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Method for producing ball mill burnisher

A production method and ball mill technology, which are applied to casting molding equipment, casting molds, cores, etc., can solve the problems of complex production process and high production cost, and achieve the effects of simple operation, low production cost, and improved wear resistance.

Inactive Publication Date: 2005-07-20
攀枝花钢铁有限责任公司钢铁研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its production process is complicated, and because the alloying element Cr is added to the wear-resistant cast iron, the production cost is high

Method used

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  • Method for producing ball mill burnisher

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Embodiment 1

[0021] A method for producing ball mill grinding rods with a size of φ30mm×50mm is that the chemical composition of the grinding rods is selected as (wt, %): 1.8C, 0.9Si, 0.8Mn, 0.2V, 0.09Ti, 2.5Cr, 0.4Cu, 0.15 Ni, P, Sfigure 1 ). The molten steel is smelted in an intermediate frequency induction furnace. The tapping temperature is 1450~1500℃, the pouring temperature is 1400~1450℃, and the box is boxed 10-15 minutes after pouring. The air quenching temperature is 800~900℃. After cooling, it is polished and cleaned. Library.

Embodiment 2

[0023] A method for producing ball mill grinding rods with a size of φ30mm×50mm is that the chemical composition of the grinding rods is selected as (wt, %): 2.0C, 1.3Si, 1.0Mn, 0.2V, 0.09Ti, 2.7Cr, 0.3Cu, 0.10 Ni, P, Sfigure 1 ). The chemical composition of the grinding rod is (wt,%): the molten steel is smelted in an intermediate frequency induction furnace, the tapping temperature is 1450~1500℃, the pouring temperature is 1400~1450℃, the boxing is 10-15 minutes after pouring, and the air quenching temperature is 800~900℃, after cooling, it will be polished and cleaned before storage.

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Abstract

The present invention relates to a production method of grinding rod of ball grinding mill. Its specification is phi 300 mmX50 mm, and its chemical components are (wt%): 1.5-2.2C, 0.8-1.5 Si, 0.6-1.2 Mn, 0.1-0.3V, 0.02-0.1 Ti, 2.0-3.0 Cr, 0.1-0.5 Cu, 0.1-0.2 Ni, P is less than 0.07 and S is less than 0.07. Said invention adopts general clay green sand multiple-part moulding and stack series-injecting processes, and utilizes waste heat of casting self-body to make air quenching process, its air quenching temperature is 800-900 deg.c, after it is cooled, it is snagged so as to obtain the invented product grinding rod whose surface hardness is HRC 50-57 and core hardness is HRC 26-30.

Description

Technical field [0001] The invention belongs to the technical field of ball mill spare parts manufacturing, and in particular relates to a production method of a ball mill rod. Background technique [0002] The ball mill rod is a consumable spare part for fine grinding of powdered materials in the second chamber of the ball mill. The rod is required to be wear-resistant and not broken. If considering the quality of the ground powder, it is hoped that the lower the consumption of the grinding rod, the better, so the wear resistance of the grinding rod is directly related to the quality of the ground powder and the production cost. [0003] In the prior art, some people have conducted a lot of research on the production method of the grinding rod, some start with the casting production process, and some start with the material of the grinding rod itself. In the casting process, the current production basically adopts a single metal mold casting process, and the main problem is that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/20B22C9/20C21D1/18
Inventor 郭元秀胡世红
Owner 攀枝花钢铁有限责任公司钢铁研究院
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