About

About

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
Product Center

Product Center

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
Solution

Solution

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
Tech Support

Tech Support

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
News

News

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
Contact

Contact

Dongguan Baoxing Lubricating Oil Co., Ltd. is a special lubricating grease manufacturer integrating production, research and development, and sales. It mainly deals in Baoxing "B·X" lubricating oil and grease, and specializes in customizing various types of product assembly and equipment maintenance lubricating oil and grease for the manufacturing industry.

View more 》
中文
400-030-2118

润滑脂变色后还能使用吗?


Release time:

2025-12-16

润滑油

润滑脂在储存、使用过程中,会出现变质变色的情况,究其原因,可分为物理原因和化学原因。物理方面因为润滑脂在使用过程中会受到机器的摩擦、剪切等,会导致润滑脂的稠度发生变化,从而造成润滑脂变质变色。化学方面主要是润滑脂受热、接触空气等发生氧化、乳化等现象,润滑脂的结构遭到破坏,从而变质变色。

润滑脂变色原因

01

空气氧化

润滑脂接触空气中的氧,就会逐渐被氧化,随着氧化,润滑脂颜色逐渐变深,例如从浅黄色逐步变深为红棕色,最后变黑。

正常情况下,这种原因引起的颜色变化应该是逐渐的,如果突然出现颜色变化,要排查原因。

02

杂质污染

生产环境中的灰尘、泥土及类似杂质会沾染在润滑脂表面,造成污染,引发润滑脂变干甚至变质。

润滑油

03

水分乳化

润滑脂接触到水分,表面发生乳化现象,促使润滑脂软化,水分含量越多乳化越严重,润滑脂颜色越浅,光泽越暗而且不透明。

04

高温蒸发

轴承注入的润滑脂过多或不足、机器安装不当或负载过重都可能引起机器过热,高温会加快润滑脂氧化变质,并且加速基础油的析出及蒸发损失,使润滑脂越来越干,失去润滑功能。

润滑脂变色处理

在发现润滑脂变质变色后是否能继续使用?全部丢弃增加企业成本,继续使用又不知是否会因达不到润滑效果而造成机器磨损?

如果是轻微的变质变色,比如只有表面一层变色,可以将表面一层刮去,露出未变色的润滑脂继续使用。

如果变色情况较严重,不用考虑,直接扔了买新的!

精密度高的生产加工中,为保险起见,最好是通过检测润滑脂的酸碱度看是否能用,若变酸性就不要在贵重仪器上用了,以免产生腐蚀,不过可以降低标准用在粗糙的设备上哦~

润滑油