Yuav Ua Li Cas Ntxiv Kev Pabcuam Lub Neej Ntawm BMC Moulds?

Kev pabcuam lub neej ntawm BMC pwm yog ncaj qha ntsig txog kev txhim kho kev tsim khoom thiab kev tswj cov nqi tsim khoom. Txhawm rau txuas lawv lub neej ntev, nws yog qhov tsim nyog los npog tag nrho lub neej kev tswj hwm, suav nrog kev tsim pwm, xaiv cov khoom siv, kev tsim khoom, thiab kev saib xyuas txhua hnub. Xav txog cov yam ntxwv ntawm BMC cov ntaub ntawv (thermosetting, iav fiber reinforced) thiab cov kev cai ntawm cov txheej txheem molding, cov nram qab no yuav tsum tau siv tshwj xeeb:

 

I. Optimize pwm tsim los nteg lub hauv paus rau lub neej ntev

Kev tsim qauv tsim nyog yog qhov yuav tsum tau ua ua ntej kom txo tau cov pwm hnav thiab ua kom nws lub neej ua haujlwm ntev. Cov ntsiab lus tsim hauv qab no yuav tsum tau saib xyuas tshwj xeeb:

Kev tshawb fawb npaj qhov sib cais ntawm qhov chaw thiab kab noj hniav: xyuas kom meej tias qhov chaw sib cais haum kom tsis txhob hnav los ntawm misalignment thaum lub sij hawm pwm clamping. Kev tsim kab noj hniav yuav tsum ua raws li lub hauv paus ntsiab lus ntawm "cov khaub ncaws sau thiab qhov ua kom zoo" kom txo tau qhov ntws tsis kam ntawm BMC cov ntaub ntawv thiab txo qhov kev puas tsuaj los ntawm qhov chaw siab - kev cuam tshuam rau cov kab noj hniav. Nyob rau tib lub sijhawm, optimize qhov demolding txoj kab nqes ua ke nrog cov qauv khoom kom tsis txhob khawb thaum demolding. Cov pa demolding txoj kab nqes pom zoo kom tswj tau ntawm 1℃thiab 3 degree, thiab tuaj yeem tsim nyog ntxiv rau qhov chaw nkhaus.

 

Ua kom muaj zog ntawm cov qauv ntawm cov khoom tsis zoo: Rau cov chaw xws li rooj vag, cov neeg khiav dej num, thiab cov qhov cua uas ua rau yaig los ntawm qhov kub thiab txias, qhov hnav tsis kam tuaj yeem txhim kho los ntawm kev ua kom cov phab ntsa tuab hauv zos los yog siv cov txheej txheem ntxig. Rau cov khoom txav xws li sliders, phau ntawv qhia pins, thiab lub tes tsho qhia, nws yog ib qho tsim nyog los xyuas kom meej tias qhov kev sib haum xeeb yog qhov tsim nyog (feem ntau 0.01 txog 0.02 hli), los tiv thaiv kev tshem tawm ntau dhau los ntawm kev cuam tshuam kev puas tsuaj lossis kev tshem tawm me me los ntawm kev ua kom muaj kev sib txhuam.

Ua kom zoo tshaj plaws ntawm kev tswj qhov kub thiab txias: Tsim kom muaj qhov sib npaug ntawm qhov ntsuas kub tswj kom paub meej tias qhov kub ntawm txhua qhov ntawm cov pwm yog ruaj khov nyob rau hauv qhov tsim nyog ntawm 130 txog 160 degree, zam qhov kub ntawm qhov sib txawv hauv zos uas tuaj yeem ua rau tsis sib xws thermal expansion thiab contraction ntawm cov khoom pwm, yog li tiv thaiv kev ntxhov siab thiab tawg. Cov pa hluav taws xob yuav tsum muaj tus lej txaus thiab sib npaug sib npaug kom tshem tawm cov pa roj tawm sai sai thaum lub sij hawm molding txheej txheem, tiv thaiv cov roj tsub zuj zuj uas tuaj yeem ua rau muaj kev nce siab hauv cov kab noj hniav thiab txo cov load ntxiv ntawm cov pwm.

 

II. Ua tib zoo xaiv cov ntaub ntawv pwm thiab kev kho saum npoo kom txhim kho hnav tsis kam

Qhov kev ua tau zoo thiab qhov chaw ntawm cov khoom pwm ncaj qha txiav txim siab lawv qhov hnav tsis kam, siab -kub tsis kam, thiab corrosion kuj. Kev xaiv meej yuav tsum tau ua ua ke nrog cov txheej txheem molding.

Kev xaiv zoo ntawm cov pwm kab noj hniav thiab cov khoom siv tseem ceeb: Xav txog cov yam ntxwv ntawm BMC cov ntaub ntawv uas muaj cov iav fibers thiab qhov siab - kub thiab siab - kev kub ntxhov thaum lub sij hawm molding, siab - lub zog thiab siab - hnav-cov pwm pwm xws li H13, S136, thiab P20 qhov tseem ceeb yuav tsum yog qhov tseem ceeb thiab qhov tseem ceeb ntawm cov pwm pwm xws li H13, S136, thiab P20. Ntawm lawv, H13 steel muaj qhov ua tau zoo heev - qhov kub thiab txias thiab tsim nyog rau kev ua haujlwm ntev - lub sijhawm ua haujlwm ntawm molding kub siab tshaj 160℃; S136 steel muaj qhov zoo tshaj plaws corrosion kuj thiab yog qhov zoo tshaj plaws rau kev tsim cov khoom BMC nrog cov kev xav tau zoo saum npoo av, txo qhov kev yaig ntawm cov tshuaj lom neeg ntawm cov pwm.

 

Txais siab - cov txheej txheem kho qhov chaw zoo: Kev kho deg tuaj yeem txhim kho qhov nyuaj thiab hnav tsis kam ntawm pwm nto. Common processes include chrome plating, nitriding, polishing, and PVD coating, etc. For instance, chrome plating can form a dense chromium layer on the mold surface, which features high hardness, strong wear resistance, and excellent smoothness, reducing the adhesion of BMC materials. Nitriding tuaj yeem ua rau muaj zog thiab qaug zog ntawm cov pwm saum npoo, ua rau nws haum rau siab - kub molding scenarios thiab zoo tiv thaiv oxidation thiab hnav thaum lub sij hawm rov qab thermal. High-cov pwm precision tuaj yeem kho nrog daim iav polishing kom txo cov khoom ntws tsis kam thiab txo qis kev sib txhuam.

 

 

III. Standardize ntau lawm ua hauj lwm kom txo tau tib neeg-induced puas tsuaj

Kev ua haujlwm tsis raug thaum lub sijhawm tsim khoom yog lub ntsiab ua rau ua tsis tiav ntxov ntawm pwm. Nws yog ib qho tsim nyog yuav tsum nruj me ntsis standardize cov txheej txheem kev khiav hauj lwm:

 

nruj me ntsis tswj cov txheej txheem molding tsis: nruj me ntsis ua raws li cov neeg siv pwm phau ntawv los teem lub molding kub, siab, lub sij hawm thiab lwm yam tsis, thiab nruj me ntsis txwv tsis pub tshaj - kub thiab tshaj - kev ua haujlwm siab. Tshaj - kub yuav ua kom cov laus thiab oxidation ntawm cov khoom pwm, txo nws cov hardness; tshaj -siab yuav ua rau kom lub load ntawm lub clamping mechanism thiab pwm kab noj hniav, yooj yim ua rau pwm deformation los yog tawg. Nyob rau tib lub sijhawm, xyuas kom meej tias qhov kev txhaj tshuaj / molding ceev yog ruaj khov kom tsis txhob muaj siab - cov ntaub ntawv ceev cuam tshuam rau ntawm phab ntsa kab noj hniav, ua rau hauv zos hnav.

 

Ua kom zoo cov khoom siv pretreatment thiab pwm tu: Ua ntej BMC cov ntaub ntawv raug muab tso rau hauv kev tsim khoom, lawv yuav tsum tau qhuav kom huv si kom tshem tawm cov dej noo thiab impurities kom tsis txhob muaj impurities nkag mus rau hauv pwm kab noj hniav thiab khawb qhov chaw nyob rau hauv siab. Tsis tu ncua ntxuav cov khoom seem seem hauv cov pwm kab noj hniav, rooj vag, thiab cov neeg khiav dej num kom tsis txhob muaj kev cuam tshuam ntawm kev kho cov khoom seem ntawm cov pwm tom ntej. Thaum ntxuav, nws yog nruj me ntsis txwv tsis pub ncaj qha mus khawb cov pwm nto nrog cov cuab yeej nyuaj xws li txhuam hlau. Hloov chaw, siv cov cuab yeej hloov tau yooj yim xws li txhuam tooj liab thiab cov ntaub mos muag.

 

Standardize qhov qhib thiab kaw ntawm pwm thiab demolding kev khiav hauj lwm: xyuas kom meej haum clamping quab yuam los tiv thaiv pwm deformation vim unilateral quab yuam; thaum demolding, tsis txhob yuam eject. Yog tias demolding nyuaj, ua ntej txheeb xyuas qhov ua rau (xws li demolding txoj kab nqes tsis txaus, cov khoom seem adhesion, thiab lwm yam) thiab tom qab ntawd daws qhov tshwj xeeb. Kev ua phem raug txwv nruj heev; rau pwm nrog sliders thiab cores - rub mechanisms, xyuas kom meej tias cov khoom txav tau zoo lubricated kom tsis txhob siv cov khoom siv los ntawm kev sib tsoo.

 

 

IV. ntxiv dag zog rau kev saib xyuas txhua hnub thiab kev saib xyuas tsis tu ncua, thiab tam sim ntawd txheeb xyuas thiab daws cov teeb meem uas yuav muaj tshwm sim

Kev saib xyuas tsis tu ncua thiab kev pabcuam tuaj yeem tshawb pom thiab kho qhov kev puas tsuaj me me rau pwm, tiv thaiv kev nthuav dav ntawm kev puas tsuaj thiab yog qhov txuas tseem ceeb hauv kev txuas ntxiv lub neej kev pab cuam ntawm pwm.

 

Kev tu txhua hnub thiab lubrication: Tom qab txhua qhov kev tsim tawm, tshem tawm cov khoom seem, cov roj thiab cov khib nyiab ntawm cov pwm saum npoo thiab so nws nrog ib daim ntaub mos muag. Siv lub siab- kub pwm lubricating roj rau cov khoom txav xws li coj tus pins, coj lub tes tsho, sliders thiab ejector pins kom ntseeg tau tias kev txav mus los thiab txo kev sib txhuam thiab hnav. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov roj nplua nyeem uas tiv taus qhov kub thiab txias thiab tsis hnov ​​​​mob nrog BMC cov ntaub ntawv kom tsis txhob kis cov khoom los yog cuam tshuam rau molding zoo.

 

Kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua: Tsim kom muaj ib qho kev tshuaj ntsuam xyuas tas li, thiab ua tib zoo xyuas cov pwm txhua lub lim tiam lossis txhua hli. Tsom ntsoov rau kev tshuaj xyuas seb puas muaj khawb, tawg, lossis hnav ntawm qhov chaw ntawm cov pwm kab noj hniav, seb cov ntawv qhia cov pins thiab lub tes tsho qhia tau deformed los yog qhov sib txawv tau nce, seb cov ejector pins yog khoov lossis tawg, thiab seb qhov ntsuas kub ntawm cov txheej txheem ua haujlwm li cas, thiab lwm yam. Thaum pom cov khawb me me los yog hnav, polishing thiab kho kom raws sijhawm; Yog hais tias muaj kab nrib pleb los yog hnyav hnyav tshwm sim, cov khoom puas yuav tsum tau hloov tam sim ntawd, thiab nws yog nruj me ntsis txwv tsis pub siv lawv txuas ntxiv los tiv thaiv kev puas tsuaj los ntawm kev nthuav dav.

Kev khaws cia thiab kev saib xyuas kom zoo thaum lub sij hawm tsis ua haujlwm: Thaum cov pwm tsis ua haujlwm ntev, lub ntsej muag yuav tsum tau muab ntxuav kom huv thiab coated nrog cov tshuaj tiv thaiv - xeb lossis tshuaj tiv thaiv - xeb tiv thaiv kom tsis txhob xeb. Muab cov pwm tso rau hauv qhov chaw qhuav thiab zoo- qhov cua qhov chaw, tsis txhob ntub dej, siab - qhov kub thiab txias thiab kev puas tsuaj. Rau cov pwm loj, siv txoj kev txhawb nqa tsim nyog los tiv thaiv deformation.

 

 

V. Tswj cov khoom zoo ntawm BMC kom txo cov pwm hnav ntxiv

Kev hloov pauv hauv kev ua tau zoo ntawm BMC cov ntaub ntawv tuaj yeem ua rau pwm tuaj pwm. Nws yog ib qho tsim nyog yuav tsum nruj me ntsis tswj qhov zoo ntawm cov ntaub ntawv kom txo tau cov load ntxiv ntawm cov pwm los ntawm qhov chaw.

 

Tswj cov ntsiab lus thiab ntev ntawm cov iav fibers: Ntau cov iav fiber ntau cov ntsiab lus lossis cov fibers ntev ntev tuaj yeem txhim kho cov khoom siv abrasive, ua kom cov pwm kab noj hniav nrawm dua. Raws li kev ua tau zoo ntawm cov khoom, xaiv BMC cov ntaub ntawv nrog cov iav fiber ntau thiab ntev. Feem ntau, cov iav fiber ntau ntev yuav tsum tau tswj tsis pub dhau 3 mus rau 6 hli.

 

Tiv thaiv cov impurities nyuaj los ntawm kev sib xyaw: Xaiv cov khoom siv BMC ruaj khov thiab tswj xyuas cov khoom zoo kom tsis txhob sib xyaw ntawm cov hlau shavings, xuab zeb, thiab lwm yam tawv impurities hauv cov ntaub ntawv. Thaum cov impurities no nkag mus rau hauv pwm kab noj hniav, lawv yuav ua rau khawb qhov ntawm cov pwm kab noj hniav thaum lub sij hawm siab -siab molding, thiab tej zaum yuav ua rau cov pwm ncaj qha scrapping.

 

Hauv kev xaus, txhawm rau txuas ntxiv lub neej kev pabcuam ntawm BMC pwm, nws yog ib qho tsim nyog yuav tsum ua tiav tag nrho -kev tswj hwm ntawm "kev tsim kho kom zoo, siab- cov ntaub ntawv zoo, kev ua haujlwm tau zoo, kev tu kom zoo, thiab cov ntaub ntawv tswj tau". Los ntawm kev tswj hwm kev tshawb fawb thoob plaws hauv lub neej tag nrho, tsis yog tsuas yog tuaj yeem ua haujlwm lub neej ntawm cov pwm tuaj yeem ua haujlwm ntev, tab sis kuj tseem tuaj yeem txhim kho qhov zoo ntawm cov khoom pwm tuaj yeem txhim kho thiab cov nqi ntau lawm tuaj yeem txo.