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Improved pulverizer knife holder and production method thereof

A pulverizer and knife holder technology, applied in grain processing, etc., can solve problems such as poor mechanical properties, and achieve the effects of prolonged service life, high strength and hardness, and excellent toughness

Inactive Publication Date: 2013-07-10
宁波大榭信易电热有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problem of poor mechanical properties of the current grinder blade holder, the present invention provides a method for producing a high-strength, high-toughness grinder blade holder

Method used

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  • Improved pulverizer knife holder and production method thereof
  • Improved pulverizer knife holder and production method thereof
  • Improved pulverizer knife holder and production method thereof

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preparation example Construction

[0054] The preparation method of pulverizer knife holder described in the present embodiment is as follows:

[0055] step 1

[0056] According to the chemistry of C3.65-3.80%, Si1.8-2.0%, S0.02%, P0.04%, Mn0.4%, Cr0.1%, Cu0.05%, Al0.03%, and the rest is iron Component ratio, provide scrap steel 250kg, return material 250kg, recarburizer 10kg, ferrosilicon (Fe-Si) 3kg.

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Abstract

The invention provides an improved pulverizer knife holder and a production method thereof. The pulverizer knife holder is an iron casting and comprises the following chemical components by weight percent: 3.2-4.0 % of C, 2.1-3.1 % of Si, less than or equal to 0.4 % of Mn, less than or equal to 0.05 % of P, less than or equal to 0.02 % of S, 0.035-0.05 % of Mg, 0. 01-0.05 % of Cu, 0.001-0.02 % of Ni, and trace rare earth element (or including Ba element as well). During a casting process of the pulverizer knife holder, trace rare earth element or trace Ba element is added, thereby obtaining relatively high intensity and hardness, and good toughness, especially with a percentage elongation being up to 16 %.

Description

technical field [0001] The invention relates to a crushing equipment component, in particular to a crushing tool holder with excellent mechanical properties and a production method thereof. Background technique [0002] The use of knives to crush objects has been applied in more and more fields, such as the crushing of objects such as plastics, garbage, paper, grass, meat, vegetables, and grains. [0003] For example, patent CN102091667A discloses a combination cutter for crushing plastics, including a large blade and a small blade segment spliced ​​by small blades. The large blade and the small blade segments rotate synchronously, and material cutting is realized through the dynamic and static cooperation between the knife groove of the press knife and the blade. During the high-speed rotation of the blade, the blade is crushed after contact with the material, and the blade is easily damaged. In this patented technology, the blade is large in size, and all blades need to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/08B02C18/18
Inventor 赵奕苍
Owner 宁波大榭信易电热有限公司
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