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1. Before processing Shenzhen white iron air ducts, it is necessary to first check whether the selected materials meet the relevant quality requirements, and whether there is a factory certificate of conformity or quality appraisal document. If there are no relevant documents, the appearance inspection should be carried out, and the following requirements should be met:

(1) 深圳白鐵風(fēng)管加工所選的板材表面應(yīng)光滑平整、厚度均勻，并不得存在裂紋、砂眼、結(jié)疤及刺邊和銹蝕的情況存在。

(1) The surface of the selected board for processing the Shenzhen white iron air duct should be smooth and flat, with uniform thickness, and there should be no cracks, sand holes, scars, burrs, or rust.

(2) 關(guān)于型鋼其應(yīng)等型、均勻，不應(yīng)有裂紋、氣泡、窩穴以及其他會(huì)影響質(zhì)量的缺陷。

(2) Regarding the section steel, it should be of equal and uniform shape, without cracks, bubbles, cavities, and other defects that may affect quality.

(3) 所選的其他材料，也不能因具有缺陷，導(dǎo)致成品強(qiáng)度的降低或影響其使用的效能。

(3) The selected other materials should not have defects that reduce the strength of the finished product or affect its effectiveness in use.

2、關(guān)于深圳白鐵風(fēng)管加工和配件，表面應(yīng)平整、圓弧均勻、縱向接縫應(yīng)錯(cuò)開。同時(shí)期咬口縫也應(yīng)要緊密，寬度均勻。焊縫則應(yīng)作外觀的檢查，不該有氣孔、砂眼、夾渣、裂紋等缺陷存在。

2. Regarding the processing and accessories of Shenzhen white iron air ducts, the surface should be flat, the arc should be uniform, and the longitudinal joints should be staggered. At the same time, the biting seam should also be tight and uniform in width. The weld seam should undergo an appearance inspection, and there should be no defects such as pores, sand holes, slag inclusions, or cracks.

3、關(guān)于制作金屬風(fēng)管和配件，其外徑或外邊長度可以允許的偏差為：小于或等于300mm為-1mm，大于300mm為-2mm，其中圓形法蘭內(nèi)徑或矩形法蘭內(nèi)邊的尺寸，可以允許偏差為+2mm，不平度不應(yīng)大于2mm。

3. Regarding the production of metal air ducts and accessories, the allowable deviation for their outer diameter or outer edge length is -1mm for those less than or equal to 300mm, and -2mm for those greater than 300mm. The allowable deviation for the inner diameter of circular flanges or the inner edge of rectangular flanges is+2mm, and the unevenness should not exceed 2mm.

4、深圳白鐵風(fēng)管加工系統(tǒng)內(nèi)的所有直角轉(zhuǎn)彎處，其均應(yīng)安裝消聲彎頭，并內(nèi)設(shè)鍍鋅鐵板導(dǎo)流片。

4. All right angle bends in the Shenzhen white iron air duct processing system should be equipped with sound-absorbing elbows and galvanized iron plate guide vanes.

5、關(guān)于風(fēng)道保溫層，需要使用聚苯乙烯泡沫板進(jìn)行制作。保溫層邊部的接合部位，則應(yīng)采用梯臺(tái)或榫槽結(jié)構(gòu)，并用樹脂進(jìn)行粘貼。

5. For air duct insulation layer, polystyrene foam board shall be used for production. The joints at the edges of the insulation layer should adopt a ladder or tenon groove structure and be pasted with resin.

6、其風(fēng)道采用的機(jī)械咬口，應(yīng)規(guī)整嚴(yán)密，接口內(nèi)的表面打玻璃膠。

6. The mechanical bite used in its air duct should be neat and tight, and the surface inside the interface should be coated with glass glue.

7、對(duì)于風(fēng)道與風(fēng)口的接合，需要用帶保溫層的軟管進(jìn)行連接。

7. For the connection between the air duct and the air outlet, it is necessary to use a hose with an insulation layer for connection.

關(guān)于深圳白鐵風(fēng)管加工制作時(shí)需要使用到的設(shè)備和風(fēng)管制作的介紹就是這么多了，大家看完應(yīng)該就有大概的了解了吧，以后碰到風(fēng)管的加工制作可以參考上面的內(nèi)容，保證加工的質(zhì)量。

There are so many introductions about the equipment and duct production required for the processing and production of Shenzhen white iron ducts. After reading them, you should have a general understanding. In the future, when encountering the processing and production of ducts, you can refer to the above content to ensure the quality of processing.

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