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Method for measuring steel temperature of trolley-type annealing furnace on line

An annealing furnace and trolley-type technology, which is applied in the field of on-line measurement of steel temperature in trolley-type annealing furnaces, can solve problems such as the inability to meet the annealing requirements of steel with high hardness, and the lack of a device for measuring steel temperature

Inactive Publication Date: 2011-09-21
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] High-alloy steels must be annealed after rolling and forging, especially for rolled and forged materials that have clear requirements for hardness. The difference between the steel type and the furnace temperature during the annealing and heat preservation stage will directly affect it. Currently, the trolley-type The annealing furnace mainly uses an automatic temperature control device to monitor the furnace temperature. It does not design a device for measuring the steel temperature, which cannot meet the annealing requirements of the steel with high hardness.

Method used

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Examples

Experimental program
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Embodiment

[0007] Embodiment: The present invention has been tested in Shanxi Taigang Stainless Steel Co., Ltd. profile factory radial forging operation area 1, 2# table annealing furnace.

[0008] Using the two fire viewing holes at the back of the furnace, insert two independently wired armored thermocouples through the two fire viewing holes. Each armored thermocouple is connected to a paperless recorder. Each armored thermocouple is 4 meters long. The above long-term connection; after the trolley annealing furnace is loaded with steel, the trolley is pulled in, and the armored thermocouple is fixed on the upper surface of the middle of the steel. The furnace door is then closed for normal annealing.

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PUM

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Abstract

The invention relates to a method for measuring steel temperature of a trolley-type annealing furnace on line and belongs to the field of thermal treatment of metal materials. The method comprises the following steps of: inserting two independently wired sheathed thermocouples from two fire observation holes on the rear wall of the trolley-type annealing furnace; externally connecting a paper-free recorder and the sheathed thermocouples; drawing a trolley in after the trolley-type annealing furnace is armored with steel; meanwhile, fixing the sheathed thermocouples on the upper surface of the middle part of the steel; and shutting off a furnace door and performing normal annealing. By online detection, the temperature on the surface of annealing steel can be tested and the change of the steel temperature in the furnace can be monitored dynamically, so that the steel annealing requirement that the annealed steel temperature has a special hardness preservation requirement can be met.

Description

technical field [0001] The invention belongs to the field of heat treatment of metal materials, and in particular relates to a method for online measurement of steel temperature in a trolley-type annealing furnace. Background technique [0002] High-alloy steels must be annealed after rolling and forging, especially for rolled and forged materials that have clear requirements for hardness. The difference between the steel type and the furnace temperature during the annealing and heat preservation stage will directly affect it. Currently, the trolley-type The annealing furnace mainly uses an automatic temperature control device to monitor the furnace temperature. It is not designed to measure the steel temperature, which cannot meet the annealing requirements of the steel with high hardness. Contents of the invention [0003] The invention provides a method for online measurement of steel temperature in a trolley-type annealing furnace, the purpose of which is to use the ex...

Claims

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Application Information

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IPC IPC(8): F27D21/00F27B3/28
Inventor 乔小梅许立伟郭强王少东杨继忠
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD