The common production technologies of glass fiber reinforced unsaturated polyester resin corrugated board and flat plate are hand lay up and spray forming, but there are some problems such as uneven thickness, bubbles and low production efficiency. The continuous plate making process began in the era of FRP industry changing from military to civilian after World War II. The continuous production technology of corrugated tile was realized in France, and then in Europe, America, Japan and other countries, the continuous production technology of corrugated tile was industrialized and further improved and developed. Continuous sheet forming technology is made of felt, resin impregnation, gel forming, solidification, cutting, washing, drying and other links. These links are continuously completed by the production line. Glass fiber, resin, catalyst and accelerator are continuously added from one end of the production line; Cut the required FRP products from the other end of the production line.
璃鋼波形板（波形瓦）連續(xù)生產(chǎn)工藝技術(shù)采用的玻璃纖維制品分為兩種：一種以無捻粗紗為原料在生產(chǎn)線上直接制氈；另一種是采用玻璃纖維氈為原料進(jìn)行生產(chǎn)。玻纖制品連續(xù)制板成型工藝工程：
There are two kinds of glass fiber products used in the continuous production technology of glass fiber reinforced plastic corrugated board (corrugated tile): one is to make felt directly on the production line with twistless roving as raw material; the other is to make felt directly on the production line with twistless roving as raw material; The other is using glass fiber felt as raw material. Glass fiber products continuous plate forming process engineering:
1、下薄膜開卷
1. Lower film uncoiling
在牽引作用下移動(dòng)，樹脂從高位槽中流入配科桶。當(dāng)與其它組分均勻混合后，經(jīng)濾網(wǎng)過濾流至下薄膜。樹脂膠液在刮刀的作用下，在薄膜上形成一層均勻的膠液層。涂好膠液的薄膜繼續(xù)移動(dòng)，進(jìn)入沉降室。無捻粗紗，通過四輥切割機(jī)切成定長(zhǎng)纖維后，由吹風(fēng)口變?yōu)樗缮⒆杂陕淙鲈谀z液層上，形成均勻的短切纖維氈。為了增加氈的強(qiáng)度和防止短切纖維牽動(dòng)，在氈上鋪置數(shù)條縱向連續(xù)纖維。
The resin moves under the action of traction and flows into the mixing barrel from the high-level tank. After being evenly mixed with other components, it flows to the lower membrane through the filter screen. Under the action of the scraper, the resin glue forms a uniform glue layer on the film. The coated film continues to move into the settling chamber. Twistless roving is cut into fixed length fiber by four roll cutting machine, and then it changes from air outlet to loose and falls freely on the glue layer to form uniform chopped fiber felt. In order to increase the strength of the felt and prevent the short cut fiber from pulling, several longitudinal continuous fibers are laid on the felt.
玻纖制品連續(xù)制板成型工藝
Continuous plate forming process of glass fiber products
2、覆蓋上薄膜
2. Cover with film
在數(shù)排鋼絲刷的作用下，經(jīng)過幾道壓輥和刮板，纖維氈被樹脂浸漬并排除其中的氣泡而形成夾層玻璃氈預(yù)浸帶———“夾芯帶”。“夾芯帶”移動(dòng)經(jīng)過成型模板，逐漸形成所要求的波紋。
Under the action of several rows of wire brushes, after several rollers and scrapers, the fiber felt is impregnated with resin and bubbles are eliminated, thus forming the "sandwich belt" of laminated glass felt“ The "sandwich belt" moves through the forming template and gradually forms the required ripple.
在波紋預(yù)成型后，經(jīng)裝有紅外燈輻射加熱的預(yù)熱爐，使其預(yù)熱后進(jìn)入穩(wěn)型固化區(qū)。穩(wěn)型固化區(qū)設(shè)有三段加熱爐。經(jīng)穩(wěn)型固化后，由卷取機(jī)構(gòu)將上、下覆蓋的薄膜收回，作下次重復(fù)使用。制品的水平運(yùn)動(dòng)是由牽引來完成的。最后由橫向切割裝置和縱向切割裝置將連續(xù)的波板割成一定長(zhǎng)度和寬度的玻纖制品。
After the corrugated preform is preheated by a preheating furnace with infrared lamp radiation heating, it enters the stable curing zone. There are three stages of heating furnace in the stable solidification zone. After stable curing, the upper and lower covered films are retracted by the coiling mechanism for reuse next time. The horizontal movement of products is completed by traction. Finally, the continuous wave plate is cut into glass fiber products of certain length and width by transverse cutting device and longitudinal cutting device.
