Method for manufacturing heat-storage forging heating furnace by utilizing quartzitic sandstone

A forging heating and regenerative technology, used in lighting and heating equipment, furnaces, furnace components, etc., can solve the problems of poor high temperature corrosion resistance, high maintenance frequency, short service life, etc., to achieve high refractoriness, obvious pores Low rate, the effect of increasing strength

Active Publication Date: 2014-06-11
CHENGDU SHUANGLIU HENGSHENG FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing refractory heating furnace has a short service life, high maintenance frequency, high energy consumption and high cost, low high temperature strength, poor high temperature corrosion resistance, and the furnace body is prone to breakage or even explodes and collapses.

Method used

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  • Method for manufacturing heat-storage forging heating furnace by utilizing quartzitic sandstone

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Experimental program
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Effect test

Embodiment 1

[0025] First, design the furnace body structure of the regenerative forging heating furnace, then design the corresponding furnace scheme according to the gas source of the manufacturer, prepare and repair the refractory white foam stone bricks according to the needs, and finally use white foam bricks according to the furnace structure diagram Foam stone bricks are used as the refractory layer of the furnace wall and roof to create a regenerative forging furnace. After the furnace is formed, it is baked according to the furnace plan. The oven plan is: raise the furnace body from room temperature to 120°C at a rate of 5°C / h, heat preservation for 60 hours; then raise the temperature to 280°C at a speed of 5°C / h, and maintain heat preservation for 60 hours; Raise the temperature to 600°C at a speed of 10°C / h, heat preservation and maintenance for 40 hours; raise the temperature to 800°C at a speed of 10°C / h, heat preservation and maintenance for 20 hours; then raise the temperat...

Embodiment 2

[0027] First, design the furnace body structure of the regenerative forging heating furnace, then design the corresponding furnace scheme according to the gas source of the manufacturer, prepare and repair the refractory white foam stone bricks according to the needs, and finally use white foam bricks according to the furnace structure diagram Foam stone bricks are used as the refractory layer of the furnace wall and roof to create a regenerative forging furnace. After the furnace is formed, it is baked according to the furnace plan. The oven program is as follows: raise the furnace body from room temperature to 110°C at a rate of 10°C / h, heat preservation and maintenance for 70 hours; Raise the temperature to 620°C at a speed of 15°C / h, heat preservation and maintenance for 40 hours; raise the temperature to 820°C at a speed of 15°C / h, and heat preservation and maintenance for 20 hours; then raise the temperature to 1200°C at a speed of 20°C / h, and heat preservation and maint...

Embodiment 3

[0029] First, design the furnace body structure of the regenerative forging heating furnace, then design the corresponding furnace scheme according to the gas source of the manufacturer, prepare and repair the refractory white foam stone bricks according to the needs, and finally use white foam bricks according to the furnace structure diagram Foam stone bricks are used as the refractory layer of the furnace wall and roof to create a regenerative forging furnace. After the furnace is formed, it is baked according to the furnace plan. The oven plan is: raise the furnace body from room temperature to 130°C at a rate of 5°C / h, heat preservation and maintenance for 80 hours; The temperature is raised to 630°C at a speed of h, and the heat preservation is maintained for 45 hours; the temperature is raised to 830°C at a speed of 10°C / h, and the heat preservation is maintained for 20 hours;

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Abstract

The invention belongs to the technical field of the production method of a heating furnace, and particularly relates to a method for manufacturing a heat-storage forging heating furnace by utilizing quartzitic sandstone, which aims at solving the technical problems of the existing refractory material heating furnace that the service life is short, the repairing frequency is high, the energy consumption is high, the cost is large, the high-temperature strength is low, the high-temperature anticorrosion capacity is poor, a furnace body is likely to fracture and even to explode and collapse, and the like. The invention provides the method for manufacturing the heat-storage forging heating furnace by utilizing the quartzitic sandstone. The method comprises the following steps of manufacturing a forging heating furnace by utilizing the quartzitic sandstone according to a furnace body structure chart, drying the furnace after the furnace is molded, wherein the heating speed for drying the furnace is 5 to 10 DEG C per hour, and the final drying temperature is 1100 to 1400 DEG C. The novel method is provided for manufacturing the heat-storage forging heating furnace.

Description

technical field [0001] The invention belongs to the technical field of production methods of heating furnaces, and in particular relates to a method for manufacturing regenerative forging heating furnaces from white foam stone. technical background [0002] The rapid development of automobiles, general machinery, weapons, electronics, energy, construction, aviation, and aerospace has brought new opportunities to the manufacturing industry, but also brought greater challenges. The continuous emergence of various new processing methods meets the requirements of the modern manufacturing industry for the diversity of processing technologies. At the same time, as the most primitive and traditional manufacturing method—forging, it is still favored by people because of its high quality, high output, low energy consumption, and flexibility. At present, due to the immature technology for producing forging heating furnaces, limited by the materials used, the service life of forging h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/04F27D1/10
Inventor 胡林李普晏爽任德俊
Owner CHENGDU SHUANGLIU HENGSHENG FORGING
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