Lubrication Importance
Function of bearings,Types and How to read the bearing codes
Function of bearings, Types and How to read the bearing codes. Types of Bearings
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Non Destructive Test (NDT)– Procedure
NDE test: - NDE Inspection is used to detect any surface-connected discontinuities such as cracks from fatigue, quenching, and grinding, as well as fractures in joints. Material required for NDE test: 1) Penetrant (Red color) 2) Cleaner 3) Developer (White color) Penetrant: Penetrants are classified into two types. 1. Fluorescent 2.Non- Fluorescent. Fluorescent penetrants contain two or more dyes that fluoresce when excited by ultraviolet (UV-A) radiation. Non-Fluorescent penetrate inspection is performed in a darkened environment. NDE test Inspection steps:- 1. PRE-CLEANING 2. APPLICATION OF PENETRANT 3. EXCESS PENETRANT REMOVAL 4. APPLICATION OF DEVELOPER 1. PRE-CLEANING :- The test surface is cleaned to remove any dirt, paint, o...
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