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防火板的厂家问题及处理方法

防火板生产中易出现的缺陷及解决方法
Defects and solutions in the production of fireproof boards
一、板面局部有白花
First, there are white flowers on the board.
产生的原因:
Causes:
1、表层纸含胶量不足或干燥中局部树脂固化
1. Insufficient gum content on surface paper or local resin curing in drying.
2、表层纸挥发物含量过低
2. The volatile content of surface paper is too low.
3、热压式压力不均匀
3. Hot pressing pressure is uneven.
4、忖垫材料无弹性
4. The cushion material is inelastic.
5、不锈钢板表面不平
5. Uneven surface of stainless steel plate
6、树脂反应过老,分子太大,树脂流动性大
6, the resin is too old, the molecule is too large, and the resin has great fluidity.
解决的方法:
Solution:
1、提高表层纸树脂含量或控制干燥温度,防止局部树脂固化
1, increase the resin content of the surface paper or control the drying temperature, so as to prevent local resin curing.
2、提高表层纸的挥发物含量
2. Increase the volatile content of surface paper.
3、检修热压机,改进加压面的均匀性
3. Overhaul the hot press and improve the uniformity of the pressure surface.
4、定期更换忖垫材料
4. Periodically replace the cushion material.
5、不锈钢板定期抛光
5. Stainless steel plates are regularly polished.
6、树脂应分析检验,不合格指标要求时停止使用
6. The resin should be analyzed and checked, and the disqualification should be stopped when required.
二、板面有湿花(水汽),边缘较为严重
Two, there are wet flowers on the board (water vapor), and the edges are more serious.
产生的原因:
Causes:
1、浸胶纸干燥后挥发物含量太高
1. The content of volatile matter is too high after dipping paper drying.
2、印刷木纹的油墨或染料所用的溶剂不合适
2. The solvent used for printing wood grain ink or dye is not suitable.
3、浸胶干燥后的胶膜纸吸湿(回潮)
3. Moisture absorption (moisture regain) of adhesive film after drying.
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解决的方法:
Solution:
1、降低浸胶纸干燥后的挥发物含量
1, reduce the volatile content of dipped paper after drying.
2、调换油墨(染料)用的溶剂
2. Solvent for printing ink (dyestuff)
3、注意胶膜纸的存放,一般可用塑料布遮盖
3, pay attention to the storage of plastic film, generally covered with plastic cloth.
三、装饰板表面开裂
Three. Surface cracking of decorative panels
产生的原因:
Causes:
1、树脂反应过嫩,分子太小
1, the resin is too tender, and the molecule is too small.
2、树脂固化不完全
2. Incomplete curing of resin.
3、表层胶膜纸含胶量太高
3. The glue content of the surface film paper is too high.
解决的方法:
Solution:
1、不合格的树脂停止使用
1, disqualified resin stop use.
2、适当提高热压温度或延长热压时间
2, increase the hot pressing temperature or extend the hot pressing time.
3、控制表层胶膜纸的含胶量
3. Control the glue content of the surface film paper.
四、装饰板分层
Four. Layering of decorative panels
产生的原因:
Causes:
1、胶膜纸挥发物含量太低,胶膜纸在干燥时局部树脂固化
1, the volatile content of adhesive film is too low, and the resin film is cured when drying.
2、胶膜纸树脂含量不够
2. The resin content of adhesive film is not enough.
3、压力过低或热压时间不够
3, too low pressure or hot pressing time is not enough.
4、胶膜纸之间有杂物
4, there is litter between plastic film paper.
解决的方法:
Solution:
1、控制挥发物含量不要过低,干燥温度不要过高,时间不要过长、防止树脂局部固化
1. Control volatile content should not be too low, drying temperature should not be too high, time should not be too long, prevent local curing of resin.
2、提高胶膜纸含胶量
2, increase the adhesive content of adhesive paper.
3、适当提高压力和延长加热时间
3, increase pressure and prolong heating time.
4、铺模时注意清楚杂物
4. Pay attention to sundries while laying the mold.
五、装饰板翘曲
Five, decorative plate warpage
产生的原因:
Causes:
1、各种原纸组织成分厚薄不均匀
1. Uneven tissue thickness of all kinds of base paper
2、胶膜纸含胶量不均匀,各处压力不一致
2, the adhesive content of film paper is uneven, and the pressure varies everywhere.
3、压制过程中保温后未能进行充分冷却
3. During the pressing process, it can not be fully cooled after thermal insulation.
解决的方法:
Solution:
1、各种原纸应符合工艺要求
1, all kinds of base paper should meet the technological requirements.
2、保持树脂浓度均匀,调整挤压辊轴的间隙
2. Keep the resin concentration uniform and adjust the clearance of the extrusion roller shaft.
3、冷却到50度以下在进行卸压
3, cooling down to 50 degrees below to relieve pressure.

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