不銹鋼風(fēng)管應(yīng)的規(guī)范或工藝方法來指導(dǎo)不銹鋼風(fēng)管的焊接工藝。因而，依據(jù)以往的施工經(jīng)驗(yàn)，總結(jié)出一套適應(yīng)施工建議、提升施工質(zhì)量、處理施工難題、確保應(yīng)用的不銹鋼風(fēng)管制造方式。在作用的前提下，能符合外觀質(zhì)量的需求。目前，我們已經(jīng)在項(xiàng)目中實(shí)施了此方法，并取得了良好的效果。
The specification or process method of stainless steel air duct shall guide the welding process of stainless steel air duct. Therefore, based on the previous construction experience, a set of stainless steel air duct manufacturing methods that meet the construction requirements, improve the construction quality, deal with the construction problems, and ensure the application are summarized. Under the premise of function, it can meet the requirements of appearance quality. At present, we have implemented this method in the project and achieved good results.
特性：焊接品質(zhì)好，形變小，外型好；風(fēng)管加固形式新穎，降低成本；適用范圍適用于薄厚1.0mm或以上S彎螺旋風(fēng)管的焊接和施工。
Features: good welding quality, small deformation, good appearance; The reinforcement form of the air duct is novel and the cost is reduced; The scope of application is applicable to the welding and construction of S-shaped spiral cyclone tube with a thickness of 1.0mm or more.
工藝原理：在鍍鋅板 風(fēng)管產(chǎn)品標(biāo)準(zhǔn)的基礎(chǔ)上，選用氬弧焊焊接1.0厚不銹鋼鋼板矩形 風(fēng)管。氬弧焊不僅用以風(fēng)管的橫向連接，還用以風(fēng)管的縱向拼湊，即風(fēng)管接頭均采用氬弧焊焊接。風(fēng)管選用不銹鋼角鋼框架和斜角加固法，選用不銹鋼板加固，以保障風(fēng)管的剛度要求。
Process principle: on the basis of the product standard of galvanized sheet air duct, argon arc welding of 1.0 thick stainless steel rectangular air duct is selected. Argon arc welding is not only used for the horizontal connection of the air duct, but also for the longitudinal splicing of the air duct, that is, the air duct joints are welded by argon arc welding. Stainless steel angle steel frame and inclined angle reinforcement method are used for the air duct, and stainless steel plate is used for reinforcement to ensure the rigidity requirements of the air duct.
不銹鋼風(fēng)管組對，設(shè)定加強(qiáng)架：切割好材料后設(shè)定2個不銹鋼板組，焊接前在好風(fēng)管組上設(shè)定已制做好的加強(qiáng)架。風(fēng)管縱向焊接：固定風(fēng)管夾具，縱向焊接風(fēng)管。風(fēng)管縱向焊縫為角焊縫。那么，不銹鋼風(fēng)管的制造要點(diǎn)是什么呢？
Stainless steel air duct assembly and reinforcement frame setting: set 2 stainless steel plate groups after cutting the materials, and set the fabricated reinforcement frame on the air duct group before welding. Longitudinal welding of air duct: fix the air duct clamp and weld the air duct longitudinally. The longitudinal weld of air duct is fillet weld. So, what are the manufacturing points of stainless steel air duct?
風(fēng)管側(cè)焊：風(fēng)管翻邊高度保持在15mm。假如翻邊太小，不僅不便焊接操作和夾具應(yīng)用，并且焊接時容易將高溫轉(zhuǎn)移至風(fēng)管上，導(dǎo)致風(fēng)管形變。假如翻邊太大，材料便會消耗。
Side welding of air duct: the flanging height of air duct shall be kept at 15mm. If the flanging is too small, it is not only inconvenient for welding operation and fixture application, but also easy to transfer high temperature to the air duct during welding, resulting in air duct deformation. If the flanging is too large, the material will be consumed.
焊接鋼筋骨架:將設(shè)置好的不銹鋼角鋼框架移至各節(jié)流管橫向翻邊接頭處，用夾具夾緊，風(fēng)管橫向翻邊接頭與不銹鋼筋焊接框架。這樣可以避免角鐵與風(fēng)管直接焊接引起的形變。因?yàn)椴讳P鋼角鋼加固框架只是起加以固定功效，不銹鋼角鋼加固框架與風(fēng)管翻邊的焊接可采取中斷焊接。然后對不銹鋼風(fēng)管開展酸洗鈍化處理，以提升風(fēng)管的防腐特性。
Welding reinforcement framework: move the set stainless steel angle steel frame to the transverse flanging joint of each throttle pipe, clamp it with clamps, and weld the frame between the transverse flanging joint of the air duct and the stainless steel bar. This can avoid deformation caused by direct welding of angle iron and air duct. Because the stainless steel angle steel reinforcement frame is only used for fixing, the welding between the stainless steel angle steel reinforcement frame and the air duct flange can be interrupted. Then carry out acid pickling and passivation treatment on the stainless steel air duct to improve the anti-corrosion characteristics of the air duct.
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