下載螺旋管是如何成形的/螺旋鋼管?chē)?guó)標(biāo)規(guī)格及其理論重量表
螺旋管
螺旋成形
用螺旋成形器將管坯圍繞管體軸線螺旋纏卷成螺旋焊管管筒的變形過(guò)程。
成形原理如圖1所示，帶材軸線與螺旋焊管軸線在俯視投影面上相交成一成形角a。設(shè)帶寬為B，焊管外徑為D，則各參數(shù)之間存在的函數(shù)關(guān)系是：B=Dcosa。由式可知螺旋成形比較靈活，只要適當(dāng)改變成形角a，同一寬度的帶材即可生產(chǎn)不同外徑的焊管。但在選定成形角范圍或帶材寬度與管徑的比值范圍時(shí)，必須綜合權(quán)衡管材生產(chǎn)的經(jīng)濟(jì)性與管體強(qiáng)度。因?yàn)槌尚谓谴笮?duì)這兩者的影響是矛盾的，如成形角取大了雖可降低管體內(nèi)靜壓力在焊縫上引起的垂直張應(yīng)力，提高管體強(qiáng)度，但卻降低了管體軸向出口速度，降低生產(chǎn)率；加大了單位管長(zhǎng)上的焊縫長(zhǎng)度，提高成本。所以通常選用帶材寬度與管徑比在1.3-2.2，相應(yīng)的成形角在65.36’-45.32’。生產(chǎn)的螺旋焊管長(zhǎng)度實(shí)際上只受運(yùn)輸條件的限制。
螺旋鋼管規(guī)格|螺旋鋼管理論重量表
版本1：螺旋鋼管規(guī)格及其理論重量表
|
公稱外徑
nominal O.D
mm |
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 |
|
273 |
33.04 |
36.28 |
39.51 |
45.92 |
|
|
|
|
|
|
|
|
|
|
|
|
|
323.9 |
39.32 |
43.18 |
47.04 |
54.70 |
62.32 |
69.89 |
|
|
|
|
|
|
|
|
|
|
|
(325) |
39.46 |
43.33 |
47.26 |
54.90 |
62.54 |
70.13 |
|
|
|
|
|
|
|
|
|
|
|
355.6 |
43.23 |
47.48 |
51.73 |
60.18 |
68.57 |
76.92 |
|
|
|
|
|
|
|
|
|
|
|
(377) |
45.88 |
50.39 |
54.89 |
63.87 |
72.80 |
81.67 |
|
|
|
|
|
|
|
|
|
|
|
406.4 |
49.44 |
54.32 |
59.24 |
68.94 |
78.60 |
88.20 |
97.75 |
|
|
|
|
|
|
|
|
|
|
(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 |
|
|
|
|
|
|
|
(559) |
|
|
81.82 |
95.29 |
108.70 |
122.07 |
135.38 |
148.65 |
161.87 |
175.04 |
|
|
|
|
|
|
|
610 |
|
|
89.37 |
104.09 |
118.76 |
133.39 |
147.96 |
162.48 |
176.96 |
191.39 |
|
|
|
|
|
|
|
(630) |
|
|
92.33 |
107.54 |
122.71 |
137.82 |
152.89 |
167.91 |
182.88 |
197.80 |
|
|
|
|
|
|
|
(660) |
|
|
96.77 |
112.72 |
128.63 |
144.48 |
160.29 |
176.05 |
191.76 |
207.42 |
|
|
|
|
|
|
|
711 |
|
|
104.31 |
121.52 |
138.69 |
155.80 |
172.87 |
189.88 |
206.85 |
223.76 |
|
|
|
|
|
|
|
(720) |
|
|
105.64 |
123.08 |
140.46 |
157.80 |
175.09 |
192.32 |
209.51 |
226.65 |
|
|
|
|
|
|
|
(762) |
|
|
|
130.33 |
148.75 |
167.12 |
185.44 |
203.72 |
221.94 |
240.11 |
258.24 |
|
|
|
|
|
|
813 |
|
|
|
139.13 |
158.81 |
178.44 |
198.02 |
217.55 |
237.03 |
256.46 |
278.88 |
|
|
|
|
|
|
(820) |
|
|
|
140.34 |
160.19 |
179.99 |
199.75 |
219.45 |
239.10 |
258.71 |
276.26 |
297.77 |
317.23 |
256.01 |
394.58 |
432.96 |
|
914 |
|
|
|
|
178.74 |
200.06 |
222.93 |
244.95 |
266.92 |
288.84 |
310.72 |
332.54 |
354.31 |
397.74 |
440.95 |
483.96 |
|
(920) |
|
|
|
|
179.92 |
202.19 |
224.41 |
246.58 |
268.70 |
290.77 |
312.79 |
334.76 |
356.68 |
400.40 |
443.91 |
486.13 |
|
1016 |
|
|
|
|
198.86 |
223.49 |
248.08 |
272.62 |
297.10 |
321.54 |
345.93 |
370.27 |
394.56 |
443.02 |
491.26 |
539.30 |
|
(1020) |
|
|
|
|
199.65 |
224.38 |
249.07 |
273.70 |
298.39 |
322.82 |
347.31 |
371.75 |
396.14 |
44.79 |
493.23 |
541.47 |
|
1220 |
|
|
|
|
|
|
296.39 |
327.95 |
357.47 |
386.94 |
416.36 |
445.73 |
475.58 |
533.58 |
591.88 |
649.98 |
|
1420 |
|
|
|
|
|
|
347.71 |
362.21 |
416.66 |
451.06 |
485.41 |
519.71 |
553.96 |
622.36 |
690.52 |
758.49 |
|
1620 |
|
|
|
|
|
|
397.03 |
436.46 |
475.84 |
515.17 |
554.46 |
593.60 |
632.87 |
711.14 |
789.17 |
867.00 |
|
1820 |
|
|
|
|
|
|
446.35 |
490.71 |
535.02 |
579.29 |
623.50 |
667.67 |
711.79 |
799.92 |
887.81 |
975.51 |
|
2020 |
|
|
|
|
|
|
495.67 |
544.96 |
594.21 |
643.40 |
692.55 |
741.65 |
796.70 |
888.70 |
986.46 |
1084.21 |
|
2220 |
|
|
|
|
|
|
544.99 |
599.21 |
653.39 |
707.52 |
761.60 |
815.63 |
869.61 |
977.48 |
1085.11 |
1192.53 |
|
2420 |
|
|
|
|
|
|
594.34 |
635.5 |
712.62 |
771.62 |
830.20 |
889.66 |
948.60 |
1066.26 |
1183.75 |
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