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.
璃钢波形板（波形瓦）连续生产工艺技术采用的玻璃纤维制品分为两种：一种以无捻粗纱为原料在生产线上直接制毡；另一种是采用玻璃纤维毡为原料进行生产。玻纤制品连续制板成型工艺工程：
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、下薄膜开卷
1. Lower film uncoiling
在牵引作用下移动，树脂从高位槽中流入配科桶。当与其它组分均匀混合后，经滤网过滤流下薄膜。树脂胶液在刮刀的作用下，在薄膜上形成一层均匀的胶液层。涂好胶液的薄膜继续移动，进入沉降室。无捻粗纱，通过四辊切割机切成定长纤维后，由吹风口变为松散自由落撒在胶液层上，形成均匀的短切纤维毡。为了增加毡的强度和防止短切纤维牵动，在毡上铺置数条纵向连续纤维。
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.
玻纤制品连续制板成型工艺
Continuous plate forming process of glass fiber products
2、覆盖上薄膜
2. Cover with film
在数排钢丝刷的作用下，经过几道压辊和刮板，纤维毡被树脂浸渍并排除其中的气泡而形成夹层玻璃毡预浸带———“夹芯带”。“夹芯带”移动经过成型模板，逐渐形成所要求的波纹。
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.
在波纹预成型后，经装有红外灯辐射加热的预热炉，使其预热后进入稳型固化区。稳型固化区设有三段加热炉。经稳型固化后，由卷取机构将上、下覆盖的薄膜收回，作下次重复使用。制品的水平运动是由牵引来完成的。由横向切割装置和纵向切割装置将连续的波板割成一定长度和宽度的玻纤制品。
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.
