Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Steel-based iron-nickel alloy diffused-type solid self-lubricating bearing and manufacturing method thereof

A solid self-lubricating, iron-nickel alloy technology, applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of self-lubricating bearing bearing capacity and service life, low production efficiency, complex manufacturing process, etc.

Active Publication Date: 2013-03-20
ZHEJIANG CHANGSHENG SLIDING BEARINGS
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bushing with high-strength brass alloy bushing as the base is widely used, and then holes are drilled around the bushing, and graphite particles are embedded in the holes to form a self-lubricating bearing. This kind of self-lubricating bearing is called in the industry. JDB bearings have the disadvantages of high material cost, complicated manufacturing process, and low production efficiency. Due to the existence of graphite holes, the mechanical strength of the bearing is reduced, resulting in poor impact resistance and other shortcomings. In addition, there are blind spots in the arrangement of graphite particles, resulting in boundaries. Insufficient self-lubrication, high friction coefficient and high temperature, these weaknesses make the bearing capacity and service life of self-lubricating bearings greatly reduced
Although there is a patent 2005 2 0013098.0 steel-based nickel alloy self-lubricating skateboard, it is only a flat skateboard, and it cannot fully meet the requirements of high load, variable load, dust resistance, corrosion resistance, impact resistance, edge load resistance, and good heat conduction. performance, a wide temperature range, and suitable for reciprocating, rotating and swinging parts that are frequently started and difficult to form an oil film to meet the requirements of maintenance-free

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steel-based iron-nickel alloy diffused-type solid self-lubricating bearing and manufacturing method thereof
  • Steel-based iron-nickel alloy diffused-type solid self-lubricating bearing and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] The following steps are required to manufacture the steel-based iron-nickel alloy dispersion type self-lubricating bearing with the size of φ50×φ40×30

[0025] A. Preparation of iron-nickel alloy dispersed solid self-lubricating bearing blank

[0026] (1) Ingredients: The weight percentage of raw materials is nickel 15-20%, iron 35-40%, tin 5-8%, titanium powder 0.5-1.0%, molybdenum disulfide 1-4%, aluminum oxide 1- 3%, graphite 1-4%, zinc stearate 1-2%, the balance is copper, the average particle diameter of nickel is 50 μm, the average particle diameter of iron is 50 μm, and the average particle diameter of tin is 100 μm, The average particle size of titanium is not greater than 50 μm, the average particle size of molybdenum disulfide is 1.5 μm, the average particle size of aluminum oxide is not greater than 5 μm, the average particle size of graphite is 4 μm, and the average particle size of copper is 61 μm;

[0027] (2) Mixing: Put the above ingredients into a ZX-...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a steel-based iron-nickel alloy diffused-type solid self-lubricating bearing and a manufacturing method thereof. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing is shaft sleeve-shaped; the exterior of the shaft sleeve is a steel jacket; and the inner wall of the shaft sleeve is a wear-resistant layer formed by compacting and sintering iron-nickel alloy mixed powder. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing is characterized in that the iron-nickel alloy mixed powder comprises 15-20% of nickel, 35-40% of iron, 5-8% of tin, 0.5-1.0% of titanium powder, 1-4% of molybdenum sulfide, 1-3% of aluminum oxide, 1-4% of graphite, 1-2% of zinc stearate and the balance of copper by weight. The manufacturing method of the self-lubricating bearing comprises the following steps of: manufacturing a wear-resistant blank, i.e. blending and stirring the raw materials and carrying out compression molding; manufacturing the steel jacket; and manufacturing the steel-based iron-nickel alloy diffused-type solid self-lubricating bearing, i.e. placing the wear-resistant blank in the steel jacket for vacuum sintering, and carrying out vacuum oil absorption, fine manufacturing and secondary vacuum oil absorption to obtain a finished product. The steel-based iron-nickel alloy diffused-type solid self-lubricating bearing has the characteristics of strong impact resistance, high carrying capacity, wear resistance, low friction coefficients, corrosion resistance and self-lubrication.

Description

[0001] technical field [0002] The invention relates to a self-lubricating bearing of a new material, in particular to a steel-based iron-nickel alloy dispersion type solid self-lubricating bearing and a manufacturing method thereof. Background technique [0003] In excavator body connecting bushings, hydraulic cylinder bushings, construction machinery, heavy industrial equipment connecting bushings, in loaders, forklifts, cranes, as well as injection molding machinery, die-casting machine Green columns, crosshead guide bushings, industrial machinery robots, As well as the bearings used in various stamping and plastic mold guide sleeves, these bearings require high load-bearing capacity, dust resistance, corrosion resistance, impact resistance, good thermal conductivity, and can work normally in a wide temperature range , suitable for reciprocating, rotating and oscillating parts that are frequently started and difficult to form an oil film; and need to have a very low wea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16C33/12F16C33/10C22C30/04C22C32/00B22F7/04
Inventor 孙志华陆忠泉
Owner ZHEJIANG CHANGSHENG SLIDING BEARINGS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com