1. Bonding points of four layer corrugated board

（1）瓦楞芯紙復(fù)合時，涂布膠水會增加瓦楞芯紙含水量，膠黏劑干燥后又要防止瓦楞芯紙脆化，因此選擇含水量少、滲透性緩，并易于均勻涂布的瓦楞芯紙復(fù)合用膠黏劑非常關(guān)鍵。

(1) When the corrugated core paper is compounded, the coating glue will increase the water content of the corrugated core paper. After the adhesive is dried, it will also prevent the corrugated core paper from embrittlement. Therefore, it is very important to choose the composite adhesive with low water content, slow permeability and easy uniform coating.

（2）在滿足復(fù)合后黏合強度的前提下，上膠量以盡可能少為原則。

(2) On the premise of meeting the bonding strength after composite, the amount of glue shall be as small as possible.

（3）壓瓦楞前，控制好復(fù)合后的瓦楞芯紙的濕度也很重要。濕度太大不但影響成型，而且會在復(fù)合時引起脫膠；濕度太小，會在瓦楞成型彎曲時使楞峰脆化破裂。

(3) Before pressing corrugating, it is also very important to control the humidity of the composite corrugating core paper. Too high humidity not only affects the molding, but also causes degumming during compounding; If the humidity is too low, the corrugated peak will be brittle and broken when the corrugated forming is bent.

（4）四層瓦楞紙板的瓦楞楞型應(yīng)由制輥企業(yè)根據(jù)兩層瓦楞芯紙和一層膠的厚度專門計算設(shè)計，以生產(chǎn)出理想的瓦楞紙板。

(4) The corrugated type of four layer corrugated board should be specially calculated and designed by professional roller making enterprises according to the thickness of two layers of corrugated core paper and one layer of glue, so as to produce ideal corrugated board.

（5）在真空吸附式單面機上加工四層瓦楞紙板時，要注意調(diào)節(jié)好吸附系統(tǒng)（吸附罩與瓦楞輥的位置、間隙和風(fēng)量）和加熱系統(tǒng)；復(fù)合后的瓦楞芯紙要求有更高的溫度才能將熱量傳遞到楞峰，滿足糊化溫度的要求。加厚的瓦楞芯紙硬度會變大，容易在成型后脫離瓦楞輥，影響涂膠和復(fù)合，產(chǎn)生高低楞、塌楞、脫膠和“木耳邊”等質(zhì)量問題，所以必須有足夠的吸附風(fēng)量和負(fù)壓以及加熱溫度，才能保證在瓦楞紙板成型后順利涂膠復(fù)合。

(5) When processing four layers of corrugated paperboard on the vacuum adsorption single-sided machine, attention should be paid to adjusting the adsorption system (the position, gap and air volume between the adsorption cover and the corrugated roller) and the heating system; The composite corrugated core paper requires a higher temperature to transfer heat to the corrugating peak to meet the requirements of gelatinization temperature. The hardness of thickened corrugated core paper will become larger, and it is easy to break away from the corrugating roller after forming, which will affect the gluing and compounding, and cause quality problems such as high and low corrugation, collapse, degumming and "ear edge". Therefore, there must be enough adsorption air volume, negative pressure and heating temperature to ensure smooth gluing and compounding after forming.

2.車速與紙板質(zhì)量的關(guān)系

2. The relationship between speed and paperboard quality

（1）應(yīng)以生產(chǎn)線更穩(wěn)定、更經(jīng)濟的速度為理想的調(diào)整速度。

(1) The most stable and economical speed of the production line should be the ideal adjustment speed.

（2）紙張的強度和濕度應(yīng)適合車速。

(2) The strength and humidity of the paper should be suitable for the vehicle speed.

（3）車速的波動會影響紙張的濕度控制。車速越穩(wěn)定，各層紙張的濕度控制越穩(wěn)定，紙板的質(zhì)量也越穩(wěn)定，此時好的供熱系統(tǒng)非常必要。

(3) The fluctuation of vehicle speed will affect the humidity control of paper. The more stable the speed is, the more stable the humidity control of each layer of paper is, and the more stable the quality of paperboard is. At this time, a good heating system is very necessary.

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