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

Local granule reinforced piston and its manufacture method

A particle-reinforced, piston technology, applied in the direction of piston, machine/engine, mechanical equipment, etc., can solve the problems of partial reinforced parts falling off, complex process, rapid performance change, etc., to achieve low manufacturing cost, simple process, increase wear resistance sexual effect

Inactive Publication Date: 2009-01-07
CHONGQING UNIV
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above locally reinforced pistons need to prepare prefabricated blocks or composite piston components in the locally reinforced area in advance. The whole process is complicated and the cost is high. Possibility of partial reinforcement falling off, causing potential safety hazard

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
  • Local granule reinforced piston and its manufacture method
  • Local granule reinforced piston and its manufacture method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The reinforced particles at the interface between the reinforced region and the transition layer are more than or equal to 10% by volume; the reinforced particles are SiC ceramic reinforced particles with a particle size of 10-50 μm, and the piston base material is aluminum or aluminum-based alloy.

Embodiment 2

[0025] The reinforced particles at the interface between the reinforced region and the transition layer are 20% by volume; the reinforced particles are SiC ceramic reinforced particles with a particle size of 10-50 μm. The thermal expansion performance of the reinforced area of ​​the piston, the wear resistance and the overall tensile performance of the piston are better than those of the first embodiment.

Embodiment 3

[0027] The reinforced particles at the interface between the reinforced region and the transition layer are 25% by volume; the reinforced particles are SiC ceramic reinforced particles with a particle size of 10-50 μm. The thermal expansion performance of the reinforced area of ​​the piston, the wear resistance and the overall tensile performance of the piston are better than those of the second embodiment.

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention discloses a partial reinforced particle piston and a manufacturing method thereof. The partial reinforced particle piston comprises a head, a skirt section and a pin base. The head comprises a piston top and a ring slot part. The piston top and the ring slot part are reinforced areas which are formed by distributing reinforced particles in piston matrix material. The skirt section is an non-reinforced area. The reinforced area and the non-reinforced area are combined by an alloy combination form. The partial reinforced particle piston not only increases the wearing resistance of the head of a piston and reduces the thermal expansion coefficient, but also ensures the good mechanical performance of the skirt section of the piston and realizes the continuous transition of the organization structure and performance of the partial reinforced area and the non-reinforced area; the effective power of an engine is improved; the service life of the piston is prolonged; in order to manufacturing the piston, the present invention uses a centrifugal casting method to assemble the reinforced particles in melted homogenous composite material at the head of the piston, and the manufacturing method has simple technology and low manufacturing cost.

Description

technical field [0001] The present invention relates to an engine cylinder component, in particular to a partial particle reinforced piston and a manufacturing method thereof. Background technique [0002] The piston is an important part of the engine. The mechanical and thermal properties of the piston have an important influence on the working efficiency, service life and working state of the engine. With the further awareness of energy saving and environmental protection, engine pistons have higher requirements in terms of strength, wear resistance, high precision, low expansion and light weight, followed by the emergence of pistons made of materials such as aluminum alloys with lower density , In order to increase the strength and heat resistance of the aluminum piston with less density, the structure of the piston develops in the direction of composite combination. [0003] In order to solve the problems of wear resistance and high temperature performance of the piston...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F02F3/00B22D13/00B22D15/02
Inventor 刘昌明王开李富强邹茂华
Owner CHONGQING UNIV
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