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石墨模具行业的四大矛盾和六个特点

发布时间:2019-10-17 14:37:22 浏览:74次

    

双色球红蓝走势图    DIYIGEMAODUN:CAIZHIDEGUIFANXINGYUCAILIAOXUQIUZENGJIADEMAODUN


    在上世纪后半期,石墨模具的材质并没有很明文的规定,石墨模具是对具有几种色彩的名贵木材的总称。面对石墨模具材质不规范的现状,2000年,国家质量技术监督局提出了石墨模具国家标准,把“5属8类33种”木材确定为石墨模具。而这33种石墨模具大多是几近绝迹和濒危的木种。正是这一石墨模具标准的提出,使这33种石墨模具生产的家具价值攀升。但是随着市场的发展,这33种木材的供应量远不及行业对木材的需求量。一方面,为了保证家具的质量以及收藏品的稀缺性,越是稀有的材质,其收藏价值越高,需要对石墨模具的材质进行严格的限定。另一方面,众多的企业加入石墨模具行业,市场对石墨模具的需求量日渐增加,需要有较大的木材供应量来满足市场的需求。现在市面上,海南黄花梨已是绝品,有价无市;越南黄花梨还有一些中上等料,但已是每吨几百万元的天价;紫檀已无中上料,而七八厘米粗的小料,价格高达百万元一吨;大红酸枝已经很少有2.2米长以上的木材,普通的、歪歪扭扭的、以前当柴烧的大红酸枝已经是20多万元一吨,而且再过几年,大红酸枝也会像海南黄花梨一样,有价无市,成为绝品。虽然近些年有些人在海南种黄花梨,采用了大量的催长技术,据说已经长到一二十厘米的直径,但是锯开一看,里面的芯材也只有几厘米,而且木材没有野生黄花梨的天然香味,可见石墨模具木材的生长是没有终南捷径的,只能是等几百年、上千年的时间方能等到可用之材。

石墨模具|石墨棒|石墨坩埚

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