螺旋風(fēng)管的接縫是周向的，接縫的強(qiáng)度比徑向的直縫強(qiáng)度要高許多，所以能確保在1.5倍工作壓力下接縫處無裂開，因?yàn)槠湓Y料鍍鋅帶鋼與整張鍍鋅鋼板比較，報(bào)價(jià)較低，加上其工廠化出產(chǎn)和標(biāo)準(zhǔn)的標(biāo)準(zhǔn)化，使得造價(jià)要比矩形風(fēng)管低。山東通風(fēng)管道加工
The spiral wind pipe joint is circumferential seams, the strength is much higher than that of straight radial intensity, so can ensure that the joints at 1.5 times the working pressure without cracking, because the raw materials and the whole piece of galvanized steel galvanized steel sheet, a lower price, plus its factory production standard and standardization the cost is lower than the pipe, rectangular wind.
別的因?yàn)槠渲?、吊架需量少，安裝工作量少，所以總成本較低。因?yàn)榫匦物L(fēng)管的四角易發(fā)生湍流，減少了有效通流面積，空氣流動(dòng)性好，有效通流面積大，所以商品的二次噪聲小，因?yàn)槠鋸?qiáng)度大。
In addition, because of its small amount of support and hanger, less installation work, so the total cost is low. Because the four corners of the rectangular duct are prone to turbulence, the effective flow area is reduced, the air flow is good, and the effective flow area is large, so the noise of the commodity is small, because the intensity is large.
螺旋風(fēng)管的整個(gè)行業(yè)要發(fā)展，他依靠并不是他的，應(yīng)該是這個(gè)行業(yè)的整體素質(zhì)。
Spiral duct of the whole industry to develop, he is not relying on his price, should be the overall quality of the industry.
到的目標(biāo)，各企業(yè)均圍繞的主題開展相關(guān)活動(dòng)， 在新產(chǎn)品開發(fā)、產(chǎn)品設(shè)計(jì)、制造工藝、生產(chǎn)線技術(shù)改造等方面加大投入力度，促進(jìn)設(shè)備的升級(jí)。
To the goal of energy saving, energy saving and environmental protection enterprises all around the theme of the activities, to increase investment in new product development, product design, manufacturing technology, production line technological transformation, promote the upgrading of equipment.
上一篇：通風(fēng)的動(dòng)力是室內(nèi)外空氣溫度差所產(chǎn)生的
下一篇：正確清洗通風(fēng)風(fēng)管的方法和條件
