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Analysis:Discolor mainly caused by resin,pigment and hardener quality no good.Solution:1)Change to good stability resin.2)Changeto heat hardener to ensure that all hardener is fully reactionwithin the...

Analysis:Dark scratches mainly appear in darkcolor slab and pure color slab, it caused by not properly abrasive andpolishing speed.Solution:1)Use good quality abrasive and goodabrasive composition 2)P...

Analysis:Check the thickness caused frompressing line or from polishing line.Solution:1) If the thickness caused bypressing line： (a)   Checkwhether the feeding is uniformity.(b)  ...

AnalysisBend caused by unreasonable formula, impropersolidification process, improper storage way of the semi-finished slab orfinished slab.Solution:1)Adopt reasonable formula2)Adjust the temperature ...

Analysis:Rustspot is mainly caused by metal affect, it mainly appear in the white colorslab. After the resin contact with the iron, it creates a ferric compound sinkinto the resin interior and surface...

Analysis:Watermark is caused by thenonuniform motion of the raw materials and colors when ununiformity pressing .Solution:1)Adjust the pressure and vibrationfrequency properly.2)Adopt mature formula, ...

Analysis1)Firstly check the crack (afterpolishing) is caused by before solidification or after solidification.2)The crack before solidification iswave shape, this problem is because the Small grain po...

AnalysisLump is caused by the improperformula (Small grain powder too much) or improper mixing. It mainly saw in the Fineseries slab.Solution:1)Adjust the powder percentage properly.2)Adjust the resin...

AnalysisHolecaused by unreasonable formula, and removing the kraft paper impertinently,feeding nonuniform or mould bending also will caused hole. Solution:1). Check if the proportion of Smallgrain pow...

Analysis:Pinhole is caused by theinsufficient vacuum degree.Solution:Below things must be followedstrictly before shift change:1)Vacuum pump cooling water cycle pumpmust be work normally.2) Hydrops in...

Analysis：Impurity & motley caused by theimpurity raw material and improper operation. This problem specially appearancein the Fine series slab and single color slab.Solution：1) Select the raw ma...