Paub txog Tus Swb ntawm Kev Lag Luam Nta Extrusion hauv Thermal Break Strip Zoo

Yuav li cas kev lag luam nta ua loj siv tiam rau kev ua tiav thiab kev zoo ntawm cov thermal break strip

Kev tshem tsa rau cov ntim thaum tsis muaj teeb meem tuaj yeem pab tx сохранить kev ntsuas sib piv yog li ±0.05mm uas feem ntau hu ua standard hauv cheeb tsam no, thiab kom zoo saum npoo rau cov chaw tso dej tso khaus. Thaum peb saib xyuas tsaus ntawm cov ntim thiab cov ntim kho qhov ceev, nws yuav tshem tsov cov kab ntsaws leeg uas tsis zoo rau kev ntsuas. Kev saib xyuas kev sib cuagก็ important vim nws pab tso kom khoom siv tau zoo ib yam. Muaj ib tug neeg nyob rau xyoo 2023 sawv ceem nyob rau polymer extrusion pom ib yam tiag: thaum tsis sib tham rau cov ntim zoo, qhov saum npoo yuav raug siab dua li 42%. Qhov no tsim cov av ruaj hauv qhov chaw tso dej tso khaus, uas tsis muaj leej twg xav tau. Kev sib loss ntawm qhov precision no tsis yog yog ib txwm zoo rau kev tiv thaiv rau cov pa rooj vij rooj thiab rooj zaub los yog qhov ceev ntxig mus rau lub sijhawm.

Cov Nkhaus Tseem Ceeb ntawm Cov Chaw Tso Extrusion thiab Qhov Tseem Ceeb ntawm Lawv

Plaub qhov chaw tseem ceeb uas txheej xyuas kev ua haujlwm ntawm cov ntim:

• Cov Ntim : Npaj ntaus cov duab uas muaj hluav taws xob rau qhov chaw kho tshuaj ntawm qhov chaw kho tshuaj
• Cov ntaus qab zib : Lauch lub qhov ntev thaum lub sijhawm lub ntawv qab dhia zoo rau lub qhov thev naus laus zis
• Barrels : Tiv thaiv lub zog hluav taws (feem ntau 30–100 MPa) rau cov khoom sib npaug
• Cov khoom siv ntawm lub kaum : Tiv thaiv cov neeg siv khoom

Kev txhissiag kev saib xyuas lub kaum tuaj yeem cuam tshuam rau lub sijhawm 18% hauv 500 teev uas tsim khoom, thaum cov duab uas tsis raug qhia tuaj yeem ua rau qhov hnyav hnyav dhia dua li ISO 7823-2, sib txuas nrog kev ua haujlwm kho tshuaj.

Kev hiam los ntawm cov khoom siv thiab cov hluav taws hluav taws rau qhov chaw kho tshuaj ntawm qhov chaw kho tshuaj

Txhawm rau cov kab carbon zoo li 0.2mm feem ntau tuaj yeem tsis ua haujlwm zoo ntawm qhov txias. Lawv tuaj yeem ua rau muaj kev pheej xwm xws li qhov txias tsis zoo, roj teeb me me thaum tshuab tshav tawv tshuab tshav tawv, thiab cov khoom tshaib me me uas t eventually ua rau muaj qhov hluv hauv khoom tiav. Yog tshuab tshav tawv tshuab tshav tawv txhua peb xyoo thim sis ib xyoo, yuav kho kom tsawg dua li 40% ntawm cov khoom tsis raug. Thiab yog tshuab tshav tawv hloov mus rau kev sau ua haujlwm los ntawm kev sau ua haujlwm, yuav pom muaj kev pab ntxig ntxig dua. Lub tshuab sau ua haujlwm yuav tshem tawm cov kab carbon zoo li 30% zoo dua kev sau ua haujlwm theem theem raws li cov ntsiab lus tshiab tshaj tsham tseg hais tias nyob rau hauv Plastics Engineering Journal xyoo npog.

Kev daws teeb meem txhua hnub thiab txhua hli tshwj tsis txhob tshuab tshav tawv

Kev daws teeb meem txhua hnub thiab txhua hli zoo siv siv rau kev tshuab tshav tawv thiab kho kom tsawg dua li 22% kev tshuab tshav tawv tsis raug (Plastics Engineering Journal, 2023).

Kauj ruam  los ntawm  kauj ruam sau ua haujlwm thiab saib xyuas dies txhua hnub

Thiab lub sijhawm ntawm txhua qhov sib txuas, tshem tshaib cov khoom nyiaj ntawv uas tsis muaj zog kom tsoom mus rau hauv kev tsim kho cov kab ntaub.

Sau tus nqi ntawm qhov chaw ua haujlwm los ntawm kev saib xyuas hnav hnav hnav hnav

Sau tus nqi ntawm plaub qhov kev daws teeb meem:

• Qhov chaw sau npe ntawm cov rooj zaum (>0.1mm qhov ntev yuav tsum tau hloov)
• Qhov chaw nce nce ntawm qhov chaw nkag mus
• Kev tshwm sim ntawm khoom near parting lines
• Kev sov tsis zoo vim li cas ntau lawm

Cov ntsiab uas pom los ntawm kev ua haujlwm kom paub txog qhov chaw siv ntau thiab cia siab lub sijhawm ua haujlwm ua ntej thaum muaj qhov tsis zoo

Kev pom lub alignment thiab kev caw calibration ntawm cov khoom siv hauv mold los ntawm sijhawm

Ke vajtswm kev caw laser hauv ib lub cheev cai hauv ib lub hnub kom paub qhov sib txawv ntawm cov die plates. Caw cov system ejection dua thaum qhov sib txawv siis dua 0.02mm/m kom tiv thaum muaj kev nqha hneev uas ua rau cov khoom siv ntau hauv cov kev ua haujlwm ntau

Kev ua haujlwm tiv thaum xyoo: kev lubrication, kev caw thiab kev zoo siab ntawm cov system

Kev cia siab lub sijhawm lubrication hauv ib lub cheev cai kom tiv thaum cov khoom siv ntau

Siv cov lubricants sib txawv uas zoo li hnyav hauv ib lub cheev cai rau cov khoom siv hauv kev ua haujlwm aluminum. Lub ntsiab lus uas ua haujlwm hauv 2023 pom tias kev lubircation hauv ib lub cheev cai ua rau cov chaw ntxaj ntxeev siab dua 42% thiab ua rau cov khoom siv ntau dua 28% tshwj xeeb hauv cov kev ua haujlwm hauv ib lub xyoo. Tham txog cov lus qhia ntawm cov kws tshaj lij kom zoo, vim tias cov lubricants ntau dhau ua rau cov khoom siv ntau dhau

Kev saib xyuas cov seals thiab cov gaskets kom zoo siab cov system

Kev siv hnav ntawm qhov kho rau qhov tsis nyob zoo yog li 31% ntawm cov cuab yeej tso tawm los ntawm kev tsim kho rau kev tsim kho rau kev ua haujlwm (Plastics Technology, 2023). Thaum txheej xeeb hli, nrhiav kom pom:

• Kev ntxuav tawm hauv cov gasket silicone
• Cov raj muag le le ntawm qhov chaw tso sprue
• Kev hlo tawm ntawm qhov loj ntawm cov seals viton

Txav cov khaub ncaws twg muaj >15% kev hlo tawm ntawm qhov ntev lossis qhov loj ntawm Shore A hlo tawm dua 5 lub ntsiab lus. Tshawj cov kev tshawj pneumatic nyob rau 1.5x qhov siab tshaj txaus kom pom cov chaw tso tawm ua ntej rov qhib kev tsim khoom.

Daws kom zoo dua txoj kev coj ceev saib xyuas txhuas kom tau raws li kev tso tawm khoom zoo ib yam

Kev saib xyuas qhov txhuas zoo tshaj rau kev tso tawm khoom rau thermal break strip ib yam

Qhov txhuas zoo tshaj rau die nyob rau hauv ±3°C yog tseem ceeb rau kev tso tawm khoom ib yam thiab tsis muaj qhov tsis nyob zoo. Qhov sib txawv tuaj yeem pab txo qhov tsis zoo tshaj 12% ntawm kev tsim khoom. Cov chaw tsim khoom tshiab tau txais kev coj ceev sai sai los ntawm kev siv zos tshiab nrog PID controllers sib txawv, kev saib xyuas txoj kab mob tshaj tawm, thiab kev hlo tawm automata ntawm polymer viscosity.

Rov qhov xwm txheej ntau hauv kev ua haujlwm ntawm cov ntaub ntawv ua haujlwm uas nyob rau hauv kev ua haujlwm ntawm cov ntaub ntawv ua haujlwm

Kev ua haujlwm siab dhau feem ntau los ntawm peb qhov ua rau hauv ntu ntawm tshuaj lom neeg:

• Kev hloov pauv ntawm cov khoom siv : Cov khoom siv carbonize nyob rau hauv 340-370°C , ua rau kev txiav tawm kev txuas heat
• Kev txias tsis zoo : Cov khoom siv hnyav dhau los ntawm 18-22% tsis muaj kev kho mob
• Kev hloov pauv ntawm cov hluav taws xob : Rauj huam kawg tshuab kheeb kom tsis muaj qhov chaw kub zoo li cas li cas

Kev tu thiab saib xyuas txhua yam uas nyob ntawm tus cwj pwm, txwv tsis pub tshaj 37% feem ntawm kev tshuab kub phom sij dua li kev cai uas muaj xyuas rau xyoo (Plastics Processing Institute, 2023). Kev sau hlo tshuab thaum kub tshaj tshwv cuab yam ntxiv tso kom tsis phom sij rau qhov chaw ntoo lossis rau sab nraud ntawm tshuab ntoo.

Ntev  Kev khiav rau lub sijhawm ntev thiab kev saib xyuas tshuab ntoo uas tsis siv

Txoj kev kho tshuab ntoo kom siv ntev dua

Sau tshuab ntoo rau hauv qhov chaw muaj teeb meem ib puag ncig uas tsawg dua 50% feem pua nyob rau hauv dej kom tsis txhob muaj khaub npawg—qeej yog qhov tseem ceeb tshaj plaws rau kev nyob ntev thiab muaj kev sib piv txwv. Sau tshuab ntoo raws kev xwm fab kom tsis muaj kev puag ncig kom tsis muaj kev puag ncig. Tso tshuab kuab dej rau hauv qhov chaw sau kom tua dej nyob hauv. Kev sau tshuab ntoo tsis raug yuav pheej 35% ntau dua (Journal of Polymer Processing, 2022).

Txoj kev kho sab nraud rau kev tshem tshuaj kom tsis muaj kab mob thaum tsis siv

Volatile Corrosion Inhibitor (VCI) films pab 70% ntau dua cov greases nyob rau hauv 12 hlis (NACE International, 2021).

Mold Cleaning thiab Disassembly Procedures ua ntej Long  Term Preservation

• Ua ultrasonic cleaning (40–60 kHz) nrog cov agents los xa mus carbonized residues
• Soog lub venting channels saum borescope kom pom cov micro-cracks uas xav tau kho
• Sov tshuaj kho hlau rau qhov sealing surfaces kom tsis txhob ua cov khoom uas muaj petroleum uas ua rau cov dust nce mus

Rhai cov systems hot runner tshwj xeeb thiab ceev cov nozzles rau hauv anti-static foam kom tiv thaiv arc erosion nyob rau hauv kev ceev.