nkhani

Malinga ndi chizolowezi cha masamba akuluakulu amphepo ndi a m'mphepete mwa nyanja, kukhazikika, mphamvu, ndi kusinthasintha kwa njirazinthu zopangidwa ndi zinthu zosiyanasiyanaDongosololi limazindikira mwachindunji moyo wa tsamba ndi mphamvu zopangira magetsi. Monga gawo lofunikira lolimbitsa chipolopolo cha tsamba, ukonde, m'mphepete motsogozedwa, m'mphepete motsatizana ndi zina, chopukutira chagalasi cha ulusi chakhala chinthu chofunikira kwambiri cha VARTM vacuum perfusion, hand paste/molding yokhala ndi kufanana kwabwino, kulowa mwachangu, kupangika bwino, komanso kumangirira mwamphamvu pakati pa zigawo. Kusankha chitsanzo cholakwika ndi kulemera, kupepuka kumabweretsa zolakwika pamwamba ndi kusowa kwa guluu mu perfusion, ndipo kulemera kudzakhudza mphamvu ya kapangidwe ndi magwiridwe antchito otopa. Pepalali limaphatikiza mwadongosolo chitsanzo chokhazikika, zofunikira zapakati, njira yosankha, ndi kufananiza kugwiritsa ntchito kwa chopukutira chodulidwa cha masamba amagetsi amphepo.

1. Chovala chodulidwa cha masamba amagetsi amphepo: malo oyambira ndi zofunikira zapakati

-Kupatuka kwa khalidwe pa gawo lililonse: ± 5%

-Chinyezi: ≤0.2%

-Kulimba kwa mphamvu: ≥30–180N/5cm (kuwonjezeka ndi kulemera kwa magalamu)

-Kutha kulowerera: kunyowa mwachangu, thovu lotsika mpweya, loyenera kutulutsa madzi m'malo otayira mpweya

-Kukana kwa nyengo/kukana kupopera mchere: zitsanzo za m'mphepete mwa nyanja ziyenera kulimbikitsa kukana dzimbiri

-Kukhazikika: palibe kutayika kwa ufa, palibe kuyika, palibe nthenga za tsitsi, zoyenera kuyika zokha

Chovala chodulidwa cha ulusi wagalasiMakamaka imagwira ntchito ngati kulimbitsa ma bearing reinforcement osagwiritsa ntchito main bearing, homogenization pamwamba, inter-layer transition, ndi deformation resistance mu tsamba. Imagwiritsidwa ntchito limodzi ndi nsalu yolowera mbali imodzi, nsalu yozungulira mbali zambiri, continuous felt, ndi surface felt kuti ipange structural layer yonse.

2. Mndandanda wa mitundu ndi zofunikira za tsamba la mphamvu ya mphepo lodulidwa

Mitundu yodziwika bwino mumakampani ndi EMC (emulsion)/CMC (ufa), ndipo m'lifupi mwake nthawi zambiri imagwiritsidwa ntchito 1250/1040/2500mm. Izi ndi mitundu yomwe imagwiritsidwa ntchito kwambiri popanga masamba ambiri.

1) Chitsanzo chokhazikika chikugwirizana ndi kulemera kwa gramu

-EMC225: 225g/㎡, wosanjikiza woonda, pamwamba pake pofewa

-EMC300: 300g/㎡, mphamvu yayikulu yapadziko lonse, chipolopolo/ukonde wapadziko lonse lapansi

-EMC450: 450g/㎡, kulimbitsa mphamvu yapakati, kulimbitsa mphamvu ya malo

-EMC600: 600g/㎡, cholimbitsa chokhuthala, kukhuthala kwa mizu/m'mphepete mwa kutsogolera

-EMC900: 900g/㎡, kulimbitsa kwambiri, kulimbitsa masamba akuluakulu m'deralo

2) Kusankha mtundu wa binder

-Emulsion mtundu wa EMC: mphamvu yayikulu, kufanana bwino, kuyanjana bwino kwa utomoni, chisankho choyamba cha vacuum perfusion

- Mtundu wa ufa wa CMC: wonyowa mwachangu, wokwera mtengo, woyenera kugwiritsa ntchito paste/njira yothandizira ndi manja

-Mphepo ya m'mphepete mwa nyanja, masamba amphamvu kwambiri: mndandanda wa EMC emulsion wofunikira kwambiri

3) Kufalikira ndi kufananiza njira

-1250mm/1040mm: masamba apakati ndi ang'onoang'ono, opangidwa ndi manja

- 2500mm ndi kupitirira apo: masamba akuluakulu, okhazikika okha, kuchepetsa kuzungulira

3. Kusankha ndi gawo: momwe mungagwirizanitse madera osiyanasiyana a masamba?

1) Pamwamba pa chipolopolo/pansi pa gel coat

-Yolangizidwa: EMC225 / EMC300

-Mfundo zazikulu: malo osalala, kuchepetsa mabowo a m'mbali, kukonza mawonekedwe ndi kukana nyengo

2) Gawo lalikulu la chipolopolo (kusintha/kufanana kwa gawo)

-Yolangizidwa: EMC300

-Mfundo zazikulu: kulinganiza mphamvu ndi kulowa mkati, kufananiza bwino ndi nsalu ya multi-axial

3) Kulimbitsa mbali za ukonde ndi chivundikiro cha mtengo

-Yolangizidwa: EMC450

-Mfundo zazikulu: kuuma kwambiri, kukana kudulidwa, komanso kukhazikika bwino kwa kapangidwe kake

4) Mphepete mwa kutsogolo, m'mphepete mwa kumbuyo, malo okhuthala mizu

-Yolangizidwa: EMC600 / EMC900

-Mfundo zazikulu: kupanga mwachangu zigawo zokhuthala, kuchepetsa chiwerengero cha zigawo, ndikuwonjezera kukana kugundana

5) Masamba amagetsi amphepo a m'mphepete mwa nyanja (kupopera mchere/kunyowa kwambiri)

-Yolangizidwa: nthenga ya tsitsi lochepa EMC300/450 + mankhwala onyowetsa omwe sagwira ntchito ndi hydrolysis

-Mfundo zazikulu: kulimbitsa kukana ukalamba ndikuchepetsa chiopsezo cha kugawikana