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42CrMo alloy steel, copper alloy, 20CrNiSi round steel, 5083 alumi

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2A12-T4 aluminum plate

total supply
1000000 kg
MOQ
10 kg
brand
进口,国产
area
Shanghai
Delivery period:
Shipped within 1 days from the date of payment by the buyer
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Product Details
 2A12-T42A12-T42A12-T4  2A12-T4 2A12-T4 2A12-T4 2A12-T4 2A12-T4
2A12-T4

(一)国内氧化铝产量保持高位令进口需求降低。上半年,我国氧化铝产量累计为1748.47万吨,同比增长17.83%,3~6月连续4个月产量环比增加。6月产量达到历史最高的314.25万吨,同、环比分别增长29.32%和0.78%,导致对氧化铝进口需求明显减弱。

 (二)氧化铝国内外存在价差抑制企业进口动力。有关资料显示,自3月份以来国内氧化铝价格已经下滑7%,6月3日现货氧化铝周报价约为每吨2550-2650元,低于3月的2800元,而此间国际氧化铝价格上涨约3%,因现货原料供应有限。现货澳大利亚氧化铝报价约为每吨410-415美元,FOB基准,折算约2681-2714元,高于国内报价[1],造成企业对氧化铝进口动力不足,进口量下降。

2A12-T4 2A12-T4 2A12-T4 2A12-T4 2A12-T4 2A12-T4
2A12-T4

根据铝合金件的装饰需要,其表面可以制成直纹、乱纹、螺纹、波纹和旋纹等几种表面拉丝效果。

  

3-1直纹拉丝:

直纹拉丝是指在铝板表面用机械磨擦的方法加工出直线纹路。它具有刷除铝板表面划痕和装饰铝板表面的双重作用。直纹拉丝有连续丝纹和断续丝纹两种。连续丝纹可用百洁布或不锈钢刷通过对铝板表面进行连续水平直线磨擦(如在现有装置的条件下手工技磨或用刨床夹住钢丝刷在铝板上磨刷)获取。改变不锈钢刷的钢丝直径,可获得不同粗细的纹路。断续丝纹一般在刷光机或擦纹机上加工制得。制取原理:采用两组同向旋转的差动轮,上组为快速旋转的磨辊,下组为慢速转动的胶辊,铝或铝合金板从两组辊轮中经过,被刷出细腻的断续直纹。

3-2乱纹拉丝:

乱纹拉丝是在高速运转的铜丝刷下,使铝板前后左右移动磨擦所获得的一种无规则、无明显纹路的亚光丝纹。这种加工,对铝或铝合金板的表面要求较高。

3-3螺纹拉丝:

螺纹拉丝是用一台在轴上装有圆形毛毡的小电机,将其固定在桌面上,与桌子边沿成60度左右的角度,另外做一个装有固定铝板压茶的拖板,在拖板上贴一条边沿齐直的聚酯薄膜用来限制螺纹竞度。利用毛毡的旋转与拖板的直线移动,在铝板表面旋擦出宽度一致的螺纹纹路。 

3-4波纹拉丝:

波纹拉丝一般在刷光机或擦纹机上制取。利用上组磨辊的轴向运动,在铝或铝合金板表面磨刷,得出波浪式纹路。

3-5旋纹拉丝:

旋纹也称旋光,是采用圆柱状毛毡或研石尼龙轮装在钻床上,用煤油调和抛光油膏,对铝或铝合金板表面进行旋转抛磨所获取的一种丝纹。它多用于圆形
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