二分彩

 
 

方管

  厂家分享Q345B方管的耐磨性能体现在哪?
  保证方管曲折和校直最有效的方法
  厂家分享Q345B方管退火与正火的缺陷及补救措施?
  厂家分享方管热处理后出现的质量缺陷怎么解决
  厂家总结方管断面设计应注意的事项包括?
  厂家防止方管坯分层的三点措施
  当前位置 -> 行业资讯- 螺旋冷拔钢管和冷拔钢管有什么不同呢? 发布时间:(2018/12/11)

螺旋冷拔钢管和冷拔钢管有什么不同呢?


冷拔钢管是指用钢带或钢板弯曲变形为圆形、方形等形状后再焊接成的、表面有接缝的钢管。 冷拔钢管采用的坯料是钢板或带钢。20世纪30年代以来,随着优质带钢连轧生产的迅速发展以及焊接和检验技术的进步,焊缝质量不断提高,冷拔钢管的品种规格日益增多,并在越来越多的领域代替了无缝钢管。冷拔钢管比无缝钢管成本低、生产效率高。

Cold drawn pipe refers to the bending deion of circular and square shape after welded, surface jointed steel pipe or steel plate. The blank of cold drawn steel tube is used in steel plate or strip. 20 30 century since the 1990s, with the rapid development of high-quality strip rolling production and progress of welding and testing technology, and constantly improve the weld quality, varieties and specifications of cold drawn steel tube increasing, and instead of the seamless steel pipe in more and more fields. Than the cold drawn steel pipe seamless steel pipe with low cost and high production efficiency. 钢管分无缝、焊管。焊管分直缝冷拔钢管、螺旋钢管。冷拔无缝钢管分ERW(高频电阻焊)、LSAW(直缝埋弧焊)。螺旋管焊接工艺也是埋弧焊(简称SSAW)与LSAW 的区别就是焊缝形式,与ERW的区别是焊接工艺的区别,埋弧焊(SAW)是要添加介质的(焊丝、焊剂),ERW不需要,ERW是通过中频加热熔融的。钢管按生产方法可分为两大类:无缝钢管和冷拔钢管。冷拔无缝钢管按生产方法可分为:热轧冷拔无缝钢管、冷拔管、精密钢管、热扩管、冷旋压管和挤压管等。无缝钢管用优质碳素钢或合金钢制成,有热轧、冷轧(拔)之分。

The steel pipe, seamless pipe. Branch pipe straight seam steel pipe, spiral steel pipe. Cold drawn seamless steel tube ERW (HFRW), LSAW (SAWL). Spiral pipe welding technology of submerged arc welding (SSAW) is the difference between LSAW and ERW is the form of welding, the distinction is the welding process, submerged arc welding (SAW) is added to the medium (wire, flux), ERW does not require ERW, is through the interte frequency melting. Steel pipe according to the production method can be divided into two categories: seamless steel tubes and steel pipes. Seamless steel pipe according to the production method can be divided into: hot-rolled seamless pipe, cold drawing tube, precision steel tube, thermal expansion pipe, tube and pipe extrusion cold spinning. Seamless steel pipe made of high quality carbon steel or alloy steel, hot-rolled, cold-rolled (drawn) branch.

冷拔无缝钢管生产工艺简单,生产效率高,成本低,发展较快。螺旋焊管的强度一般比冷拔无缝钢管高,能用较窄的坯料生产管径较大的焊管,还可以用同样宽度的坯料生产管径不同的焊管。但是与相同长度的直缝管相比,焊缝长度增加30~100%,而且生产速度较低。因此,较小口径的焊管大都采用直缝焊,大口径焊管则大多采用螺旋焊。

The production process of cold drawn seamless steel tube is simple, high production efficiency, low cost, rapid development. The strength of the spiral welded pipe than cold drawn seamless steel tube is high, with a narrow billet production of large diameter pipe, can also use the same width of the billet production of different pipe diameters. But with the same length of straight pipe, weld length of 30~100%, and the production rate is low. Therefore, most of the small caliber pipe welded, large diameter welded pipe mostly using spiral welding.

目前螺旋钢管产品又有了新的产品钢塑复合管以热浸镀锌钢管作基体,经粉末熔融喷涂技术在内壁(需要时外壁亦可)涂敷塑料而成, 钢管性能优异。与镀锌管相比,具有抗腐蚀、不生锈、不积垢、光滑流畅、清洁无毒,使用寿命长等优点。据测试,钢塑复合管的使用寿命为镀锌管的三倍以上。与塑料管相比,具有机械强度高,耐压、耐热性好等优点。

The spiral steel pipe products and new products of steel plastic composite pipe to hot dip galvanized steel as matrix, the powder melting spraying technology in the wall (wall also need) coated with a plastic, steel pipe with excellent performance. Compared with galvanized pipe, anti corrosion, no rust, no fouling, smooth, clean, non-toxic, long life etc.. According to the test, the service life of steel plastic composite pipe for galvanized pipe is more than three times. Compared with the plastic pipe, has the advantages of high mechanical strength, good heat resistance, pressure etc..

螺旋冷拔钢管和冷拔钢管有什么不同呢?还有就是这两种钢管那种好。其实大可不必纠结于这个问题。螺旋冷拔钢管本身就是冷拔钢管的一种,只是在生产工艺上有些不同罢了。具体说来,焊管按焊缝的形式分为冷拔无缝钢管和螺旋焊管。两者一般使用范围不一样。

Spiral steel pipes and steel pipes is what is different? There is the two kind of good steel. You don't need to be entangled in this issue. A spiral cold drawn pipe itself is cold drawn steel tube, only in the production process are different. Specifically, according to the weld pipe into the form of cold drawn seamless steel tube and spiral welded pipe. Both the general scope of use is not the same.

一般DN350以上,会用螺旋钢管,螺旋钢管因为焊缝是螺旋的,故所承受液体的压力会分布在管子各侧,增强管子的强度。同时一般大管子如果直接用钢板直焊卷起,需较大钢板,大大增加了制作难度,故管径较大的会使用螺旋管。至于哪个好,因为适用范围不一致,不必去深究。

Generally more than DN350 with spiral steel pipe, spiral steel pipe weld is because of the spiral, so under the pressure of liquid can be distributed on each side of the tube, to enhance the strength of pipe. At the same time, if the general large pipe directly with steel plate welding for large steel plate, rolled up, greatly increased the difficulty of making, it will use large diameter spiral pipe. As to what is good, because the scope is not consistent, do not have to go.

螺旋钢管(双面埋弧螺旋焊管)是以带钢卷板为原材料,经常温挤压成型,以自动双丝双面埋弧焊工艺焊接而成的螺旋缝钢管。另外还有一种就是卷焊钢管,它是将钢板卷筒后焊接,焊缝为竖直焊缝。螺旋焊管是将钢板螺旋卷筒进行焊接,焊缝为螺旋形。

Spiral pipe (double spiral submerged arc welded pipe) is a strip coil as raw material, often warm extrusion molding, spiral with automatic double wire submerged arc welding process double-sided welded pipe joints. In addition there is a welding steel pipe, it is rolling steel plate after welding, the weld seam. Spiral welded pipe is a steel spiral roll welding, weld spiral.

两者的区别主要有: 1、前者焊缝是一条直线,而后者是一条螺旋角不同的螺旋线。 2、前者每生产一种规格的钢管,就要有一种特定宽度的原料带钢或钢板;后者同一种宽度规格的带钢可以生产出不同直径的钢管。 3、由于焊缝形状的不同,在承受内压时,螺旋焊缝处合成应力是冷拔无缝钢管主应力的60-85%。因此,在相同工作压力下,同一管径的螺旋焊管比冷拔无缝钢管壁厚可减小。 4、在中小直径焊管的生产中,前者具有较大的优势,在大直径焊管的生产中,后者具有绝对优势。

The main difference between the two: 1, the weld is a straight line, while the latter is a helix helix angle different. 2, the production of each steel pipe specifications, there should be a certain width of the strip steel or steel plate; the same width strip specifications can produce steel tubes with different diameter. 3, the weld shape is different, under internal pressure, welding stress is the synthesis of cold drawn seamless steel tube stress 60-85%. Therefore, in the same working pressure, the spiral welded pipe of same diameter ratio of cold drawn seamless steel pipe wall thickness can be reduced. 4, the small diameter of welded pipe production, the former has more advantages in large diameter welded pipe production, the latter has the absolute advantage.

方管

版权所有@转载请注明:/shownews.asp?id=2120
相关阅读:预计明日国内方管价格或将弱稳 | 12月11日无锡市场方管价格行情继续下探 | 无锡焊管市场价格回归窄幅波动气氛渐强
本站网址: 来源:鑫盛源方管  浏览次数:305 
 
 
网站导航 | 方管厂家介绍 | 方矩管展示 | 方管知识 | 方管规格 | 销售网络 | 价格行情 | 客户留言 | 方管销售电话 | 博客
地图 Sitemap 方管
 
 
友情链接:爱乐透彩票平台  爱乐透彩票注册  爱乐透彩票官网  爱乐透彩票  爱乐透彩票  七彩彩票  爱乐透彩票  

免责声明: 本站资料及图片来源互联网文章,本网不承担任何由内容信息所引起的争议和法律责任。所有作品版权归原创作者所有,与本站立场无关,如用户分享不慎侵犯了您的权益,请联系我们告知,我们将做删除处理!