CN104759485A - Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface - Google Patents

Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface Download PDF

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Publication number
CN104759485A
CN104759485A CN 201510050150 CN201510050150A CN104759485A CN 104759485 A CN104759485 A CN 104759485A CN 201510050150 CN201510050150 CN 201510050150 CN 201510050150 A CN201510050150 A CN 201510050150A CN 104759485 A CN104759485 A CN 104759485A
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surface
reinforcing
band
steel
pipe
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CN 201510050150
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Chinese (zh)
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康希
李想
邹建
王海桥
李伟
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湖南双马新材料科技有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/122Making tubes or metal hoses with helically arranged seams with welded or soldered seams

Abstract

The invention discloses a production method of single layer spiral bellows with the flat interior surface and reinforcing ribs on the external surface. The production method is characterized in that a band-shaped metal thin steel plate is pressed in a band-shaped steel allowable tensile strength range and yield strength range by a pressing molding device to form a longitudinal reinforcing rib groove along band-shaped steel, the band-shaped steel with the pressed longitudinal reinforcing rib groove is conveyed into a pipe manufacturing device and is rolled, in rolling, the left straight edge of a second ring of a steel band flattens and covers the inner concave surface of the right reinforcing rib groove of a first ring of the steel band, the inner and outer coped joints are subjected to on-line continuous welding so that a single layer metal pipe structure with the flat interior surface and the reinforcing ribs on the external surface is formed, a cutting process is carried out by an on-line cutting device according to desired length, two ends of the cut pipe with the desired length are welded to flanges and then the pipe is subjected to inner and outer anticorrosion treatment to form a metal pipe finished product. The production method can product the single layer spiral bellows with the flat interior surface and the reinforcing ribs on the external surface.

Description

内表面平整外表面具加强筋的单层螺旋波纹管的生产方法 The method of producing a flat inner surface of the outer mask bead monolayer spiral bellows

技术领域 FIELD

[0001] 本发明属于流体输送管道的生产方法,具体涉及一种有效率地生产在重量轻的前提下能达到防腐蚀、抗静电、阻燃、抗冲击等性能,同时保证内表面平整外表面具加强筋的单层螺旋波纹金属管的生产方法。 [0001] The present invention pertains to a method for producing a fluid pipeline, particularly it relates to an efficient production of lightweight under the premise to achieve corrosion, antistatic, flame retardant, impact resistance and other properties, while ensuring the smooth outer surface of the mask the method for producing single bead spiral corrugated metal pipe.

背景技术 Background technique

[0002] 随着我国经济的发展,对低压流体输送管材的要求在不断提高,目前市场需求旺盛,供应缺口较大,尤其是需要一种在重量轻的前提下能达到防腐蚀、抗静电、阻燃、抗冲击等性能的管道。 [0002] As China's economic development, the requirements of low pressure fluid pipe continues to increase, the current market demand, supply gap is large, especially the need for a can achieve anti-corrosion, anti-static in the lightweight premise, conduit retardant properties, impact resistance and the like. 内表面平整外表面具加强筋的单层螺旋波纹金属管符合国家管材发展趋势,具有很好市场前景。 The inner surface of the outer surface has a flat monolayer spiral ribs corrugated metal tube pipe line with national trends, has good market prospects. 它具有强度高、耐腐蚀、承压能力强等特点,可以广泛用于在瓦斯抽放、输送燃气、污水等领域。 It has high strength, corrosion-resistant, strong pressure, etc., can be widely used in the drainage, the transport gas, sewage, and other fields. 目前,现有的管道生产设备在保证外壁用加强筋来提高抗环向的冲击力的同时无法使其管道内壁平滑。 At present, the existing production equipment to ensure the outer wall of the pipe with stiffener ring to increase the impact of anti direction of the pipe wall at the same time not so smooth. 为此李家勇发明了“一种螺旋加强筋复合管”(专利号:ZL20081028610.1)的生产方法,该生产方法是塑料挤出模头挤出塑料板带,用塑料板带把薄壁金属管内壁凹陷部分填平。 Li Jiayong for this invention "a spiral rib composite pipe" (patent number: ZL20081028610.1) production methods, the production process of plastic extrusion die is extruded plastic strip, a plastic strip with a thin-walled metal tube wall recessed portion filled. 这样的生产方法有明显几个缺点:一是,增加了塑料用量和钢管的重量;二是,内外壁的塑料强度低,输送流体中含固体颗粒时易磨损破坏;填平钢管凹槽的塑料板带一旦被磨损破坏内壁就无法保证平整性。 Such production methods have significant disadvantages: First, increasing the weight amount of plastic and steel; second, low-strength plastic inner and outer walls, wear damage in transport fluid-containing solid particles; plastic filled steel groove Once the strip is worn inside wall damage can not be guaranteed flatness. 所以内壁凹槽处必须要用钢带来填平,这样就避免了塑料板带被流体中的细小固体颗粒磨损。 Therefore, the inner wall of the recess to bring the steel must be filled, thus avoiding a plastic strip is worn fine solid particles in the fluid.

发明内容 SUMMARY

[0003] 本发明的目的在于针对现有技术中存在的上述缺陷,提供一种内表面平整外表面具加强筋的单层螺旋波纹管的生产方法。 [0003] The object of the present invention for the above-mentioned drawbacks in the prior art, there is provided method of producing a single-layer flat spiral corrugated pipe the outer surface of the inner mask a reinforced rib.

[0004] 本发明的内表面平整外表面具加强筋的单层螺旋波纹管的生产方法,包括如下步骤: [0004] The inner surface of the outer mask of the present invention, a flat stiffener producing single spiral bellows, comprising the steps of:

[0005] (I)将带状金属薄钢板即钢带通过除锈处理后送入压型设备,在钢带允许的拉伸强度和屈服强度范围之内压制成沿钢带边缘的一条纵向加强筋槽; [0005] (I) the metal strip into a thin steel sheet after the press-type apparatus rust treatment i.e. through the strip, pressed into a steel strip along the longitudinal edges of the reinforcing strip within the allowable range of tensile strength and yield strength of beading grooves;

[0006] (2)将已经压制纵向加强筋槽的钢带送至成管设备让其按一定的螺距螺旋卷曲,纵向加强筋槽的凸起面朝外,在卷曲的同时第二圈钢带即第二个螺距的左直边缘部分将第一圈钢带即第一个螺距的右边缘加强筋槽的内凹面平整覆盖,第三个螺距的左直边缘部分将第二个螺距的右边缘加强筋槽的内凹面平整覆盖,依此类推,并在内、外搭接缝处进行在线连续焊接,从而形成一个内表面平整外表面具加强筋的单层金属管体结构; [0006] (2) has a groove pressed longitudinal reinforcement strip into a tube to the apparatus allowed a certain pitch helical crimp, the longitudinal reinforcing rib projections facing outer grooves, crimped while in the second loop strip and the left second pitch portion of the straight edge of the first ring i.e. the right edge of the first strip pitch reinforcing ribs covering the concave groove formation, the pitch of the third left portion of the straight edge of the right edge of the second pitch concave grooves in the rib flat cover, and so on, and the inner and outer lap seam welding of the continuous-line, thereby forming a single-layer metal tube structure flat outer surface of the inner stiffener mask;

[0007] (3)在线切割设备根据所需要的长度将单层金属管体裁截,裁截的管体两端焊接法兰; [0007] (3) line cutting device in accordance with the desired length of the metal pipe genre single cut, the cut pieces of pipe flange welded at both ends;

[0008] (4)将步骤(3)所得管体进行内面和/或外面的防腐处理,即得到一种内表面平整外表面具加强筋的单层螺旋波纹金属管的成品管。 [0008] (4) The step (3) the inner surface of a tubular body obtained and / or outside the anti-corrosion treatment, to obtain a surface-finished tube outer surface has a flat monolayer spiral rib of the corrugated metal pipes.

[0009] 具体的,步骤(I)中,所述钢带除锈处理是通过在线高速旋转钢刷物理方式除锈,或是通过酸洗化学反应方式除锈;所述压制成沿钢带边缘的一条纵向加强筋槽是一次连续压制成型,或是多级逐级压制成型。 [0009] Specifically, the step (I), the strip-line descaling process is performed by high-speed rotating steel brush physically blasting, or a chemical reaction method descaling pickling; pressed into the strip along the edge of a longitudinal groove of the rib is a continuous compression molding, compression molding, or multi-stage cascade.

[0010] 具体的,步骤(4)中,所述防腐处理是在管体内面和/或外面进行具有防腐抗燃抗静电作用的PE塑料覆层处理或是具有防腐作用的塑料涂层及喷漆层处理。 [0010] Specifically, in step (4), the anti-corrosion treatment is carried out coating process PE plastic having flame resistant antistatic effect of corrosion in the pipe inner surface and / or a preservative or outer plastic coating and painting effect layer processing.

[0011] 本发明的有益效果是:在本发明中,采用了钢带上沿纵向压制加强筋槽后再进行一定螺距地螺旋卷曲,从而使得第二圈钢带直边缘平整覆盖第一圈钢带的加强筋槽内凹面,通过焊接制成薄壁钢管,再采用在线切割设备将一定长度的管体裁截再焊接法兰的技术方案,使得采用本方法生产的内表面平整外表面具加强筋的单层螺旋波纹金属管的环刚度、抗冲击强度均得到很大提高的前提下,管体内壁的平整度也大大降低了气体或者流体通过的阻力,并且由于金属覆盖的方案,使得内壁的耐摩擦性和强度也得到了很大的提升。 [0011] Advantageous effects of the invention are: In the present invention, a longitudinal direction of the rib grooves after pressing a certain pitch helically crimped on the strip, the strip so that the second straight edge ring overlying the first flat steel ring a concave groove with ribs, made of thin-walled steel pipe by welding, and then use the line cutting device cut length of pipe and then welding flange genre technical solution, the present method for producing such a flat inner surface of the outer mask stiffeners single ring stiffness premise helical corrugated metal tube, the impact strength are greatly improved, the flatness of the inner wall of the tube is also greatly reduces the resistance of the gas or fluid passes, and since the metal coating of the program, so that the resistance of the inner wall frictional and strength has been greatly improved. 在线连续内、外壁双面焊接的方式也提升了整个管体的可靠性和密闭性。 Line continuous inner and outer walls of the double-welded manner and also to enhance the reliability of the entire sealed tube. 克服了现有技术中在重量轻的前提下无法保证其大的环刚度,而且在内壁平整的前提下无法使其更好的减小阻力增加内壁强度的缺点。 Overcomes the prior art in the light weight thereof are not guarantees great ring stiffness, and in the inner wall of the premise can not be flat so as to better reduce the disadvantage of increasing the resistance of the inner wall strength. 此种方法生产出来的波纹金属管,适用于各种大小不同管径的生产。 This method produced corrugated metal pipes, suitable for the production of a variety of sizes of different diameters. 生产过程中只需要简单的换相对应管径的成管机模具即可。 Production process simply change corresponding to the diameter of the pipe into the mold to machine. 加强筋的大小可以通过更换压型设备的压辊形状来改变。 The bead size may be varied by changing the shape of the pressure roll press type apparatus. 这样以模块化的设计理念,使得各个大小不同管径设备互换简单,同时也能保证它的安装精度,大大降低了生产期成本和生产不同管径之间的转换周期。 Such modular design, so that the respective sizes of different diameters simple swap device, but also to ensure the accuracy of its installation, greatly reduce the production cost and the production of the transition period between the different diameters.

附图说明 BRIEF DESCRIPTION

[0012] 图1是本发明方法生产的单层螺旋波纹金属管管体的立体结构示意图。 [0012] FIG. 1 is a schematic perspective method of the present invention produced a single-layer spiral corrugated metal pipe body.

[0013] 图2是本发明实施例1中使用的生产设备的结构示意图。 [0013] FIG. 2 is a schematic structural diagram of an embodiment of production apparatus used in the present invention.

[0014]图3是本发明实施例3中具有纵向加强筋槽的钢带的横截面示意图。 [0014] FIG. 3 is an embodiment of the present invention, schematic cross-section longitudinal steel reinforcing rib groove 3 has.

具体实施方式 detailed description

[0015] 下面结合附图和实施例对本发明作进一步详细的描述。 Drawings and embodiments of the present invention will be further described in detail [0015] below in conjunction.

[0016] 实施例1: [0016] Example 1:

[0017] 参见图1、图2,图1所示的内表面平整外表面具加强筋的单层螺旋波纹金属管的生产过程如下; [0017] Referring to FIG. 1, FIG. 2, the inner flat surface shown in FIG. 1 the outer mask production process bead monolayer spiral corrugated metal pipes as follows;

[0018] (I)带状金属薄钢板(简称钢带)I通过除锈处理后送入图2中所示的压型设备2,在钢带I允许的拉伸强度和屈服强度范围之内压制成沿钢带I边缘的一条纵向加强筋槽21 ; [0018] (I) a metal strip steel sheet (abbreviated strip) I sent by post-blasting pressure equipment shown in FIG. 2 2, I allow the strip tensile strength and yield strength within a range of I pressed into the strip along a longitudinal edge of the rib grooves 21;

[0019] (2)压制有纵向加强筋槽21的钢带I被送至图2中所示的成管设备3让其按一定的螺距螺旋卷曲,在卷曲的同时第二圈(第二个螺距)钢带的左直边缘部分将第一圈(第一个螺距)钢带右边缘加强筋内凹面平整覆盖填平,并在内、外搭接缝处进行在线连续焊接之后,经过定管中心设备将其钢管的中心定住,让其不偏心,在经过牵引设备的牵引力之后减小压制纵向加强筋槽的钢带在卷曲过程中的阻力,让其更顺利的形成一个内表面平整外表面具加强筋的单层金属管体结构; [0019] (2) has a longitudinal rib grooves pressed steel I 21 is shown in Figure 2 is supplied into a tube 3 the device allowed a certain pitch helical crimp, while twisting the second loop (second after left pitch) straight edge portions of the strip of the first coil (first pitch) right edge reinforcing strip covering the concave formation filled inner ribs, and the inner and outer lap seam welding of the continuous-line, through the tube set the center apparatus anchorage steel center, eccentric not allowed, after reducing the pressing device pulling the traction resistance of the steel strip longitudinal reinforcing ribs in the grooves of the crimping process, make it even more smoothly formed outer surface has a flat inner surface single reinforcing rib structures of the metal pipe;

[0020] (3)在线切割设备根据所需要的长度裁截单层金属管体,裁截成一定长度的管体自动被送入托管设备让其自动下生产线,然后两端焊接法兰; [0020] (3) cutting line cutting device in accordance with the desired cut length of single-layer metal tube, a length of the cut pieces into the tubular body is automatically fed into it automatically managed devices under production line, and the flange welded at both ends;

[0021] (4)进行管体内面和/或外面的防腐处理,即得到一种内表面平整外表面具加强筋的单层螺旋波纹金属管的成品管。 [0021] (4) of the tubular body surface and / or outside the anti-corrosion treatment, to obtain a surface-finished tube outer surface has a flat monolayer spiral rib of the corrugated metal pipes.

[0022] 上述步骤(I)中,所述钢带除锈处理是通过在线高速旋转钢刷物理方式除锈,或是通过酸洗化学反应方式除锈;所述压制成沿钢带边缘的一条纵向加强筋槽是一次连续压制成型,或是多级逐级压制成型。 [0022] The step (I), the strip-line descaling process is performed by high-speed rotating steel brush physically blasting, or a chemical reaction method descaling pickling; pressed into the strip along one edge a longitudinal reinforcement is a continuous groove press molding, compression molding, or multi-stage cascade.

[0023] 上述步骤(4)中,所述防腐处理是在管体内面和/或外面进行具有防腐抗燃抗静电作用的PE塑料覆层处理或是具有防腐作用的塑料涂层及喷漆层处理。 [0023] The above-described step (4), the anti-corrosion treatment is carried out coating process PE plastic having flame resistant antistatic effect of corrosion in the pipe inner surface and / or outside of a plastic or coated with antiseptic paint layer process and . 覆层方法已在专利ZL20081028610.1 中公开。 Coating processes disclosed in the patent ZL20081028610.1.

[0024] 实施例2: [0024] Example 2:

[0025] 本实施例与实施例1不同之处在于,上述步骤⑴中,钢带I通过除锈处理后,被送入单独的压型设备压制纵向加强筋槽,即由单级压辊连续压制成型纵向加强筋槽21后,再送入成管设备螺旋绕制成内表面平整外表面具加强筋的单层螺旋波纹金属管。 [0025] Example of the present embodiment in Example 1 except that the step ⑴, the strip I by derusting treatment, is fed to separate pressing pressure equipment longitudinal reinforcement grooves, i.e., by a single stage continuous press roll after the press forming longitudinal stiffeners 21, and then into the rib grooves helically wound into a tubular device made of an inner surface of the outer mask flat monolayer spiral rib corrugated metal pipes.

[0026] 实施例3: [0026] Example 3:

[0027] 本实施例与实施例1不同之处在于,上述步骤(I)中,钢带I通过除锈处理后,于钢带I的边缘处在线连续焊接一个压制成凹形槽的金属薄板带5。 [0027] Example of the present embodiment in Example 1 except that the step (I), the strip I by rust after treatment, at the edge of the steel strip in a continuous welding line I is pressed into the concave groove metal sheet with 5. 此凹形槽的金属薄板带5和带状金属钢板I焊接成整体被送入成管设备,螺旋绕制成内表面平整外表面具加强筋的单层螺旋波纹金属管,其中,凹形槽的金属薄板带5即形成螺旋加强筋。 This sheet metal strip 5 and the concave groove of the strip-shaped metal plate I single spiral corrugated metal pipes welded into a whole is fed into a tubular device, made of helically wound flat inner surface of the outer rib of the mask, wherein a concave groove 5 the sheet metal bands that formed a spiral rib.

Claims (3)

  1. 1.一种内表面平整外表面具加强筋的单层螺旋波纹管的生产方法,其特征在于包括如下步骤: (1)将带状金属薄钢板即钢带通过除锈处理后送入压型设备,在钢带允许的拉伸强度和屈服强度范围之内压制成沿钢带边缘的一条纵向加强筋槽; (2)将已经压制纵向加强筋槽的钢带送至成管设备让其按一定的螺距螺旋卷曲,纵向加强筋槽的凸起面朝外,在卷曲的同时第二圈钢带即第二个螺距的左直边缘部分将第一圈钢带即第一个螺距的右边缘加强筋槽的内凹面平整覆盖,第三个螺距的左直边缘部分将第二个螺距的右边缘加强筋槽的内凹面平整覆盖,依此类推,并在内、外搭接缝处进行在线连续焊接,从而形成一个内表面平整外表面具加强筋的单层金属管体结构; (3)在线切割设备根据所需要的长度将单层金属管体裁截,裁截的管体两端焊接法---, (4)将步骤(3)所 An inner surface of the flat outer surface has a monolayer reinforcing rib producing spiral bellows, comprising the steps of: (1) fed to the band-like thin metal sheet pressure equipment by the steel strip after the descaling process i.e. , pressing the strip allows the tensile strength and yield strength range to a longitudinal edge of the strip along the rib grooves; (2) the strip has been pressed longitudinal reinforcing ribs to the grooves let into a tube by a certain device pitch helical crimp, the longitudinal reinforcing rib projections facing outer grooves, crimped while in the second loop strip and the left edge of the second linear portion of the pitch circle of the first strip one pitch i.e. the right edge of the first reinforcing the inner concave surface of the flat cover rib groove, the third pitch of the left edge portion of the right straight edge of a second pitch covered with smooth concave inner reinforcing rib grooves, and so on, and the inner and outer seam-line continuous ride welding, thereby forming a single-layer structure of a metal tube outer surface has a smooth inner surface of the stiffener; (3) line cutting device in accordance with the desired length of the metal pipe genre single cut, the cut pieces of welding two ends of the tubular body - -, (4) step (3) 得管体进行内面和/或外面的防腐处理,即得到一种内表面平整外表面具加强筋的单层螺旋波纹金属管的成品管。 Have in-plane and / or anti-corrosion treatment outside the tubular body, i.e., to obtain a surface-finished tube outer surface has a flat monolayer spiral rib of the corrugated metal pipes.
  2. 2.根据权利要求1所述内表面平整外表面具加强筋的单层螺旋波纹管的生产方法,其特征在于:步骤(I)中,所述钢带除锈处理是通过在线高速旋转钢刷物理方式除锈,或是通过酸洗化学反应方式除锈;所述压制成沿钢带边缘的一条纵向加强筋槽是一次连续压制成型,或是多级逐级压制成型。 The inner surface roughness of the outer surface has a method of producing a monolayer reinforcing ribs spiral bellows claim, wherein: step (I), the strip-line descaling process is performed by high-speed rotating steel brush physical rust manner, a chemical reaction or descaling by pickling embodiment; pressed into the strip along a longitudinal edge of the rib groove is a continuous compression molding, compression molding, or multi-stage cascade.
  3. 3.根据权利要求1所述内表面平整外表面具加强筋的单层螺旋波纹管的生产方法,其特征在于:步骤(4)中,所述防腐处理是在管体内面和/或外面进行具有防腐抗燃抗静电作用的PE塑料覆层处理或是具有防腐作用的塑料涂层及喷漆层处理。 The method for producing a single-layer spiral corrugated tube within said outer surface has a smooth surface of the rib claim, wherein: step (4), the anti-corrosion treatment is carried out in the tubular body having a surface and / or outside corrosion of flame resistant antistatic coating process or PE plastic having a plastic coating and corrosion protection paint layer processing.
CN 201510050150 2015-01-31 2015-01-31 Production method of single layer spiral bellows with flat interior surface and reinforcing ribs on external surface CN104759485A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768928A (en) * 1995-10-16 1998-06-23 Carson; Ken Method of making an hydraulically efficient ribbed pipe
KR100935531B1 (en) * 2009-11-03 2010-01-06 주식회사 보국철강 Steel ribbed pipe and manufacturing method thereof
CN103851277A (en) * 2012-11-30 2014-06-11 上海金纬管道设备制造有限公司 Production method for steel-plastic warping and soldering pipe
CN203823259U (en) * 2014-04-28 2014-09-10 淄博安益矿用设备有限公司 Plastic-coated pressure-resistant pipe with reinforcing ribs
CN203892733U (en) * 2014-05-23 2014-10-22 李长城 Helical weld pipe in stainless steel structure
CN104266010A (en) * 2014-09-23 2015-01-07 湖南双马新材料科技有限公司 Single-layer spiral corrugated metal pipe with smooth inner surface and with reinforcing rib on the outer surface

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768928A (en) * 1995-10-16 1998-06-23 Carson; Ken Method of making an hydraulically efficient ribbed pipe
KR100935531B1 (en) * 2009-11-03 2010-01-06 주식회사 보국철강 Steel ribbed pipe and manufacturing method thereof
CN103851277A (en) * 2012-11-30 2014-06-11 上海金纬管道设备制造有限公司 Production method for steel-plastic warping and soldering pipe
CN203823259U (en) * 2014-04-28 2014-09-10 淄博安益矿用设备有限公司 Plastic-coated pressure-resistant pipe with reinforcing ribs
CN203892733U (en) * 2014-05-23 2014-10-22 李长城 Helical weld pipe in stainless steel structure
CN104266010A (en) * 2014-09-23 2015-01-07 湖南双马新材料科技有限公司 Single-layer spiral corrugated metal pipe with smooth inner surface and with reinforcing rib on the outer surface

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