Heating device for stainless steel blackening

A technology of blackening treatment and heating device, which is applied in immersion heating device, metal material coating process and other directions, can solve the problems of high energy consumption, lack of heating, heat preservation links, and increase in cost, and achieves increased heating service life, The effect of reducing maintenance costs and increasing work efficiency

Active Publication Date: 2015-02-18
浙江博海金属制品科技有限公司
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Problems solved by technology

[0003] A kind of blackening device that is used for quenching and tempering processing production line of round steel product as authorized announcement number CN201933156U, although structure is simple, blackening process is simple, and production efficiency is high, but lacks heating, heat preservation link in blackening process, causes energy Consumption is large, and the cost will increase accordingly

Method used

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  • Heating device for stainless steel blackening
  • Heating device for stainless steel blackening

Examples

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Embodiment 1

[0021] Example 1, such as Figure 1-2 As shown, a stainless steel blackened heating device includes a box body 1 with an open upper end and a cover plate 2 for closing the opening of the box body 1, and the cover plate 2 is connected to the box body 2 by plugging. When the stainless steel pipe was blackened, the cover plate 2 was in the state of sealing the casing 1 to ensure that the heat would not be lost. Two heating pipes 3 are arranged near the inner wall of the box 1, and the two heating pipes 3 are respectively arranged on opposite sides of the box 1, and the distance between one of the heating pipes 3 and the bottom surface of the box 1 is greater than The distance between another heating pipe 3 and the bottom surface of the box body 1 . Both ends of the heating pipe 3 extend outwards and pass through the casing 1 to form an inlet 33 and an outlet 34; an insulating layer 32 is arranged on the outer surface of the heating pipe 3, and the insulating layer 32 here can be...

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Abstract

A heating device for stainless steel blackening comprises a box body with the upper end open and a cover plate used for sealing the opening of the box body. At least one heating pipe is arranged on a position, close to the inner wall, in the box body, the two ends of the heating pipe extend outwards and penetrate through the box body to form an inlet and an outlet, an insulating layer is arranged on the outer surface of the heating pipe, and at least one expansion portion is arranged on the heating pipe. Circulation heating can be achieved through the heating pipe, the heating service life of the heating pipe can be prolonged, and the problem that in the prior art, an electric component is damaged frequently when being used for heating is avoided; work efficiency is improved, and maintenance cost is reduced.

Description

technical field [0001] The invention relates to a process device, especially a heating device, used in the stainless steel surface treatment process. Background technique [0002] Blackening is a common method of chemical surface treatment. The principle is to produce an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention. And the control of heat in the blackening treatment process is also an important index to improve the blackening treatment process. [0003] A kind of blackening device that is used for quenching and tempering processing production line of round steel product as authorized announcement number CN201933156U, although structure is simple, blackening process is simple, and production efficiency is high, but lacks heating, heat preservation link in blackening process, causes energy Consumption is large, and the cost will increase accordingly. Contents of the invention [0004] The object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/82C23C22/73
Inventor 韩永全
Owner 浙江博海金属制品科技有限公司
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