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PVC發泡產品如何檢測

  • 點擊數量:76
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(1)板面:手感光滑平整,機械紋理不明顯,表面顏色無色差,乳白色,表面無污點,無明顯小坑,無針孔,無粗大孔眼,裂縫。注:非乳白色的發泡板滲入回收廢棄板,不屬于環保板,環保板不含鉛(含量小于歐美標準)。

(2)板側邊:切口平整,孔隙細密,無針孔,無粗大孔眼,掉粉不嚴重,無蜂孔,開料纖維自脫落,不蹦口。 注:出現上述情況要留心了,后序做成品工序麻煩。

(3)厚度測量:卡尺立放表面時,接觸緊密無縫隙,左右厚度均勻,左中右測量,偏差是否很大,厚度偏差正負0.2MM為正常。

(4)板重量算法:重量(克)=長*寬*厚度(厘米)*密度,

(5)密度算法:密度=重量(克)/長*寬*厚(厘米)。

共擠板.png


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