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How does GCr15 bearing steel prevent rust?

Source:未知Author:hyzc Addtime:2021-07-15 Click:
 Bearings made of GCr15 bearing steel are prone to rust in outdoor environments.
 
    Because the Cr content of this steel GCr15 is only about 1.5%, the Cr element at this time is to improve the mechanical properties of the steel. The Cr of the bearing steel is to improve the hardenability and not to prevent rust. Like ordinary metals, a humid environment can cause corrosion. Therefore, anti-rust measures for bearings and their parts are still very necessary.
 

How to prevent bearing rust?
 
1. Surface cleaning method:
 
    Cleaning must be based on the nature of the surface of the anti-rust material and the prevailing conditions, and an appropriate method must be selected. Commonly used are solvent cleaning method, chemical treatment cleaning method and mechanical cleaning method. When the surface is dry and clean, it can be dried with filtered dry compressed air, or dried with a dryer at 120~170℃, or dried with clean gauze.
 
2. Method of applying anti-rust oil
 
    (1) Soaking method: Some small bearings are immersed in anti-rust grease to make the surface adhere to a layer of anti-rust grease. The thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease.
 
    (2) Brushing method: It is used for large bearings that are not suitable for immersion or spraying. When brushing, it is necessary to pay attention not to accumulate, but also to prevent leakage. (3) Spray method: Some large bearings cannot be oiled by immersion method. Generally, use filtered compressed air with a pressure of about 0.7Mpa for spraying in a clean air place. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil, but complete fire protection and labor protection measures must be adopted.


   Luoyang Hongyuan Bearing Technology Co., Ltd. (HONB) was established in December 2005, located in the Luoyang ,China. HONB with more than 300 employees which specializes in manufacture of YRT,YRTS,YRTM,ZKLDF Series rotary table bearings, RA,RB,RE,RU,CRBH,SX Series crossed roller bearings and CSG,SHG,HYR series robot reducer bearings. The precision grades are P2, P4 and P5, and the size range is 20mm ~2000mm.


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