龙里县螺旋管|重庆鲁润螺旋管|优质小口径螺旋管

重庆鲁润管业有限公司座落于重庆市大渡口区龙文钢材市场，水陆交***利。公司主要生产销售：螺旋钢管，焊接钢管，方矩管，H型钢，无缝管，直缝钢管，镀锌钢管，什么是螺旋管，球墨铸铁管，dn1400螺旋管，角钢，槽钢，龙里县螺旋管，钢板，工字钢，弯头，法兰及各种镀锌产品等。

螺旋管工厂占地面积10万平方米，注册资金1000万元，总资产8000万元，公司拥有多条***的螺旋钢管生产线。生产口径219mm-2420mm(壁厚5mm-20mm)的双面埋弧螺旋焊钢管，年生产能力10万吨以上。

公司配有钢管防腐加工厂，***对钢管进行内外壁防腐加工，钢管外壁主要有三油两布，五油三布，环氧煤沥青漆，高分子涂料。钢管内壁采用饮用水涂料IPN8710-2B，水泥砂浆及各种环氧涂料。

重庆鲁润管业为您提供螺旋管规格表

公称外径

nominal O.D

mm公称壁厚　Nominal Wall Thickness mm5.05.56.07.08.09.010.011.012.013.014.015.016.018.020.022.027333.0436.2839.5145.92

323.939.3243.1847.0454.7062.3269.89

(325)39.4643.3347.2654.9062.5470.13

355.643.2347.4851.7360.1868.5776.92

(377)45.8850.3954.8963.8772.8081.67

406.449.4454.3259.2468.9478.6088.2097.75

(426)51.9157.0362.1472.3382.4692.55102.59

45755.7361.2466.7377.6988.5899.43110.23120.98131.60142.34

508

74.2886.4898.64110.75122.81134.82146.78158.69

(529)

77.3890.11102.78115.41127.99140.51152.99165.42

(559)

81.8295.29108.70122.07135.38148.65161.87175.04

610

89.37104.09118.76133.39147.96162.48176.96191.39

(630)

92.33107.54122.71137.82152.89167.91182.88197.80

(660)

96.77112.72128.63144.48160.29176.05191.76207.42

711

104.31121.52138.69155.80172.87189.88206.85223.76

(720)

105.64123.08140.46157.80175.09192.32209.51226.65

(762)

130.33148.75167.12185.44203.72221.94240.11258.24

813

139.13158.81178.44198.02217.55237.03256.46278.88

(820)

140.34160.19179.99199.75219.45239.10258.71276.26297.77317.23256.01394.58432.96914

178.74200.06222.93244.95266.92288.84310.72332.54354.31397.74440.95483.96(920)

179.92202.19224.41246.58268.70290.77312.79334.76356.68400.40443.91486.131016

198.86223.49248.08272.62297.10321.54345.93370.27394.56443.02491.26539.30(1020)

199.65224.38249.07273.70298.39322.82347.31371.75396.1444.79493.23541.471220

296.39327.95357.47386.94416.36445.73475.58533.58591.88649.981420

347.71362.21416.66451.06485.41519.71553.96622.36690.52758.491620

397.03436.46475.84515.17554.46593.60632.87711.14789.17867.001820

446.35490.71535.02579.29623.50667.67711.79799.92887.81975.512020

495.67544.96594.21643.40692.55741.65796.70888.70986.461084.212220

544.99599.21653.39707.52761.60815.63869.61977.481085.111192.532420

594.34635.5712.62771.62830.20889.66948

螺旋焊管的原料有带材和板材，厚度在19mm以上用板材。用带材时为保证前后板卷首尾对焊时连续供料，可用活套装置，也可用飞焊小车对焊连接，如图所示，优质小口径螺旋管，飞焊小车上可将从开卷到对焊的整个备料操作在其沿轨道移动过程中完成。当前卷带钢的尾部被对焊机的后夹紧器咬住时，小车则以与成形一预焊机的同步速度拉向前进，对焊结束后，松开后夹紧器，小车自行回到原位。用板材时需先在作业线外将单张钢板对焊成板条，然后送上作业流程线用飞焊小车对焊连接。对焊皆用自动埋弧焊，在相当于管体内表面进行，未焊透的地方于成形、预焊后，再在管体外表面补焊，然后才对螺旋焊缝进行内、外焊。板带进入成形机前，必须根据管径、壁厚和成形角将板边预弯一定曲率，使得成形后边部与中部的变形曲率一致，防止出现焊缝区突起的“竹节”缺陷。预弯后进入螺旋成形器成形(见螺旋成形)、预焊。为提高生产力，多采用一条成形一预焊线与多条内外本焊线相配合。这样既能提高焊缝质量，又能大幅度增加产量。预焊一般采用焊接速度较快的保护气体电弧焊或高频电阻焊，全长焊接，本焊采用多极自动埋弧焊。