CN108823467A - 一种防腐蚀钛管的加工方法 - Google Patents

一种防腐蚀钛管的加工方法 Download PDF

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CN108823467A
CN108823467A CN201810696583.4A CN201810696583A CN108823467A CN 108823467 A CN108823467 A CN 108823467A CN 201810696583 A CN201810696583 A CN 201810696583A CN 108823467 A CN108823467 A CN 108823467A
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titanium tube
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范祥荣
王巍
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Suzhou Jinxiang Titanium Equipment Co Ltd
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Abstract

本发明公开了一种防腐蚀钛管的加工方法。包括以下几个步骤:(1)熔炼合金:将原料置于熔炼炉中熔炼;(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10‑15min,烘干后得到防腐蚀钛管。本发明的加工方法,通过合金成分,能够抵抗腐蚀,同时,在钛管表面涂抹一层抗腐蚀的涂料,进一步防腐蚀,制备得到的钛管适合用于换热器。

Description

一种防腐蚀钛管的加工方法
技术领域
本发明涉及一种防腐蚀钛管的加工方法,属于钛管加工技术领域。
背景技术
目前,在化工生产中,为了实现加热和致冷的目的,普遍采用列管式换热器来进行。列管的形式有直管式和 U 型管式。当换热器壳程中的介质为腐蚀性介质时,必须使用耐腐蚀的换热管,钛管是一种较为常用的耐腐蚀换热管,因此一种抗腐蚀的钛管是很有必要的。
发明内容
为了克服现有技术的不足,本发明提供了一种防腐蚀钛管的加工方法。
本发明是通过以下技术方案来实现的:
一种防腐蚀钛管的加工方法,包括以下几个步骤:
(1)熔炼合金:将原料置于熔炼炉中熔炼;所述原料为:C:1-2%,S:0.3-0.6%,Ni:0.3-0.5%,Si:0.5-1.2%,Zr:0.4-0.6%,Sn:1.1-1.5%,Fe:0.1-0.2%,余量为 Ti 和不可避免的杂质;
(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;
(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;
(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10-15min,烘干后得到防腐蚀钛管;所述防腐蚀涂料包括以下原料:磷酸钠、环氧丙烯酸树脂、聚乙二醇、十二烷基磺酸钠、壳聚糖和醋酸丁酯。
所述的一种防腐蚀钛管的加工方法,所述防腐蚀涂料各原料的重量份数分别为:磷酸钠10-20份、环氧丙烯酸树脂50-60份、聚乙二醇10-18份、十二烷基磺酸钠2-8份、壳聚糖1-5份和醋酸丁酯20-30份。
所述的一种防腐蚀钛管的加工方法,所述退火处理具体为:在真空条件下,将钛管坯料快速升温至280-320℃,保温10-15min;缓慢升温至650-750℃,保温30-60min;然后快速冷却至280-320℃,保温10-15min;冷却至常温。
所述的一种防腐蚀钛管的加工方法,所述熔炼时,加入熔炼精炼剂;所述熔炼精炼剂包括氯化钠、二氧化钛、三氧化二铝、氯化钾、氟化钙、氟铝酸钠、硝酸钠和硫酸钠。
所述的一种防腐蚀钛管的加工方法,所述熔炼精炼剂各原料的重量份数为:氯化钠10-15份、二氧化钛10-15份、三氧化二铝5-10份、氯化钾2-8份、氟化钙1-5份、氟铝酸钠1-5份、硝酸钠10-20份和硫酸钠5-10份。
所述的一种防腐蚀钛管的加工方法,所述熔炼精炼剂是通过以下步骤得到的:将各原料粉碎,充分搅拌混合,过80-100目的筛网,置于加热箱中加热去除结晶水,加热温度为90-100℃,加热时间为50-80min;冷却后即可得到熔炼精炼剂。
本发明所达到的有益效果:
本发明的加工方法,通过合金成分,能够抵抗腐蚀,同时,在钛管表面涂抹一层抗腐蚀的涂料,进一步防腐蚀,制备得到的钛管适合用于换热器。
本发明的抗腐蚀涂料各原料配合使用,成本较低,绿色环保,通过环氧丙烯酸树脂、聚乙二醇和十二烷基磺酸钠能够快速的在钛管表面形成一层保护膜,磷酸钠、壳聚糖和醋酸丁酯保证了膜的延展性。
具体实施方式
以下实施例仅用于更加清楚地说明本发明的技术方案,而不能以此来限制本发明的保护范围。
实施例1
一种防腐蚀钛管的加工方法,包括以下几个步骤:
(1)熔炼合金:将原料置于熔炼炉中熔炼;所述原料为:C:1-2%,S:0.3-0.6%,Ni:0.3-0.5%,Si:0.5-1.2%,Zr:0.4-0.6%,Sn:1.1-1.5%,Fe:0.1-0.2%,余量为 Ti 和不可避免的杂质;熔炼时,加入熔炼精炼剂;所述熔炼精炼剂各原料的重量份数为:氯化钠10份、二氧化钛10份、三氧化二铝10份、氯化钾2份、氟化钙5份、氟铝酸钠1份、硝酸钠20份和硫酸钠5份。
(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;
(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;所述退火处理具体为:在真空条件下,将钛管坯料快速升温至280-320℃,保温10-15min;缓慢升温至650-750℃,保温30-60min;然后快速冷却至280-320℃,保温10-15min;冷却至常温。
(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10-15min,烘干后得到防腐蚀钛管;所述防腐蚀涂料各原料的重量份数分别为:磷酸钠10份、环氧丙烯酸树脂60份、聚乙二醇10份、十二烷基磺酸钠8份、壳聚糖1份和醋酸丁酯30份。
通过分段退火的处理方式,使得钛管坯料退火充分、晶粒细化,组织排布均匀,从而使得最后的钛管成品壁厚均匀,表面质量好。
所述熔炼精炼剂是通过以下步骤得到的:将各原料粉碎,充分搅拌混合,过80-100目的筛网,置于加热箱中加热去除结晶水,加热温度为90-100℃,加热时间为50-80min;冷却后即可得到熔炼精炼剂。
通过熔炼精炼剂,细化了晶粒,同时保证了合金的纯度,使得钛管本身的性能达到最佳。
实施例2
一种防腐蚀钛管的加工方法,包括以下几个步骤:
(1)熔炼合金:将原料置于熔炼炉中熔炼;所述原料为:C:1-2%,S:0.3-0.6%,Ni:0.3-0.5%,Si:0.5-1.2%,Zr:0.4-0.6%,Sn:1.1-1.5%,Fe:0.1-0.2%,余量为 Ti 和不可避免的杂质;熔炼时,加入熔炼精炼剂;所述熔炼精炼剂各原料的重量份数为:氯化钠10份、二氧化钛15份、三氧化二铝5份、氯化钾8份、氟化钙1份、氟铝酸钠5份、硝酸钠10份和硫酸钠10份。
(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;
(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;所述退火处理具体为:在真空条件下,将钛管坯料快速升温至280-320℃,保温10-15min;缓慢升温至650-750℃,保温30-60min;然后快速冷却至280-320℃,保温10-15min;冷却至常温。
(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10-15min,烘干后得到防腐蚀钛管;所述防腐蚀涂料各原料的重量份数分别为:磷酸钠20份、环氧丙烯酸树脂50份、聚乙二醇18份、十二烷基磺酸钠2份、壳聚糖1份和醋酸丁酯20份。
所述熔炼精炼剂是通过以下步骤得到的:将各原料粉碎,充分搅拌混合,过80-100目的筛网,置于加热箱中加热去除结晶水,加热温度为90-100℃,加热时间为50-80min;冷却后即可得到熔炼精炼剂。
实施例3
一种防腐蚀钛管的加工方法,包括以下几个步骤:
(1)熔炼合金:将原料置于熔炼炉中熔炼;所述原料为:C:1-2%,S:0.3-0.6%,Ni:0.3-0.5%,Si:0.5-1.2%,Zr:0.4-0.6%,Sn:1.1-1.5%,Fe:0.1-0.2%,余量为 Ti 和不可避免的杂质;熔炼时,加入熔炼精炼剂;所述熔炼精炼剂各原料的重量份数为:氯化钠12份、二氧化钛13份、三氧化二铝8份、氯化钾6份、氟化钙2份、氟铝酸钠2份、硝酸钠16份和硫酸钠8份。
(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;
(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;所述退火处理具体为:在真空条件下,将钛管坯料快速升温至280-320℃,保温10-15min;缓慢升温至650-750℃,保温30-60min;然后快速冷却至280-320℃,保温10-15min;冷却至常温。
(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10-15min,烘干后得到防腐蚀钛管;所述防腐蚀涂料各原料的重量份数分别为:磷酸钠18份、环氧丙烯酸树脂55份、聚乙二醇16份、十二烷基磺酸钠5份、壳聚糖3份和醋酸丁酯22份。
所述熔炼精炼剂是通过以下步骤得到的:将各原料粉碎,充分搅拌混合,过80-100目的筛网,置于加热箱中加热去除结晶水,加热温度为90-100℃,加热时间为50-80min;冷却后即可得到熔炼精炼剂。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变形,这些改进和变形也应视为本发明的保护范围。

Claims (6)

1.一种防腐蚀钛管的加工方法,其特征是,包括以下几个步骤:
(1)熔炼合金:将原料置于熔炼炉中熔炼;所述原料为:C:1-2%,S:0.3-0.6%,Ni:0.3-0.5%,Si:0.5-1.2%,Zr:0.4-0.6%,Sn:1.1-1.5%,Fe:0.1-0.2%,余量为 Ti 和不可避免的杂质;
(2)制作坯料:采用锻造后挤压的方法制备得到钛管坯料;
(3)轧制:采用冷压机对钛管坯料进行多道次轧制,每次轧制后进行除油处理和退火处理;
(4)表面处理:将轧制后的钛管坯料浸泡于防腐蚀涂料中10-15min,烘干后得到防腐蚀钛管;所述防腐蚀涂料包括以下原料:磷酸钠、环氧丙烯酸树脂、聚乙二醇、十二烷基磺酸钠、壳聚糖和醋酸丁酯。
2.根据权利要求1所述的一种防腐蚀钛管的加工方法,其特征是,所述防腐蚀涂料各原料的重量份数分别为:磷酸钠10-20份、环氧丙烯酸树脂50-60份、聚乙二醇10-18份、十二烷基磺酸钠2-8份、壳聚糖1-5份和醋酸丁酯20-30份。
3.根据权利要求2所述的一种防腐蚀钛管的加工方法,其特征是,所述退火处理具体为:在真空条件下,将钛管坯料快速升温至280-320℃,保温10-15min;缓慢升温至650-750℃,保温30-60min;然后快速冷却至280-320℃,保温10-15min;冷却至常温。
4.根据权利要求1所述的一种防腐蚀钛管的加工方法,其特征是,所述熔炼时,加入熔炼精炼剂;所述熔炼精炼剂包括氯化钠、二氧化钛、三氧化二铝、氯化钾、氟化钙、氟铝酸钠、硝酸钠和硫酸钠。
5.根据权利要求4所述的一种防腐蚀钛管的加工方法,其特征是,所述熔炼精炼剂各原料的重量份数为:氯化钠10-15份、二氧化钛10-15份、三氧化二铝5-10份、氯化钾2-8份、氟化钙1-5份、氟铝酸钠1-5份、硝酸钠10-20份和硫酸钠5-10份。
6.根据权利要求4或5所述的一种防腐蚀钛管的加工方法,其特征是,所述熔炼精炼剂是通过以下步骤得到的:将各原料粉碎,充分搅拌混合,过80-100目的筛网,置于加热箱中加热去除结晶水,加热温度为90-100℃,加热时间为50-80min;冷却后即可得到熔炼精炼剂。
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