Chalk is mentioned
Most people would think of it
When the teacher imparts knowledge to us in the classroom
Chalk words written on a blackboard
But you know what
There is also a lot of chalk writing on the rolling stock of the railway wagons
What's the point of them?
Let's take a look
Chalk writing on the bogie
In charge of railway wagon stock
Disassembly, overhaul and assembly of bogies
Use the word "he" word inspection method of three inspections and one inspection
Check and accept the operation quality of the bogie
The bogie after reassembly
The vehicle fitter first needs to measure
Whether the clearance of each component is in accordance with the regulations
Whether the cotter pin is in place
After confirming that it is correct
The word "person" is written in white chalk
After the deputy foreman inspects
Then write "one horizontal" in yellow chalk
After the quality inspector checks the overall condition of the bogie
Write down the word "mouth" in blue chalk
The three parts form a single "合".
Finally, the acceptor accepts the quality of the bogie completion
Confirm that you are qualified, draw a circle with red chalk
It means that the bogie meets the quality requirements of the overhaul
Chalk lettering on the body of the car
In the technical inspection operation of railway wagons
Vehicles that need to enter the defrosting warehouse for operations
Inspectors are required to be on both sides of the vehicle
The word "paste" is written near the inspection mark
It means that the vehicle is pasted with a temperature test patch
and in second place on the left side of the vehicle and third place on the right side of the vehicle
The temperature test patch is pasted on the bearing front cover marking plate
Prevent the thawing temperature of the thawing chamber from exceeding 100 degrees Celsius
At the same time, it is also necessary to draw the field character grid
Mark clearly in the small squares in the field grid
The number of times a vehicle enters the defrosting warehouse
And write down the relevant team and date
When there is an empty car hanging in the train that enters the thawing warehouse
Write the word "empty" near the inspection mark
And write the words prohibiting entering the thawing warehouse
Chalk writing on the coupler
Coupler buffers in railway wagons
Disassembly, overhaul and assembly work
To facilitate coupler installation
They will be on the coupler before work
Write down its original installation location in chalk
For example, the coupler is written "1-3-2".
The position of the coupler is the 2-position end of a 3-position vehicle
When inspecting the wear plate on the inside of the hook body
If the operator finds a crack in the weld
When the wear plate is worn out of limit, the wear plate is lost, and other faults
They will then use chalk on the end panel of the vehicle
Indicate where the fault is located
so that subsequent additions can be made
Chalk lettering on the wheelset of the vehicle
After the wheelset is press-fitted
The operator will measure its technical parameters
After it is determined that it complies with the technical regulations
Then use white chalk to draw a checkmark on the wheel
On behalf of the wheelset left and right ends of the press qualified
The wheelset can be conveyed to the inspection process
What do you think
Strange knowledge has increased again
Didn't expect a little chalk
There are so many uses for railways
Guys
What other places do you know where chalk is used?
Let's discuss it in the comment area!
Material: Baotou West Depot Rong Media Studio
Photo: Liu Boting
Editor: Ren Yuting
Xi Editor: Jin Hongwei
Review: Zhang Xiaozhe