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螺旋管是以帶鋼卷板為原材料,經常溫擠壓(yā)成型,以(yǐ)自動雙絲雙麵埋弧焊(hàn)工藝(yì)焊接而成的螺旋縫鋼管.
(1)原材料(liào)即帶鋼卷,焊絲,焊劑。在投入前都要(yào)經過嚴格的理化檢驗。
(2)帶(dài)鋼(gāng)
公(gōng)稱外徑 nominal O.D |
公稱壁厚 Nominal Wall Thickness mm |
|||||||||||||||
5.0 |
5.5 |
6.0 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
18.0 |
20.0 |
22.0 |
|
219 |
26.39 |
28.96 |
31.51 |
36.60 |
41.63 |
|
|
|
|
|
|
|
|
|
|
|
273 |
33.04 |
36.28 |
39.51 |
45.92 |
|
|
|
|
|
|
|
|
|
|
|
|
325 |
39.46 |
43.33 |
47.26 |
54.90 |
62.54 |
70.13 |
|
|
|
|
|
|
|
|
|
|
377 |
45.88 |
50.39 |
54.89 |
63.87 |
72.80 |
81.67 |
|
|
|
|
|
|
|
|
|
|
426 |
51.91 |
57.03 |
62.14 |
72.33 |
82.46 |
92.55 |
102.59 |
|
|
|
|
|
|
|
|
|
457 |
55.73 |
61.24 |
66.73 |
77.69 |
88.58 |
99.43 |
110.23 |
120.98 |
131.60 |
142.34 |
|
|
|
|
|
|
508 |
|
|
74.28 |
86.48 |
98.64 |
110.75 |
122.81 |
134.82 |
146.78 |
158.69 |
|
|
|
|
|
|
529 |
|
|
77.38 |
90.11 |
102.78 |
115.41 |
127.99 |
140.51 |
152.99 |
165.42 |
|
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|
|
|
|
(3)成型前,帶鋼經(jīng)過矯平、剪邊、刨邊,表麵清理輸送和予彎邊處理。(4)采用(yòng)電接點壓力表控製輸(shū)送機兩(liǎng)邊壓下油缸的壓(yā)力,確保了帶鋼的(de)平穩輸送。
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