Metal Technology

Metal technology introduces everything about metal processing, which ranges from metal rolling, surface processing to heat treatment and the like. If you are not content to know the knowledge, here is "what to do".

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Difference Between Air Laser Cutting & Nitrogen Laser Cutting

Air laser cutting and nitrogen laser cutting are nothing uncommon in cutting stainless steel sheet plate for higher precision requirement, in comparison with the traditional plasma cutting technology.

Different Melting Methods for High-Quality Stainless Steels

For stainless steel materials applied for high-end industries such as aerospace industry, the melting methods are always differentiated from conventional melting methods like intermediate frequency furnace ...

Surface Treatment Methods and Effects on Stainless Steel Pipes

Stainless steel pipe finish varies with environments. Knowing how environment will affect stainless steel pipes can help us make the right choice on stainless steel types, otherwise stainless steel pipes will also suffer from rust and corrosion ...

Introduction of Cold Rolling Process

Cold rolling process involves using hot-rolled steel coil as raw material, removing its oxide skin by pickling, followed by tandem cold rolling. The finished product is rolled hard roll. Due to continuous cold deformation, the cold work hardening ...

Introduction of Hot Rolling Process

Hot rolling is rolling above the recrystallization temperature, contrary to cold rolling which is rolling below the recrystallization temperature. To put it simply, hot rolling is a process in which the steel billet is subjected to several rounds of rolling after ...

What is Quenching? Why Steel Needs to be Quenched?

Quenching is a heat treatment process that involves heating steel to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hyper-eutectoid steel), preserving the heat for a period of time to allow for complete or partial ...

What is Annealing? Why Steel Needs to be Annealed?

Annealing is a metal heat treatment process that involves slowly heating the metal to a certain temperature and preserving for a sufficient period of time and then cooling it off at a suitable speed. The purpose is to reduce hardness, improve machinability, ...

The Surface Processing Technology of Stainless ... (Ⅱ)

Many surface processing technologies, classified by numbering or other methodologies, have been incorporated into relevant standards, such as the American Standard ASTM A484, the British Standard BS1449 and the European Standard ...

The Surface Processing Technology of Stainless ... (Ⅰ)

There are roughly five surface processing techniques applicable to stainless steel, i.e., rolling surface processing, mechanical surface processing, chemical surface processing, anilox surface processing and color surface processing to be ...

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