Low-temperature-resistant and anti-corrosion forging press bearing and preparation method of same

A corrosion-resistant and low-temperature-resistant technology, applied in the field of forging press bearings and their preparation, can solve the problems of poor low-temperature resistance and poor corrosion resistance of bearings, and achieve the effects of strong oxidation resistance, smooth surface and grain refinement.

Inactive Publication Date: 2018-08-24
宁国市顺鑫金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the bearings prepared by the existing technology can play the role of supporting or guiding, and can meet the needs of current industrial production, the bearings prepared by the existing technology have the disadvantages of poor low temperature resistance and corrosion resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A low-temperature and corrosion-resistant bearing for forging presses, the components of which are in parts by weight: 59 parts of iron, 15.2 parts of nickel, 6.5 parts of chromium, 4.6 parts of molybdenum, 4.7 parts of silicon, 3.9 parts of aluminum, 0.9 parts of manganese, and 0.4 parts of copper , 1.0 parts of carbon, 1.1 parts of sulfur and 1.9 parts of phosphorus.

[0022] A method for preparing a bearing for a low-temperature and corrosion-resistant forging press, comprising the following steps:

[0023] a. Mix iron, chromium, aluminum, manganese, nickel, copper and molybdenum, add appropriate amount of water, send it to a ball mill for ball milling, and then spray dry and dry to obtain a mixed component;

[0024] b. Uniformly mix the mixed components with the remaining components and press mold them under a certain pressure. Keep the pressure stable during the pressing process and keep it for 80 minutes to obtain the bearing bush blank;

[0025] c. Place the bea...

Embodiment 2

[0033] A low-temperature and corrosion-resistant bearing for forging presses, the components of which are in parts by weight: 56 parts of iron, 16.2 parts of nickel, 5.8 parts of chromium, 5.0 parts of molybdenum, 4.3 parts of silicon, 4.2 parts of aluminum, 0.7 parts of manganese, and 0.6 parts of copper , 0.9 parts of carbon, 1.2 parts of sulfur and 1.6 parts of phosphorus.

[0034] A method for preparing a bearing for a low-temperature and corrosion-resistant forging press, comprising the following steps:

[0035] a. Mix iron, chromium, aluminum, manganese, nickel, copper and molybdenum, add appropriate amount of water, send it to a ball mill for ball milling, and then spray dry and dry to obtain a mixed component;

[0036] b. Uniformly mix the mixed components with the remaining components and press mold them under a certain pressure. Keep the pressure stable during the pressing process and keep it for 85 minutes to obtain the bearing bush blank;

[0037] c. Place the bea...

Embodiment 3

[0045] A low-temperature and corrosion-resistant bearing for forging presses, the components of which are in parts by weight: 65 parts of iron, 16.9 parts of nickel, 7.6 parts of chromium, 5.5 parts of molybdenum, 5.1 parts of silicon, 4.5 parts of aluminum, 1.3 parts of manganese, and 0.8 parts of copper , 1.4 parts of carbon, 1.5 parts of sulfur and 2.3 parts of phosphorus.

[0046] A method for preparing a bearing for a low-temperature and corrosion-resistant forging press, comprising the following steps:

[0047] a. Mix iron, chromium, aluminum, manganese, nickel, copper and molybdenum, add appropriate amount of water, send it to a ball mill for ball milling, and then spray dry and dry to obtain a mixed component;

[0048] b. Uniformly mix the mixed components with the remaining components and press mold them under a certain pressure. Keep the pressure stable during the pressing process and keep it for 95 minutes to obtain the bearing bush blank;

[0049] c. Place the bea...

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Abstract

The invention relates to the technical field of production of bearings, and particularly relates to a low-temperature-resistant and anti-corrosion forging press bearing and a preparation method of same. The bearing includes, by weight, 56-65 parts of Fe, 15.2-17.5 parts of Ni, 5.8-7.6 parts of Cr, 4.6-6.1 parts of Mo, 4.3-5.1 parts of Si, 3.9-4.7 parts of Al, 0.7-1.3 parts of Mn, 0.4-0.9 parts ofCu, 0.9-1.4 parts of C, 1.1-1.6 parts of S and 1.6-2.3 parts of P. Through comprehensive effects of the raw materials and two times of sintering of a green body of a bearing bush at different temperature increasing speeds, the steel has fine grains and clean crystal boundary, thus improving the mechanical performance and anti-fatigue performance of the steel. The bearing has high hardness and strong low-temperature-resistant and anti-corrosion performances. By means of quenching treatment, the bearing has better anti-oxidizing performance and is smoother in surface. By means of tempering treatment, wearing resistance of the bearing is enhanced. The bearing can be applied to large machinery and can bear intensive impact, thus ensuring service life of the bearing.

Description

technical field [0001] The invention relates to the technical field of bearing preparation, in particular to a low-temperature and corrosion-resistant forging press bearing and a preparation method thereof. Background technique [0002] Bearings are used to determine the relative movement position of the rotating shaft and other parts, and play a supporting or guiding role. Its main function is to support the mechanical rotating body to reduce the friction coefficient of the mechanical load during the transmission process of the equipment. According to the different friction properties of moving elements, bearings can be divided into two types: rolling bearings and sliding bearings. [0003] Bearing is an important basic component of various mechanical equipment, its precision, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the main engine. Among mechanical products, bearings are high-precision products, which n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/12F16C33/14C22C38/44C22C38/34C22C38/06C22C38/04C22C38/42C22C38/60B22F3/02B22F3/10
CPCF16C33/121B22F3/02B22F3/10C22C38/002C22C38/04C22C38/06C22C38/34C22C38/42C22C38/44C22C38/60F16C33/14F16C2204/64F16C2220/06F16C2220/60F16C2220/70F16C2223/10
Inventor 杨继顺
Owner 宁国市顺鑫金属制品有限公司
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