How to Prevent The Double Head Bolt from Rusting?

Double headed fish bolt is a very important railway accessory, but after long-term’s using, it may become rusty, which can affect the normal use in the application. Then we will introduce some anti rust method.

1. lubricating Method

First use the lubricat to soak the fish bolt for more than 6 hours, and then remove the oil perimeter of the. Lubricating method can prolong the service life of the fish bolt.

2. Heating Principle 

If the double head bolt is fixed to large metal objects, a small propane torch is needed to heat the surrounding area of the double head. Our goal is to heat the metal around double head, if the heat enters into the bolt, the bolt will also expand and remove will be more difficult. Allow cooling and torch retry. The penetration of oil will help to train the thread between the rust during heating.

Railway workers must do the daily railway inspection and maintenance work of railway track and the accessories well. Once finding problems, solve the problems immediately. Reducing the abnormal wear between the accessories and decreasing the replacing times of railway accessories, lower the costs and ensure the safety.