CN103317306B - A kind of manufacture method of spiral seam bimetallic composite welded pipe - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 46
- 230000007704 transition Effects 0.000 claims abstract description 7
- 238000004880 explosion Methods 0.000 claims abstract description 5
- 238000005098 hot rolling Methods 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000005253 cladding Methods 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000002905 metal composite material Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000012805 post-processing Methods 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- BQJTUDIVKSVBDU-UHFFFAOYSA-L copper;sulfuric acid;sulfate Chemical compound [Cu+2].OS(O)(=O)=O.[O-]S([O-])(=O)=O BQJTUDIVKSVBDU-UHFFFAOYSA-L 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
一种螺旋缝双金属复合焊管的制造方法，第一步：将“爆炸+热轧”工艺制成的复合板材进行矫直、表面处理，并在板材两边加工X型焊接坡口；第二步：将加工后的复合板材连续送入螺旋管成型机组逐渐弯曲成管状，并形成螺旋缝；第三步：对成型的螺旋缝采用MAG焊接工艺进行过渡层的连续预焊；第四步：采用MAG或SAW焊接工艺，在管外进行基层的连续焊接；第五步：采用TIG焊接工艺在管内对复层连续焊接；第六步：经定径、检测、后处理形成产品。本发明采用螺旋成型的方式实现了用同一宽度的复合卷板制造出不同管径的双金属复合管，且采用两步法焊接工艺，适合工业化批量生产。
A method for manufacturing a spiral seam bimetallic composite welded pipe, the first step: straightening and surface treatment the composite sheet made by the "explosion + hot rolling" process, and processing X-shaped welding grooves on both sides of the sheet; the second step : The processed composite sheet is continuously fed into the spiral tube forming unit to gradually bend into a tube shape and form a spiral seam; the third step: the MAG welding process is used for the continuous pre-welding of the transition layer on the formed spiral seam; the fourth step: adopt MAG or SAW welding process, the continuous welding of the base layer outside the pipe; the fifth step: the continuous welding of the multi-layer inside the pipe by TIG welding process; the sixth step: the product is formed after sizing, testing and post-processing. The invention realizes the manufacture of bimetallic composite pipes with different pipe diameters by using the same width of composite coiled plates by means of spiral forming, and adopts a two-step welding process, which is suitable for industrialized batch production.
Description
技术领域 technical field
本发明属于复合焊管制造技术领域，具体涉及一种螺旋缝双金属复合焊管的制造方法。The invention belongs to the technical field of composite welded pipe manufacture, and in particular relates to a method for manufacturing a spiral seam bimetal composite welded pipe.
背景技术 Background technique
输油、输气管道中的H2S、CO2会引起管道严重的均匀腐蚀、点腐蚀、硫化物应力腐蚀开裂和氢致开裂，从而导致输送管道的失效和事故，采用耐腐蚀复合管是最经济的方式之一。采用价格远低于不锈钢的双金属复合管是耐腐蚀油气输送管材发展的方向，由于受到复合板材宽度的限制，直缝成型的复合管无法满足用户需要。H 2 S and CO 2 in oil and gas pipelines will cause serious uniform corrosion, pitting corrosion, sulfide stress corrosion cracking and hydrogen-induced cracking in pipelines, which will lead to failures and accidents in pipelines. The use of corrosion-resistant composite pipes is One of the most economical ways. The use of bimetallic composite pipes whose price is much lower than that of stainless steel is the development direction of corrosion-resistant oil and gas transportation pipes. Due to the limitation of the width of the composite plates, the composite pipes formed by straight seams cannot meet the needs of users.
发明内容 Contents of the invention
本发明提供一种螺旋缝双金属复合焊管的制造方法，以“爆炸+热轧”工艺制成的复合卷板为原料，采用螺旋成型焊接工艺制造，可以实现工业化的批量生产。The invention provides a method for manufacturing a spiral seam bimetallic composite welded pipe, which uses the composite coil produced by the "explosion + hot rolling" process as a raw material, and is manufactured by a spiral forming welding process, which can realize industrialized mass production.
本发明采用的技术方案是：一种螺旋缝双金属复合焊管的其制造方法，包括下述工艺步骤：The technical scheme adopted by the present invention is: a method for manufacturing a spiral seam bimetal composite welded pipe, comprising the following process steps:
第一步：将“爆炸+热轧”工艺制成的双金属复合板材耐蚀合金一面朝上碳钢一面朝下进行矫直、表面处理，并在板材两边加工X型焊接坡口；Step 1: Straighten and surface treat the corrosion-resistant alloy of the bimetallic composite plate made by the "explosion + hot rolling" process with the carbon steel side facing upwards, and process X-shaped welding grooves on both sides of the plate;
第二步：将加工有X型焊接坡口的双金属复合板材连续送入螺旋管成型机组逐渐弯曲成管状，并形成螺旋缝；Step 2: Continuously feed the double-metal composite sheet with X-shaped welding groove into the spiral tube forming unit to gradually bend it into a tube shape and form a spiral seam;
第三步：对成型的螺旋缝采用MAG焊接工艺在管内进行过渡层的连续预焊，在预焊过程中可随时对钢管的几何形状进行调整；Step 3: Continuously pre-weld the transition layer in the pipe using the MAG welding process for the formed spiral seam, and the geometric shape of the steel pipe can be adjusted at any time during the pre-welding process;
第四步：采用MAG或SAW焊接工艺，在管外进行基层的连续焊接；Step 4: Use MAG or SAW welding process to continuously weld the base layer outside the pipe;
第五步：采用TIG焊接工艺在管内对复层连续焊接；Step 5: Use TIG welding process to continuously weld the multiple layers in the tube;
第六步：经定径、检验、后处理形成产品。Step 6: Form a product after sizing, inspection, and post-processing.
所述复层为不锈钢板材316L、304L、2205，或钛及钛合金板材，且厚度为1-2mm；所述基层为X52、X60、X65、X70管线钢板材。The cladding layer is stainless steel plate 316L, 304L, 2205, or titanium and titanium alloy plate, and the thickness is 1-2mm; the base layer is X52, X60, X65, X70 pipeline steel plate.
所述X型焊接坡口的基层面坡口角度b为60-70°，复层面坡口角度c为80-90°。The base layer groove angle b of the X-shaped welding groove is 60-70°, and the compound layer groove angle c is 80-90°.
本发明具有的优点和效果：Advantage and effect that the present invention has:
1、本发明采用螺旋成型的方式实现了用同一宽度的复合卷板制造出不同管径的双金属复合管，拓宽了双金属复合管的应用领域。1. The invention adopts the method of spiral forming to realize the production of bimetallic composite pipes with different pipe diameters by using composite coils of the same width, which broadens the application field of bimetallic composite pipes.
2、本发明采用两步法焊接工艺完成螺旋缝双金属复合管的焊接，防止了基层碳钢成分过渡到复层，采用合理的焊接顺序，避免了复层由于焊接受热而引起的耐腐蚀性能下降，其力学性能和耐腐蚀性能均达到要求，适合工业化批量生产。2. The present invention uses a two-step welding process to complete the welding of the spiral seam bimetallic composite pipe, which prevents the transition of the carbon steel component of the base layer to the cladding layer, adopts a reasonable welding sequence, and avoids the corrosion resistance of the cladding layer caused by welding heat Decline, its mechanical properties and corrosion resistance meet the requirements, suitable for industrial mass production.
附图说明 Description of drawings
图1本发明结构示意图，图2本发明断面结构示意图，图3本发明X型焊接坡口结构示意图。Fig. 1 is a schematic structural diagram of the present invention, Fig. 2 is a schematic cross-sectional structural diagram of the present invention, and Fig. 3 is a schematic structural diagram of an X-shaped welding groove of the present invention.
具体实施方式： detailed description:
一种螺旋缝双金属复合焊管的其制造方法，包括下述工艺步骤：A method for manufacturing a spiral seam bimetal composite welded pipe, comprising the following process steps:
第一步：将“爆炸+热轧”工艺制成的双金属复合板材耐蚀合金一面朝上碳钢一面朝下进行矫直、表面处理，并在板材两边加工X型焊接坡口；Step 1: Straighten and surface treat the corrosion-resistant alloy of the bimetallic composite plate made by the "explosion + hot rolling" process with the carbon steel side facing upwards, and process X-shaped welding grooves on both sides of the plate;
第二步：将加工有X型焊接坡口的双金属复合板材连续送入螺旋管成型机组逐渐弯曲成管状，并形成螺旋缝3；Step 2: Continuously feed the bimetal composite sheet with X-shaped welding groove into the spiral tube forming unit to gradually bend it into a tube shape and form a spiral seam 3;
第三步：对成型的螺旋缝3采用MAG焊接工艺在管内进行过渡层的连续预焊，在预焊过程中可随时对钢管的几何形状进行调整；Step 3: Continuously pre-weld the transition layer in the pipe using the MAG welding process on the formed spiral seam 3, and the geometric shape of the steel pipe can be adjusted at any time during the pre-welding process;
第四步：采用MAG或SAW焊接工艺，在管外进行碳钢基层1的连续焊接；The fourth step: using MAG or SAW welding process, continuous welding of carbon steel base layer 1 outside the pipe;
第五步：采用TIG焊接工艺在管内对耐蚀合金复层2连续焊接；Step 5: Use TIG welding process to continuously weld the corrosion-resistant alloy clad layer 2 in the tube;
第六步：经定径、检测、后处理形成产品。Step 6: Form a product after sizing, testing, and post-processing.
所述复层2为不锈钢板材316L、304L、2205，或钛及钛合金板材，且厚度为1-2mm；所述基层1为X52、X60、X65、X70管线钢板材。The cladding layer 2 is stainless steel plate 316L, 304L, 2205, or titanium and titanium alloy plate, and the thickness is 1-2mm; the base layer 1 is X52, X60, X65, X70 pipeline steel plate.
所述X型焊接坡口的基层面坡口角度b为60-70°，复层面坡口角度c为80-90°。The base layer groove angle b of the X-shaped welding groove is 60-70°, and the compound layer groove angle c is 80-90°.
实施例1：以2205/X65双金属复合板为原料（其中2205不锈钢板厚度2mm，X65管线钢板厚度10mm），采用X型复合坡口，且基层面单边坡口角度为35°并留有1mm钝边，复层面单边坡口角度为45°，复合板螺旋成型以后先采用TIG焊的方法焊接过渡层，再采用MAG焊或SAW焊的方法焊接基层，最后采用TIG焊的方法离线焊接复层。具体焊接工艺参数如下：Example 1: Using 2205/X65 bimetal composite plate as raw material (2205 stainless steel plate thickness 2mm, X65 pipeline steel plate thickness 10mm), X-shaped composite groove is adopted, and the angle of single-side groove on the base layer is 35° and leaves 1mm blunt edge, single-sided bevel angle of cladding layer is 45°, after the composite plate is spiral formed, TIG welding is used to weld the transition layer first, then MAG welding or SAW welding is used to weld the base layer, and finally TIG welding is used for off-line welding layered. The specific welding process parameters are as follows:
焊管力学性能试验结果：抗拉强度675MPa，0℃冲击韧性焊缝为105J，热影响区为210J，焊缝正反弯180度无裂纹。腐蚀试验按标准GB/T4334-2008进行，在硫酸-硫酸铜溶液中沸腾72小时，弯曲无裂纹。Test results of mechanical properties of welded pipe: tensile strength 675MPa, 0°C impact toughness weld seam 105J, heat-affected zone 210J, weld seam forward and reverse bending 180 degrees without cracks. The corrosion test is carried out according to the standard GB/T4334-2008, boiled in sulfuric acid-copper sulfate solution for 72 hours, no cracks when bent.
实施例2：以纯钛TA1/X65双金属复合板为原料（纯钛TA1厚度2mm，X65厚度10mm），采用X型复合坡口，且基层面单边坡口角度为32°并留有1mm钝边，复层面单边坡口角度为40°，复合板螺旋成型以后先采用TIG焊的方法焊接过渡层，再采用MAG焊或SAW焊的方法焊接基层，最后采用TIG焊的方法离线焊接复层。Example 2: Using pure titanium TA1/X65 bimetallic composite plate as raw material (pure titanium TA1 thickness 2mm, X65 thickness 10mm), using X-shaped composite groove, and the single-side groove angle of the base layer is 32° and 1mm blunt is left The single-side groove angle of the cladding layer is 40°. After the composite plate is spiral formed, the transition layer is welded by TIG welding, and then the base layer is welded by MAG welding or SAW welding. Finally, the cladding layer is welded off-line by TIG welding. .
焊管力学性能试验结果：抗拉强度705MPa，0℃冲击韧性焊缝为85J，热影响区为180J，焊缝正反弯180度无裂纹。腐蚀试验按照ASTMB898-05进行，在硫酸-硫酸铜溶液中沸腾72小时，弯曲无裂纹。Test results of mechanical properties of the welded pipe: the tensile strength is 705MPa, the impact toughness of the weld at 0°C is 85J, the heat affected zone is 180J, and the weld is bent 180 degrees forward and backward without cracks. The corrosion test is carried out in accordance with ASTMB898-05, boiled in sulfuric acid-copper sulfate solution for 72 hours, no cracks when bent.
上述实施例，只是本发明的较佳实施例，并非用来限制本发明实施范围，故凡以本发明权利要求所述内容所做的等同变化，均应包括在本发明权利要求范围之内。The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all equivalent changes made with the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
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| US11707773B2 (en) | 2017-03-27 | 2023-07-25 | Baoshan Iron & Steel Co., Ltd. | Method for manufacturing clad steel pipe |
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Effective date of registration: 20170531 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: BAOJI PETROLEUM STEEL PIPE Co.,Ltd. Patentee after: China National Petroleum Corp. Address before: 721006, 10 Tan Lu, Weibin District, Shaanxi, Baoji Patentee before: BAOJI PETROLEUM STEEL PIPE Co.,Ltd. |
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Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: China National Petroleum Corp. Country or region after: China Patentee after: China Petroleum Group Gemstone Pipe Industry Co.,Ltd. Address before: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee before: China National Petroleum Corp. Country or region before: China Patentee before: BAOJI PETROLEUM STEEL PIPE Co.,Ltd. |