C21D1/54 - CPC Classification Index

ClassID:

118939 ⎘

C21D1/54 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering Determining when the hardening temperature has been reached by measurement of magnetic or electrical properties

Recent Application in this class:

20160076119

2016-03-17

Determining the ferrite phase fraction after heating or cooling of a steel strip

20110232348

2011-09-29

Evaluation method of residual stress in water jet peening and method of executing water jet peening

20110171590

2011-07-14

DEVICE FOR HEATING ROD-TYPE WORK PIECES

20100132846

2010-06-03

Spring element made from a ferritic chromium steel

20090188910

2009-07-30

Heat treatment system and method using active feedback

20090053097

2009-02-26

Fire-resistant steel material superior in HAZ toughness of welded joint and method of production of same

20050279434

2005-12-22

Spring element made from a ferritic chromium steel

15589613

2018-06-19

Vertical multi-batch magnetic annealing systems for reduced footprint manufacturing environments