Yuav ua li cas kom tsis txhob poob lub mesh

- Feb 16, 2018 -

Yuav ua li cas kom tsis txhob poob lub mesh

How to reduce the loss of screen mesh

Polyester mesh txog li 10 mus txog 40 nyiaj qhov chaw hauv Teb Chaws Asmeskas, yog ib qho khoom siv kim tshaj plaws hauv kev tshuaj mesh luam ntawv. Tab sis lawv yog cov lam tau lam ua thiab lam tau lam ua. Yog tias koj khwv tau 100 mus rau 200 daus las rau ib lim piam (qhov sib npaug li 2 mus rau 4 qhov nruab nrab ntawm cov meshs), cov nqi ntawm ib lub xyoo yuav nce ntawm 8,000 rau 10,000 USD.

Ua zoo saib xyuas, tsis zoo qhov chaw tsim, cov txheej txheem luam tawm ntawm kev sib tsoo uas tshwm sim los ntawm kev tshuaj mesh puas tsuaj mus txog 20% mus rau 30%. Txawm hais tias cov teeb meem no yuav tiv thaiv tau qee zaus, nyob rau qhov kev tshwm sim tsis zoo ntawm kev sib tsoo, koj yuav tsum npaj rau kev tshuaj mesh hloov, uas yog tus nqi pheej yig ntawm kev ua mesh luam lag luam.

Txawm li cas los xij, feem ntau ntawm cov mesh puas tsuaj yog tshwm sim thaum lub sij hawm siv tshuaj mesh lossis los ntawm kev siv tshuaj mesh ntau lawm. Lub ntsiab lus tseem ceeb uas ua rau lub voj mesh yuav ua kom puas ntsoog thaum lub vijtsam mesh luam tawm xws li, qhov tseemceeb, cov ntsiab lus hauv qab no:

Txhim kho ncab

2. Tsis muaj cov khoom siv kev sim, khoom siv zoo thiab lwm yam cuab yeej;

3. Lub thav duab tsis npaj.

Cov teeb meem no muaj peev xwm yuav zam tau los ntawm kev cob qhia kev ntsuas meshmasters thiab muaj ib qho chaw nruab nrog mesh khw. Koj yuav tsum tau nqis peev pab rau cov cuab yeej tshiab rau lub khw txiav stencil, uas muaj peev xwm yuav raug them nqi rau kev kawm, tab sis tag nrho cov nqi ntawm cov kev txhim kho no yog tsawg dua tus nqi ntawm so cov tshuaj mesh.

 

Tension ntawm lub mesh screen

Feem ntau cov mesh puas tsuaj tshwm sim thaum tensioning los yog raws li kev tshwm sim ntawm kev ncab. Peb yam tseem ceeb uas ua rau muaj kev puas tshuaj mesh xws li:

Tawg thiab tsis muaj sij hawm ua tiav kev ruaj ntseg;

2. Cov nqi nruj tsis muaj tseeb;

3. Cov ces kaum ntawm lub voj voog yog nyuab siab.

 

Lub sij hawm nruj

Tus txheej txheem nruj nruj sib tham nyob rau hauv cov lus hauv qab no yog los ntawm qhov kuv hu ua "txwm" txoj kev. Nyob rau hauv thaum ntxov 1990s, lwm txoj kev, txoj kev nrawm nrawm, tsim los ntawm Screen Mesh Printing Technology Foundation, yog tsim los ua kom nce mesh-making efficiency. Nrog rau txoj kev no, cov mesh npo yuav nro tau ib kauj ruam zuj zus, hauv qab nws txoj kev tawg, ua kom tsis txhob muaj qhov tedium ntawm kev nrawm nrawm ntawm ob peb kauj ruam. Txawm hais tias hom no tau yeej ib txhia cov thwjtim, nws tsis tuaj yeem hloov cov kev cai, vim hais tias nws yog ib qho kev tiv thaiv tsawg dua, feem ntau uas ua rau txoj kev tawg ntawm lub vijtsam ntsej muag.

Txawm hais tias muaj qee qhov screen meshs, tshwj xeeb tshaj yog cov hauv qab 100 mesh / nti, tuaj yeem nrawm rau lawv theem siab tshaj plaws nyob rau hauv ib kauj ruam nrawm, qhov kev coj mus cuag yog nrawm rau lub ntsej muag ntawm 3 mus rau 4 me me ntxiv. Lub mesh yuav tsum xub yuav nrawm rau theem pib nro, uas yog ib feem ntawm nws qhov kev sib nraus zaum kawg. Ua ntej pib mus rau tom ntej nro, cov tshuaj mesh yuav tsum muab tso rau 20 feeb. Tom ntej, qhov nro ntawm qhov nro yuav tsum yog 1/3 rau 1/4 ntawm qhov txawv ntawm qhov pib thiab qhov kawg nro. Piv txwv, yog tias thawj zaug nro 15 N / cm thiab qhov kawg siab tshaj (siab tshaj plaws) 24 N / cm, qhov nro rau tom ntej peb qhov kev nruj yuav tsum raug nce los ntawm 3 N / cm txhua lub sijhawm nrog 20 feeb ntawm ob (Pause lub sijhawm yuav tsum tsis txhob pub tsawg tshaj 15min tshaj tsis pub tshaj 30min, vim tias ntev ntev ntev yuav tsis muaj txiaj ntsig zoo).

Nro nyob rau hauv qhov screen mesh kom ncav nws qhov siab tshaj plaws nro yuav tsum ruaj khov yam tsawg kawg 24h, dua li 48h. Thaum lub sij hawm no, lub mesh tshuaj ntsuam yuav poob 3 ~ 6N / cm ntawm nro vim "txias deformation", uas yog lub xeev xwm txheej ntawm cov ntaub ntawv polyester. Yog tias tsis muaj lub sijhawm no los ua haujlwm mesh thiab siv nws rau kev luam ntawv, daim duab yuav loj tshaj qhov nws yuav tsum, thiab tom qab cov xim sau npe yuav tsis yooj yim.

 

Ntaus nqi

Qhov pib thiab zaum kawg tso nro ntawm cov mesh tshuaj xyuas nyob ntawm qhov screen mesh specific Cross-section (SCS) thiab nws lub zog qhov tseem ceeb. Lub SCS ntawm lub mesh screen tsuas yog cov lej ntawm qhov chaw hauv cheeb tsam ntawm txhua lub voj vais ntawm ib chav tsev ntev (1 nti lossis 1 cm). Yog tias koj paub qhov screen mesh mesh (M c) thiab lub ntsej txoj kab (D), koj tuaj yeem suav qhov khej seem ntawm mesh, qhov tseeb, cov ntaub ntawv no tuaj yeem pom nyob rau hauv lub vijtsam mesh specifications table. Qhov kev qhia tawm yog SCS = π × Mc × D2 ÷ 4. Qee cov kab kos, xws li cov mesh loj sib piv los ntawm ST Media Group, tau suav qhov tseem ceeb rau SCS.

Vim hais tias qhov muaj zog lub zog ntawm cov txheej txheem polyesters kuj zoo ib yam, SCS tseem txiav txim siab tias theem kev quab yuam cov mesh npo yuav thev taus thiab qhov tsim nyog thiab pib lub ntsiab lus, tiam sis siab tshaj cov pa polyesters hauv qis stretch (LE) fabrics. Tshaj li cov seem yog cov ntaub ntawv tsuas txhim khu kev qha, nws yog siv los ntsuas lub zog ntawm lub vij voog.

Ua piv txwv txog qhov no, kuv tau xaiv ob peb lub tsho dawb thiab muab lawv faib rau ib seem ntawm ib sab (saib Cov Lus 1). Cov lus qhia no qhia tau meej tias mesh mesh ib leeg tsis tuaj yeem siv los txiav txim siab mesh lub zog (txawm tias qhov no yog txoj kev pom zoo los ntawm ntau tus neeg muag khoom). 420 mesh / inch, mesh inch ntawm 35 μm (420/35) yog loj tshaj qhov seem ntawm 196/48, 230/40 lossis 280/40 mesh, yog li nws tuaj yeem nrawm rau siab dua. Lub rooj kuj qhia tau hais tias cov mesh ntawm tib tus qauv mesh yog txawv li ntawm txoj kab uas hla ntawm lub ntsej muag (piv txwv li 196/48 mesh tsis tau ncav cuag li siab txog 196/55 mesh).

Raws li cov ntaub ntawv kuaj thiab tshawb fawb los ntawm ntau tus neeg muag khoom, kuv tuaj yeem cuam tshuam qhov mesh's cross-section rau nws thawj zaug thiab siab tshaj plaws. Daim duab teeb nro qhia hauv daim duab 1 qhia txog kev sib raug zoo no. Nco ntsoov tias daim ntawv qhia no tau npaj raws li cov ntsiab lus ntawm nruab nrab mus rau loj (152 cm dav los yog ntau tshaj) mesh. Vim yog "cov nyhuv ces kaum," yog tias nws tsis tuaj yeem ua rau, ib nrab lub phaj loj loj tsis tuaj yeem ncab mus rau tib qho loj li ib nrab ntawm cov ntawv me me.

Tus 25.4 cm × 25.4 cm npo mesh yog li ze ntawm lub ces kaum uas tag nrho cov tshuaj mesh yog yooj yim tensioned rau tib lub kaum sab xis. Txawm li cas los xij, raws li lub voj voog loj loj thiab deb ntawm qhov chaw, qhov sib txawv ntawm qhov nro nyob rau ntawm cov ces kaum thiab qhov nro hauv nruab nrab feem ua qhov tseem ceeb. Lub nrawm qis pom hauv daim duab 1 tsis tshua muaj qis rau mesh me me, tab sis lawv muaj kev ruaj ntseg, tsis hais seb qhov mesh loj npaum li cas koj siv.

Nrog rau daim phiaj no, qhov nqi qis ntawm kev tshuaj mesh tuaj yeem txiav txim siab yog tias qhov khej-seem ntawm lub voj mesh paub yog (piv txwv tias yog xam los ntawm xam). Piv txwv li, yog siv lub npo ntawm 86/100, nws qhov cross-section yog 0.00104 ntiv (piv txwv, 1.04 x 10-3 ntiv tes). Yog tias koj kos ib kab ntsug ntawm X-axis ntawm lub rooj ntawm 1.04 thiab sau tseg qhov chaw ntawm txoj kab txoj kab no hla lub pib thiab siab tshaj plaws curves, koj tuaj yeem nyeem qhov tseem ceeb ntawm Y-axis ntawm lub rooj (21 N / cm thiab 38 N / cm). Siv daim ntawv qhia no los ua qhov pib thiab qhov siab tshaj qhov nro rau qhov nruab nrab ntawm cov vijtsam loj. Pib los ntawm kev txiav txim siab ntawm qhov mesh cross section thiab tom qab ntawd kos tus kab ntsig hla ntawm tus nqi no ntawm X axis thiab dhau los ntawm qhov pib thiab qhov siab tshaj plaws. Nrhiav qhov nro ntawm sab laug (Y-axis) uas haum rau qhov point uas cov kab sib tshuam txhua qhov kev nkhaus. Ntoo seem yog zoo dua cov naj npawb ntawm mesh mesh relative intensity index. Qhov ntau dua tus nqi ntawm tus ntoo khaub lig, qhov siab zog ntawm qhov mesh npo, qhov ntau dua qhov nro nws yuav txhawb nqa. Nrog tib daim ntawv qhia, 280/40 lossis 196/48 npo ntsej muag yuav muab rau koj thawj zaug thiab qhov kawg ntawm kev sib tw ntawm 16 N / cm thiab 22 N / cm (ob lub vijtsam mesh muaj qhov sib nrug tib yam vim tias lawv yuav luag tib yam li hauv seem) .

Kuv xav tias, yuav nrhiav tau tag nrho cov nquag siv tshuaj mesh tshaj qhov cross section, qhov thib ob nyob hauv qhov kev ntsuas ntawm qhov nro ntsuas hauv daim duab 1 cim nrog lawv qhov tseem ceeb. Kos cov kab ntsug ntawm qhov taw tes uas tsim nyog ntawm X axis thiab siv ib qho xim txawv rau txhua qhov kev siv tshuaj meshs. Qhov twg hauv txoj kab ntawm txoj kab no dhau los ntawm thawj zaug thiab qhov ntau kawg curves yuav muaj ib qho kev tsim nqi ntawm nro muaj. Tom qab koj tas, koj tuaj yeem tswg daim duab ntawm qhov screen mesh making workshop.

Thiab nco ntsoov tias qhov siab tshaj plaws nro nqi tsis zoo ib yam li qhov screen mesh tuav nro ntawm luam ntawv. Tom qab 24 ~ 48h, qhov nqi qis yuav poob qis, qis tshaj qhov siab tshaj tus nqi nce thaum ncav ce. Thaum kawg, nco ntsoov tias daim ntawv nro hauv daim duab 1 yog tsim rau ob qho tib si LE thiab ib qho screen meshs. Qhov txawv tsuas yog tias LE screen mesh tso cai rau thawj zaug nrawm rau 2 mus rau 3 N / cm siab tshaj qhov kev tshuaj ntsuam mesh thiab tswj nws lub nro ntev tshaj qhov kev tshuaj ntsuam ntxaij mesh raws li qhov kev siv ntawm kev siv.

 

Kaum ntawm lub vijtsam mesh

Nws ywj siab ntawm hom tshuaj mesh siv (piv txwv li tus kheej tensioning, tensioning, thiab lwm yam) thiab hom tshuaj mesh siv. Mesh npo ntawm lub ces kaum ntawm lub voj voog yuav tsum muaj me ntsis nro li qhov ua tau. Vim tias muaj zog rog zoo li sib tshooj, thiab vim tias tsuas muaj ib qho me me ntawm cov tshuaj mesh nruab nrab ntawm ob lub pob taum nyob hauv kaum ntawm lub voj voos, qhov nro nce mus rau qhov tawg ntawm lub voj voos (saib daim duab 2). Yuav kom tsis txhob muaj qhov teeb meem no, cov ces kaum yuav tsum "softened" los ntawm kev ua kom lub mesh ua ntej los yog thaum lub sij hawm ncab.

 

Kev ntsuas, cuab yeej thiab khoom nro

Yuav kom ua lag luam tsis muaj kev yuam kev, cov tshuaj mesh yuav tsum muaj qhov ntsuas thiab khoom siv. Tsis tas li ntawd, yuav tsum siv tus ciav hlau npo ntawm lub voj voos, tus ntsuas lub nrawm yuav tsum tau siv rau txhua tus neeg. Ntsuas cov tsom thiab cov hluav taws xob muaj zog loj heev kuj yog qhov tseem ceeb los xyuas qhov mesh loj thiab mesh txoj kab thiab ntsuam xyuas qhov zoo ntawm kev npaj mesh. Re-tensioning ntawm lub mesh thav duab yuav tsum muaj tus cwj pwm tsim kho kom haum, thiab pneumatic tensioning ntaus ntawv yuav tsum tswj cov khoom tsim nyog los kho cov nro qis khov kho thiab tsis muaj qhov sib ntswg.

Thaum siv pneumatic clamps, lub clamps yuav tsum tau soj ntsuam ib ntus kom soj ntsuam zoo haujlwm. Thaum twg cov duab nyob hauv lub xeev ncav, siv cov roj hmab rub kom maj mam muab coj los saib seb nws puas yog ceev. Yog hais tias qhov clip tau tsiv lawm (raug ntaus) vim muaj kev sib ntaus, nws yuav tsum tau muab ntxuav, rov qab muab dua lossis hloov. Thaum lub pneumatic tensioning netly dheev siv ntau zog rau lub mesh netting, qhov tawg tawg feem ntau tshwm sim vim lub tendency ntawm nro quab yuam kom sib npaug. Ntau zaus, cov kauj teeb raug teem tsis thwj thiab tsis txav mus rau hauv ib txoj kab ncaj nraim thaum tensioning (saib Daim Duab 3). Qhov teeb meem no tseem tuaj yeem ua rau lub koog mus rau jam thiab dheev qog thaum lub sij hawm zawm.

Cov tshuaj qhuav qhuav (Ntxuav lub mesh nyob ntawm ces kaum ntawm lub voj voos npo kom muab ib qho khoom me me xwb.) Qhov teeb meem no ua rau qhov nyuaj ntawm cov cheeb tsam no yuav tsum ceev tshaj qhov nyuaj ntawm qhov chaw ntawm lub mesh Mloog. Yog tias lub voj voos ntawm lub kaum ntse ntse, lub thawv loj tshwj xeeb yog li ntawd, nws yuav dua lub voj mesh hauv qhov nro.Figure 2 vijtsam mesh nrawm rau ntawm kaum ntawm qhov kev nyuab siab kev nyuab siab thiab tau coated) Mesh yuav tsum nyob hauv lub vijtsam mesh qhuav chamber ntawm qhov kub tsis tshaj 38 ° C (100 ° F). Saum toj no kub, qhov siab nro screen mesh lov. Mesh ntas thiab tshuaj meshs muaj ntau yam sib txawv ntawm kev nthuav dav (aluminium ze li ob npaug ntawm tus nqi ntawm polyester), qhov sib txawv uas ua rau cov tshuaj meshs txhaum thaum los yog tom qab txoj kev ziab.

 

Mesh thav duab

Qhov tseem ceeb kawg vim li cas rau kev tshuaj mesh breakage yog tias qhov nrig mesh thav duab tsis zoo npaj. Cov thav ntawv yuav tsum tsis txhob ntse ntse los yog cov npoo uas kov qhov mesh tis. Tom qab siv txhua zaus, xuab zeb los yog sib tsoo nrog cov zuaj nplaum mas feem ntau tau rov qab sib txhaub los ntawm ntse ntse los sawv. Cov thav nyiab tshiab yuav muaj qhov tsis tseem ceeb thiab tsis sib haum, tab sis cov kev cuam tshuam thiab cov phuam no yuav ua rau lub ntsej muag ntxig rau qhov nrawm nrawm.

Thaum kawg, tighten lub mesh yuav tsum tau muab tso kom zoo zoo thiab muab tso rau hauv ib qho chaw tsis nws cov xwm txheej. Tsis txhob poob ntawm qhov chaw mesh tshwj xeeb ntawm lub kaum ntse ntse. Nrawm ntawm 1ft los ntawm cov ces kaum ntawm lub thawv yuav luag ib txwm shakes ib tug zoo-knit screen mesh.

 

Vijtsam mesh cov ntsiab lus tsim tau

Yuav kom txo cov xov tooj ntawm cov meshs faiv fab thiab tus nqi ntawm lub tshuaj mesh pov tseg, npo meshmasters yuav tsum nco ntsoov peb cov cai yooj yim ntawm qhov screen mesh khw:

1. Ncaw kom qeeb thaum lub network;

2. Kom paub qhov kev nruj siab ntawm txhua qhov screen meshs siv yog dab tsi;

3. Ua zoo saib xyuas cov cuab yeej, khoom siv thiab khoom siv.

Ua tib zoo saib dua thiab rov hais dua, ua tib zoo saib xyuas cov tswv yim no thiab kawm txog kev sib xyuas ntawm qhov kev sib tw. Cov neeg ua haujlwm mesh-making cov neeg ua haujlwm yuav tau txais txiaj ntsim los ntawm cov ntawv luam tawm ib nrab ntawm lub npo uas lawv tau tsim. Nyob rau tib lub sijhawm, koj lub tuam txhab yuav txuag tau ntau pua txhiab nyiaj hauv txhua lub xyoo rau ntawm tus nqi hloov cov tshuaj meshs, uas koj siv tau los txhim kho lwm yam ntawm koj cov haujlwm.

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WUXI JINFENG SILKSCREEN MESH MANUFACTURING CO, LTD.

Txij li thaum 1996, raws li kev cob qhia peb siv meshes zoo ntawm qhov zoo tshaj plaws nqi!
Chaw nyob : Jinxin industrial tsam, xibei nroog, wuxi nroog, jiangsu xeev, Suav teb 214194
Email : alex_jfmesh@yeah.net & alex-jfmesh@hotmail.com

Lub website : www.silkscreen-mesh.com

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