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Energy-saving gas conditioning furnace and thermal processing method for hot rolling of seamless steel pipes

A seamless steel pipe, energy-saving technology, applied to heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of uneven heating, large power loss, long intermittent time, etc., to achieve sufficient and uniform heating, good heat treatment effect, and high thermal energy Take advantage of the full effect

Inactive Publication Date: 2011-06-15
SHANDONG ZHENGCHANG COAL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Uneven heating and poor tempering effect;
[0004] 2. The intermittent time is long, the efficiency is low, and the power loss is large;
[0005] 3. The electric power is large, which is not conducive to expanding the production scale;
[0006] 4. The production cost is too high

Method used

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  • Energy-saving gas conditioning furnace and thermal processing method for hot rolling of seamless steel pipes
  • Energy-saving gas conditioning furnace and thermal processing method for hot rolling of seamless steel pipes
  • Energy-saving gas conditioning furnace and thermal processing method for hot rolling of seamless steel pipes

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Embodiment Construction

[0053] Attached below Figure 1-8 The present invention is described further:

[0054] Such as Figure 1-8 Shown:

[0055] The energy-saving hot-rolled seamless steel pipe gas conditioning furnace of the present invention mainly includes a kiln body 11, a roller table transmission part, an automatic feeding device 5, a temperature control device, a fast transmission device, and an electrical control system.

[0056] Such as Figure 1~2 Shown:

[0057] The kiln body 11 is sequentially divided into a preheating zone 27, a heating zone 25, and a high temperature zone 24 along the feeding and discharging direction, and a flue 39 and a chimney 6 are respectively arranged at the bottom and top of the front end of the preheating zone 27.

[0058] The roller table transmission part is installed on both sides of the kiln body 11, and its two ends extend out of the kiln body 11, including the transmission roller 8, the sprocket 3, the support bearing 54, the anti-wear ring 55, the a...

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Abstract

The invention relates to an energy-saving gas conditioning furnace and thermal processing method for the hot rolling of seamless steel pipes, which belongs to the field of thermal processing of seamless steel pipes and specifically relates to a gas conditioning furnace and process capable of implementing quenching and tempering processes of seamless steel pipes. The gas conditioning furnace comprises a kiln body (11) and a roller way transmission part, and is characterized in that the front end of the kiln body (11) is provided with an automatic feeding device (5), both sides of the kiln body(11) are respectively provided with the roller way transmission part and a temperature control device, and an electrical control device is arranged outside the kiln body (11). The method comprises the following steps: moving seamless steel pipes into the kiln body (11) by means of the automatic feeding device (5), gradually and sufficiently heating in the kiln body (11), quickly moving the seamless steel pipes (9) into a straightener by means of a quick transmission device, and performing straightening and quenching procedures. By adopting gas heating, electric power consumption is reduced, so that the production scale can be expanded; the kiln body ensures that the seamless steel pipes can be sufficiently and uniformly heated in the kiln body; the seamless steel pipes can be quickly discharged from the kiln body by the quick transmission device, thereby satisfying the optimal temperature required for the quenching and tempering processes; and the invention has the advantages of shortaverage time for finishing the conditioning process, low cost and the like.

Description

technical field [0001] The energy-saving hot-rolled seamless steel pipe gas conditioning furnace and heat treatment method belong to the field of heat treatment of seamless steel pipes, and in particular relate to a gas conditioning equipment and process capable of realizing the quenching and tempering process of seamless steel pipes. Background technique [0002] The shape of the seamless steel pipe is not changed, but the mechanical properties, physical properties and chemical properties of the seamless steel pipe are changed through the quenching and tempering heat treatment process, that is, the strength and toughness of the seamless steel pipe are improved to achieve the expected performance. The process combined with tempering is called quenching and tempering, and the implementation of this process usually uses a box furnace or an intermediate frequency furnace. The heating of the box furnace is uneven, that is, the temperature at both ends of the seamless steel pipe ...

Claims

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Application Information

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IPC IPC(8): C21D9/08
Inventor 赵炳昌
Owner SHANDONG ZHENGCHANG COAL MACHINERY
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