CN103727354A - 具有防腐层的无缝钢管的生产方法 - Google Patents

具有防腐层的无缝钢管的生产方法 Download PDF

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CN103727354A
CN103727354A CN201310621634.4A CN201310621634A CN103727354A CN 103727354 A CN103727354 A CN 103727354A CN 201310621634 A CN201310621634 A CN 201310621634A CN 103727354 A CN103727354 A CN 103727354A
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须晓东
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Guangzhou Long Steel Pipe Industry Co ltd
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Abstract

本发明公开了一种具有防腐层的无缝钢管的生产方法，包括如下步骤：制备防腐耐磨涂料将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；对钢管主体表面进行喷射处理；采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。本发明提供的具有防腐层的无缝钢管的生产方法，其简单方便，涂膜性能优异，成本低。

Description

具有防腐层的无缝钢管的生产方法
技术领域
本发明涉及具有防腐层的无缝钢管的生产方法。
背景技术
无缝钢管一般都需要涂覆防腐层，但目前无缝钢管的涂膜性能都不理想，且成本高。
发明内容
本发明的目的在于提供一种具有防腐层的无缝钢管的生产方法，其简单方便，涂膜性能优异，成本低。
为实现上述目的，本发明的技术方案是设计一种具有防腐层的无缝钢管的生产方法，包括如下步骤：
1）反应釜中加入80-90质量份蓖麻油、15质量份有机粘土和8质量份分子量4000的聚醚二元醇，加热搅拌，升温至80℃，20-25分钟内滴加35-40质量份甲苯二异氰酸酯，搅拌2-3小时，再升温至90℃，搅拌2-3小时，再降温至60℃，向反应体系中加入100-120质量份苯乙烯，搅拌2-3小时，真空脱气10-15分钟，再冷却至室温；
2）再向反应体系中加入3质量份分子量4000的聚醚二元醇、7-9质量份蓖麻油、1-2质量份偶氮二异丁睛、0.4-0.7质量份二月硅酸二丁基锡，搅拌2-3小时；
3）再将反应体系升温至70℃，保温7-8小时，再真空脱气，冷却至室温，得防腐耐磨涂料；
4）将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；
5）对钢管主体表面进行喷射处理；
6）采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。 
本发明的优点和有益效果在于：提供一种具有防腐层的无缝钢管的生产方法，其简单方便，涂膜性能优异，成本低。
具体实施方式
下面结合实施例，对本发明的具体实施方式作进一步描述。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。
本发明具体实施的技术方案是：
实施例1
一种具有防腐层的无缝钢管的生产方法，包括如下步骤：
1）反应釜中加入90质量份蓖麻油、15质量份有机粘土和8质量份分子量4000的聚醚二元醇，加热搅拌，升温至80℃，25分钟内滴加40质量份甲苯二异氰酸酯，搅拌3小时，再升温至90℃，搅拌3小时，再降温至60℃，向反应体系中加入120质量份苯乙烯，搅拌3小时，真空脱气15分钟，再冷却至室温；
2）再向反应体系中加入3质量份分子量4000的聚醚二元醇、9质量份蓖麻油、2质量份偶氮二异丁睛、0.7质量份二月硅酸二丁基锡，搅拌3小时；
3）再将反应体系升温至70℃，保温8小时，再真空脱气，冷却至室温，得防腐耐磨涂料；
4）将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；
5）对钢管主体表面进行喷射处理；
6）采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。
实施例2
一种具有防腐层的无缝钢管的生产方法，包括如下步骤：
1）反应釜中加入80质量份蓖麻油、15质量份有机粘土和8质量份分子量4000的聚醚二元醇，加热搅拌，升温至80℃，20分钟内滴加35质量份甲苯二异氰酸酯，搅拌2小时，再升温至90℃，搅拌2小时，再降温至60℃，向反应体系中加入100质量份苯乙烯，搅拌2小时，真空脱气10分钟，再冷却至室温；
2）再向反应体系中加入3质量份分子量4000的聚醚二元醇、7质量份蓖麻油、1质量份偶氮二异丁睛、0.4质量份二月硅酸二丁基锡，搅拌2小时；
3）再将反应体系升温至70℃，保温7小时，再真空脱气，冷却至室温，得防腐耐磨涂料；
4）将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；
5）对钢管主体表面进行喷射处理；
6）采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。
实施例3
一种具有防腐层的无缝钢管的生产方法，包括如下步骤：
1）反应釜中加入84质量份蓖麻油、15质量份有机粘土和8质量份分子量4000的聚醚二元醇，加热搅拌，升温至80℃，22分钟内滴加37质量份甲苯二异氰酸酯，搅拌2.5小时，再升温至90℃，搅拌2.5小时，再降温至60℃，向反应体系中加入110质量份苯乙烯，搅拌2.5小时，真空脱气14分钟，再冷却至室温；
2）再向反应体系中加入3质量份分子量4000的聚醚二元醇、7.9质量份蓖麻油、1.2质量份偶氮二异丁睛、0.47质量份二月硅酸二丁基锡，搅拌2.5小时；
3）再将反应体系升温至70℃，保温7.5小时，再真空脱气，冷却至室温，得防腐耐磨涂料；
4）将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；
5）对钢管主体表面进行喷射处理；
6）采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。
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润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (1)

1.具有防腐层的无缝钢管的生产方法，其特征在于，包括如下步骤：
1）反应釜中加入80-90质量份蓖麻油、15质量份有机粘土和8质量份分子量4000的聚醚二元醇，加热搅拌，升温至80℃，20-25分钟内滴加35-40质量份甲苯二异氰酸酯，搅拌2-3小时，再升温至90℃，搅拌2-3小时，再降温至60℃，向反应体系中加入100-120质量份苯乙烯，搅拌2-3小时，真空脱气10-15分钟，再冷却至室温；
2）再向反应体系中加入3质量份分子量4000的聚醚二元醇、7-9质量份蓖麻油、1-2质量份偶氮二异丁睛、0.4-0.7质量份二月硅酸二丁基锡，搅拌2-3小时；
3）再将反应体系升温至70℃，保温7-8小时，再真空脱气，冷却至室温，得防腐耐磨涂料；
4）将实心管坯截成所需长度，在穿孔机上穿孔，管坯内部形成空腔，再送至自动轧管机上轧制，最后经均整机均整壁厚，得钢管主体；
5）对钢管主体表面进行喷射处理；
6）采用加热无气喷涂法将防腐耐磨涂料涂覆在处理后的钢管主体表面形成涂膜，自然干燥。
CN201310621634.4A 2013-11-30 2013-11-30 具有防腐层的无缝钢管的生产方法 Expired - Fee Related CN103727354B (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102786873A (zh) * 2012-08-21 2012-11-21 昆明理工大学 一种纳米复合防腐涂料及其制备方法
CN103073960A (zh) * 2013-02-03 2013-05-01 张芝莲 一种具有防腐层的无缝管
CN103073992A (zh) * 2013-02-03 2013-05-01 张延� 一种具有防腐层的无缝管的生产方法
CN103089876A (zh) * 2013-02-03 2013-05-08 刘美福 一种具有纳米防腐层的波形弹簧的制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102786873A (zh) * 2012-08-21 2012-11-21 昆明理工大学 一种纳米复合防腐涂料及其制备方法
CN103073960A (zh) * 2013-02-03 2013-05-01 张芝莲 一种具有防腐层的无缝管
CN103073992A (zh) * 2013-02-03 2013-05-01 张延� 一种具有防腐层的无缝管的生产方法
CN103089876A (zh) * 2013-02-03 2013-05-08 刘美福 一种具有纳米防腐层的波形弹簧的制备方法

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