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不銹鋼螺旋風(fēng)管制作成型要點(diǎn)

發(fā)布人:http://m.hwzxw.net   發(fā)布時(shí)間:2023-02-10 18:05:42

原材料即帶鋼卷,焊絲,焊劑。在投入前都要經(jīng)過嚴(yán)格的理化檢驗(yàn)。

Raw materials are strip steel coil, welding wire and flux. Strict physical and chemical tests shall be conducted before input.

帶鋼頭尾對接,采用單絲或雙絲埋弧焊接,在卷成鋼管后采用自動埋弧焊補(bǔ)焊。

The head and tail butt joint of strip steel shall be welded by single wire or double wire submerged arc welding, and the automatic submerged arc welding repair welding shall be adopted after rolling into steel pipe.

不銹鋼螺旋風(fēng)管成型前,帶鋼經(jīng)過矯平剪邊刨邊,表面清理輸送和予彎邊處理。

Before forming the stainless steel spiral air duct, the strip steel is leveled, trimmed, planed, cleaned, transported and pre-bent.

采用電接點(diǎn)壓力表控制輸送機(jī)兩邊壓下油缸的壓力,保障了帶鋼的平穩(wěn)輸送。

The electric contact pressure gauge is used to control the pressure of the down cylinder on both sides of the conveyor to ensure the smooth delivery of the strip steel.

采用外控或內(nèi)控輥式成型。

External control or internal control roll forming is adopted.

采用焊縫間隙控制裝置來保障焊縫間隙符合焊接要求,管徑,錯邊量和焊縫間隙都得到嚴(yán)格的控制。

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The weld gap control device is used to ensure that the weld gap meets the welding requirements, and the pipe diameter, misalignment and weld gap are strictly controlled.

內(nèi)焊和外焊均采用電焊機(jī)進(jìn)行單絲或雙絲埋弧焊接,從而獲得穩(wěn)定的焊接質(zhì)量。

Electric welding machine is used for single wire or double wire submerged arc welding for internal and external welding, so as to obtain stable welding quality.

焊完的焊縫均經(jīng)過在線連續(xù)超聲波自動傷儀檢查,保障了螺旋焊縫的沒損檢測覆蓋率。若有缺陷,自動報(bào)警并噴涂標(biāo)記,生產(chǎn)工人依此實(shí)時(shí)調(diào)整工藝參數(shù),及時(shí)消掉缺陷。

The welded seams are inspected by online continuous ultrasonic automatic flaw detector, which ensures the nondestructive detection coverage of spiral welds. If there is a defect, it will automatically alarm and spray the mark, and the production workers will adjust the process parameters in real time to eliminate the defect in time.

采用空氣等離子切割機(jī)將鋼管切成單根。

The steel pipe is cut into single pieces by air plasma cutting machine.

切成單根鋼管后,每批鋼管都要進(jìn)行嚴(yán)格的先檢制度,檢查焊縫的力學(xué)性能,化學(xué)成份,溶臺狀況,不銹鋼螺旋風(fēng)管表面質(zhì)量以及經(jīng)過沒損探傷檢驗(yàn),保障制管工藝合格后,才能正式投入生產(chǎn)。

After cutting into a single steel pipe, each batch of steel pipes shall be subject to a strict pre-inspection system to check the mechanical properties of the weld, chemical composition, melting table condition, surface quality of the stainless steel spiral air duct, and nondestructive flaw detection to ensure that the pipe manufacturing process is qualified before they can be officially put into production.

焊縫上有連續(xù)聲波探傷標(biāo)記的部位,經(jīng)過手動超聲波和X射線復(fù)查,如確有缺陷,經(jīng)過修補(bǔ)后,再次經(jīng)過沒損檢驗(yàn),直到確認(rèn)缺陷已經(jīng)消掉。

The parts with continuous sound wave flaw detection mark on the weld shall be rechecked by manual ultrasonic and X-ray. If there is any defect, it shall be repaired and undergo non-destructive inspection again until it is confirmed that the defect has been eliminated.

帶鋼對焊焊縫及與螺旋焊縫相交的丁型接頭的所在管,經(jīng)過X射線電視或拍片檢查。

The pipe where the butt weld of strip steel and the T-joint intersected with the spiral weld are located shall be inspected by X-ray television or film.

每根不銹鋼螺旋風(fēng)管經(jīng)過靜水壓試驗(yàn),壓力采用徑向密封。試驗(yàn)壓力和時(shí)間都由鋼管水壓微機(jī)檢測裝置嚴(yán)格控制。試驗(yàn)參數(shù)自動打印記錄。

Each stainless steel spiral air duct is subjected to hydrostatic pressure test, and the pressure is sealed radially. The test pressure and time are strictly controlled by the steel pipe water pressure microcomputer detection device. Test parameters are automatically printed and recorded.

管端機(jī)械加工,使端面垂直度,坡口角和鈍邊得到準(zhǔn)確控制。

The pipe end is machined to accurately control the end perpendicularity, groove angle and blunt edge.


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