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A kind of preparation method of cast iron cage with self-lubricating performance

A cage and cast iron technology, applied in the field of mold hardware accessories, can solve the problems of high implementation cost and complicated preparation process

Inactive Publication Date: 2017-08-01
苏州市大力电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of reducing wear can be achieved by using lubricant or improving the structure of the cage, but the implementation cost of the above measures is high, or the preparation process is complicated, and it cannot fundamentally solve the problem of cage lubrication

Method used

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  • A kind of preparation method of cast iron cage with self-lubricating performance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The specific manufacturing steps of the self-lubricating cast iron cage mentioned in the present invention are as follows:

[0019] a) Material selection and preparation, the main components and percentage ratio of the cast iron cage are: C 3.6%, Si 2.1%, Mn0.7%, Mg 4.5%, RESiFe 1.7%, 75SiFe 1%, MoS2 4%, Trace alloy 0.3%, impurity less than 0.05%, the rest is Fe; among them, Mg and RESiFe components are used as nodulizers for cage materials; 75SiFe components are used as inoculants for cage materials; MoS2 components are used as self-lubricating agents for cage materials; Trace alloys include Cu, Cr, Mo, Ni, Zn, Bi, Sb, Pb, etc.; impurities include P and S, the content of P is controlled below 0.03%, and the content of S is controlled at 0.01%-0.02%;

[0020] b) Melting and mixing, first, add a certain amount of scrap steel and pig iron to the medium-frequency induction furnace, the temperature of the induction furnace is controlled at 1350°C-1380°C, completely melt and...

Embodiment 2

[0026] The specific manufacturing steps of the self-lubricating cast iron cage mentioned in the present invention are as follows:

[0027] a) Material selection and preparation, the main components and percentage ratio of the cast iron cage are: C 3.7%, Si 2.2%, Mn0.75%, Mg 5%, RESiFe 1.5%, 75SiFe 1.2%, MoS2 4.5% , trace alloy 0.25%, impurities below 0.05%, and the rest is Fe; among them, Mg and RESiFe components are used as nodularizers for cage materials; 75SiFe components are used as inoculants for cage materials; MoS2 components are used as self-lubricating agents for cage materials ; Trace alloys include Cu, Cr, Mo, Ni, Zn, Bi, Sb, Pb, etc.; impurities include P and S, the content of P is controlled below 0.03%, and the content of S is controlled at 0.01%-0.02%;

[0028] b) Melting and mixing, first, add a certain amount of scrap steel and pig iron to the medium-frequency induction furnace, and the temperature of the induction furnace is controlled at 1380°C-1400°C to com...

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Abstract

The invention discloses a method for preparing a self-lubricating cast iron cage. The preparation method includes the following steps: a) material selection and preparation, b) melting and mixing, c) modification treatment, d) casting and molding, e) heat treatment, f) Post-processing of finished products. The invention discloses a method for preparing a cast iron cage with self-lubricating properties. The preparation method has reasonable process arrangement, simple process implementation, and moderate preparation cost. The added alloy elements can comprehensively improve various performances of the cage, forming a A more stable and excellent strengthening phase, while the MoS2 component endows the cage with good self-lubrication performance, which effectively improves the wear resistance and service life of the cage.

Description

technical field [0001] The invention relates to a preparation method of a cage, in particular to a preparation method of a cast iron cage with self-lubricating performance, and belongs to the technical field of mold hardware accessories. Background technique [0002] The bearing cage refers to the bearing part that partially wraps all or part of the rolling body and moves with it. It is used to isolate the rolling body, and usually guides the rolling body and keeps it in the bearing. The strength and stability of the bearing cage directly Affect the quality and service life of the bearing. When the rolling bearing is working, the bearing heats up and wears due to sliding friction. Especially under high temperature operating conditions, the action of inertial centrifugal force intensifies the friction, wear and heat. In severe cases, the cage will be burned or broken, resulting in the bearing not working properly. Therefore, in addition to a certain strength, the material of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10C22C33/08C21D5/00
Inventor 陈平
Owner 苏州市大力电器有限公司