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Math.ceil(new Date()/3600000) </script>  </div> </div> <div class="content"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">內襯塑料鋼管的質量可簡單地通過以下方法進行識別:</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">1. 破壞性實驗方法:</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">Z簡單的方法就是把整個國家的頂部扔到地上。如果它壞了，那絕對不是一件好事。一般一個模型的內襯都有一兩個預備材料，你扔試試也無妨。</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">2. 外觀檢查方法:</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">A.外觀是否變形。塑料襯里外觀變形大，一般質量不是很好，說明為了加母料，B料加得太大，這種塑料襯里也可能繼續，但不耐用</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">B、塑料襯里外觀光亮。塑料襯里的外表面應平整光滑，如磨砂面，但不像鏡子那樣光亮。過亮是指原料的塑化溫度相對較低或加熱時溫度過高，使塑料沒有韌性。當然，表面太粗糙是不好的。</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">C.看塑料襯里的兩端。塑料襯里的兩端都是鋸切面的，看兩端是否有孔，當然有孔是很不好的產品。</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">D.除非特殊，塑料襯里由模具一次性成型。再次加工后的塑料襯里一般由廠家進行加工，以掩蓋過度變形?？梢韵胂?，塑料襯里的質量不是很好。</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">3、防火圖紙法:</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255);">剪下一小片，用較少的火成膠，打開后，拉出的絲綢越長，說明塑料襯里的質量越好。</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; color: rgb(73, 73, 73); font-family: 微軟雅黑, arial, sans-serif; font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;"><img src="http://www.volcanovisual.com/data/upload/image/20210303/1614757455473028.jpg" 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