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Production process of high-speed steel disc harrow

A production process, high-speed steel technology, applied in the direction of manufacturing tools, metal processing equipment, casting molding equipment, etc., can solve the problem of high cost, and achieve the effect of strong penetration into the soil and leveling the ground

Inactive Publication Date: 2016-08-03
LIUZHOU YIHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disc harrow is one of the main machines to replace the nail-tooth harrow. Its main feature is passive rotation and strong ability to cut grass, but the cost is high.

Method used

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  • Production process of high-speed steel disc harrow

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0017] Such as figure 1 As shown, a production process of a high-speed steel disc harrow includes the following steps: smelting and pouring, remelting high-speed steel scrap heads, scrap knives and waste chips in an electric furnace; adding a certain amount to the circuit during the melting process amount of alloying elements; cast high-speed steel disc harrow casting adopts the method of high-temperature casting and low-temperature pouring. , Ti is added to the mold in advance to inoculate the high-speed steel to refine the dendrites.

[0018] Casting molds, sand casting and investment casting, or ceramic and metal casting;

[0019] Heat treatment, cast high-spee...

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Abstract

The invention discloses a production process of a high-speed steel disc harrow. The production process comprises the following steps: smelting and pouring: waste ends of high-speed steel, waste bent cutters and water chips are remelted in an electric furnace; a certain quantity of alloy elements is added in a circuit in the smelting process; the pouring for casting the high-speed steel disc harrow adopts a method of high-temperature furnace discharge and low-temperature pouring; the furnace discharge temperature of the high-speed steel is 1570-1550 DEG C; and the pouring temperature is 1480-1460 DEG C; mold casting: the sand mold casting and the fired mold precise casting are adopted, or the ceramic and metal casting is adopted; and heat treatment: before a cast high-speed steel disc harrow is machined, the annealing firstly performed to eliminate internal stress of devices; and the annealing temperature is 950-980 DEG C, and is higher than the annealing temperature of rolled or forged steel. The production process is simplified, saves labors, and largely reduces the tool cost.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a production process of a high-speed steel disc harrow. Background technique [0002] After the cultivated land, there are large pores between the soil gaps. The degree of looseness of the soil and the flatness of the ground cannot meet the requirements of sowing and planting. Therefore, it is necessary to prepare the soil to create good conditions for the germination and growth of crops. According to the needs of different operations, there are the following types of record, nail-tooth harrow, disc harrow, etc. In some areas, nail-toothed harrows are used for weeding before sowing, after sowing and seedlings, and nail-toothed harrows are mostly used for livestock operations. The disc harrow is one of the main tools to replace the nail-tooth harrow. Its main feature is passive rotation and strong ability to cut grass, but the cost is high. There is a need for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06B22C9/22C21D1/26C21D1/74
CPCC22C33/06B22C9/22C21D1/26C21D1/74C21D2211/007
Inventor 黎健生林建辉
Owner LIUZHOU YIHE TECH
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