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What is quenching, tempering, normalizing and annealing
The differences of normalizing, tempering, annealing and quenching lie in different processes, different changes of material structure and different results of material properties.
What is quenchin...
The problem of heat treatment defects of medium thick steel plate and its treatment method
With the development and progress of medium thick steel plate technology, people pay more attention to the product quality, and the production enterprises pay more attention to the requirements of pro...
what’s the Nitric Acid
Nitric acid (HNO₃) is a colorless liquid with yellow or red fumes with an acrid odor. Exposure to nitric acid can cause irritation to the eyes, skin, and mucous membrane; it can also cause delayed pul...
The acknowledge of swage nipples fittings
ASME B16.11 Swage Nipple is used to connect two different sized pipe fittings. Unlike normal nipples, these have two different diameters at the two ends. The dimensions of the stainless steel compress...
Welding Joints: Fillet welded & Butt welded Joint
A welding joint is a point or edge where two or more pieces of metal or plastic are joined together. They are formed by welding two or more workpieces (metal or plastic) according to a particular geom...
What is Hydrostatic Testing for water pipeline?
Hydrostatic testing is the primary method of testing for leaks and evaluating the structural integrity of meter racks, cylinders, vessels, pipes, tubing and other pressure vessels. It is performed by ...
What’s the Heat Exchanger?
Heat exchangers are devices designed to transfer heat between two or more fluids—i.e. H. Liquids, vapors or gases - with different temperatures. Depending on the type of heat exchanger used, the heat ...
What’s the sand blasting?
The process of cleaning and roughening the surface of the substrate by utilizing the impact action of high-speed sand flow. Using compressed air as a force to form a high-speed jet to spray material (...
What is shot peening
Shot peening is a process that uses a high-speed rotating impeller to shoot the shot out at high speed, hit the workpiece surface, and clean or strengthen the workpiece surface. The materials us...
the Joint sealing of flange – why 304 material is not recommended for bolts?
Joint sealing of flange – why 304 material is not recommended for bolts?In flange joint sealing, when carbon steel flanges or stainless steel flanges are equipped with 304 material bolts, leakage prob...
