做激光刀模所用的膠合木板都有哪些？

膠合木板(ban)是原(yuan)木浸(jin)水(shui)后通(tong)過(guo)卷(juan)刨切割成按尺寸(cun)要求的連續薄片板(ban)，用(yong)機器降低(di)水(shui)分到適當標(biao)準值，再用(yong)尿素甲醛膠水(shui)以十字交叉方式(shi)多層粘(zhan)結而成的板(ban)材。粘(zhan)結前的薄片板(ban)應按標(biao)準分好等級(ji)且進行(xing)過(guo)預壓(ya)處(chu)理。

做(zuo)激光(guang)刀模常用的(de)有：國產(chan)楊木(mu)膠合板，國產(chan)樺木(mu)膠合板，進(jin)口芬蘭(lan)膠合板等。

膠合木(mu)(mu)板(ban)(ban)(ban)的(de)構(gou)成(cheng)：樺(hua)木(mu)(mu)、針(zhen)葉木(mu)(mu)、楊木(mu)(mu)、雜木(mu)(mu)，準確地說(shuo)，作為(wei)激光(guang)(guang)刀模常用的(de)標(biao)準膠合木(mu)(mu)板(ban)(ban)(ban)應由樺(hua)木(mu)(mu)與(yu)針(zhen)葉木(mu)(mu)組成(cheng)，而現今市場上(shang)的(de)楊木(mu)(mu)板(ban)(ban)(ban)、雜木(mu)(mu)板(ban)(ban)(ban)、樺(hua)面(mian)楊芯板(ban)(ban)(ban)、樺(hua)面(mian)雜芯板(ban)(ban)(ban)等板(ban)(ban)(ban)的(de)適(shi)(shi)應激光(guang)(guang)切割性(xing)(xing)與(yu)機械性(xing)(xing)能（彈性(xing)(xing)、應力等）均難適(shi)(shi)應作為(wei)高要求包裝(zhuang)產品(pin)的(de)激光(guang)(guang)刀模板(ban)(ban)(ban)的(de)要求。

樺木(mu)板的(de)表(biao)(biao)面(mian)(mian)(mian)木(mu)紋紋路較(jiao)輕、較(jiao)美觀(guan)，芬蘭(lan)膠合(he)木(mu)板行業將它分為五(wu)個等級(ji)(ji)，由高(gao)到低依次(ci)是A、B、S、BB、WG，A級(ji)(ji)為可(ke)(ke)直(zhi)接(jie)上(shang)清漆(qi)的(de)高(gao)質量(liang)表(biao)(biao)面(mian)(mian)(mian)；B級(ji)(ji)為適(shi)用(yong)高(gao)質量(liang)涂料、染(ran)色(se)、清漆(qi)的(de)表(biao)(biao)面(mian)(mian)(mian)；S級(ji)(ji)為適(shi)用(yong)高(gao)質量(liang)油(you)漆(qi)、覆膜的(de)表(biao)(biao)面(mian)(mian)(mian)；BB級(ji)(ji)為適(shi)用(yong)標(biao)準內部油(you)漆(qi)的(de)表(biao)(biao)面(mian)(mian)(mian)；WG級(ji)(ji)為無須要(yao)(yao)求的(de)表(biao)(biao)面(mian)(mian)(mian)。針(zhen)葉(xie)木(mu)薄片板的(de)表(biao)(biao)面(mian)(mian)(mian)木(mu)紋紋路較(jiao)重，芬蘭(lan)膠合(he)木(mu)板行業將它也(ye)分為五(wu)個等級(ji)(ji)，由高(gao)到低依次(ci)是E、EI、EⅡ、EⅧ、EIV，E級(ji)(ji)為可(ke)(ke)直(zhi)接(jie)上(shang)清漆(qi)的(de)高(gao)質量(liang)表(biao)(biao)面(mian)(mian)(mian)；EEI級(ji)(ji)為適(shi)用(yong)高(gao)質量(liang)涂料、染(ran)色(se)、清漆(qi)的(de)表(biao)(biao)面(mian)(mian)(mian)；EE II級(ji)(ji)為適(shi)用(yong)普通油(you)漆(qi)、對(dui)表(biao)(biao)面(mian)(mian)(mian)要(yao)(yao)求不(bu)高(gao)的(de)表(biao)(biao)面(mian)(mian)(mian)；EEⅢ級(ji)(ji)為適(shi)用(yong)于(yu)對(dui)表(biao)(biao)面(mian)(mian)(mian)要(yao)(yao)求很低的(de)表(biao)(biao)面(mian)(mian)(mian)；EEIV級(ji)(ji)為適(shi)用(yong)于(yu)對(dui)表(biao)(biao)面(mian)(mian)(mian)沒要(yao)(yao)求的(de)表(biao)(biao)面(mian)(mian)(mian)。

以(yi)適合用(yong)(yong)(yong)作高檔激(ji)光(guang)(guang)刀模板(ban)(ban)的(de)芬(fen)蘭(lan)(lan)膠合木(mu)板(ban)(ban)為(wei)例，該(gai)類(lei)別芬(fen)蘭(lan)(lan)板(ban)(ban)的(de)基版為(wei)標準結(jie)構(gou)的(de)樺木(mu)板(ban)(ban)，內用(yong)(yong)(yong)尿素甲醛(quan)膠水以(yi)十字(zi)交叉方式粘結(jie)，以(yi)經(jing)過(guo)砂光(guang)(guang)處理的(de)S級和BB級樺木(mu)薄板(ban)(ban)為(wei)表面，正反(fan)兩面均施(shi)無色(se)或綠(lv)色(se)透明UV固(gu)化漆，邊(bian)緣以(yi)透明丙烯(xi)酸(suan)涂料封邊(bian)。由于(yu)芬(fen)蘭(lan)(lan)板(ban)(ban)生(sheng)產(chan)工藝中有去疤節處理及厚(hou)度公差控制嚴格特點，故(gu)高檔激(ji)光(guang)(guang)刀模多采用(yong)(yong)(yong)，以(yi)利于(yu)刀線的(de)裝嵌和回彈(dan)膠彈(dan)力的(de)保證(zheng)。