CN109585789A - 正板高温增压固化工艺 - Google Patents
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Abstract
本发明提供一种正板高温增压固化工艺,通过固化阶段设有五个步骤,转换阶段设有六个步骤,干燥阶段设有六个步骤,每个步骤的固化温度、时间、湿度、循环风机、循环周期、补氧时间、排气时间调整为最佳,同时对固化室内的压力进行控制,缩短了固化时间,保证了固化质量,提高了生产效率。
Description
技术领域
本发明涉及电池生产领域,尤其涉及一种正板高温增压固化工艺。
背景技术
极板的固化是指涂好膏的极板在一定的温度和时间等条件下,在铅膏胶凝过程中完成游离铅及板栅筋条表面铅的氧化以及碱式硫酸铅的再结晶和硬化的过程。在极板的固化干燥过程中,随着蒸发水的传质过程的进行,不允许破坏其网状结构;同时,在水分蒸发完毕前,还必须完成金属铅的氧化和 3PbO・PbSO4・H2O 的结晶过程。因此,在选择固化工艺时,应严格控制固化温度、相对湿度和固化时间三个参数。固化过程中的几种作用是相互联系的,无论哪种作用没有达到,固化的效果都不会很好,影响电池的容量和寿命。但是目前对于蓄电池正板的固化工艺固化时间十分长,超过三天甚至以上才能达到固化的效果,固化工艺效果差,因此解决这个问题就变得很重要了。
发明内容
本发明的目的是提供一种正板高温增压固化工艺,通过固化阶段设有五个步骤,转换阶段设有六个步骤,干燥阶段设有六个步骤,每个步骤的固化温度、时间、湿度、循环风机、循环周期、补氧时间、排气时间调整为最佳,同时对固化室内的压力进行控制,缩短了固化时间,提高了固化质量,解决了固化工艺时间长、效果差的问题。
本发明提供一种正板高温增压固化工艺,包括以下步骤:
步骤一:固化阶段:
(1)在温度75℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化9h;
(2)在温度70℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(3)在温度65℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(4)在温度60℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化3h;
(5)在温度58℃时,湿度为95%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化2h;
步骤二:转换阶段:
(1)在温度55℃时,湿度为90%,循环风机转速为20hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换2h;
(2)在温度55℃时,湿度为70%,循环风机转速为25hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(3)在温度50℃时,湿度为50%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(4)在温度45℃时,湿度为45%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换4h;
(5)在温度45℃时,湿度为40%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为0s的条件下转换8h;
(6)在温度55℃时,湿度为30%,循环风机转速为35hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下转换4h;
步骤三:干燥阶段:
(1)在温度60℃时,湿度为0%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为20s的条件下干燥3h;
(2)在温度65℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下干燥2h;
(3)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(4)在温度80℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥13h;
(5)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(6)在温度50℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥1h;
进一步改进在于:固化室采用密封耐高压固化室。
进一步改进在于:采用空压机向固化室内加压缩空气,增加固化室内的压力。
本发明的有益效果:通过固化阶段设有五个步骤,转换阶段设有六个步骤,干燥阶段设有六个步骤,每个步骤的固化温度、时间、湿度、循环风机、循环周期、补氧时间、排气时间调整为最佳,同时对固化室内的压力进行控制,缩短了固化时间,提高了固化质量。
具体实施方式
为了加深对本发明的理解,下面将结合实施例对本发明作进一步详述,该实施例仅用于解释本发明,并不构成对本发明保护范围的限定。
本实施例提供本发明提供一种正板高温增压固化工艺,包括以下步骤:
步骤一:固化阶段:
(1)在温度75℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化9h;
(2)在温度70℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(3)在温度65℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(4)在温度60℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化3h;
(5)在温度58℃时,湿度为95%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化2h;
步骤二:转换阶段:
(1)在温度55℃时,湿度为90%,循环风机转速为20hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换2h;
(2)在温度55℃时,湿度为70%,循环风机转速为25hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(3)在温度50℃时,湿度为50%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(4)在温度45℃时,湿度为45%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换4h;
(5)在温度45℃时,湿度为40%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为0s的条件下转换8h;
(6)在温度55℃时,湿度为30%,循环风机转速为35hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下转换4h;
步骤三:干燥阶段:
(1)在温度60℃时,湿度为0%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为20s的条件下干燥3h;
(2)在温度65℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下干燥2h;
(3)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(4)在温度80℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥13h;
(5)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(6)在温度50℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥1h。
固化室采用密封耐高压固化室。采用空压机向固化室内加压缩空气,增加固化室内的压力。
本实施例固化阶段设有五个步骤,转换阶段设有六个步骤,干燥阶段设有六个步骤,每个步骤的固化温度、时间、湿度、循环风机、循环周期、补氧时间、排气时间调整为最佳,同时对固化室内的压力进行控制,总体时间不超过三天,缩短了固化时间,保证了固化质量,提高了生产效率。
Claims (3)
1.一种正板高温增压固化工艺,其特征在于:包括以下步骤:
步骤一:固化阶段:
(1)在温度75℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化9h
(2)在温度70℃时,湿度为99.9%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(3)在温度65℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在2kpa的条件下固化3h;
(4)在温度60℃时,湿度为99%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化3h;
(5)在温度58℃时,湿度为95%,循环风机转速为10hz,循环周期为100s,补氧时间10s,压力保持在1.5kpa的条件下固化2h;
步骤二:转换阶段:
(1)在温度55℃时,湿度为90%,循环风机转速为20hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换2h;
(2)在温度55℃时,湿度为70%,循环风机转速为25hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(3)在温度50℃时,湿度为50%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为5s的条件下转换2h;
(4)在温度45℃时,湿度为45%,循环风机转速为30hz,循环周期为100s,补氧时间70s,压力保持在0kpa,排气时间为0s的条件下转换4h;
(5)在温度45℃时,湿度为40%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为0s的条件下转换8h;
(6)在温度55℃时,湿度为30%,循环风机转速为35hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下转换4h;
步骤三:干燥阶段:
(1)在温度60℃时,湿度为0%,循环风机转速为40hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为20s的条件下干燥3h;
(2)在温度65℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为30s的条件下干燥2h;
(3)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(4)在温度80℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥13h;
(5)在温度70℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥2h;
(6)在温度50℃时,湿度为0%,循环风机转速为50hz,循环周期为100s,补氧时间101s,压力保持在0kpa,排气时间为101s的条件下干燥1h。
2.如权利要求1所述的正板高温增压固化工艺,进一步改进在于:固化室采用密封耐高压固化室。
3.如权利要求1所述的正板高温增压固化工艺,进一步改进在于:采用空压机向固化室内加压缩空气,增加固化室内的压力。
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