Search results for keyword: ammonia
"Water seam" crystallizer
A water seal crystallizer is a heat transfer device used in the cooling and condensing of vapor streams. It is a type of condenser, in which a cold liquid is circulated between two rows of tubes in order to cool and condense a vapor stream. The water seal crystallizer offers several advantages ove......
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Features of BRN processing technology
BRN Treatment Technology
Bio reclamation nitrogen (BRN) is a new and innovative technology developed by the National Oceanic and Atmospheric Administration (NOAA). BRN treatment allows for nitrogen in wastewater to be used more efficiently and effectively in natural systems, helping to improve wa......
(soft) nitriding of steel
The Nitriding of Soft Steels
Nitriding is a process that is often used to strengthen the surface of metals such as steel. It involves adding nitrogen atoms to the surface of the metal, which helps create a hard, wear-resistant layer. Nitriding is especially useful for soft steels and other materi......
Surface hardening (1)
，题目是：Surface Hardening (I)
Surface hardening is a type of heat treatment process used to alter the properties of the surface layer or layers of a part. The portion of the part which is altered during this process is the exterior or boundary of the part and the layer below, which may be compose......
Nitrocarburizing
Nitrogen Carbon Co-diffusion
Nitrogen and carbon are two of the most important elements required by living organisms. As such, they are essential components in the biosphere, often existing in the form of molecules or compounds. But, when these elements start to mix, a process known as nitrogen c......
Steel wire heat treatment
Hot dip galvanizing of wire
Hot dip galvanizing of wire (HDG) is a metal finishing process that is used to protect and extend the service life of metal wires and cables exposed to the elements. The process involves submerging metal wire in an acid bath and then applying a coating of zinc to the s......
An ancient and practical chemical heat treatment method is introduced
Carburizing is an ancient and well known method of chemical heat treatment of steels. It involves controlled heating of steel in an atmosphere containing a gas such as carbon monoxide or some other appropriate gas mixture. Carburizing imparts increased hardness and wear resistance to the surface l......
Process Parameters of Nitriding Several Steels in ammonia
Introduction
Nitriding is a process used to enhance corrosion and wear resistance of a material. It is a form of heat treating performed by introducing nitrogen into a material at a temperature between 500 and 565 °C, also known as the nitriding temperature. Generally, nitriding is applied to met......
Decarburization annealing
Carbonitriding
Carbonitriding is a metal heat treatment process used to improve the surface properties of certain metal parts. It involves the introduction of carbon and nitrogen into the surface of a metal object through a process of controlled temperature heating. This process alters the micros......
Sulfurization
Successful Use of SO2 (Sulfur Dioxide) in Wastewater Treatment
Sulfur dioxide (SO2) is commonly used as a treatment agent for controlling engineering and environmental problems in wastewater treatment systems. It is both a powerful oxidant and a reducing agent, and it can provide efficient treat......
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