Technique of manufacturing steel spade in environment protechion type

A production process and section steel technology, which is applied in the production process field of environmentally friendly steel shovels, can solve the problems of washing waste water discharge polluting the environment, unable to guarantee product quality, and difficult to operate, etc. The effect of complete transformation and improved working environment

Inactive Publication Date: 2004-08-11
付长智
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Problems solved by technology

[0003] During the heating process of heat treatment, the deformation of the workpiece is serious, and manual shaping is required to restore the shape, which not only wastes manpower, but also cannot guarantee product quality due to the difficulty of operation
Moreover, there is no recovery process of quenching medium in the production process, and the washing wastewater is directly discharged to pollute the environment

Method used

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  • Technique of manufacturing steel spade in environment protechion type

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] The present invention is an improvement to the prior art, and the existing two production lines are changed into one production line, and the equipment used includes a roller hearth furnace, a mechanical press, heat treatment equipment (tempering furnace, etc.) and a water washing device. A quenching medium recovery device is installed on the side of the roller hearth furnace, and the washing water of the washing device is connected to the quenching medium recovery device with a recovery pipe. This technique uses liquefied gas after electricity as heating source, and the present invention adopts liquefied gas to heat, and its technological process is as accompanying drawing 1, referring to accompanying drawing 1, the present invention operates production by following steps:

[0019] 1. Put the raw shovel into the roller hearth furnace, and heat...

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Abstract

An environmental protection type technology for manufacturing the steel spade includes heating the raw steel plate in roller furnace, die pressing by mechanical press, rolling its tubular part by a rolling machine, quenching in hardening medium, tempering in tempering furnace, washing in water washing apparatus, heating the sewage by the afterheat of roller furnace for evaporating and concentrating, and recovering the hardening medium. Its advantages are high quality of product, no environmental pollution.

Description

technical field [0001] The invention relates to a production process of an environment-friendly steel shovel, which belongs to the technical field of agricultural machinery manufacturing. Background technique [0002] At present, the production of steel shovels uses coal as a heating source, and the concentration of smoke and dust emissions is high, which seriously pollutes the environment. In the production process, the heating temperature is controlled by manual visual inspection, and the temperature fluctuates greatly, which cannot guarantee the hardness of the workpiece well. The existing production process flow is shown in Figure 2. It has two processes of forming and heat treatment, and each process needs to heat the workpiece. [0003] During the heating process of heat treatment, the deformation of the workpiece is serious, and manual shaping is required to restore the shape, which not only wastes manpower, but also cannot guarantee product quality due to the diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B1/00
Inventor 付长智
Owner 付长智
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