Kev faib tawm pwm
Cov lus piav qhia luv luv:
Pwm (pwm, tuag) yog tsev neeg loj heev, nws ua lub luag haujlwm tseem ceeb hauv kev lag luam niaj hnub. Kev ntshiab kev faib tawm pwm yog qhov tseem ceeb heev rau kev nkag siab txog kev tsim khoom.
Pwm (pwm, tuag) yog qhov cuab yeej tshwj xeeb uas siv rau hauv tib neeg kev ua ub no. Kev faib tawm pwmsuav nrog ntau yam. Hauv lub neej niaj hnub, qub yog ze rau kev tsim khoom lag luam, uas txhim kho ntau lawm cov khoom lag luam tsim tau thiab raug nplig ntawm qhov chaw.
Pwm yog qhov cuab yeej tshwj xeeb uas siv rau hauv tib neeg cov haujlwm. Pwm kev faib tawm muaj ntau yam. Hauv lub neej niaj hnub no, pwm nyob ze rau kev tsim kev lag luam, uas txhim kho ntau lawm cov khoom lag luam tsim tau thiab raug nplig ntawm qhov chaw.
Pwm yog cov cuab yeej siv thev naus laus zis uas ua cov haujlwm (duab) cov khoom siv rau hauv cov khoom thiab cov khoom seem nrog cov duab tshwj xeeb thiab qhov ntau thiab tsawg. Xws li: stamping tuag, yas txhaj tshuaj pwm, tuag casting pwm, forging pwm, hmoov metallurgy tuag pwm, yog nqus tuag, extrusion tuag, dov tuag, iav tuag, roj hmab pwm, ceramic pwm, casting pwm thiab lwm yam. Hauv kev lag luam niaj hnub no, lub pwm feem ntau hais txog cov pwm uas siv rau hauv kev ua cov khoom loj ntawm cov khoom yas thiab cov khoom sib txuas. Thaum nws raug siv los tsim cov khoom los ntawm cov kua yas, hlau thiab lwm yam khoom siv tau txhaj rau hauv nws cov kab noj hniav, peb hu nws ua "pwm" lossis "pwm". Thaum nws raug siv rau xuas nrig ntaus, khoov, khoov thiab extrusion ntawm cov khoom dawb, peb feem ntau hu nws ua "tuag".
Cov pwm raug txwv raws nws cov nta raws li hauv qab no:
Kev faib tawm los ntawm cov khoom siv thiab kev siv tshuab, cov pwm tuaj yeem muab faib ua lub tshuab tuag zoo pwm, yas pwm thiab pwm tshwj xeeb.
(1) Cov hlau tsis muaj hmoov thiab cov hmoov hlau ua pwm: pwm pwm, sintering pwm, xuab zeb pwm, nqus plua plav pwm thiab paraffin pwm.
Nrog rau txoj kev loj hlob sai ntawm polymer plastics, cov yas pwm yas yog ze rau tib neeg lub neej. Cov yas pwm feem ntau tuaj yeem muab faib ua: txhaj tshuaj pwm, extrusion pwm, pwm roj-pab ua pwm, thiab lwm yam
(2) Cov cuab yeej cuab yeej tuag tau muab faib ua: tuag casting tuag, tuag ntaus tuag (xws li xuas nrig ntaus tuag, khoov tuag, kos duab tuag, tig tuag, ua kom tuag, tuag, ua rau tuag, ua rau tuag, ua rau tuag, thiab lwm yam), ua rau tuag (xws li raws li kev tuag forging tuag, kev sib tw tuag, thiab lwm yam), extrusion tuag, tuag casting tuag, forging tuag, thiab lwm yam.
Hlau stamping tuag
1.Txuas kev ua cov pwm yas
(1) Txhaj Mould
Kev txhaj tshuaj pwm yog ib hom pwm uas siv los tsim qhov chaw ntawm thermoplastic thiab thermosetting plastics. Kev txhaj tshuaj molding yog dav siv vim tias nws muaj qhov ntsuas siab thiab kev ua haujlwm zoo. Kev txhaj tshuaj molding yog ntxiv cov yas rau hauv qhov cua sov ntawm lub tshuab txhaj tshuaj. Cov yas tau rhuab thiab yaj. Tsav los ntawm lub hau ntswj lossis lub plunger ntawm lub tshuab txhaj tshuaj, lub plastics txhaj rau hauv cov pwm kab noj hniav los ntawm lub nozzle thiab cov pwm nchuav txheej txheem, thiab cov tawv thiab ua rau cov khoom siv txhaj tshuaj vim lub cev thiab tshuaj ua. Kev txhaj tshuaj molding yog lub voj voog uas tsim los ntawm kev txhaj, tuav siab (txias) thiab cov txheej txheem ntawm cov yas ntu.Yog li ntawd, kev txhaj tshuaj molding muaj cov yam ntxwv raws sijhawm.
Thermoplastic txhaj moulding muaj qhov zoo ntawm luv luv lub voj voog moulding, kev ua haujlwm siab ntau, coj me me ntawm cov khoom siv hlau ntawm cov pwm, thiab cov khoom loj ntawm cov khoom siv yas nrog cov qauv ua kom pom tseeb, cov qauv ntshiab saum npoo thiab kos cim, thiab ntsuas qhov siab. Txawm li cas los xij, rau cov khoom seem yas nrog cov phab ntsa loj hloov pauv, nws yog qhov nyuaj kom tsis txhob muaj pwm qhov tsis xws luag. Anisotropy ntawm cov khoom seem yas kuj yog ib qho teeb meem zoo. Txhua yam ua tau los yuav tsum ua los txo nws tsawg.
Txhaj tshuaj pwm
(2) Extrusion pwm rau yas
Yas extrusion molding yog ib hom kev sib sau los ua cov yas hauv khov dej ntws hauv lub xeev dhau los ntawm kev tuag nrog cov khoom tshwj xeeb ntu ntawm qhov kub ntawm qhov kub thiab qee qhov siab, thiab tom qab ntawd tsim nws mus rau hauv cov ntawv txuas ntxiv nrog kev xav hla cov ntu ntawm qis dua kub. Cov txheej txheem ntau lawm ntawm extrusion molding yog kev npaj cov khoom siv molding, extrusion molding, txias chaw, traction thiab txiav, tom qab ua tiav ntawm cov khoom extruded (txias lossis kho cua sov). Nyob rau hauv cov txheej txheem ntawm extrusion, yuav tsum tau them nyiaj rau kev kho qhov ntsuas kub, ntsia hlau ceev thiab lub nrawm ntawm txhua qhov cua sov ntawm lub thoob thiab tuag ntawm lub tshuab txuas kom tau txais qhov tsim nyog extrusion profile.
Tshwj xeeb yuav tsum tau them rau kho cov extrusion tus nqi ntawm polymer yaj ntawm tuag. Vim tias thaum tus nqi extrusion ntawm molten cov khoom siv qis tsawg, lub extrudate muaj qhov chaw du thiab sib npaug ntawm cov duab sib tshooj, tab sis thaum qhov nqi extrusion ntawm molten cov khoom nce mus txog qee yam kev txwv, qhov chaw extrudate yuav dhau los ua ntxhib thiab ploj lus, thiab tawv nqaij, txiv kab ntxwv tev, cov duab tsis sib xws thiab lwm yam tshwm sim yuav tshwm sim. Thaum lub extrusion nqi nce ntxiv, qhov saum npoo ntawm extrudate yuav cuam tshuam, thiab txawm txiav ceg thiab tawg rau hauv cov yaj tawg lossis cov thooj voos kheej kheej. Yog li ntawd, kev tswj hwm tus nqi extrusion tseem ceeb heev.
Yas extrusion ntau lawm kab
Extrusion tuag
(3) Hollow txoj kev ua pwm
Lub tshuab hollow forming pwm suav nrog extrusion tshuab moulding hollow sib sau thiab txhaj tshuaj moulding hollow sib sau ob hom pwm.
Hollow moulding yog ib hom kev ua cov txheej txheem uas kho cov tubular lossis daim ntawv seem uas yog tsim los ntawm extrusion lossis txhaj tshuaj thiab tseem nyob hauv lub xeev plasticizing nyob rau hauv kev txhaj tshuaj pwm, tam sim ntawd txhaj compressed cua, yuam kom cov seem kom nthuav dav thiab lo rau ntawm phab ntsa ntawm pwm kab noj hniav, thiab pob zeb tom qab txias thiab ua kom tiav, thiaj li kom tau txais cov khoom lag luam uas yuav tsum tau hollow.
Lub plastics haum rau hollow molding yog siab siab polyethylene, tsis tshua muaj siab polyethylene, txhav polyvinyl chloride, mos polyvinyl chloride, polystyrene, polypropylene, polycarbonate, thiab lwm yam Raws li kev sib txawv txoj kev ntawm parison, hollow sib sau tuaj yeem faib ua extrusion tshuab moulding thiab txhaj tshuaj tshuab moulding. Qhov zoo ntawm extrusion tshuab moulding hollow sib sau yog tias cov qauv ntawm extruder thiab extrusion tshuab tuaj pwm yog yooj yim. Qhov tsis zoo yog tias phab ntsa tuab ntawm parison tsis sib thooj, uas yooj yim ua rau lub phab ntsa tsis sib luag ntawm cov khoom yas. Txoj cai daim duab yog daim duab schematic ntawm lub extrusion tshuab moulding hollow sib sau ua tus.
Kev txhaj tshuaj tshuab moulding muaj qhov zoo ntawm txheej txheem phab ntsa tuab thiab tsis muaj ntug ya. Vim tias hauv qab ntawm kev txhaj tshuaj molding, hauv qab ntawm cov khoom siv hollow yuav tsis tsim splicing seam, uas tsis yog tsuas yog zoo nkauj tab sis kuj muaj lub zog siab. Qhov tsis zoo yog tias cov cuab yeej siv thiab cov pwm siv kim kim, yog li cov txheej txheem tsim no feem ntau yog siv hauv qhov loj ntawm cov khoom siv me me, thiab nws tsis siv dav hauv kev siv extrusion tshuab moulding hollow sib sau txoj kev.
Kev txhaj tshuaj tshuab moulding rau yas
Tshuab pwm
(4) Tuag casting pwm rau yas
Tuag casting pwm no tseem hu ua hloov pwm. Cov khoom siv yas ntxiv rau hauv chav ua ntej pub mis, thiab tom qab ntawv tso siab los ntawm lub siab teev. Cov yas yaj hauv qab kub thiab siab, thiab nkag mus rau hauv qhov kab noj hniav los ntawm qhov ua haujlwm casting ntawm cov pwm, maj mam tawv thiab tsim. Qhov qauv txheej txheem no yog hu ua kev tuag-casting kev tsim, thiab cov pwm uas siv hu ua die-casting molding. Qhov pwm no feem ntau siv rau kev thermosetting yas txoj kev ua.
(5) Compression Pwm
Kev sib txuam moulding yog ib qho ntawm cov txheej txheem molding ua ntej tshaj plaws ntawm cov yas. Kev sib xyaw ua kom nruj yog ntxiv cov plastics ncaj qha mus rau hauv qhov qhib tuag qhov chaw nrog qhov ntsuas kub, thiab tom qab ntawd kaw qhov tuag. Hauv qab qhov kev txiav txim siab ntawm tshav kub thiab siab, cov yas yaj melts rau hauv ib lub xeev ntws. Vim tias kev siv lub cev thiab tshuaj, cov plastics yuav tawv rau hauv cov yas nrog qee hom thiab qhov loj ntawm chav sov. Compression molding yog siv rau kev txhaj tshuaj molding thermosetting plastics, xws li phenolic molding hmoov, urea formaldehyde thiab melamine formaldehyde molding hmoov, iav fiber ntau ntxiv phenolic plastics, epoxy resin, DAP resin, silicone resin, polyimide thiab lwm yam. Nws tseem tuaj yeem ua molding thiab ua cov txheej txheem ua tsis muaj cov polyester sib xyaw ua ke (DMC), ntawv moulding plastics (SMC), prefabrication. Monolithic moulding plastics (BMC) thiab lwm yam. Feem ntau, cov qauv kev sib txuam ntawm sab qaum thiab qis tuag ntawm lub tshuab zaj duab xis feem ntau nias, thiab cov compression tuag tau muab faib ua peb hom: hom dhau, hom tsis dhau thiab hom over-over.
(6) Lub zog tuag tuag
Kuj hu ua tuag casting. Cov khoom yas ntxiv rau hauv chav ua ntej them nqi, thiab tom qab ntawd nias kab ntawv yog muab tso rau hauv lub chaw them nqi kom xauv lub qhov tuag. Qhov siab thov rau yas los ntawm nias kab ntawv. Cov yas yaj mus rau hauv lub xeev ntws thaum muaj qhov kub thiab siab thiab siab, thiab solidifies rau hauv kab noj hniav maj mam los ntawm kev tso cov kab ke. Qhov qauv txheej txheem no tseem hu ua hloov moulding. Kev txhaj tshuaj maus taus yog tsim nyog rau cov plastics uas muaj cov ntsiab lus sib xyaw. Hauv txoj ntsiab cai, nws tuaj yeem siv rau compression moulding los yog siab txhaj tshuaj molding. Txawm li cas los xij, thaum lub tshav kub solidification tau qis dua qhov nruab nrab ntawm lub tshav kub solidification, lub xeev melting muaj qhov zoo fluidity, thiab thaum lub solidification kub dua, qhov sib txawv solidification yog siab dua.
2. Kev faib tawm kev kho vajtse tuag
Raws li cov khoom siv thiab cov txheej txheem ib puag ncig, cov hlau pwm tuaj yeem muab faib ua cov pwm ua haujlwm kub thiab pwm ua haujlwm txias. Qhov sib txawv ntawm lawv yog loj heev.
1) Kub ua haujlwm tuag: kub ua haujlwm tuag hlau hais txog qhov tuag tsim nyog rau kub deformation ntawm hlau, xws li kub kub tuag tuag, tuag casting tuag, kub forging tuag, kub chim tuag tuag, thiab lwm yam. Raws li cov kub ua haujlwm tuag ua haujlwm nyob hauv qhov kub kub thiab lub siab ua kom lub cev ntev, cov khoom siv tuag yog qhov yuav tsum muaj lub zog siab, ua haujlwm siab thiab thermal stability, tshwj xeeb tshaj yog muaj zog thermal, thermal qaug zog, tawv thiab hnav tsis kam. Nws mas suav nrog:
A. Cov hlau tuag casting tuag pwm: txheej txheem yog txhaj cov khoom siab ntawm cov hlau ua kua hlau ua rau cov kab noj hniav kom tuag kom tau txais cov khoom ntu uas yuav tsum tau ua. Hlau tuag casting yog siv los ua cov khoom ua kom zoo nkauj ntawm aluminium alloy, zinc alloy, magnesium alloy thiab lwm cov khoom tsis muaj hlau.
B. Hlau hmoov sintering pwm: cov txheej txheem yog los ua cov hmoov hlau ua tej yam duab thiab qhov loj ntawm cov billet hauv cov pwm, thiab tom qab ntawd ua kom cua sov lub roj ntswm mus rau lub xeev melting, thiaj li tsim tau. Hlau hmoov sintering yog siv rau stainless hlau, titanium, tooj liab, hlau, npib tsib xee thiab lwm yam kub kub alloy qhov chaw.
C. Hlau kub extrusion tuag: kub ua haujlwm kub extrusion tuag feem ntau siv rau kev ua cov txhuas, hlau nplaum, hlau thiab lwm yam hlau hauv qhov kub qhov chaw ib puag ncig, thiab cov duab ntoo hla ntawm cov qhov tsim tawm tseem tsis hloov. Qhov kub extrusion tuag yuav tsum muaj zoo thaum tshav kub kub hnav tsis kam thiab tempering tsis kam.
Hlau tuag casting pwm
Kub extrusion tuag thiab txhuas profile
2) Kev ua haujlwm txias tuag (Stamping tuag): txias ua haujlwm tuag feem ntau tuag ua haujlwm ntawm chav tsev kub, uas feem ntau hu ua stamping tuag (xws li xuas nrig ntaus tuag, khoov tuag, kos duab tuag, tig tuag, shrinkage tuag, dov tuag, sib tsoo tuag) , puab tuag, etc.). Kev ua haujlwm ntawm kev ua haujlwm txias tuag feem ntau yuav tsum tau ris ntau lub siab, khoov lub zog, lub zog quab yuam thiab kev sib txhuam, yog li cov deformation tsis kam yog qhov loj.
A. Hlau pam tuag: tus hlau pam tuag yog siv los txiav ob sab qauv ntawm cov hlau phaj. Cov ntu kuj tuaj yeem siv los ua kab xev rau khoov, kos duab thiab ua qauv. Kev pam vov yog feem ntau siv rau kev pam, xuas nrig thiab txiav ntawm cov hlau, steel hlau, aluminium alloy, tooj liab alloy thiab lwm daim hlau.
B. Dabtsi los tuag: qhov uas siv tuag los khoov phaj, tuav thiab ntu rau qee lub kaum, khoov thiab duab. Nws yog tsim rau steel, stainless hlau, aluminium alloy thiab tooj liab tooj hlau qhov chaw.
C. Kos duab tuag: kev kos duab yog txheej txheem ntawm stamping, kos duab ntiv nplhaib lossis hlau tuag los hloov cov ntawv hlau cov ntawv mus rau hauv lub tog raj kheej lossis lub thawv uas muaj cov seem. Kev kos duab tuag yog ib qho kev pab ntau rau kev kos duab.
D. Txoj kev tuag: siv txoj kev tuag yog ib hom kev tsim cov qauv yas uas cov yas deformation tau ua rau ntawm cov khoom thaum nws zoo thiab cov yam ntxwv ntawm lub cev tsis hloov. E. Riveting tuag: hlau riveting yog ib txoj kev sib txuas ntawm ob txoj kev ua haujlwm los ntawm kev ua haujlwm nruab nrab los ntawm kev siv dag zog. Feem ntau, riveting yog siv ntawm daim hlau tiaj tiaj. Cov tuag siv hauv cov txheej txheem yog hu ua riveting tuag.
Dabtsi los tuag
Hlau stamping tuag
Daim ntawv thov cov pwm lossis tuag:
(1). Cov khoom siv hluav taws xob thiab kev sib txuas lus;
(2). Chaw ua hauj lwm cov khoom siv;
(3). Lub tsheb cav thauj khoom seem;
(4). Khoom siv hauv tsev;
(5) .Txhob khoom siv tsis zoo;
(6). Kev khomob thiab ib puag ncig tiv thaiv;
(7). Chaw tsim khoom;
(8) .Ntawm kev txawj ntse;
(9). Tsheb Thauj Mus Los;
(10). Khoom siv hauv tsev, chav ua mov thiab chav dej thiab khoom siv;
