CN102107232B - 钢铜复合焊管的制造方法 - Google Patents
钢铜复合焊管的制造方法 Download PDFInfo
- Publication number
- CN102107232B CN102107232B CN201010601873XA CN201010601873A CN102107232B CN 102107232 B CN102107232 B CN 102107232B CN 201010601873X A CN201010601873X A CN 201010601873XA CN 201010601873 A CN201010601873 A CN 201010601873A CN 102107232 B CN102107232 B CN 102107232B
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- Prior art keywords
- steel
- copper
- annealing
- band
- steel copper
- Prior art date
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- 229910052802 copper Inorganic materials 0.000 title claims abstract description 233
- 239000010949 copper Substances 0.000 title claims abstract description 233
- 239000002131 composite material Substances 0.000 title claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 229
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 216
- 239000010959 steel Substances 0.000 claims abstract description 216
- 238000000137 annealing Methods 0.000 claims abstract description 99
- 238000003466 welding Methods 0.000 claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000004513 sizing Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 99
- 238000000034 method Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 15
- 238000007689 inspection Methods 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 10
- 238000005097 cold rolling Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMy4zJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojRTg0MjM1JyA+SDwvdGV4dD4KPHRleHQgeD0nMjguMicgeT0nNjIuOScgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToxNXB4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6I0U4NDIzNScgPjI8L3RleHQ+Cjx0ZXh0IHg9JzM1LjAnIHk9JzUzLjYnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjNweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
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- 239000007789 gas Substances 0.000 claims description 5
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- 230000004927 fusion Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials 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Abstract
本发明涉及一种钢铜复合焊管的制造方法，包括如下步骤：使用钢带和铜带作为原材料，分别对钢带和铜带进行表面清洗处理后，对钢带和铜带的复合面进行打毛处理，将钢带加温至750±30℃，将铜带加温至550±30℃，然后将钢带的复合面与铜带的复合面相贴合后送入冷轧机轧制复合，将复合后的钢铜复合带依次经过退火、轧制、退火、平整、分条后得到所需宽度的钢铜复合带；将钢铜复合带输送至制管成型机组中进行管材成型，然后依次经过焊接、补铜、定径、探伤、收盘、验漏、退火、拉拔、退火、收盘后打包入库。本发明适用于空调、冰箱等家用电器的冷凝器和蒸发器用管。
Description
钢铜复合焊管的制造方法
技术领域
[0001] 本发明涉及到金属复合管材的制造方法，特别是指一种钢铜复合焊管的制造方法。
背景技术
[0002] 铜管由于其抗氧化、耐腐蚀、拉伸性能好、散热好等优点，所以目前广泛应用在空调冷凝器和蒸发器、冰箱冷凝器和蒸发器、空调内外机连接管、以及エ业用的大型冷凝器、 散热器中。铜管的制造方法有两种：冷拉拔エ艺和卷管焊接エ艺。冷拉拔エ艺是采用热轧无缝铜管为材料，经过多道拉拔エ序后得到所需管径的铜管。卷管焊接エ艺是采用铜带为起始材料，在制管成型机组中进行管材成型，形成铜管筒，然后进行固态高频焊接后制得铜管。
[0003] 但是由于目前铜材料的资源紧缺、价格昂贵，所以使用铜管的成本很高，而且铜管的重量较重。因此人们一直在试图寻找ー种可以替代铜管的管材，其中人们容易想到的是钢管，因为钢材的资源丰富、成本低，而且钢材的比重较小，相对铜来说重量也较轻。但是与铜管相比，钢管的抗氧化、耐腐蚀和机械性能都较差，用纯粹的钢管来代替铜管在很多场合不能满足要求。钢管的制造方法与铜管的制造方法相似，同样包括冷拉拔エ艺和卷管焊接 エ艺。冷拉拔エ艺是采用热轧无缝钢管为材料，经过多道拉拔エ序后得到所需管径的钢管。 卷管焊接エ艺是采用钢带为起始材料，在制管成型机组中进行管材成型，形成钢管筒，然后进行固态高频焊接后制得钢管。在运输过程中，为了运输方便，通常将钢带卷制成钢卷。
[0004] 为了充分利用钢铜的各自优点，目前市场上出现了ー种钢铜复合管，其制造方法主要有胀接、拉拔、挤压等方法。这些方法都是采用表面处理过的钢管和铜管相套装，然后经胀接、拉拔机或挤压机，进行相应的胀接、拉拔、挤压或将上述三种方法综合使用，如此往复才能生产出钢铜复合管。这些现有方法成材率低、管材长度短、效率低。更重要的是这些现有方法制得的钢铜复合管因只能做到钢铜结合面的机械结合，而这样的结合面在后道次的加工和使用过程中，会产生钢铜之间的剥离、分层、皱褶等现象，严重影响了钢铜复合管的应用和推广。
发明内容
[0005] 本发明所要解决的技术问题是：提供ー种制造成材率高、生产效率高的钢铜复合焊管的制造方法，并且使用该方法制得的钢铜复合管的品质优良、机械性能好，可满足后续加工和使用的需要。
[0006] 为解决上述问题，本发明采用的技术方案是：钢铜复合焊管的制造方法，包括如下步骤：
[0007]( 一 )、制造钢铜复合带：(a)、使用钢带作为原材料，将钢带进行表面酸洗清洗处理后，进行冷轧至3. 5±0. Imm的厚度，然后进行第一次退火，退火温度为880±5°C，退火时间不少于6小时，第一次退火完成后对钢带的复合面进行打毛处理；[0008] (b)、将厚度为O. 3±0. Olmm的铜带进行表面清洗处理后，对铜带的复合面进行打毛处理；
[0009] (C)、同时将（a)步骤中打毛后的钢带加温至750±30°C，将（b)步骤中打毛后的铜带加温至550±30°C，然后将钢带的复合面与铜带的复合面相贴合后送入冷轧机轧制复合， 并控制复合后的钢铜复合带的总厚度为I. 5±0. 05mm ；
[0010] ⑷、将复合后的钢铜复合带在气体保护下进行第二次退火，退火温度为 880±5°C，退火时间不少于6小时，接着根据最终管材的需求轧制至所需厚度，此厚度即为所需焊制的钢铜复合焊管的壁厚，接着进行第三次退火，退火温度为880±5°C，退火时间不少于6小时，最后经过平整处理后，对钢铜复合带进行分条，得到所需宽度的钢铜复合带；
[0011] (二）、制管:
[0012] (a)、成型：将步骤（一)中制得的钢铜复合带输送至制管成型机组中进行管材成型，形成钢铜复合管筒，管材成型时铜层位于外面、钢层位于里面；
[0013] (b)、焊接：将成型好后的钢铜复合管筒进行焊接；
[0014] (C)、补铜：将焊接制得的钢铜复合焊管的焊缝处的外毛刺去除后，将铜丝熔融后喷涂至焊缝上；
[0015] (d)、定径：将补完铜的钢铜复合焊管通过定径机进行管子外径尺寸定径；
[0016] (e)、探伤：对定径后的钢铜复合焊管的焊缝进行涡流探伤，检查焊缝有无疵点；
[0017] (f)、收盘：将探伤合格的钢铜复合焊管收卷成盘状；
[0018] (g)、验漏：将收盘后的钢铜复合焊管进行水下充气验漏；
[0019] (h)、第一次退火：将验漏合格的钢铜复合焊管进行边矫直边连续式退火，退火温度为750±10°C，退火时采用惰性气体保护；
[0020] (i)、拉拔：将退火后的钢铜复合焊管进行拉拔；
[0021] (j)、第二次退火：将拉拔后的钢铜复合焊管进行边矫直边连续式退火，退火温度为750±10°C，退火时采用惰性气体保护；
[0022] (k)、收盘：用收卷机将退火后的钢铜复合焊管收卷成盘状，管内充入惰性气体，两头密封后打包入库。
[0023] 上述的步骤（一）制造钢铜复合带中（a)工序所述的钢带为超低碳热轧钢带，其碳含量为O. 003以下。
[0024] 上述的步骤（一)制造钢铜复合带中（C)工序所述的冷轧机的轧制力为700〜 1200 吨。
[0025] 上述的步骤（一）制造钢铜复合带的（d)工序中，对分条后的钢铜复合带进行收卷；步骤（二）制管中（a)成型工序前还包括开卷工序和剪切对焊工序，其中开卷工序为： 将步骤（一）中收卷后的钢铜复合带进行开卷；其中剪切对焊工序为：将开卷后的钢铜复合带进行表面清洗后，将后一卷的头部与前一卷的尾部剪切后进行对焊。
[0026] 上述的步骤（二）制管中（b)焊接工序中采用固态高频焊接。
[0027] 上述的步骤（二）制管中（g)验漏工序中水下充气的气压为10kg。
[0028] 本发明的有益效果是：上述的钢铜复合焊管的制造方法与现有的钢铜复合管的制造方法相比具有以下优点：本发明的制造方法可以实现成材率高、效率高、批量大、成本低地生产钢铜复合焊管。[0029] 使用本发明的制造方法制得的钢铜复合焊管具有抗氧化、耐腐蚀、拉伸性能好、散热好等优点，而且成本较低、重量较轻、品质优良、机械性能好，可满足后续加工和使用的需要。
具体实施方式
[0030] 下面通过具体实施例对本发明钢铜复合焊管的制造方法作进ー步的详细描述。
[0031] 实施例I
[0032] 钢铜复合焊管的制造方法，包括如下步骤：
[0033](一）、制造钢铜复合带：(a)、使用厚度为4. 5mm的超低碳热轧钢带作为原材料，其碳含量为0. 002，将钢带进行表面酸洗清洗处理，去除钢带表面的铁锈及污垢后，进行冷轧至3. 5mm的厚度，然后进行第一次退火，退火温度为880°C，退火时间为6小时，第一次退火完成后使用钢丝刷对钢带的复合面进行打毛处理；
[0034] (b)、将厚度为0. 3mm的铜带进行表面清洗处理，去除铜带表面的污垢及附着物后，使用钢丝刷对铜带的复合面进行打毛处理；
[0035] (C)、同时将（a)步骤中打毛后的钢带加温至750°C，将（b)步骤中打毛后的铜带加温至550°C，然后将钢带的复合面与铜带的复合面相贴合后送入轧制カ为1000吨的冷轧机轧制复合，并控制复合后的钢铜复合带的总厚度为I. 5mm，在该轧制条件下，钢带的复合面与铜带的复合面之间相互发生原子滲透，实现冶金结合，这样的结合面可满足后续加工和使用的需要，在后道次的加工和使用过程中，不会产生钢铜之间的剥离、分层、皱褶等现象；
[0036] (d)、将复合后的钢铜复合带在罩式炉中，并且在气体保护下进行第二次退火，退火温度为880°C，退火时间为6小时，接着根据最终管材的需求轧制至所需厚度，此厚度即为所需焊制的钢铜复合焊管的壁厚，接着进行第三次退火，退火温度为880°C，退火时间为 6小时，最后经过平整处理后，对钢铜复合带进行分条，分条的宽度根据最终管材的管径来确定，得到所需宽度的钢铜复合带，分条完成后的钢铜复合带进行收卷；
[0037] (ニ）、制管:
[0038] (a)、开卷：将步骤（一)中收卷后的钢铜复合带放置在开卷机上进行开卷；
[0039] (b)、剪切对焊エ序为：将开卷后的钢铜复合带进行表面清洗后，将后ー卷的头部与前ー卷的尾部剪切后进行对焊，以达到钢铜复合带连续的目的，从而可以制得管材长度较长的钢铜复合焊管；
[0040] (C)、成型：将剪切对焊后的钢铜复合带输送至制管成型机组中进行管材成型，全长一次成型，形成钢铜复合管筒，管材成型时铜层位于外面、钢层位于里面；
[0041] (d)、焊接：将成型好后的钢铜复合管筒进行固态高频焊接；
[0042] (e)、补铜：将焊接制得的钢铜复合焊管的焊缝处的外毛刺去除后，通过高温火焰把铜焊丝溶化后喷涂至焊缝上；
[0043] (f)、定径：将补完铜的钢铜复合焊管通过定径机进行管子外径尺寸定径；
[0044] (g)、探伤：对定径后的钢铜复合焊管的焊缝进行涡流探伤，检查焊缝有无疵点；
[0045] (h)、收盘：将探伤合格的钢铜复合焊管收卷成盘状；
[0046] (i)、验漏：将收盘后的钢铜复合焊管进行水下充气验漏，其中气压为IOkg ；[0047] (j)、第一次退火：将验漏合格的钢铜复合焊管进行边矫直边连续式退火，退火温度为750°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0048] (k)、拉拔：将退火后的钢铜复合焊管进行拉拔，使焊缝上喷到的铜与钢铜复合焊管之间更加融合、光亮，而且可以去除钢铜复合焊管表面的小毛刺，使定径的尺寸更加准确；
[0049] (I)、第二次退火：将拉拔后的钢铜复合焊管进行边矫直边连续式退火，退火温度为750°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0050] (m)、收盘：用收卷机将退火后的钢铜复合焊管收卷成盘状，管内充入惰性气体，两头密封后打包入库。
[0051] 实施例2
[0052] 钢铜复合焊管的制造方法，包括如下步骤：
[0053](一）、制造钢铜复合带：(a)、使用厚度为4. 5mm的超低碳热轧钢带作为原材料，其碳含量为O. 003，将钢带进行表面酸洗清洗处理，去除钢带表面的铁锈及污垢后，进行冷轧至3. 4mm的厚度，然后进行第一次退火，退火温度为875°C，退火时间为7小时，第一次退火完成后使用钢丝刷对钢带的复合面进行打毛处理；
[0054] (b)、将厚度为O. 29mm的铜带进行表面清洗处理，去除铜带表面的污垢及附着物后，使用钢丝刷对铜带的复合面进行打毛处理；
[0055] (C)、同时将（a)步骤中打毛后的钢带加温至720°C，将（b)步骤中打毛后的铜带加温至520°C，然后将钢带的复合面与铜带的复合面相贴合后送入轧制力为1100吨的冷轧机轧制复合，并控制复合后的钢铜复合带的总厚度为I. 45mm，在该轧制条件下，钢带的复合面与铜带的复合面之间相互发生原子渗透，实现冶金结合，这样的结合面可满足后续加工和使用的需要，在后道次的加工和使用过程中，不会产生钢铜之间的剥离、分层、皱褶等现象；
[0056] (d)、将复合后的钢铜复合带在罩式炉中，并且在气体保护下进行第二次退火，退火温度为875°C，退火时间为7小时，接着根据最终管材的需求轧制至所需厚度，此厚度即为所需焊制的钢铜复合焊管的壁厚，接着进行第三次退火，退火温度为875°C，退火时间为 7小时，最后经过平整处理后，对钢铜复合带进行分条，分条的宽度根据最终管材的管径来确定，得到所需宽度的钢铜复合带，分条完成后的钢铜复合带进行收卷；
[0057] (二）、制管:
[0058] (a)、开卷：将步骤（一)中收卷后的钢铜复合带放置在开卷机上进行开卷；
[0059] (b)、剪切对焊工序为：将开卷后的钢铜复合带进行表面清洗后，将后一卷的头部与前一卷的尾部剪切后进行对焊，以达到钢铜复合带连续的目的，从而可以制得管材长度较长的钢铜复合焊管；
[0060] (C)、成型：将剪切对焊后的钢铜复合带输送至制管成型机组中进行管材成型，全长一次成型，形成钢铜复合管筒，管材成型时铜层位于外面、钢层位于里面；
[0061] (d)、焊接：将成型好后的钢铜复合管筒进行固态高频焊接；
[0062] (e)、补铜：将焊接制得的钢铜复合焊管的焊缝处的外毛刺去除后，通过高温火焰把铜焊丝溶化后喷涂至焊缝上；
[0063] (f)、定径：将补完铜的钢铜复合焊管通过定径机进行管子外径尺寸定径；[0064] (g)、探伤：对定径后的钢铜复合焊管的焊缝进行涡流探伤，检查焊缝有无疵点；
[0065] (h)、收盘：将探伤合格的钢铜复合焊管收卷成盘状；
[0066] (i)、验漏：将收盘后的钢铜复合焊管进行水下充气验漏，其中气压为IOkg ；
[0067] (j)、第一次退火：将验漏合格的钢铜复合焊管进行边矫直边连续式退火，退火温度为740°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0068] (k)、拉拔：将退火后的钢铜复合焊管进行拉拔，使焊缝上喷到的铜与钢铜复合焊管之间更加融合、光亮，而且可以去除钢铜复合焊管表面的小毛刺，使定径的尺寸更加准确；
[0069] (I)、第二次退火：将拉拔后的钢铜复合焊管进行边矫直边连续式退火，退火温度为740°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0070] (m)、收盘：用收卷机将退火后的钢铜复合焊管收卷成盘状，管内充入惰性气体，两头密封后打包入库。
[0071] 实施例3
[0072] 钢铜复合焊管的制造方法，包括如下步骤：
[0073]( —）、制造钢铜复合带：(a)、使用厚度为4. 5mm的超低碳热轧钢带作为原材料，其碳含量为0. 003，将钢带进行表面酸洗清洗处理，去除钢带表面的铁锈及污垢后，进行冷轧至3. 51mm的厚度，然后进行第一次退火，退火温度为885°C，退火时间为8小时，第一次退火完成后使用钢丝刷对钢带的复合面进行打毛处理；
[0074] (b)、将厚度为0.4_的铜带进行表面清洗处理，去除铜带表面的污垢及附着物后，使用钢丝刷对铜带的复合面进行打毛处理；
[0075] (C)、同时将（a)步骤中打毛后的钢带加温至770°C，将（b)步骤中打毛后的铜带加温至570°C，然后将钢带的复合面与铜带的复合面相贴合后送入轧制カ为800吨的冷轧机轧制复合，并控制复合后的钢铜复合带的总厚度为I. 55mm，在该轧制条件下，钢带的复合面与铜带的复合面之间相互发生原子滲透，实现冶金结合，这样的结合面可满足后续加工和使用的需要，在后道次的加工和使用过程中，不会产生钢铜之间的剥离、分层、皱褶等现象；
[0076] (d)、将复合后的钢铜复合带在罩式炉中，并且在气体保护下进行第二次退火，退火温度为885°C，退火时间为8小时，接着根据最终管材的需求轧制至所需厚度，此厚度即为所需焊制的钢铜复合焊管的壁厚，接着进行第三次退火，退火温度为885°C，退火时间为 8小时，最后经过平整处理后，对钢铜复合带进行分条，分条的宽度根据最终管材的管径来确定，得到所需宽度的钢铜复合带，分条完成后的钢铜复合带进行收卷；
[0077] (ニ）、制管:
[0078] (a)、开卷：将步骤（一)中收卷后的钢铜复合带放置在开卷机上进行开卷；
[0079] (b)、剪切对焊エ序为：将开卷后的钢铜复合带进行表面清洗后，将后ー卷的头部与前ー卷的尾部剪切后进行对焊，以达到钢铜复合带连续的目的，从而可以制得管材长度较长的钢铜复合焊管；
[0080] (C)、成型：将剪切对焊后的钢铜复合带输送至制管成型机组中进行管材成型，全长一次成型，形成钢铜复合管筒，管材成型时铜层位于外面、钢层位于里面；
[0081] (d)、焊接：将成型好后的钢铜复合管筒进行固态高频焊接；[0082] (e)、补铜：将焊接制得的钢铜复合焊管的焊缝处的外毛刺去除后，通过高温火焰把铜焊丝溶化后喷涂至焊缝上；
[0083] (f)、定径：将补完铜的钢铜复合焊管通过定径机进行管子外径尺寸定径；
[0084] (g)、探伤：对定径后的钢铜复合焊管的焊缝进行涡流探伤，检查焊缝有无疵点；
[0085] (h)、收盘：将探伤合格的钢铜复合焊管收卷成盘状；
[0086] (i)、验漏：将收盘后的钢铜复合焊管进行水下充气验漏，其中气压为IOkg ；
[0087] (j)、第一次退火：将验漏合格的钢铜复合焊管进行边矫直边连续式退火，退火温度为760°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0088] (k)、拉拔：将退火后的钢铜复合焊管进行拉拔，使焊缝上喷到的铜与钢铜复合焊管之间更加融合、光亮，而且可以去除钢铜复合焊管表面的小毛刺，使定径的尺寸更加准确；
[0089] (I)、第二次退火：将拉拔后的钢铜复合焊管进行边矫直边连续式退火，退火温度为760°C，退火时采用惰性气体保护，以确保钢铜复合焊管光亮；
[0090] (m)、收盘：用收卷机将退火后的钢铜复合焊管收卷成盘状，管内充入惰性气体，两头密封后打包入库。
[0091] 上述的钢铜复合焊管的制造方法与现有的钢铜复合管的制造方法相比具有以下优点：本发明的制造方法可以实现成材率高、效率高、批量大、成本低地生产钢铜复合焊管。
[0092] 使用本发明的制造方法制得的钢铜复合焊管具有抗氧化、耐腐蚀、拉伸性能好、散热好等优点，而且成本较低、重量较轻、品质优良、机械性能好，可满足后续加工和使用的需要。
Claims (5)
1.钢铜复合焊管的制造方法，其特征在于：包括如下步骤：(一)、制造钢铜复合带：（a)、使用钢带作为原材料，将钢带进行表面酸洗清洗处理后， 进行冷轧至3.5±0. Imm的厚度，然后进行第一次退火，退火温度为880±5°C，退火时间不少于6小时，第一次退火完成后对钢带的复合面进行打毛处理；(b)、将厚度为O. 3±0. Olmm的铜带进行表面清洗处理后，对铜带的复合面进行打毛处理；(C)、同时将（a)步骤中打毛后的钢带加温至750±30°C，将（b)步骤中打毛后的铜带加温至550±30°C，然后将钢带的复合面与铜带的复合面相贴合后送入冷轧机轧制复合，并控制复合后的钢铜复合带的总厚度为I. 5±0. 05mm ；(d)、将复合后的钢铜复合带在气体保护下进行第二次退火，退火温度为880±5°C，退火时间不少于6小时，接着根据最终管材的需求轧制至所需厚度，此厚度即为所需焊制的钢铜复合焊管的壁厚，接着进行第三次退火，退火温度为880±5°C，退火时间不少于6小时，最后经过平整处理后，对钢铜复合带进行分条，得到所需宽度的钢铜复合带；(二)、制管：(a)、成型：将步骤(一）中制得的钢铜复合带输送至制管成型机组中进行管材成型，形成钢铜复合管筒，管材成型时铜层位于外面、钢层位于里面；(b)、焊接：将成型好后的钢铜复合管筒进行焊接；(C)、补铜：将焊接制得的钢铜复合焊管的焊缝处的外毛刺去除后，将铜丝熔融后喷涂至焊缝上；(d)、定径：将补完铜的钢铜复合焊管通过定径机进行管子外径尺寸定径；(e)、探伤：对定径后的钢铜复合焊管的焊缝进行涡流探伤，检查焊缝有无疵点；(f)、收盘：将探伤合格的钢铜复合焊管收卷成盘状；(g)、验漏：将收盘后的钢铜复合焊管进行水下充气验漏；(h)、第一次退火：将验漏合格的钢铜复合焊管进行边矫直边连续式退火，退火温度为 750±10°C，退火时采用惰性气体保护；(i)、拉拔：将退火后的钢铜复合焊管进行拉拔；(j)、第二次退火：将拉拔后的钢铜复合焊管进行边矫直边连续式退火，退火温度为 750±10°C，退火时采用惰性气体保护；(k)、收盘：用收卷机将退火后的钢铜复合焊管收卷成盘状，管内充入惰性气体，两头密封后打包入库。
2.根据权利要求I所述的钢铜复合焊管的制造方法，其特征在于：步骤(一）制造钢铜复合带中（c)工序所述的冷轧机的轧制力为70(Γ1200吨。
3.根据权利要求I所述的钢铜复合焊管的制造方法，其特征在于：步骤(一）制造钢铜复合带的（d)工序中，对分条后的钢铜复合带进行收卷；步骤(二）制管中（a)成型工序前还包括开卷工序和剪切对焊工序，其中开卷工序为：将步骤(一）中收卷后的钢铜复合带进行开卷；其中剪切对焊工序为：将开卷后的钢铜复合带进行表面清洗后，将后一卷的头部与前一卷的尾部剪切后进行对焊。
4.根据权利要求I所述的钢铜复合焊管的制造方法，其特征在于：步骤(二)制管中（b) 焊接工序中采用固态高频焊接。
5.根据权利要求I所述的钢铜复合焊管的制造方法，其特征在于：步骤(ニ)制管中（g) 验漏ェ序中水下充气的气压为10kg。
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