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发明公开
CN1560421A 钻井用管材的内涂层工艺 有权

钻井用管材的内涂层工艺
摘要：
本发明涉及一种钻井用管材的内涂层工艺。一种钻井用管材的内涂层工艺，包括管材前期的丝扣清洗、热清理和表面喷砂处理，该工艺再按以下步骤进行操作：1.将经前期处理的管材采用环氧酚醛树脂类涂料TC2000系列进行底漆喷涂，然后进行烘烤，烘烤温度为120－150℃，烘烤时间为50－70分钟；2.管材冷却后采用环氧酚醛树脂类涂料TC2000系列进行面漆喷涂，然后进行烘烤，烘烤温度为120－150℃，烘烤时间为50－70分钟；3.固化处理，将管材放入连续炉中进行固化处理，固化温度为200－240℃，固化时间为60分钟。本发明的应用在于简化了喷涂设备的同时，又可以提高管材的防腐性和耐磨性，扩大管材应用范围，满足生产需要，具有良好的经济效益。
摘要（英）：

The invention relates to inner coating process for drilling pipes. The process includes preceding threaded rinsing, heat eliminating and sand-spraying process to surface; the process is operated according to following steps: 1. the preceding processed pipe uses epoxy phenol resin paint TC2000 series to spray primer, then carries on bake to it, the temperature is 120-150deg.C, the time is 50-70 minutes; 2. uses epoxy phenol resin paint TC2000 series to carry on finishing coat to the pipe after the pipe is cooled, then carries on bake, the baking temperature is 120-150deg.C, the time is 50-70 minutes; 3. solidification process, the pipe is put into the continuous furnace to be solidified, the solidification temperature is 200-240deg.C, the time is 60 minutes. The invention simplifies the painting device, and it increases the corrosion and friction resisting performance.

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