復(fù)合井蓋是采用復(fù)合材料制作的井蓋，它的綜合性能是各種材料的井蓋中是屬一屬二的，下面是詳細(xì)的分析數(shù)據(jù)：

1 工藝方面:屬于厚壁注塑，這種方式無(wú)論是在國(guó)內(nèi)還是在國(guó)際上的同行業(yè)中都屬于一個(gè)技術(shù)難點(diǎn)。在失放應(yīng)力時(shí)，就易開(kāi)裂、易氣泡，收縮變形大，而且?guī)缀纬叽珉y控制。

2 與其它復(fù)合材料對(duì)比：屬于厚壁注塑，這種方式無(wú)論是在國(guó)內(nèi)還是在國(guó)際上的同行業(yè)中都屬于一個(gè)技術(shù)難點(diǎn)。在失放應(yīng)力時(shí)，就易開(kāi)裂、易氣泡，收縮變形大，而且?guī)缀纬叽珉y控制。

3 井蓋表面需要打孔時(shí)的優(yōu)勢(shì)：井蓋要有一定的剛性防止提鉆時(shí)板材顫動(dòng)，又要有一定彈性，當(dāng)鉆頭下鉆接觸的瞬間立即變形，使鉆頭精確地對(duì)準(zhǔn)被鉆孔的位置，保證鉆孔位置精確

通上以上三方面可以看出，復(fù)合井蓋無(wú)論是在工藝方面，與其它材料對(duì)比方面還是后期的二次加工方面都有著明顯的優(yōu)勢(shì)，所以得到了越來(lái)越廣泛的應(yīng)用。

Composite covers are made of composite material covers, its overall performance is covers various materials is a genus of two , the following is a detailed analysis of the data :

A process : the part of thick-walled injection molding, in this way , whether at home or in the same industry in the international arena belongs to a technical difficulty . Put stress on the loss , it is easy to crack , easy bubbles, shrinkage deformation, and geometry difficult to control.

2 Comparison with other composite materials : thick-walled injection molded part , in this way , whether at home or in the same industry in the international arena belongs to a technical difficulty . Put stress on the loss , it is easy to crack , easy bubbles, shrinkage deformation, and geometry difficult to control.

3 covers the surface of the punch when needed advantage: the covers have a certain rigidity to drill the plate to prevent vibration, but also have a certain flexibility , the moment when the drill bit contacted immediately following the deformation , so that the drill precisely aligned position is drilled ensure accurate drilling position

Pass on these three aspects can be seen both in the process of composite covers , the comparison with other materials or secondary processing aspects of late have a distinct advantage , so get a more widely used .

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深圳市風(fēng)采市政道路設(shè)施有限公司是廣東省成立最早、規(guī)模最大的從事新型復(fù)合材料防盜檢查井蓋的企業(yè)。主營(yíng)產(chǎn)品:電力溝蓋板;復(fù)合井蓋;水箅（水溝蓋板）;植草鋪磚凹井;電信井;樹(shù)脂花盆;護(hù)樹(shù)板。公司成立于2003年，注冊(cè)資金1228萬(wàn)元，是一家集研發(fā)、生產(chǎn)、銷售、服務(wù)為一體大型企業(yè)。總部位于深圳，北京設(shè)有分廠，總占地3萬(wàn)多平方米，建筑面積1萬(wàn)多平方米，擁有員工100多名，大型模壓設(shè)備20多臺(tái)。