau cov cuab yeej mus cuag, kom paub meej contour raug;

3. Hlau txiav (slow hlau txiav): txheej txheem siab - precision qhov chaw xws li sliders thiab inserts, nrog rau kev kam rau siab ntawm ± 0.005mm;

4. Kev sib tsoo zoo + polishing: Polish nto ntawm kab noj hniav mus rau qib SPI A2-A1; polish lub ntsej muag zoo nkauj rau daim iav tiav, thiab ua matte / embossed kev kho mob ntawm cov uas tsis yog - pom qhov chaw raws li xav tau;

5. Kev kho cua sov: kev kho nitride rau H13 steel, nrog rau saum npoo hardness saum HV900, txhawm rau txhim kho hnav tsis kam;

6. Cheebtsam ua: Kev ywj pheej ntawm cov txheej txheem thiab tshuaj xyuas cov khoom xws li sliders, inclined qhia kab, ejection mechanisms, thiab lwm yam.

 

 

III. Txhaj tshuaj molding txheej txheem thiab tom qab- kho

 

(1) Raw khoom ua ntej- kho

PC/ABS thiab nplaim taws-ABS retardant yuav tsum qhuav ntawm 80-85℃rau 2-4 teev, nrog rau cov dej noo tswj hauv qab 0.02%; reinforced nylon yuav tsum tau qhuav ntawm 100-110℃rau ntau tshaj 4 teev los tiv thaiv kev tsim ntawm npuas thiab nyiaj streaks thaum molding.

 

(2) Tswj cov txheej txheem tseem ceeb

Parameter qeb	Pom zoo ntau yam (tsuas yog PC / ABS)	tswj lub ntsiab point
kub	Lub khob hliav qab 230-250 degree; Pwm 70-80 degree; Qhov kub sib txawv tsawg dua los yog sib npaug li 5 degree	nplaim taws- retardant ABS pwm kub: 50-70℃; conformal txias kom ntxiv dag zog rau thaj chaw nrog cov phab ntsa tsis sib xws; pwm kub tshuab kaw - voj tswj
siab	Txhaj siab: 80–120 MPa (nyias-walled) / 60–80 MPa (thick-walled); Tuav siab: 40-70 MPa (50% - 60% ntawm kev txhaj tshuaj siab); Rov qab siab: 0.5-1.5 MPa	Kev kub siab ntau dhau yuav ua rau ntug tshuab- tawm / sab hauv kev ntxhov siab yog siab dhau; Tsis tshua muaj siab yuav ua rau muaj kev txhaj tshuaj luv luv; rov qab siab inhibits huab cua nkag.
时间	Txhaj rau 3-8 vib nas this; tuav lub siab rau 10-20 vib nas this; txias rau 15-30 vib nas this (sau rau 60% -70% ntawm lub voj voog)	Multi-theem txhaj: Kev pub mis qeeb (30–50mm / s), nruab nrab filling (50–100mm / s), qeeb tuav siab (20–30mm / s)

 

(3) Tshaj tawm - cov txheej txheem ua haujlwm

1. De-burring / Pouring chaw nres nkoj residue: Kev tuav sib tsoo + mechanical polishing kom tsis txhob khawb qhov chaw;

2. Kev tshem tawm kev ntxhov siab sab hauv: Muab tso rau hauv qhov cub ntawm 80-100℃rau 2-4 teev rau rwb thaiv tsev, tom qab ntawd maj mam txias rau hauv chav sov kom tiv thaiv warping thiab tawg nyob rau theem tom ntej;

3. Kev tshuaj xyuas thiab kev kho saum npoo: Tom qab ntxuav, ua ib qho kev soj ntsuam tag nrho ntawm cov tsos (tsis muaj npuas, indentations, khawb) thiab qhov ntev; raws li qhov xav tau, ua cov txheej txheem xws li pleev xim, electroplating, IMD / INS, thiab lwm yam.

 

IV. Core Summary thiab Countermeasures for Common Defects

 

(1) Cov ntsiab lus tseem ceeb

Lub siab- zoo ntawm cov yas casing ntawm lub tshuab plaub hau yog ua tiav los ntawm kev sib sib zog nqus ntawm pwm tsim (dual precision ntawm cov ntaub ntawv thiab cov qauv), kev tsim khoom (precision tswj thoob plaws hauv cov txheej txheem), thiab kev txhaj tshuaj molding tshuab (kaw- voj ntawm qhov kub / siab / sijhawm). Thaum lub sij hawm tsim qauv, CAE simulation yog siv los txheeb xyuas thiab zam qhov tsis xws luag ua ntej. Thaum lub sijhawm tsim khoom, kev ua haujlwm thiab kev sib dhos precision yog nruj me ntsis tswj. Thaum lub sij hawm txhaj tshuaj molding theem, cov tsis muaj kev tswj tau meej thiab cov khoom siv raw kom qhuav thiab tom qab- kev ua tiav yog ua tiav. Tag nrho peb yam yog qhov tseem ceeb. Cov tuam txhab lag luam yuav tsum tau muab cov kev cai batch, cov hom phiaj tus nqi, thiab cov qauv zoo, thiab txuas ntxiv txhim kho cov qauv pwm thiab cov txheej txheem tsis tu ncua kom tau txais txiaj ntsig zoo hauv kev sib tw ua lag luam.

 

(2) Lub Rooj Tswjhwm Saib Xyuas Kev Ruaj Ntseg

yam tsis xws luag	thawj qhov ua rau	kev ntsuas
Scars / Dents	Lub thickness ntawm phab ntsa tsis sib xws, tsis txaus tuav, thiab cua txias tsis sib xws	Txhim kho phab ntsa tuab, ua kom lub zog tuav / lub sijhawm, thiab txhim kho qhov ua kom txias txias ntawm tuab - thaj tsam phab ntsa.
vuam mark	Qhov chaw tsis zoo ntawm lub rooj vag, qhov kub tsis txias, thiab cov pa tawm tsis zoo	Kho lub rooj vag, nce cov khoom kub, thiab ntxiv qhov tso pa tawm (0.02-0.04mm tob)
txiav	Tsis txaus clamping quab yuam, tsis tshua muaj precision ntawm parting nto, thiab kev txhaj tshuaj ntau dhau	Ua kom lub zog clamping, zom qhov chaw sib cais, thiab txo qhov kev txhaj tshuaj thiab cov khoom kub
buckling deformation	Tsis sib xws txias thiab siab sab hauv	Txhim kho txoj kev dej, ncua lub sijhawm txias, thiab ntxiv cov txheej txheem annealing

 

 

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