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Method and device for manufacturing a grate bar

A technology for grate bars and grate, which is applied in the direction of manufacturing tools, grate, casting and molding equipment, etc., can solve the problems of many processes, high labor intensity, and the production efficiency cannot meet the requirements, so as to achieve simple and efficient operation, improve quality and The effect of efficiency

Active Publication Date: 2021-07-20
BENGANG STEEL PLATES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are several traditional production methods: Some use the green mold sand process to cast grate bars, which has high labor intensity, low efficiency, and poor casting surface quality; some use shell core sand molding, artificial buried sand pouring, and the casting surface quality is poor. It has been improved, but the production efficiency cannot meet the requirements, and the production environment is poor; some of them are produced by string casting using the lost foam process, but there are many processes and the process is more complicated

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  • Method and device for manufacturing a grate bar
  • Method and device for manufacturing a grate bar

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0014] A grate bar, according to the weight percentage, including the following chemical composition, C: 1.7-2.0%; Si: ≤1.0%; Mn: ≤ 1.0%; Cr: 25-27%; Ni: 0.9-1.2%; P: ≤0.035%; S: ≤0.03%, the balance is Fe.

[0015] refer to Figure 1-2 , the present invention also provides a device for making the above-mentioned grate bar, comprising left and right end plates 1, and between the left and right end plates 1, there are a plurality of core pieces 5 that are attached to each other by clamping four groups of bolts 6, each The front and the back of the type chip 5 are all provided with a cavity, and ...

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Abstract

The invention provides a grate bar, a method for manufacturing the grate bar, and a device for manufacturing the grate bar. The present invention reasonably matches the chemical composition of the grate bars and conducts post-furnace treatment, adopts coated sand to make cores, one core with multiple cavities, multiple cores superimposed and chilled pouring process, the operation is simple and efficient, and the manual box embedding operation is canceled. From manual pouring of 2-5 sticks in one scoop to concentrated pouring, 22-24 sticks are poured each time, improving quality and efficiency.

Description

technical field [0001] The invention provides a grate bar, a method for manufacturing the grate bar, and a device for manufacturing the grate bar. Background technique [0002] The production method of ordinary grate bars is inefficient, with one or two pieces per box, the yield rate is not high, and the quality fluctuates greatly; some private enterprises in the south of the Yangtze River rely on low efficiency and high-intensity manual labor to ensure production. Grate bars are normal consumables for sintering production, and each sintering line consumes about 20,000 pieces per year. Every iron and steel enterprise has several sintering lines, and the demand is relatively large. There are several traditional production methods: Some use the green mold sand process to cast grate bars, which has high labor intensity, low efficiency, and poor casting surface quality; some use shell core sand molding, artificial buried sand pouring, and the casting surface quality is poor. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/56B22C9/02B22C9/22B22D15/00F23H17/12
CPCB22C9/02B22C9/22B22D15/00C22C38/02C22C38/04C22C38/56F23H17/12
Inventor 邓守梁万黎明陈宝忠时均伟
Owner BENGANG STEEL PLATES