C21D9/565 - CPC Classification Index

ClassID:

119110 ⎘

C21D9/565 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length; Furnaces for treating strips or wire; Continuous furnaces for strip or wire; Details Sealing arrangements

Recent Application in this class:

20260085374

JET-TYPE DIRECT-FIRED PREHEATING SYSTEM

20200040425

Sealing device

20200002781

Sealing device for a continuous furnace

20190242002

Manufacture of a stress relieved length of steel having an oxidised surface layer

20170219288

STEEL-STRIP PRODUCTION METHOD, AND STEEL STRIP

20170218476

Steel-strip production apparatus

20130305559

Method for controlling a protective gas atmosphere in a protective gas chamber for the treatment of a metal strip

20130277897

Steel wire tempering liquid wiping device

20110292962

Electric induction gas-sealed tunnel furnace

20090158975

DEVICE FOR SECURING A FURNACE PROVIDED WITH A RAPID COOLING AND HEATING SYSTEM OPERATING UNDER CONTROLLED ATMOSPHERE

20090123651

Continuous Annealing and Hot Dip Plating Method and Continuous Annealing and Hot Dip Plating System of Steel sheet Containing Si