Preparation method of thermal power generation carburization wear-resisting ball

A wear-resistant ball and carburizing technology, which is applied in the field of wear-resistant materials, can solve the problems of poor wear resistance, low impact toughness, and high cost of rare earths, and achieve the effects of increasing the carburizing process, high impact toughness, and convenient raw materials

Inactive Publication Date: 2016-08-17
MAANSHAN YIFENG INDAL GROUP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the existing wear-resistant spherical crystal structure is rough, the hardness is relatively low, the impact toughness is low, and the wear resistance is poor.
The existing Chinese patent is 201310658525.X, a

Method used

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Examples

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Example Embodiment

[0012] A method for preparing carburized wear-resistant balls for thermal power generation includes the following process steps:

[0013] 1), first cast the wear-resistant ball body castings, select the following raw materials in parts by weight: 2.2-2.6 parts by weight of ferromanganese, 25-30 parts of scrap iron, 0.4-0.7 parts of scrap copper plate, 0.3-0.5 parts of slag-forming agent, Put the above-mentioned raw materials into a smelting furnace and undergo desulfurization treatment, then transfer the desulfurized molten liquid into an intermediate frequency induction electric furnace to continue smelting and keep warm, and then add 0.5 to 1.2% of the weight of the molten spheroidizing agent. The chemical treatment temperature is 900~960℃, and the wear-resistant ball body casting is produced by pouring in the mold;

[0014] 2) Put the wear-resistant ball body casting obtained in step 1) into the casting mold for pouring the surface wear-resistant layer, the mass percentage of ea...

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Abstract

The invention discloses a preparation method of a thermal power generation carburization wear-resisting ball. The preparation method comprises the following process steps: firstly, casting a wear-resisting ball body casting, selecting the following raw materials in parts by weight: 2.2 to 2.6 parts of ferromanganese, 25 to 30 parts of scrap iron blocks, 0.4 to 0.7 part of a waste copper plate and 0.3 to 0.5 part of a slag forming constituent, putting the raw materials into a smelting furnace for desulfuration, transferring smelted liquid subjected to desulfuration into a medium-frequency induction furnace for continuous smelting and heat insulation, adding a spheroidizing agent which is 0.5 to 1.2 percent of the weight of the smelted liquid into the medium-frequency induction furnace for spheroidizing at the temperature of 900 to 960 DEG C, and pouring in a die to obtain the wear-resisting ball body casting. According to the preparation method, the wear-resisting ball body and a wear-resisting layer are respectively obtained by pouring twice, so that the wear-resisting ball is high in mechanical property and impact toughness; furthermore, most components in the thermal power generation carburization wear-resisting ball are conventional elements, so that the production cost is low, and the preparation method is convenient to popularize.

Description

technical field [0001] The invention relates to the field of wear-resistant materials, in particular to a method for preparing carburized wear-resistant balls for thermal power generation. Background technique [0002] Wear-resistant ball is a kind of crushing medium used in ball mills, used to crush the materials in the mill, one is white cast iron with chromium as the main alloying element, referred to as chromium alloy cast iron, and the casting mill with chromium alloy cast iron as material The ball is called chromium alloy cast iron grinding ball; the other casting grinding ball made of ductile iron is called ductile iron grinding ball. Wear-resistant balls are mainly used in the production and processing of powder materials in metallurgical mines, cement building materials, thermal power generation and other industries. During the working process of the ball mill, the grinding ball is the main wearable part, which has a great impact on the cost of use; with the develop...

Claims

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Application Information

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IPC IPC(8): B22D19/08B22D19/16C21D1/607C21D9/36C23C8/22C22C37/10C22C37/08
CPCB22D19/085B22D19/16C21D1/607C21D9/36C22C37/08C22C37/10C23C8/22Y02P10/20
Inventor 潘政桃李家宝张学伍
Owner MAANSHAN YIFENG INDAL GROUP
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